A mine rubber belt conveyor

Abstract

This application relates to the field of transportation equipment technology and discloses a mining belt conveyor, including two guide vanes. The fixed ends of the two guide vanes are movably disposed within the connecting cavity of the protective housing, and the free ends of the two guide vanes are mutually abutting. The two guide vanes are symmetrically arranged, and both guide vanes are designed to slope downwards from back to front and from outside to inside. Each guide vane includes a main body and connecting parts. Several connecting parts are fixedly connected to the side wall of the main body, and the connecting parts are connected to the side wall of the protective housing by bolts. When replacing guide vanes, this invention only requires removing the old guide vanes from the left and right sides of the protective housing and replacing them with new ones. The replacement of the guide vanes does not interfere with the normal operation inside the protective housing, thus eliminating the need to stop the conveying mechanism and effectively ensuring its working efficiency.

Description

Technical Field

[0001] This application relates to the field of transportation equipment technology, and in particular to a mining belt conveyor. Background Technology

[0002] Mining belt conveyors, also known as belt conveyors, are core equipment used in mining production for the continuous transportation of bulk materials (such as raw coal, ore, gangue, etc.). They use a ring conveyor belt as the load-bearing and traction component, and under the action of the drive device, they realize the long-distance, large-capacity, and high-efficiency transportation of materials from the loading point to the unloading point.

[0003] The tail guard is installed at the tail of the belt conveyor and is a mandatory safety protection device that effectively reduces unplanned downtime caused by personnel injury accidents, equipment jamming or damage, and provides basic safety assurance for continuous and efficient production.

[0004] The guide vane is installed on the inner side of the tail cover and above the loading point of the conveyor belt. It can concentrate and guide the material falling from the previous equipment (such as the transfer machine) to the center line of the conveyor belt, preventing belt deviation caused by uneven material loading. At the same time, the inclined surface of the guide vane slows down the speed and impact of the falling material, protects the conveyor belt from direct damage by large pieces of material, and reduces dust.

[0005] However, existing mining belt conveyors still have some defects during use: First, as the loading point of the belt conveyor, the guide vanes are constantly subjected to material impact and are prone to wear, requiring frequent replacement. However, the guide vanes are fixed to the inside of the cover with bolts, and the panel of the tail cover must be removed during replacement. Moreover, the replacement operation directly affects the internal space of the tail cover, so the machine must be stopped for replacement, which affects work efficiency. Second, during the process of material falling, the impact force of the material acts on the free end of the guide vanes and is transmitted to the fixed end of the guide vanes connected to the tail cover, causing the guide vanes to be prone to twisting or even tearing, affecting the material carrying effect of the conveyor belt. Summary of the Invention

[0006] This application proposes a mining belt conveyor that can change the connection position between the protective cover and the guide vane without stopping the machine to replace the guide vane, effectively ensuring the working efficiency of the conveying mechanism. At the same time, it is designed with moving parts and auxiliary components to enhance the support and limiting effect on the guide vane and improve the impact resistance of the guide vane, thereby solving the above-mentioned technical problems.

[0007] To achieve the above objectives, this application adopts the following technical solution: a mining belt conveyor, comprising:

[0008] The protective housing has connecting cavities on both its left and right side walls;

[0009] The guide wing plate has two components, with the fixed ends of the two guide wing plates movably disposed within the connecting cavity of the protective cover housing. The free ends of the two guide wing plates are fitted together. The two guide wing plates are symmetrically arranged, and the two guide wing plates are designed to slope downwards from back to front and from outside to inside. The guide wing plate includes a main body and connecting components. Several connecting components are fixedly connected to the side wall of the main body, and the connecting components are connected to the side wall of the protective cover housing by bolts.

[0010] Furthermore, it also includes a conveying mechanism, one end of which is disposed inside the protective housing. The conveying mechanism includes:

[0011] The tail frame and the tail roller are mounted on the top of the tail frame, and the tail frame and the tail roller together constitute the tail of the conveying mechanism.

[0012] The head frame and the head roller are mounted on the top of the head frame, and the head frame and the head roller together constitute the head of the conveying mechanism.

[0013] Conveyor belts are movably fitted onto the tail roller and the head roller;

[0014] A support frame is provided between the tail frame and the head frame, and the top of the support frame abuts against the upper bottom surface of the conveyor belt.

[0015] Furthermore, the protective housing and the guide wing plate are components of the protective housing mechanism, and the protective housing mechanism also includes an observation window, which is fixedly provided on the rear side wall of the protective housing.

[0016] Furthermore, the protective cover mechanism also includes movable parts. Movable grooves are provided on the upper and lower walls of the protective cover housing located in the connecting cavity. The movable parts are set in the movable grooves by movable springs. Two vertically arranged movable parts constitute a set of movable parts. A main body is provided with several sets of movable parts. The top and bottom surfaces of the main body respectively abut against the movable parts, and the edge of the movable part wall that abuts against the main body is arc-shaped.

[0017] Furthermore, the protective cover mechanism also includes an auxiliary component, which is fixedly disposed on the front side wall of the protective cover housing and is located below the free end of the guide wing plate.

[0018] Furthermore, the auxiliary component includes:

[0019] Side plates, the number of which is two, and the side plates are located on the left and right sides of the conveyor belt respectively;

[0020] A bottom plate is fixedly connected between the two side plates, and the bottom plate is located below the lower bottom surface of the conveyor belt. The top surface of the bottom plate is inclined.

[0021] A top plate is fixedly connected between the two side plates, and the top plate is located above the upper top surface of the conveyor belt. The top surface of the top plate is in contact with the free end of the guide wing plate.

[0022] The cleaning components are provided in the side plate, bottom plate and top plate, and the two cleaning components are designed to be opposite and staggered.

[0023] Furthermore, the cleaning component includes:

[0024] The movable plate has a movable hole on one side wall and a movable groove on the other side inner wall. The interior of the base plate is movably engaged with the movable plate through the movable hole and the movable groove, and the exterior of the base plate is in contact with the movable plate. The two movable plates in different groups move in opposite directions.

[0025] A driving component, comprising a driving piston and a driving rod, wherein the driving piston is fixedly disposed inside the base plate, one end of the driving rod is movably connected to the interior of the driving piston, and the other end of the driving rod is fixedly connected to the movable plate;

[0026] A deformable component, one end of which passes through a drive rod and is fixedly sleeved with a movable plate, and the port of the deformable component is connected to the internal space of the bottom plate. The other end of the deformable component passes through a side plate and is fixedly sleeved with a top plate, and the port of the deformable component is connected to the external space of the top plate. Two one-way air valves are provided inside the deformable component, and the two one-way air valves are located at both ends of the foldable section of the deformable component. The airflow direction of the one-way air valves is from the top plate to the bottom plate.

[0027] By setting two sets of cleaning components within the auxiliary components, each cleaning component consists of a moving plate, a driving component, and a deformable component. During use, the driving component is activated to move the moving plate back and forth, thereby cleaning the outer surface of the base plate and preventing impurities from accumulating on the base plate and affecting its continued use. At the same time, the movement of the moving plate can synchronously control the expansion and contraction of the foldable section of the deformable component to compensate for the adsorption performance of the deformable component on the free end of the guide vane, thereby enhancing the stabilizing effect of the top plate on the guide vane and ensuring the splicing stability of the two guide vanes during operation.

[0028] The beneficial effects of this invention are as follows:

[0029] This application provides a mining belt conveyor. By configuring the protective shell, connecting cavities are provided on the left and right walls of the protective shell. The fixed ends of two guide vanes are bolted to the protective shell, and the free ends of the two guide vanes are fitted together. During material feeding, the splicing design of the two guide vanes effectively guides the material to fall to the center line of the conveyor belt, ensuring centered material guidance and reducing the possibility of conveyor belt deviation due to uneven loading. When replacing, it is only necessary to remove the old guide vanes from the left and right sides of the protective shell and replace them with new guide vanes. Moreover, the replacement of the guide vanes does not interfere with the normal operation of the protective shell, so the conveying mechanism does not need to be stopped, effectively ensuring the working efficiency of the conveying mechanism.

[0030] By opening movable slots on both the upper and lower walls of the protective housing located within the connecting cavity, and by setting the movable component within the movable slot via a movable spring and abutting against the guide wing plate, the movable component increases the vertical clamping force on the guide wing plate after it is installed, effectively enhancing the stability of the guide wing plate. When the guide wing plate vibrates due to material impact, the slight movement of the movable component dissipates the vibration energy of the guide wing plate, causing the vibration energy transmitted to the protective housing to attenuate, thereby improving the impact resistance of the guide wing plate and achieving stress dispersion between the fixed end of the guide wing plate and the wall surface of the protective housing, preventing excessive stress concentration between the two, which could lead to twisting or even tearing.

[0031] By setting auxiliary components on the front wall of the protective cover, the auxiliary components are composed of side plates, bottom plates, and top plates. The bottom plate is set below the lower bottom surface of the conveyor belt, and the top plate is set above the upper top surface of the side plates. The top surface of the top plate is in contact with the bottom surface of the free end of the guide vane. When in use, the top plate supports the free end of the guide vane, further improving the impact resistance of the guide vane. At the same time, the bottom plate is used to clean the lower bottom surface of the conveyor belt, preventing excessive impurities on the conveyor belt from entering the interior of the protective cover and affecting the normal operation of the tail roller driving the conveyor belt. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort:

[0033] Figure 1 This is a three-dimensional structural diagram of the entire invention;

[0034] Figure 2 This is a three-dimensional structural diagram of the protective cover mechanism in this invention, located in cross-section.

[0035] Figure 3 This is a three-dimensional structural diagram of the conveying mechanism in this invention;

[0036] Figure 4 This is a three-dimensional structural diagram of the protective cover mechanism in this invention;

[0037] Figure 5 This is a frontal cross-sectional perspective view of the protective cover mechanism in this invention.

[0038] Figure 6 In this invention Figure 5 Enlarged structural diagram at point A;

[0039] Figure 7 In this invention Figure 5 Enlarged structural diagram at point B;

[0040] Figure 8 This is a side cross-sectional perspective view of the protective cover mechanism of the present invention.

[0041] Figure 9 In this invention Figure 8 Enlarged structural diagram at point C;

[0042] Figure 10 This is a three-dimensional structural diagram showing the disassembled protective housing and observation window in this invention;

[0043] Figure 11 This is a three-dimensional structural diagram of the guide vane in this invention;

[0044] Figure 12 This is a three-dimensional structural diagram of the auxiliary components in this invention;

[0045] Figure 13 This is a three-dimensional structural diagram of the cleaning component in this invention;

[0046] Figure 14 This is a cross-sectional three-dimensional structural view of the auxiliary component in this invention;

[0047] Figure 15 In this invention Figure 14 Enlarged structural diagram at point D.

[0048] In the diagram: 1. Conveying mechanism; 11. Tail frame; 12. Tail roller; 13. Head frame; 14. Head roller; 15. Conveyor belt; 16. Support frame; 2. Protective cover mechanism; 21. Protective cover housing; 22. Observation window; 3. Guide wing plate; 31. Main body component; 32. Connecting component; 4. Moving component; 5. Auxiliary component; 51. Side plate; 52. Bottom plate; 53. Top plate; 6. Moving plate; 7. Driving component; 71. Driving piston; 72. Driving rod; 8. Deformation component; 9. Cleaning assembly. Detailed Implementation

[0049] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0050] Example 1: A mining belt conveyor, such as Figures 1-3 The conveyor system includes a conveyor belt 15, with a tail roller 12 and a head roller 14 respectively fitted at both ends. The conveyor belt 15 serves to carry materials and transmit power. The tail roller 12 is mounted on the top of the tail frame 11, and the head roller 14 is mounted on the top of the head frame 13. A support frame 16 is provided between the tail frame 11 and the head frame 13, and the top of the support frame 16 abuts against the upper bottom surface of the conveyor belt 15 to support the conveyor belt 15 and the materials on it. The tail frame 11, tail roller 12, head frame 13, head roller 14, conveyor belt 15, and support frame 16 constitute the conveying mechanism 1. The tail frame 11 and tail roller 12 constitute the tail (redirection end) of the conveying mechanism 1, which is the loading point for the materials transported by the conveyor belt 15. The head frame 13 and head roller 14 constitute the head (drive end) of the conveying mechanism 1, which is the unloading point for the materials transported by the conveyor belt 15.

[0051] like Figures 1-4 , Figure 10 The tail of the conveyor mechanism 1 is equipped with a protective cover mechanism 2, which includes a protective cover housing 21 and an observation window 22. The protective cover housing 21 is made of high-strength, corrosion-resistant metal material to ensure its sturdiness and durability. At the same time, the size of the protective cover housing 21 can fully enclose the tail of the conveyor mechanism 1, so as to scientifically expand the coverage area of ​​the protective cover housing 21. This can prevent personnel from accidentally touching the tail roller 12 and other structures, and can also prevent large foreign objects from getting stuck in the tail roller 12 and causing a "roller crushing" accident. The rear side wall of the protective cover housing 21 is detachable, which is the maintenance door. An observation window 22 is fixedly installed on the rear side wall of the protective cover housing 21, which can facilitate operators to check the equipment operation status in real time and facilitate equipment maintenance and repair. Under the premise of ensuring safety, it does not affect the normal operation of the equipment. In summary, the design significantly improves the safety performance of the equipment, effectively reduces the risk of safety accidents caused by equipment operation, and creates a safer working environment for the staff.

[0052] like Figures 4-9The protective cover mechanism 2 also includes guide vanes 3. Both the left and right walls of the protective cover housing 21 have connecting cavities. There are two guide vanes 3, with their fixed ends movably positioned within the connecting cavities of the protective cover housing 21. The free ends of the two guide vanes 3 are fitted together, symmetrically arranged, and designed to slope downwards from back to front and from outside to inside, forming a "V" shape. This design effectively guides the material to the centerline of the conveyor belt 15 during unloading, ensuring centered guidance and reducing the possibility of the conveyor belt 15 running off-center due to uneven loading. It is important to maintain a reasonable gap of 10-20 mm between the lower end of the guide vane 3 and the upper top surface of the conveyor belt 15 to prevent scratching and excessive impact from the material. Figures 10-11 The guide wing plate 3 includes a main body 31 and connecting parts 32. Several connecting parts 32 are fixedly connected to the side wall of the main body 31, and the connecting parts 32 are connected to the side wall of the protective housing 21 by bolts. Thus, when replacing, it is only necessary to remove the old guide wing plate 3 from the left and right sides of the protective housing 21 and replace it with a new guide wing plate 3. Moreover, the replacement of the guide wing plate 3 does not interfere with the normal operation inside the protective housing 21, so the conveying mechanism 1 does not need to be stopped, effectively ensuring the working efficiency of the conveying mechanism 1.

[0053] Example 2, based on Example 1, such as Figures 8-9 The protective cover mechanism 2 also includes movable parts 4. Movable grooves are formed on the upper and lower walls of the protective cover housing 21 located within the connecting cavity. The movable parts 4 are positioned within these grooves via movable springs. Two vertically arranged movable parts 4 constitute a set of movable parts 4, and each main body 31 is provided with several sets of movable parts 4. The top and bottom surfaces of the main body 31 respectively abut against the movable parts 4, and the edges of the movable parts 4 abutting against the main body 31 are arc-shaped, ensuring that the movable parts 4 do not interfere with the insertion of the main body 31 into the connecting cavity. In summary, when the guide wing plate 3 is installed... After being placed inside the protective housing 21, the vertical clamping force on the guide wing plate 3 can be increased by the movable part 4, which effectively enhances the stability of the guide wing plate 3. After the guide wing plate 3 is vibrated by the impact of the material, the slight movement of the movable part 4 will dissipate the vibration energy of the guide wing plate 3, causing the vibration energy transmitted to the protective housing 21 to decrease, thereby improving the impact resistance of the guide wing plate 3 and realizing the stress dispersion between the fixed end of the guide wing plate 3 and the wall of the protective housing 21, preventing the excessive stress concentration between the two and the twisting or even tearing.

[0054] Example 3, based on Example 2, such as Figures 5-7The protective cover mechanism 2 also includes an auxiliary component 5. The auxiliary component 5 is fixedly installed on the front wall of the protective cover housing 21, and is located below the free end of the guide vane 3. It supports the free end of the guide vane 3, further improving the impact resistance of the guide vane 3. The auxiliary component 5 includes a side plate 51, a bottom plate 52, and a top plate 53. Figures 12-15 There are two side plates 51, located on the left and right sides of the conveyor belt 15 respectively. A base plate 52 is fixedly connected between the two side plates 51, and the base plate 52 is located below the lower bottom surface of the conveyor belt 15. The top surface of the base plate 52 is inclined, and a reasonable gap of 10-20 mm is maintained between the highest point of the top surface of the base plate 52 and the lower bottom surface of the conveyor belt 15. This not only prevents scratching the conveyor belt 15, but also cleans impurities attached to the conveyor belt 15, preventing excessive impurities from entering the protective housing 21 and affecting its normal operation. In operation, a top plate 53 is fixedly connected between the two side plates 51, and the top plate 53 is located above the upper top surface of the conveyor belt 15. The top surface of the top plate 53 is in contact with the free end of the guide wing plate 3, and a reasonable gap of 10-20 mm is maintained between the bottom surface of the top plate 53 and the upper top surface of the conveyor belt 15. This can effectively support the free end of the guide wing plate 3, further improve the impact resistance of the guide wing plate 3, and prevent scratching the conveyor belt 15. In addition, to enhance the cushioning effect, a rubber pad can be attached to the top surface of the top plate 53 that is in contact with the free end of the guide wing plate 3.

[0055] Example 4, based on Example 3, such as Figures 5-7 The auxiliary component 5 also includes a cleaning assembly 9. Two cleaning assemblies 9 are provided within the side plate 51, bottom plate 52, and top plate 53, and these two cleaning assemblies 9 are designed to be opposite and staggered. While cleaning the bottom plate 52, they also enhance the stability of the top plate 53 on the guide vane 3. The cleaning assembly 9 includes a moving plate 6, a driving component 7, and a deformation component 8, such as... Figures 12-15A movable hole is provided on one side wall of the base plate 52, and a movable groove is provided on the inner wall of the other side of the base plate 52. The interior of the base plate 52 is movably engaged with the movable plate 6 through the movable hole and the movable groove, and the exterior of the base plate 52 is in contact with the movable plate 6. The two movable plates 6 located in different groups move in opposite directions, that is, the two movable plates 6 can only move in the same direction or in opposite directions. The driving component 7 includes a driving piston 71 and a driving rod 72. The driving piston 71 is fixedly installed inside the base plate 52. One end of the driving rod 72 is movably connected to the interior of the driving piston 71, and the other end of the driving rod 72 is fixedly connected to the movable plate 6. The driving component 7 drives the movable plate 6 to move horizontally along the base plate 52, and the range of movement of the movable plate 6 is only half the length of the base plate 52, thereby effectively and timely removing the impurities accumulated on the outer wall of the base plate 52. One end of the deformable component 8 passes through the driving rod 72 and is fixedly sleeved with the movable plate 6. The deformable part 8 is connected to the internal space of the bottom plate 52. The other end of the deformable part 8 passes through the side plate 51 and is fixedly sleeved with the top plate 53. The port of the deformable part 8 is connected to the external space of the top plate 53. The free end of the guide wing plate 3 is above the port. Two one-way air valves are provided inside the deformable part 8. The two one-way air valves are located at both ends of the foldable section of the deformable part 8. The airflow direction of the one-way air valves is from the top plate 53 to the bottom plate 52. When the deformable part 8 is pushed by the moving plate 6 and reciprocates to expand and contract, under the action of the one-way air valves, the gas in the external space of the top plate 53 can be transferred to the inside of the bottom plate 52, thereby enhancing the adsorption effect of the top plate 53 on the guide wing plate 3. This not only ensures the splicing stability of the two guide wing plates 3 during operation, but also further enhances the support and stability effect of the top plate 53 on the guide wing plate 3, thereby ensuring the stability of the guide wing plate 3 in guiding the material.

[0056] The working principle of this invention is as follows:

[0057] If the guide vane 3 is worn and needs to be replaced, simply remove the guide vane 3 from the protective housing 21 and replace it with a new guide vane 3. Since the replacement of the guide vane 3 does not interfere with the normal operation inside the protective housing 21, the conveying mechanism 1 does not need to be stopped, thus effectively ensuring the working efficiency of the conveying mechanism 1.

[0058] When the conveying mechanism 1 is working, the material falls onto the guide vane 3 and is guided to the center line of the conveyor belt 15. During this process, the guide vane 3 vibrates due to the impact of the material. At this time, the movable part 4, under the action of the movable spring, abuts against the fixed end of the guide vane 3. At the same time, the movable part 4 will generate a small movement to dissipate the vibration energy of the guide vane 3, so that the vibration energy transmitted to the protective housing 21 is attenuated, thereby improving the impact resistance of the guide vane 3 and realizing the stress dispersion between the fixed end of the guide vane 3 and the wall of the protective housing 21, preventing excessive stress concentration between the two and twisting or even tearing. Meanwhile, the top plate 53 will support the free end of the guide vane 3, further improving the impact resistance of the guide vane 3. In addition, during the rotation of the conveyor belt 15, the bottom plate 52 will clean the lower bottom surface of the conveyor belt 15 to prevent too many impurities on the conveyor belt 15 from entering the interior of the protective housing 21 and affecting the normal operation of the tail roller 12 driving the conveyor belt 15.

[0059] When impurities accumulate on the base plate 52 and affect its use, the drive component 7 is activated to drive the moving plate 6 to move back and forth, thereby cleaning the outer surface of the base plate 52 in a timely manner. During this process, the movement of the moving plate 6 synchronously controls the expansion and contraction of the foldable section of the deformable component 8 to compensate for the adsorption performance of the deformable component 8 on the free end of the guide wing plate 3, enhance the stabilizing effect of the top plate 53 on the guide wing plate 3, and ensure the splicing stability of the two guide wing plates 3 during operation.

[0060] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A mining belt conveyor, characterized in that, include: The protective housing (21) has connecting cavities on both its left and right side walls; The guide wing plate (3) has two guide wing plates (3), and the fixed ends of the two guide wing plates (3) are movably set in the connecting cavity of the protective shell (21). The free ends of the two guide wing plates (3) are attached to each other. The two guide wing plates (3) are symmetrically arranged. The two guide wing plates (3) are designed to be obliquely downward from back to front and obliquely downward from outside to inside. The guide wing plate (3) includes a main body (31) and a connecting piece (32). Several connecting pieces (32) are fixedly connected to the side wall of the main body (31), and the connecting pieces (32) are connected to the side wall of the protective shell (21) by bolts. The protective housing (21) and the guide wing plate (3) are components of the protective housing mechanism (2), and the protective housing mechanism (2) also includes an observation window (22), which is fixedly provided on the rear side wall of the protective housing (21). The protective cover mechanism (2) also includes an auxiliary component (5). The auxiliary component (5) is fixedly installed on the front side wall of the protective cover housing (21), and the auxiliary component (5) is located below the free end of the guide wing plate (3). The auxiliary component (5) includes: Side plates (51), the number of which is two, and the side plates (51) are located on the left and right sides of the conveyor belt (15) respectively; The bottom plate (52) is fixedly connected between the two side plates (51), and the bottom plate (52) is located below the lower bottom surface of the conveyor belt (15). The top surface of the bottom plate (52) is inclined. Top plate (53), the top plate (53) is fixedly connected between the two side plates (51), and the top plate (53) is located above the upper top surface of the conveyor belt (15). The top surface of the top plate (53) is in contact with the free end of the guide wing plate (3). Cleaning components (9) are provided in the side plate (51), bottom plate (52) and top plate (53), and the two cleaning components (9) are designed to be opposite and staggered; The cleaning component (9) includes: The movable plate (6) has a movable hole on one side wall of the base plate (52) and a movable groove on the other side inner wall. The interior of the base plate (52) is movably engaged with the movable plate (6) through the movable hole and the movable groove, and the exterior of the base plate (52) is in contact with the movable plate (6). The two movable plates (6) located in different groups move in opposite directions. The driving component (7) includes a driving piston (71) and a driving rod (72). The driving piston (71) is fixedly installed inside the base plate (52). One end of the driving rod (72) is movably connected to the inside of the driving piston (71), and the other end of the driving rod (72) is fixedly connected to the moving plate (6). Deformable component (8), one end of which passes through the drive rod (72) and is fixedly sleeved with the moving plate (6), and the port of the deformable component (8) is connected to the internal space of the bottom plate (52). The other end of the deformable component (8) passes through the side plate (51) and is fixedly sleeved with the top plate (53), and the port of the deformable component (8) is connected to the external space of the top plate (53). Two one-way air valves are provided inside the deformable component (8), and the two one-way air valves are located at both ends of the foldable section of the deformable component (8). The airflow direction of the one-way air valves is from the top plate (53) to the bottom plate (52).

2. The mining belt conveyor according to claim 1, characterized in that, It also includes a conveying mechanism (1), one end of which is disposed inside the protective housing (21), the conveying mechanism (1) comprising: Tail frame (11) and tail roller (12), the tail roller (12) is mounted on the top of the tail frame (11), and the tail frame (11) and tail roller (12) constitute the tail of the conveying mechanism (1); The head frame (13) and the head roller (14) are mounted on the top of the head frame (13), and the head frame (13) and the head roller (14) constitute the head of the conveying mechanism (1); The conveyor belt (15) is movably sleeved on the tail roller (12) and the head roller (14). A support frame (16) is provided between the tail frame (11) and the head frame (13), and the top of the support frame (16) abuts against the upper bottom surface of the conveyor belt (15).

3. The mining belt conveyor according to claim 2, characterized in that, The protective cover mechanism (2) also includes a movable part (4). The upper and lower walls of the protective cover housing (21) located in the connecting cavity are provided with movable grooves. The movable part (4) is set in the movable groove by a movable spring. Two vertically arranged movable parts (4) constitute a set of movable parts (4). A main body (31) is provided with several sets of movable parts (4). The top and bottom surfaces of the main body (31) respectively abut against the movable parts (4), and the edge of the wall surface of the movable part (4) abutting against the main body (31) is arc-shaped.

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