Anti-chain-jamming conveying device for increasing material passing space of mining machine

Abstract

An anti-chain-jamming conveying device (1) for increasing a material passing space of a mining machine. The anti-chain-jamming conveying device comprises three-arc anti-disengagement and leakage-preventing members (2), double-hole shaft-fastening members (3) and meshing shaft-plate belt members (4), wherein a convex anti-disengagement and anti-leakage arc (501) is provided at a front portion of each three-arc anti-disengagement and leakage-preventing member and is coaxial with a belt-assembling shaft surface arc (502), and a concave anti-disengagement and anti-leakage arc (503) is provided at a rear portion of each three-arc anti-disengagement and leakage-preventing member and is coaxial with the convex anti-disengagement and anti-leakage arc of a subsequent three-arc anti-disengagement and leakage-preventing member adjacent thereto and a belt-assembling shaft surface arc; the axial-center distance between a front-shaft fastening hole (10) and a rear-shaft fastening hole (11) is equal to the axial-center distance between a front belt-assembling shaft (96) of a preceding three-arc anti-disengagement and leakage-preventing member and a rear belt-assembling shaft (97) of a subsequent three-arc anti-disengagement and leakage-preventing member, with the preceding three-arc anti-disengagement and leakage-preventing member and the subsequent three-arc anti-disengagement and leakage-preventing member engaged with and in contact with each other at front and rear positions; a front-shaft fastening hole arc (578) and a rear-shaft fastening hole arc (579) are respectively engaged with and in contact with belt-assembling shaft surface arcs arranged at front and rear positions; and each preceding three-arc anti-disengagement and leakage-preventing member is tightly engaged with a subsequent three-arc anti-disengagement and leakage-preventing member by means of arcs, such that the arc surfaces of convex anti-disengagement and anti-leakage arcs and the arc surfaces of concave anti-

Description

A chain conveyor device for preventing jamming in the material passage space of an enhanced mining machine Technical Field

[0001] This invention belongs to the field of machinery, specifically relating to an anti-jamming chain conveying device for the material passage space of an enhanced mining excavator. Background Technology

[0002] Currently, tunneling machines are key pieces of equipment in the mining industry, and the conveyors that work with them are chain-driven scraper conveyors.

[0003] The conveying device from the shovel plate to the rear of the main frame of the tunneling machine used in mining is basically a ring chain scraper conveyor, and the conveyor used at the bottom of the coal mining machine is also basically a ring chain scraper conveyor. Practice has proven that the sliding friction ring chain scraper conveyor has the following serious defects:

[0004] ① In actual use, due to the large number and hardness of the mined materials, hard materials such as gangue, sulfur stone, iron ore, and rock often get stuck between the ring chain and the scraper pressure plate, between the ring chain and the bottom plate of the scraper support plate, and at the bottom of the scraper plate when the ring chain pulls the scraper to transport materials. This causes the ring chain and the scraper pressure plate to jam, and the scraper plate to jam, making it impossible for the power to drive the ring chain and scraper plate to work. It can even cause the motor to be overloaded and damaged, resulting in serious losses such as frequent maintenance and production stoppage.

[0005] ② The material transport method of the ring chain scraper conveyor is to use the ring chain to drive the scraper to slide and rub the material. Due to frequent jamming and sliding friction during material transport, the power system will inevitably be increased, which wastes energy and causes huge losses due to frequent damage.

[0006] ③ In order to be able to use high-power motors, the ring chain is made larger to increase strength. The height of the ring chain alone is generally 70-300 mm, which leads to an increase in the height of the scraper conveyor.

[0007] ④ In order to prevent the ring chain from jumping, a complex and high-strength sliding friction pressure chain groove was made on the upper part of the ring chain, which resulted in a large amount of occupation of the material passage of the tunneling machine frame and the material passage of the lower part of the coal mining machine. Due to the large depth of the pressure chain scraper groove (generally 90-330mm), material frequently gets stuck in the double pressure chain scraper groove of the scraper conveyor. The stuck material, scraper and chain and pressure chain scraper groove further increased the sliding friction resistance. In order to overcome the friction resistance, the drive power was further increased, resulting in serious waste of equipment space and kinetic energy. As a result, the material falling from the mining cannot be transported out quickly and smoothly, which greatly reduces the production efficiency.

[0008] ⑤ During mining, water spraying is inevitably used to reduce dust, resulting in high moisture content in the material. The material sticks and clumps on the ring chain and scraper, causing severe scraping of the return material when the ring chain pulls the scraper to the lower part of the scraper conveyor. The water-containing coal slime, stone powder, and lumps on the return trip often clump and block the lower conveyor trough of the scraper. A large amount of clumped material holds the scraper and ring chain, making the scraper unable to work. This also frequently causes the motor to overload and start frequently, resulting in frequent damage.

[0009] ⑥ Scraper conveyors cannot be equipped with side guide wheels in the middle trough, nor can they be equipped with drive shaft guide wheels or limit wheels. Some use double-shaft armor belts as internal conveyors within the main frame. However, due to the large longitudinal width of the double-shaft armor plates and the large turning radius of the double-shaft armor plate conveyor belt, and because the double-shaft armor plates are made of multi-toothed ear armor plates with multiple hooks in each row (at least six per row), the shovel plates of the tunneling machine must be close to the ground to shovel material smoothly. Therefore, the shovel plates must be as thin as possible. Due to the large turning radius of the double-shaft armor plate conveyor belt, the thickness of the shovel plates is increased, making it difficult for the shovel plates to shovel material. It also increases the height of the connection between the shovel plates and the main frame, resulting in a lower material passage space for the main frame. The gaps at the joints of the double-shaft multi-hook armor plates have various shapes, causing serious material leakage. Therefore, double-shaft multi-hook armor plate conveyor belts cannot be used at the shovel plates and main frame of tunneling machines, nor can they be used in the transportation system under the coal mining machine.

[0010] ⑦ The spacing between scraper blades is generally 80mm to 120mm. The material piles up in front of the scraper blades and overflows in large quantities, polluting the environment and wasting materials. This causes the material to form uneven material flow in piles at the top of the scraper, forcing the material receiving port of the lower receiving system to be enlarged, wasting space and materials.

[0011] ⑧ The scraper scrapes coal with high moisture content, coal mining water in the scraper trough, and a large amount of water sprayed from the top to the receiving conveyor belt U-shaped belt for transport. The coal slurry is transported to the coal bunker, which is 25 to 60 meters high and 20 to 35 meters in diameter. Due to the high slurry content, major accidents such as bunker collapses often occur when the bunker is opened for feeding. On March 11, 2024, a coal bunker collapsed in Zhongyang County, Lüliang City, Shanxi Province, resulting in 7 deaths and 2 injuries.

[0012] ⑨ Existing scraper conveyors use scrapers to collect and transport materials on the pallet section by section, resulting in a large accumulation of material in front of the scraper and multiple instances of material leakage and misalignment in the rear of the scraper. This has always been a defect in the primary and secondary transport sections of tunneling machines.

[0013] ⑩ The original tunneling machine's first transport unit is located on the upper part of the main frame and cannot rotate. Its second transport unit is rotated and connected at the bottom of the machine body. When the tunneling machine's first transport unit unloads material to the second transport unit, the first transport unit and the second transport unit are not connected, which causes uneven scraping of materials and causes a large amount of accumulated material in front of the scraper to overflow onto both sides of the transport machine.

[0014] ⑪ Due to the large height of the chain links, the drive gear diameter of the ring chain scraper conveyor is large, resulting in a large overall machine height. This restricts the mining of low-lying coal seam roadways by the ring chain scraper tunneling machine. The scraper conveyor installed under the coal mining machine has a large body height, making it difficult to smoothly guide the material mined by the coal mining machine into the transport trough. When pushing the scraper conveyor from the side of the scraper conveyor towards the coal face, the huge resistance formed by the large amount of material accumulated on the side of the scraper conveyor consumes a lot of energy for pushing the equipment. The height of the scraper conveyor, combined with the height of the coal mining machine, makes it difficult to mine and transport low-lying coal seams, causing the low-lying coal seam resources to be wasted underground and unable to be mined and utilized.

[0015] 12. In integrated mining operations, scraper conveyors are installed in roadways. A toothed rail is installed on one side of the upper part of the scraper conveyor, and a sliding shoe track is installed on the other side. The traveling gear on one side of the mining machine meshes with the toothed rail, while the sliding shoe on the other side steps on the sliding shoe track. This allows the gears to drive the mining machine forward or backward in both directions to mine the ore. After mining one layer of ore, one end of the scraper conveyor is pushed, causing the upper mining head to cut obliquely into the face to be mined. At this point, the pushed section and the unpushed section of the scraper conveyor form a bend. To accommodate the bend in the pushed guide chute, a ring chain is used to drive the scraper for sliding friction scraping of materials. Because the ring chain is segmented, the scraper plates protrude from the outside of the ring chain, creating multiple segmented, uneven structures on both sides of the ring chain. Since mining scraper conveyors are generally between 200 and 500 meters long, with some as long as 60 meters... From 0 to over 800 meters, the diameter of the circular cross-section of each link in the ring chain ranges from 30 mm to 130 mm. The height of the scraper blades is generally between 70 mm and 300 mm. Adding the weight of the material on the guide chute, the power of the drive motor of the existing mining scraper conveyor is generally between 500 kW and 6000 kW, while the power of large scraper conveyors is 8000-9000 kW. Because the front and rear scraper blades are restricted by the curved guide chute, the scraper blades and guide chute are severely jammed and scraped. Although the scraper blades are pulled strongly under the strong pulling force of the drive motor, the scraper blades of the circular chain are quickly damaged. Due to the large height of the scraper blades, when the material between the scraper blades circulates to the lower part of the guide chute, a large amount of scraped return material is carried away. The return material accumulates in the long flat hole at the lower part of the guide chute, forming huge resistance, which aggravates the strong pulling damage between the scraper blades and the chain links, resulting in unstable equipment operation and frequent chain breakage accidents. Meanwhile, the accumulation of material over long distances severely hinders the normal circulation of the scraper, further increasing the motor load, resulting in increased energy consumption, motor overload damage, and increased maintenance frequency, which seriously affects mining operation efficiency and safe production.

[0016] 13 In order to prevent the scraper from moving upward due to material blockage or power pulling, the scraper is equipped with limiting scraper grooves on both sides of the scraper. The grooves on the upper part of the scraper occupy the conveying width, reduce the material conveying efficiency, and become a material accumulation area, making it impossible for a large amount of material to be transported out quickly. When other materials pass through the material accumulation area, the accumulated material causes resistance to transportation.

[0017] 14. Because the scrapers of the scraper conveyor are spaced apart, the structure of the scraper conveyor chain and the scrapers cannot be equipped with baffles that run synchronously with the conveyor belt, resulting in sliding friction resistance between the transported material and other structures and facilities on both sides, which increases the power consumption of the conveyor.

[0018] 15. Some have tried using double-hook ear plates as conveyor belts. However, because the double-hook ear plates are locked together front and back, and the left and right sides are locked together by the interlocking teeth, when the coal mining machine needs to push the front and rear guide belt grooves of the lower conveyor to bend and misalign, the double-hook ear plate belt cannot bend laterally because the double-hook ear plates are locked together and misaligned. The double-hook ear plates are stuck in the guide belt grooves, severely jamming the guide belt grooves and preventing operation. As a result, to date, only ring chain scraper conveyors can be used to adapt to the lateral bending of the coal seam under the coal mining machine to transport the mined coal. However, both scraper conveyors and double-hook ear belt conveyors have serious drawbacks and fatal defects when the guide troughs are misaligned and misaligned.

[0019] 16. Since the scraper blades of the scraper conveyor are spaced apart, it is impossible to install a material blocking plate on the scraper guide chute. When a lateral shift gap appears in the scraper guide chute, the material will enter the guide chute from the gap.

[0020] 17. The connection method of the front and rear guide troughs of the old scraper conveyor is to use figure-eight buckles and pins or dumbbell pins to connect the two sides of the guide trough. This causes misalignment at the front and rear joints when the side push guide trough bends. The misaligned guide trough forms a convex corner in the conveyor trough. When the conveyor belt passes through the convex corner, it will seriously collide with the convex corner and even cause the ring chain to break.

[0021] To prevent the conveyor chain from jumping upwards, the upper left and right chute bars of the 18 scraper conveyor are equipped with inward-clamping anti-scraping pressure plates. The width of one pressure plate is generally 80mm to 180mm, and the space occupied by both sides is 160mm to 360mm. When loading the scraper conveyor for coal mining machines, the side-push scraper pushes the mined coal from the side of the scraper into the conveying section of the scraper. The pressure plates of the scraper chain occupy a large part of the conveyor's conveying width, causing the material on them to pile up on top of the pressure plates and not be able to be transported out. This stagnant material creates resistance to the loading and unloading process, requiring manual shoveling on site, which consumes a lot of power and manpower for pushing the scraper. To solve this problem, this solution proposes a material width increaser on the clamping chute.

[0022] Material buildup between the upper and lower return belts of the 19 transport aircraft caused by various reasons, resulting in huge resistance to the operation of the transport belt. Severe material buildup and caking caused major accidents such as belt seizure and motor burnout, which seriously delayed safe production and reduced production efficiency.

[0023] Mining plate feeders are used for transporting ore to resist impact and wear. Their structure involves bolting steel plates to the upper part of a heavy roller chain link, arranging the steel plates into a chain plate feed belt. Because the chain plates are located in the middle of the chain link, large gaps appear between the front and rear chain plates when passing over the rollers. Heavy-duty chain plate feeders with a transport capacity exceeding 300 tons per hour, due to their large structural dimensions, generally have gaps exceeding 30mm when passing over the rollers. The conveyor belt surface suffers from severe material leakage due to poor fastening, resulting in serious material accumulation between the upper and lower belts. Some feeders place the roller chain at the lower part of the chain plate, which occupies the space of the idler rollers, making it impossible to install idler rollers. Alternatively, rollers are placed between the two chains, which increases the complexity of the structure of supporting roller brackets between the upper and lower conveyor belts. This makes the height of the chain plate feeder exceed that of the scraper feeder, making it even more unsuitable for use in mining and transportation systems with tunneling machines and coal mining machines.

[0024] A type of conveyor belt with a concave front and convex rear coaxial interlocking single shaft, where the shafts of the connecting pieces on both sides are shortened and connected by Z-shaped buckles, can only be used as an anti-impact armor belt on a belt conveyor. When the conveyor belt shaft is lengthened and multiple rows of figure-eight chain plates and chain rollers are connected in series to form a roller chain with meshing drive gears on both sides, the side shaft length of the roller chain belt doubles. Its drawback is:

[0025] 1. The increased length of the traction shaft, which bears the dynamic force, reduces its tensile and bending strength;

[0026] 2. The material accumulates in the middle of the belt, where the weight is greater. Extended shafts are used on both sides of the conveyor belt to bear the transport tension, which leads to frequent accidents of bending or breaking of the long shafts.

[0027] 3. In order to transport 800 to 6000 tons of coal, iron ore, rock, quartz, etc. per hour by meshing drive gears, large gaps must be set between the shafts to make the drive gears large in the front and back and left and right. These large gaps will cause serious material leakage in the guide chute, causing coal, iron ore, gangue, quartz, etc. to quickly fill between the upper and lower belts, resulting in increased transport resistance and material waste. When the leaked material cakings and starts transport, it often leads to motor burnout and environmental pollution. If placed on the outside of the guide chute, this roller chain belt must not be used in mining production and transport sites for coal, iron ore, coke, quartz, etc. Therefore, since the implementation of mechanized mining, the transport equipment matched with mining tunneling machines and coal mining machines has been all ring chain scraper conveyors. However, many defects of scraper conveyors have not been resolved to this day.

[0028] 4. Since the conveyor belt for transporting minerals typically has a capacity of 800 to 6,000 tons per hour, the belt surface of the conveyor is made wide. This results in large dimensions of the single-shaft conveyor belt components. Due to the high manufacturing difficulty, it is difficult to ensure that the front and rear conveyor plates are tightly fastened together, resulting in large transverse gaps in the conveyor belt surface. Because of the large gaps, a large amount of material quickly accumulates between the upper and lower belts, causing transport resistance. In some cases, the accumulated material may even clump together and seize the conveyor belt, causing overload and burnout of the drive motor.

[0029] 5. The conveyor belt is made of cast steel or machined steel. Because the specific gravity of steel is about 7.9, the conveyor belt is heavy, prone to rust, difficult to maintain on site, and increases the power of the drive motor.

[0030] In mining production and transportation, the large size of materials such as coal, gangue, iron ore, and gypsum creates a strong impact on conveyor belts. Therefore, steel plate belt conveyors are essential in coal mines. However, due to the loose fastening between the steel plates in older steel plate belts, material leakage is severe, leading to blockages between the upper and lower belts. This makes the conveyor difficult to operate, and in cases of significant caking, it frequently causes serious malfunctions such as motor overload and burnout during startup. Therefore, removing the blockages from the underside of the steel plate belt has been a major challenge for many years!

[0031] Currently used and previously employed cleaning devices, such as head scrapers, scrapers with intermediate baffles, brush cleaners, and spiral cleaners, cannot effectively solve the long-standing problem of severe material leakage and blockage!

[0032] Because the scraper at the machine head can only scrape off the adhesive material at the head of the conveyor, the scraper inside the conveyor belt pushes out the clogging material by blocking and separating the material. However, since the scraper is static, the clogging material is often blocked in front of the scraper, causing it to accumulate more and more, creating great resistance to the conveyor. As for the spiral cleaner, because its spiral blades are filled with mud material, the material in the spiral blade area caking and forming a cylindrical mud roller, which makes it impossible for the spiral cleaner to push the material outward.

[0033] To address the aforementioned issues, this application proposes an anti-jamming chain conveyor device for the material passage space of an excavator. Summary of the Invention

[0034] This invention is achieved using the following technical solution: The anti-jamming chain conveyor device for the material passage space of an enhanced mining excavator includes a four-arc coaxial anti-loosening structure. This structure comprises a three-arc anti-loosening component, a double-hole buckling component, and a meshing shaft plate belt component. The three-arc anti-loosening component includes an anti-loosening convex arc, a belt shaft surface arc, and an anti-loosening concave arc. The anti-loosening convex arc is located at the front of the three-arc anti-loosening component and is coaxial with the belt shaft surface arc. The anti-loosening concave arc is located at the rear of the three-arc anti-loosening component and is coaxial with the anti-loosening convex arc and belt shaft surface arc of the adjacent subsequent three-arc anti-loosening component. The double-hole buckling component has a front buckling shaft hole and a rear buckling shaft hole. The front buckling shaft hole leads to the buckling... The center distance of the rear axle hole is the same as the center distance from the front group shaft of the front three-arc anti-detachment and leak-proof component to the rear group shaft of the rear three-arc anti-detachment and leak-proof component. The center line of the front axle hole is the same as the center line of the front group shaft of the front three-arc anti-detachment and leak-proof component, and the center line of the rear axle hole is the same as the center line of the rear group shaft. The front axle hole includes the front axle hole arc, and the rear axle hole includes the rear axle hole arc. The front axle hole arc and the rear axle hole arc are respectively attached to the front and rear group shaft surface arcs, tightly connecting the front three-arc anti-detachment and leak-proof component, so that the anti-detachment convex arc and the anti-detachment concave arc surface are tightly attached, preventing the anti-detachment concave arc from being attached. The anti-loosening convex arc of the detached three-arc anti-loosening leak-proof component, the anti-loosening concave arc, and the anti-loosening convex arc, the belt shaft surface arc, and the buckle rear shaft hole arc that interlock with the belt shaft surface arc of the detached three-arc anti-loosening leak-proof component are aligned with the same axis, forming a four-arc coaxial anti-loosening structure. The three-arc anti-loosening leak-proof component includes a three-arc sealing material carrier and a belt shaft. The anti-loosening concave arc includes an anti-loosening concave arc surface line, and the anti-loosening convex arc includes an anti-loosening convex arc surface line. This ensures that the distance between the axis lines of the front belt shaft and the rear belt shaft is equal to the distance between the axis lines of the buckle front shaft hole and the buckle rear shaft hole. This ensures that the distance between the axis lines of the front belt shaft of the previous three-arc anti-loosening leak-proof component and the anti-loosening convex arc of the detached three-arc anti-loosening leak-proof component is equal to the distance between the axis lines of the buckle front shaft hole and the buckle rear shaft hole. The minimum distance between the concave arc surface and the minimum distance between the centerline of the rear group of belt shafts of the three-arc anti-loosening and leak-proof component and the minimum distance between the convex arc surface of the anti-loosening and leak-proof component itself is the minimum distance between the front and rear anti-loosening and buckling arc surfaces. The minimum distance between the front and rear anti-loosening and buckling arc surfaces is the same as the distance between the centerline of the front buckling shaft hole and the centerline of the rear buckling shaft hole of the double-hole buckling component. The distance between the centerlines of the front buckling shaft hole and the rear buckling shaft hole is set as the distance between the centerlines of the connecting shaft hole. Under the constraint of the distance between the centerlines of the connecting shaft hole, the minimum distance between the front and rear anti-loosening and buckling arc surfaces ensures that the centerline of the front group of belt shafts is used as the radius to make the front group of belt shafts always rotate around the centerline of the rear group of belt shafts at equal distances. Because the three-arc anti-loosening and leak-proof component has only one minimum anti-loosening concave arc surface line from the axis of the belt assembly to its own anti-loosening concave arc surface, other anti-loosening concave arc surface lines are arranged on both sides of the minimum anti-loosening concave arc surface line. These other anti-loosening concave arc surface lines include those above and below the minimum anti-loosening concave arc surface line. The distance from any of these other anti-loosening concave arc surface lines to the axis of the same belt assembly is greater than the distance from the minimum anti-loosening concave arc surface line to the axis of the same belt assembly.The upper concave arc surface prevents the front three-arc anti-detachment leak-blocking component from detaching downwards from the rear three-arc anti-detachment leak-blocking component, and the lower concave arc surface prevents the front three-arc anti-detachment leak-blocking component from detaching upwards from the rear three-arc anti-detachment leak-blocking component. Therefore, under the constraint of the double-hole buckle component, the minimum distance between the front and rear anti-detachment buckle arc surfaces limits the anti-detachment leak-blocking concave arc surface of the front three-arc anti-detachment leak-blocking component to prevent it from flipping relative to the anti-detachment leak-blocking convex arc of the rear three-arc anti-detachment leak-blocking component. The anti-detachment leak-blocking concave arc always runs in contact with the anti-detachment leak-blocking convex arc, ensuring that the front and rear buckled three-arc anti-detachment leak-blocking components always operate with their arc surfaces in a sealed manner, thus enabling multiple front and rear three-arc anti-detachment leak-blocking components to operate in a sealed manner. The fastening components form a large arc-shaped locking anti-loosening band. The length of the arc surface where the anti-loosening concave arc and the anti-loosening convex arc engage is greater than the length of the large arc-shaped locking anti-loosening band when it passes through the meshing shaft plate belt component. When the anti-loosening concave arc of the first three arc anti-loosening components engages the anti-loosening convex arc of the last three arc anti-loosening components, the length of the exposed anti-loosening convex arc segment is rotated downward around the belt axis of the last three arc anti-loosening components. This ensures that the arc surface where the anti-loosening concave arc and the anti-loosening convex arc engage always has a locking and sealing section. The three-arc anti-loosening components or the double-hole fastening shaft component are provided with a shaft plate belt meshing mechanism that meshes with the meshing shaft plate belt component. The shaft plate belt meshing mechanism includes a blind hole with internal fastening teeth on the shaft plate. Alternatively, the shaft plate may have protruding teeth. The front and rear shaft holes are respectively fastened to the front and rear belt shafts. Multiple double-hole shaft fasteners are staggered to connect multiple three-arc anti-detachment and leak-proof components. The front and rear three-arc anti-detachment and leak-proof components are connected to form a toothed conveyor belt. The three-arc anti-detachment and leak-proof components include single-shaft or double-shaft components. The meshing shaft plate belt components include blind-hole shaft plate gears or blind-hole shaft plate rollers. The shaft plate belt meshing mechanism meshes with the blind-hole shaft plate gears or blind-hole shaft plate rollers. The blind-hole shaft plate gears drive the shaft plate belt meshing mechanism, which in turn drives the toothed conveyor belt to transport materials. The deblocking and leakage-removing component includes a belt assembly, which is equipped with a buckle engagement mechanism that meshes with the meshing shaft plate belt. The buckle engagement mechanism meshes with the buckle blind hole shaft plate gear. The belt assembly includes a three-arc sealed material carrier and a belt assembly shaft. The three-arc sealed material carrier can be a solid three-arc sealed material carrier or a hollow three-arc sealed material carrier. The belt assembly shaft and the three-arc sealed material carrier are either separately connected or integrated. The buckle front shaft hole and buckle rear shaft hole respectively buckle the front belt assembly shaft and buckle the rear belt assembly shaft, so that the belt assembly is buckled front and rear to form a belt assembly meshing belt. The belt assembly meshing belt buckles with the meshing shaft plate belt and rolls and rubs to transport materials. The three-arc anti-detachment and leakage-blocking component includes a toothed blind hole shaft plate, a toothed shaft plate, or a flat toothed arc shaft plate. When using a toothed blind hole shaft plate, the shaft plate includes a bottom toothed blind hole, and both ends of the shaft plate are equipped with belt shafts. The double-hole shaft fasteners connect the front and rear belt shafts, making the front and rear toothed blind hole shaft plates a blind hole toothed shaft plate belt. The meshing shaft plate belt component has a toothed shaft plate protrusion that engages with the bottom toothed blind hole of the shaft plate. The bottom toothed blind hole of the shaft plate meshes with the toothed shaft plate protrusion, and the meshing shaft plate belt component drives the bottom toothed blind hole of the shaft plate. The toothed shaft plate protrusion drives the blind hole toothed shaft plate belt to transport materials. Using a toothed blind hole shaft plate reduces the overall height of the transport section.

[0035] The toothed shaft plate includes a bottom toothed shaft plate, and belt shafts are provided at both ends of the toothed shaft plate. Double-hole fastening shaft components are fastened to the belt shafts, making the toothed shaft plate a toothed arc-shaped shaft plate belt. The meshing shaft plate belt component has a blind hole groove for fastening the bottom toothed shaft plate. The blind hole groove for fastening the bottom toothed shaft plate meshes with the bottom toothed shaft plate. A power component drives the meshing shaft plate belt component, which in turn drives the blind hole groove for fastening the bottom toothed shaft plate. The blind hole groove for fastening the bottom toothed shaft plate drives the toothed arc-shaped shaft plate belt to transport materials. When a flat arc-shaped shaft plate is used, the double-hole fastening shaft component includes a blind hole fastening tooth connector or a toothed double-hole fastening shaft component. The blind hole fastening tooth connector includes a connector with a blind hole fastening tooth, or the toothed double-hole fastening shaft component includes... The device includes a bottom protruding tooth of the connector, and two ends of the flat arc-shaped shaft plate are provided with a belt shaft. A blind hole toothed connector is set on the belt shaft to form a blind hole toothed connector belt. The meshing shaft plate belt is provided with a driving double hole toothed shaft that engages with the blind hole of the connector tooth. The driving double hole toothed shaft engages with the blind hole of the connector tooth, and the driving double hole toothed shaft drives the blind hole toothed connector belt to transport materials. Alternatively, the meshing shaft plate belt is provided with a driving shaft plate tooth blind hole groove that engages with the bottom protruding tooth of the connector. The double hole toothed shaft is connected to the belt shaft to form a toothed connector belt. The meshing shaft plate belt drives the double hole toothed shaft, which in turn drives the toothed connector belt to transport materials.

[0036] The belt assembly includes a three-arc seal single shaft assembly or a three-arc seal double shaft assembly. When using a three-arc seal single shaft assembly, the double-hole buckle shaft assembly includes a connecting single shaft plate assembly, the meshing shaft plate belt assembly includes a meshing single shaft plate belt assembly, and also includes a power component. The meshing single shaft plate belt assembly includes a buckling single shaft plate gear or a buckling single shaft plate roller. The three-arc seal single shaft assembly or the connecting single shaft plate assembly is equipped with a single shaft plate belt meshing mechanism. The single shaft plate belt meshing mechanism meshes with the buckling single shaft plate gear or the single shaft plate belt meshing mechanism meshes with the buckling single shaft plate roller. The three-arc seal single shaft assembly includes a three-arc seal material carrier and an assembly shaft. The three-arc seal material carrier includes a solid three-arc seal material carrier or a hollow three-arc seal material carrier. The assembly shaft and the three-arc seal material carrier are separately connected and fixed or are integrated. The single-shaft plate component has a front single-shaft plate hole and a rear single-shaft plate hole. The front single-shaft plate hole and the rear single-shaft plate hole respectively fasten the front group belt shaft and the rear group belt shaft, so that the three-arc sealing single-shaft component is fastened to form a three-arc coaxial sealing single-shaft plate belt. The power component drives the meshing single-shaft plate belt component, and the meshing single-shaft plate belt component drives the single-shaft plate belt meshing mechanism. The three-arc coaxial sealing single-shaft plate belt fastens the meshing single-shaft plate belt component and the rolling friction transports the material. The three-arc sealing single-shaft component includes a toothed blind hole single-shaft plate, a toothed single-shaft plate, or a flat toothed arc single-shaft plate. When using a toothed blind hole single-shaft plate, the toothed blind hole single-shaft plate includes a toothed blind hole at the bottom of the single-shaft plate. The toothed blind hole single-shaft plate has single-shaft plate convex shafts at both ends, and the single-shaft plate shaft holes of the single-shaft component fasten the front and rear single-shaft plate convex shafts. The shaft causes the blind-hole single-shaft plate with snap teeth to become a blind-hole snap-tooth single-shaft plate belt. The meshing single-shaft plate belt component has snap-tooth protrusions that engage with the bottom snap-tooth blind holes of the single-shaft plate. The bottom snap-tooth blind holes of the single-shaft plate mesh with the snap-tooth protrusions of the single-shaft plate. The meshing single-shaft plate belt component drives the bottom snap-tooth blind holes of the single-shaft plate, and the snap-tooth protrusions of the single-shaft plate drive the blind-hole snap-tooth single-shaft plate belt to transport materials. When a flat snap-arc single-shaft plate is used, the connecting single-shaft plate component includes a snap-tooth blind-hole connecting single-shaft component or a protrusion connecting single-shaft component. The snap-tooth blind-hole connecting single-shaft component includes a bottom snap-tooth blind hole of the connecting single-shaft plate, and the protrusion connecting single-shaft component includes a bottom protrusion of the connecting single-shaft plate. The flat snap-arc single-shaft plate has single-shaft plate protrusions at both ends. The snap-tooth blind-hole connecting single-shaft component's shaft hole connects the front and rear single-shaft plate protrusions to become a snap-tooth blind-hole connecting single-shaft plate belt, and the meshing single-shaft plate belt... The shaft plate belt component is provided with a drive single shaft plate protrusion that engages with the blind hole of the bottom snap tooth of the connecting single shaft plate. The drive single shaft plate protrusion engages with the blind hole of the bottom snap tooth of the connecting single shaft plate, and the drive single shaft plate protrusion drives the blind hole of the snap tooth to transport materials. When using a three-arc sealed double shaft component, the three-arc sealed double shaft component includes a three-arc sealed material carrier body and a three-arc anti-detachment material carrier body double shaft. The lower part of the three-arc sealed material carrier body is provided with a three-arc anti-detachment material carrier snap tooth blind hole that engages with the meshing shaft plate belt component. The double hole snap shaft component includes a connecting double shaft plate component, and the meshing shaft plate belt component includes a meshing double shaft plate belt component. The meshing double shaft plate belt component includes a snap double shaft plate gear or a snap double shaft plate roller. The snap double shaft plate gear engages with the blind hole of the three-arc anti-detachment material carrier snap tooth to drive the three-arc sealed double shaft component to transport materials.

[0037] The anti-jamming conveyor device for the material passage space of the tunneling machine also includes the tunneling machine frame and a shovel and collect plate. The rear of the tunneling machine frame is equipped with a supporting meshing shaft plate and belt structure, which supports the meshing shaft plate and belt and the power component. The shovel and collect plate is fixedly connected or hinged to the tunneling machine frame. The shovel and collect plate has a buckle plate driven component that mates with the meshing shaft plate and belt. A toothed conveyor belt surrounds the meshing shaft plate and belt and the buckle plate driven component. The power component drives the meshing shaft plate and belt, causing the toothed conveyor belt to rotate around the meshing shaft plate and belt and the buckle plate driven component. The toothed conveyor belt transports the material collected by the shovel and collect plate to the rear end of the frame. A three-arc anti-loosening and leak-proof component or a double-hole buckle is also included. The upper surface of the shaft includes a material-stopping mechanism, which includes a material-stopping long plate, a material-stopping round protrusion, a material-stopping short plate, a material-stopping tooth, or a material-stopping groove. This mechanism prevents material from slipping off the belt shaft or double-hole buckle shaft. One or both sides of the meshing shaft plate belt are equipped with a blind-hole belt misalignment prevention mechanism, which includes a blind-hole belt misalignment retaining ring, a belt misalignment wheel, or a belt misalignment stop platform. The blind-hole belt misalignment retaining ring is movably connected to or integral with the meshing shaft plate belt. The anti-deviation plate belt with a derailment stop is movably connected to or integrated with the meshing shaft plate belt. The anti-deviation plate belt with a derailment wheel is mounted on the tunneling machine frame or on the shovel and collect plate. The anti-deviation plate belt with a derailment wheel prevents the toothed conveyor belt from deviating and causing wear on the tunneling machine frame or the shovel and collect plate. The anti-deviation plate belt with a derailment wheel includes a flat anti-deviation wheel or a grooved anti-deviation wheel. When a grooved anti-deviation wheel is used, it includes a groove on the outer circumference of the wheel. The side of the toothed conveyor belt is embedded in the groove on the outer circumference of the wheel, and the groove on the outer circumference of the wheel prevents the toothed conveyor belt from jumping up and down. Alternatively, it can be mounted on the tunneling machine frame or the shovel and collect plate. The receiving plate is equipped with a toothed conveyor belt pulley. When the bottom of the material trough formed by the receiving plate and the tunneling machine body frame is not straight, or when the receiving plate is raised and is not straight with the bottom of the material conveying space of the tunneling machine body frame, the toothed conveyor belt pulley prevents the toothed conveyor belt from shifting up and down. The tunneling machine body frame is equipped with a pressing engagement mechanism wheel near the meshing shaft plate belt component. The pressing engagement mechanism wheel is located on the upper part of the toothed conveyor belt at the meshing point of the shaft plate belt meshing mechanism and the meshing shaft plate belt component, preventing the shaft plate belt meshing mechanism and the meshing shaft plate belt component from failing to mesh due to the toothed conveyor belt floating up.

[0038] The anti-jamming conveyor device for the material passage space of the excavator includes idlers and a toothed belt guide trough inside the blind hole shaft plate. The toothed belt guide trough inside the blind hole shaft plate is integrated with or separate from the main frame of the excavator. The idlers are supported by the main frame of the excavator, the shovel collecting plate, or the toothed belt guide trough inside the blind hole shaft plate. The idlers include upper idlers on the shaft plate and / or lower idlers on the shaft plate. The upper idlers on the shaft plate are located between the meshing shaft plate belt and the driven part of the buckling shaft plate, and roll and rub to lift the material section of the buckling conveyor belt. The lower idlers on the shaft plate are located at the bottom of the buckling conveyor belt to prevent the buckling conveyor belt from falling.

[0039] The anti-jamming chain conveyor device for the material passage space of the excavator includes a multi-directional leak-proof conveyor. The multi-directional leak-proof conveyor includes a toothed belt with a shaft assembly and a sealing surface guide chute. The toothed belt with a shaft assembly includes a three-arc anti-detachment seal and a gear roller. The three-arc anti-detachment leak-proof component includes a three-arc anti-detachment sealing groove, which is located in the area between the front and rear three-arc anti-detachment leak-proof components' interlocking sealing surfaces when they pass through the gear roller. The three-arc anti-detachment sealing groove includes a convex arc surface sealing groove or a concave arc surface sealing groove. The arc-shaped sealing groove, with the three-arc anti-detachment seal set in the convex arc-shaped sealing groove or the three-arc anti-detachment seal set in the concave arc-shaped sealing groove, seals the gap between the three-arc anti-detachment and leak-proof components to form a three-arc anti-detachment sealing strip. The material guide groove of the sealing strip surface includes a material guide groove bar, a sealing groove cover plate, and a material groove cover plate seal. The material guide groove bar supports the sealing groove cover plate, and the material groove cover plate seal is set between the sealing groove cover plate and the three-arc anti-detachment sealing strip to prevent material from leaking from between the sealing groove cover plate and the three-arc anti-detachment sealing strip.

[0040] Three-arc leak-proof components include metal, nylon, polymer, or plastic three-arc leak-proof components. Composite material three-arc leak-proof components include metal-plastic, metal-rubber, metal-polymer, ceramic-nylon, nylon-metal, or ceramic-metal three-arc leak-proof components. When using metal-plastic three-arc leak-proof components, an injection mold is made. The metal-plastic three-arc leak-proof component includes a metal assembly shaft and a plastic carrier plate. The metal assembly shaft is positioned in the injection mold, with both ends of the metal assembly shaft extending... The plastic casting area ensures that the end of the metal belt axle is not covered by plastic. Plastic is then cast into the injection mold of the three-arc anti-detachment and leak-proof component, making the cast portion of the metal belt axle and the plastic carrier plate an integrated mechanism. The end of the metal belt axle is fastened to the connecting shaft assembly, subjecting the metal belt bearing of the metal-plastic three-arc anti-detachment and leak-proof component to strong transport tension. This allows the metal belt axle to drive the plastic carrier plate to transport materials, reducing the weight of the conveyor belt and increasing its corrosion resistance. When using a composite material three-arc anti-detachment and leak-proof component, the composite material three-arc anti-detachment and leak-proof component includes a high-strength skeleton and a wear-resistant enclosure. The high-strength skeleton includes a belt axle and a skeleton carrier component. The end of the skeleton carrier component is equipped with the belt axle. The skeleton carrier component includes elliptical skeleton carrier components, trapezoidal skeleton carrier components, and square skeleton carrier components. The material can be a circular skeleton material carrier or a flat, irregularly shaped skeleton material carrier. When using a flat, irregularly shaped skeleton material carrier, it includes a connecting shaft section and a flat material carrier section. One end of the connecting shaft section is connected to or integrated with the assembly shaft, and the other end is connected to or integrated with the flat material carrier section. The connecting shaft section and the flat material carrier section together form the skeleton material carrier. The assembly shaft includes a snap-fit ​​assembly shaft or a snap-gear assembly shaft. When using a snap-fit ​​assembly shaft, the snap-fit ​​assembly shaft is snapped with a double-hole snap-fit ​​shaft. The skeleton material carrier is provided with a snap-fit ​​gear groove on the connecting shaft. The snap-fit ​​gear groove includes a skeleton gear through-hole groove or a skeleton gear blind hole groove. When using a skeleton gear through-hole groove, the skeleton gear through-hole groove includes a skeleton flat-bottomed gear through-hole groove or a skeleton positioning groove. The frame includes a gear through-hole groove, a meshing shaft plate belt including a drive composite shaft plate tooth of a meshing composite material three-arc anti-disengagement and leakage-blocking component, the height of the drive composite shaft plate tooth being equal to or less than the height of the frame gear through-hole groove, the frame positioning frame gear through-hole groove including a limiting gear platform, the limiting gear platform restricting the drive composite shaft plate tooth from pushing the wear-resistant wrapping body on the upper part of the frame positioning frame gear through-hole groove, the high-strength frame including a flat material carrier plate or a toothed material carrier plate, the toothed material carrier plate including a unidirectional drive structure or a bidirectional drive structure, the bidirectional drive structure including a front tooth drive part and a rear tooth drive part, when transporting materials forward, the drive composite shaft plate tooth meshes with the front tooth drive part to transport materials forward, when transporting materials backward, the drive composite shaft plate tooth meshes with the rear tooth drive part to transport materials backward;Position the high-strength skeleton within the injection mold of the three-arc anti-detachment and leak-proof component, ensuring that both ends of the belt shaft extend beyond the area where the wear-resistant coating is cast, preventing the ends of the belt shaft from being covered by the wear-resistant coating. Pour the wear-resistant coating material into the injection mold of the three-arc anti-detachment and leak-proof component. The wear-resistant coating is made of a lightweight material, lighter than the high-strength skeleton material. This allows the high-strength skeleton of the composite material three-arc anti-detachment and leak-proof component to withstand strong transport tension, enabling the meshing shaft plate belt component to drive the connecting belt shaft component to engage the gear groove for transporting materials. This reduces the weight of the conveyor belt, increases its corrosion resistance, and eliminates the material leakage area on the upper part of the gear meshing belt shaft. When using a gear-engaged belt shaft, position the high-strength skeleton within the injection mold of the three-arc anti-detachment and leak-proof component, ensuring that both ends of the gear-engaged belt shaft extend beyond the area where the wear-resistant coating is cast, preventing the ends of the gear-engaged belt shaft from being covered by the wear-resistant coating. The wear-resistant encapsulation material is poured into the injection mold of the three-arc anti-detachment and leak-proof component. The wear-resistant encapsulation material is made of lightweight material, which is lighter than the high-strength skeleton material. The buckling gear set belt shaft is connected to the meshing shaft plate belt and has a buckling meshing shaft plate belt structure. This allows the buckling gear set belt bearing of the composite material three-arc anti-detachment and leak-proof component to be subjected to strong transport tension. This causes the meshing shaft plate belt to drive the buckling gear set belt shaft to transport materials, reducing the weight of the conveyor belt and increasing the corrosion resistance of the conveyor belt. The skeleton material-carrying component includes a driven body in front of the buckling gear groove and a driven body behind the buckling gear groove. The vertical height of the driven body in front of the buckling gear groove and / or the driven body behind the buckling gear groove is less than the horizontal width of the driven body in front of the buckling gear groove and / or the driven body behind the buckling gear groove, which increases the shear resistance of the driven body in front of the buckling gear groove and the driven body behind the buckling gear groove, and increases the thickness of the wear-resistant encapsulation. The skeleton material carrier includes plate-type connected belt shaft components or porous encapsulated body connected belt shaft components. When using porous encapsulated body connected belt shaft components, encapsulated body holes are provided on the skeleton material carrier to allow the wear-resistant encapsulated body to be injected into the encapsulated body holes, thereby enhancing the strength of the skeleton material carrier and the wear-resistant encapsulated body, reducing the weight of the skeleton material carrier, thinning the belt surface height, and lowering the transport height.

[0041] The anti-jamming chain conveyor device for the material passage space of the excavator includes a multi-stage rotary loading linkage mechanism. This mechanism comprises a material transfer machine and a rotary connecting primary and secondary transport units. The material transfer machine includes a primary transport machine and a secondary transport machine. The primary transport machine is supported by the excavator frame, the ground, or rails. Its lower part is directly connected to the ground, or it may have ground-mounted wheels. The secondary transport machine is connected to the primary transport machine via the rotary connecting primary and secondary transport units. The material transfer machine can be a belt-type transfer machine, a scraper-type transfer machine, an armored belt transfer machine, a rubber chain belt transfer machine, or a blind-hole chain belt. This is an internal gear transfer conveyor. The unloading end of a primary transfer carrier is movably connected to a subsequent receiving facility for material transfer. A secondary transfer carrier is supported by the ground or by rails. When supported by the ground, the lower part of the secondary transfer carrier is directly connected to the ground or has ground-mounted wheels. When supported by rails, the lower part of the secondary transfer carrier has rail wheels. A rotary connection structure connects the secondary transfer carrier to the primary transfer carrier. The secondary transfer carrier includes two conveying chutes. One end of the primary transfer carrier supports one end of the secondary transfer carrier via the rotary connection structure. The other end of the secondary transfer carrier is supported by ground-mounted wheels or rail wheels. When the primary transfer carrier... When the carrier lifts or lowers, the tail of the second carrier is lifted or lowered by the first carrier. The ground-mounted wheels or track wheels include axles. The second carrier rotates around the axles of the ground-mounted wheels or track wheels. Alternatively, a second material guide chute connecting the second carrier to the ground-mounted wheels or track wheels is provided. This second material guide chute connecting the second carrier to the ground-mounted wheels or track wheels has a rotating structure. When the first carrier lifts or lowers, the second material guide chute rotates around this rotating structure, preventing the second carrier from creating lifting resistance on the first carrier. A second material guide chute is located on the upper part of the ground-mounted wheels or track wheels. The support structure directly supports the secondary material guide chute, or a rotating disk for the secondary material guide chute is provided between the support structure and the secondary material guide chute. The rotating disk supports the secondary material guide chute's left and right rotation through rolling friction as it swings left and right. While the excavator is working, the space between the secondary transport track wheel and the lower part of the primary transport vehicle is used to lay the track. Before the excavator moves forward, the track near the track wheel is laid, allowing the excavator to drive the secondary transport vehicle along the track. This allows the excavator to work while the transport department transfers materials and lays the track simultaneously, improving the time utilization rate of track laying for excavator transport.

[0042] A first transport machine includes a first transport section and supports a first transport trough; a second transport machine includes a second transport section and supports a second transport trough. The rotating connection between the first and second transport sections includes a first transport component and a second transport component. The first transport component is mounted on the first transport section or on the supports of the first transport trough; the second transport component is mounted on the second transport section or on the supports of the second transport trough. The supports of the first transport trough include a tensioning structure located at the unloading end of the first transport section. The tensioning structure includes a left tensioning guide plate, a right tensioning guide plate, a left tensioning track, a right tensioning track, and a tensioner. The left tensioning track supports the left tensioning guide plate, and the right tensioning track supports the right tensioning guide plate. The left and right tensioning guide plates cooperate to support the receiving transport belt. The tensioner pulls the left and right tensioning guide plates along the left and right tensioning tracks to tension the first conveying section. The connecting component includes a connecting tensioning guide plate, one end of which is connected to the left tensioning guide plate, and the other end to the right tensioning guide plate. The lower part of the connecting tensioning guide plate is provided with a connecting rotating lug or a connecting lug through a shaft. When using the connecting rotating lug... When the connecting conveyor belt is used, the second conveyor trough is equipped with a connecting conveyor ear through shaft that mates with the connecting conveyor ear rotating through shaft. Alternatively, when the connecting conveyor ear through shaft is used, the second conveyor trough is equipped with a connecting conveyor ear rotating through shaft that mates with the connecting conveyor ear through shaft. The second conveyor trough includes a fixed-length conveyor belt type guide trough or a tensioned conveyor belt type guide trough. When the fixed-length conveyor belt type guide trough is used, the connecting conveyor ear through shaft is directly supported by the fixed-length conveyor belt type guide trough. Or, when the tensioned conveyor belt type guide trough is used... In the case of a tensioned conveyor belt type material guide chute, the tensioned conveyor belt type material guide chute includes a secondary tensioning structure. The secondary tensioning structure is located at the unloading end or receiving end of the second conveyor section. The secondary tensioning structure includes a secondary left tensioning guide plate, a secondary right tensioning guide plate, a secondary left tensioning track, a secondary right tensioning track, and a secondary tensioner. The driven component of the buckle plate includes a driven shaft, which is supported at both ends by the secondary left tensioning guide plate and the secondary right tensioning guide plate. The driven shaft supports the receiving conveyor belt. The second conveyor belt's left tensioning track supports the second conveyor belt's left tensioning guide plate, and the second conveyor belt's right tensioning track supports the second conveyor belt's right tensioning guide plate. The second conveyor belt's left and right tensioning guide plates support one end of the receiving conveyor belt. The second conveyor belt's tensioner pulls the left and right tensioning guide plates, which move back and forth along the left and right tensioning tracks via a supported driven shaft. The tensioner also pulls the left and right tensioning guide plates, causing the driven shaft to move back and forth, thus tensioning the second conveyor section. When the second conveyor belt's tensioning structure is located at the receiving end, the connecting component includes a connecting second conveyor belt tensioning guide plate or a connecting second conveyor belt driven shaft. One end of the connecting second conveyor belt tensioning guide plate is connected to the left tensioning guide plate, and the other end is connected to the right tensioning guide plate. The upper part of the connecting second conveyor belt tensioning guide plate is provided with a connecting first conveyor belt hanging ear or a connecting first conveyor belt rotating ear.The first and second rotating carriers are connected by a shaft that passes through the first rotating carrier and the second rotating carrier, or the first rotating carrier and the second rotating carrier are connected by a shaft that passes through the shaft of the first rotating carrier and the second rotating carrier. The protruding end of the shaft of the first rotating carrier is provided with a shaft-stopping device to prevent the shaft of the first rotating carrier from coming out of the ear hole of the second rotating carrier. The shaft-stopping device includes a cotter pin, a shaft, a nut, a stop, or a pin. The second-stage conveyor driven shaft assembly includes a left-side driven shaft assembly, a right-side driven shaft assembly, and a rotating connecting beam. The left-side driven shaft assembly is rotatably connected to the left side of the driven shaft, and the right-side driven shaft assembly is rotatably connected to the right side of the driven shaft. The rotating connecting beam is located above the left-side and right-side driven shaft assemblies. The upper part of the rotating connecting beam is provided with a connecting lug or a connecting rotating lug, which is rotatably connected to the first conveying section. The second-stage conveyor driven shaft assembly enables the first and second conveying sections to rotate rotatably, ensuring that the first and second conveying sections do not obstruct each other during lifting and lowering.

[0043] The anti-jamming conveyor device for the material passage space of an excavator includes a low-height, impact-resistant conveyor. The low-height, impact-resistant conveyor includes a support guide trough, a three-arc anti-detachment and leak-proof component, a double-hole buckle component, and a meshing shaft plate belt component. The three-arc anti-detachment and leak-proof component or the double-hole buckle component has a shaft plate belt meshing mechanism that meshes with the meshing shaft plate belt component. The shaft plate belt meshing mechanism includes blind holes with internal buckling teeth on the shaft plate or protruding teeth on the shaft plate. The three-arc anti-detachment and leak-proof component includes a three-arc sealed material carrier and a belt shaft assembly. The double-hole buckle component has a front buckle hole and a rear buckle hole, which are respectively buckled onto the front and rear belt shaft assemblies. Multiple double-hole buckle components are staggered and connected to multiple three-arc anti-detachment and leak-proof components, forming a buckling conveyor belt. The support guide trough includes a left support guide plate and a right support guide plate. The left and right guide plates are connected. The height of the support guide plates is either flush with or higher than the surface of the toothed conveyor belt. When the height of the support guide plates is flush with the surface of the toothed conveyor belt, the bottom of the low-height, impact-resistant conveyor is set close to the ground, allowing materials on both sides to be smoothly guided onto the surface of the toothed conveyor belt. When the height of the support guide plates is higher than the surface of the toothed conveyor belt, the left and right support guide plates form a guide trough with the surface of the toothed conveyor belt. When the support guide plates are higher than the surface of the toothed conveyor belt, the support guide plates include a lower support plate and an upper guide plate. The lower support plate and the upper guide plate are connected integrally or separately. When the lower support plate and the upper guide plate are connected separately, during material loading, the following steps are taken: The lower support plate of the belt supports the toothed conveyor belt. When loading from the left and right sides of the low-height, impact-resistant conveyor is not required, a guide plate on the upper part of the belt surface is installed. The guide plate on the upper part of the belt surface carries material over a long distance. The left and right guide plates are connected to the left and right support guide plates. The left and right support guide plates are equipped with a support chain structure, which includes support roller shafts and / or support drive shafts. The support chain structure and the left and right guide plates are set inside the toothed conveyor belt. The support drive shaft lifts and drives the toothed conveyor belt to roll and rub against the material. The three-arc anti-detachment and leakage prevention component includes a flat three-arc anti-detachment and leakage prevention component or a side baffle three-arc anti-detachment and leakage prevention component, or a double-hole buckle component including a flat belt double-hole buckle component or a baffle double-hole buckle component. When using a side baffle three-arc... When using a three-arc anti-loosening and leak-proof component, the side baffle has a material-carrying side baffle. This material-carrying side baffle is positioned on one or both sides of the three-arc anti-loosening and leak-proof component to prevent material leakage along the side of the conveyor belt. The material-carrying side baffle and the three-arc anti-loosening and leak-proof component rotate around the roller simultaneously, preventing sliding friction with the material and effectively blocking it. When using a double-hole baffle with a retaining shaft, the double-hole baffle with a retaining shaft includes a front double-hole baffle with a retaining shaft and a rear double-hole baffle with a retaining arc. These two components are designed with front and rear retaining arcs to form a retaining arc sealing surface. The front and rear double-hole baffles have the same thickness. When engaged, they form a retaining plate with flat sides, preventing material leakage and scraping of the conveyor belt.It prevents sliding friction with the material and thus blocks the material.

[0044] This includes a low-rail conveyor for excavators, comprising a low-rail transport trough, a buckle axle plate belt, a support roller, and a drive axle plate assembly. The low-rail transport trough includes a left rail component, a right rail component, a connecting left and right rail components, a support buckle plate belt component, and a connecting front and rear rail component. The left and right rail components are respectively located on both sides of the connecting left and right rail components and are fixedly connected to them. The left and right rail components have support surfaces for sliding shoes, support surfaces for rail wheels, or buckle gears. The support buckle plate belt component is located on the left and right rail components and supports the support roller. The conveyor trough is equipped with a roller conveyor belt. A snap-on axle plate surrounds the roller conveyor belt, which is driven by a drive axle plate to roll and frictionally convey materials. Front and rear track components are located at the front and / or rear of the low-rail conveyor trough. These track components include grooved connections, insert-type connections, screw plate connections, transverse pin connections, figure-eight snaps, or vertical snap-on pins. When using vertical snap-on pins, the low-rail conveyor trough includes a front boss arc, and the trough side rails include a front trough side rail and a rear trough side rail. The front trough side rail includes a front snap-on side rail boss, and the rear trough side rail includes a rear snap-on side rail boss. The front and rear clasp side bosses are equipped with vertical pin holes for the trough. The trough side bosses include vertical pins. The front and rear clasp side bosses are inserted into each other, aligning the vertical pin holes of the front and rear clasp side bosses vertically. The vertical pins are inserted into the vertical pin holes, connecting the front and rear trough side bosses to form a rotating low-rail transport trough around the vertical pin. The end of the front and rear clasp side bosses is provided with a front boss arc and / or the end of the rear clasp side boss is provided with a rear boss arc. When the low-rail transport trough is pushed close to the coal wall to be mined, the front and rear clasp side bosses rotate around the vertical pin. The front and rear bosses are rotated and bent so that their outer arc surfaces do not exceed the side surface of the trough, ensuring that the conveyor belt does not scrape the front and rear side bosses. The front trough side includes a bottom plane concave and / or a bottom arc concave. When the bottom arc concave is used, the corresponding rear trough side boss includes a top arc convex. The bottom arc concave and the top arc convex are engaged to form a vertical arc surface fastening platform for the trough. When the trough side rises as one end of the ground is excavated, the bottom arc concave of the front trough side rotates around the top arc convex fastening arc and rises upward. When the ground tilts downward, the bottom arc concave of the front trough side rotates around the top arc convex fastening arc and bends downward.The front and rear track components connect multiple low-rail transport troughs, extending or shortening the transport length. The clamping shaft plate includes a three-arc anti-detachment and leak-proof component, a double-hole clamping shaft component, and an engaging shaft plate component. The three-arc anti-detachment and leak-proof component or the double-hole clamping shaft component has a shaft plate engagement mechanism that meshes with the engaging shaft plate component. The shaft plate engagement mechanism includes a blind hole with internal clamping teeth on the shaft plate or a convex tooth on the shaft plate. The three-arc anti-detachment and leak-proof component includes a three-arc sealing material carrier and a belt shaft assembly. The double-hole clamping shaft component has a front clamping shaft hole and a rear clamping shaft hole. The front clamping shaft hole and the rear clamping shaft hole are respectively rotated and fastened to the belt shafts arranged at the front and rear. Multiple double-hole clamping shaft components are staggered and fastened to multiple three-arc anti-detachment and leak-proof components, connecting the front... The three-arc anti-detachment and leak-blocking components are connected to form a toothed conveyor belt. The three-arc anti-detachment and leak-blocking components include two-end shaft-type material carriers or one-end detachable material carriers. One end of the one-end detachable material carrier has a belt shaft at one end and a detachable belt pin hole or a detachable belt screw hole at the other end. The one-end detachable material carrier includes a belt-passing pin or a belt-passing screw. The double-hole buckle component includes a Z-shaped buckle blind hole plate or an 8-shaped buckle plate. When using the Z-shaped buckle blind hole plate, the Z-shaped buckle blind hole plate includes a front buckle mechanism and a rear buckle mechanism. The front buckle mechanism is in contact with the three-arc sealing material carrier, while the rear buckle mechanism is not in contact with the three-arc sealing material carrier. The rear buckle plate hole mechanism prevents the buckle plate of the previous Z-shaped buckle blind hole plate from falling off. The double-hole buckle plate includes a swivel fastener, which includes a through-and-remove belt pin hole or a through-and-remove belt screw hole. When the Z-shaped buckle blind hole plate is fastened to the three-arc anti-detachment and leak-proof component to form a ring, the through-and-remove belt pin hole is aligned with the disassembly belt pin hole, and the through-belt pin is set in the two holes to fix the through-belt pin on the three-arc sealing material body. This prevents the Z-shaped buckle blind hole plate from falling off the buckle conveyor belt. Alternatively, the through-and-remove belt screw hole is aligned with the disassembly belt screw hole, and the through-belt screw is set in the two holes to prevent the Z-shaped fastener from falling off the buckle conveyor belt. The one-end detachable material component, in conjunction with the Z-shaped buckle blind hole plate, facilitates the quick assembly and disassembly of the buckle conveyor belt to a suitable length within the extended or shortened low rail transport trough, ensuring that the buckle conveyor belt is properly tensioned and transported safely.

[0045] The front and rear track components include groove-type front and rear track components. The low-rail transport trough includes a front low-rail transport trough and a rear low-rail transport trough. When using the groove-type front and rear track components, the groove-type front and rear track components include threaded rods or pins that connect the left and right rail concave and convex parts. If the front left track component has a front rail groove, the rear left track component has a corresponding rear rail protrusion. The rear rail protrusion is inserted into the front rail groove. The threaded rods or pins that connect the left and right rail concave and convex parts connect the front rail groove and the rear rail protrusion, so that the front low-rail transport trough and the rear low-rail transport trough are fixedly or rotatably connected. When the front and rear low-rail transport troughs are fixedly connected, the front rail groove and the rear rail protrusion are connected by a polygonal fastening. When the front and rear low-rail transport troughs are rotatably connected, the front rail groove and the rear rail protrusion are connected by an arc surface. The center of the pin shaft connecting the left and right rail concave and convex parts is the same as the center of the front rail groove and the arc surface of the rear rail protrusion. When the low-rail transport machine used by the mining machine needs to bend up and down with the terrain, the low-rail transport trough rotates around the pin shaft connecting the left and right rail concave and convex parts to form a convex or concave track. The blind hole shaft plate inner toothed belt guide groove, bracket guide groove, or low rail transport groove includes a pressure plate pulley. The pressure plate pulley is set on one or both sides of the upper part of the blind hole shaft plate inner toothed belt guide groove, bracket guide groove, or low rail transport groove. When the blind hole shaft plate inner toothed belt guide groove, bracket guide groove, or low rail transport groove is connected and bent downward to form a concave surface on the transport belt surface, the pressure plate pulley rolls and rubs to prevent the toothed transport belt from detaching upward from the blind hole shaft plate inner toothed belt guide groove, bracket guide groove, or low rail transport groove.

[0046] The low-height, impact-resistant transport machine includes front and rear support guide plates that fasten together. These plates can be either groove-type or plate-type. When using groove-type plates, they include threaded rods or pins connecting left and right protruding parts. If the front support guide plate has a front support groove, the rear support guide plate has a corresponding rear support protrusion. The rear support protrusion inserts into the front support groove, and the threaded rods or pins connecting the front and rear support grooves connect the rear support protrusion, allowing the front and rear support guide channels to be fixedly or rotatably connected. When the current support guide trough and the rear support guide trough are fixedly connected, the front support groove and the rear support protrusion are connected by a polygonal fastening. Or when the current support guide trough and the rear support guide trough are rotatably connected, the front rail groove and the rear rail protrusion are connected by an arc surface. The center of the pin shaft connecting the left and right concave and convex parts is the same as the center of the front support groove and the arc surface of the rear support protrusion. When the low-height anti-impact conveyor needs to bend up and down with the terrain, the support guide trough rotates around the pin shaft connecting the left and right concave and convex parts to form a convex low-height anti-impact conveyor or a concave low-height anti-impact conveyor.

[0047] The blind hole shaft plate inner toothed belt guide trough, bracket guide trough, or low rail transport trough includes a detection and cleaning slurry inlet. This inlet is located on the side of the blind hole shaft plate inner toothed belt guide trough, bracket guide trough, or low rail transport trough, offset from the supporting roller shaft. The bottom of the detection and cleaning slurry inlet is lower than the lower surface of the toothed conveyor belt. The slurry inlet allows mud and water that has seeped into the lower part of the toothed conveyor belt to drain out of the conveyor belt. The detection and cleaning slurry inlet is equipped with an inner toothed belt monitor. The monitor detects the operating status of the toothed conveyor belt and alarms if a potential fault is detected. It also prompts for repair and troubleshooting before a fault occurs. The bottom side of the blind hole shaft plate inner toothed belt guide trough, bracket guide trough, or low rail transport trough includes a mud and water receiving trough. The system collects the outflowing mud and water at the lower part of the mud and water inlet. It includes a blind hole shaft plate inner toothed belt guide trough, support guide trough, or low-rail transport trough. The scraper includes a surface scraper and / or an inner ring scraper. The surface scraper is located at the unloading end of the blind hole shaft plate inner toothed belt guide trough, support guide trough, or low-rail transport trough, cleaning the upper surface of the toothed conveyor belt to prevent the return material from sticking. The inner ring scraper is located on the upper surface of the lower belt in the blind hole shaft plate inner toothed belt guide trough, support guide trough, or low-rail transport trough, and is positioned close to the mud and water inlet so that the mud and water cleaned by the inner ring scraper flows from the mud and water inlet to the mud and water collection trough, promptly cleaning and collecting the mud and water from the inner ring of the chain belt.

[0048] The aforementioned anti-jamming chain conveyor for the excavator's material passage space includes a low-height anti-jamming chain conveyor for the excavator. This low-height anti-jamming chain conveyor includes a three-arc anti-detachment and leakage-blocking component, a double-hole buckling component, and a shaft gear roller. The three-arc anti-detachment and leakage-blocking component includes a three-arc sealed material carrier and a belt shaft. The double-hole buckling component includes a Z-shaped buckling connecting plate or a double-hole plate arc-surface sealing material stopper. The Z-shaped buckling connecting plate or the double-hole plate arc-surface sealing material stopper has a front buckling shaft hole and a rear buckling shaft hole, which are respectively buckled onto the front and rear belt shafts. The belt shaft passes through the shaft gear roller. The double-hole buckling component is positioned between the shaft gear roller and the three-arc sealed material carrier, or the shaft gear roller is in contact with the three-arc sealed material carrier. Double-hole buckling components are also positioned on the outer side of the shaft gear roller, with multiple double-hole buckling components staggered. Multiple three-arc anti-detachment and leak-proof components are connected together. The front three-arc anti-detachment and leak-proof components are connected to the rear three-arc anti-detachment and leak-proof components. The arc surfaces of the front three-arc sealing material carrier and the rear three-arc sealing material carrier are separately fastened and sealed. The three-arc anti-detachment and leak-proof components include single-shaft or double-shaft material carrier components. The fastening roller gear directly drives the belt shaft or the belt shaft is equipped with a fastening roller gear. The shaft gear roller drives the rolling friction conveyor of materials. The three-arc anti-detachment and leak-proof components include belt shaft components. The belt shaft components include three-arc sealing material carriers and belt shafts. The three-arc sealing material carriers include solid or hollow three-arc sealing material carriers. The belt shaft and the three-arc sealing material carriers are separately connected or integrated. The front shaft hole and the rear shaft hole are fastened to the front belt shaft and the rear belt shaft respectively, so that the belt shaft components are fastened to form a conveyor belt.

[0049] The aforementioned anti-jamming chain conveyor for the excavator's material passage space includes a low-height anti-jamming chain roller conveyor for the excavator. This conveyor comprises a three-arc anti-detachment and leakage-blocking component, a double-hole buckling component, a roller threading onto the belt axle, and a gear drive mechanism. The roller threading onto the belt axle is either separate from or integrated with the shaft gear roller. The three-arc anti-detachment and leakage-blocking component includes a three-arc sealed material carrier and a belt axle. The double-hole buckling component includes a Z-shaped buckling connecting plate or a double-hole plate arc-surface sealing material stopper. The Z-shaped buckling connecting plate or the double-hole plate arc-surface sealing material stopper has a front buckling hole and a rear buckling hole, which are respectively buckled onto the front and rear belt axles. The roller threading onto the belt axle passes through the belt axle. The double-hole buckling component is positioned between the roller threading onto the belt axle and the three-arc sealed material carrier, or between the roller threading onto the belt axle. The rollers are in contact with the three-arc sealed material carrier. Double-hole buckle fittings are installed on the outer side of the rollers with a shaft. Multiple double-hole buckle fittings are staggered and connected to multiple three-arc anti-detachment and leak-proof components. The front three-arc anti-detachment and leak-proof components are connected to the rear three-arc anti-detachment and leak-proof components. The arc surfaces of the front and rear three-arc sealed material carriers are separately fastened and sealed. The three-arc anti-detachment and leak-proof components include a mechanism to prevent the connecting plate from falling off or a mechanism to prevent the rollers with a shaft from falling off. When the mechanism to prevent the connecting plate from falling off is used, it includes a mechanism to prevent the Z-shaped buckle from falling off or a mechanism to prevent the double-hole connecting plate from falling off. The Z-shaped buckle from falling off includes a staggered Z-shaped fastener and a screw shaft connecting the material carrier anti-detachment structure. The staggered Z-shaped fastener is staggered and fastened through the Z-shaped buckle connecting plate. The Z-shaped buckle connecting plate includes an outer buckle... The shaft hole component and the inner buckle shaft hole component, and the outer buckle shaft hole component and the inner buckle shaft hole component are staggered to form a Z-shaped buckle connecting plate component. The outer buckle shaft hole component of the next Z-shaped buckle connecting plate component is fastened to the outer side of the inner buckle shaft hole component of the previous Z-shaped buckle connecting plate component to prevent the previous Z-shaped buckle connecting plate component from falling off. The screw shaft connecting material body anti-detachment structure includes a Z-shaped buckle shaft screw, and a corresponding buckle shaft screw threaded hole is provided on the three-arc sealed material body. The outer buckle shaft hole component is provided with a buckle screw shaft hole. The Z-shaped buckle shaft screw passes through the outer buckle shaft hole component and the inner buckle shaft hole component and engages with the buckle shaft screw threaded hole to prevent the Z-shaped buckle connecting plate component from falling off the three-arc sealed material body. When the anti-penetration group shaft roller detachment mechanism is used, the anti-penetration group shaft roller detachment mechanism includes an anti-roller detachment stop pin or a stop. The roller detachment Z-shaped buckle, anti-roller detachment nut, or anti-roller detachment baffle can be used. When using an anti-roller detachment stop pin, the anti-roller detachment stop pin is located at the outer end of the belt axle to prevent the roller passing through the belt axle from detaching. When using an anti-roller detachment Z-shaped buckle, the anti-roller detachment Z-shaped buckle is located outside the roller passing through the belt axle and at the outer end of the belt axle. The anti-roller detachment Z-shaped buckle includes an anti-Z-shaped buckle detachment pin, and the corresponding anti-roller detachment Z-shaped buckle and the outer end of the belt axle have anti-Z-shaped buckle detachment pin holes. The anti-Z-shaped buckle detachment pin passes through the anti-Z-shaped buckle detachment pin holes to prevent the anti-roller detachment Z-shaped buckle from detaching. When using an anti-roller detachment nut, the end of the belt axle has a through-shaft thread that mates with the anti-roller detachment nut. The anti-roller detachment nut mates with the through-shaft thread to prevent the roller passing through the belt axle from detaching.When using a roller detachment baffle, the roller detachment baffle includes a roller detachment baffle pin. Correspondingly, the roller detachment baffle and the belt axle are provided with baffle pin holes. The roller passing through the belt axle is positioned inside the roller detachment baffle, allowing the roller detachment baffle pin to insert into the baffle pin hole to prevent the roller from detaching. The gear drive mechanism includes a three-arc sealed material carrier internal drive mechanism, a double-hole snap-shaft internal drive mechanism, or a drive belt axle mechanism. When using a three-arc sealed material carrier internal drive mechanism, the three-arc sealed material carrier is provided with a shaft plate inner snap-tooth blind hole or a shaft plate with protruding teeth. The three-arc sealed material carrier internal drive mechanism includes meshing shaft plate inner snap-tooth blind holes or meshing shaft plate with protruding teeth. The three-arc sealed material carrier body uses a gear inside the shaft plate with a blind hole for engaging the gear teeth to transport materials. When using a double-hole shaft-connecting mechanism, the double-hole shaft-connecting component has a blind hole groove for engaging the gear teeth on the connecting plate or a convex tooth on the connecting plate. The double-hole shaft-connecting mechanism includes an internal gear on the connecting plate that engages with the blind hole groove or the convex tooth of the connecting plate. The internal gear drives the blind hole groove to transport materials, or the internal gear drives the convex tooth to transport materials. When using a drive group with a belt shaft mechanism, there is a gap between the front and rear belt shafts for inserting drive wheel teeth. The drive group with a belt shaft mechanism drives the belt shaft to make the three-arc sealed material carrier body roll and rub to transport materials.

[0050] The aforementioned meshing single-shaft plate belt component includes a drive shaft and a drive shaft plate gear. The drive shaft and the drive shaft plate gear are either separately engaged or integrated. One or more drive shaft plate gears are mounted on the drive shaft, located in the middle of the drive shaft, on both sides of the middle of the drive shaft, or at both ends of the drive shaft. Correspondingly, the three-arc anti-detachment and leakage-blocking component has a blind hole with internal teeth on the shaft plate or a shaft plate with protruding teeth that meshes with the three-arc anti-detachment and leakage-blocking component. The drive shaft plate gear includes a toothed grooved gear or a through gear. The toothed grooved gear has an inter-tooth discharge groove and spaced drive teeth. The inter-tooth discharge trough is positioned between two adjacent inter-tooth drive teeth, enabling the gear to discharge material. Multiple inter-tooth drive teeth and inter-tooth discharge troughs are installed on a single drive shaft plate gear, allowing multiple transversely arranged inter-tooth drive teeth to work synchronously. This avoids misalignment when multiple drive shaft plate gears are separately positioned and inserted into the blind hole of the inner tooth of the shaft plate when driving the same three-arc anti-detachment and leakage-preventing component, thus preventing damage to the drive shaft plate gear that is inserted into the blind hole first due to independent force. This also facilitates the discharge of material from the blind hole when the inter-tooth drive teeth are inserted into the blind hole of the inner tooth of the shaft plate. Or, to remove blockages and prevent blockages from obstructing the engagement of the drive shaft gear with the blind hole of the inner gear on the shaft plate, drive shaft guide wheels are provided at both ends of the drive shaft. The drive shaft guide wheels are located outside the drive shaft gear. The drive shaft guide wheels include a left drive shaft guide wheel and / or a right drive shaft guide wheel. The left drive shaft guide wheel is located at the left end of the drive shaft, and the right drive shaft guide wheel is located at the right end of the drive shaft. The drive shaft guide wheel includes a guide wheel through-shaft positioning hole and a belt deviation baffle. The guide wheel through-shaft positioning hole is located in the middle of the belt deviation baffle. The positioning hole component and the belt deviation baffle are either separately connected or integrated. The drive shaft passes through the guide wheel through the positioning hole component. A positioning guide wheel component is provided between the drive shaft and the drive shaft guide wheel. The positioning guide wheel component is either separately attached to the drive shaft guide wheel or integrated with it. The positioning guide wheel component prevents the drive shaft guide wheel from rotating relative to the drive shaft. The drive shaft drives the drive shaft guide wheel to rotate. The left guide wheel of the drive shaft cooperates with the right guide wheel of the drive shaft to limit the conveyor belt to the position where the drive shaft plate gear can mesh with the three-arc anti-detachment and leakage prevention component under the rolling friction with the drive shaft guide wheel.

[0051] The aforementioned three-arc anti-detachment and leakage-blocking component includes an arc-shaped three-arc anti-detachment and leakage-blocking component. The center of the arc-shaped surface of the arc-shaped three-arc anti-detachment and leakage-blocking component coincides with the center of the drive shaft. When the arc-shaped three-arc anti-detachment and leakage-blocking component passes through the drive shaft, the center of the outer circle formed by multiple arc-shaped three-arc anti-detachment and leakage-blocking components engaging with the drive shaft plate gear coincides with the center of the drive shaft plate gear. This allows the scraper on the surface of the arc-shaped three-arc anti-detachment and leakage-blocking component to stably adhere to the arc-shaped three-arc anti-detachment and leakage-blocking component, remove the material on the arc-shaped three-arc anti-detachment and leakage-blocking component, and prevent the three-arc anti-detachment and leakage-blocking component from carrying back material during operation.

[0052] The aforementioned conveyor belt anti-slip plate includes a flat anti-slip plate, a side baffle anti-slip plate, or a wheel groove anti-slip plate. When using a side baffle anti-slip plate, it includes a left anti-roller anti-slip baffle and / or a right anti-roller anti-slip baffle. The side baffle also includes an upper anti-roller pressure plate. The left and / or right anti-roller anti-slip baffles are located below the upper anti-roller pressure plate. The upper anti-roller pressure plate and the left anti-roller anti-slip baffle are either separately connected or integrated. The upper anti-roller pressure plate and the right anti-roller anti-slip baffle are either separately connected or integrated. The left conveyor trough side frame is equipped with a left anti-roller anti-slip baffle, and the right conveyor trough side frame is equipped with a right anti-roller anti-slip baffle. The left and right anti-slip baffles cooperate to restrict the left and right movement of the belt axle meshing toothed belt. The aforementioned low-height anti-jamming chain conveyor for mining machines includes a roller storage space. The side support frame of the conveyor body is equipped with idler rollers at intervals, forming a belt storage space between the idler rollers. When the belt surface of the toothed belt of the belt assembly shaft runs for a long time and the belt surface stretches, the belt storage space of the idler rollers causes the belt surface of the toothed belt of the belt assembly shaft to be concave. The roller through the belt shaft of the toothed belt of the belt assembly shaft prevents the belt surface of the toothed belt of the belt assembly shaft from moving up and down. The left guide wheel and the right guide wheel of the drive shaft prevent the toothed belt of the belt assembly shaft from moving left and right. This eliminates the need for the complex structure of tensioners at the head and tail of the machine, and allows the gear meshing of the drive shaft plate gear and the three-arc anti-disengagement and leakage prevention component to drive the toothed belt of the belt assembly shaft to run smoothly.

[0053] The anti-jamming chain conveyor device for the material passage space of the excavator includes an omnidirectional rolling friction belt conveyor. The omnidirectional rolling friction belt conveyor includes side guide wheels of the guide trough, a conveyor belt, and a guide trough. The side guide wheels of the guide trough include either an inner ring rotating guide wheel or an outer ring rotating guide wheel. A guide trough fixing guide wheel mechanism is provided on the guide trough. The guide trough fixing guide wheel mechanism includes upper and lower fixing guide wheel mechanisms and / or a guide wheel mechanism fixed in the trough sill. When using the upper and lower fixing guide wheel mechanism, it includes an upper fixing guide wheel mechanism and / or a lower fixing guide wheel mechanism. The inner ring rotating guide wheel includes a supporting guide wheel bearing, a guide wheel shaft, and a guide wheel. The guide wheel bearing supports the guide wheel shaft, and the guide wheel shaft supports the rotation of the guide wheel. The supporting guide wheel bearing includes an upper guide wheel bearing and / or a lower guide wheel bearing. The guide wheel shaft includes an upper guide wheel shaft and / or a lower guide wheel shaft. The guide wheel includes an upper guide wheel and / or a lower guide wheel. The upper guide wheel bearing supports the upper guide wheel shaft, and the upper guide wheel shaft supports the upper guide wheel. The upper guide wheel bearing, upper guide wheel shaft, and upper guide wheel constitute the upper guide wheel assembly. The lower guide wheel bearing supports the lower guide wheel shaft, and the lower guide wheel shaft supports the lower guide wheel. The lower guide wheel assembly consists of a bearing, a lower guide wheel shaft, and a lower guide wheel. The upper and lower guide wheel assemblies are fixed in conjunction with the upper and lower guide wheel assemblies in the guide trough. The upper guide wheel assembly is mounted on the upper guide wheel assembly, and the lower guide wheel assembly is mounted on the lower guide wheel assembly. The upper guide wheel assembly provides rolling friction guidance for the upper belt during forward transport, and the lower guide wheel assembly provides rolling friction guidance for the lower belt during reverse transport. The upper and lower guide wheel assemblies work together to provide rolling friction guidance for the upper and lower belt bodies of the conveyor belt. When the guide wheel assembly is fixed in the trough, the guide trough includes the left trough assembly. And / or the right slot, a guide wheel fixing mechanism is set in the middle of the left slot and / or the right slot. The guide wheel fixing mechanism in the slot has upper and lower guide wheel shaft holes and upper and lower guide wheel shafts. The bearing outer ring rotating guide wheel includes an upper bearing outer ring rotating guide wheel and / or a lower bearing outer ring rotating guide wheel. The upper bearing outer ring rotating guide wheel includes an upper bearing sliding member, an upper guide wheel bearing, and an upper bearing upward movement member. The lower bearing outer ring rotating guide wheel includes a lower bearing upward movement member, a lower guide wheel bearing, and a lower bearing sliding member. The upper and lower guide wheel shafts pass through the upper and lower guide wheel shaft holes and protrude at both ends. The lower part of the upper and lower guide wheel shafts passes through... The lower guide wheel bearing, the upper anti-rolling component, and the lower guide wheel bearing lower sliding component are connected. The upper anti-rolling component and the lower guide wheel bearing lower sliding component cooperate with the lower end face of the upper and lower guide wheel shaft holes to prevent the lower guide wheel bearing from moving up and down. The upper guide wheel shaft is connected to the upper guide wheel bearing lower sliding component, the upper guide wheel bearing, and the upper anti-rolling component. The upper anti-rolling component and the upper anti-rolling component cooperate with the upper end face of the upper and lower guide wheel shaft holes to prevent the upper guide wheel bearing from moving up and down. The upper anti-rolling component and the lower anti-rolling component position the upper and lower guide wheel bearings. The upper and lower guide wheel bearings provide rolling friction guidance for the upper and lower belts of the conveyor belt.

[0054] The upper bearing outer ring rotation guide wheel includes a sliding upper bearing resisting component, an upper guide wheel bearing, an upper guide wheel upper sleeve, an upper guide wheel lower sleeve, and an upper bearing resisting component. The sliding upper bearing resisting component is located at the lower part of the upper guide wheel bearing and is tightly fitted against the inner ring of the upper guide wheel bearing. The lower upper guide wheel sleeve is fitted outside the upper guide wheel bearing and rotates relative to the sliding upper bearing resisting component. The upper upper guide wheel sleeve is fitted onto the outer ring of the upper guide wheel bearing and rotates relative to the upper bearing resisting component. The upper upper guide wheel sleeve and the lower upper guide wheel sleeve are fastened and fixed to form a sleeve-type upper guide wheel. The lower end of the upper bearing resisting component is fitted against the upper part of the inner ring of the upper guide wheel bearing. The lower bearing outer ring rotation guide wheel includes an upper lower bearing resisting component, a lower guide wheel bearing, a lower guide wheel upper sleeve, and a lower bearing resisting component. The guide wheel lower sleeve and the lower bearing sliding member are arranged together. The lower bearing upper sliding member is set close to the inner ring of the lower guide wheel bearing on the upper part of the lower guide wheel bearing. The lower guide wheel upper sleeve is fitted on the outside of the lower guide wheel bearing and rotates relative to the lower bearing upper sliding member. The lower guide wheel lower sleeve is fitted on the outer ring of the lower guide wheel bearing and rotates relative to the lower bearing sliding member. The upper and lower guide wheel upper sleeves are fastened and fixed to form a sleeve-type lower guide wheel. The sleeve-type upper guide wheel and sleeve-type lower guide wheel are respectively set at the upper and lower parts of the upper and lower guide wheel shaft holes. The upper and lower guide wheel shafts pass through the sleeve-type upper guide wheel, the upper and lower guide wheel shaft holes, and the sleeve-type lower guide wheel. The upper bearing sliding member cooperates with the upper bearing sliding member and the upper end face of the upper and lower guide wheel shaft holes to rotate on the upper and lower guide wheels. The upper guide wheel is positioned on the upper part of the axle. The lower bearing sliding part cooperates with the lower bearing upper sliding part and the lower end face of the upper and lower guide wheel shaft holes to position the lower guide wheel on the lower part of the upper and lower guide wheel axle. The lower guide wheel and the upper guide wheel cooperate to guide the rolling friction of the upper and lower belts of the conveyor belt. The upper guide wheel includes an anti-jump belt side-grinding upper guide wheel and / or an anti-fall belt side-grinding lower guide wheel. The anti-jump belt side-grinding upper guide wheel includes an upper wheel side-grinding surface and / or an upper wheel anti-jumping belt surface. The anti-jump belt side-grinding lower guide wheel includes a lower wheel side-grinding surface and / or a lower wheel anti-falling belt surface. The Z-shaped buckle or double-hole plate connecting part includes a buckle guide wheel anti-jumping belt platform. The buckle guide wheel anti-jumping belt platform and the Z-shaped buckle are separately connected or integrated, or buckle the guide wheel. The anti-jump belt platform and the double-hole plate connecting parts are either separately connected or integrated. The anti-jump belt side-grinding upper guide wheel includes an upper guide wheel anti-jump belt side-grinding mechanism. The guide wheel anti-jump belt platform and the upper guide wheel anti-jump belt side-grinding mechanism are misaligned. The upper guide wheel anti-jump belt side-grinding mechanism prevents the buckle guide wheel anti-jump belt platform from moving upward. The buckle guide wheel anti-jump belt platform prevents the upper belt of the conveyor belt from jumping upward. The anti-fall belt side-grinding lower guide wheel includes an anti-fall belt side-grinding mechanism. When the buckle guide wheel anti-jump belt platform runs to the lower part of the conveyor, the anti-fall belt side-grinding mechanism and the buckle guide wheel anti-jump belt platform are misaligned. The anti-fall belt side-grinding mechanism prevents the buckle guide wheel anti-jump belt platform from falling downward and prevents the Z-shaped buckle or double-hole plate connecting parts from sliding and rubbing against the guide chute.The guide wheels on the side of the feed chute position the upper and lower belts of the conveyor belt vertically and horizontally. The conveyor belt, positioned by these guide wheels, maintains a minimum gap with the side rail of the feed chute, preventing material leakage. Alternatively, a leak-proof cover plate can be installed on the side rail of the feed chute. This cover plate includes a leak-proof sealing groove and a sealing element. The sealing element is located within the leak-proof sealing groove and seals the gap between the conveyor belt and the leak-proof cover plate.

[0055] The omnidirectional rolling friction belt conveyor includes side guide wheels of the guide chute, a guide wheel fixing mechanism for the guide chute, and a toothed belt on the shaft plate. The side guide wheels of the guide chute include a supporting guide wheel bearing, a guide wheel shaft, and a guide wheel. The guide wheel bearing supports the guide wheel shaft, and the guide wheel shaft supports the rotation of the guide wheel. The supporting guide wheel bearing includes an upper guide wheel bearing and / or a lower guide wheel bearing. The guide wheel shaft includes an upper guide wheel shaft and / or a lower guide wheel shaft. The guide wheel includes an upper guide wheel and / or a lower guide wheel. The upper guide wheel bearing supports the upper guide wheel shaft, and the upper guide wheel shaft supports the upper guide wheel. The upper guide wheel bearing, upper guide wheel shaft, and upper guide wheel constitute the upper guide wheel mechanism. The lower guide wheel bearing supports the lower guide wheel shaft, and the lower guide wheel shaft supports the lower guide wheel. The lower guide wheel bearing and lower guide wheel... The guide wheel axle and the lower guide wheel form the lower guide wheel device. A guide wheel fixing mechanism is set on the guide trough. The guide wheel fixing mechanism includes the upper and lower guide wheel fixing mechanisms and / or the guide wheel fixing mechanism in the trough. When the upper and lower guide wheel fixing mechanisms are used, the upper and lower guide wheel fixing mechanisms include the upper guide wheel fixing mechanism and / or the lower guide wheel fixing mechanism. The upper guide wheel device is set on the upper guide wheel fixing mechanism, and the lower guide wheel device is set on the lower guide wheel fixing mechanism. The upper guide wheel device provides rolling friction guidance to the upper shaft plate toothed belt, and the lower guide wheel device provides rolling friction guidance to the lower shaft plate toothed belt. The upper guide wheel device and the lower guide wheel device cooperate to provide rolling friction guidance to the upper and lower belt bodies of the shaft plate toothed belt.

[0056] The guide trough includes a left side plate, a right side plate, and a bottom connector. The bottom connector connects the left and right side plates. The bottom connector includes a bottom plate or a bottom connecting strip. The upper guide wheel includes a push-up conveyor belt pulley and / or a belt-blocking abrasive groove upper wall pulley. The lower guide wheel includes a belt-blocking abrasive groove lower wall pulley and / or a belt-blocking abrasive groove lower wall pulley. The push-up conveyor belt pulley and the belt-blocking abrasive groove upper wall pulley rotate independently. The push-up conveyor belt pulley and the belt-blocking abrasive groove upper wall pulley are separate or integrated. The outer diameter of the push-up conveyor belt pulley is larger than the outer diameter of the belt-blocking abrasive groove upper wall pulley. The belt-blocking abrasive groove upper wall pulley and the belt-blocking abrasive groove lower wall pulley prevent the conveyor belt from abrading the side wall of the guide trough. The push-up conveyor belt pulley prevents the conveyor belt from moving upward. The belt-blocking abrasive groove lower wall pulley prevents the lower surface of the conveyor belt from sagging and abrading the bottom connector.

[0057] The omnidirectional rolling friction belt conveyor includes a low-height anti-wear guide wheel assembly. This assembly includes upper and lower guide wheel bearing spacers. The outer rings or inner rings of the upper or lower guide wheel bearings abut against each other to support the rotation of the guide wheel. Alternatively, the upper and lower guide wheel bearing spacers are positioned between the upper and lower guide wheel bearings to prevent interference between the upper and lower guide wheel shafts during reverse rotation. The upper guide wheel shaft includes an upper anti-roll bar and a lower anti-roll bar sleeve, and / or the lower guide wheel shaft includes a lower anti-roll bar and an upper anti-roll bar sleeve. The lower anti-roll bar sleeve is either separately fastened to the upper guide wheel or integrated with it. The upper guide wheel is fixed to the upper part of the upper guide wheel shaft to prevent the conveyor belt from wearing the guide chute. The upper anti-roll bar and the lower anti-roll bar sleeve cooperate with the supporting guide wheel bearings to prevent the upper guide wheel shaft from moving up and down. The upper guide wheel shaft positions the upper guide wheel and rotates under the drive of the conveyor belt. The rotation of the upper guide wheel causes the conveyor belt to roll and rub against the upper guide wheel, avoiding mutual damage from sliding friction between the conveyor belt and the side wall of the guide trough. The all-round rolling friction belt conveyor includes a guide wheel bearing retaining ring. The height of the guide wheel bearing retaining ring prevents the upper guide wheel shaft from being connected to the surrounding structure. The guide trough fixing guide wheel mechanism includes a guide wheel side hole (supplementary figure). The low-height anti-wear guide wheel assembly is directly embedded in the guide wheel side hole. The upper solid of the guide wheel side hole is connected to the upper solid of the guide trough, and the lower solid of the guide wheel side hole is connected to the lower solid of the guide trough or to the bottom connecting part of the guide trough, preventing material from leaking out from the guide wheel side hole. The upper guide wheel and the lower guide wheel protrude from the inner side of the guide trough, and the upper guide wheel and the lower guide wheel guide the conveyor belt to roll.

[0058] The omnidirectional rolling friction belt conveyor includes a mud and water erosion resistant bearing sleeve. This resistant bearing sleeve comprises an upper resistant bearing sleeve and / or a lower resistant bearing sleeve. The upper and / or lower resistant bearing sleeves are either separate units or integrated. An upper guide wheel bearing is installed within the inner hole of the upper resistant bearing sleeve. The upper resistant bearing sleeve is equipped with an upper sealing ring and a lower sealing ring. The upper sealing ring is fitted to the upper guide wheel shaft for sealing and / or to the lower anti-rollover sleeve for sealing. The lower sealing ring is fitted to the upper anti-rollover stop plate of the bearing for sealing. The upper and lower sealing rings prevent mud and water from entering the upper guide wheel bearing. The outer surface of the upper resistant bearing sleeve is fitted to the guide trough wall, and the guide trough wall provides resistance to the resistant bearing sleeve. Positioning; the guide wheel fixing mechanism of the feed chute includes an upper stop and a lower stop of the bearing sleeve. The upper and lower stops of the bearing sleeve engage to prevent the bearing sleeve from shifting up, down, left, or right due to mud and water erosion. The low-height anti-wear guide wheel assembly also includes upper and lower guide wheel bearing sleeves. The upper guide wheel bearing is located inside the upper bearing sleeve, and the lower guide wheel bearing is located inside the lower bearing sleeve. A spacer is placed between the lower and upper guide wheel bearings. The upper and lower bearing sleeves are mated and sealed to prevent mud and water from entering the upper and lower guide wheel bearing sleeves. The upper end face of the upper and lower guide wheel bearing sleeves abuts against the upper stop of the bearing sleeve. The lower end face of the upper and lower guide wheel bearing sleeves abuts against the lower stop of the buckle bearing sleeve, and one side of the outer end of the upper and lower guide wheel bearing sleeves is in contact with the end face of the guide wheel fixing mechanism of the guide trough. The upper and lower stop of the buckle bearing sleeves, together with the sides and rear of the guide wheel fixing mechanism of the guide trough, fix the upper and lower guide wheel bearing sleeves in multiple directions to prevent the upper and lower guide wheel bearings from moving. The upper and lower guide wheel bearings respectively support the upper and lower guide wheel shafts, and their rotation in different directions guides the rolling friction of the upper and lower belts of the conveyor belt. The anti-mud and water erosion bearing sleeve includes an anti-mud and water erosion sleeve rotation mechanism, which includes the arc surface of the buckle groove wall and the plane surface of the buckle groove wall. The corresponding guide trough is equipped with a buckle bearing sleeve. The inner arc and the anti-rotation surface of the bearing sleeve are closely fitted with the inner arc of the bearing sleeve, and the flat surface of the groove wall is closely fitted with the anti-rotation surface of the bearing sleeve, preventing the bearing sleeve from rotating due to mud and water erosion. The upper and lower guide wheel bearing sleeves effectively shorten the distance between the upper and lower guide wheels, making the upper and lower guide wheels a multi-directional rotator. The multi-directional rotator is small in size, and the upper and lower guide wheel shafts are on the same axis. The upper and lower guide wheel bearing sleeves add clamping force to the upper and lower guide wheel bearings, and accurately position the upper and lower conveyor belts by rolling friction. The material guide trough body is preserved to the maximum extent, and the lower sealing ring and lower waterproof sleeve required for the upper and lower guide wheels are eliminated.

[0059] The omnidirectional rolling friction belt conveyor includes a guide wheel slip mechanism, which comprises a guide wheel slip pin, a guide wheel slip plate, a guide wheel slip platform, or a guide wheel slip idler. When using the guide wheel slip idler, support idler components are installed on the upper and lower guide wheel bearing sleeves facing the conveyor belt end faces. The support idler components include a left support idler component and a right support idler component. The guide chute side guide wheels include a left side guide wheel and a right side guide wheel. The upper and lower guide wheel bearing sleeves include a left bearing sleeve and a right bearing sleeve. The left and right support idler components are respectively installed on the left and right bearing sleeves. One end of the guide wheel slip idler is installed on the left support idler component, and the other end is installed on the right support idler component. The guide wheel slip idler is pressed against the left and right bearing sleeves. The guide wheel slip idler cooperates with the upper and lower stop platforms of the bearing sleeves to prevent the left and right bearing sleeves from moving left, right, up, down, back, and forth.

[0060] The aforementioned anti-jamming conveyor device for the material passage space of the excavator includes a conveyor trough, which comprises side frames and a base plate. The side frames include a left and a right side frame. The base plate connects the left and right side frames to form the conveyor belt trough. The side frames include an outer side and an inner side. An anti-move mechanism is provided on the inner side of the conveyor belt, comprising an anti-move plate. The anti-move plate is welded, bolted, or grooved to the side frames. The width of the anti-move plate is greater than that of the connecting side components. The belt axle roller and the gear roller are either separate or integrated. When the belt axle roller and the gear roller are integrated, the belt axle roller... The wheel and shaft gear roller are combined to form a shaft gear roller. The anti-move plate of the conveyor belt covers the double-hole buckle pins and the rollers passing through the shaft on both sides of the three-arc sealed material carrier, or covers the shaft gear roller. The rollers passing through the shaft and the shaft gear roller are set separately or as one piece. When the rollers passing through the shaft and the shaft gear roller are set separately, the rollers passing through the shaft and the shaft gear roller roll and rub against the anti-move plate of the conveyor belt to prevent the gear roller conveyor belt from moving up and down. When the shaft gear roller passes through the drive gear, it rolls and rubs against the shaft to prevent the drive gear from damaging the shaft. When the rollers passing through the shaft and the shaft gear roller are one piece, the rollers passing through the shaft and the shaft gear roller are combined to form a shaft gear roller. The shaft gear roller combines the functions of the rollers passing through the shaft and the shaft gear roller into one, reducing the length of the shaft occupied by the separate setting of the rollers passing through the shaft and the shaft gear roller.

[0061] The omnidirectional rolling friction belt conveyor includes a rolling telescopic drive assembly, a conveyor belt frame, and a conveyor belt. The rolling telescopic drive assembly includes a head telescopic rail, a telescopic guide bracket, a drive gear assembly, a drive power assembly, a telescopic hydraulic cylinder, and a telescopic rolling mechanism. The head telescopic rail supports the telescopic guide bracket, which in turn supports the drive gear assembly. The drive gear assembly is connected to the drive power assembly. The telescopic rolling mechanism includes telescopic rollers and / or telescopic balls. The telescopic rolling mechanism is located on the telescopic guide bracket and / or below the drive power assembly. When the telescopic rolling mechanism is located on the telescopic guide bracket, the telescopic guide bracket includes a telescopic guide plate. One end of the telescopic hydraulic cylinder is mounted on the conveyor belt frame, and the other end is connected to the telescopic guide plate. One end of the guide plate or telescopic cylinder is mounted on the conveyor belt frame, and the other end is connected to the drive power assembly. The telescopic cylinder extends and retracts, causing the rolling telescopic drive assembly to reciprocate. When a telescopic rolling mechanism is installed on the telescopic guide plate and / or the head telescopic track, the telescopic rolling mechanism supports the telescopic guide bracket, drive gear assembly, and drive power assembly in rolling friction extension and retraction to tension the conveyor belt. Alternatively, when the telescopic rolling mechanism is located below the drive power assembly, a telescopic roller or telescopic ball is installed below the drive power assembly, and the telescopic rolling mechanism supports the telescopic guide bracket, drive gear assembly, and drive power assembly in rolling extension and retraction to tension the conveyor belt. The omnidirectional rolling friction belt conveyor or the support power assembly base includes... The conveyor head base plate is equipped with a base plate track that mates with telescopic rollers or telescopic balls, or a support rolling element track that mates with telescopic rollers or telescopic balls is installed on the support power assembly base. When the coal seam is low and the space is small, a drive unit rolling element groove is provided on the drive power assembly or the conveyor head base plate. When a drive unit rolling element groove is provided on the drive power assembly, a corresponding base plate rolling element track is provided on the conveyor head base plate. The telescopic balls or telescopic rollers are placed in the drive unit rolling element groove, with the height of the telescopic balls greater than the drive unit rolling element groove. The telescopic balls are positioned between the drive unit rolling element groove and the base plate rolling element track, and the telescopic balls support the telescopic guide bracket and the drive gear. The assembly and drive power assembly roll and extend. When a ball groove for the push plate is set on the bottom plate of the conveyor belt head, a corresponding ball track for the drive power assembly is set on the drive power assembly. The telescopic balls are set in the ball groove of the push plate, so that the height of the telescopic balls is greater than the ball groove of the push plate. The telescopic balls are set between the ball groove of the push plate and the ball track of the power assembly. The telescopic balls support the telescopic guide bracket, the drive gear assembly, and the drive power assembly to roll and extend to tension the conveyor belt. Alternatively, when using telescopic rollers, the telescopic rollers are set at the bottom of the drive power assembly. The telescopic rollers prevent the bottom of the drive power assembly from sliding and rubbing against the support power assembly seat, so that the drive power assembly rolls and rubs under the support of the telescopic rollers to tension the conveyor belt.

[0062] The omnidirectional rolling friction belt conveyor includes a blind hole cleaning toothed belt groover, which comprises a water jet blind hole cleaning shaft plate device or a spring knife blind hole cleaning toothed belt groover. The water jet blind hole cleaning shaft plate device includes a high-pressure pipe, a high-pressure nozzle, a high-pressure pump, a blind hole cleaning shaft plate control valve, and a head frame. The high-pressure pipe is supported by the head frame and is either separately connected to the high-pressure nozzle or integrated with it. The high-pressure pipe is located on the head frame near the blind hole shaft plate gear or near the blind hole shaft plate roller. The blind hole cleaning shaft plate control valve is located at the water outlet of the high-pressure pump and is connected to the high-pressure pipe. When it is necessary to clean the blind holes of the shaft plate, the high-pressure pump and the blind hole cleaning shaft plate control valve are activated, allowing the water sprayed by the water jet cleaning shaft plate device to clear the blind holes of the shaft plate. The water jet cleaner removes the adhered material from the blind holes of the shaft plate without damaging the internal teeth. The high-pressure nozzles include a blind hole cleaning shaft plate nozzle or a blind hole cleaning shaft plate gear nozzle. The jet from the blind hole cleaning shaft plate nozzle is directed towards the blind holes of the shaft plate, while the jet from the blind hole cleaning shaft plate gear nozzle is directed towards the blind hole shaft plate gear or towards the blind hole shaft plate roller. When using a spring knife blind hole cleaning gear groove cleaner, the spring knife blind hole cleaning gear groove cleaner includes a spring knife holder and a spring knife. The spring knife holder is supported by the machine head frame, and the spring knife is set on the spring knife holder. The spring knife includes a spring knife blade, which is placed against the inner surface of the toothed conveyor belt to remove the material adhering to the inner surface of the toothed conveyor belt.

[0063] The omnidirectional rolling friction belt conveyor includes a belt tensioner, which comprises a belt buckle head shaft hole, a belt buckle tail shaft hole, a belt tensioning screw, and a belt tensioning nut. When the toothed conveyor belt is loose and requires the removal of some three-arc anti-detachment and leak-proof components before tightening, excess double-hole buckle shafts and three-arc anti-detachment and leak-proof components are removed. The belt buckle head shaft hole is inserted into the front buckle shaft hole at one end of the toothed conveyor belt that needs to be tightened, and the belt buckle tail shaft hole is inserted into the rear buckle shaft hole at the other end of the toothed conveyor belt that needs to be tightened. The belt tensioning nut is rotated to bring the two ends of the toothed conveyor belt closer together. A three-arc anti-detachment and leak-proof component is added or a front and rear double-hole buckle shaft is removed, so that the front and rear double-hole buckle shafts are connected with the three-arc anti-detachment and leak-proof components, so that the toothed conveyor belt is in the optimal operating state.

[0064] 31. The anti-jamming chain conveying device for the material passage space of an enhanced mining excavator according to claim 1, characterized in that: the anti-jamming chain conveying device for the material passage space of an enhanced mining excavator includes a spiral walking scraping and cleaning device, a conveyor belt and a conveyor frame; the conveyor belt includes an upper conveyor belt and a lower return belt; the spiral walking scraping and cleaning device includes a scraping-stopping and pushing component rotating structure, an internal thread scraping and cleaning component, a power screw, a drive screw component and a frame groove; the spiral walking scraping and cleaning device is located between the upper conveyor belt and the lower return belt or located at the lower part of the lower return belt; the scraping-stopping and pushing component rotating structure is fixed on the frame groove; the conveyor frame includes the frame groove and / or the frame bottom component. The frame slats include a left slat and a right slat. The portion of the internally threaded scraper is located below the rotating structure of the anti-scraping and pushing component, or the portion of the internally threaded scraper is located above the rotating structure of the anti-scraping and pushing component. The rotating structure of the anti-scraping and pushing component prevents the internally threaded scraper from rotating, or the conveyor belt and / or return belt prevent the internally threaded scraper from rotating. The power screw passes through one side of the frame slats and is threadedly connected to the internally threaded scraper. The power screw is supported by the left slat and / or the right slat. The power screw directly rolls and rubs against the left slat and / or the right slat, or one end of the power screw is equipped with a screw bearing, which is directly supported by the frame slats or the screw... The bearing is indirectly supported by the frame slot or the screw bearing is supported by the drive screw component. The power screw is connected to the drive screw component. The frame slot has a discharge hole. The drive screw component is supported by the frame slot or by the frame bottom component. The drive screw component drives the power screw. The power screw rotates in the forward and reverse directions to push the internal thread scraper along the rotating structure of the anti-scraping and pushing component to scrape the material, or the internal thread scraper along the upper conveyor belt to scrape the material, or the internal thread scraper along the lower return belt to scrape the material. This pushes the material between the upper conveyor belt and the lower return belt to the outside of the conveyor. When the screw travels, it scrapes the material... When the device is located at the bottom of the return conveyor belt, the internal thread scraper is positioned between the bottom component of the frame and the return conveyor belt. The power screw passes through one side of the frame slot and is threadedly connected to the internal thread scraper. The power screw is supported by the left slot and / or right slot. The drive screw component drives the power screw. The forward and reverse rotation of the power screw pushes the internal thread scraper to reciprocate along the rotating structure of the anti-scraping pusher, scraping the material between the return conveyor belt and the bottom component of the frame out of the conveyor frame. Alternatively, the forward and reverse rotation of the power screw pushes the internal thread scraper to reciprocate along the bottom component of the frame, scraping the material between the return conveyor belt and the bottom component of the frame out of the conveyor frame.

[0065] The spiral-walking scraping and cleaning device includes a material collecting guide. The device is located between the upper conveyor belt and the lower return belt, or below the lower return belt. The material collecting guide is fixed to the frame sill, with its collection port facing the direction of the upper conveyor belt's movement. The guide includes a material collecting mechanism and a rotating structure for the anti-scraping and pushing component. The material collecting mechanism and the rotating structure for the anti-scraping and pushing component are connected to form the guide. A portion of the internally threaded scraping component is located within the guide, preventing its rotation. A power screw passes through one side of the frame sill and is threadedly connected to the internally threaded scraping component. The power screw is supported by the left and / or right sills. The frame sill has a discharge hole. The drive screw is supported by the frame sill or is located at the bottom of the frame. The drive screw assembly drives the power screw, which rotates in both directions to push the internally threaded scraper along the material collection guide, scraping and pushing the material between the upper conveyor belt and the lower return belt to the outside of the conveyor. When the spiral scraper is located at the bottom of the lower return belt, the material collection guide is located between the bottom frame component and the lower return belt. Part of the internally threaded scraper is located in the material collection guide. The power screw passes through one side of the frame groove and is threadedly connected to the internally threaded scraper. The power screw is supported by the left groove and / or right groove. The drive screw assembly drives the power screw, which rotates in both directions to push the internally threaded scraper along the material collection guide, scraping the material between the lower return belt and the bottom frame component out of the conveyor frame.

[0066] The power screw includes a front rotating component and / or a rear rotating component. The front rotating component is located at the front of the power screw and rotates the material pushed to the front of the power screw by the internal thread scraper to push it out of the conveyor. When the internal thread scraper only scrapes material to one side of the conveyor, the front rotating component rotates the material pushed to the front of the power screw by the internal thread scraper to exit the front of the internal thread scraper, while simultaneously removing the material adhering to the front of the internal thread scraper. This causes the internal thread scraper to move backward, pushing the material rotated out by the front rotating component towards the discharge hole at the rear, thus pushing the material accumulated between the upper conveyor belt and the lower return belt out of the conveyor. Alternatively, a rear rotating component can be located at the rear of the power screw. When the internal thread scraper reaches the rear of the power screw... The screw rear-end rotating component removes material adhering to the material surface after the internal thread scraper, and rotates the material out of the conveyor, preventing external material from entering between the upper conveyor belt and the lower return belt through the discharge hole, or preventing external material from entering the bottom of the lower return belt. The upper buckle widening shaft plate belt includes the upper buckle shaft plate belt and the upper buckle shaft plate return belt. An internal thread scraper is installed between the upper buckle shaft plate belt and the upper buckle shaft plate return belt to remove the clogging material at the material-carrying shaft plate. The screw front rotating component is located between the upper buckle upper component, the guard wheel body, and the material-carrying body component of the upper and lower belts, and / or the screw rear-end rotating component is located between the upper buckle upper component, the guard wheel body, and the material-carrying body component of the upper and lower belts. The front rotating part of the screw removes the blockage material between the upper and lower belts of the power screw, the material receiving body clamping upper part, the guard wheel body, and the material receiving body part, and / or the rear rotating part of the screw removes the blockage material between the upper and lower belts of the power screw, the material receiving body clamping upper part, the guard wheel body, and the material receiving body part, and the material receiving body part.

[0067] The spiral-walking scraping and cleaning device is installed between the upper conveyor belt and the lower return belt, between the upper conveyor belt pulley and the lower belt grinding wheel. It accurately removes the clogging material between the upper conveyor belt and the lower return belt, preventing the material from being difficult to remove due to the upper conveyor belt jumping upwards or the lower return belt bending downwards. Alternatively, the upper part of the conveyor belt is equipped with a belt pressure pulley to prevent the upper conveyor belt from jumping upwards. The upper conveyor belt, in conjunction with the material collection guide, uses the internal thread scraping and cleaning component to scrape and push the material accumulated between the upper conveyor belt and the lower return belt to the outside of the conveyor. Or, the lower part of the lower return belt is equipped with a lower idler roller. The lower idler roller lifts the lower return belt through rolling friction. The lower return belt, in conjunction with the material collection guide, scrapes and pushes the material accumulated between the upper conveyor belt and the lower return belt to the outside of the conveyor.

[0068] A support roller is installed on the upper or rear part of the material collecting guide of the spiral walking scraping and cleaning device. The support roller lifts the conveyor belt, so that the lower surface of the conveyor belt and the spiral walking scraping and cleaning device can both scrape and clean the material on the lower surface of the conveyor belt without wearing the conveyor belt or the spiral walking scraping and cleaning device.

[0069] The internal thread scraper is equipped with a scraper blade, which is located at the upper and / or lower part of the internal thread scraper. The blade of the scraper blade cuts off the material attached to the conveyor belt and / or the return belt. The internal thread scraper pushes the accumulated and attached material out of the conveyor.

[0070] The spiral-walking scraping and cleaning device includes a high-pressure water cannon for removing caking material. This high-pressure water cannon is mounted on the material collecting guide or on the conveyor frame. The outlet of the high-pressure water cannon faces the area prone to caking, the internal thread scraping component, or the inner cavity of the material collecting guide. When it is necessary to remove caking material, the high-pressure water cannon is activated. It uses a high-pressure jet to break up and dissolve the caking material, directly flushing it out of the conveyor. Alternatively, when the internal thread scraping component is jammed by caking material, the high-pressure water cannon is activated. It uses a high-pressure jet to break up and dissolve the caking material solidified on the internal thread scraping component and in the inner cavity of the material collecting guide, allowing the internal thread scraping component to run smoothly and pushing the caking material out of the conveyor.

[0071] The low-height anti-impact conveyor includes an omnidirectional turning conveyor. This omnidirectional turning conveyor comprises a transfer belt, a transfer return belt, a receiving belt, a transfer belt driver, a conveyor deflector, a conveyor drive roller, a conveyor driven roller, a receiving drive roller, a receiving driven roller, a transfer driver, and a receiving driver. The transfer belt is positioned above the receiving belt, and the transfer return belt is positioned above or below it. The transfer driver drives the transfer belt to transport materials around the conveyor drive roller and the conveyor driven roller. The receiving driver drives the receiving belt to rotate around the receiving drive roller and the receiving driven roller. The transfer belt driver also drives the transfer belt to transport materials. The conveyor deflector is positioned above the transfer belt, causing materials on the transfer belt to be pushed off one side. The receiving driver drives the receiving belt, which receives materials pushed off the transfer belt by the conveyor deflector, resulting in a sharp turn for transport, low drop height, and minimal space occupation.

[0072] The omnidirectional rolling friction belt conveyor includes a long-distance central drive conveyor. The long-distance central drive conveyor includes two or more gear drive units and a conveyor belt. The gear drive unit includes a head gear drive and a belt-mounted gear drive. The head gear drive is located at one end of the conveyor belt, and the belt-mounted gear drive is located in the middle area of ​​the conveyor belt. The belt-mounted gear drive includes a blind hole gear component and a power component. The conveyor belt includes a toothed conveyor belt. The blind hole gear component meshes with the toothed conveyor belt. The power component drives the blind hole gear component to assist the head gear drive in transporting materials.

[0073] The material conveying device for increasing the material passage space of the excavator includes a cover-type anti-jump pulley component, a leak-proof widening axle plate conveyor, and a toothed belt with a cover-type anti-jump pulley component. The leak-proof widening axle plate conveyor includes a toothed belt with a cover plate, a toothed belt with a cover-type anti-jump pulley component, and a widening axle plate with a cover-type anti-jump pulley component. The widening axle plate with a cover-type anti-jump pulley component includes a sealing plate, a cover-type anti-jump pulley, or a widening axle plate with a sealing plate on the upright. The widening axle plate with a cover-type anti-jump pulley component includes a material-carrying axle plate, a belt assembly shaft, a connecting shaft assembly, and a cover wheel leak-proof widening device. The material-carrying axle plate and the belt assembly shaft are either separately fixed or integrated. The connecting shaft assembly connects the front and rear belt assemblies. The leak-proof widening device includes a cover-type anti-jump pulley component. The system comprises a pulley assembly, a protective shaft, a material receiving body, and a trough side rail. The material receiving body is either separately connected to the material carrying shaft plate or integrated with it. The pulley cover assembly is integrated with the material receiving body via the protective shaft. The pulley cover assembly, protective shaft, and material receiving body together form the pulley cover widening shaft plate assembly. The pulley cover widening shaft plate assembly is either separately connected to the material carrying shaft plate or integrated with it. The pulley cover widening shaft plate assembly and the material carrying shaft plate together form the pulley cover material carrying shaft plate. The pulley cover material carrying shaft plate includes a forward convex arc and a backward concave arc. The pulley cover axle of the previous pulley cover material carrying shaft plate... The centerline of the concave arc of the rear cover plate is the same as the centerline of the assembly shaft of the rear cover anti-jump pulley material-carrying shaft plate, and it is tightly fastened to the front convex arc surface of the cover anti-jump pulley shaft plate of the rear cover anti-jump pulley material-carrying shaft plate. The centerline of the front convex arc of the rear cover anti-jump pulley shaft plate is the same as the centerline of the rear concave arc of the front cover anti-jump pulley shaft plate. The connecting belt assembly includes Z-shaped buckle belts or double-hole plate connecting belts. The front and rear assembly shafts are connected in sequence using Z-shaped buckle belts or double-hole plate connecting belts. The concave arc surface of the front cover anti-jump pulley shaft plate is tightly pressed against the front convex arc surface of the cover anti-jump pulley shaft plate of the rear cover anti-jump pulley material-carrying shaft plate, and they are all around the same centerline. When passing through the roller, the buckling and rotation prevent material leakage. The anti-jump pulley and the widening shaft plate are integrated with the material-carrying shaft plate to increase the width of the transported material and prevent leakage. The shaft plate buckling belt includes a buckling pressure plate, a buckling pressure plate, an anti-jump pulley, or a widening component on the buckling upright. When the buckling pressure plate and the anti-jump pulley are used, there is a gap between the buckling pressure plate and the side bar of the trough. A sealing plate is provided on the upper surface of the side bar of the trough. The sealing plate and the buckling pressure plate and the anti-jump pulley are staggered and overlapped. The sealing plate prevents material from leaking into the conveyor belt from the gap between the side bar of the trough and the buckling pressure plate and the anti-jump pulley, and also prevents the material-carrying shaft plate of the anti-jump pulley from overturning.Alternatively, when using a widening axle plate belt on the clamping clasp, the widening axle plate belt on the clamping clasp includes a widening axle belt device on the clamping clasp. This widening axle belt device includes a material-receiving clamping clasp upper component, a protective shaft body, a material-receiving component, and a material trough side clasp. The material-receiving clamping clasp upper component is connected to the material-receiving component via the protective shaft body. The material-receiving clamping clasp upper component, the protective shaft body, and the material-receiving component constitute the widening axle belt device on the clamping clasp. The widening strip and the material-carrying shaft plate are either separately connected or integrated. The widening strip and the material-carrying shaft plate together form the material-carrying shaft plate on the upper part of the clamping clasp. The material-carrying shaft plate on the upper part of the clamping clasp includes a forward convex arc and a backward concave arc. The backward concave arc of the material-carrying shaft plate on the upper part of the previous clamping clasp is tightly fitted to the forward convex arc surface of the material-carrying shaft plate on the upper part of the next clamping clasp. The centerline of the forward convex arc of the next clamping clasp is aligned with the front arc. The concave arc of the retaining plate is aligned with the same axis. The concave arc of the previous retaining plate is pressed against the convex arc of the material-carrying plate on the upper part of the following retaining plate, and the two plates rotate around the same axis. When passing through the roller, they engage and rotate to prevent material leakage. The anti-jump pulley and the widening axle plate are integrated with the material-carrying axle plate to increase the width of the transported material and prevent leakage. The anti-jump pulley and the widening axle plate are used to push the conveyor under the coal mining machine when it is curved or pushed. When the conveyor bends, if material leaks through a large gap between the anti-jump pulley widening shaft plate and the side rail of the material trough, the anti-jump pulley widening shaft plate slides against the lower surface of the sealing plate or the upper surface of the side rail of the material trough. This is compensated by the larger gap on the upper surface of the sealing plate or the upper surface of the side rail of the material trough compared to the gap that appears when the conveyor bends, thus preventing vertical material leakage gaps from forming on the curved surface of the conveyor and reducing material leakage.

[0074] The anti-jump belt conveyor with a leak-proof and widened axle plate includes a guide wheel on the side of the guide trough, a guide wheel fixing mechanism, and a toothed belt on the axle plate. The guide wheel fixing mechanism is installed on the guide trough, which positions the guide wheel on the side of the guide trough. The guide wheel on the side of the guide trough positions the anti-jump belt conveyor's load axle plate vertically, horizontally, and vertically. The anti-jump belt conveyor is positioned by the load axle plate of the anti-jump belt conveyor and always maintains a minimum gap with the side rail of the trough to prevent material leakage. It transports materials with the load axle plate and shovels the material mined by the coal mining machine into the transport space by pushing the side rail of the trough.

[0075] The anti-jump pulley widening belt axle plate includes solid or hollow widening belt axle plates. When a hollow widening belt axle plate is used, it can be a single-hole hollow part or a multi-hole hollow part. The anti-jump pulley widening belt axle plate can be a metal-covered anti-jump pulley widening belt axle plate, a polymer-material-covered anti-jump pulley widening belt axle plate, a plastic-covered anti-jump pulley widening belt axle plate, a metal-plastic-covered anti-jump pulley widening belt axle plate, a metal-rubber-covered anti-jump pulley widening belt axle plate, a metal-nylon-covered anti-jump pulley widening belt axle plate, a metal-polymer-material-covered anti-jump pulley widening belt axle plate, a ceramic-covered anti-jump pulley widening belt axle plate, a ceramic-metal-covered anti-jump pulley widening belt axle plate, or a nylon-covered anti-jump pulley widening belt axle plate. The three-arc anti-detachment and leak-blocking components include metal three-arc anti-detachment and leak-blocking components, nylon three-arc anti-detachment and leak-blocking components, polymer three-arc anti-detachment and leak-blocking components, or plastic three-arc anti-detachment and leak-blocking components. Three-arc anti-detachment and leak-blocking components include composite material three-arc anti-detachment and leak-blocking components. Composite material three-arc anti-detachment and leak-blocking components include metal-rubber three-arc anti-detachment and leak-blocking components, ceramic-rubber three-arc anti-detachment and leak-blocking components, ceramic-metal three-arc anti-detachment and leak-blocking components, metal-plastic three-arc anti-detachment and leak-blocking components, metal-nylon three-arc anti-detachment and leak-blocking components, or metal-polymer three-arc anti-detachment and leak-blocking components. When using a metal-plastic cap anti-jump pulley and widening shaft plate, the cap is manufactured... The injection mold for the anti-jump pulley widening shaft plate includes a metal belt shaft, a plastic cover anti-jump pulley, a plastic retaining shaft, a plastic receiving body, and a plastic carrying plate. The metal belt shaft is positioned in the injection mold, with both ends extending beyond the casting plastic area, ensuring the ends of the metal belt shaft are not completely covered by plastic. Plastic is then poured into the injection mold, ensuring the cast portion of the belt shaft connects with the plastic cover anti-jump pulley, plastic retaining shaft, plastic receiving body, and plastic carrying plate. The material plate becomes an integrated mechanism, with the metal assembly belt shaft end fastened to the connecting shaft assembly belt component. This causes the metal assembly belt bearing of the metal plastic cap anti-jump pulley and widening shaft plate to be subjected to strong transport tension. The plastic cap anti-jump pulley component, plastic protective shaft body, plastic material receiving body component, and plastic material carrying plate together form the plastic protective metal assembly belt and widening shaft plate. When manufacturing composite material three-arc anti-detachment and leak-proof components, a mold for manufacturing composite material three-arc anti-detachment and leak-proof components is set up. The composite material three-arc anti-detachment and leak-proof component includes a metal assembly belt shaft and a non-metallic enclosure. The mold for manufacturing the composite material three-arc anti-detachment and leak-proof component includes the production of non-metallic... The mold comprises a hollow area structure for the encapsulated material, a lower mold shell, a middle mold shell, and an upper mold shell. The lower mold shell, middle mold shell, and upper mold shell are equipped with a structure for fixing a metal assembly shaft and a structure for fixing the hollow area structure for the non-metallic encapsulated material. After the structure for fixing the metal assembly shaft and the hollow area structure for the non-metallic encapsulated material are positioned on the lower mold shell, middle mold shell, and upper mold shell, the non-metallic encapsulated material is poured into the mold, making the non-metallic encapsulated material and the metal assembly shaft an integral unit. The hollow area structure for the non-metallic encapsulated material is then removed to form a hollow composite material three-arc anti-detachment and leakage-blocking component.

[0076] The concave arc of the front anti-jump pulley axle plate tightly engages with the convex arc of the rear anti-jump pulley axle plate. The axis of the convex arc of the rear anti-jump pulley axle plate and its own belt shaft axis are the same as the axis of the concave arc of the front anti-jump pulley axle plate. The concave arc of the front anti-jump pulley axle plate, when tightly engaged with the convex arc of the rear anti-jump pulley axle plate, rotates around the same axis to prevent material leakage. A sealing groove is provided on either the concave arc or the convex arc of the front anti-jump pulley axle plate. The sealing groove includes a material-carrying axle plate sealing groove and / or a belt-enlarging shaft for the anti-jump pulley. The sealing groove of the plate component, the sealing groove of the material-carrying shaft plate, and the sealing groove of the cover anti-jump pulley widening shaft plate are either separately set or connected as one piece. The material-carrying shaft plate of the cover anti-jump pulley includes a buckling arc seal. The buckling arc seal is set in the concave arc sealing groove behind the cover anti-jump pulley shaft plate or in the convex arc sealing groove in front of the cover anti-jump pulley shaft plate. When the shaft plate buckling belt passes through the roller, the buckling arc seal tightly seals the area of ​​the shaft plate buckling belt that is already sealed by the arc surface, preventing material leakage and water leakage. It also provides sealing protection for the drive gear and belt shaft inside the shaft plate buckling belt and seals the belt surface of the shaft plate buckling belt. A groove seal is provided on the side rail of the material trough. The groove seal seals the gap between the cover anti-jump pulley widening shaft plate belt and the side rail of the material trough to prevent material from entering the conveyor belt. It also seals the front, back, left and right sides of the belt surface of the shaft plate buckling belt.

[0077] The centerline of the anti-jump pulley widening shaft plate and the material-carrying shaft plate are the same, or they are misaligned. When the centerline of the anti-jump pulley widening shaft plate and the material-carrying shaft plate are the same, the anti-jump pulley widening shaft plate includes a convex arc for the front of the anti-jump pulley and a concave arc for the rear. The centerline of the convex arc of the anti-jump pulley is the same as the centerline of its own belt shaft, and the front and rear anti-jump pulley widening shaft plates are of the same shape and size. The centerline of the concave arc of the anti-jump pulley is the same as the centerline of the rear belt shaft. The centerline of the convex arc of the cover anti-jump pulley with the shaft is the same as the centerline of the convex arc of the cover anti-jump pulley. The concave arc of the cover anti-jump pulley is closely fastened to the convex arc of the next cover anti-jump pulley with the centerline of the shaft as the axis. After they are closely fastened, the front and rear cover anti-jump pulleys and the wide shaft plate are connected by Z-shaped fasteners or by double-hole plate connecting parts to form a leak-free arc-surface sealed material conveying structure. Alternatively, the arc-surface sealing structure of the material-carrying shaft plate is coaxial and arc-sealable with the wide shaft plate of the cover anti-jump pulley, so that the surface of the material-carrying shaft plate and the wide shaft plate of the cover anti-jump pulley are always in an arc-seal state when passing through the roller.

[0078] The anti-jump pulley and leakage-preventing widening shaft plate conveyor includes a sealing groove on the sealing plate or a sealing groove on the side rail. When using a sealing groove on the sealing plate, it includes a square sealing groove or an irregular anti-reverse sealing groove. The sealing groove on the sealing plate is located on the lower end face of the sealing plate facing the anti-jump pulley and widening shaft plate. The sealing plate includes a sealing element, which is located between the sealing plate and the anti-jump pulley and widening shaft plate. The sealing groove on the sealing plate prevents the sealing element from falling off. The sealing element includes a round strip seal, a square strip seal, a combination seal, or a floating seal. When using a floating seal, an elastic seal is provided at the top of the sealing groove on the sealing plate, and a wear-resistant and lubricated square strip seal is provided at the bottom of the elastic seal.

[0079] The anti-jump pulley material carrier plate includes a grooved scraping material carrier plate or a boss scraping material carrier plate. When using a grooved scraping material carrier plate, a scraping groove is provided on the upper part of the anti-jump pulley material carrier plate, and the scraping groove has a scraping effect on the upper material. When using a boss scraping material carrier plate, a scraping boss is provided on the body of the anti-jump pulley material carrier plate. The scraping boss includes a plastic scraping boss, a metal scraping boss, a rubber scraping boss, a nylon scraping boss, a plastic-coated metal scraping boss, or a nylon-coated metal scraping boss. When using a plastic-coated metal scraping boss, the plastic-coated metal scraping boss includes a fully plastic-coated metal scraping boss or a partially plastic-coated metal scraping boss. The plastic-coated metal scraping boss includes a metal scraper plate, which is separately set or fixedly connected to the belt shaft. When the metal scraper plate is fixedly connected to the belt shaft, the belt shaft prevents the metal scraper plate from damaging the plastic part of the plastic-coated metal scraping boss.

[0080] The material trough side rails include a maintenance latch upright plate side rail, a front material trough side rail, and a rear material trough side rail. The front material trough side rail includes a front latch maintenance side rail boss, and the rear material trough side rail includes a rear latch maintenance side rail boss. Correspondingly, the maintenance latch upright plate side rails include a front maintenance upright boss and a rear maintenance upright boss. The front boss of the maintenance upright is inserted into the maintenance side boss of the front clasp, and the rear boss of the maintenance upright is inserted into the maintenance side boss of the rear clasp. The front and rear bosses, as well as the front and rear bosses, are equipped with slotted pin holes. After the front boss of the maintenance upright is inserted into the maintenance side boss of the front clasp, the upper and lower slotted pin holes are aligned. After the boss is inserted into the rear retainer maintenance side retainer, align the upper and lower trough retainer pin holes. The trough side retainer includes a maintenance trough retainer pin. Insert the maintenance trough retainer pin into the trough retainer pin hole, so that the maintenance retainer upright retainer side retainer, the front trough side retainer, and the rear trough side retainer form a maintenance transport belt trough. When the cover anti-jump pulley carrying bearing plate needs maintenance, remove the maintenance trough retainer pin to allow maintenance... The side plate of the retaining bracket is detached from the side plate of the conveyor belt trough, creating a maintenance space for the front and rear trough side plates. The damaged anti-jump pulley material-carrying bracket is then removed from this maintenance space for repair and assembly. The retaining bracket side plate can be installed independently or it can be equipped with a pull-out trough fixing guide wheel mechanism. The guide wheel on the side of the guide wheel is mounted on this mechanism. When the guide wheel needs repair, the pin connecting the repair trough is removed, detaching the retaining bracket side plate from the conveyor belt trough side plate. The damaged guide wheel is then removed for repair and assembly. Alternatively, a maintenance space can be created between the front and rear trough side plates, allowing for the repair and assembly of the guide wheel within this space.

[0081] The front material chute side rail includes a front rail snap-on maintenance side rail recess, and the rear material chute side rail includes a rear rail snap-on maintenance side rail recess. Correspondingly, the maintenance snap-on upright plate side rail includes a front maintenance upright boss and a rear maintenance upright boss. The front maintenance upright boss is inserted into the front rail snap-on maintenance side rail recess, and the rear maintenance upright boss is inserted into the rear rail snap-on maintenance side rail recess. The front rail snap-on maintenance side rail recess, the rear rail snap-on maintenance side rail recess, the front maintenance upright boss, and the rear maintenance upright boss are all provided with slotted bar pin holes. After the front maintenance upright boss is inserted into the front rail snap-on maintenance side rail recess, the upper and lower slotted bar pin holes are aligned to form the front slotted bar pin hole. After the rear boss of the upright bar is inserted into the recess of the maintenance side bar of the rear bar buckle, the pin holes of the upper and lower groove bars are aligned to form the pin hole of the rear groove bar. The material trough side bar includes the pin shaft connecting the maintenance groove bar. The pin shaft connecting the maintenance groove bar is inserted into the pin holes of the front groove bar and the rear groove bar, connecting the maintenance buckle upright bar plate side bar, the front material trough side bar, and the rear material trough side bar to form a maintenance transport belt material trough. When the cover anti-jump pulley material bearing plate needs to be... During maintenance, remove the connecting maintenance groove pin, disengaging the maintenance buckle plate side plate from the material trough side plate, creating maintenance space between the front and rear material trough side plates. Remove the damaged cover anti-jump pulley material-carrying shaft plate from the maintenance space for repair and assembly. The maintenance buckle plate side plate can be set separately or equipped with a pull-out material trough fixing guide wheel mechanism. The guide wheel on the side of the material trough is set on the pull-out material trough fixing guide wheel mechanism. When the guide wheel on the side of the material trough needs maintenance, remove the connecting maintenance groove pin, disengaging the maintenance buckle plate side plate from the material trough side plate, and remove the damaged guide wheel for repair and assembly. Alternatively, create maintenance space between the front and rear material trough side plates, and repair and assemble the guide wheel on the side of the material trough within the maintenance space.

[0082] The front material trough side sill includes a bottom flat concave surface and / or a bottom arc concave surface. When the bottom arc concave surface is used, the corresponding maintenance upright sill front protrusion includes a top arc convex surface. The bottom arc concave surface and the top arc convex surface engage to form a vertical arc surface engagement platform for the sill. When the material trough side sill rises as needed to excavate one end of the ground, the bottom arc concave surface of the front material trough side sill rotates around the top arc convex surface engagement arc and rises upward. When the ground tilts downward, the bottom arc concave surface of the front material trough side sill rotates around the top arc convex surface engagement arc and bends downward.

[0083] The beneficial effects of this invention are:

[0084] 1. The anti-leakage convex arc is located at the front of the three-arc anti-leakage component and is coaxial with the arc of the belt shaft surface. The anti-leakage concave arc is located at the rear of the three-arc anti-leakage component and is coaxial with the anti-leakage convex arc and the arc of the belt shaft surface of the adjacent rear three-arc anti-leakage component. The center distance from the front axle hole to the rear axle hole is the same as the center distance from the front belt shaft of the front three-arc anti-leakage component to the rear belt shaft of the rear three-arc anti-leakage component. The centerline of the front axle hole is aligned with the centerline of the front belt shaft of the front three-arc anti-leakage component. The centerlines are the same, and the centerlines of the rear shaft hole and the rear set of shafts are the same. The arcs of the front and rear shaft holes are respectively attached to the arcs of the front and rear set of shaft surfaces, tightly connecting the front and rear three-arc anti-loosening and leak-proof components. This ensures that the anti-loosening convex arc and the anti-loosening concave arc are tightly attached, preventing the anti-loosening concave arc from detaching from the anti-loosening convex arc of the rear three-arc anti-loosening and leak-proof component. The anti-loosening concave arc and the anti-loosening convex arc of the attached rear three-arc anti-loosening and leak-proof component are closely connected. The centerlines of the axial surface arc and the arc of the buckle hole that interlocks with the axial surface arc of the belt assembly are the same, forming a four-arc coaxial leak-proof structure. This ensures that the distance between the centerlines of the front belt assembly shaft and the rear belt assembly shaft is equal to the distance between the centerlines of the buckle hole and the buckle hole. Furthermore, the minimum distance from the centerline of the front belt assembly shaft of the first three-arc leak-proof component to the leak-proof concave arc surface of the rear three-arc leak-proof component, plus the distance from the centerline of the rear belt assembly shaft of the rear three-arc leak-proof component to the leak-proof convex arc surface of the rear three-arc leak-proof component, is calculated. The minimum distance is the minimum distance between the front and rear anti-disengagement arc surfaces. This minimum distance is the same as the distance between the center lines of the front and rear axle holes of the double-hole buckle component. The distance between the center lines of the front and rear axle holes is set as the distance between the center lines of the connecting holes. Under the constraint of the distance between the center lines of the connecting holes, the minimum distance between the front and rear anti-disengagement arc surfaces ensures that the center line of the front belt shaft rotates equidistantly around the center line of the rear belt shaft, with the distance between the center lines of the front and rear belt shafts as the radius. Because the center line of the belt shaft of the three-arc anti-disengagement component has only one parallel line to its own anti-disengagement arc surface with the minimum distance, other anti-disengagement arc surface lines are arranged on both sides of this parallel line. These other anti-disengagement arc surface lines include the upper and lower anti-disengagement arc surface lines above the minimum distance line. The distance from any other anti-detachment concave arc surface line to the center line of the same belt shaft is greater than the distance from the minimum distance line of the anti-detachment concave arc surface to the center line of the same belt shaft. The upper anti-detachment concave arc surface lines prevent the first three arc anti-detachment leak-proof components from detaching downwards from the last three arc anti-detachment leak-proof components, and the lower anti-detachment concave arc surface lines prevent the first three arc anti-detachment leak-proof components from detaching upwards from the last three arc anti-detachment leak-proof components. Therefore, under the constraint of the double-hole buckle component, the minimum distance between the front and rear anti-detachment buckle arc surface lines limits the anti-detachment leak-proof concave arc surface of the first three arc anti-detachment leak-proof components from detaching and flipping relative to the anti-detachment leak-proof convex arc surface of the last three arc anti-detachment leak-proof components. The anti-detachment leak-proof concave arc always runs in contact with the anti-detachment leak-proof convex arc, ensuring that the front and rear buckled three arc anti-detachment leak-proof components always operate with their arc surfaces in a sealed manner. This allows multiple front and rear three arc anti-detachment leak-proof components to be interlocked to form a large arc surface interlocking anti-detachment band.The length of the arc surface where the anti-loosening concave arc and the anti-loosening convex arc engage is greater than the length of the anti-loosening band when it passes through the meshing shaft plate belt. When the anti-loosening concave arc of the first three arc anti-loosening components engages with the anti-loosening convex arc of the last three arc anti-loosening components, the exposed anti-loosening convex arc segment rotates downwards around the belt axis of the last three arc anti-loosening components. This ensures that the arc surface where the anti-loosening concave arc and the anti-loosening convex arc engage always has a sealing section. The three-arc anti-loosening components or double-hole shaft fasteners are equipped with a shaft plate belt engagement mechanism that meshes with the meshing shaft plate belt. The front and rear shaft holes are respectively fastened to the front and rear belt shafts. Multiple double-hole shaft fasteners are staggered and connected. Multiple three-arc anti-detachment and leak-blocking components are connected to form a toothed conveyor belt. The shaft plate belt meshing mechanism meshes with the blind hole shaft plate gear or the blind hole shaft plate roller. The blind hole shaft plate gear drives the shaft plate belt meshing mechanism, which in turn drives the toothed conveyor belt to transport materials. The group belt shaft and the three-arc sealed material carrier are either separately connected or integrated. The front and rear shaft holes are respectively connected to the front and rear group belt shafts, so that the group belt shafts are connected front and rear to form a group belt shaft meshing belt. The group belt shaft meshing belt meshes with the shaft plate belt to transport materials through rolling friction. The blind hole shaft plate with snap teeth has belt shafts at both ends. The double-hole snap shaft parts connect the front and rear belt shafts, making the front and rear blind hole shaft plates into blind hole snap tooth shaft plate belts. The meshing shaft plate belt parts have snap shaft plate protrusions that engage with the bottom snap tooth blind holes of the shaft plate. The bottom snap tooth blind holes of the shaft plate mesh with the snap shaft plate protrusions. The meshing shaft plate belt parts drive the bottom snap tooth blind holes of the shaft plate. The snap shaft plate protrusions drive the blind hole snap tooth shaft plate belt to transport materials. Using the snap tooth blind hole shaft plate reduces the overall height of the transport section, eliminates the leakage and jamming areas between the drive section and the transport belt meshing area, and makes the transport belt non-stretching, non-slipping, strong in tensile strength, and rolling friction transport. The four-arc coaxial anti-leakage structure utilizes a three-arc anti-leakage component and a double-hole buckle component with a coaxial interlocking principle. This ensures that the front and rear axle plates are sealed throughout the entire operation via arc-shaped interlocking, preventing material leakage and enhancing the mutual support function of the front and rear axle plates. This avoids accidents such as transport resistance caused by material accumulation and caking inside the conveyor belt, as well as motor overload and burnout.

[0085] The blind-hole shaft plate with snap-fit ​​teeth not only restricts the conveyor belt from swinging left and right relative to the drive shaft, but the solid surface outside the blind hole also increases the tensile strength of the conveyor belt. This facilitates the rolling friction support of the conveyor belt by the idler, preventing the conveyor belt from wavy movement caused by uneven bottom surfaces when passing over the idler. It also ensures that the sealing plates on both sides of the conveyor belt maintain a reasonable gap with the upper surface of the conveyor belt to prevent material leakage. This invention uses a gear-driven shaft plate with snap-fit ​​teeth and a meshing mechanism to drive the snap-fit ​​conveyor belt to transport materials. It features a small turning radius, and the conveyor belt is manufactured according to the minimum turning radius of snap-fit ​​conveyors. The belt height is relatively small compared to ring chain scraper conveyors, plate conveyors, and twin-shaft roller chain conveyors. The height is reduced by more than 30%, especially when the tooth groove is recessed into the material-carrying body and the drive teeth are inserted into the material-carrying body, further reducing the space height of the drive and driven components. This further reduces the height of the conveyor belt, increasing the material passage height for excavators and coal mining machines, greatly expanding the application scope and performance of rolling friction conveyor belts. The material-carrying body is directly driven by the drive component, replacing the roller chain, and its structural strength is stronger than that of the roller chain. The meshing shaft plate belt components are set inside the conveyor belt, protecting them from contamination and damage, and reducing the space occupied by the lateral arrangement of the conveyor belt and meshing shaft chain plate belt components. Based on site requirements and the structure of supporting components, the drive teeth are adjusted and positioned in the middle, on both sides of the middle, or at both ends of the material-carrying body. A row of drive teeth can be set in the middle of the meshing shaft plate belt, widening the length of a single row of drive teeth. This results in a simple structure with high strength, reducing manufacturing costs and the complexity of the manufacturing process. Driving the conveyor belt from the middle avoids defects such as chain crawling and tooth breakage caused by left-right slippage of the conveyor belt surface. It also avoids various malfunctions caused by material impact, blockage, and contamination within the tunneling machine frame when drive components are placed on both sides of the conveyor belt. Furthermore, it avoids material leakage due to gaps in roller chains and overcomes defects such as material jamming, jamming, and rapid wear in ring chain scraper conveyors, thus reducing the slippage of ring chain scraper conveyors. Dynamic friction, which is the rolling friction of the conveyor belt lifting material, reduces noise and energy consumption. It overcomes the shortcomings of traditional double-shaft conveyor belts, which cannot be used for conveying materials from the scraper plate to the end of the main frame of a tunneling machine, by changing the design. This improves the material handling space of the main frame, increases production efficiency, and changes the sliding friction transport method of the scraper conveyor at the bottom of the coal mining machine. It also reduces the height of the conveyor used in the coal mining machine, decreases the resistance of the side-push conveyor during loading, and solves the problem of large material accumulation on the side of the coal mining machine due to the high height of the scraper conveyor, thus improving loading efficiency, reducing maintenance costs, and lowering power consumption.

[0086] 2. The toothed shaft plate has belt shafts at both ends. Double-hole buckle shafts are fastened to the belt shafts, making the toothed shaft plate a toothed buckle arc shaft plate belt. The meshing shaft plate belt has a buckle plate tooth blind hole groove that engages with the bottom tooth of the shaft plate. The buckle plate tooth blind hole groove meshes with the bottom tooth of the shaft plate. The power component drives the meshing shaft plate belt, and the meshing shaft plate belt drives the buckle plate tooth blind hole groove. The buckle plate tooth blind hole groove drives the toothed buckle arc shaft plate belt to transport materials. It has high structural strength and low operating cost.

[0087] The planar buckle-arc shaft plate has a set belt shaft at both ends. The blind hole buckle tooth connector is set on the set belt shaft to become the blind hole buckle tooth connector belt. The meshing shaft plate belt has a driving double hole buckle shaft convex tooth that engages with the buckle tooth blind hole of the connector. The driving double hole buckle shaft convex tooth engages with the buckle tooth blind hole of the connector. The driving double hole buckle shaft convex tooth drives the blind hole buckle tooth connector belt to transport materials. Alternatively, the meshing shaft plate belt has a driving shaft plate tooth blind hole groove that engages with the bottom convex tooth of the connector. The convex tooth double hole buckle shaft hole is buckled with the set belt shaft to become the convex tooth connector belt. The meshing shaft plate belt drives the convex tooth double hole buckle shaft, which drives the convex tooth connector belt to transport materials. The bottom convex tooth of the connector enables the connector to have both the function of connecting the front and rear shaft plates and the function of buckle gear drive.

[0088] 3. The three-arc seal single-shaft component or the connecting single-shaft plate component is equipped with a single-shaft plate belt meshing mechanism. The single-shaft plate belt meshing mechanism meshes with the single-shaft plate gear or the single-shaft plate belt meshing mechanism meshes with the single-shaft plate roller. The belt shaft and the three-arc seal material carrier are separately connected and fixed or integrated. The connecting single-shaft plate component is equipped with a front single-shaft plate hole and a rear single-shaft plate hole. The front single-shaft plate hole and the rear single-shaft plate hole respectively connect the front belt shaft and the rear belt shaft, so that the three-arc seal single-shaft component is connected front and rear to form a three-arc coaxial seal single-shaft plate belt. The power component drives the meshing single-shaft plate belt component, and the meshing single-shaft plate belt component drives the single-shaft plate belt meshing mechanism. The three-arc coaxial seal single-shaft plate belt engages with the meshing single-shaft plate belt component to transport materials through rolling friction. The connecting single-shaft plate component and the single-shaft plate component form a... The three-arc coaxial seal single-shaft plate belt can reduce the width of the single-shaft plate belt component, resulting in a smaller turning radius for the conveyor belt formed by multiple single-shaft plate belt components. It also reduces the height from the upper to the lower surface of the conveyor belt. When used under the shovel of a tunneling machine, it reduces the shoveling height and resistance. Connecting the single-shaft plate component's shaft hole with the front and rear single-shaft plate protrusions creates a blind-hole buckle single-shaft plate belt. The meshing single-shaft plate belt component has buckle protrusions that engage with the bottom buckle blind holes of the single-shaft plate. The meshing single-shaft plate belt component drives the bottom buckle blind holes of the single-shaft plate, and the buckle protrusions drive the blind-hole buckle single-shaft plate belt to transport materials. The planar buckle arc single-shaft plate has single-shaft plate protrusions at both ends, and the buckle blind holes connect to the single shaft... The single-shaft plate convex shafts of the front and rear shaft holes are connected to form a single-shaft plate belt with blind holes for fastening teeth. The meshing single-shaft plate belt component is provided with driving single-shaft plate convex teeth that engage with the blind holes for fastening teeth at the bottom of the connecting single-shaft plate. The driving single-shaft plate convex teeth engage with the blind holes for fastening teeth at the bottom of the connecting single-shaft plate, and the driving single-shaft plate convex teeth drive the single-shaft plate belt with blind holes for fastening teeth to transport materials. When using a three-arc seal double-shaft component, the lower part of the three-arc seal material carrier is provided with three-arc anti-detachment material carrier blind holes for fastening teeth that engage with the meshing shaft plate belt component. The single-shaft plate belt with blind holes for fastening teeth formed by this invention has a small turning radius, maximizes the sealing of the leakage-blocking arc surface, and improves the leakage-blocking sealing effect by several times. The conveyor belt is manufactured according to the minimum turning radius of the single-shaft plate belt with blind holes for fastening teeth, and the belt height is reduced by 40% compared to the height of the ring chain scraper conveyor and the double-shaft roller chain conveyor. This design, with a height reduction of over 90%, further lowers the conveyor belt height. The toothed blind hole connected single-shaft plate belt serves as the drive chain, allowing the material carrier to be directly driven by the drive components. This replaces the roller chain, and its structural strength is significantly greater. The toothed blind hole connected single-shaft plate belt greatly reduces the height of the shovel section connecting the tunneling machine's transport section. It allows the toothed blind hole connected single-shaft plate belt to be positioned at a lower point on the shovel, extending the shovel's extension length. This ensures that material pushed towards the conveyor by the shovel's material-pushing teeth is promptly transported by the toothed blind hole connected single-shaft plate belt. This overcomes the defect where material pushed towards the conveyor by the shovel's material-pushing teeth could not be promptly transported to the rear transport system of the tunneling machine due to the high height of the conveyor. This improves the working performance and efficiency of the tunneling machine and coal mining machine in loading and transporting materials.

[0089] 4. The rear of the tunneling machine frame is equipped with a support structure for the meshing shaft plate and belt. This structure supports the meshing shaft plate and belt and the power unit. The shovel and collect plate is fixedly connected to or hinged to the tunneling machine frame. The shovel and collect plate has a driven member that engages with the meshing shaft plate and belt. The toothed conveyor belt surrounds the meshing shaft plate and belt and the driven member. The power unit drives the meshing shaft plate and belt to rotate the toothed conveyor belt around the meshing shaft plate and belt and the driven member. The toothed conveyor belt transports the material collected by the shovel and collect plate to the rear end of the frame. A material slippage prevention mechanism prevents the material from slipping off the belt axle or double-hole buckle axle. The conveyor belt is equipped with a blind hole shaft plate with a deviation prevention mechanism on one or both sides. This mechanism includes a blind hole shaft plate with a deviation prevention retaining ring, a shaft plate with a deviation prevention wheel, or a shaft chain plate with a deviation prevention stop. The blind hole shaft plate with a deviation prevention retaining ring is movably connected to or integrally formed with the meshing shaft plate belt component. The shaft chain plate with a deviation prevention stop is movably connected to or integrally formed with the meshing shaft plate belt component. The shaft plate with a deviation prevention wheel is mounted on the tunneling machine frame or on the shovel and collect plate. This wheel prevents the conveyor belt from deviating and wearing off the tunneling machine frame or the shovel and collect plate. The wheel can be a flat anti-deviation wheel or a grooved anti-deviation wheel. When a grooved anti-deviation wheel is used... When the conveyor belt is in operation, the grooved anti-deviation wheel includes a groove on its outer circumference. The side of the toothed conveyor belt is embedded in the groove on the outer circumference of the wheel, preventing the toothed conveyor belt from jumping up and down. Alternatively, the tunneling machine frame or the shovel and collect plate may have a pressing toothed conveyor belt wheel. When the bottom of the material trough formed by the shovel and collect plate and the tunneling machine frame is not straight, or when the shovel and collect plate is not straight with the bottom of the material conveying space of the tunneling machine frame, the pressing toothed conveyor belt wheel prevents the toothed conveyor belt from shifting up and down. The tunneling machine frame near the meshing shaft plate belt component has a pressing meshing mechanism wheel, which is located at the meshing point of the shaft plate belt meshing mechanism and the meshing shaft plate belt component. The upper part of the conveyor belt prevents the axle plate belt meshing mechanism from failing to mesh with the meshing axle plate belt component due to the upward floating of the toothed conveyor belt. The rear of the tunneling machine body frame is equipped with a support structure for the meshing axle plate belt component. This support structure supports the meshing axle plate belt component and the power component. The shovel collection plate is fixedly connected or hinged to the tunneling machine body frame. The shovel collection plate is equipped with a toothed axle plate driven component that cooperates with the meshing axle plate belt component. The toothed conveyor belt surrounds the meshing axle plate belt component and the toothed axle plate driven component. The power component drives the meshing axle plate belt component to rotate the toothed conveyor belt around the meshing axle plate belt component and the toothed axle plate driven component. The toothed conveyor belt transports the material collected by the shovel collection plate to the rear end of the body frame. Using a toothed conveyor belt with a small turning radius to transport material collected by the shovel collector to the rear of the tunneling machine frame allows for a reduction in the thickness of the shovel collector and the height of the tunneling machine frame. This reduces the material handling resistance of the shovel collector and the overall height of the tunneling machine, enabling it to mine only the required ore according to user needs. This improves the tunneling machine's applicability and working efficiency. Within a frame of the same height, replacing the circular chain scraper conveyor belt with a toothed conveyor belt increases the transport capacity and avoids problems such as material jamming and severe material return issues associated with circular chain conveyors.

[0090] 5. The material sliding prevention mechanism prevents material from sliding off the buckle-arc leak-proof and anti-detachment shaft or connecting plate. The meshing shaft plate belt is equipped with a shaft plate belt deviation prevention mechanism on one or both sides, such as a long plate to prevent material sliding, a round protrusion to prevent material sliding, a short plate to prevent material sliding, a tooth to prevent material sliding, or a groove to prevent material sliding. When the buckle-tooth conveyor belt transports materials on a large slope, it prevents material from sliding off the buckle-arc leak-proof and anti-detachment single shaft or connecting single shaft chain plate, thereby improving the buckle-tooth conveyor belt's material transport capacity on large slopes.

[0091] The anti-deviation plate with a deflection wheel is installed on the tunneling machine frame or on the shovel and collect plate. The anti-deviation plate with a deflection wheel prevents the toothed conveyor belt from deviating and wearing down the tunneling machine frame or the shovel and collect plate. When a grooved anti-deviation wheel is used, the grooved anti-deviation wheel includes a groove on the outer circumference of the wheel. The side of the toothed conveyor belt is embedded in the groove on the outer circumference of the wheel. The groove on the outer circumference of the wheel prevents the toothed conveyor belt from jumping up and down, and prevents the toothed conveyor belt from floating up, so that the bottom tooth groove of the single shaft plate and the protruding tooth of the single shaft chain plate cannot mesh, thus ensuring the safe, stable and efficient operation of the toothed conveyor belt.

[0092] When the bottom of the material trough formed by the shovel and the receiving plate and the tunneling machine frame is not in a straight line, or when the shovel and receiving plate rises and the bottom of the material conveying space of the tunneling machine frame is not in a straight line, the toothed conveyor belt pulley prevents the toothed conveyor belt from shifting up and down. The meshing mechanism pulley is set on the upper part of the toothed conveyor belt at the meshing point between the shaft plate belt meshing mechanism and the meshing shaft plate belt component, preventing the shaft plate belt meshing mechanism and the meshing shaft plate belt component from failing to mesh due to the toothed conveyor belt floating up.

[0093] When the bottom of the material trough formed by the shovel and the material receiving plate and the tunneling machine frame is not in a straight line, or when the shovel and the material receiving plate is raised and the bottom of the material conveying space of the tunneling machine frame is not in a straight line, the toothed conveyor belt pulley prevents the toothed conveyor belt from shifting up and down, avoids changes in the material conveying track of the conveyor belt causing the conveying space to become narrow, and avoids malfunctions caused by unstable operation of the toothed conveyor belt.

[0094] The pressing engagement mechanism wheel is located on the upper part of the toothed conveyor belt at the meshing point between the single-shaft plate belt engagement mechanism and the meshing single-shaft plate belt component. This prevents the single-shaft plate belt engagement mechanism from failing to mesh with the meshing single-shaft plate belt component due to the toothed conveyor belt floating up. It ensures proper meshing between the bottom tooth groove of the single-shaft plate and the protruding tooth of the single-shaft plate, preventing material from entering the bottom tooth groove of the single-shaft plate and improving the service life of the toothed conveyor belt.

[0095] 6. The blind hole shaft plate inner toothed belt guide groove is integrated with or separate from the tunneling machine body frame. The idler roller is supported by the tunneling machine body frame, the shovel collecting plate, or the blind hole shaft plate inner toothed belt guide groove. The idler roller on the idler plate is set between the meshing shaft plate belt and the driven part of the buckle plate. The rolling friction lifts the material section of the buckle toothed conveyor belt. The idler roller at the bottom of the idler plate is set at the bottom of the buckle toothed conveyor belt to prevent the buckle toothed conveyor belt from falling. The idler roller and the buckle toothed conveyor belt form rolling friction to ensure that the buckle toothed conveyor belt is not worn by the support, and to ensure that the buckle toothed conveyor belt does not deform, is reliable for a long time, and operates safely and without noise.

[0096] 7. The three-arc anti-detachment sealing groove is set in the area between the front and rear three-arc anti-detachment and leak-blocking components when they pass through the gear roller. The three-arc anti-detachment seal is set in the convex arc surface sealing groove or the concave arc surface sealing groove to seal the gap between the three-arc anti-detachment and leak-blocking components, forming a three-arc anti-detachment sealing band. The material guide groove of the sealing band includes a material guide groove bar, a sealing groove cover plate, and a material groove cover plate seal. The material guide groove bar supports the sealing groove cover plate, and the material groove cover plate seal is set in the sealing groove. The cover plate and the three-arc anti-detachment sealing strip prevent material from leaking between the sealing groove cover plate and the three-arc anti-detachment sealing strip. The sealing groove of the three-arc anti-detachment component is equipped with a sealing element to further seal the conveyor belt, which is already sealed by the arc surface fastening to prevent leakage. This is a function that scraper conveyors and plate conveyors do not have. The three-arc anti-detachment sealing strip protects the drive components and support components inside the conveyor belt through sealing. The three-arc anti-detachment sealing strip, together with the material trough cover plate sealing element, comprehensively improves the use function of the three-arc anti-detachment sealing strip and reduces various hazards caused by material leakage from the belt surface and side.

[0097] 8. When using a metal-plastic triple-arc anti-detachment and leak-blocking component, a three-arc anti-detachment and leak-blocking component injection mold is manufactured. The metal assembly shaft is positioned in the injection mold, with both ends of the metal assembly shaft extending beyond the casting plastic area. The ends of the metal assembly shaft are not covered by plastic. Plastic is then poured into the injection mold, making the cast portion of the metal assembly shaft and the plastic carrier plate an integrated mechanism. The ends of the metal assembly shaft are fastened to the connecting shaft assembly, subjecting the metal assembly bearing of the metal-plastic triple-arc anti-detachment and leak-blocking component to strong transport tension. This allows the metal assembly shaft to drive the plastic carrier plate to transport materials, reducing the weight of the conveyor belt and increasing its corrosion resistance. The lightweight and durable properties of polymer, plastic, or nylon triple-arc anti-detachment and leak-blocking components contribute to this design. With advantages such as high wear resistance, non-stick surface, corrosion resistance, high toughness, good insulation, low cost, easy manufacturing, and easy maintenance, the conveyor belts used in conveyor systems improve the efficiency of large-scale production, reduce on-site costs and maintenance difficulties. The high load-bearing capacity and tensile strength of the metal belt axle ensure the structural strength of the conveyor belt system. The easy-to-form, lightweight, high-strength, highly wear-resistant, and high-precision components reduce the overall weight of the conveyor belt, improve the fastening accuracy of each component, reduce the difficulty of machining metal, and lower manufacturing difficulty and costs. This allows for a reduction of more than half the weight of the conveyor belt, while doubling the length of the conveyor belt with the same driving power, reducing energy consumption, improving the efficiency of large-scale production, facilitating on-site handling, assembly, and rapid maintenance, and further reducing energy consumption.

[0098] 9. When using a composite material three-arc anti-detachment and leakage-blocking component, one end of the connecting belt shaft section is connected to the belt shaft or is integral with it, and the other end is connected to the flat material-carrying section or is integral with it. The connecting belt shaft section and the flat material-carrying section form a skeleton material-carrying component. When using a snap-connector belt shaft, the snap-connector belt shaft is snapped to a double-hole snap-shaft component. The skeleton material-carrying component is provided with a gear groove for the connecting belt shaft component. When using a skeleton gear through-hole groove, the height of the driving composite shaft plate teeth is equal to or less than the height of the skeleton gear through-hole groove. The limiting gear platform restricts the driving composite shaft plate teeth from pushing against the wear-resistant wrapping material on the upper part of the skeleton positioning platform gear through-hole groove. The through-hole groove of the buckle gear not only has the high strength function of the buckle drive gear groove, but also enhances the stability and safety performance of the conveyor belt compared to the flexible conveyor belt. Because it is a through hole, it saves materials and reduces the manufacturing difficulty. It allows the skeleton material-carrying component to play the function of high strength bearing drive force. The wear-resistant coating covers the through hole of the skeleton material-carrying component to prevent material leakage. Utilizing the non-corrosion property of the wear-resistant coating, the stability of the conveyor belt surface is improved, avoiding the defect of rusted holes and grooves trapping return material. The limit gear platform prevents the wear-resistant coating from being pushed and deformed by the drive gear, so that the wear-resistant coating on the conveyor belt surface is in the tooth groove for a long time, preventing material leakage and supporting material transportation.

[0099] 10. When transporting materials forward, the composite shaft plate teeth mesh with the front tooth drive unit to transport materials forward; when transporting materials backward, the composite shaft plate teeth mesh with the rear tooth drive unit to transport materials backward. The bidirectional drive structure, through bidirectional unloading during the transportation process, ensures that when the coal mining machine is moving forward for mining, the material that has been mined is smoothly transported out of the mining site by the forward-moving conveyor belt, and when the coal mining machine is moving backward for mining, the material that has been mined is smoothly transported out of the mining site by the backward-moving conveyor belt. This avoids the malfunction of material accumulating at the front of the coal mining machine and being difficult to transport out of the mining site when the conveyor belt is moving forward for mining and the coal mining machine is moving backward, thereby improving production efficiency and production safety.

[0100] 11. Position the high-strength frame in the injection mold of the three-arc anti-detachment and leak-proof component, ensuring that both ends of the belt shaft extend beyond the area where the wear-resistant coating is cast, preventing the ends of the belt shaft from being covered by the wear-resistant coating. Pour the wear-resistant coating material into the injection mold of the three-arc anti-detachment and leak-proof component. The wear-resistant coating is made of a lightweight material, lighter than the high-strength frame material. This allows the high-strength frame of the composite material three-arc anti-detachment and leak-proof component to withstand strong transport tension, enabling the meshing shaft plate belt component to drive the connecting belt shaft component to engage the gear groove for transporting materials. This reduces the weight of the conveyor belt, increases its corrosion resistance, and eliminates the leakage area on the upper part of the gear meshing belt shaft. When using a gear-engaged belt shaft, position the high-strength frame in the injection mold of the three-arc anti-detachment and leak-proof component, ensuring that both ends of the gear-engaged belt shaft extend beyond the area where the wear-resistant coating is cast, preventing the ends of the gear-engaged belt shaft from being covered by the wear-resistant coating. The leak-proof component is injected into the mold with a wear-resistant encapsulating material. The wear-resistant encapsulating material is lightweight, lighter than the high-strength skeleton material. The gear set belt shaft is connected to the meshing shaft plate belt component, and the meshing shaft plate belt component structure is provided. This allows the gear set belt bearing of the composite material three-arc anti-detachment leak-proof component to be subjected to strong transport tension. The meshing shaft plate belt component drives the gear set belt shaft to transport materials, reducing the weight of the conveyor belt and increasing its corrosion resistance. By utilizing the easy casting, light weight, high strength, high wear resistance, and high mold precision of wear-resistant materials such as plastics, it can produce high-precision components that encapsulate the relatively low casting precision of the high-strength skeleton. This achieves the complementary advantages of high skeleton strength and high external precision of the encapsulating material, resulting in high utilization value. This reduces the overall weight of the conveyor belt, improves the tensile strength of the conveyor belt, increases the belt surface fastening precision, improves the leak-proof effect of the arc surface fastening, and reduces material costs.

[0101] 12. The vertical height of the driven body before and / or after the gear slot is less than the horizontal width of the driven body before and / or after the gear slot. This increases the shear resistance of the driven body before and after the gear slot, increases the thickness of the wear-resistant coating, increases the horizontal width of the driven body before and / or after the gear slot, and reduces the thickness of the skeleton material component. Utilizing the principle that a horizontally laid plate of the same thickness is more resistant to lateral thrust shear than a vertically laid plate, this reduces the height of the skeleton material component, increases the thickness of the wear-resistant coating, and makes the entire composite material three-arc anti-detachment and leakage-blocking component lightweight, low in manufacturing cost, and long in service life.

[0102] 13. When using porous inclusion bodies to connect belt shaft components, inclusion body holes are provided on the skeleton load component. Wear-resistant inclusion bodies are injected into these holes, and the wear-resistant inclusion bodies within them form an integral structure with the upper and lower wear-resistant inclusion bodies of the skeleton load component. This increases the structural strength of the wear-resistant inclusion bodies themselves and improves the bonding strength between the skeleton load component and the wear-resistant inclusion bodies. It also reduces the weight of the skeleton load component, thins the belt surface height, lowers the transport height, and reduces material costs. This skeleton load component uses a composite material three-arc anti-detachment and leakage-blocking component. The high compressive and tensile strength of the skeleton material-carrying components ensures the structural strength of the axle plate belt conveyor. Utilizing the wear-resistant coating's easy casting, light weight, high strength, high wear resistance, high insulation, and high component precision, the overall weight of the conveyor belt is reduced. This improves the fastening accuracy of each component, reduces the energy consumption, time, and equipment costs associated with milling hard materials such as metal, lowers manufacturing difficulty and material costs, and reduces the conveyor belt weight by more than half. With the same driving power, the conveyor belt length can be doubled, reducing energy consumption, facilitating on-site handling, assembly, and rapid maintenance, and improving the efficiency of large-scale production.

[0103] 14. A primary transport loader is supported by the main frame of the excavator, the ground, or rails. The lower part of the primary transport loader is directly connected to the ground, or it is equipped with ground-mounted wheels. A secondary transport loader is connected to the primary transport loader via a rotary connection. The unloading end of the primary transport loader is movably connected to subsequent material receiving facilities for material transfer. The secondary transport loader is supported by the ground or rails. When supported by the ground, the lower part of the secondary transport loader is directly connected to the ground, or it is equipped with ground-mounted wheels. When supported by rails, the lower part of the secondary transport loader is equipped with rail wheels. A rotary connection structure is provided between the secondary transport loader and the primary transport loader. The secondary transport loader includes a secondary transport guide chute. One end of the primary transport loader supports one end of the secondary transport loader via the rotary connection structure. The other end of the secondary transport loader is supported by ground-mounted wheels or rails. The system includes wheel supports. When the first transport machine rises or falls, the tail of the second transport machine is driven to rise or fall by the first transport machine. The ground-walking wheels or track wheels include axles. The second transport machine rotates around the axle of the ground-walking wheel or the axle of the track wheel. Alternatively, the connection between the second transport machine and the ground-walking wheel or track wheel is provided with a second transport guide chute connected to the traveling wheel component. The second transport guide chute connected to the traveling wheel component is provided with a second transport guide chute rotating structure. When the first transport machine rises or falls, the second transport guide chute rotates around the second transport guide chute rotating structure. This prevents the second transport machine from causing lifting resistance to the first transport machine, prevents improper matching between the dropping end and the receiving end caused by the height difference between the first and second transport machines and the lifting height difference, which could result in a large drop in material and damage to the material, and prevents material from falling from the first transport machine into the second transport machine.

[0104] A secondary material guide chute support is installed on the upper part of the ground-walking wheels or track wheels. The secondary material guide chute support directly supports the secondary material guide chute, or a guide chute rotating disk is installed between the secondary material guide chute support and the secondary material guide chute. The guide chute rotating disk supports the rotation of the secondary material guide chute by rolling friction when the secondary material guide chute swings left and right. While the excavator is working, a track is laid in the space between the secondary track wheels and the lower part of the primary transport vehicle. Before the excavator moves forward, the track near the track wheels is laid, so that the excavator drives the secondary transport vehicle along the track, achieving... While the excavator is working, the transportation department simultaneously transfers materials and lays tracks, improving the time utilization rate of excavation, transportation, and track laying. Tracks are laid using the space between the second transport track wheel and the underside of the first transport vehicle while the excavator is working. Before the excavator moves forward, the track near the track wheel is laid, allowing the excavator to drive the second transport vehicle along the track. This allows the transportation department to transfer materials and lay tracks simultaneously, improving the time utilization rate of excavation, transportation, and track laying, and increasing production efficiency.

[0105] 15. A first conveyor is installed on the first conveying section or on a support for a first conveying trough; a second conveyor is installed on the second conveying section or on a support for a second conveying trough; a tensioning structure is installed at the unloading end of the first conveying section; a right tensioning guide plate, a left tensioning track, a right tensioning track, and a tensioner are included; the left tensioning track supports the left tensioning guide plate, and the right tensioning track supports the right tensioning guide plate; the left and right tensioning guide plates cooperate to support the receiving conveyor belt; the tensioner pulls the left and right tensioning guide plates along the left and right tensioning tracks to move back and forth, tensioning the first conveying section; one end of the first tensioning guide plate is connected to the left tensioning guide plate, and the other end is connected to the right tensioning guide plate. The connecting plate is equipped with a connecting second-transport rotating lug or a connecting second-transport lug through shaft at the lower part of the connecting first-transport tensioning guide plate. When using the connecting second-transport rotating lug, the supporting second-transport trough is equipped with a connecting first-transport lug through shaft that mates with the connecting second-transport rotating lug. Alternatively, when using the connecting second-transport lug through shaft, the supporting second-transport trough is equipped with a connecting first-transport rotating lug that mates with the connecting second-transport lug through shaft. When using a fixed-length conveyor belt type guide trough, the connecting first-transport lug through shaft is directly supported by the fixed-length conveyor belt type guide trough. Or, when using a tensioned conveyor belt type guide trough, the tensioned conveyor belt type guide trough includes a second-transport tensioning structure, which is located at the unloading end or receiving end of the second transport section. The driven shaft is supported at both ends by the second-transport left tensioning guide plate and the second-transport right tensioning guide plate, and the driven shaft supports the receiving conveyor belt. The second conveyor belt's left tensioning track supports the second conveyor belt's left tensioning guide plate, and the second conveyor belt's right tensioning track supports the second conveyor belt's right tensioning guide plate. The second conveyor belt's left and right tensioning guide plates support one end of the receiving conveyor belt. The second conveyor belt's tensioner pulls the second conveyor belt's left and right tensioning guide plates, moving them back and forth along the second conveyor belt's left and right tensioning tracks via a supported driven shaft. The tensioner also pulls the second conveyor belt's left and right tensioning guide plates, causing the driven shaft to move back and forth, thus tensioning the second conveyor section. When the second conveyor belt's tensioning structure is located at the receiving end, one end of the connecting second conveyor belt's tensioning guide plate is connected to the second conveyor belt's left tensioning guide plate, and the other end is connected to the second conveyor belt's right tensioning guide plate. The upper part of the connecting second conveyor belt's tensioning guide plate is equipped with a connecting first conveyor belt's hanging ear or a connecting first conveyor belt's rotating hanging ear. A shaft passing through a connecting lug is inserted into a rotating connecting lug to rotatably connect a first-operating carrier and a second-operating carrier, or a shaft passing through a connecting lug and a connecting lug is inserted into a connecting lug to connect a first-operating carrier and a second-operating carrier. An anti-detachment device is provided on the protruding end of the shaft passing through the connecting lug to prevent the shaft from detaching from the lug hole of the connecting lug. The left driven shaft of the connecting lug is rotatably connected to the left side of the driven shaft, and the right driven shaft of the connecting lug is rotatably connected to the right side of the driven shaft. A rotating connecting beam is located above the left and right driven shafts of the connecting lug. A shaft passing through a connecting lug or a connecting lug is located on the upper part of the rotating connecting beam. The shaft passing through a connecting lug or a connecting lug is rotatably connected to the first material conveying unit.The connecting driven shaft of the second conveyor allows the first and second material conveying sections to rotate rotatably, preventing the first and second material conveying sections from obstructing each other during lifting and lowering. This structural design changes the structure of the connecting two conveyors located below the excavator body, bringing the material receiving end of the second conveyor closer to the unloading end of the first conveyor. This prevents material damage caused by a large height difference between the receiving and unloading ends, and ensures that material does not fall inaccurately into the second conveyor. The rotating lugs of the second conveyor are mounted on the left and right tensioning guide plates of the first conveyor, rotatably connecting the first conveyor's unloading end to the middle of the second conveyor's receiving end. Furthermore, the connecting lugs of the first conveyor are rotatably connected to the rotating lugs of the second conveyor via a through-shaft, ensuring that the material landing point of the first conveyor is aligned with that of the second conveyor when the first conveyor turns. The receiving points are always in optimal coordination, reducing material damage caused by large drops and minimizing material waste due to significant misalignment between the primary and secondary receiving ends. When the primary conveyor tensions the primary conveyor section, material spillage is prevented due to the extension, shortening, swaying, or lifting of the primary conveyor section. Specifically, when connecting the secondary conveyor's rotating lug with the primary conveyor lug located in the upper middle of the secondary conveyor tensioning guide plate, the transfer length of the secondary conveyor is maximized, minimizing material drop errors during loading from the primary to the secondary conveyor. This ensures that the primary and secondary conveyors are always in optimal working order, saving space under the secondary conveyor and facilitating the laying of transport tracks beneath it, thus improving work efficiency in terms of both time and space.

[0106] 16. The three-arc anti-detachment and leakage-blocking component or the double-hole buckle component is equipped with a shaft plate belt meshing mechanism that meshes with the meshing shaft plate belt component. The double-hole buckle component has a front buckle shaft hole and a rear buckle shaft hole, which are respectively buckled on the front and rear belt shafts. Multiple double-hole buckle components are staggered to connect multiple three-arc anti-detachment and leakage-blocking components, and the front three-arc anti-detachment and leakage-blocking components are connected with the rear three-arc anti-detachment and leakage-blocking components to form a buckle tooth conveyor belt. The height of the support guide plate is flush with the upper surface of the buckle tooth conveyor belt or the height of the support guide plate is higher than the upper surface of the buckle tooth conveyor belt. When the height of the support guide plate is flush with the upper surface of the buckle tooth conveyor belt, the bottom of the low-height anti-impact conveyor is set close to the ground so that the material on both sides is smoothly guided into the upper surface of the buckle tooth conveyor belt. When the height of the support guide plate is higher than the upper surface of the buckle tooth conveyor belt, the left support guide plate and the right support guide plate are connected. The guide plate and the upper surface of the toothed conveyor belt form a guide groove. When the support guide plate is higher than the upper surface of the toothed conveyor belt, the lower support plate and the upper guide plate are connected integrally or separately. When the lower support plate and the upper guide plate are connected separately, the lower support plate supports the toothed conveyor belt when loading materials. When loading materials on both sides of the low-height anti-impact conveyor is not required, the upper guide plate is installed on the upper part of the lower support plate. The upper guide plate carries materials over a long distance and connects the left and right support guide plates. The left and right support guide plates are equipped with a support chain structure. The support chain structure and the connecting left and right guide plates are set inside the toothed conveyor belt. The support drive shaft lifts and drives the toothed conveyor belt to roll and rub to transport materials. When using the three-arc side baffle leak-proof component, the three-arc side baffle is equipped with a material-carrying side baffle. The material-carrying side baffle is set on one or both sides of the three-arc side baffle leak-proof component to prevent material leakage on the side of the conveyor belt. The material-carrying side baffle and the three-arc leak-proof component rotate around the drum simultaneously, without generating sliding friction with the material to catch the material. When using the double-hole baffle shaft component, the front and rear double-hole baffle shaft components are set with front and rear arcs, forming an arc sealing surface through the arcs. The front and rear double-hole baffle shaft components have the same thickness. After the front and rear double-hole baffle shaft components are fastened together, they form a baffle with flat sides, preventing material leakage, scraping of the belt, and sliding friction with the material to catch the material. This low-height impact-resistant feeder This invention solves the problem of low-ceilinged lower transfer and feeding spaces in coal mines and other material storage silos, which preclude the installation of feeders with brake structures. This low-height, impact-resistant feeder replaces the traditional feeder guide trough and conveyor belt support base with a guide trough plate. This plate serves both as a material receiving and guiding plate and as a support for all components, saving on feeder height, material usage, and structural design. In particular, the internal toothed conveyor belt houses the drive gear, protecting it from the belt's confinement. This avoids the problems associated with roller chains meshing with gears on the sides of the conveyor belt, which can lead to material leakage through the chain holes and jamming caused by stones, steel rods, etc., disrupting normal feeder operation.This design overcomes the shortcomings of placing the material guide chute inside the conveyor belt drive chain, which resulted in wasted material, large space occupation, and increased manufacturing costs due to the roller chain components being located outside the chute. It also avoids the machining errors caused by manufacturing and assembling the material guide chute separately from the machine base. Furthermore, it addresses the drawbacks of a complex overall structure, large machine height and width, and high labor and time consumption, as well as its space requirements.

[0107] 17. The left and right track components are respectively set on both sides of the connecting left and right track components and fixedly connected to them. The left and right track components are provided with a support slipper track surface, a support track wheel surface, or a fastening gear tooth condition. The support buckle plate belt is set on the left and right track components and supports the support belt rolling component. The support belt rolling component is set in the low rail transport trough. The buckle arc shaft plate belt surrounds the support belt rolling component. The buckle arc shaft plate belt is driven by the drive shaft plate to roll and frictionally transport materials. The buckle front and rear track components are set at the front end and / or rear end of the low rail transport trough. This invention can make the track surface of the low rail trough chain plate machine form an upward convex arc or a downward concave arc for transport without affecting the movement of the coal mining machine, according to the needs of the use site. This solves the problem that the scraper machine must transport in a straight line, which causes the material that does not need to be mined to be mined, which wastes kinetic energy and causes the material to be mined to be mixed with unwanted impurities. It improves the purity of the material to be mined, avoids the waste of manpower and resources in screening impurities, and improves the purity value of the material to be mined.

[0108] 18. Align the front sill side protrusion with the vertical pin hole of the groove sill on the front sill side protrusion. Insert the vertical pin of the groove sill into the vertical pin hole of the groove sill, connecting the front and rear material chute side blocks to form a rotating low-rail transport chute around the vertical pin of the groove sill. The end of the front sill side protrusion has a front protrusion arc and / or the end of the rear sill side protrusion has a rear protrusion arc. When the low-rail transport chute is pushed close to the coal wall to be mined, the front and rear sill side protrusions rotate and bend around the vertical pin of the groove sill. The outer end face of the front and rear protrusion arcs does not exceed the surface of the material chute side block, ensuring that the conveyor belt does not scrape the front sill side block. The structure, including the front and rear side clasps, changes the old method of connecting the front and rear conveyor troughs by using figure-eight buckles or dumbbell pins on the side of the conveyor. Instead, it uses pins to connect the left and right side clasps of the front and rear conveyor troughs from the top, ensuring a firm connection between the front and rear side clasps, reasonable gaps, and flexible lateral rotation. This prevents misalignment of the front and rear side clasps due to lateral pushing, avoids damage to the guide trough end angles caused by misalignment, and prevents chain breakage caused by the guide trough end angles rubbing against the conveyor belt. It ensures a smooth connection at all times.

[0109] 19. The concave bottom arc surface and the convex top arc surface interlock to form a vertical arc-shaped interlocking platform for the trough side rail. When the side rail of the trough rises as needed to excavate the ground at one end, the concave bottom arc surface of the front side rail rotates upward around the convex top arc surface interlocking arc and rises. When the ground tilts downward, the concave bottom arc surface of the front and rear connecting sides rotates downward around the convex top arc surface interlocking arc. This prevents misalignment and unevenness of the upward and downward belt surfaces of the conveyor belt, and avoids left-right misalignment of the side rail of the trough or up-down misalignment of the bottom plate of the trough. This prevents wear and breakage of the conveyor belt caused by the up-down or left-right misalignment of the side rail of the trough or the rubbing against the upper and lower belts of the conveyor belt.

[0110] 20. Connecting front and rear track components extends or shortens the transport length by linking multiple low-rail transport troughs. Three-arc anti-detachment / leakage-blocking components or double-hole buckle components have a shaft plate engagement mechanism that meshes with the meshing shaft plate belt components. Double-hole buckle components have a front buckle hole and a rear buckle hole, which are rotatably connected to the front and rear set belt shafts respectively. Multiple double-hole buckle components are staggered to connect multiple three-arc anti-detachment / leakage-blocking components, connecting the front and rear three-arc anti-detachment / leakage-blocking components to form a toothed transport belt. One end of a detachable material carrier component has a set belt shaft at one end and a detachable belt pin hole or detachable belt screw hole at the other end. The one-end detachable material carrier component includes a belt-passing pin or belt-passing screw. Double-hole buckle components include Z-shaped buckle blind hole plates or figure-eight buckle plates. When using a Z-shaped buckle blind hole plate, the front buckle hole mechanism is in contact with the three-arc sealed material carrier, while the rear buckle hole mechanism is not in contact with the three-arc sealed material carrier. The rear buckle plate hole mechanism prevents the buckle of the previous Z-shaped buckle blind hole plate from falling off. When the Z-shaped buckle blind hole plate is fastened to the three-arc anti-detachment and leak-proof component to form a ring, the threading pin hole is aligned with the disassembly pin hole, and the threading pin is placed in both holes to fix the threading pin on the three-arc sealing material carrier, thus preventing the Z-shaped buckle blind hole plate from falling off the buckle tooth conveyor belt. Alternatively, the threading screw hole is aligned with the disassembly screw hole, and the threading screw is placed in both holes to prevent the Z-shaped buckle blind hole plate from falling off the buckle tooth conveyor belt. The Z-shaped fastener detaches from the toothed conveyor belt. A detachable loading component at one end, combined with a Z-shaped blind hole plate, facilitates quick assembly and disassembly of the toothed conveyor belt to a suitable length within the extended or shortened low-rail conveyor trough, ensuring proper tension and safe transport. This structural invention guarantees proper tension and safe transport of the toothed conveyor belt. This low-rail trough chain conveyor, through the above technology, transforms the old-style scraper conveyor with conveying and track functions into a rolling friction conveyor, avoiding the problems associated with scrapers. The friction damage to the bottom plate reduces power consumption, and the height of the low-rail chain conveyor with transport and track functions is reduced by about 50% compared to the old scraper conveyor. This saves the initial height of the mining tunnel, facilitates the rapid loading of mined materials onto the conveyor belt, and improves material collection efficiency. It avoids the poor structure of the old scraper conveyor, where the high body of the machine body made it difficult for materials to flow naturally into the conveyor, requiring a lot of manual labor to load materials around the scraper into the conveyor belt. The coal mining machine on the track can utilize the height space saved by the low-tooth conveyor belt to increase the height of the machine body, thus turning the small mining power mechanism into a large mining power mechanism, increasing the installed power of the coal mining machine, enhancing the mining performance and efficiency of the mining machine, and changing the defects of the old scraper chain ring hole, which was often blocked by material, and the scraper could not scrape the material on the bottom plate. Because the height of the lower transport section of the coal mining machine is reduced, the performance of the coal mining machine in mining low coal seams is improved, avoiding the waste of mining low coal seams that could not be mined in the past.

[0111] 21. When using grooved connectors for the front and rear rail components, if the front left rail component has a front rail groove, then the rear left rail component has a corresponding rear rail protrusion. The rear rail protrusion is inserted into the front rail groove, and a threaded rod or a pin connecting the left and right rail grooves and protrusions passes through them, thus fixing or rotating the front and rear low rail transport channels together. When the front and rear low-rail transport troughs are fixedly connected, the front rail groove and the rear rail protrusion are connected by a polygonal fastening. When the front and rear low-rail transport troughs are rotatably connected, the front rail groove and the rear rail protrusion are connected by an arc surface. The center of the pin shaft connecting the left and right rail concave and convex parts is the same as the center of the front rail groove and the arc surface of the rear rail protrusion. When the low-rail transport machine used by the mining machine needs to bend up and down with the terrain, the low-rail transport trough rotates around the pin shaft connecting the left and right rail concave and convex parts to form a convex or concave track. The blind hole shaft plate has an internal toothed belt guide groove or a support guide groove or low rail. The pressure plate pulley is set on the upper part of the internal toothed belt guide groove or support guide groove or low-rail transport trough. When the blind hole shaft plate inner toothed belt guide groove, bracket guide groove, or low rail transport groove is connected and bent downward to form a concave surface on the transport belt surface, the rolling friction of the pressure plate pulley prevents the toothed transport belt from detaching upward from the blind hole shaft plate inner toothed belt guide groove, bracket guide groove, or low rail transport groove. The center of the pin shaft connecting the left and right rail concave and convex parts is the same as the center of the front rail groove and the arc surface of the rear rail convex part. When the guide groove climbs up or down the slope, the front rail groove rotates upward or downward around the rear rail convex part. The bolts connecting the left and right material grooves prevent left and right misalignment when the guide groove goes up or down, thus avoiding the problem of the end corner of the guide groove protruding and wearing the transport belt.

[0112] 22. When using a grooved connection for the front and rear supports, the grooved connection includes threaded rods connecting the left and right concave and convex parts or pins connecting the left and right concave and convex parts. If the front support guide plate has a front support groove, the rear support guide plate has a corresponding rear support protrusion. The rear support protrusion is inserted into the front support groove, and the threaded rods or pins connecting the left and right concave and convex parts connect the front support groove and the rear support protrusion, thus fixing or rotating the front support guide groove and the rear support guide groove together. When the current support guide trough and the rear support guide trough are fixedly connected, the front support groove and the rear support protrusion are connected by a polygonal fastening. Alternatively, when the current support guide trough and the rear support guide trough are rotatably connected, the front rail groove and the rear rail protrusion are connected by an arc surface. The center of the pin shaft connecting the left and right concave and convex parts is the same as the center of the front support groove and the arc surface of the rear support protrusion. When the low-height anti-impact conveyor needs to bend up and down with the terrain, the support guide trough rotates around the pin shaft connecting the left and right concave and convex parts to form a convex low-height anti-impact conveyor or a concave low-height anti-impact conveyor. Because this invention uses a ring belt for transportation, it avoids the structure of scraper chain driving scraper to rub against the bottom plate and scrape the material, so that the material does not slide and rub against the surface of the toothed conveyor belt. The up and down movement of the toothed conveyor belt does not affect the material being transported out, avoiding separation. The segmented scraper scrapes material from the support plate in segments, avoiding the defects of material accumulation and overflow from both sides of the conveyor. It avoids the defects of scraper conveyors where material leakage occurs due to gaps between the receiving end, unloading end drive gear roller, driven roller and support plate. Because the toothed conveyor belt is a rigid structure with tightly combined components and driven by wide gear rolling friction, the belt body has a very small elongation rate. After appropriate adjustment, it can be safely operated by gear drive. It changes the sliding friction between the belt and roller of the belt conveyor. The structure relies on strong tension to make the roller drive the belt through strong friction. It avoids the failure of belt conveyor due to excessive tension, which can cause the conveyor belt to break and violently swing due to strong tension, damaging surrounding facilities and causing personal injury.

[0113] 23. The mud-cleaning inlet is located on the side of the inner toothed belt guide trough, support guide trough, or low rail transport trough of the blind hole shaft plate, offset from the supporting roller shaft. The bottom of the mud-cleaning inlet is lower than the lower surface of the toothed conveyor belt. The mud-cleaning inlet allows the mud and water that seeps into the lower part of the toothed conveyor belt to be discharged outside the toothed conveyor belt. The mud-cleaning inlet is equipped with an inner toothed belt monitor. The inner toothed belt monitor monitors the operating status of the toothed conveyor belt and alarms when it detects potential faults. It prompts for maintenance and troubleshooting before a fault occurs. The bottom side of the inner toothed belt guide trough, support guide trough, or low rail transport trough of the blind hole shaft plate includes a mud-water receiving trough, which is located below the mud-cleaning inlet to collect the flowing mud and water. The inner toothed belt guide trough, support guide trough, or low rail transport trough of the blind hole shaft plate includes a belt surface scraper installed on the inner toothed belt of the blind hole shaft plate. The unloading end of the guide chute, support guide chute, or low rail transport chute cleans the upper surface of the toothed conveyor belt to prevent the return material from sticking. The inner ring scraper is set on the upper surface of the lower belt in the blind hole shaft plate inner toothed belt guide chute, support guide chute, or low rail transport chute, and is set close to the detection and cleaning water inlet. The mud and water cleaned by the inner ring scraper flows from the detection and cleaning water inlet to the mud and water collection trough, and cleans and collects the mud and water in the inner ring of the chain belt in a timely manner. The detection and cleaning water inlet discharges the mud and water that seeps into the lower part of the inner toothed conveyor belt outside the inner toothed conveyor belt. The inner toothed belt monitor monitors the operating status of the inner toothed conveyor belt and alarms when it detects potential faults. Before a fault occurs, it prompts maintenance to eliminate the fault, avoiding serious damage to the transport equipment and production losses caused by long-term lack of inspection and maintenance of the inner toothed conveyor belt.

[0114] 24. The Z-shaped buckle connecting plate or double-hole plate arc surface sealing baffle is provided with a front buckle shaft hole and a rear buckle shaft hole. The front buckle shaft hole and the rear buckle shaft hole are respectively buckled on the front and rear belt shafts. The belt shafts pass through the shaft gear roller. The double-hole buckle shaft piece is set between the shaft gear roller and the three-arc sealing material carrier, or the shaft gear roller is close to the three-arc sealing material carrier. The outer side of the shaft gear roller is provided with a double-hole buckle shaft piece. Multiple double-hole buckle shaft pieces are staggered to buckle multiple three-arc anti-detachment and leakage blocking pieces, connecting the front three-arc anti-detachment and leakage blocking piece with the rear three-arc anti-detachment piece. The leak-proof components are connected, and the front three-arc sealed material carrier and the rear three-arc sealed material carrier are separately fastened and sealed. The fastening roller gear directly drives the belt shaft or the belt shaft is equipped with a fastening roller gear. The shaft gear roller drives the rolling friction to convey materials. The belt shaft and the three-arc sealed material carrier are separately connected or integrated. The front shaft hole and the rear shaft hole are fastened to the front belt shaft and the rear belt shaft respectively, so that the belt shaft components are fastened to form a conveyor belt. The fastening roller gear directly drives the belt shaft, which has a simple structure and low manufacturing cost.

[0115] 25. The base plate of the transport trough connects the left and right side frames of the transport trough to form a transport belt trough. An anti-move mechanism for the transport belt is installed on the inner side of the transport trough. The anti-move plate is welded, bolted, or connected to the side frame of the transport trough by a groove. The width of the anti-move plate is greater than that of the connecting transport side components. The rollers and gear rollers are either separate or integrated. When the rollers and gear rollers are integrated, they form a gear roller. The anti-move plate covers the double-hole buckle components on the belt shafts on both sides of the three-arc sealed material carrier and the rollers, or covers the gear rollers. The rollers and gear rollers... The conveyor belt rollers can be configured as separate units or as a single unit. When the belt-passing roller and the gear roller are separate units, the belt-passing roller rolls against the anti-upward movement plate of the conveyor belt, preventing the conveyor belt from moving up and down. The gear roller rolls against the belt shaft when passing the drive gear, preventing the drive gear from damaging the belt shaft. When the belt-passing roller and the gear roller are integrated, they combine to form a single unit, reducing the length of the belt shaft occupied by the separate units. The belt-passing roller also reduces the resistance of sliding friction between the conveyor belt and the lower base plate, protecting the conveyor belt from wear.

[0116] 26. The drive shaft and drive shaft plate gear are either separately engaged or integrated. One or more drive shaft plate gears are installed on the drive shaft. These drive shaft plate gears are located in the middle of the drive shaft, on both sides of the middle of the drive shaft, or at both ends of the drive shaft. The corresponding three-arc anti-detachment and leakage-blocking component is provided with a blind hole with inner teeth on the shaft plate that meshes with the three-arc anti-detachment and leakage-blocking component, or the shaft plate has protruding teeth. The toothed groove gear is provided with an inter-tooth discharge groove and spaced drive teeth. The inter-tooth discharge groove is located between two adjacent spaced drive teeth, enabling the toothed groove gear to have a discharge function. Multiple spaced drive teeth and inter-tooth discharge grooves are provided on one drive shaft plate gear, so that multiple spaced drive teeth arranged laterally in the same row work synchronously. This avoids multiple drive shaft plate gears being separately installed and misaligned when inserted into the blind hole with inner teeth on the shaft plate when driving the same three-arc anti-detachment and leakage-blocking component, which would cause the drive shaft plate gear that is inserted into the blind hole with inner teeth on the shaft plate first to be affected. The independent force applied to the drive gear facilitates the discharge of material or blockages from the blind holes of the shaft plate when the spaced drive teeth are inserted into them. This prevents blockages from obstructing the meshing of the drive gear with the blind holes, ensuring smooth material transport by the conveyor belt and gears. It also enables the toothed gear to have a discharge function. Multiple spaced drive teeth and inter-tooth discharge grooves are installed on a single drive gear, allowing multiple spaced drive teeth to work synchronously. This avoids the situation where multiple drive gears are separately installed and misaligned when inserting into the toothed grooves of the shaft plate, causing damage to the drive gear that inserts first. This also facilitates the discharge of material or blockages from the toothed grooves of the shaft plate when the spaced drive teeth are inserted into them, preventing blockages from obstructing the meshing of the drive gear with the toothed grooves and avoiding production stoppages caused by the conveyor belt detaching from the drive gear.

[0117] 27. The left guide wheel of the drive shaft is located at the left end of the drive shaft, and the right guide wheel is located at the right end of the drive shaft. The guide wheel through-shaft positioning hole is located in the middle of the belt deviation baffle. The guide wheel through-shaft positioning hole is separately connected to the belt deviation baffle or is integrated with it. The drive shaft passes through the guide wheel through-shaft positioning hole. A positioning guide wheel is provided between the drive shaft and the drive shaft guide wheel. The positioning guide wheel is separately attached to the drive shaft guide wheel or is integrated with it. The positioning guide wheel prevents the drive shaft guide wheel from rotating relative to the drive shaft. The drive shaft drives the drive shaft guide wheel to rotate. The left guide wheel of the drive shaft, together with the right guide wheel of the drive shaft, limits the conveyor belt to the position where the drive shaft plate gear can mesh with the three-arc anti-loosening and leak-proof component under the rolling friction with the drive shaft guide wheel, thus minimizing the wear of the meshing belt when it is limited. This design avoids sliding friction between the toothed conveyor belt and the side support of the conveyor trough, saving energy for low-height toothed belt conveyors used in mining machines. The technical solution utilizes Z-shaped fasteners on both sides of the toothed conveyor belt to connect the belt shaft, creating relatively straight sides for the toothed conveyor belt. By cleverly incorporating the internal structure of the drive gear within the toothed conveyor belt, left and right guide wheels are cleverly placed at both ends of the drive shaft. When the toothed conveyor belt reaches the drive shaft position, the left and right guide wheels work together to prevent the conveyor belt from deviating or wearing off-center through rolling friction between them. This clever combination of the limiting wheel and drive shaft results in a simple structure, high guiding strength, strong practicality, safety, reliability, and maintenance-free operation.

[0118] 28. The center of the arc-shaped surface of the arc-shaped anti-detachment and leakage-blocking component coincides with the axis of the drive shaft. When the arc-shaped anti-detachment and leakage-blocking component passes through the drive shaft, the center of the outer circle formed by multiple arc-shaped anti-detachment and leakage-blocking components and the drive shaft plate gear coincides with the center of the drive shaft plate gear. This allows the scraper on the surface of the arc-shaped anti-detachment and leakage-blocking component to stably adhere to the arc-shaped anti-detachment and leakage-blocking component and remove the material on the arc-shaped anti-detachment and leakage-blocking component, preventing the anti-detachment and leakage-blocking component from carrying back material and ensuring that there is no material accumulation obstruction in the conveyor belt.

[0119] 29. The left and / or right anti-roll wheel baffles are located below the upper anti-roll wheel pressure plate. The upper anti-roll wheel pressure plate and the left anti-roll wheel baffle are either separately connected or integrated. The upper anti-roll wheel pressure plate and the right anti-roll wheel baffle are either separately connected or integrated. The left side support of the left transport trough is equipped with a left anti-roll wheel baffle, and the right side support of the right transport trough is equipped with a right anti-roll wheel baffle. The left and right anti-roll wheel baffles work together to limit the left and right movement of the belt with its meshing teeth. The side support of the transport trough is spaced out with supports. The rollers, with a belt storage space formed between them, allow the belt surface to stretch when the toothed belt of the belt assembly runs for an extended period. This storage space causes the belt surface to concave, and the rollers passing through the belt shaft prevent vertical movement. The left and right guide wheels of the drive shaft prevent horizontal movement, eliminating the need for complex tensioner structures at the head and tail of the machine. This ensures smooth operation of the toothed belt driven by the gear meshing of the drive shaft plate and the three-arc anti-slip and leak-proof components. By limiting the up, down, left, and right positions of the rollers on the connecting shaft, the rotation of the rollers around the connecting shaft minimizes the sliding friction between the toothed conveyor belt and the side supports of the conveyor trough during transportation. This reduces running resistance, saves power consumption, and extends service life. It ensures smooth operation of the drive chain plate gear meshing with the load-bearing shaft, driving the arc-resistance anti-disengagement shaft. This addresses the issue of the circular chain scraper and the circular chain being bent and stacked in the flat trough due to chain elongation. Multiple front and rear scrapers are misaligned and tilted due to the bending of the circular chain, causing material to accumulate on the bent chain and stacked scrapers. This results in material accumulation under the scrapers, blockage of the chain, and severe wear on the sides of the scrapers and the scraper trough. This design avoids the huge energy consumption caused by the sliding friction of the circular chain scraper conveyor, avoids the defects of frequent scraper and chain replacements, and reduces downtime losses caused by frequent material transport failures.

[0120] 30. A guide wheel fixing mechanism is provided on the guide chute. The guide wheel fixing mechanism includes upper and lower guide wheel fixing mechanisms and / or guide wheel fixing mechanisms in the chute sill. When the upper and lower guide wheel fixing mechanisms are used, the guide wheel bearings support the guide wheel shafts, and the guide wheel shafts support the rotation of the guide wheels. The upper guide wheel bearings support the upper guide wheel shafts, and the upper guide wheel shafts support the upper guide wheels. The upper guide wheel bearings, upper guide wheel shafts, and upper guide wheels constitute the upper guide wheel assembly. The lower guide wheel bearings support the lower guide wheel shafts, and the lower guide wheel shafts support the lower guide wheels. The lower guide wheel bearings, lower guide wheel shafts, and lower guide wheels constitute the lower guide wheel assembly. The upper guide wheel fixing mechanism and the lower guide wheel fixing mechanism cooperate to fix the upper and lower guide wheel assemblies. The upper guide wheel assembly is set on the upper guide wheel fixing mechanism, and the lower guide wheel assembly is set on the lower guide wheel fixing mechanism. The upper guide wheel assembly provides rolling friction guidance for the upper belt during forward transport, and the lower guide wheel assembly provides rolling friction guidance for the lower belt during reverse transport. The upper guide wheel and lower guide wheel cooperate to guide the rolling friction of the upper and lower belt bodies of the conveyor belt. When using the slotted guide wheel fixed mechanism, the slotted guide wheel fixed mechanism is set in the middle of the left and / or right slots. The slotted guide wheel fixed mechanism has upper and lower guide wheel shaft holes and upper and lower guide wheel shafts. The upper and lower guide wheel shafts pass through the upper and lower guide wheel shaft holes and protrude at both ends. The lower part of the upper and lower guide wheel shafts is connected to the upper part of the lower bearing, the lower guide wheel bearing, and the lower bearing sliding part. The bearing sliding member, in conjunction with the lower end face of the upper and lower guide wheel shaft holes, prevents the lower guide wheel bearing from moving up and down. The upper part of the upper and lower guide wheel shafts connects the upper bearing sliding member, the upper guide wheel bearing, and the upper bearing anti-movement member. The upper bearing anti-movement member and the upper bearing sliding member, in conjunction with the upper end face of the upper and lower guide wheel shaft holes, prevent the upper guide wheel bearing from moving up and down. The upper bearing anti-movement member and the lower bearing sliding member position the upper and lower guide wheel bearings, respectively. The upper and lower guide wheel bearings provide rolling friction guidance for the upper and lower belts of the conveyor belt. When transporting materials, this structure uses the upper and lower guide wheel sets on the guide trough to guide the single-axis buckle arc belt through rolling friction. This effectively prevents the bent conveyor belt from getting stuck and rubbing against the side wall of the guide trough, thus avoiding damage to both the conveyor belt and the guide trough. It also avoids the problem of excessive energy consumption of the motor due to the conveyor belt getting stuck and rubbing against the side wall of the guide trough, and prevents frequent occurrences of motor burnout and conveyor belt breakage caused by motor overload pulling the conveyor belt.

[0121] 31. The upper guide wheel's sliding member is tightly fitted against the inner ring of the upper guide wheel bearing at the lower part of the upper guide wheel bearing. The lower sleeve of the upper guide wheel rotates relative to the upper guide wheel's sliding member on the outside of the upper guide wheel bearing. The upper sleeve of the upper guide wheel rotates relative to the upper guide wheel's sliding member on the outer ring of the upper guide wheel bearing. The upper sleeve of the upper guide wheel and the lower sleeve of the upper guide wheel are fastened and fixed to form a sleeve-type upper guide wheel. The lower end of the upper sliding member of the upper guide wheel is fitted against the upper part of the inner ring of the upper guide wheel bearing. The upper sliding member of the lower guide wheel is tightly fitted against the inner ring of the lower guide wheel bearing at the upper part of the lower guide wheel bearing. The upper sleeve of the lower guide wheel rotates relative to the upper sliding member of the lower guide wheel bearing on the outside of the lower guide wheel bearing. The lower sleeve of the lower guide wheel rotates relative to the lower guide wheel's sliding member on the outer ring of the lower guide wheel bearing. The upper sleeve of the lower guide wheel and the lower sleeve of the lower guide wheel are fastened and fixed to form a sleeve-type lower guide wheel. The sleeve-type upper guide wheel and the sleeve-type lower guide wheel are respectively located at the upper and lower parts of the shaft holes of the upper and lower guide wheels. The shaft passes through the upper guide wheel, the shaft holes of the upper and lower guide wheels, and the lower guide wheel. The upper bearing sliding component, in conjunction with the upper bearing sliding component and the upper end face of the shaft holes of the upper and lower guide wheels, positions the upper guide wheel on the upper part of the shaft. The lower bearing sliding component, in conjunction with the lower bearing sliding component and the lower end face of the shaft holes of the upper and lower guide wheels, positions the lower guide wheel on the lower part of the shaft. The lower guide wheel and the upper guide wheel cooperate to provide rolling friction guidance for the upper and lower belts of the conveyor belt. When the material is transported in a curved material trough formed by the pushed and unpushed sections, the upper and lower guide wheels on the material trough provide rolling friction guidance for the conveyor belt. This effectively prevents the bent conveyor belt from rubbing against the side wall of the material trough, thus avoiding damage to both the conveyor belt and the material trough. It also avoids the problem of excessive energy consumption of the motor due to the conveyor belt rubbing against the side wall of the material trough, and prevents frequent occurrences of motor burnout and conveyor belt breakage caused by motor overload pulling the conveyor belt.

[0122] 32. The guide wheel anti-jump platform and the Z-shaped buckle are either separately connected or integrated, or the guide wheel anti-jump platform and the double-hole plate connecting piece are either separately connected or integrated. The guide wheel anti-jump platform and the upper guide wheel anti-jump belt side-wearing mechanism are offset. The upper guide wheel anti-jump belt side-wearing mechanism prevents the guide wheel anti-jump platform from moving upward, and the guide wheel anti-jump platform prevents the conveyor belt from jumping upward. When the upper guide wheel anti-jump platform runs to the lower part of the conveyor, the anti-drop belt side-wearing mechanism and the guide wheel anti-jump platform are offset, and the anti-drop belt side-wearing mechanism prevents the guide wheel anti-jump platform from moving downward. The guide wheel anti-jump platform prevents the Z-shaped buckle or double-hole plate connecting parts from sliding and rubbing against the guide trough. The guide wheel is positioned from the top of the conveyor belt (where the belt is pressed down) towards the left and right sides of the conveyor belt. By limiting the vertical movement of the Z-shaped buckle or double-hole plate connecting parts, the guide wheel prevents the upper belt from jumping upwards and the lower belt from sagging. This reduces the height from the upper guide wheel surface to the lower guide wheel surface, shortens the guide wheel shaft, reduces lateral force damage to the bearings, and eliminates the need for the upper belt pressing structure and the guide wheel structure supporting the lower belt, thus saving the height of the guide trough. The overall height of the material guide chute of the lower conveyor of the coal mining machine is reduced, thereby decreasing the loading resistance of the side pusher shovel of the lower conveyor. This facilitates the avoidance of top or bottom rocks when mining low-lying coal seams, improving the actual mining efficiency of low-lying coal seams and saving materials used in the conveyor. By using the upper inner upper buckle guide wheel anti-jump platform of the upper resistance side grinding wheel and the lower inner upper buckle guide wheel anti-jump platform that supports the lower belt, the raised edge structure for pressing the upper belt surface wheel on the upper guide wheel and the raised edge structure for pressing the lower belt surface wheel on the lower guide wheel are eliminated. This new structure eliminates the space occupied by the upper and lower guide wheel protrusions in the conveyor, reduces the diameter of the guide wheels, and helps reduce the volume occupied by the side rails of the material chute. This structure positions the conveyor belt through rolling friction from top, bottom, left, and right, preventing the conveyor belt from jumping when climbing uphill. The rolling friction lifts the lower belt, preventing it from sliding and rubbing against the bottom components of the conveyor, thus reducing the resistance caused by sliding friction and protecting the conveyor belt from damage. This saves on maintenance costs, reduces power consumption, and increases the service life of the conveyor.

[0123] 33. The side guide wheels of the feed chute position the upper and lower belts of the conveyor belt vertically and horizontally. The conveyor belt, positioned by the side guide wheels, always maintains a minimum gap with the top of the feed chute side rail to prevent material leakage. Alternatively, a leak-proof cover plate can be installed on the feed chute side rail. The cover plate seal is installed in the leak-proof sealing groove of the cover plate. The cover plate seal seals the gap between the conveyor belt and the leak-proof cover plate. The cover plate seal cooperates with the side guide wheels to effectively seal both sides of the conveyor belt surface to prevent material leakage. This provides all-round leak prevention on the conveyor belt surface, effectively protecting the conveyor belt support, feed chute side guide wheels, etc. from contamination and reducing losses caused by material accumulation in the conveyor belt.

[0124] 34. The guide wheel bearing supports the guide wheel shaft, and the guide wheel shaft supports the rotation of the guide wheel. The upper guide wheel bearing supports the upper guide wheel shaft, and the upper guide wheel shaft supports the upper guide wheel. The upper guide wheel bearing, the upper guide wheel shaft, and the upper guide wheel constitute the upper guide wheel assembly. The lower guide wheel bearing supports the lower guide wheel shaft, and the lower guide wheel shaft supports the lower guide wheel. The lower guide wheel bearing, the lower guide wheel shaft, and the lower guide wheel constitute the lower guide wheel assembly. A guide trough fixing guide wheel mechanism is set on the guide trough. When the upper and lower guide wheel fixing mechanisms of the guide trough are used, the upper guide wheel assembly is set on the guide trough fixing guide wheel mechanism, and the lower guide wheel assembly is set on the lower guide trough fixing guide wheel mechanism. The upper guide wheel assembly provides rolling friction guidance to the upper shaft plate toothed belt, and the lower guide wheel assembly provides rolling friction guidance to the lower shaft plate toothed belt. The cooperation of the upper and lower guide wheel assemblies provides rolling friction guidance to the upper and lower belt bodies of the shaft plate toothed belt, avoiding wear between the conveyor belt and the guide trough, reducing operating friction resistance and operating noise, and improving the service life of the conveyor belt.

[0125] 35. The bottom connector of the guide trough connects the left and right sides of the guide trough. The upper-mounted conveyor belt pulley or the belt-blocking abrasive groove upper wall pulley rotates independently. The upper-mounted conveyor belt pulley and the belt-blocking abrasive groove upper wall pulley are separate or integrated. The outer diameter of the upper-mounted conveyor belt pulley is larger than the outer diameter of the belt-blocking abrasive groove upper wall pulley. The belt-blocking abrasive groove upper wall pulley and the belt-blocking abrasive groove lower wall pulley prevent the conveyor belt from rubbing against the side wall of the guide trough. The upper-mounted conveyor belt pulley prevents the conveyor belt from moving upward. The belt-blocking abrasive groove bottom pulley prevents the lower belt surface of the conveyor belt from sagging and wearing down the bottom connector of the guide trough. This improves the service life of the guide trough, reduces belt breakage caused by wear, and lowers maintenance costs.

[0126] 36. The outer rings or inner rings of the upper or lower guide wheel bearings abut against each other to support the rotation of the guide wheel. Alternatively, a spacer between the upper and lower guide wheel bearings is provided to prevent interference between the upper and lower guide wheel shafts when they rotate in opposite directions. The anti-rollover sleeve of the guide wheel shaft is either separately fastened to the upper guide wheel or is integrated with it. The upper guide wheel is fixed to the upper part of the guide wheel shaft to prevent the conveyor belt from wearing the guide chute. The anti-rollover baffle and the anti-rollover sleeve of the guide wheel shaft cooperate with the guide wheel bearing to prevent the upper guide wheel shaft from rotating up and down. The upper guide wheel shaft positions the upper guide wheel and rotates under the drive of the conveyor belt. The rotation of the upper guide wheel causes rolling friction between the conveyor belt and the upper guide wheel, preventing mutual damage from sliding friction between the conveyor belt and the side wall of the guide trough. The height of the guide wheel bearing retaining ring ensures that the upper guide wheel shaft is not connected to the surrounding structure. The low-height, wear-resistant guide wheel assembly is directly embedded in the guide wheel side hole. The upper part of the guide wheel side hole connects to the upper part of the guide trough, and the lower part connects to the lower part of the guide trough or to the bottom connecting piece of the guide trough, preventing material from moving. Material leaks through the side hole of the guide wheel. The upper and lower guide wheels protrude from the inner side of the guide trough, providing rolling guidance for the conveyor belt. This ensures the width of the track surface under the material collector's slipper, allowing the material collector to smoothly pass along the track surface for continuous material collection. The lower solid part of the side hole of the guide wheel connects to the lower solid part of the guide trough and the bottom plate of the guide trough, preventing material leakage from the side hole. The upper and lower guide wheels protrude from the inner side of the guide trough, providing rolling friction guidance for the conveyor belt. The side hole of the guide wheel does not affect... The structural strength of the guide trough does not affect its various functions. This structural invention ensures the width of the track surface under the material collector's slipper, allowing the material collector to pass smoothly along the track surface for continuous material collection. The lower solid of the guide wheel side hole is connected to the lower solid of the guide trough and the bottom plate of the guide trough, preventing material leakage from the guide wheel side hole. The upper and lower guide wheels protrude from the inner side of the guide trough, and the upper and lower guide wheels provide rolling guidance for the single-axis buckle arc belt. The guide wheel side hole does not affect the structural strength of the guide trough or its various functions.

[0127] 37. The upper bearing sleeve and / or lower bearing sleeve for preventing mud and water corrosion are separate or integrated. The upper bearing sleeve for preventing mud and water corrosion has an upper guide wheel bearing inside its inner hole. The upper bearing sleeve for preventing mud and water corrosion has an upper sealing ring and a lower sealing ring. The upper sealing ring is fitted to the upper guide wheel shaft for sealing and / or to the lower anti-movement retaining sleeve for sealing. The lower sealing ring is fitted to the upper anti-movement retaining plate of the bearing for sealing. The upper and lower sealing rings prevent mud and water from entering the upper guide wheel bearing. The outer side of the upper bearing sleeve for preventing mud and water corrosion is fitted to the guide trough wall, and the guide trough wall positions the bearing sleeve for preventing mud and water corrosion. The upper and lower retaining plates of the snap bearing sleeve cooperate to snap the bearing sleeve for preventing mud and water corrosion and prevent the bearing sleeve from moving up, down, left, or right. The upper and lower guide wheel bearing sleeves include an upper bearing sleeve and a lower bearing sleeve. The upper guide wheel bearing is located inside the upper bearing sleeve. The lower guide wheel bearing is housed within the lower bearing sleeve. A spacer between the upper and lower guide wheel bearings is positioned between them. The upper and lower bearing sleeves are sealed together to prevent mud and water from entering. The upper and lower bearing sleeves abut against the upper stop of the retaining bearing sleeve, and the lower end faces abut against the lower stop of the retaining bearing sleeve. One side of the outer end of the upper and lower guide wheel bearing sleeves is in contact with the end face of the guide wheel fixing mechanism in the material guide chute. The upper and lower stops of the retaining bearing sleeves, along with the sides and rear of the guide wheel fixing mechanism, provide multi-directional fixation to the upper and lower guide wheel bearing sleeves, preventing movement of the upper and lower guide wheel bearings. The upper and lower guide wheel bearings respectively support the upper and lower guide wheel shafts, and their rotation in different directions guides the rolling friction of the upper and lower belts of the conveyor belt.The corresponding guide trough is equipped with an inner arc of the buckle bearing sleeve and a locking bearing sleeve anti-rotation surface. The arc surface of the buckle groove wall is tightly pressed against the inner arc of the buckle bearing sleeve, and the flat surface of the buckle groove wall is tightly pressed against the locking bearing sleeve anti-rotation surface, preventing the bearing sleeve from rotating due to mud and water erosion. The upper and lower guide wheel bearing sleeves effectively shorten the distance between the upper and lower guide wheels, making the upper and lower guide wheels a multi-directional rotator. The multi-directional rotator is small in size, and the upper and lower guide wheel shafts are on the same axis. The upper and lower guide wheel bearing sleeves add clamping force to the upper and lower guide wheel bearings, providing a corrective and positioning force for the upper and lower guide wheel bearings, and accurately positioning the upper and lower conveyor belts through rolling friction. This maximizes the preservation of the guide trough body and eliminates the need for separate wheel shaft seals and lower waterproof sleeves for the upper and lower guide wheels. The ingenious design of the upper and lower guide wheel bearing sleeves avoids the space-consuming structure of sealing the upper and lower guide wheel bearings separately, greatly reducing the height between the upper and lower guide wheels. This allows the upper and lower guide wheels to achieve strong rotation without increasing the height of the conveyor. It effectively guides the conveyor belt in all directions, resulting in low energy consumption, high transport capacity, minimal maintenance, and long service life. This significantly improves the conveyor's safety performance and enables long-term unattended intelligent remote control for efficient production. The upper roller of the conveyor belt and the upper side wall roller of the abrasive groove are integrated, creating a simple and robust structure that prevents both lateral sliding friction and vertical movement of the single-axis buckled arc belt. The upper roller of the conveyor belt, the upper side wall roller of the abrasive groove, the lower side wall roller of the abrasive groove, and the lower conveyor belt... The grinding wheels, in conjunction with the upper and lower belts, provide omnidirectional rolling guidance, effectively preventing mutual damage between the conveyor belt and the guide chute caused by sliding friction between the single-axis buckle arc belt and the upper edge, side, and bottom plate of the guide chute. This significantly reduces the power consumption of the drive motor, lowering it to one-third to one-half of the drive motor power of scraper conveyors of the same length and width. This can save coal mines 1.7 million to 10.5 million yuan in electricity costs annually and 2.1 million to 13 million yuan annually in replacement costs for the ring scraper chain. The structure is simple, compact, and ingenious, occupying little space. It avoids both the reduction in strength of the guide chute body width due to the upper and lower guide wheels and the increase in the guide chute height. The guide chute height of this solution is reduced by two-fifths to two-thirds compared to scraper conveyors, greatly saving material costs and improving space utilization.

[0128] 38. The Z-shaped buckle plate or double-hole plate arc surface sealing stop has a front buckle hole and a rear buckle hole, which are respectively buckled onto the front and rear belt shafts. The belt shaft roller passes through the belt shaft. The double-hole buckle is set between the belt shaft roller and the three-arc sealing material body, or the belt shaft roller is close to the three-arc sealing material body. The double-hole buckle is set on the outside of the belt shaft roller. Multiple double-hole buckle are staggered to buckle multiple three-arc anti-detachment and leakage-blocking parts, connecting the front three-arc anti-detachment and leakage-blocking parts with the rear three-arc anti-detachment and leakage-blocking parts. The arc surface of the front three-arc sealing material body and the rear three-arc sealing material body are separately buckled and sealed. The three-arc anti-detachment and leakage-blocking parts include a mechanism to prevent the buckle plate from falling off or a mechanism to prevent the belt shaft roller from falling off. When the buckle plate falling off mechanism is used, the buckle plate falls off. The mechanism includes either a Z-shaped buckle detachment prevention mechanism or a double-hole coupling plate detachment prevention mechanism. The Z-shaped buckle detachment prevention mechanism includes a staggered Z-shaped fastener and a screw shaft connecting the material carrier body to prevent detachment. The staggered Z-shaped fastener is staggered and fastened by a Z-shaped buckle coupling plate. The Z-shaped buckle coupling plate includes an outer buckle hole and an inner buckle hole, which are staggered to form the Z-shaped buckle coupling plate. The outer buckle hole of the next Z-shaped buckle coupling plate fastens to the outer side of the inner buckle hole of the previous Z-shaped buckle coupling plate, preventing the previous Z-shaped buckle coupling plate from detaching. The screw shaft connecting the material carrier body to prevent detachment includes a Z-shaped buckle screw. Correspondingly, a screw thread hole is provided on the three-arc sealed material carrier body. The outer buckle hole has a screw shaft hole through which the Z-shaped buckle screw passes. The outer and inner buckle holes mate with the threaded holes of the buckle screws to prevent the Z-shaped buckle connecting plates from detaching from the three-arc sealed material carrier. By using Z-shaped buckle screws, the Z-shaped buckles are securely connected to the three-arc sealed material carrier. The Z-shaped buckle screws ensure that the front and rear Z-shaped buckles do not detach from the conveyor belt. After multiple Z-shaped buckles are assembled onto the belt shaft, only one Z-shaped buckle screw needs to be connected to the three-arc sealed material carrier. This allows the front and rear Z-shaped buckles to be connected to the belt shaft, and other Z-shaped buckle connecting plates that do not use Z-shaped buckle screws to both connect the front and rear belt shafts, ensuring the arc surfaces of the front and rear three-arc sealed material carriers are locked and sealed. It also allows multiple Z-shaped buckle connecting plates to be movably connected to the belt shaft and the three-arc sealed material carrier. When it is necessary to push the internal toothed belt conveyor to bend and bring the coal mining machine closer to the coal face, the multiple three-arc anti-detachment devices prevent this. The leak-proof components have no uneven surfaces. When the conveyor is laterally bent, the concave arc of the front three-arc leak-proof components snaps against the convex arc of the rear three-arc leak-proof components, sliding left or right along the convex arc of the rear three-arc leak-proof components. Multiple Z-shaped connecting plates or figure-eight connecting plates, movably connected to the belt shaft, slide to one side along the belt shaft's arc. With the Z-shaped connecting plates or figure-eight connecting plates connecting the belt, the toothed conveyor belt bends at the same angle as the guide trough, achieving curved material transport via the toothed conveyor belt. Limited by the guide wheels on the side of the guide trough, the toothed conveyor belt does not slide or rub against the side wall of the guide trough. Using Z-shaped components instead of connecting plates avoids the need for anti-detachment components at each connecting shaft head, greatly saving manufacturing steps. The structure is simple, the function is reliable, and the number of external anti-detachment components is reduced.With a simple structure, high tensile strength, and clean surface, the Z-shaped buckle anti-dislodgement pin inserts into the anti-Z-shaped buckle anti-dislodgement pin hole to prevent the anti-roller from dislodging. A mechanism to prevent the through-connector shaft roller from dislodging is installed at the end of the through-connector shaft, allowing the through-connector shaft roller to be positioned close to the material carrier, increasing the through-connector shaft's support force and shear resistance.

[0129] 39. When using the anti-roller detachment mechanism, the anti-roller detachment mechanism includes an anti-roller detachment stop pin, an anti-roller detachment Z-shaped buckle, an anti-roller detachment nut, or an anti-roller detachment baffle. When using the anti-roller detachment stop pin, the anti-roller detachment stop pin is located at the outer end of the belt shaft to prevent the roller passing through the belt shaft from detaching. When using the anti-roller detachment Z-shaped buckle, the anti-roller detachment Z-shaped buckle is located outside the roller passing through the belt shaft and at the outer end of the belt shaft. The anti-roller detachment Z-shaped buckle includes an anti-Z-shaped buckle detachment pin. Correspondingly, the anti-roller detachment Z-shaped buckle and the outer end of the belt shaft are provided with anti-Z-shaped buckle detachment pin holes. The anti-Z-shaped buckle detachment pin passes through the anti-Z-shaped buckle detachment pin holes to prevent the anti-roller detachment Z-shaped buckle from detaching. When using the anti-roller detachment nut, the end of the belt shaft is provided with a through-shaft thread that mates with the anti-roller detachment nut. The anti-roller detachment nut, in conjunction with the through-shaft thread, prevents the rollers passing through the belt shaft from detaching.When using a roller detachment baffle, the roller detachment baffle includes a roller detachment baffle pin. Correspondingly, the roller detachment baffle and the belt axle are provided with baffle pin holes. The roller passing through the belt axle is positioned inside the roller detachment baffle, allowing the roller detachment baffle pin to insert into the baffle pin hole to prevent the roller from detaching. The gear drive mechanism includes a three-arc sealed material carrier internal drive mechanism, a double-hole buckling shaft internal drive mechanism, or a drive belt axle mechanism. When using a three-arc sealed material carrier internal drive mechanism, the three-arc sealed material carrier is provided with a shaft plate with internal buckling blind holes or a shaft plate with protruding teeth. The three-arc sealed material carrier internal drive mechanism includes a meshing shaft. The internal gear of the three-arc sealed material carrier body is a blind hole with teeth inside the plate or a toothed shaft plate. The internal gear of the three-arc sealed material carrier body engages with the blind hole with teeth inside the shaft plate, driving the three-arc sealed material carrier body to transport materials. When using the internal drive mechanism of the double-hole shaft fastener, the double-hole shaft fastener is provided with a blind hole groove for the connecting plate or a toothed connecting plate. The internal drive mechanism of the double-hole shaft fastener includes an internal gear of the connecting plate that engages with the blind hole groove or the toothed connecting plate. The internal gear of the connecting plate drives the blind hole groove for the connecting plate to transport materials, or the internal gear of the connecting plate drives the toothed connecting plate to transport materials. When using the drive group with shaft mechanism, the first group with shaft... A drive wheel tooth gap is provided between the drive group and the rear set of belt shafts. The drive group belt shaft mechanism drives the three-arc sealed material carrier to roll and rub to transport materials. This changes the leakage-prone structure defect of the old material transport plate where the sealing surface between the sealing surfaces is linearly connected. It enables a large-area arc surface interlocking seal with high arc surface interlocking seal accuracy, further improving the environmental protection performance and wear resistance of the conveyor belt. It also makes the conveyor belt surface smoother, preventing the conveyor belt from deforming and increasing power consumption due to material jamming. When using the internal drive mechanism of the material carrier body, the material carrier body is equipped with a chain shaft plate with buckle tooth grooves or a chain shaft plate with protruding teeth. The gear-engaging chain shaft plate with buckle tooth groove drives the material carrier to transport materials. This invention utilizes the large width and high structural strength of the material carrier to further increase the driving force of the gear by engaging the material carrier with the wide gear. One or more gear grooves are set at the bottom of the material carrier. The material carrier can be made into a gear roller conveyor belt with a width suitable for on-site use according to the needs of the site. This avoids the material leakage structure of setting drive chains at both ends of the material carrier. The connecting chain plates on both sides also form the conveyor belt surface, increasing the material carrying width of the conveyor belt, saving the width of the conveyor trough, and relatively improving the transportation space and transportation capacity.

[0130] 40. When using the guide wheel slip idler, a support idler is installed on the end face of the upper and lower guide wheel bearing sleeves facing the conveyor belt. The left and right support idlers are respectively installed on the left and right bearing sleeves. One end of the guide wheel slip idler is set on the left support idler and the other end is set on the right support idler. The guide wheel slip idler is pressed against the left and right bearing sleeves. The guide wheel slip idler cooperates with the upper and lower stop plates of the bearing sleeves to prevent the left and right bearing sleeves from moving left, right, up, down, back, and forth. The guide wheel slip idler provides rolling friction support for the conveyor belt and limits the left and right position of the upper and lower guide wheel bearing sleeves relative to the guide trough. This allows the upper and lower guide wheel bearing sleeves to be connected to the side wall of the trough without pins or bolts. When the guide wheel on the side of the guide trough is damaged, the guide wheel slip idler can be removed, allowing the guide wheel on the side of the guide trough to be removed for repair and replacement without obstruction, improving maintenance efficiency and saving maintenance time and labor costs.

[0131] 41. A telescopic guide bracket supports the drive gear assembly, which is connected to the drive power assembly. A telescopic rolling mechanism is located on the telescopic guide bracket and / or below the drive power assembly. When the telescopic rolling mechanism is located on the telescopic guide bracket, one end of the telescopic cylinder is mounted on the conveyor belt frame, and the other end is connected to the telescopic guide plate. Alternatively, one end of the telescopic cylinder is mounted on the conveyor belt frame, and the other end is connected to the drive power assembly. The telescopic cylinder's extension and retraction drive the rolling telescopic drive assembly to reciprocate. When the telescopic rolling mechanism is located on the telescopic guide plate and / or the head telescopic track, the telescopic rolling mechanism supports the telescopic guide bracket, drive gear assembly, and drive power assembly, causing rolling friction extension and retraction to tension the conveyor belt. Or, when the telescopic rolling mechanism is located on the drive power assembly... When the lower part of the assembly is in place, a telescopic roller or a telescopic ball bearing is installed at the lower part of the drive power assembly. The telescopic rolling mechanism supports the telescopic guide bracket, drive gear assembly, and drive power assembly to roll and stretch the conveyor belt for tension. A base plate track that mates with the telescopic roller or telescopic ball bearing is installed on the bottom plate of the pusher conveyor head, or a support rolling element track that mates with the telescopic roller or telescopic ball bearing is installed on the support power assembly seat. When the coal seam height is low and the space is small, a drive part rolling element groove is installed on the bottom plate of the drive power assembly or the pusher conveyor head. When a drive part rolling element groove is installed on the drive power assembly, a corresponding base plate rolling element track is installed on the bottom plate of the pusher conveyor head, and the telescopic ball bearing or telescopic roller is placed in the drive part rolling element groove. The height of the telescopic balls is greater than the rolling element groove of the drive unit. The telescopic balls are positioned between the rolling element groove of the drive unit and the rolling element track of the base plate. The telescopic balls support the telescopic guide bracket, drive gear assembly, and drive power assembly in rolling extension and retraction. When a push plate ball groove is provided on the bottom plate of the conveyor belt head, a corresponding power assembly ball track is provided on the drive power assembly. The telescopic balls are positioned within the push plate ball groove, with the height of the telescopic balls greater than the push plate ball groove. The telescopic balls are positioned between the push plate ball groove and the power assembly ball track. The telescopic balls support the telescopic guide bracket, drive gear assembly, and drive power assembly in rolling extension and retraction to tension the conveyor belt. Alternatively, when using telescopic rollers, the telescopic rollers are positioned at the bottom of the drive power assembly. The telescopic rollers enable the drive... The bottom of the powertrain does not experience sliding friction with the supporting powertrain seat. Instead, the drive powertrain, supported by telescopic rollers, rolls and extends to tension the conveyor belt. When telescopic rollers or ball bearings are positioned at the bottom of the drive powertrain, they support the drive powertrain through rolling friction. Since the drive powertrain of the lower conveyor of a coal mining machine typically weighs over 5 tons, without the support of telescopic rollers or ball bearings, the sliding friction between the drive powertrain and the ground below or the conveyor push plate would make it difficult for the telescopic cylinder to pull the drive powertrain back and forth. To overcome the sliding resistance, the power of the telescopic cylinder itself and its components would be doubled, resulting in a large space requirement for the telescopic cylinder and its power components.This creates difficulties due to insufficient space at the usage site, increases power consumption, and complicates maintenance.

[0132] 42. The high-pressure pipe is supported by the head frame. The high-pressure pipe and the high-pressure nozzle are connected separately or as one piece. The high-pressure pipe is located on the head frame near the blind hole shaft plate gear or near the blind hole shaft plate roller. The blind hole cleaning shaft plate control valve is located at the outlet of the high-pressure pump and is connected to the high-pressure pipe. When it is necessary to clean the blind holes of the shaft plate, the high-pressure pump and the blind hole cleaning shaft plate control valve are started, so that the water sprayed by the water jet cleaning shaft plate can remove the adhering and plated material in the blind holes of the shaft plate without damaging the blind holes of the shaft plate. The blind hole cleaning device removes adhering material from the blind holes of the shaft plate. The jet from the cleaning nozzle is directed towards the blind holes of the shaft plate, while the jet from the cleaning gear nozzle is directed towards the gears or rollers of the shaft plate. The water jet cleaning device utilizes the high water pressure and the ability of water to dissolve coal slime to perform impact cleaning of the blind holes of the shaft plate. It is fast and efficient, and avoids accidents caused by material caking in the blind holes, which prevents the gears of the shaft plate from meshing with the conveyor belt.

[0133] When using the spring-loaded knife cleaner for blind tooth grooves, the spring-loaded knife holder is supported by the machine head frame, and the spring-loaded knife is mounted on the holder. The spring-loaded knife includes a spring-loaded blade that contacts the inner surface of the conveyor belt to remove material adhering to it. The jet from the cleaning nozzle is directed towards the chain gear or the chain roller, ensuring the chain gear grooves, chain gear, or chain roller remain clean, reducing resistance, extending the overall service life of the conveyor belt, and lowering costs. The spring-loaded knife holder, supported by the machine head frame, with its blades contacting the inner surface of the conveyor belt, removes material adhering to it, resulting in a smooth and clean inner surface, reducing material carryover and extending service life.

[0134] 43. When the toothed conveyor belt is loose and requires the removal of some three-arc anti-detachment and leak-proof components before tightening, remove the excess double-hole buckle components and three-arc anti-detachment and leak-proof components. Insert the buckle head shaft hole into the buckle front shaft hole at one end of the toothed conveyor belt that needs to be tightened, and insert the buckle tail shaft hole into the buckle rear shaft hole at the other end of the toothed conveyor belt that needs to be tightened. Rotate the belt tensioning nut to bring the two ends of the toothed conveyor belt closer together. Add one three-arc anti-detachment and leak-proof component or remove one front or rear double-hole buckle component so that the front and rear double-hole buckle components are connected with the three-arc anti-detachment and leak-proof components, so that the toothed conveyor belt is in the optimal operating state. The tensioning belt connector uses a simple structure and a large pulling force to connect the front and rear conveyor belts by tightening the nut. It effectively solves the problems of material leakage and high transport resistance caused by the bending of the belt surface due to excessive length of the toothed conveyor belt. It is easy to operate, has low manufacturing cost, and has a good tensioning effect. It cleverly solves the problem of the difficulty in connecting the two ends of the toothed conveyor belt and improves the efficiency of conveyor belt maintenance.

[0135] 44. The spiral-walking scraping and cleaning device is located between the upper conveyor belt and the lower return belt, or at the lower part of the lower return belt. The anti-scraping and pushing component rotating structure is fixed on the frame groove. The internal thread scraping and cleaning component is located at the lower part of the anti-scraping and pushing component rotating structure, or at the upper part of the anti-scraping and pushing component rotating structure. The anti-scraping and pushing component rotating structure prevents the internal thread scraping and cleaning component from rotating, or the upper conveyor belt and / or the lower return belt prevent the internal thread scraping and cleaning component from rotating. The power screw passes through one side of the frame groove and is threadedly connected to the internal thread scraping and cleaning component. The power screw is supported by the left groove and / or the right groove. The power screw directly rolls and rubs against the left groove and / or the right groove, or one end of the power screw is equipped with a screw bearing, which is directly supported by the frame groove. The screw is indirectly supported by the frame slot or the screw bearing, or the screw bearing is supported by the drive screw component. The power screw is connected to the drive screw component. The frame slot has a discharge hole. The drive screw component is supported by the frame slot or by the frame bottom component. The drive screw component drives the power screw. The power screw rotates in the forward and reverse directions to push the internal thread scraper along the rotating structure of the anti-scraping and pushing component to scrape the material, or the internal thread scraper along the upper conveyor belt to scrape the material, or the internal thread scraper along the lower return belt to scrape the material. This pushes the material between the upper conveyor belt and the lower return belt to the outside of the conveyor. When the spiral scraper is located at the lower part of the lower return belt, the internal thread scraper is located between the frame bottom component and the lower return belt. Between the two parts, the power screw passes through one side of the frame slot and is threadedly connected to the internal thread scraper. The power screw is supported by the left and / or right slots. The drive screw component drives the power screw, and the forward and reverse rotation of the power screw pushes the internal thread scraper to reciprocate along the rotating structure of the anti-scraping pusher, scraping the material between the return belt and the bottom component of the frame out of the conveyor frame. Alternatively, the forward and reverse rotation of the power screw pushes the internal thread scraper to reciprocate along the bottom component of the frame, scraping the material between the return belt and the bottom component of the frame out of the conveyor frame. This technical solution solves the problem of enabling the conveyor belt to withstand strong impact forces when transporting large lumps of minerals such as coal, gangue, iron ore, and gypsum, even if the steel plates of the steel belt do not mesh properly due to wear or other reasons. Even with severe material leakage, it can promptly remove blockages between the upper and lower belts of the steel plate conveyor, ensuring smooth operation. This avoids serious malfunctions such as motor overload and burnout caused by caking of blockages during startup. The structure of the spiral cleaner, which previously had multiple pusher blades fixed to the rotating screw, has been changed to a pusher plate on the rotating screw. This pusher plate is pushed forward and backward by the rotating screw during clockwise and counterclockwise rotation, completely preventing the fatal flaw of the old spiral cleaner where the fixed spiral blades were filled with mud, causing material to caking and forming a cylindrical mud roller, preventing the old spiral cleaner from pushing material outwards. This allows the moving internal spiral scraper to effectively remove material.Under the powerful thrust of the drive screw, clogged and caking materials are pushed out of the conveyor body. The drive screw drives the drive screw, which rotates in both directions, pushing the internal thread scraper along the material collector guide to scrape the material between the return conveyor belt and the bottom frame out of the conveyor frame. The material collector guide is positioned so that the collection port faces the direction of the conveyor belt. The material collector guide collects any leaked material from the conveyor belt, facilitating thorough cleaning of the leaked material by the internal thread scraper. This prevents the leaked material from being carried to the next section of the conveyor body, improving cleaning efficiency.

[0136] 45. The spiral-driven scraping and cleaning device is located between the upper conveyor belt and the lower return belt, or at the bottom of the lower return belt. The collecting guide is fixed to the frame sill, with its collection port facing the direction of the upper conveyor belt. The collecting mechanism is connected to the rotating structure of the anti-scraping and pushing component to form the collecting guide. The internal thread scraping component is located within the collecting guide, preventing its rotation. The power screw passes through one side of the frame sill and is threadedly connected to the internal thread scraping component. The power screw is supported by the left and / or right sills. The frame sill has a discharge hole. The drive screw is supported by the frame sill or by the bottom component of the frame. The drive screw drives the power screw, which rotates in both directions to push the internal thread scraping component back and forth along the collecting guide, scraping and pushing the material between the upper conveyor belt and the lower return belt to the outside of the conveyor. When the scraping and cleaning device is located at the bottom of the return conveyor belt, the material collection guide is positioned between the bottom component of the frame and the return conveyor belt. The internally threaded scraping and cleaning component is located within the material collection guide. The power screw passes through one side of the frame groove and is threadedly connected to the internally threaded scraping and cleaning component. The power screw is supported by the left and / or right grooves. The drive screw component drives the power screw, causing it to rotate forward and backward, pushing the internally threaded scraping and cleaning component to reciprocate along the material collection guide, scraping the material between the return conveyor belt and the bottom component of the frame out of the conveyor frame. Alternatively, the power screw can be supported by the left and / or right grooves. By keeping the power screw in the same position and using power to drive it to rotate forward and backward, the internally threaded scraping and cleaning component threadedly connected to the power screw reciprocates, scraping the accumulated material in the conveyor belt. This allows the clogged material to be discharged through the discharge hole in the frame groove and out of the conveyor. The device features a simple structure, reliable operation, high maintenance-free operation, and excellent scraping and cleaning effect.

[0137] 46. ​​The screw front rotating component is located at the front of the power screw. It scrapes and pushes the material pushed to the front of the power screw by the internal thread scraper, then rotates and pushes it out of the conveyor. When the internal thread scraper only scrapes and pushes material to one side of the conveyor, the screw front rotating component rotates the material pushed to the front of the power screw out of the front of the internal thread scraper, simultaneously removing the material adhering to the front of the internal thread scraper. This causes the internal thread scraper to move backward, pushing the material rotated out by the screw front rotating component towards the rear discharge hole, thus pushing the material accumulated between the upper conveyor belt and the lower return belt out of the conveyor. Alternatively, a screw rear rotating component can be located at the rear of the power screw. When the internal thread scraper runs to the power screw... When the screw reaches the rear end, the rotating part at the rear end of the screw removes the material adhering to the material surface after the internal thread scraper, and rotates the material out of the conveyor. This prevents external materials from entering between the upper conveyor belt and the lower return belt through the discharge hole, or prevents external materials from entering the bottom of the lower return belt. An internal thread scraper is installed between the upper belt of the clamping s...

Claims

A chain conveyor device for preventing jamming in the material passage space of an excavator, characterized in that: The anti-jamming chain conveyor device (1) for the material passage space of the excavator includes a four-arc coaxial anti-loosening structure (8). The four-arc coaxial anti-loosening structure (8) includes a three-arc anti-loosening component (2), a double-hole buckling component (3), and a meshing shaft plate belt component (4). The three-arc anti-loosening component (2) includes an anti-loosening convex arc (501), a belt shaft surface arc (502), and an anti-loosening concave arc (503). The anti-loosening convex arc (501) is located at the front of the three-arc anti-loosening component (2) and is coaxial with the belt shaft surface arc (502). The anti-loosening concave arc (503) is located at the rear of the three-arc anti-loosening component (2) and is coaxial with the anti-loosening convex arc (501) and the belt shaft surface arc (502) of the adjacent next three-arc anti-loosening component (2). The double-hole buckling component (4) is also included. The component (3) is provided with a front axle hole (10) and a rear axle hole (11). The center distance between the front axle hole (10) and the rear axle hole (11) is the same as the center distance between the front belt shaft (96) of the front three-arc anti-detachment and leak-proof component (2) and the rear belt shaft (97) of the rear three-arc anti-detachment and leak-proof component (2). The center line of the front axle hole (10) is the same as the center line of the front belt shaft (96) of the front three-arc anti-detachment and leak-proof component (2). The center line of the rear axle hole (11) is the same as the center line of the rear belt shaft (97). The front axle hole (10) includes the front axle hole arc (578), and the rear axle hole (11) includes the rear axle hole arc (579). The front axle hole arc (578) and the rear axle hole arc (579) are respectively attached to the front axle hole. The front and rear set group belt shaft surface arc (502) tightly connects the front three-arc anti-detachment and leakage blocking component (2) with the rear three-arc anti-detachment and leakage blocking component (2), so that the anti-detachment convex arc (501) and the anti-detachment concave arc (503) arc surface are tightly attached to each other, preventing the anti-detachment concave arc (503) from detaching from the anti-detachment convex arc (501) of the rear three-arc anti-detachment and leakage blocking component (2). The anti-detachment concave arc (503) and the anti-detachment convex arc (501) of the rear three-arc anti-detachment and leakage blocking component (2) that are attached to each other, the group belt shaft surface arc (502) and the buckle shaft hole arc (579) that is engaged with the group belt shaft surface arc (502) are all on the same axis line to form a four-arc coaxial anti-detachment structure (8). The three-arc anti-detachment and leakage blocking component (2) includes a three-arc sealing material body ( 21) and the group belt shaft (9), the anti-loosening concave arc (503) includes the anti-loosening concave arc surface line (13), the anti-loosening convex arc (501) includes the anti-loosening convex arc surface line (14), so that the distance between the center line of the front group belt shaft (96) and the rear group belt shaft (97) is equal to the distance between the center line of the front shaft hole (10) and the rear shaft hole (11), so that the minimum distance between the center line of the front group belt shaft (96) of the front three-arc anti-loosening and leak-proof component (2) and the anti-loosening concave arc (503) surface of the rear three-arc anti-loosening and leak-proof component (2) plus the minimum distance between the center line of the rear group belt shaft (97) of the rear three-arc anti-loosening and leak-proof component (2) and the anti-loosening convex arc (501) surface of the rear three-arc anti-loosening and leak-proof component (2) is the minimum distance between the front and rear anti-loosening and leak-proof arc surface lines (554).The minimum distance between the front and rear anti-disengagement arc surfaces is the same as the distance between the center line of the front buckle hole (10) and the center line of the rear buckle hole (11) of the double-hole buckle shaft (3). The distance between the center lines of the front buckle hole (10) and the rear buckle hole (11) is set as the distance between the center lines of the connecting shaft hole (555). Under the constraint of the distance between the center lines of the connecting shaft hole (555), the minimum distance between the front and rear anti-disengagement arc surfaces (554) makes the center line of the front belt shaft (96) rotate around the center line of the rear belt shaft (97) at equal distances, with the distance between the center lines of the front belt shaft (96) and the center line of the rear belt shaft (97) as the radius. Because the axis of the three-arc anti-loosening and leak-proof component (2) is only one anti-loosening concave arc (503) surface with a minimum anti-loosening concave distance line (556), other anti-loosening concave arc surface lines (557) are arranged on both sides of the minimum anti-loosening concave distance line (556). The other anti-loosening concave arc surface lines (557) include the upper other anti-loosening concave arc surface lines (558) and the lower other anti-loosening concave arc surface lines (559) of the minimum anti-loosening concave distance line. The distance from any of the other anti-detachment concave arc surface lines (557) to the center line of the same group belt shaft (9) is greater than the distance from the minimum distance line of the anti-detachment concave arc surface (556) to the center line of the same group belt shaft (9). The upper other anti-detachment concave arc surface lines (558) prevent the first three arc anti-detachment and leakage blocking parts (2) from detaching downwards from the last three arc anti-detachment and leakage blocking parts (2), and the lower other anti-detachment concave arc surface lines (559) prevent the first three arc anti-detachment and leakage blocking parts (2) from detaching upwards from the last three arc anti-detachment and leakage blocking parts (2). Therefore, in the double hole buckle Under the constraint of the shaft (3), the minimum distance (554) between the front and rear anti-disengagement arc surfaces limits the anti-disengagement concave arc (503) surface of the front three arc anti-disengagement and leakage-blocking component (2) to not disengage from the anti-disengagement convex arc (501) of the rear three arc anti-disengagement and leakage-blocking component (2) and flip away from the buckling arc surface. The anti-disengagement concave arc (503) always runs in contact with the anti-disengagement convex arc (501), so that the front and rear three arc anti-disengagement and leakage-blocking components (2) always run in arc surface contact and sealing, so that multiple front and rear three arc anti-disengagement and leakage-blocking components (2) are connected to form a large arc surface. When the anti-loosening band (504) is engaged, the length of the arc surface where the anti-loosening concave arc (503) and the anti-loosening convex arc (501) engage is greater than the length of the arc surface when the anti-loosening band (504) is engaged with the meshing shaft plate belt (4), the anti-loosening concave arc (503) of the first three arc anti-loosening and leak-proof component (2) engages with the anti-loosening convex arc (501) of the last three arc anti-loosening and leak-proof component (2) and rotates downward around the belt shaft (9) of the last three arc anti-loosening and leak-proof component (2), thus exposing the length of the anti-loosening convex arc segment (560), making the anti-loosening concave arc (503)... The arc surface that engages with the anti-loosening convex arc (501) always has an engaging sealing section (561). The three-arc anti-loosening and leak-blocking component (2) or the double-hole buckling component (3) is provided with a shaft plate belt engagement mechanism (5) that engages with the engagement shaft plate belt component (4). The shaft plate belt engagement mechanism (5) includes a shaft plate inner buckling tooth blind hole (6) or a shaft plate belt convex tooth (7). The buckling front shaft hole (10) and buckling rear shaft hole (11) are respectively buckled on the front and rear belt shafts. Multiple double-hole buckling components (3) are staggered and connected to multiple three-arc anti-loosening and leak-blocking components (2).The front three-arc anti-detachment and leak-blocking component (2) and the rear three-arc anti-detachment and leak-blocking component (2) are connected to form a toothed conveyor belt (12). The three-arc anti-detachment and leak-blocking component (2) includes a single-shaft component (15) or a double-shaft component (16) for carrying materials. The meshing shaft plate belt component (4) includes a blind hole shaft plate gear (17) or a blind hole shaft plate roller (18). The shaft plate belt meshing mechanism (5) meshes with the blind hole shaft plate gear (17) or the blind hole shaft plate roller (18). The blind hole shaft plate gear (17) drives the shaft plate belt meshing mechanism (50). The shaft plate belt meshing mechanism (5) drives the toothed conveyor belt (12) to transport materials. The three-arc anti-detachment and leak-blocking component (2) includes a belt shaft component (19). The belt shaft component (19) is provided with a meshing mechanism with the meshing shaft plate belt component (4). The buckle meshing mechanism (20) meshes with the buckle blind hole shaft plate gear (17). The belt shaft (19) includes a three-arc sealed material carrier (21) and a belt shaft (9). The three-arc sealed material carrier (21) includes a solid three-arc sealed material carrier (22) or a hollow three-arc sealed material carrier (23). The belt shaft (9) and the three-arc sealed material carrier (21) are connected separately or as a whole. The buckle front shaft hole (10) and buckle rear shaft hole (11) respectively buckle the front belt shaft (96) and buckle the rear belt shaft (97) so that the belt shaft (19) is buckled back and forth to form a belt shaft meshing belt (24). The belt shaft meshing belt (24) buckles the meshing shaft plate belt (4) to transport materials by rolling friction. The three-arc anti-loosening and leak-proof component (2) includes a toothed blind hole shaft plate (25), a convex tooth shaft plate (26), or a flat toothed arc shaft plate (27). When the toothed blind hole shaft plate (25) is used, the toothed blind hole shaft plate (25) includes a toothed blind hole (28) at the bottom of the shaft plate. The toothed blind hole shaft plate (25) is provided with a belt shaft (9) at both ends. The double-hole buckling shaft component (3) connects the front and rear belt shafts to make the front and rear toothed blind hole shaft plates (25) into blind hole toothed components. The shaft plate belt (30) and the meshing shaft plate belt component (4) are provided with buckling shaft plate protrusions (31) that engage with the bottom buckling tooth blind hole (28) of the shaft plate. The bottom buckling tooth blind hole (28) of the shaft plate engages with the buckling shaft plate protrusions (31). The meshing shaft plate belt component (4) drives the bottom buckling tooth blind hole (28) of the shaft plate, and the buckling shaft plate protrusions (31) drive the blind hole buckling tooth shaft plate belt (30) to transport materials. The buckling tooth blind hole shaft plate (25) reduces the overall height of the transport section. The anti-jamming chain conveyor device for the material passage space of the excavator according to claim 1 is characterized in that: The toothed shaft plate (26) includes a bottom toothed shaft plate (32). Both ends of the toothed shaft plate (26) are provided with belt shafts (9). A double-hole buckle shaft member (3) is fastened to the belt shaft (9), making the toothed shaft plate (26) a toothed buckle arc shaft plate belt (33). The meshing shaft plate belt member (4) is provided with a buckle shaft plate tooth blind hole groove (34) that engages with the bottom toothed shaft plate (32). The buckle shaft plate tooth blind hole groove (34) meshes with the bottom toothed shaft plate (32). The power component (3) 5) Drive the meshing shaft plate belt (4), the meshing shaft plate belt (4) drives the buckle plate tooth blind hole groove (34), the buckle plate tooth blind hole groove (34) drives the convex tooth buckle arc shaft plate belt (33) to transport materials; when using the flat buckle arc shaft plate (27), the double hole buckle shaft piece (3) includes a blind hole buckle tooth connector (36) or a convex tooth double hole buckle shaft piece (37), the blind hole buckle tooth connector (36) includes a connector buckle tooth blind hole (38), or a convex tooth double hole buckle. The shaft component (37) includes a connecting bottom protrusion (39), and the two ends of the flat buckle shaft plate (27) are provided with a belt shaft (9). The blind hole buckle tooth connector (36) is set on the belt shaft (9) to become a blind hole buckle tooth connector belt (40). The meshing shaft plate belt component (4) is provided with a driving double hole buckle shaft component protrusion (41) that engages with the connecting tooth blind hole (38). The driving double hole buckle shaft component protrusion (41) engages with the connecting tooth blind hole (38) to drive the shaft. The protruding teeth (41) of the moving double-hole buckle shaft component drive the blind hole buckle tooth connecting component belt (40) to transport materials, or the meshing shaft plate belt component (4) is provided with a drive shaft plate component tooth blind hole groove (42) that engages with the bottom protruding teeth (39) of the connecting component, the shaft hole buckle assembly belt (9) of the protruding teeth double-hole buckle shaft component (37) becomes the protruding teeth connecting component belt (43), the meshing shaft plate belt component (4) drives the protruding teeth double-hole buckle shaft component (37), and drives the protruding teeth connecting component belt (43) to transport materials. The anti-jamming chain conveyor device for the material passage space of the excavator according to claim 1 is characterized in that: The belt assembly (19) includes a three-arc sealed single shaft assembly (45) or a three-arc sealed double shaft assembly (46). When the three-arc sealed single shaft assembly (45) is used, the double-hole buckle shaft assembly (3) includes a connecting single shaft plate assembly (47), and the meshing shaft plate belt assembly (4) includes a meshing single shaft plate belt assembly (48). It also includes a power component (35). The meshing single shaft plate belt assembly (48) includes a buckling single shaft plate gear (488) or a buckling single shaft plate roller (49). The three-arc sealed single shaft assembly (45) or the connecting single shaft plate assembly (47) is provided with a single shaft plate belt meshing mechanism (50). The single shaft plate belt meshing mechanism (50) meshes with the buckling single shaft plate gear (488) or The single-shaft plate meshing mechanism (50) meshes with the single-shaft plate roller (49). The three-arc seal single-shaft component (45) includes a three-arc seal material carrier (21) and a belt shaft (9). The three-arc seal material carrier (21) includes a solid three-arc seal material carrier (22) or a hollow three-arc seal material carrier (23). The belt shaft (9) is separately connected to the three-arc seal material carrier (21) or is integrated with it. The single-shaft plate component (47) is provided with a front single-shaft plate hole (51) and a rear single-shaft plate hole (52). The front single-shaft plate hole (51) and the rear single-shaft plate hole (52) respectively fasten the front belt shaft (96) and the rear belt shaft (96). 97) The three-arc sealing single shaft component (45) is connected front and rear to form a three-arc coaxial sealing single shaft plate belt (53). The power component (35) drives the meshing single shaft plate belt component (48). The meshing single shaft plate belt component (48) drives the single shaft plate belt meshing mechanism (50). The three-arc coaxial sealing single shaft plate belt (53) engages with the meshing single shaft plate belt component (48) to roll and rub to transport materials. The three-arc sealing single shaft component (45) includes a toothed blind hole single shaft plate (54) or a toothed single shaft plate (55) or a flat arc-shaped single shaft plate (56). When the toothed blind hole single shaft plate (54) is used, the toothed blind hole single shaft plate (54) includes a single shaft plate bottom tooth. The blind hole (57) and the toothed blind hole single shaft plate (54) are provided with single shaft plate convex shafts (58) at both ends. The single shaft plate component (47) is connected to the front and rear single shaft plate convex shafts (58) so that the toothed blind hole single shaft plate (54) becomes a blind hole toothed single shaft plate belt (59). The meshing single shaft plate belt component (48) is provided with a single shaft plate convex tooth (60) that meshes with the bottom toothed blind hole (57) of the single shaft plate. The bottom toothed blind hole (57) of the single shaft plate meshes with the single shaft plate convex tooth (60). The meshing single shaft plate belt component (48) drives the bottom toothed blind hole (57) of the single shaft plate. The single shaft plate convex tooth (60) drives the blind hole toothed single shaft plate belt (59) to transport materials.When using a planar arc-shaped single-axis plate (56), the connecting single-axis plate component (47) includes a toothed blind hole connecting single-axis component (63) or a toothed connecting single-axis component (64). The toothed blind hole connecting single-axis component (63) includes a toothed blind hole (57) at the bottom of the connecting single-axis plate, and the toothed connecting single-axis component (64) includes a toothed protrusion (65) at the bottom of the connecting single-axis plate. The planar arc-shaped single-axis plate (56) is provided with single-axis plate protrusions (58) at both ends. The toothed blind hole connecting single-axis component (63) is connected to the front and rear single-axis plate protrusions (58) to form a toothed blind hole connecting single-axis plate belt (66). The meshing single-axis plate belt component (48) is provided with a driving single-axis plate protrusion (67) that engages with the toothed blind hole (57) at the bottom of the connecting single-axis plate. The driving single-axis plate protrusion (67) engages with the toothed blind hole (57) at the bottom of the connecting single-axis plate. The hole (57) engages, driving the single-shaft plate convex tooth (67) to drive the buckle tooth blind hole connected to the single-shaft plate belt (66) to transport materials. When using the three-arc sealed double-shaft component (46), the three-arc sealed double-shaft component (46) includes a three-arc sealed material carrier (21) and a three-arc anti-detachment material carrier double shaft (71). The lower part of the three-arc sealed material carrier (21) is provided with a three-arc anti-detachment material carrier buckle tooth blind hole that engages with the meshing shaft plate belt component (4). The double-hole buckle shaft component (3) includes a connecting double-shaft plate component (74). The meshing shaft plate belt component (4) includes a meshing double-shaft plate belt component. The meshing double-shaft plate belt component includes a buckle double-shaft plate gear or a buckle double-shaft plate roller. The buckle double-shaft plate gear engages with the three-arc anti-detachment material carrier buckle tooth blind hole to drive the three-arc sealed double-shaft component (46) to transport materials. The anti-jamming chain conveyor device for the material passage space of the excavator according to claim 1 is characterized in that: The anti-jamming chain conveyor device (1) for the material passage space of the tunneling machine also includes the tunneling machine frame (78) and the shovel receiving plate (79).The rear of the tunneling machine frame (78) is provided with a support meshing shaft plate belt (4) structure. The support meshing shaft plate belt (4) structure supports the meshing shaft plate belt (4) and the power unit (35). The shovel collecting plate (79) is fixedly connected or hinged to the tunneling machine frame (78). The shovel collecting plate (79) is provided with a buckle plate driven member (81) that cooperates with the meshing shaft plate belt (4). The buckle tooth conveyor belt (12) surrounds the meshing shaft plate belt (4) and the buckle plate driven member (81). The power unit (35) drives the meshing shaft plate belt (4) to drive the buckle tooth conveyor belt (12) to rotate around the meshing shaft plate belt (4) and the buckle plate driven member (81). The buckle tooth conveyor belt (12) transports the material collected by the shovel collecting plate (79) to the rear end of the frame. The three arcs prevent detachment and leakage. The upper surface of component (2) or double-hole buckle component (3) includes a material-stopping mechanism (82). The material-stopping mechanism (82) includes a material-stopping long plate (83), a material-stopping round protrusion (84), a material-stopping short plate, a material-stopping tooth, or a material-stopping groove. The material-stopping mechanism (82) prevents material from sliding off the belt shaft component (19) or double-hole buckle component (3). The meshing shaft plate belt component (4) is provided with a blind hole shaft plate belt deviation prevention mechanism (85) on one or both sides. The blind hole shaft plate belt deviation prevention mechanism (85) includes a blind hole shaft plate belt deviation prevention retaining ring (86) or a shaft plate belt deviation prevention wheel (87) or a shaft chain belt deviation prevention platform. The blind hole shaft plate belt deviation prevention retaining ring (86) is movably connected to the meshing shaft plate belt component (4) or is an integral part thereof. The shaft chain plate belt deviation stop and the meshing shaft plate belt component (4) are movably connected or integrated. The deviation stop wheel (87) of the shaft plate belt is set on the tunneling machine body frame (78) or on the shovel receiving plate (79). The deviation stop wheel (87) prevents the toothed conveyor belt (12) from deviating and wearing the tunneling machine body frame (78) or the shovel receiving plate (79). The deviation stop wheel (87) includes a flat anti-deviation wheel or a grooved anti-deviation wheel (88). When the grooved anti-deviation wheel (88) is used, the grooved anti-deviation wheel (88) includes a groove on the outer circumference of the wheel (89). The side of the toothed conveyor belt (12) is embedded in the groove on the outer circumference of the wheel (89). The groove on the outer circumference of the wheel (89) prevents the toothed conveyor belt (12) from jumping up and down, or the tunneling machine body frame (78) or the shovel receiving plate (79) from deviating and wearing. The receiving plate (79) is equipped with a toothed conveyor belt pulley (90). When the bottom of the material trough formed by the receiving plate (79) and the tunneling machine frame (78) is not a straight line, or when the receiving plate (79) is raised and the bottom of the material conveying space of the tunneling machine frame (78) is not a straight line, the toothed conveyor belt pulley (90) prevents the toothed conveyor belt (12) from shifting up and down. The tunneling machine frame (78) is equipped with a pressing engagement mechanism wheel (91) near the meshing shaft plate belt (4). The pressing engagement mechanism wheel (91) is located on the upper part of the toothed conveyor belt (12) at the meshing point of the shaft plate belt meshing mechanism (5) and the meshing shaft plate belt (4), preventing the shaft plate belt meshing mechanism (5) and the meshing shaft plate belt (4) from failing to mesh due to the upward movement of the toothed conveyor belt (12). The anti-jamming chain conveyor device for the material passage space of the excavator according to claim 1 is characterized in that: The anti-jamming conveyor device (1) for the material passage space of the excavator includes a roller (92) and a toothed belt guide groove (93) in the blind hole shaft plate. The toothed belt guide groove (93) in the blind hole shaft plate is integrated with or separate from the main frame (78) of the excavator. The roller (92) is supported by the main frame (78) of the excavator, or by the shovel collection plate (79), or by the toothed belt guide groove (93) in the blind hole shaft plate. The roller (92) includes a roller (94) on the upper side of the shaft plate and / or a roller (95) on the bottom side of the shaft plate. The roller (94) on the upper side of the shaft plate is set between the meshing shaft plate belt (4) and the driven part (81) of the buckling shaft plate, and the rolling friction lifts the material section of the buckling tooth conveyor belt (12). The roller (95) on the bottom side of the shaft plate is set at the lower part of the buckling tooth conveyor belt (12) to prevent the buckling tooth conveyor belt (12) from falling. The anti-jamming chain conveyor device for the material passage space of the excavator according to claim 1 is characterized in that: The anti-jamming chain conveyor device for the material passage space of the excavator includes a multi-directional leak-proof conveyor (102). The multi-directional leak-proof conveyor (102) includes a toothed belt with a shaft assembly (24) and a sealing belt surface guide groove (103). The toothed belt with a shaft assembly (24) includes a three-arc anti-detachment seal (104) and a gear drum (105). The three-arc anti-detachment leak-proof component (2) includes a three-arc anti-detachment sealing groove (106). The three-arc anti-detachment sealing groove (106) is set in the area between the front and rear three-arc anti-detachment leak-proof components (2) when they pass through the gear drum (105). The three-arc anti-detachment sealing groove (106) includes a convex arc surface sealing groove (107) or a concave arc surface sealing groove (108). The three-arc anti-detachment seal (104) is set in the convex arc sealing groove (107) or the three-arc anti-detachment seal (104) is set in the concave arc sealing groove (108) to seal the gap between the three-arc anti-detachment and leakage prevention components (2) to form a three-arc anti-detachment sealing strip (109). The sealing strip surface guide groove (103) includes a guide groove bar (110), a sealing groove cover plate (111) and a material groove cover plate seal (112). The guide groove bar (110) supports the sealing groove cover plate (111). The material groove cover plate seal (112) is set between the sealing groove cover plate (111) and the three-arc anti-detachment sealing strip (109) to prevent material from leaking between the sealing groove cover plate (111) and the three-arc anti-detachment sealing strip (109). The anti-jamming chain conveyor device for the material passage space of the excavator according to claim 1 is characterized in that: The three-arc anti-detachment and leakage blocking component (2) includes a metal three-arc anti-detachment and leakage blocking component (444) or a nylon three-arc anti-detachment and leakage blocking component (445) or a polymer three-arc anti-detachment and leakage blocking component or a plastic three-arc anti-detachment and leakage blocking component. The three-arc anti-detachment and leakage blocking component (2) includes a composite material three-arc anti-detachment and leakage blocking component (113). The composite material three-arc anti-detachment and leakage blocking component (113) includes a metal-plastic three-arc anti-detachment and leakage blocking component (115) or a metal-rubber three-arc anti-detachment and leakage blocking component or a metal-polymer three-arc anti-detachment and leakage blocking component or a ceramic-nylon three-arc anti-detachment and leakage blocking component or a nylon-metal three-arc anti-detachment and leakage blocking component (114) or a ceramic-metal three-arc anti-detachment and leakage blocking component. When using a metal-plastic three-arc anti-detachment and leakage blocking component (115), an injection mold (116) for making the three-arc anti-detachment and leakage blocking component is made. The metal-plastic three-arc anti-detachment and leakage blocking component (115) is made into a three-arc anti-detachment and leakage blocking component. 15) Including a metal belt shaft (452) and a plastic carrier plate (456), the metal belt shaft (452) is positioned in the injection mold (116) of the three-arc anti-detachment and leakage blocking component, so that both ends of the metal belt shaft (452) extend out of the casting plastic area, so that the ends of the metal belt shaft (452) are not covered by plastic, and plastic is cast into the injection mold (116) of the three-arc anti-detachment and leakage blocking component, so that the cast part of the metal belt shaft (452) and the plastic carrier plate (456) become an integral mechanism. The ends of the metal belt shaft (452) are fastened to the connecting shaft belt component (500), so that the metal belt shaft (452) of the metal-plastic three-arc anti-detachment and leakage blocking component (115) bears a strong transport tension, so that the metal belt shaft (452) drives the plastic carrier plate (456) to transport materials. To reduce the weight of the conveyor belt (373) and increase its corrosion resistance, when using a composite material three-arc anti-detachment and leak-proof component (113), the composite material three-arc anti-detachment and leak-proof component (113) includes a high-strength skeleton (117) and a wear-resistant wrapping body (118). The high-strength skeleton (117) includes a belt assembly shaft (9) and a skeleton material carrier (120). The end of the skeleton material carrier (120) is provided with a belt assembly shaft (9). The skeleton material carrier (120) includes an elliptical skeleton material carrier, a trapezoidal skeleton material carrier, a square skeleton material carrier, a circular skeleton material carrier, or a flat irregular skeleton material carrier (121). When using a flat irregular skeleton material carrier (121), the flat irregular skeleton material carrier (121) includes a connecting belt assembly shaft section (122) and a flat The body-carrying section (123) and the connecting belt shaft section (122) are connected at one end to the belt shaft (9) or are integral with it, and at the other end to the flat body-carrying section (123) or are integral with it. The connecting belt shaft section (122) and the flat body-carrying section (123) form the skeleton-carrying component (120). The belt shaft (9) includes a snap-connector belt shaft (505) or a snap-gear belt shaft (506). When the snap-connector belt shaft (505) is used, the snap-connector belt shaft (505) snaps to the double-hole snap-shaft component (3). The skeleton-carrying component (120) is provided with a connecting belt shaft component snap-gear groove (507). The connecting belt shaft component snap-gear groove (507) includes a skeleton snap-gear through hole groove (72) or a skeleton snap-gear blind hole groove. When the skeleton snap-gear through hole groove (72) is used,The skeleton buckle gear through hole groove (72) includes a skeleton flat bottom buckle gear through hole groove (80) or a skeleton positioning table buckle gear through hole groove (574). The meshing shaft plate belt (4) includes a drive composite shaft plate tooth (575) of a meshing composite material three-arc anti-disengagement and leakage blocking component. The height of the drive composite shaft plate tooth (575) is equal to or less than the height of the skeleton buckle gear through hole groove (72). The skeleton positioning table buckle gear through hole groove (574) includes a limiting gear table (576). The limiting gear table (576) restricts the drive composite shaft plate tooth (575) from pushing the wear-resistant wrapping body (118) on the upper part of the skeleton positioning table buckle gear through hole groove (574). The high-strength skeleton (117) includes a flat material plate or a toothed material plate (580). The toothed material plate ( 580) Includes a unidirectional drive structure (581) or a bidirectional drive structure (582). The bidirectional drive structure (582) includes a front tooth drive unit and a rear tooth drive unit. When transporting materials forward, the composite shaft plate teeth (575) engage with the front tooth drive unit (583) to transport materials forward. When transporting materials backward, the composite shaft plate teeth (575) engage with the rear tooth drive unit (584) to transport materials backward. The high-strength skeleton (117) is positioned in the injection mold (116) of the three-arc anti-detachment and leakage prevention component, so that both ends of the assembly belt shaft (9) extend out of the casting wear-resistant coating (118) area, so that the ends of the assembly belt shaft (9) are not wrapped by the wear-resistant coating (118), and are directed towards the injection mold (116) of the three-arc anti-detachment and leakage prevention component. The wear-resistant encapsulation material (118) is poured in. The wear-resistant encapsulation material (118) is made of lightweight material. The wear-resistant encapsulation material (118) is lighter than the high-strength skeleton material (117). This allows the high-strength skeleton (117) of the composite material three-arc anti-detachment and leakage-blocking component (113) to withstand strong transport tension. This allows the meshing shaft plate belt component (4) to drive the connecting belt shaft component to fasten the gear groove (507) to transport materials, reducing the weight of the conveyor belt (373), increasing the corrosion resistance of the conveyor belt (373), and eliminating the material leakage area on the upper part of the gear meshing group belt shaft (9). When using the fastening gear group belt shaft (506), the high-strength skeleton (117) is positioned in the injection mold (116) of the three-arc anti-detachment and leakage-blocking component, so that the fastening gear group belt shaft (506) is... The two ends extend out of the cast wear-resistant encapsulation (118) area, so that the end of the buckling gear set belt shaft (506) is not wrapped by the wear-resistant encapsulation (118). The wear-resistant encapsulation (118) material is poured into the injection mold (116) of the three-arc anti-detachment and leakage blocking part. The wear-resistant encapsulation (118) is made of lightweight material. The wear-resistant encapsulation (118) material is lighter than the high-strength skeleton (117) material. The buckling gear set belt shaft (506) is connected to the meshing shaft plate belt (4) and is provided with a buckling meshing shaft plate belt structure, so that the buckling gear set belt shaft (506) of the composite material three-arc anti-detachment and leakage blocking part (113) can withstand strong transport tension, so that the meshing shaft plate belt (4) drives the buckling gear set belt shaft (506) to transport materials, reducing the weight of the conveyor belt (373).The corrosion resistance of the conveyor belt (373) is increased; the skeleton material carrier (120) includes a front driven body (508) and a rear driven body (509) of the gear slot, the vertical height of the front driven body (508) and / or the rear driven body (509) of the gear slot is less than the lateral width of the front driven body (508) and / or the rear driven body (509) of the gear slot, the shear resistance of the front driven body (508) and the rear driven body (509) of the gear slot is increased, and the thickness of the wear-resistant wrapping (118) is increased. The skeleton material carrier (120) includes a plate-type connecting belt shaft component (511) or a porous encapsulating body connecting belt shaft component (510). When using the porous encapsulating body connecting belt shaft component (510), an encapsulating body hole (512) is provided on the skeleton material carrier (120) to allow the wear-resistant encapsulating body (118) to be injected into the encapsulating body hole (512), thereby enhancing the strength of the skeleton material carrier (120) and the wear-resistant encapsulating body (118), reducing the weight of the skeleton material carrier (120), thinning the belt surface height, and lowering the transport height. The anti-jamming chain conveyor device for the material passage space of the excavator according to claim 1 is characterized in that: The anti-jamming chain conveyor device (1) for the material passage space of the excavator includes a multi-stage rotary loading linkage (73). The multi-stage rotary loading linkage (73) includes a material transfer machine (124) and a rotary connection between the first and second transport units (125). The material transfer machine (124) includes a first transport carrier (126) and a second transport carrier (127). The first transport carrier (126) is supported by the excavator frame, the ground, or a track (166). The lower part of the first transport carrier (126) is directly connected to the ground, or the first transport carrier (126) is equipped with ground wheels (130). The second transport carrier (127) is connected to the first transport unit (125) via a rotary connection between the first and second transport units (125). The transfer machine (126) is connected, and the material transfer machine (124) includes a belt transfer machine (129), a scraper transfer machine, an axle belt transfer machine, a rubber chain belt transfer machine, or a blind hole chain belt internal tooth transfer machine (128). The unloading end of the first transfer machine (126) is movably connected to the subsequent receiving facility to transfer materials. The second transfer machine (127) is supported by the ground or by the rail (166). When supported by the ground, the lower part of the second transfer machine (127) is directly connected to the ground or the lower part of the second transfer machine (127) is provided with ground walking wheels (130). When supported by the rail (166), the lower part of the second transfer machine (127) is provided with rail wheels (131).A rotary connection structure (132) is provided between the second transport carrier (127) and the first transport carrier (126). The second transport carrier (127) includes two transport guide troughs (176). One end of the first transport carrier (126) supports one end of the second transport carrier (127) through the rotary connection structure (132). The other end of the second transport carrier (127) is supported by ground wheels (130) or track wheels (131). When the first transport carrier (126) rises or falls, the tail of the second transport carrier (127) is driven to rise or fall by the first transport carrier (126). The ground-walking wheel (130) or track wheel (131) includes an axle (133). The two transport vehicles (127) rotate around the axle (133) of the ground-walking wheel (130) or around the axle (133) of the track wheel (131) by an angle. Alternatively, the connection between the two transport vehicles (127) and the ground-walking wheel (130) or track wheel (131) is provided with a two-material guide trough connected to the walking wheel component (134). The two-material guide trough connected to the walking wheel component (134) is provided with a two-material guide trough rotating structure (135). When one transport vehicle (126) rises or falls, The secondary transport guide chute (176) rotates around the secondary transport guide chute rotating structure (135) to avoid the secondary transport carrier (127) causing lifting resistance to the primary transport carrier (126). The ground walking wheels (130) or track wheels (131) are equipped with secondary transport guide chute supports (119), which directly support the secondary transport guide chute (176). Alternatively, a guide chute rotating disk (513) is provided between the secondary transport guide chute support (119) and the secondary transport guide chute (176), with the guide chute rotating disk (513) positioned to the left and right of the secondary transport guide chute (176). During the oscillation, the rolling friction support of the secondary transport guide chute (176) rotates left and right. While the excavator is working, a track (166) is laid using the space between the secondary transport track wheel (131) and the lower part of the primary transport carrier (126). Before the excavator moves forward, the track (166) near the track wheel (131) is laid, allowing the excavator to drive the secondary transport carrier (127) along the track (166). This allows the excavator to work while the transport department transfers materials and lays the track (166) simultaneously, improving the time utilization rate of track laying (166) in excavator transport. The anti-jamming chain conveyor device for the material passage space of the excavator according to claim 1 or 8 is characterized in that: A first transporter (126) includes a first transport section (136) and a support for a first transport trough (137); a second transporter (127) includes a second transport section (138) and a support for a second transport trough (139); a rotary connecting first and second transport sections (125) includes a connecting transport component (140) and a connecting transport component (141), wherein the connecting transport component (140) is disposed on the first transport section (136) or on the support for the first transport trough (137), and the connecting transport component (141) is disposed on the second transport section (138) or on the support for the second transport trough (139). The support for the conveying trough (137) includes a conveying tension structure (142), which is located at the unloading end of the first conveying section. The conveying tension structure (142) includes a left conveying tension guide plate (143), a right conveying tension guide plate (144), a left conveying tension track (145), a right conveying tension track (146), and a tensioner (147). The left conveying tension track (145) supports the left conveying tension guide plate (143), and the right conveying tension track (146) supports the right conveying tension guide plate (144). The left tensioning guide plate (143) and the right tensioning guide plate (144) work together to support the material receiving conveyor belt (373). The tensioner (147) pulls the left tensioning guide plate (143) and the right tensioning guide plate (144) to move back and forth along the left tensioning track (145) and the right tensioning track (146) to tension the first material conveying section (136). The connecting component (140) includes a connecting tensioning guide plate component (148), one end of which is connected to the left tensioning guide plate (143). The other end is connected to the first transport right tensioning guide plate (144). The lower part of the first transport tensioning guide plate (148) is provided with a second transport rotating lug (149) or a second transport lug through shaft (150). When the second transport rotating lug (149) is used, the second transport trough (139) is provided with a first transport lug through shaft (161) that cooperates with the second transport rotating lug (149). Or when the second transport lug through shaft (150) is used, the second transport trough (139) is provided with a first transport rotating lug that cooperates with the second transport lug through shaft (150). (162) The supporting two conveyor troughs (139) include a fixed-length conveyor belt type guide trough (151) or a tensioned conveyor belt type guide trough (152). When the fixed-length conveyor belt type guide trough (151) is used, the connecting lug shaft (161) is directly supported by the fixed-length conveyor belt type guide trough (151). When the tensioned conveyor belt type guide trough (152) is used, the tensioned conveyor belt type guide trough (152) includes a two-way tensioning structure (153). The two-way tensioning structure (153) is set at the unloading end of the second conveyor section or the receiving end of the second conveyor section (159).The secondary tensioning structure (153) includes a secondary left tensioning guide plate (154), a secondary right tensioning guide plate (155), a secondary left tensioning track (156), a secondary right tensioning track (157), and a secondary tensioner (158). The driven component (81) of the buckle plate includes a driven shaft, which is supported at both ends by the secondary left tensioning guide plate (154) and the secondary right tensioning guide plate (155). The driven shaft supports the receiving conveyor belt (373). The second-mode left tensioning track (156) supports the second-mode left tensioning guide plate (154), and the second-mode right tensioning track (157) supports the second-mode right tensioning guide plate (155). The second-mode left tensioning guide plate (154) and the second-mode right tensioning guide plate (155) support one end of the receiving conveyor belt (373). The second-mode tensioner (158) pulls the second-mode left tensioning guide plate (154) and the second-mode right tensioning guide plate (155) along the second-mode left tensioning track (156) and the second-mode right tensioning guide plate (155) through the supporting driven shaft. The tensioning track (157) moves back and forth, and the secondary tensioner (158) pulls the left tensioning guide plate (154) and the right tensioning guide plate (155) of the secondary conveyor, causing the driven shaft to move back and forth, thus tensioning the second conveying section (138). When the secondary conveying tensioning structure (153) is set at the receiving end (159), the connecting secondary conveyor (141) includes a connecting secondary conveying tensioning guide plate (160) or a connecting secondary conveying driven shaft (167). One end of the connecting secondary conveying tensioning guide plate (160) is connected to the secondary conveyor. The left tensioning guide plate (154) is connected to the right tensioning guide plate (155) of the second transport. The upper part of the tensioning guide plate (160) of the second transport is provided with a connecting lug through shaft (161) or a connecting rotating lug (162). The connecting lug through shaft (161) of the first transport passes through the connecting rotating lug (149) of the second transport and rotates to connect the first transport carrier (126) and the second transport carrier (127). Alternatively, the connecting rotating lug (162) of the first transport and the connecting lug through shaft (150) of the second transport can be connected. Connecting the first operating machine (126) and the second operating machine (127), the protruding end of the connecting first operating ear through shaft (161) through the connecting second operating rotating ear (149) is provided with a through shaft detachment prevention component (163). The through shaft detachment prevention component (163) prevents the connecting first operating ear through shaft (161) from coming out of the ear hole of the connecting second operating rotating ear (149). The through shaft detachment prevention component (163) includes a detachment cotter pin (164), a detachment through shaft, a detachment nut, a detachment stop (165), or a detachment sleeve pin. The second-phase driven shaft component (167) includes a second-phase left driven shaft component (168), a second-phase right driven shaft component (169), and a rotating connecting beam (170). The second-phase left driven shaft component (168) is rotatably connected to the left side of the driven shaft, and the second-phase right driven shaft component (169) is rotatably connected to the right side of the driven shaft. The rotating connecting beam (170) is located on the upper part of the second-phase left driven shaft component (168) and the second-phase right driven shaft component (169). The upper part of the rotating connecting beam (170) is provided with a first-phase shaft hanging lug (161) or a first-phase rotating hanging lug (162).A connecting lug (161) or a connecting rotating lug (162) is rotatably connected to the first conveying section (136) to rotate left and right. A connecting driven shaft (167) connects the first conveying section (136) and the second conveying section (138) to rotate front and back, so that the first conveying section (136) does not obstruct the second conveying section (138) when it rises or falls. The anti-jamming chain conveyor device for the material passage space of the excavator according to claim 1 is characterized in that: The anti-jamming chain conveyor device (1) for the material passage space of the excavator includes a low-height anti-impact conveyor (171). The low-height anti-impact conveyor (171) includes a support guide trough (172), a three-arc anti-detachment and leakage-blocking component (2), a double-hole buckling shaft component (3), and a meshing shaft plate belt component (4). The three-arc anti-detachment and leakage-blocking component (2) or the double-hole buckling shaft component (3) is provided with a shaft plate belt meshing mechanism (5) that meshes with the meshing shaft plate belt component (4). The shaft plate belt meshing mechanism (5) includes a shaft plate inner buckling tooth blind hole (6) or a shaft plate belt protrusion tooth (7). The three-arc anti-detachment and leakage-blocking component (2) includes a three-arc sealed material carrier (21) and a belt shaft (9). The double-hole buckling shaft component (3) is provided with a buckling front shaft hole (10) and a buckling rear shaft hole (11). The buckling front shaft hole (10) and the buckling rear shaft hole (11) are respectively buckled in On the front and rear belt shafts (97), multiple double-hole buckle pieces (3) are staggered and connected to multiple three-arc anti-detachment and leakage-blocking pieces (2). The front three-arc anti-detachment and leakage-blocking pieces (2) and the rear three-arc anti-detachment and leakage-blocking pieces (2) are connected to form a toothed conveyor belt (12). The support guide trough (172) includes a left support guide plate (173), a right support guide plate (174) and a connecting piece (175) for the left and right guide plates. The height of the support guide plate (177) is flush with the upper surface of the toothed conveyor belt (12) or the height of the support guide plate (177) is higher than the upper surface of the toothed conveyor belt (12). When the height of the support guide plate (177) is flush with the upper surface of the toothed conveyor belt (12), the bottom of the low-height anti-impact conveyor (171) is set close to the ground so that the materials on both sides are smoothly guided into the toothed conveyor belt. 12) Upper belt surface: When the height of the support guide plate (177) is higher than the upper belt surface of the toothed conveyor belt (12), the left support guide plate (173) and the right support guide plate (174) form a guide groove (176) with the upper belt surface of the toothed conveyor belt (12). When the support guide plate (177) is higher than the upper belt surface of the toothed conveyor belt (12), the support guide plate (177) includes a lower support plate (178) and an upper guide plate (179). The lower support plate (178) and the upper guide plate (179) are connected in an integral or separate manner. When the lower support plate (178) and the upper guide plate (179) are connected separately, the lower support plate (178) is used to support the toothed conveyor belt (12) when loading materials. When a low height is not required... When the anti-collision conveyor (171) is loaded on the left and right sides, a guide plate (179) is installed on the upper part of the belt surface support plate (178). The guide plate (179) on the belt surface carries the material over a long distance. The left and right guide plate pieces (175) connect the left support guide plate (173) and the right support guide plate (174). The left support guide plate (173) and the right support guide plate (174) are provided with a support chain structure (180). The support chain structure (180) includes a support roller shaft (181) and / or a support drive shaft (182). The support chain structure (180) and the left and right guide plate pieces (175) are set inside the toothed conveyor belt (12). The support drive shaft (182) lifts and drives the toothed conveyor belt (12) to roll and rub to transport the material.The three-arc anti-detachment and leakage blocking component (2) includes a planar three-arc anti-detachment and leakage blocking component or a side baffle three-arc anti-detachment and leakage blocking component (585), or a double-hole buckle component (3) includes a flat belt double-hole buckle component or a baffle double-hole buckle component (586). When the side baffle three-arc anti-detachment and leakage blocking component (585) is used, the side baffle three-arc anti-detachment and leakage blocking component (585) is provided with a material-carrying side baffle (587). The material-carrying side baffle (587) is set on one or both sides of the side baffle three-arc anti-detachment and leakage blocking component (585) to prevent material leakage on the side of the conveyor belt. The material-carrying side baffle (587) and the three-arc anti-detachment and leakage blocking component (2) rotate around the drum at the same time and do not produce sliding friction with the material. When using a double-hole baffle fastener (586), the double-hole baffle fastener (586) includes a front double-hole baffle fastener (588) and a rear double-hole baffle fastener (589). The front double-hole baffle fastener (588) and the rear double-hole baffle fastener (589) are set with front and rear arcs, forming an arc sealing surface (590) through the arcs. The front double-hole baffle fastener (588) and the rear double-hole baffle fastener (589) have the same thickness. After the front double-hole baffle fastener (588) and the rear double-hole baffle fastener (586) are fastened together, they form a baffle plate with flat sides to prevent material leakage, scraping, and sliding friction with the material. The anti-jamming chain conveyor device for the material passage space of the excavator according to claim 1 is characterized in that... The following is a description of a low-rail conveyor for mining machines (183). The low-rail conveyor for mining machines (183) includes a low-rail transport trough (184), a buckle axle plate belt (185), a belt support rolling element (186), and a drive axle plate assembly (194). The low-rail transport trough (184) includes a left rail component (187), a right rail component (188), a connecting left and right rail components (189), a support buckle plate belt component (190), and a fastening front and rear rail component (191). The left rail component (187) and the right rail component (188) are respectively set on both sides of the connecting left and right rail components (189) and are fixedly connected to the connecting left and right rail components (189). The left rail component (187) and the right rail component (188) are provided with a support slipper track surface (192) or a support track. The wheel surface may be equipped with a buckling gear (193). The supporting buckling plate belt (190) is set on the left rail piece (187) and the right rail piece (188). The supporting buckling plate belt (190) supports the belt roller (186). The belt roller (186) is set in the low rail transport trough (184). The buckling arc shaft plate belt (185) surrounds the belt roller (186). The buckling arc shaft plate belt (185) is driven by the drive shaft plate (194) to roll and frictionally transport materials. The buckling front and rear rail pieces (191) are set at the front end and / or rear end of the low rail transport trough (184). The buckling front and rear rail pieces (191) include rail groove type or insert rail (166) convex type or screw plate connection type or horizontal pin buckle type or figure-eight buckle type or vertical buckle. When using a vertical latching pin type (77), the low rail transport trough (184) includes a front boss arc (521), and the trough side rail (534) includes a front trough side rail (515) and a rear trough side rail (68). The front trough side rail (515) includes a front latching side rail boss (516), and the rear trough side rail (68) includes a rear latching side rail boss. (517) The front buckle side boss (516) and the rear buckle side boss (517) are provided with groove vertical pin holes (518). The material trough side boss (534) includes groove vertical pins (519). The front buckle side boss (516) and the rear buckle side boss (517) are inserted into each other, so that the groove vertical pin of the front buckle side boss (516) and the groove vertical pin of the front buckle side boss (516) are connected. The shaft holes (518) are aligned vertically. The vertical pin (519) of the groove block is inserted into the vertical pin hole (518) of the groove block, connecting the front material trough side block (515) and the rear material trough side block (68) to form a rotating low rail transport trough (520) around the vertical pin of the groove block. The end of the front block fastening side block boss (516) is provided with a front boss arc (521) and / or a rear block fastening side block boss (519). The end of 17) is provided with a rear protrusion arc (522). When the low rail transport trough (184) is pushed close to the coal wall to be mined, the front slab side slab protrusion (516) and the rear slab side slab protrusion (517) rotate and bend around the vertical pin (519) of the trough slab. The outer end face of the front protrusion arc (521) and the outer end face of the rear protrusion arc (522) do not exceed the surface of the trough side slab (534).Ensure that the conveyor belt (373) does not scrape the front sill side boss (516) and the rear sill side boss (517). The front trough side boss (515) includes a bottom flat recess (562) and / or a bottom arc recess (563). When the bottom arc recess (563) is used, the corresponding rear trough side boss (68) boss includes a top arc protrusion (564). The bottom arc recess (563) and the top arc protrusion (564) are engaged to form a vertical arc fastening platform (565) of the trough side boss. When the trough side boss (534) rises as needed to excavate one end of the ground, the bottom arc recess (563) of the front trough side boss (515) rotates around the top arc protrusion (564) in an arc. When the steering wheel is raised and the ground tilts downward, the concave bottom arc surface (563) of the front material trough side block (515) rotates downward around the convex top arc surface (564); the connecting front and rear track components connect multiple low rail transport troughs (184) to extend or shorten the transport length. The arc-shaped shaft plate belt (185) includes a three-arc anti-detachment and leakage-blocking component (2), a double-hole shaft fastening component (3), and a meshing shaft plate belt component (4). The three-arc anti-detachment and leakage-blocking component (2) or the double-hole shaft fastening component (3) is provided with a shaft plate belt meshing mechanism (5) that meshes with the meshing shaft plate belt component (4). The shaft plate belt meshing mechanism (5) includes a shaft plate inner tooth blind hole (6) or a shaft plate belt convex tooth (7). The three-arc anti-detachment and leakage-blocking component (2) includes a three-arc sealing material carrier (21) and a belt shaft (9). The double-hole buckle component (3) is provided with a front buckle shaft hole (10) and a rear buckle shaft hole (11). The front buckle shaft hole (10) and the rear buckle shaft hole (11) are respectively rotated and buckled on the belt shaft (9) set at the front and rear. Multiple double-hole buckle components (3) are staggered and buckled multiple three-arc anti-detachment and leakage-blocking components (2). The front three-arc anti-detachment and leakage-blocking component (2) and the rear three-arc anti-detachment and leakage-blocking component (2) are connected to form a toothed conveyor belt (12). The three-arc anti-detachment and leakage-blocking component (2) includes a two-end shaft-type material carrier or a one-end detachable material carrier (195). The one-end detachable material carrier (195) 5) One end is provided with a belt shaft (9) and the other end is provided with a disassembly belt pin hole (196) or a disassembly belt screw hole. The one-end disassembly type material carrier (195) includes a through belt pin (198) or a through belt screw. The double-hole buckle shaft component (3) includes a Z-shaped buckle blind hole plate (200) or an 8-shaped buckle shaft plate. When using the Z-shaped buckle blind hole plate (200), the Z-shaped buckle blind hole plate (200) includes a buckle front shaft hole mechanism (201) and a buckle rear shaft hole mechanism (202). The buckle front shaft hole mechanism (201) is attached to the three-arc sealed material carrier (21), while the buckle rear shaft hole mechanism (202) is not attached to the three-arc sealed material carrier (21). The rear buckle plate hole mechanism prevents the buckle front hole mechanism (201) of the previous Z-shaped buckle blind hole plate (200) from falling off. The double hole buckle plate (3) includes a rotating docking fastener (203), which includes a through-hole pin hole (204) or a through-hole screw hole (205). When the Z-shaped buckle blind hole plate (200) buckles with the three-arc anti-loosening and leak-proof component (2) to form a ring,Align the detachable belt pin hole (204) with the detachable belt pin hole (196), and place the belt pin (198) in both holes to fix the belt pin (198) on the three-arc sealed material carrier (21). This prevents the belt pin (198) from falling off the Z-shaped buckle blind hole plate (200) from the toothed conveyor belt (12). Alternatively, align the detachable belt screw hole (205) with the detachable belt screw hole, and place the belt screw in both holes to prevent the Z-shaped fastener from falling off the toothed conveyor belt (12). The one-end detachable material carrier (195) cooperates with the Z-shaped buckle blind hole plate (200) to facilitate the quick assembly and disassembly of the toothed conveyor belt (12) to a suitable length within the extended or shortened low rail transport trough (184), ensuring that the toothed conveyor belt (12) is properly tensioned for safe transport. The anti-jamming chain conveyor device for the material passage space of the excavator according to claim 1 or 11 is characterized in that... The front and rear rail components (191) include a groove-type front and rear rail component (206), and the low rail transport trough (184) includes a front low rail transport trough (207) and a rear low rail transport trough (208). When the groove-type front and rear rail component (206) is used, the groove-type front and rear rail component (206) includes a threaded rod (209) connecting the left and right rail protrusions and concave parts or a pin (212) connecting the left and right rail protrusions and concave parts. The front left rail component (187) is equipped with... If there is a front rail groove (210), then a corresponding rear rail protrusion (211) is provided on the rear left rail component (187). The rear rail protrusion (211) is inserted into the front rail groove (210), and the left and right rail concave-convex component screws (209) or the left and right rail concave-convex component pins (212) are connected to the front rail groove (210) and the rear rail protrusion (211), so that the front low rail transport groove (207) and the rear low rail transport groove (208) are fixedly connected or rotatably connected. When the front low rail transport trough (207) and the rear low rail transport trough (208) are fixedly connected, the front rail groove (210) and the rear rail protrusion (211) are connected by a polygonal fastening. When the front low rail transport trough (207) and the rear low rail transport trough (208) are rotatably connected, the front rail groove (210) and the rear rail protrusion (211) are connected by an arc surface. The center of the pin (212) connecting the left and right rail concave and convex parts is the same as the center of the arc surface of the front rail groove (210) and the rear rail protrusion (211). When the low rail transport machine (183) of the mining machine needs to bend up and down with the terrain, the low rail transport trough (184) rotates around the pin (212) connecting the left and right rail concave and convex parts to form a convex track (213) or a concave track (214). The blind hole shaft plate inner toothed belt guide groove (93) or bracket guide groove (172) or low rail transport groove (184) includes a pressure plate pulley (225). The pressure plate pulley (225) is set on one or both sides of the upper part of the blind hole shaft plate inner toothed belt guide groove (93) or bracket guide groove (172) or low rail transport groove (184). When the blind hole shaft plate inner toothed belt guide groove (93) or bracket guide groove (172) or low rail transport groove (184) is connected and bent downward to form a concave surface on the surface of the transport belt (373), the pressure plate pulley (225) rolls and rubs to prevent the toothed transport belt (12) from moving upward away from the blind hole shaft plate inner toothed belt guide groove (93) or away from the bracket guide groove (172) or away from the low rail transport groove (184). The anti-jamming chain conveyor device for the material passage space of the excavator according to claim 1 or 10 is characterized in that... The low-height anti-collision transport machine (171) includes a front and rear support guide plate (215) for fastening the front and rear supports. The front and rear support guide plate (215) includes a groove-type front and rear support member (216) or a plate-connected front and rear support member (217). When the groove-type front and rear support member (216) is used, the groove-type front and rear support member (216) includes a threaded screw (218) for connecting the left and right concave and convex parts or includes a pin for connecting the left and right concave and convex parts. The front support guide plate (171) includes a groove-type front and rear support member (217) for fastening the front and rear supports. 77) If a front support groove (219) is provided, then a rear support protrusion (220) is provided on the rear support guide plate (177) accordingly. The rear support protrusion (220) is inserted into the front support groove (219), and the left and right concave and convex screws (218) or the left and right concave and convex pins are connected to the front support groove (219) and the rear support protrusion (220), so that the front support guide groove (221) and the rear support guide groove (222) are fixedly connected or rotatably connected. When the current support guide groove (221) and the rear support guide groove (222) are fixedly connected, the front support groove (219) and the rear support protrusion (220) are connected by a polygonal fastening. Or when the current support guide groove (221) and the rear support guide groove (222) are rotatably connected, the front rail groove (210) and the rear rail protrusion (211) are connected by an arc surface. The center of the pin shaft connecting the left and right concave and convex parts is the same as the center of the arc surface of the front support groove (219) and the rear support protrusion (220). When the low-height anti-collision transport machine (171) needs to bend up and down with the terrain, the support guide groove (172) rotates around the pin shaft connecting the left and right concave and convex parts to form a convex low-height anti-collision transport machine (171) or a concave low-height anti-collision transport machine (489). The anti-jamming chain conveyor device for the material passage space of the excavator according to claim 1 is characterized in that... The blind hole shaft plate inner toothed belt guide groove (93), or bracket guide groove (172), or low rail transport groove (184) includes a detection and cleaning water inlet (223). The detection and cleaning water inlet (223) is set on the side of the blind hole shaft plate inner toothed belt guide groove (93), or bracket guide groove (172), or low rail transport groove (184) and is offset from the support roller shaft (181). The bottom of the detection and cleaning water inlet (223) is lower than the lower surface of the toothed conveyor belt (12). The maintenance and cleaning water inlet allows the water to seep into the toothed conveyor belt. The mud and water at the bottom of the toothed conveyor belt (12) are discharged outside the toothed conveyor belt (12). The mud and water inlet (223) is equipped with an internal toothed belt monitor (229). The internal toothed belt monitor (229) monitors the operating status of the toothed conveyor belt (12) and alarms when it finds a potential fault. Before the fault occurs, it prompts for maintenance to eliminate the fault. The bottom side of the blind hole shaft plate internal toothed belt guide groove (93) or bracket guide groove (172) or low rail transport groove (184) includes a mud and water receiving groove (224). The mud and water flowing out are collected at the lower part of the detection mud and water inlet (223). The blind hole shaft plate inner toothed belt guide groove (93), the bracket guide groove (172), or the low rail transport groove (184) includes a scraper (226) including a surface scraper (227) and / or an inner ring scraper (228). The surface scraper (227) is set at the unloading end of the blind hole shaft plate inner toothed belt guide groove (93), the bracket guide groove (172), or the low rail transport groove (184), and is fastened to the inner ring. The upper surface of the toothed conveyor belt (12) is cleaned to prevent the return material from sticking. The inner ring scraper (228) is set on the upper surface of the lower belt in the toothed belt guide groove (93) inside the blind hole shaft plate, or in the support guide groove (172), or in the low rail conveyor groove (184), and is set close to the detection mud cleaning port (223) so that the mud and water cleaned by the inner ring scraper (228) flows from the detection mud cleaning port (223) to the mud and water receiving trough (224), and the mud and water in the inner ring of the chain belt are cleaned and collected in time. The anti-jamming chain conveyor device for the material passage space of the excavator according to claim 1 is characterized in that: The aforementioned anti-jamming chain conveyor for the excavator material passage space includes a low-height anti-jamming chain conveyor (230) for the excavator. The low-height anti-jamming chain conveyor (230) for the excavator includes a three-arc anti-detachment and leakage-blocking component (2), a double-hole buckle shaft component (3), and a shaft gear roller (231). The three-arc anti-detachment and leakage-blocking component (2) includes a three-arc sealed material carrier (21) and a belt shaft (9). The double-hole buckle shaft component (3) includes a Z-shaped buckle connecting shaft plate component (233) or a double-hole plate arc surface sealing material stop component (234). The Z-shaped buckle connecting shaft plate component (233) or The double-hole plate arc surface sealing baffle (234) is provided with a front shaft hole (10) and a rear shaft hole (11). The front shaft hole (10) and the rear shaft hole (11) are respectively fastened to the front and rear belt shafts. The belt shaft (9) passes through the shaft gear roller (231). The double-hole shaft fastener (3) is set between the shaft gear roller (231) and the three-arc sealing material carrier (21), or the shaft gear roller (231) is close to the three-arc sealing material carrier (21). The double-hole shaft fastener (3) is set on the outside of the shaft gear roller (231). Multiple double-hole shaft fasteners are provided. (3) Multiple three-arc anti-detachment and leak-proof components (2) are staggered and connected. The front three-arc anti-detachment and leak-proof component (2) is connected to the rear three-arc anti-detachment and leak-proof component (2). The front three-arc sealing material carrier (21) and the rear three-arc sealing material carrier (21) are sealed by separate arc surfaces. The three-arc anti-detachment and leak-proof component (2) includes a single-shaft material carrier (15) or a double-shaft material carrier (16). The roller gear directly drives the belt shaft (9) or sets the roller gear on the belt shaft (9). The shaft gear roller (231) drives the rolling friction conveyor of the material. The three-arc anti-detachment and leak-proof component ( 2) Includes a belt assembly (19), which includes a three-arc sealed material carrier (21) and a belt assembly (9). The three-arc sealed material carrier (21) includes a solid three-arc sealed material carrier (22) or a hollow three-arc sealed material carrier (23). The belt assembly (9) and the three-arc sealed material carrier (21) are connected separately or as a single unit. The front shaft hole (10) and the rear shaft hole (11) are fastened to the front belt assembly (96) and the rear belt assembly (97) respectively, so that the belt assembly (19) is fastened to form a conveyor belt (373). The anti-jamming chain conveyor device for the material passage space of the excavator according to claim 1 or 16 is characterized in that: The aforementioned anti-jamming chain conveying device for the material passage space of the excavator includes a low-height anti-jamming chain roller conveyor (236) for the excavator. The low-height anti-jamming chain roller conveyor (236) for the excavator includes a three-arc anti-detachment and leakage-blocking component (2), a double-hole buckle shaft component (3), a roller with a shaft (237) and a gear drive mechanism (238). The roller with a shaft (237) and the shaft gear roller (231) are either separately set or integrated. The three-arc anti-detachment and leakage-blocking component (2) includes a three-arc sealed material carrier (21) and a belt shaft (9). The double-hole buckle shaft component (3) includes a Z-shaped buckle connecting shaft plate (233) or a double-hole plate arc surface sealing material stop component (234). The Z-shaped buckle connecting shaft plate (233) or the double-hole plate arc surface sealing material stop component (234) is provided with a buckle front shaft hole. (10) and the rear shaft hole (11), the front shaft hole (10) and the rear shaft hole (11) are fastened to the front and rear belt shafts respectively, the belt shaft roller (237) is passed through the belt shaft (9), the double hole fastening shaft piece (3) is set between the belt shaft roller (237) and the three-arc sealing material body (21), or the belt shaft roller (237) is close to the three-arc sealing material body (21), the double hole fastening shaft piece (3) is set on the outside of the belt shaft roller (237), multiple double hole fastening shaft pieces (3) are staggered to fasten multiple three-arc anti-detachment and leakage blocking pieces (2), the front three-arc anti-detachment and leakage blocking piece (2) is passed through to the rear three-arc anti-detachment and leakage blocking piece (2), the front three-arc sealing material body (21) and the rear three-arc sealing material body (21) are separately fastened and sealed by the arc surface, the three-arc anti-detachment and leakage blocking piece (21) is fastened and sealed by the arc surface. The leak-proof component (2) includes a mechanism for preventing the coupling plate from falling off (239) or a mechanism for preventing the roller from falling off the shaft assembly (240). When the mechanism for preventing the coupling plate from falling off (239) is used, the mechanism for preventing the coupling plate from falling off (239) includes a mechanism for preventing the Z-shaped buckle from falling off (241) or a mechanism for preventing the double-hole coupling plate from falling off (242). The mechanism for preventing the Z-shaped buckle from falling off (241) includes a staggered Z-shaped buckle (243) and a screw shaft connecting material body anti-fall structure (244). The staggered Z-shaped buckle (243) is staggered and fastened by the Z-shaped buckle coupling plate (233). The Z-shaped buckle coupling plate (233) includes an outer buckle hole (245) and an inner buckle hole (246). The outer buckle hole (245) and the inner buckle hole (246) (246) The misaligned arrangement forms a Z-shaped buckle connecting plate (233). The outer buckle hole (245) of the next Z-shaped buckle connecting plate (233) is fastened to the outer side of the inner buckle hole (246) of the previous Z-shaped buckle connecting plate (233) to prevent the previous Z-shaped buckle connecting plate (233) from falling off. The screw shaft connecting material body anti-detachment structure (244) includes a through Z-shaped buckle screw (247). Correspondingly, a buckle screw thread hole (248) is provided on the three-arc sealed material body (21). The outer buckle hole (245) is provided with a buckle screw shaft hole (249). The through Z-shaped buckle screw (247) passes through the outer buckle hole (245) and the inner buckle hole (246) and engages with the buckle screw thread hole (248).To prevent the Z-shaped buckle connecting plate (233) from falling off the three-arc sealed material carrier (21); when using the anti-piercing assembly shaft roller detachment mechanism (240), the anti-piercing assembly shaft roller detachment mechanism (240) includes an anti-roller detachment stop pin (250) or an anti-roller detachment Z-shaped buckle or an anti-roller detachment nut or an anti-roller detachment baffle. When using the anti-roller detachment stop pin (250), the anti-roller detachment stop pin (250) is set at the outer end of the assembly shaft (9) to prevent the roller (237) from falling off. When using the anti-roller detachment Z-shaped buckle, the anti-roller detachment Z-shaped buckle is set outside the roller (237) and at the outer end of the assembly shaft (9). The anti-roller detachment Z-shaped buckle includes an anti-Z-shaped buckle detachment pin. The corresponding anti-roll wheel detachment Z-shaped buckle and the outer end of the belt shaft (9) are provided with anti-roll wheel detachment pin holes. The anti-roll wheel detachment pin is inserted into the anti-roll wheel detachment pin hole to prevent the anti-roll wheel detachment Z-shaped buckle from detaching. When the anti-roll wheel detachment nut is used, the end of the belt shaft (9) is provided with a through-shaft thread that cooperates with the anti-roll wheel detachment nut. The anti-roll wheel detachment nut cooperates with the through-shaft thread to prevent the roller (237) through the belt shaft from detaching. When the anti-roll wheel detachment baffle is used, the anti-roll wheel detachment baffle includes an anti-roll wheel detachment baffle pin. The corresponding anti-roll wheel detachment baffle and the belt shaft (9) are provided with baffle pin shaft holes. The roller (237) through the belt shaft is placed inside the anti-roll wheel detachment baffle, so that the anti-roll wheel detachment baffle pin is inserted into the baffle pin shaft hole to prevent the roller (237) from detaching. The roller (237) with shaft is dislodged; the gear drive mechanism (238) includes a three-arc sealed material carrier internal drive mechanism (255) or a double-hole buckling shaft part (3) internal drive mechanism or a drive group with shaft (9) mechanism. When the three-arc sealed material carrier internal drive mechanism (255) is used, the three-arc sealed material carrier (21) is provided with a shaft plate inner buckling blind hole (6) or a shaft plate with a toothed protrusion (7). The three-arc sealed material carrier internal drive mechanism (255) includes a three-arc sealed material carrier internal gear (258) that engages with the shaft plate inner buckling blind hole (6) or the shaft plate with a toothed protrusion (7). The three-arc sealed material carrier internal gear (258) engages with the shaft plate inner buckling blind hole (6) to drive the three-arc sealed material carrier (21) to transport materials. When using When the double-hole buckle member (3) has an internal drive mechanism, the double-hole buckle member (3) is provided with a blind hole groove for the buckle teeth of the connecting plate or with a convex tooth of the connecting plate. The internal drive mechanism of the double-hole buckle member (3) includes an internal gear (260) of the connecting plate that meshes with the blind hole groove for the buckle teeth of the connecting plate or with the convex tooth of the connecting plate. The internal gear (260) of the connecting plate drives the blind hole groove for the buckle teeth of the connecting plate to transport materials, or the internal gear (260) of the connecting plate drives the convex tooth of the connecting plate to transport materials. When the drive group belt shaft (9) mechanism is used, there is a gap (261) for inserting drive wheel teeth between the first group belt shaft (9) and the second group belt shaft (9). The drive group belt shaft (9) mechanism drives the belt shaft (9) to make the three-arc sealed material carrier (21) roll and rub to transport materials. The anti-jamming chain conveyor device for the material passage space of the excavator according to claim 1 is characterized in that: The meshing single-shaft plate belt component (48) includes a drive shaft (277) and a drive shaft plate gear (278). The drive shaft (277) and the drive shaft plate gear (278) are either separately engaged or integrated. One or more drive shaft plate gears (278) are provided on the drive shaft (277). The drive shaft plate gears (278) are located in the middle of the drive shaft (277), on both sides of the middle of the drive shaft (277), or at both ends of the drive shaft (277). The corresponding three-arc anti-disengagement and leakage blocking component (2) is provided with a shaft plate inner tooth blind hole (6) or a shaft plate with a toothed protrusion (7) that meshes with the three-arc anti-disengagement and leakage blocking component (2). The drive shaft plate gear (278) includes a toothed grooved gear (279) or a through gear ( 280), the toothed cogging gear (279) is provided with an inter-tooth discharge groove (281) and an inter-tooth drive tooth (282). The inter-tooth discharge groove (281) is set between two adjacent inter-tooth drive teeth (282), so that the toothed cogging gear (279) has a discharge function. Multiple inter-tooth drive teeth (282) and inter-tooth discharge grooves (281) are set on a drive shaft plate gear (278), so that multiple inter-tooth drive teeth (282) arranged in the same row laterally work synchronously, avoiding multiple drive shaft plate gears (278) being separately set when driving the same three-arc anti-detachment and leakage blocking component (2) and being misaligned when inserted into the inner tooth blind hole (6) of the shaft plate, causing the drive shaft plate gear (278) that is inserted into the inner tooth blind hole (6) of the shaft plate first to be isolated. The damage caused by the force applied is beneficial to the discharge of material or blockage in the blind hole (6) of the inner toothed gear (6) of the shaft plate when the intermittent drive gear (282) is inserted into the blind hole (6) of the inner toothed gear (6) of the shaft plate, and to prevent the blockage from preventing the drive shaft plate gear (278) from meshing with the blind hole (6) of the inner toothed gear (6) of the shaft plate. The two ends of the drive shaft (277) are provided with drive shaft guide wheels (283). The drive shaft guide wheels (283) are located on the outside of the drive shaft plate gear (278). The drive shaft guide wheels (283) include the drive shaft left guide wheel (284) and / or the drive shaft right guide wheel (285). The drive shaft left guide wheel (284) is located at the left end of the drive shaft (277), and the drive shaft right guide wheel (285) is located at the right end of the drive shaft (277). 5) The drive shaft guide wheel (283) includes a guide wheel through-shaft positioning hole and a belt deviation baffle (287). The guide wheel through-shaft positioning hole is located in the middle of the belt deviation baffle (287). The guide wheel through-shaft positioning hole and the belt deviation baffle (287) are either separately connected or integrated. The drive shaft (277) passes through the guide wheel through-shaft positioning hole. A positioning guide wheel is provided between the drive shaft (277) and the drive shaft guide wheel (283). The positioning guide wheel and the drive shaft guide wheel (283) are either separately attached or integrated. The positioning guide wheel prevents the drive shaft guide wheel (283) from rotating relative to the drive shaft (277). The drive shaft (277) drives the drive shaft guide wheel (283) to rotate.The left guide wheel (284) of the drive shaft, in conjunction with the right guide wheel (285), causes the conveyor belt (373) to be confined by rolling friction with the drive shaft guide wheel (283) at a position where the drive shaft plate gear (278) can mesh with the three-arc anti-disengagement and leakage-blocking component (2). The anti-jamming chain conveyor device for the material passage space of the excavator according to claim 1 is characterized in that: The three-arc anti-detachment and leakage blocking component (2) includes an arc-shaped three-arc anti-detachment and leakage blocking component (289). The center of the arc surface of the arc-shaped three-arc anti-detachment and leakage blocking component (289) coincides with the axis of the drive shaft (277). When the arc-shaped three-arc anti-detachment and leakage blocking component (289) passes through the drive shaft (277), the center of the outer circle formed by the multiple arc-shaped three-arc anti-detachment and leakage blocking components (289) and the drive shaft plate gear (278) coincides with the center of the drive shaft plate gear (278). This makes the scraper (226) on the surface of the arc-shaped three-arc anti-detachment and leakage blocking component (2) stably adhere to the arc-shaped three-arc anti-detachment and leakage blocking component (289) to remove the material on the arc-shaped three-arc anti-detachment and leakage blocking component (289) and prevent the three-arc anti-detachment and leakage blocking component (2) from carrying back the material. The anti-jamming chain conveyor device for the material passage space of the excavator according to claim 1 is characterized in that: The conveyor belt anti-slip plate (271) includes a flat anti-slip plate (291), a side baffle anti-slip plate (292), or a wheel groove anti-slip plate. When the side baffle anti-slip plate (292) is used, the side baffle anti-slip plate (292) includes a left anti-roller baffle (294) and / or a right anti-roller baffle (295). The side baffle anti-slip plate (292) also includes an upper anti-roller pressure plate (296). The left anti-roll wheel stop (294) and / or the right anti-roll wheel stop (295) are located below the upper anti-roll wheel pressure plate (296). The upper anti-roll wheel pressure plate (296) and the left anti-roll wheel stop (294) are separately connected or integrated. The upper anti-roll wheel pressure plate (296) and the right anti-roll wheel stop (295) are separately connected or integrated. The left transport trough side frame (265) is equipped with the left anti-roll wheel stop (294), and the right transport trough side frame (266) is equipped with the right anti-roll wheel stop (295). The left anti-roll wheel stop (294) and the right anti-roll wheel stop (295) cooperate to restrict the left and right movement of the toothed belt (24) of the belt shaft. The low-height anti-jamming chain conveyor (230) for mining machines includes a roller storage space (2 97), the side frame (263) of the transport trough is provided with idler rollers (92) at intervals, and the idler roller storage space (297) is formed between the two idler rollers (92). When the belt surface of the toothed belt (24) of the belt shaft runs for a long time and the belt surface is stretched, the idler roller storage space (297) causes the belt surface of the toothed belt (24) of the belt shaft to be concave. The roller (237) of the toothed belt (24) through the belt shaft prevents the belt surface of the toothed belt (24) from moving up and down. The left guide wheel (284) of the drive shaft and the right guide wheel (285) of the drive shaft prevent the toothed belt (24) of the belt shaft from moving left and right. This eliminates the need for the complex structure of tensioners at the head and tail of the machine. The gear (278) of the drive shaft plate meshes with the three-arc anti-disengagement and leakage blocking component (2) to drive the toothed belt (24) of the belt shaft to run smoothly. The anti-jamming chain conveyor device for the material passage space of the excavator according to claim 1 is characterized in that: The anti-jamming chain conveyor device (1) for the material passage space of the excavator includes an all-round rolling friction belt conveyor (298). The all-round rolling friction belt conveyor (298) includes a guide wheel (299) on the side of the guide trough, a conveyor belt (373), and a guide trough (176). The guide wheel (299) on the side of the guide trough includes a guide wheel (523) rotating on the inner ring of the bearing or a guide wheel (524) rotating on the outer ring of the bearing. A guide trough fixing guide wheel mechanism (300) is provided on the guide trough (176). The guide trough fixing guide wheel mechanism (300) includes a guide trough upper and lower fixing guide wheel mechanism (490) and / or a guide wheel mechanism (491) in the trough. When the guide trough upper and lower fixing guide wheel mechanism (490) is used, the guide trough upper and lower fixing guide wheel mechanism (490) includes a guide trough upper fixing guide wheel mechanism (313) and / or a guide trough lower fixing guide wheel mechanism (314). The inner ring rotating guide wheel (523) includes a support guide wheel bearing (302), a guide wheel shaft (303), and a guide wheel (304). The guide wheel shaft (303) supports the guide wheel shaft (304) and supports the rotation of the guide wheel (304). The support guide wheel bearing (302) includes an upper guide wheel bearing (305) and / or a lower guide wheel bearing (306). The guide wheel shaft (303) includes an upper guide wheel shaft (307) and / or a lower guide wheel shaft (308). The guide wheel (304) includes... Includes an upper guide wheel (309) and / or a lower guide wheel (310), an upper guide wheel bearing (305) supporting an upper guide wheel shaft (307), an upper guide wheel shaft (307) supporting an upper guide wheel (309), the upper guide wheel bearing (305), the upper guide wheel shaft (307) and the upper guide wheel (309) forming an upper guide wheel assembly (311), a lower guide wheel bearing (306) supporting a lower guide wheel shaft (308), a lower guide wheel shaft (308) supporting a lower guide wheel (310), and a lower guide wheel bearing (306) and a lower guide wheel... The shaft (308) and the lower guide wheel (310) form the lower guide wheel assembly (312). The upper guide wheel fixing mechanism (313) and the lower guide wheel fixing mechanism (314) of the guide trough cooperate to fix the upper guide wheel assembly (311) and the lower guide wheel assembly (312). The upper guide wheel assembly (311) is set on the upper guide wheel fixing mechanism (313) of the guide trough, and the lower guide wheel assembly (312) is set on the lower guide wheel fixing mechanism (314) of the guide trough. The upper guide wheel assembly (311) causes the conveyor belt (373) to roll in the forward direction. Friction guidance: the lower guide wheel (312) guides the conveyor belt (373) to roll and rub against each other as it runs in the opposite direction. The upper guide wheel (311) cooperates with the lower guide wheel (312) to guide the upper and lower belts of the conveyor belt (373) to roll and rub against each other. When the fixed guide wheel mechanism (491) in the groove is used, the guide trough (176) includes a left groove (492) and / or a right groove (493). The fixed guide wheel mechanism (491) in the groove is set in the middle of the left groove (492) and / or the right groove (493).The guide wheel mechanism (491) in the slot is provided with upper and lower guide wheel shaft holes (462) and upper and lower guide wheel shafts (463). The bearing outer ring rotating guide wheel (524) includes an upper bearing outer ring rotating guide wheel (527) and / or a lower bearing outer ring rotating guide wheel (528). The upper bearing outer ring rotating guide wheel (527) includes an upper bearing sliding member (465), an upper guide wheel bearing (305), and an upper bearing sliding member (469). The lower bearing outer ring rotating guide wheel (528) includes a lower bearing sliding member (471), a lower guide wheel bearing (306), and a lower bearing sliding member (475). The upper and lower guide wheel shafts (463) pass through the upper and lower guide wheel shaft holes (462) and protrude at both ends. The lower part of the upper and lower guide wheel shafts (463) is connected to the lower bearing sliding member (471), the lower guide wheel bearing (306), and the lower bearing sliding member. The sliding member (475), the lower bearing upper sliding member (471), and the lower bearing sliding member (475) cooperate with the lower end face of the upper and lower guide wheel shaft hole (462) to prevent the lower guide wheel bearing (306) from moving up and down. The upper part of the upper and lower guide wheel shaft (463) is connected to the upper bearing sliding member (465), the upper guide wheel bearing (305), and the upper bearing upper sliding member (469). The upper bearing upper sliding member (469) and the upper bearing sliding member (465) cooperate with the upper end face of the upper and lower guide wheel shaft hole (462) to prevent the upper guide wheel bearing (305) from moving up and down. The upper bearing upper sliding member (469) and the lower bearing sliding member (475) position the upper guide wheel bearing (305) and the lower guide wheel bearing (306). The upper guide wheel bearing (305) and the lower guide wheel bearing (306) provide rolling friction guidance for the upper and lower belts of the conveyor belt (373). The anti-jamming chain conveyor device for the material passage space of the excavator according to claim 1 or 20 is characterized in that: The upper bearing outer ring rotation guide wheel (527) includes an upper bearing sliding member (465), an upper guide wheel bearing (305), an upper guide wheel upper sleeve (467), an upper guide wheel lower sleeve (468), and an upper bearing sliding member (469). The upper bearing sliding member (465) is located at the lower part of the upper guide wheel bearing (305) and is tightly fitted against the inner ring of the upper guide wheel bearing (305). The upper guide wheel lower sleeve (468) is fitted on the outside of the upper guide wheel bearing (305) and rotates relative to the upper bearing sliding member (465). The upper guide wheel upper sleeve (467) is fitted on the outer ring of the upper guide wheel bearing (305) and rotates relative to the upper bearing sliding member (469). The upper bearing eccentric component (469) rotates, and the upper guide wheel upper sleeve (467) and the upper guide wheel lower sleeve (468) are fastened and fixed to form a sleeve-type upper guide wheel (470). The lower end of the bearing eccentric component (466) is set against the upper part of the inner ring of the upper guide wheel bearing (305). The lower bearing outer ring rotation guide wheel (528) includes the lower bearing eccentric component (471), the lower guide wheel bearing (306), the lower guide wheel upper sleeve (472), the lower guide wheel lower sleeve (473), and the lower bearing sliding component (475). The lower bearing eccentric component (471) is set close to the inner ring of the lower guide wheel bearing (306) on the upper part of the lower guide wheel bearing (306). The upper guide wheel sleeve (472) is fitted onto the outside of the lower guide wheel bearing (306) and rotates relative to the upper anti-lower bearing member (471). The lower guide wheel sleeve (473) is fitted onto the outer ring of the lower guide wheel bearing (306) and rotates relative to the lower anti-lower bearing sliding member (475). The upper guide wheel sleeve (472) and the lower guide wheel sleeve (473) are fastened and fixed to form a sleeve-type lower guide wheel (474). The sleeve-type upper guide wheel (470) and the sleeve-type lower guide wheel (474) are respectively set at the upper and lower parts of the upper and lower guide wheel shaft holes (462). The upper and lower guide wheel shafts (463) pass through the sleeve-type upper guide wheel (470). The upper and lower guide wheel shaft holes (462), the sleeve-type lower guide wheel (474), the upper blocking bearing upper sliding part (469) cooperate with the upper blocking bearing lower sliding part (465) and the upper end face of the upper and lower guide wheel shaft holes (462) to position the sleeve-type upper guide wheel (470) on the upper part of the upper and lower guide wheel shaft (463), the lower blocking bearing lower sliding part (475) cooperates with the lower blocking bearing upper sliding part (471) and the lower end face of the upper and lower guide wheel shaft holes (462) to position the sleeve-type lower guide wheel (474) on the lower part of the upper and lower guide wheel shaft (463), and the sleeve-type lower guide wheel (474) cooperates with the sleeve-type upper guide wheel (470) to guide the rolling friction of the upper and lower belts of the conveyor belt (373);The upper guide wheel (309) includes an upper guide wheel (476) with anti-jump band and side-grinding, and / or a lower guide wheel (529) with anti-fall band and side-grinding. The upper guide wheel (476) with anti-jump band and side-grinding includes an upper wheel side-grinding surface (530) and / or an upper wheel anti-jump band surface (531). The lower guide wheel (481) with anti-jump band and side-grinding includes a lower wheel side-grinding surface (532) and / or a lower wheel anti-fall band surface (533). The Z-shaped buckle (477) or the double-hole plate connecting piece (478) includes a guide wheel anti-jump band platform (479). The guide wheel anti-jump band platform (479) and the Z-shaped buckle... The belt component (477) is either a separate or integrated unit, or the guide wheel anti-jump belt platform (479) and the double-hole plate connecting component (478) are either separate or integrated. The anti-jump belt side-wearing upper guide wheel (476) includes an upper guide wheel anti-jump belt side-wearing mechanism (480). The guide wheel anti-jump belt platform and the upper guide wheel anti-jump belt side-wearing mechanism (480) are misaligned. The upper guide wheel anti-jump belt side-wearing mechanism (480) prevents the guide wheel anti-jump belt platform (479) from moving upward. The guide wheel anti-jump belt platform (479) prevents the belt on the conveyor belt (373) from jumping upward. The guide wheel (529) for preventing belt slippage includes a belt slippage prevention mechanism (482). When the guide wheel (309) is engaged and the belt slippage prevention platform moves to the lower part of the conveyor, the belt slippage prevention mechanism (482) and the belt slippage prevention platform (479) are misaligned. The belt slippage prevention mechanism (482) prevents the belt slippage prevention platform (479) from falling downward and prevents the Z-shaped belt buckle (477) or the double-hole plate connecting part (478) from sliding and rubbing against the guide chute (176). The guide wheel (299) on the side of the guide chute provides resistance to the upper and lower belts of the conveyor belt (373). With up-down and left-right positioning, the conveyor belt (373) is positioned by the guide wheel (299) on the side of the guide trough, always maintaining a minimum gap with the side rail (534) of the trough to prevent material leakage. Alternatively, a leakage-blocking cover plate (535) can be installed on the side rail (534). The leakage-blocking cover plate (535) includes a cover plate side leakage-blocking sealing groove (536) and a cover plate seal (537). The cover plate seal (537) is installed in the cover plate side leakage-blocking sealing groove (536) and seals the gap between the conveyor belt (373) and the leakage-blocking cover plate (535). The anti-jamming chain conveyor device for the material passage space of the excavator according to claim 1 or 20 is characterized in that: The omnidirectional rolling friction belt conveyor (298) includes a guide wheel (299) on the side of the guide trough, a guide wheel fixing mechanism (300) on the guide trough, and a toothed belt (301) on the shaft plate. The guide wheel (299) on the side of the guide trough includes a support guide wheel bearing (302), a guide wheel shaft (303), and a guide wheel (304). The guide wheel bearing supports the guide wheel shaft (303), and the guide wheel shaft (303) supports the rotation of the guide wheel (304). The support guide wheel bearing (302) includes an upper guide wheel bearing (305) and / or a lower guide wheel bearing (306). The guide wheel shaft... (303) includes an upper guide wheel shaft (307) and / or a lower guide wheel shaft (308), a guide wheel (304) includes an upper guide wheel (309) and / or a lower guide wheel (310), an upper guide wheel bearing (305) supports the upper guide wheel shaft (307), the upper guide wheel shaft (307) supports the upper guide wheel (309), the upper guide wheel bearing (305), the upper guide wheel shaft (307) and the upper guide wheel (309) constitute an upper guide wheel assembly (311), a lower guide wheel bearing (306) supports the lower guide wheel shaft (308), and the lower guide wheel shaft (308) supports... The lower guide wheel (310), the lower guide wheel bearing (306), the lower guide wheel shaft (308), and the lower guide wheel (310) together form the lower guide wheel device (312). A guide trough fixing guide wheel mechanism (300) is provided on the guide trough (176). The guide trough fixing guide wheel mechanism (300) includes a guide trough upper and lower fixing guide wheel mechanism (490) and / or a guide wheel fixing mechanism (491) in the trough. When the guide trough upper and lower fixing guide wheel mechanism (490) is used, the guide trough upper and lower fixing guide wheel mechanism (490) includes the guide trough upper fixing guide wheel mechanism. (313) and / or the lower guide wheel mechanism (314) of the guide trough, the upper guide wheel (311) is set on the upper guide wheel mechanism (313) of the guide trough, and the lower guide wheel (312) is set on the lower guide wheel mechanism (314) of the guide trough. The upper guide wheel (311) provides rolling friction guidance to the toothed belt (301) of the upper shaft plate, and the lower guide wheel (312) provides rolling friction guidance to the toothed belt (301) of the lower shaft plate. The upper guide wheel (311) and the lower guide wheel (312) cooperate to provide rolling friction guidance to the upper and lower belts of the toothed belt (301) of the shaft plate. The anti-jamming chain conveyor device for the material passage space of the excavator according to claim 1 is characterized in that: The guide trough (176) includes a left side plate (320), a right side plate (321), and a bottom connector (322). The bottom connector (322) connects the left side plate (320) and the right side plate (321). The bottom connector (322) includes a bottom plate (495) or a bottom connecting strip. The upper guide wheel (309) includes a push-up conveyor belt pulley (315) and / or a belt-blocking abrasive groove upper wall pulley (316). The lower guide wheel (310) includes a belt-blocking abrasive groove lower wall pulley (318) and / or a belt-blocking abrasive groove lower wall pulley (319). The push-up conveyor belt pulley (315) Alternatively, the upper wall wheel (316) of the abrasive groove can rotate independently, and the upper wall wheel (315) of the conveyor belt and the upper wall wheel (316) of the abrasive groove can be separate or integrated. The outer diameter of the upper wall wheel (315) of the conveyor belt is larger than the outer diameter of the upper wall wheel (316) of the abrasive groove. The upper wall wheel (316) of the abrasive groove and the lower wall wheel (319) of the abrasive groove prevent the conveyor belt (373) from jamming the side wall of the guide groove (176). The upper wall wheel (315) of the conveyor belt prevents the conveyor belt (373) from moving upward. The lower wall wheel (318) of the abrasive groove prevents the lower surface of the conveyor belt (373) from sagging and wearing the bottom connector (322) of the guide groove. The anti-jamming chain conveyor device for the material passage space of the excavator according to claim 1 is characterized in that: The omnidirectional rolling friction belt conveyor (298) includes a low-height anti-wear guide wheel assembly (323), which includes upper and lower guide wheel bearing spacers (324). The outer rings of the upper guide wheel bearing (305) or the lower guide wheel bearing (306) abut against each other or their inner rings abut against each other to support the rotation of the guide wheel (304). Alternatively, the upper and lower guide wheel bearing spacers (324) are disposed between the upper guide wheel bearing (305) and the lower guide wheel bearing (306) so that the upper guide wheel shaft (307) and the lower guide wheel shaft (308) do not interfere with each other when rotating in opposite directions. The upper guide wheel shaft (307) The upper guide wheel shaft (307) includes an upper anti-roll bar (326) and a lower anti-roll bar sleeve (327), and / or a lower guide wheel shaft (308) includes a lower anti-roll bar sleeve (328) and an upper anti-roll bar sleeve (329). The lower anti-roll bar sleeve (327) is separately fastened to the upper guide wheel (309) or is integrated with it. The upper guide wheel (309) is fixed on the upper part of the upper guide wheel shaft (307) to prevent the conveyor belt (373) from wearing the guide groove (176). The upper anti-roll bar sleeve (326) and the lower anti-roll bar sleeve (327) cooperate with the support guide wheel bearing (302) to prevent the upper guide wheel shaft (307) from moving up and down. The upper guide wheel shaft (307) positions the upper guide wheel (309) and rotates under the drive of the conveyor belt (373). The upper guide wheel (309) rotates to cause the conveyor belt (373) and the upper guide wheel (309) to roll and rub against each other, so as to avoid the conveyor belt (373) and the side wall of the guide trough (176) from sliding and rubbing against each other and causing damage. The all-round rolling friction belt conveyor (298) includes a guide wheel bearing retaining ring (325). The height of the guide wheel bearing retaining ring (325) prevents the upper guide wheel shaft (307) from being connected to the surrounding structure. The guide trough fixing guide wheel mechanism (300) includes a guide wheel side hole (330). (Supplementary Figure) The low-height anti-wear guide wheel assembly (323) is directly embedded in the guide wheel side hole (330). The upper part of the guide wheel side hole (330) is connected to the upper part of the guide groove (176). The lower part of the guide wheel side hole (330) is connected to the lower part of the guide groove (176) or to the bottom connector (322) of the guide groove, preventing material from leaking from the guide wheel side hole (330). The upper guide wheel (309) and the lower guide wheel (310) protrude from the inner side of the guide groove (176). The upper guide wheel (309) and the lower guide wheel (310) provide rolling guidance for the conveyor belt (373). The anti-jamming chain conveyor device for the material passage space of the excavator according to claim 1 or 20 is characterized in that: The omnidirectional rolling friction belt conveyor (298) includes a mud and water erosion resistant bearing sleeve (331). The mud and water erosion resistant bearing sleeve (331) includes an upper mud and water erosion resistant bearing sleeve (332) and / or a lower mud and water erosion resistant bearing sleeve (333). The upper mud and water erosion resistant bearing sleeve (332) and / or the lower mud and water erosion resistant bearing sleeve (333) are either separate or integrated. An upper guide wheel bearing (305) is installed in the inner hole of the upper mud and water erosion resistant bearing sleeve (332). The upper mud and water erosion resistant bearing sleeve (332) is provided with an upper sealing ring (334) and a lower sealing ring (335). The upper sealing ring (334) is fitted to the upper guide wheel shaft (307) for sealing and / or fitted to the lower anti-rollover sleeve (327) of the anti-rollover shaft for sealing. The lower sealing ring... (335) is fitted and sealed with the upper guide wheel bearing (317) and the sealing ring (334) and the lower sealing ring (335) are fitted to prevent mud and water from entering the upper guide wheel bearing (305) and prevent mud and water from corroding the outer wall of the upper bearing sleeve (332). The wall of the guide wheel (176) positions the anti-mud and water-corroding bearing sleeve (331). The guide wheel fixing mechanism (300) includes the upper stop (339) and the lower stop (340) of the bearing sleeve. The upper stop (339) and the lower stop (340) of the bearing sleeve cooperate to fasten the anti-mud and water-corroding bearing sleeve (331) to prevent the anti-mud and water-corroding bearing sleeve (331) from moving up, down and left and right. Low height anti-wear guide wheel assembly (323) also includes upper and lower guide wheel bearing sleeves (336), the upper and lower guide wheel bearing sleeves (336) include an upper bearing sleeve (337) and a lower bearing sleeve (338), the upper guide wheel bearing (305) is disposed in the upper bearing sleeve (337), the lower guide wheel bearing (306) is disposed in the lower bearing sleeve (338), the upper and lower guide wheel bearing spacer (324) is disposed between the lower guide wheel bearing (306) and the upper guide wheel bearing (305), the upper bearing sleeve (337) and the lower bearing sleeve (338) are mated and sealed to prevent mud and water from entering the upper and lower guide wheel bearing sleeves (336), the upper end face of the upper and lower guide wheel bearing sleeves (336) is abutted against the upper baffle (339) of the bearing sleeve, the upper and lower guide wheel bearing sleeves are sealed. The lower end face of the sleeve (336) is abutted against the lower stop (340) of the buckle bearing sleeve, and one side of the outer end of the upper and lower guide wheel bearing sleeves (336) is in contact with the end face of the guide wheel fixing mechanism (300) of the guide trough. The upper stop (339) and the lower stop (340) of the buckle bearing sleeve, together with the side and rear of the guide wheel fixing mechanism (300) of the guide trough, fix the upper and lower guide wheel bearing sleeves (336) in multiple directions to prevent the upper guide wheel bearing (305) and the lower guide wheel bearing (306) from moving. The upper guide wheel bearing (305) and the lower guide wheel bearing (306) support the upper guide wheel shaft (307) and the lower guide wheel shaft (308) respectively. Rotating in different directions guides the rolling friction of the upper and lower belts of the conveyor belt (373).The anti-mud and water erosion bearing sleeve (331) includes an anti-mud and water erosion sleeve rotation mechanism (391). The anti-mud and water erosion sleeve rotation mechanism (391) includes a groove wall arc surface (392) and a groove wall plane (393). The corresponding guide groove (176) is provided with an inner arc of the insert bearing sleeve (394) and a bearing sleeve anti-rotation surface (395). The groove wall arc surface (392) is close to the inner arc of the insert bearing sleeve (394), and the groove wall plane (393) is close to the bearing sleeve anti-rotation surface (395), preventing the anti-mud and water erosion bearing sleeve (331) from rotating. The upper and lower guide wheel bearing sleeves (336) most effectively shorten the distance between the upper guide wheel (309) and the lower guide wheel (310). This design combines the upper guide wheel (309) and the lower guide wheel (310) into a multi-directional rotator (396). The multi-directional rotator (396) is compact, ensuring that the upper guide wheel shaft (307) and the lower guide wheel shaft (308) are on the same axis. The upper and lower guide wheel bearing sleeves (336) apply clamping force to the upper guide wheel bearing (305) and the lower guide wheel bearing (306), providing precise rolling friction positioning for the upper and lower conveyor belts (373). This maximizes the retention of the guide chute (176) within the machine body, eliminating the need for separate lower sealing rings and lower waterproof sleeves on the axles (133) required for each of the upper guide wheel (309) and lower guide wheel (310). The anti-jamming chain conveyor device for the material passage space of the excavator according to claim 1 or 20 is characterized in that: The omnidirectional rolling friction belt conveyor (298) includes a guide wheel slip mechanism (341), which includes a guide wheel slip pin, a guide wheel slip plate, a guide wheel slip platform (345), or a guide wheel slip idler (346). When the guide wheel slip idler (346) is used, a support idler (347) is provided on the end face of the upper and lower guide wheel bearing sleeves (336) facing the conveyor belt (373). The support idler (347) includes a left support idler (348) and a right support idler (349). The guide chute side guide wheel (299) includes a left side guide wheel (350) and a right side guide wheel (351). The upper and lower guide wheel bearing sleeves (336) The device includes a left bearing sleeve (352) and a right bearing sleeve (353). A left support roller (348) and a right support roller (349) are respectively mounted on the left bearing sleeve (352) and the right bearing sleeve (353). A guide wheel slip roller (346) is mounted at one end on the left support roller (348) and at the other end on the right support roller (349). The guide wheel slip roller (346) presses against the left bearing sleeve (352) and the right bearing sleeve (353). The guide wheel slip roller (346) cooperates with the upper stop (339) and the lower stop (340) of the bearing sleeve to prevent the left bearing sleeve (352) and the right bearing sleeve (353) from moving left, right, up, down and back. The anti-jamming chain conveyor device for the material passage space of the excavator according to claim 1 is characterized in that: The aforementioned anti-jamming conveyor device for the material passage space of the excavator includes a transport trough (262). The transport trough (262) includes a transport trough side frame (263) and a transport trough base plate (264). The transport trough side frame (263) includes a left transport trough side frame (265) and a right transport trough side frame (266). The transport trough base plate (264) connects the left transport trough side frame (265) and the right transport trough side frame (266) to form a transport belt trough (267). The transport trough side frame (263) includes an outer transport trough side frame (268) and an inner transport trough side frame (269). The inner side panel (269) is provided with a mechanism (270) to prevent the conveyor belt from moving up and down. The mechanism (270) includes a plate (271) to prevent the conveyor belt from moving up and down. The plate (271) is welded, bolted, or slotted to the side panel (263) of the transport trough. The width of the plate (271) is greater than that of the side panel (276) connecting the transport trough. The roller (237) and the gear roller (231) are either separate or integrated. When the roller (237) and the gear roller (231) are integrated, the roller (237) 237) Combined with the shaft gear roller (231) to form a shaft gear roller (275), the anti-conveyor belt up-and-down movement plate (271) covers the double-hole buckle shaft (3) on both sides of the three-arc sealed material carrier (21) and the through-shaft roller (237), or covers the shaft gear roller (231). The through-shaft roller (237) and the shaft gear roller (231) are set separately or as one piece. When the through-shaft roller (237) and the shaft gear roller (231) are set separately, the through-shaft roller (237) rolls and rubs against the anti-conveyor belt up-and-down movement plate (271) to prevent the gear roller conveyor belt from moving. (373) Moving up and down, the shaft gear roller (231) rolls and rubs against the belt shaft (9) when passing the drive gear, preventing the drive gear from damaging the belt shaft (9). When the belt shaft roller (237) and the shaft gear roller (231) are integrated, the belt shaft roller (237) and the shaft gear roller (231) are combined into a shaft gear roller (275). The shaft gear roller (275) combines the functions of the belt shaft roller (237) and the shaft gear roller (231) into one, reducing the length of the belt shaft (9) occupied by the separate setting of the belt shaft roller (237) and the shaft gear roller (231). The anti-jamming chain conveyor device for the material passage space of the excavator according to claim 1 is characterized in that: The omnidirectional rolling friction belt conveyor (298) includes a rolling telescopic drive assembly (372), a conveyor belt frame (389), and a conveyor belt (373). The rolling telescopic drive assembly (372) includes a head telescopic rail (374), a telescopic guide bracket (375), a drive gear assembly (376), a drive power assembly (377), a telescopic cylinder (388), and a telescopic rolling mechanism (378). The head telescopic rail (374) supports the telescopic guide bracket (375), and the telescopic guide bracket (375) supports the drive gear assembly (398). 376), the drive gear assembly (376) is connected to the drive power assembly (377), the telescopic rolling mechanism (378) includes a telescopic roller (380) and / or a telescopic ball (381), the telescopic rolling mechanism (378) is disposed on the telescopic guide bracket (375) and / or the telescopic rolling mechanism (378) is disposed at the lower part of the drive power assembly (377), when the telescopic rolling mechanism (378) is disposed on the telescopic guide bracket (375), the telescopic guide bracket (375) includes a telescopic guide plate (379), and a telescopic cylinder (388) One end of the telescopic cylinder (388) is set on the conveyor belt frame (389) and the other end is connected to the telescopic guide plate (379). Alternatively, one end of the telescopic cylinder (388) is set on the conveyor belt frame (389) and the other end is connected to the drive power assembly (377). The telescopic cylinder (388) extends and retracts, driving the rolling telescopic drive assembly (372) to reciprocate. When the telescopic guide plate (379) and / or the machine head telescopic track (374) are equipped with a telescopic rolling mechanism (378), the telescopic rolling mechanism (378) supports the telescopic guide bracket (375) and the drive gear assembly (377). 76) The rolling friction telescopic of the drive power assembly (377) and the conveyor belt (373) is tensioned, or when the telescopic rolling mechanism (378) is located at the lower part of the drive power assembly (377), the lower part of the drive power assembly (377) is provided with a telescopic roller (380) or the lower part of the drive power assembly (377) is provided with a telescopic ball (381), and the telescopic rolling mechanism (378) supports the telescopic guide bracket (375), the drive gear assembly (376) and the rolling telescopic of the drive power assembly (377) to roll and telescopically tension the conveyor belt (373);The all-around rolling friction belt conveyor (298) or the supporting power assembly base (390) includes a push conveyor head base plate (382), on which a base plate track (383) is provided to cooperate with the telescopic rollers (380) or telescopic balls (381), or a support rolling body track is provided on the supporting power assembly base (390) to cooperate with the telescopic rollers (380) or telescopic balls (381). When the coal seam height is low and the space is small, a drive unit rolling body is provided on the drive power assembly (377) or the push conveyor head base plate (382). When a drive unit rolling element groove (384) is provided in the drive power assembly (377), a corresponding base plate rolling element track (385) is provided on the bottom plate (382) of the conveyor head. Telescopic balls (381) or telescopic rollers (380) are placed in the drive unit rolling element groove (384), such that the height of the telescopic balls (381) is greater than that of the drive unit rolling element groove (384). The telescopic balls (381) are placed between the drive unit rolling element groove (384) and the base plate rolling element track (385). The telescopic balls (381) support the telescopic guide. The frame (375), drive gear assembly (376), and drive power assembly (377) roll and extend. When a push plate ball groove (386) is provided on the bottom plate (382) of the pusher conveyor head, a corresponding power assembly ball track (387) is provided on the drive power assembly (377). The telescopic ball (381) is placed in the push plate ball groove (386), so that the height of the telescopic ball (381) is greater than the push plate ball groove (386). The telescopic ball (381) is placed between the push plate ball groove (386) and the power assembly ball track (387). Telescopic ball bearings (381) support the telescopic guide bracket (375), drive gear assembly (376), and drive power assembly (377) to roll and extend, tensioning the conveyor belt (373). Alternatively, when using telescopic rollers (380), the telescopic rollers (380) are positioned at the bottom of the drive power assembly (377), preventing the bottom of the drive power assembly (377) from sliding against the support power assembly seat (390). This allows the drive power assembly (377) to roll and extend under the support of the telescopic rollers (380), tensioning the conveyor belt (373). The anti-jamming chain conveyor device for the material passage space of the excavator according to claim 1 or 20 is characterized in that: The omnidirectional rolling friction belt conveyor (298) includes a blind hole cleaning toothed groover (354), which includes a water jet blind hole cleaning shaft plate device (355) or a spring knife blind hole cleaning toothed groover (356). The water jet blind hole cleaning shaft plate device (355) includes a high-pressure pipe (357), a high-pressure nozzle (358), a high-pressure pump (359), a blind hole cleaning shaft plate control valve (360), and a head frame (361). The high-pressure pipe (357) is supported by the head frame (361). The high-pressure pipe (357) and the high-pressure nozzle (359) are connected to each other. 58) The components are either separate or integrated. The high-pressure pipe (357) is located near the blind hole shaft plate gear (17) on the headstock (361) or near the blind hole shaft plate roller (18). The blind hole shaft plate cleaning control valve (360) is located at the outlet of the high-pressure pump (359). The blind hole shaft plate cleaning control valve (360) is connected to the high-pressure pipe (357). When it is necessary to clean the blind hole (6) inside the shaft plate, the high-pressure pump (359) and the blind hole shaft plate cleaning control valve (360) are started, so that the water jet cleaning blind hole shaft plate device (355) sprays water energy. The water jet cleaning device (355) removes the adhering and hardened material inside the blind hole (6) of the shaft plate without damaging the blind hole (6), thus removing the adhering material from the blind hole (6) of the shaft plate. The high-pressure nozzle (358) includes a blind hole cleaning shaft plate nozzle (362) or a blind hole cleaning shaft plate gear nozzle (363). The jet sprayed by the blind hole cleaning shaft plate nozzle (362) is directed towards the blind hole (6) of the shaft plate, while the jet sprayed by the blind hole cleaning shaft plate gear nozzle (363) is directed towards the blind hole shaft plate gear (17) or towards the... The blind hole roller (18) is set up. When the spring knife blind hole clearing tooth groove device (356) is used, the spring knife blind hole clearing tooth groove device (356) includes a spring knife holder (364) and a spring knife (365). The spring knife holder (364) is supported by the head frame (361). The spring knife (365) is set on the spring knife holder (364). The spring knife (365) includes a spring knife edge (366). The spring knife edge (366) is placed against the inner surface of the toothed conveyor belt (12) to remove the material adhering to the inner surface of the toothed conveyor belt (12). The anti-jamming chain conveyor device for the material passage space of the excavator according to claim 1 or 20 is characterized in that: The omnidirectional rolling friction belt conveyor (298) includes a belt tensioner (367), which includes a belt head shaft hole (368), a belt tail shaft hole (369), a belt tensioning screw (370), and a belt tensioning nut (371). When the toothed conveyor belt (12) is loose and some of the three-arc anti-loosening and leak-proof parts (2) need to be removed before tightening, the excess double-hole buckle shaft parts (3) and three-arc anti-loosening and leak-proof parts (2) are removed, and the belt head shaft hole parts (368) are inserted into the belt that needs to be tightened. Insert the buckle front shaft hole (10) at one end of the buckle conveyor belt (12), insert the buckle tail shaft hole (369) into the buckle rear shaft hole (11) at the other end of the buckle conveyor belt (12) that needs to be tightened, rotate the belt tension nut (371) to bring the two ends of the buckle conveyor belt (12) closer together, add a three-arc anti-detachment and leakage blocking part (2) or remove a front and rear double hole buckle shaft part (3), so that the front and rear double hole buckle shaft part (3) is connected with the three-arc anti-detachment and leakage blocking part (2), so that the buckle conveyor belt (12) is in the best operating state. The anti-jamming chain conveyor device for the material passage space of the excavator according to claim 1 is characterized in that: The anti-jamming chain conveyor device (1) for the material passage space of the excavator includes a spiral walking scraping and cleaning device (406), a conveyor belt (373), and a conveyor frame (439). The conveyor belt (373) includes an upper conveyor belt (440) and a lower return belt (441). The spiral walking scraping and cleaning device (406) includes a scraping and pushing component rotating structure (413), an internal thread scraping and cleaning component (408), a power screw (409), a drive screw component (410), and a frame groove (411). The spiral walking scraping and cleaning device (406) is located between the upper conveyor belt (440) and the lower return belt (441) or located below the lower return belt (441). The scraping and pushing component rotating structure (413) is fixed on the frame groove (411). The conveyor frame ( 439) includes a frame slot (411) and / or a frame bottom component (459), the frame slot (411) includes a left slot (496) and a right slot (497), a portion of the internal thread scraper (408) is located at the lower part of the anti-scraping pusher rotating structure (413) or a portion of the internal thread scraper (408) is located at the upper part of the anti-scraping pusher rotating structure (413), the anti-scraping pusher rotating structure (413) prevents the internal thread scraper (408) from rotating, or the conveyor belt (440) and / or the return belt (441) prevent the internal thread scraper (408) from rotating, the power screw (409) passes through one side of the frame slot (411) and is threadedly connected to the internal thread scraper (408), the power screw (409) The machine is supported by the left slot (496) and / or the right slot (497). The power screw (409) directly rolls and rubs against the left slot (496) and / or the right slot (497). Alternatively, one end of the power screw (409) is provided with a screw bearing (415). The screw bearing (415) is directly supported by the frame slot (411) or indirectly supported by the frame slot (411) or supported by the drive screw component (410). The power screw (409) is connected to the drive screw component (410). The frame slot (411) is provided with a discharge hole (416). The drive screw component (410) is supported by the frame slot (411) or supported by the frame bottom component (459). The screw component (410) drives the power screw (409). The power screw (409) rotates in the forward and reverse directions to push the internal thread scraper (408) along the anti-scraping and pushing component rotation structure (413) to reciprocate and scrape the material, or the internal thread scraper (408) along the upper conveyor belt (440) to reciprocate and scrape the material, or the internal thread scraper (408) along the lower return belt (441) to reciprocate and scrape the material, pushing the material between the upper conveyor belt (440) and the lower return belt (441) of the conveyor belt (373) to the outside of the conveyor. When the spiral walking scraper (406) is located at the lower part of the lower return belt (441), the internal thread scraper (408) is located between the bottom component (459) of the frame and the lower return belt (441).A power screw (409) passes through one side of the frame slot (411) and is threadedly connected to the internally threaded scraper (408). The power screw (409) is supported by the left slot (496) and / or the right slot (497). A drive screw assembly (410) drives the power screw (409). The power screw (409) rotates in both directions, pushing the internally threaded scraper (408) to reciprocate along the anti-scraping pusher rotating structure (413) to scrape the material between the return belt (441) and the frame bottom component (459) out of the transport frame (439). Alternatively, the power screw (409) rotates in both directions, pushing the internally threaded scraper (408) to reciprocate along the frame bottom component (459) to scrape the material between the return belt (441) and the frame bottom component (459) out of the transport frame (439). The anti-jamming chain conveyor device for the material passage space of the excavator according to claim 1 or 31 is characterized in that: The spiral walking scraping and cleaning device (406) includes a material collecting guide (407). The spiral walking scraping and cleaning device (406) is located between the conveying upper belt (440) and the return lower belt (441) or located at the lower part of the return lower belt (441). The material collecting guide (407) is fixed on the frame groove (411). The material collecting port of the material collecting guide (407) is set towards the running direction of the conveying upper belt (440). The material collecting guide (407) includes a material collecting mechanism (412) and a scraping-stopping and pushing component rotating structure (413). The material collecting mechanism (412) and the scraping-stopping and pushing component rotating structure (413) are connected. A material guide (407) is formed by connecting the internal thread scraping component (408), which is partially located on the material guide (407). The material guide (407) prevents the internal thread scraping component (408) from rotating. A power screw (409) passes through one side of the frame slot (411) and is threadedly connected to the internal thread scraping component (408). The power screw (409) is supported by the left slot (496) and / or the right slot (497). The frame slot (411) is provided with a discharge hole (416). The drive screw component (410) is supported by the frame slot (411) or the drive screw component (410) is supported by the frame. The bottom component (459) provides support, and the drive screw component (410) drives the power screw (409). The power screw (409) rotates in the forward and reverse directions to push the internal thread scraper (408) to reciprocate along the material collection guide (407) to scrape and push the material. This pushes the material between the upper conveyor belt (440) and the lower return belt (441) of the conveyor belt (373) to the outside of the conveyor. When the spiral scraper device (406) is located at the lower part of the lower return belt (441), the material collection guide (407) is located between the bottom component (459) of the frame and the lower return belt (441). Part of (408) is located in the material guide (407). The power screw (409) passes through one side of the frame slot (411) and is threadedly connected to the internal thread scraper (408). The power screw (409) is supported by the left slot (496) and / or the right slot (497). The drive screw component (410) drives the power screw (409). The power screw (409) rotates in the forward and reverse directions to push the internal thread scraper (408) to move back and forth along the material guide (407) to scrape the material between the return belt (441) and the bottom component (459) of the frame out of the transport frame (439). The anti-jamming chain conveyor device for the material passage space of the excavator according to claim 35 is characterized in that: The power screw (409) includes a front rotating part (417) and / or a rear rotating part (418). The front rotating part (417) is located at the front of the power screw (409) and rotates the material pushed to the front of the power screw (409) by the internal thread scraper (408) out of the conveyor. When the internal thread scraper (408) only scrapes the material to one side of the conveyor, the front rotating part (417) rotates the material pushed to the front of the power screw (409) by the internal thread scraper (408) out of the internal screw. The front part of the internal thread scraper (408) is cleaned, and the material adhering to the front part of the internal thread scraper (408) is removed. The internal thread scraper (408) is moved backward, pushing the material spun out by the front rotating part (417) of the screw towards the discharge hole (416) at the rear. This pushes the material accumulated between the upper conveyor belt (440) and the lower return belt (441) out of the conveyor. Alternatively, a rear rotating part (418) of the screw is set at the rear of the power screw (409). When the internal thread scraper (408) runs to the power screw (409) At the rear end, the screw rear end rotating part (418) removes the internal thread scraping material part (408) and scrapes the material stuck to the material surface, and rotates the material out of the conveyor, preventing the material outside the conveyor from entering between the upper conveyor belt (440) and the lower return belt (441) through the discharge hole (416) or preventing the material outside the conveyor from entering the bottom of the lower return belt (441). The buckle upper widening shaft plate belt (397) includes the buckle upper shaft plate belt (460) and the buckle upper shaft plate return belt (461). The buckle upper shaft plate belt ( An internally threaded scraper (408) is provided between the upper shaft plate return belt (461) and the upper belt of the clamping block (460). The internally threaded scraper (408) removes the sludge at the material-carrying shaft plate (498). The screw front rotating part (417) is provided between the upper belt and the lower belt material-carrying body clamping block upper part (399), the guard wheel body, and the material-carrying body part (401) and / or the screw rear rotating part (418) is provided between the upper belt and the lower belt material-carrying body clamping block upper part (399), the guard wheel body, and the material-carrying body part (401). The front rotating part (417) of the screw removes the blockage material between the upper and lower belts of the power screw (409) and the material receiving body clamping upper part (399), the guard wheel body, and the material receiving body part (401) and / or the rear rotating part (418) of the screw removes the blockage material between the upper and lower belts of the power screw (409) and the material receiving body clamping upper part (399), the guard wheel body, and the material receiving body part (401) at the rear of the power screw (409). The anti-jamming chain conveyor device for the material passage space of the excavator according to claim 1 or 31 is characterized in that: The spiral-walking scraping and cleaning device (406) is installed between the upper conveyor belt (440) and the lower return belt (441) between the upper conveyor belt pulley (315) and the lower belt grinding wheel (318). It accurately removes the clogging material between the upper conveyor belt (440) and the lower return belt (441). The material is not difficult to be removed by the spiral-walking scraping and cleaning device (406) due to the upper conveyor belt (440) jumping up or the lower return belt (441) bending down. Alternatively, the upper part of the conveyor belt (373) is equipped with a belt pressing wheel, which prevents the upper conveyor belt (440) from climbing up. The material conveyor belt (440) and the material collector guide (407) work together to make the internal thread scraper (408) scrape and push the material accumulated between the material conveyor belt (440) and the return belt (441) to the outside of the conveyor. Alternatively, the return belt (441) is provided with a lower idler roller (442) at the bottom. The lower idler roller (442) lifts the return belt (441) by rolling friction. The return belt (441) and the material collector guide (407) work together to scrape and push the material accumulated between the material conveyor belt (440) and the return belt (441) to the outside of the conveyor. The anti-jamming chain conveyor device for the material passage space of the excavator according to claim 1 or 31 is characterized in that: A support roller (443) is provided on the upper or rear part of the material collecting guide (407) of the spiral walking scraping and cleaning device (406). The support roller (443) lifts the conveyor belt (440) so that the lower surface of the conveyor belt (440) and the spiral walking scraping and cleaning device (406) can both scrape and clean the material on the lower surface of the conveyor belt (440) without wearing the conveyor belt (373) or the spiral walking scraping and cleaning device (406). The anti-jamming chain conveyor device for the material passage space of the excavator according to claim 1 is characterized in that: The internal thread scraper (408) is equipped with a scraper blade (419). The scraper blade (419) is located on the upper and / or lower part of the internal thread scraper (408). The blade of the scraper blade (419) cuts off the material stuck to the conveyor belt (440) and / or the return belt (441). The internal thread scraper (408) scrapes the accumulated and stuck material out of the conveyor. The anti-jamming chain conveyor device for the material passage space of the excavator according to claim 1 is characterized in that: The spiral walking scraping and cleaning device (406) includes a high-pressure water cannon (422) for removing caking material. The high-pressure water cannon (422) is installed on the material collecting guide (407) or on the conveyor frame (439). The outlet of the high-pressure water cannon (422) is directed towards the easily caking material, towards the internal thread scraping and cleaning component (408), or towards the inner cavity of the material collecting guide (407). When it is necessary to remove caking material, the high-pressure water cannon (422) is activated. The high-pressure water cannon (422) for removing caking material breaks and melts the caking material with high-pressure jets, and directly flushes the caking material out of the conveyor. Or, when the internal thread scraper (408) is stuck by caking material, the high-pressure water cannon (422) for removing caking material is activated. The high-pressure jet breaks and melts the caking material solidified on the internal thread scraper (408) and the caking material solidified in the inner cavity of the material guide (407), so that the internal thread scraper (408) runs smoothly and pushes the caking material out of the conveyor. The anti-jamming chain conveyor device for the material passage space of the excavator according to claim 1 or 31 is characterized in that: The low-height anti-impact conveyor (171) includes an omnidirectional turning conveyor (423), which includes a transfer belt (424), a transfer return belt (425), a receiving belt (426), a transfer belt driver (427), a transport deflector (428), a transport drive roller (420), a transport driven roller (429), a receiving drive roller (421), a receiving driven roller (430), a transfer driver (431), and a receiving driver (432). The transfer belt (424) is set on the receiving belt (429). 6) The upper part of the transfer material return belt (425) is set above or below the receiving material return belt (433). The transfer material driver (431) drives the transfer material belt (424) to transport materials around the material driving roller (420) and the material driven roller (429). The receiving material driver (432) drives the receiving material belt (426) to rotate around the receiving material driving roller (421) and the receiving material driven roller (430). The transfer material belt driver (427) drives the transfer material belt (424) to transport materials. The material diverter (428) is set above the transfer material belt (424). The material on the transfer belt (424) is pushed off one side of the transfer belt (424), and the material receiving driver (432) drives the receiving belt (426). The receiving belt (426) receives the material pushed off the transfer belt (424) by the material receiving deflector (428), so that the material is transported by a sharp turn, the drop height is low, and the space occupied is small. The anti-jamming chain conveyor device for the material passage space of the excavator according to claim 1 is characterized in that: The omnidirectional rolling friction belt conveyor (298) includes a long-distance central drive conveyor (434), which includes two or more gear drive units (435) and a conveyor belt (373). The gear drive unit (435) includes a head gear drive (436) and a belt-mounted gear drive (437). The head gear drive (436) is located at one end of the conveyor belt (373), and the belt-mounted gear drive (437) is located in the middle area of ​​the conveyor belt (373). The belt-mounted gear drive (437) includes a blind hole gear component (438) and a power component (35). The conveyor belt (373) includes a toothed conveyor belt (12). The blind hole gear component (438) meshes with the toothed conveyor belt (12), and the power component (35) drives the blind hole gear component (438) to assist the head gear drive (436) in transporting materials. The anti-jamming chain conveyor device for the material passage space of the excavator according to claim 1 is characterized in that: The material passage space anti-jamming chain conveyor device (1) for increasing the material passage space of the excavator includes a cover anti-jump pulley component leakage blocking and widening shaft plate belt conveyor (29). The cover anti-jump pulley component leakage blocking and widening shaft plate belt conveyor (29) includes a shaft plate toothed belt (301). The shaft plate toothed belt (301) includes a cover anti-jump pulley component widening shaft plate belt (44). The anti-jump pulley component widening shaft plate belt (44) includes a buckling pressure plate cover anti-jump pulley widening shaft plate belt (566) or a buckling vertical bar upper widening shaft plate belt (567). The cover anti-jump pulley component widening shaft plate belt (44) includes a material-carrying shaft plate (498), a belt assembly shaft (9), a connecting shaft belt assembly component (500), and a cover wheel leakage blocking and widening belt device (290). The material-carrying shaft plate (498) and the belt assembly shaft (9) Separate fixed or integrated type, the connecting shaft assembly (500) connects the front and rear assembly shafts, the cover wheel anti-jump belt widening device (290) includes a cover anti-jump pulley assembly (344), a protective shaft body (400), a material receiving body assembly (401) and a material trough side sill (534), the material receiving body assembly (401) and the material carrying shaft plate (498) are separately connected or integrated, the cover anti-jump pulley assembly (344) is connected to the material receiving body assembly (401) through the protective shaft body (400) as an integrated unit, the cover anti-jump pulley assembly (344), the protective shaft body (400) and the material receiving body assembly (401) form the cover anti-jump pulley widening belt shaft plate assembly (525), the cover anti-jump pulley widening belt shaft plate assembly (525) and the material carrying shaft plate ( 498) The two parts are connected separately or as one piece. The cover anti-jump pulley wide belt axle plate (525) and the material-carrying axle plate (498) form the cover anti-jump pulley material-carrying axle plate (526). The cover anti-jump pulley material-carrying axle plate (526) includes the front convex arc (543) and the rear concave arc (544) of the cover anti-jump pulley axle plate. The center line of the rear concave arc (544) of the cover anti-jump pulley axle plate of the first cover anti-jump pulley material-carrying axle plate (526) is the same as the center line of the belt axle (9) of the second cover anti-jump pulley material-carrying axle plate (526). They are closely attached to the arc surface of the front convex arc (543) of the cover anti-jump pulley axle plate of the second cover anti-jump pulley material-carrying axle plate (526). The axis of (543) is the same as the axis of the concave arc (544) of the front cover anti-jump pulley axle plate. The connecting belt assembly (500) includes a Z-shaped buckle (477) or a double-hole plate connecting belt (478). The front and rear belt shafts are connected in sequence by the Z-shaped buckle (477) or the double-hole plate connecting belt (478). The concave arc (544) of the front cover anti-jump pulley axle plate is close to the convex arc (543) of the front cover anti-jump pulley axle plate of the rear cover anti-jump pulley material-carrying axle plate (526) around the same axis. When passing through the roller, they engage and rotate to prevent material leakage. The widening belt axle plate (525) of the cover anti-jump pulley and the material-carrying axle plate (498) work together to increase the width of the transported material and prevent leakage.The axle plate buckle belt (301) includes a buckle sealing pressure plate cover anti-jump pulley component (541) or a buckle upright belt with a widening component (197). When the buckle sealing pressure plate cover anti-jump pulley component (541) is used, the buckle sealing pressure plate cover anti-jump pulley component (541) is spaced apart from the material trough side block (534). A sealing plate (542) is provided on the upper surface of the material trough side block (534). The sealing plate (542) and the buckle sealing pressure plate cover anti-jump pulley component (541) are misaligned and overlapped. The sealing plate (542) prevents material from leaking into the conveyor belt (373) from the gap between the material trough side block (534) and the buckle sealing pressure plate cover anti-jump pulley component (541), and prevents the cover anti-jump pulley material-carrying axle plate (526) from overturning. Or when the buckle upright belt with a widening component (397) is used, the buckle upright belt... The upper widening shaft plate band (397) includes a clamping upper widening band device (398). The clamping upper widening band device (398) includes a material receiving clamping upper part (399), a shaft guard (400), a material receiving part (401), and a material trough side sill (534). The material receiving clamping upper part (399) is connected to the material receiving part (401) as a whole through the shaft guard (400). The material receiving clamping upper part (399), the shaft guard (400), and the material receiving part (401) together form the clamping upper widening band device (197). The clamping upper widening band device (197) is either separately connected to the material-carrying shaft plate (498) or integrated with it. The clamping upper widening band device (197) and the material-carrying shaft plate (498) together form the clamping sill. The upper material-carrying shaft plate (259) includes a front convex arc (199) and a rear concave arc (232) of the upper material-carrying shaft plate of the previous upper material-carrying shaft plate. The rear concave arc (232) of the upper material-carrying shaft plate of the previous ... The centerline of the forward convex arc (199) of the first snap-on shaft plate is the same as the centerline of the backward concave arc (232) of the preceding snap-on shaft plate. The arc surface of the backward concave arc (232) of the preceding snap-on shaft plate is close to the arc surface of the forward convex arc (199) of the material-carrying shaft plate (259) of the following snap-on shaft plate. When passing through the roller, they engage and rotate to prevent material leakage, and cover the anti-jump pulley. The integrated operation of the wide-width shaft plate (525) and the material-carrying shaft plate (498) increases the width of the transported material, preventing leakage. When the wide-width shaft plate (525) of the anti-jump pulley is used to push the coal mining machine under the conveyor and when the conveyor is bending, if there is a large gap on one side of the material trough side block (534) where material leaks, the wide-width shaft plate (525) of the anti-jump pulley slides against the lower surface of the sealing plate (542) or against the upper surface of the material trough side block (534). The gap that appears when the conveyor bends is larger than that on the upper surface of the sealing plate (542) or the upper surface of the material trough side block (534), which is larger than the gap that appears when the conveyor bends, is compensated by the wide-width shaft plate (525) of the sealing plate (542) or the upper surface of the material trough side block (534), so that no vertical leakage gap is generated on the upper surface of the bent conveyor, thus reducing material leakage. The anti-jamming chain conveyor device for the material passage space of the excavator according to claim 1 or 40 is characterized in that: The cover anti-jump pulley component leakage-blocking and widening shaft plate belt conveyor (29) includes a guide wheel (299) on the side of the guide trough, a guide wheel fixing mechanism (300) for the guide trough, and a toothed belt (301) for the shaft plate. The guide wheel fixing mechanism (300) is set on the guide trough (176) and positions the guide wheel (299) on the side of the guide trough. The guide wheel (299) positions the cover anti-jump pulley material-carrying shaft plate (526) up, down, left, and right. The cover wheel leakage-blocking and widening belt device (290) is positioned by the cover anti-jump pulley material-carrying shaft plate (526) and always maintains the minimum gap with the side rail (534) of the trough to prevent material leakage. It transports materials with the material-carrying shaft plate (498) and shovels the material mined by the coal mining machine into the transportation space by pushing the side rail (534) of the trough with the cover wheel leakage-blocking and widening belt device (290). The anti-jamming chain conveyor device for the material passage space of the excavator according to claim 1 is characterized in that: The anti-jump pulley widening belt plate (293) includes a solid widening belt plate (568) or a hollow widening belt plate (569). When a hollow widening belt plate (569) is used, the hollow widening belt plate (569) includes a single-hole hollow part (570) or a multi-hole hollow part (571). The anti-jump pulley widening belt plate (293) includes a metal anti-jump pulley widening belt plate (342) or a polymer material anti-jump pulley widening belt plate. Shaft plate or plastic cover anti-jump pulley wide shaft plate (343) or metal plastic cover anti-jump pulley wide shaft plate (252) or metal rubber cover anti-jump pulley wide shaft plate or metal nylon cover anti-jump pulley wide shaft plate (253), metal polymer material cover anti-jump pulley wide shaft plate or ceramic cover anti-jump pulley wide shaft plate or ceramic metal cover anti-jump pulley wide shaft plate (342) or nylon cover anti-jump pulley wide shaft plate. The three-arc anti-detachment and leakage blocking component (2) includes a metal three-arc anti-detachment and leakage blocking component (444) or a nylon three-arc anti-detachment and leakage blocking component (445) or a polymer three-arc anti-detachment and leakage blocking component or a plastic three-arc anti-detachment and leakage blocking component. The three-arc anti-detachment and leakage blocking component (2) includes a composite material three-arc anti-detachment and leakage blocking component (113). The composite material three-arc anti-detachment and leakage blocking component (113) includes a metal rubber three-arc anti-detachment and leakage blocking component or a ceramic rubber three-arc anti-detachment and leakage blocking component or a ceramic metal three-arc anti-detachment and leakage blocking component or a metal plastic three-arc anti-detachment and leakage blocking component (115) or a metal nylon three-arc anti-detachment and leakage blocking component. Arc-type anti-loosening and leak-blocking component (445) or metal polymer triple-arc anti-loosening and leak-blocking component (2), when using metal plastic cap anti-jump pulley wide-width shaft plate (252), make a cap anti-jump pulley wide-width shaft plate injection mold (254), the metal plastic cap anti-jump pulley wide-width shaft plate (252) includes metal assembly shaft (452) and plastic cap anti-jump pulley component (256), plastic protective shaft body (454), plastic receiving material body component (455) and plastic material plate (456), put the metal assembly shaft (452) on the cap Positioning the anti-jump pulley widening shaft plate in the injection mold (254) allows both ends of the metal assembly shaft (452) to extend beyond the casting plastic area, ensuring the ends of the metal assembly shaft (452) are not covered by plastic. Plastic is then cast into the anti-jump pulley widening shaft plate injection mold (254), making the cast portion of the assembly shaft (9) an integral part of the plastic cover anti-jump pulley (256), plastic protective shaft body (454), plastic receiving material body (455), and plastic material carrier plate (456). The metal assembly shaft (452) The end fastening connecting shaft assembly (500) allows the metal assembly shaft (452) of the metal plastic cover anti-jump pulley widening shaft plate (252) to bear strong transport tension, so that the plastic cover anti-jump pulley assembly (256), plastic protective shaft body (454), plastic material receiving body assembly (455) and plastic material carrying plate (456) form a plastic protective metal assembly shaft widening shaft plate (257). When manufacturing composite material three-arc anti-detachment and leakage blocking part (113), a mold (572) for manufacturing composite material three-arc anti-detachment and leakage blocking part is set.The composite material three-arc anti-detachment and leakage blocking component (113) includes a metal assembly belt shaft (452) and a non-metallic encapsulation body (451). The composite material three-arc anti-detachment and leakage blocking component mold (572) includes a hollow area structure component for producing the non-metallic encapsulation body (573), a lower mold shell (514), a middle mold shell (577), and an upper mold shell (499). The lower mold shell (514), the middle mold shell (577), and the upper mold shell (499) are provided with a structure for fixing the metal assembly belt shaft (483) and a structure for fixing the non-metallic encapsulation body. The structure is a hollow area component of a non-metallic composite material. After positioning the fixed metal assembly shaft structure (483) and the hollow area component of the non-metallic composite material on the lower shell (514), middle shell (577), and upper shell (499) of the mold, the non-metallic composite material (451) is poured into the mold, making the non-metallic composite material (451) and the metal assembly shaft (452) a single unit. The hollow area component of the non-metallic composite material (451) is then removed to form a hollow composite material three-arc leak-proof component (539). The anti-jamming chain conveyor device for the material passage space of the excavator according to claim 1 is characterized in that: The concave arc (544) of the front anti-jump pulley axle plate (526) is closely fitted to the convex arc (543) of the rear anti-jump pulley axle plate (526). The center line of the convex arc (543) of the rear anti-jump pulley axle plate and the center line of its own belt shaft (9) are the same as the center line of the concave arc (544) of the front anti-jump pulley axle plate. The concave arc (544) of the front anti-jump pulley axle plate is closely fitted to the rear anti-jump pulley axle plate. (526) The front convex arc (543) of the cover anti-jump pulley axle plate engages and rotates around the same axis to prevent material leakage. The rear concave arc (544) of the cover anti-jump pulley axle plate is provided with a rear concave arc sealing groove (273) or the front convex arc (543) of the cover anti-jump pulley axle plate is provided with a front convex arc sealing groove (286). The rear concave arc sealing groove (273) of the cover anti-jump pulley axle plate includes a material-carrying axle plate sealing groove (61) and / or a cover anti-jump pulley widening axle plate sealing groove (62). The sealing groove (61) and the sealing groove (62) of the cover anti-jump pulley wide-width shaft plate are either separately set or connected as one piece. The cover anti-jump pulley material-carrying shaft plate (526) includes an arc-shaped seal (484). The arc-shaped seal (484) is set in the concave arc sealing groove (273) behind the cover anti-jump pulley shaft plate or in the convex arc sealing groove (286) in front of the cover anti-jump pulley shaft plate. When the shaft plate toothed belt (301) passes through the roller, the arc-shaped seal (484) already has a contact with the shaft plate toothed belt (301). The arc-shaped sealing area is tightly sealed to prevent material leakage and water leakage. It provides sealed protection for the drive gear and belt shaft (9) inside the toothed belt (301) of the shaft plate, and seals the belt surface of the toothed belt (301). The side rail (534) of the material trough is provided with a groove seal (487). The groove seal (487) seals the gap between the widened shaft plate belt (44) and the side rail (534) of the material trough to prevent material from entering the conveyor belt (373), and seals the front, back and left and right sides of the toothed belt (301). The anti-jamming chain conveyor device for the material passage space of the excavator according to claim 1 or 40 is characterized in that: The centerline of the anti-jump pulley widening shaft plate (525) and the material-carrying shaft plate (498) is the same, or the centerlines of the anti-jump pulley widening shaft plate (525) and the material-carrying shaft plate (498) are misaligned. When the centerlines of the anti-jump pulley widening shaft plate (525) and the material-carrying shaft plate (498) are the same, the anti-jump pulley widening shaft plate (525) includes a front convex arc (75) and a rear concave arc (76) of the anti-jump pulley. The centerline of the front convex arc (75) of the anti-jump pulley is the same as the centerline of its own set of belt shafts (9). The front and rear anti-jump pulley widening shaft plates (525) are of the same shape and size. The centerline of the rear concave arc (76) of the anti-jump pulley is the same as the centerline of the rear set of belt shafts (9). The axis of the anti-jump pulley and the axis of the front convex arc (75) of the anti-jump pulley of the group of belt shafts (9) are the same axis. The rear concave arc (76) of the anti-jump pulley and the front convex arc (75) of the next anti-jump pulley with the axis of the group of belt shafts (9) as the axis are closely fastened to each other. After they are closely fastened, the front and rear anti-jump pulley wide belt shaft plate (525) are connected by Z-shaped buckle (477) or by double hole plate connecting piece (478) to form a material-free arc surface sealing material conveying structure (545). Alternatively, the arc surface sealing structure of the material-carrying shaft plate (498) and the anti-jump pulley wide belt shaft plate (525) are coaxial and arc sealing structures, so that the material-carrying shaft plate (526) and the anti-jump pulley wide belt shaft plate (525) of the anti-jump pulley are always in the buckling arc sealing state when passing through the roller. The anti-jamming chain conveyor device for the material passage space of the excavator according to claim 1 or 40 is characterized in that: The cover anti-jump pulley component leakage prevention and widening shaft plate belt conveyor (29) includes a sealing groove (546) of the sealing plate or a sealing groove (547) on the side sill. When the sealing groove (546) of the sealing plate is used, the sealing groove (546) of the sealing plate includes a square sealing groove (548) or an irregular anti-jump sealing groove (549). The sealing groove (546) of the sealing plate is set on the lower end face of the sealing plate (542) facing the cover anti-jump pulley widening shaft plate component (525). The sealing plate (542) includes a sealing plate seal (550). The sealing plate seal (550) is disposed between the sealing plate (542) and the cover anti-jump pulley widening shaft plate (525). The sealing plate sealing groove (546) prevents the sealing plate seal (550) from falling off. The sealing plate seal (550) includes a round bar seal, a square bar seal, a combination seal, or a floating seal (551). When the floating seal (551) is used, an elastic seal (552) is provided on the upper part of the sealing plate sealing groove (546), and a wear-resistant lubricating square bar seal (553) is provided on the lower part of the elastic seal (552). The anti-jamming chain conveyor device for the material passage space of the excavator according to claim 1 is characterized in that: The anti-jump pulley material carrier plate (526) includes a grooved scraper material carrier plate (405) or a boss scraper material carrier plate (404). When the grooved scraper material carrier plate (405) is used, a scraping groove (403) is provided in the middle of the upper part of the anti-jump pulley material carrier plate (526). The scraping groove (403) has a scraping effect on the upper material. When the boss scraper material carrier plate (404) is used, a scraping boss (540) is provided on the body of the anti-jump pulley material carrier plate (526). The scraping boss (540) includes a plastic scraping boss or a metal scraping boss (402) or a rubber scraping boss or a nylon scraping boss or a plastic scraping boss. The metal scraper boss (235) for the material bag or the metal scraper boss for the nylon bag, when the metal scraper boss (235) for the plastic bag is used, the metal scraper boss (235) for the plastic bag includes a full plastic bag metal scraper boss (402) or a partial plastic bag metal scraper boss (402). The metal scraper boss (235) for the plastic bag includes a metal scraper plate (251). The metal scraper plate (251) is separately set or fixedly connected to the assembly belt shaft (9). When the metal scraper plate (251) is fixedly connected to the assembly belt shaft (9), the assembly belt shaft (9) prevents the metal scraper plate (251) from damaging the plastic part of the metal scraper boss (235) for the plastic bag. The anti-jamming chain conveyor device for the material passage space of the excavator according to claim 1 is characterized in that: The material trough side sill (534) includes a maintenance buckle upright plate side sill (446), a front material trough side sill (515), and a rear material trough side sill (68). The front material trough side sill (515) includes a front sill buckle maintenance side sill boss (447), and the rear material trough side sill (68) includes a rear sill buckle maintenance side sill boss (448). Correspondingly, the maintenance buckle upright plate side sill (446) includes a maintenance upright front boss (449) and a maintenance upright rear boss (450). The front boss (449) of the maintenance upright is inserted into the maintenance side boss (447) of the front clasp, and the rear boss (450) of the maintenance upright is inserted into the maintenance side boss (448) of the rear clasp. The maintenance side boss (447), the maintenance side boss (448), the front boss (449), and the rear boss (450) of the maintenance upright are provided with slotted clasp pin holes (453). After the front boss (449) of the maintenance upright is inserted into the maintenance side boss (447) of the front clasp, the upper and lower slotted clasp pin holes (453) are aligned. After the rear boss (450) of the upright bar is inserted into the maintenance side boss (448) of the rear buckle, the upper and lower groove pin holes (453) are aligned. The material trough side bar (534) includes the maintenance groove pin (457). The maintenance groove pin (457) is inserted into the groove pin hole (453) so that the maintenance buckle upright bar side bar (446), the front material trough side bar (515) and the rear material trough side bar (68) form a maintenance transport belt material trough (458). When the cover anti-jump pulley material bearing plate (526) needs maintenance, the maintenance groove pin is inserted into the maintenance side bar. (457) Remove the maintenance buckle shaft plate side plate (446) from the conveyor belt (373) and the material trough side plate (534), so that the front material trough side plate (515) and the rear material trough side plate (68) create maintenance space. Remove the damaged cover anti-jump pulley material bearing shaft plate (526) from the maintenance space, repair and assemble it. The maintenance buckle shaft plate side plate (446) is set separately or the maintenance buckle shaft plate side plate (446) is equipped with a pull-out material trough fixing guide wheel mechanism (538). The guide wheel (299) on the side of the guide trough is set in the pull-out material trough fixing guide. When the guide wheel (299) on the guide wheel mechanism (538) needs maintenance, the connecting maintenance groove pin (457) is removed, so that the maintenance buckle plate side block (446) is separated from the conveyor belt (373) and the material trough side block (534), and the damaged guide wheel (299) is removed for maintenance and assembly. Alternatively, maintenance space is created between the front material trough side block (515) and the rear material trough side block (68), and the guide wheel (299) is repaired and assembled in the maintenance space. The anti-jamming chain conveyor device for the material passage space of the excavator according to claim 1 is characterized in that: The front material chute side sill (515) includes a front sill buckle maintenance side sill recess (464), the rear material chute side sill (68) includes a rear sill buckle maintenance side sill recess (414), and the corresponding maintenance buckle upright shaft plate side sill (446) includes a maintenance upright front boss (449) and a maintenance upright rear boss (450). The front boss (449) of the maintenance upright is inserted into the maintenance side recess (464) of the front clasp, and the rear boss (450) of the maintenance upright is inserted into the maintenance side recess (414) of the rear clasp. The maintenance side recess (464), the maintenance side recess (414), the front boss (449), and the rear boss (450) of the maintenance upright are provided with slotted clasp pin holes (453). After the front boss (449) of the maintenance upright is inserted into the maintenance side recess (464), the upper and lower slotted clasp pin holes (453) are aligned to form the front slotted clasp pin. After the hole (272) and the rear boss (450) of the maintenance upright are inserted into the rear buckle maintenance side buckle recess (414), the upper and lower groove buckle pin holes (453) are aligned to form the rear groove buckle pin hole (69). The material trough side sill (534) includes the maintenance groove buckle pin (457). The maintenance groove buckle pin (457) is inserted into the front groove buckle pin hole (272) and the rear groove buckle pin hole (69). The maintenance buckle upright shaft plate side sill (446), the front material trough side sill (515) and the rear material trough side sill (68) are connected to form the maintenance transport belt material trough (458). When the cover anti-jump pulley material-carrying shaft plate (526) needs maintenance, the connecting maintenance groove pin (457) is removed, so that the maintenance buckle shaft plate side plate (446) is disengaged from the material trough side plate (534), creating maintenance space between the front material trough side plate (515) and the rear material trough side plate (68). The damaged cover anti-jump pulley material-carrying shaft plate (526) is removed from the maintenance space for maintenance and assembly. The maintenance buckle shaft plate side plate (446) is set separately or the maintenance buckle shaft plate side plate (446) is equipped with a pull-out material trough fixing guide wheel mechanism (538). The guide wheel (299) on the side of the guide trough is set on the pull-out guide wheel mechanism (538). When the guide wheel (299) on the side of the guide trough needs to be repaired, the connecting maintenance groove pin (457) is taken out, so that the maintenance buckle plate side block (446) is separated from the trough side block (534), and the damaged guide wheel (299) on the side of the guide trough is taken out for repair and assembly, or the front trough side block (515) and the rear trough side block (68) are made to create a maintenance space, and the guide wheel (299) on the side of the guide trough is repaired and assembled in the maintenance space. The anti-jamming chain conveyor device for the material passage space of the excavator according to claim 1 is characterized in that: The front material trough side sill (515) includes a bottom plane concave (562) and / or a bottom arc concave (563). When the bottom arc concave (563) is used, the corresponding maintenance upright front protrusion (449) includes a top arc protrusion (564). The bottom arc concave (563) and the top arc protrusion (564) are engaged to form a vertical arc platform (565) of the trough sill. When the material trough side sill (534) rises as one end of the ground needs to be excavated, the bottom arc concave (563) of the front material trough side sill (515) rotates around the top arc protrusion (564) and rises upward. When the ground tilts downward, the bottom arc concave (563) of the front material trough side sill (515) rotates around the top arc protrusion (564) and bends downward.