Heavy chain scraper conveyor and conveying method

Abstract

The invention relates to the technical field of bulk material conveying machinery, in particular to a heavy chain scraper conveyor and a conveying method.The heavy chain scraper conveyor comprises a steel structure rack, and the inner portion and the outer portion of an assembling guide plate are jointly provided with a buffering guide assembly used for buffering and guiding fed materials; the buffering material guiding assembly comprises a mounting seat fixedly mounted on the inner side end face of the assembling material guiding plate, a first hydraulic groove is formed in the upper end of the buffering material guiding plate, a buffering extrusion plate is slidably mounted in the first hydraulic groove, and a first connecting pipe is arranged in the first hydraulic groove in a penetrating and communicating mode; and the tail end of the first connecting pipe is connected with a hydraulic cylinder body fixedly mounted on the assembling guide plate. Through the design of the buffering material guiding assembly, the triggering limiting extrusion assembly and the pressurizing buffering assembly, the three protection functions of material impact and deviation prevention, leakage prevention and buffering are linked through an oil pressure system, and a self-adaptive mechanism that the larger the impact is, the stronger the protection is is is formed.

Description

Technical Field

[0001] This invention relates to the field of bulk material conveying machinery, and in particular to a heavy-duty chain conveyor and conveying method. Background Technology

[0002] Heavy-duty chain conveyors, as indispensable continuous conveying equipment in many industrial fields such as metallurgy, mining, and building materials, play a crucial role in material handling processes. In various material handling scenarios, overweight materials are extremely common. Items like scrapped cars are often large and structurally complex; large metal components may have high density and weight due to long-term use or special manufacturing processes; and large ores vary significantly in hardness and weight due to different geological formations. Before entering subsequent processing stages, these overweight materials typically need to be remelted to re-refine the metal, or crushed to break them down into sizes suitable for subsequent processing. This material handling process places stringent requirements on the conveying equipment, demanding that it possess the ability to continuously, uniformly, with large capacity, and transport materials over long distances. Continuous conveying ensures a smooth production process and avoids production stoppages caused by material interruptions; uniform conveying helps stabilize the operation of subsequent processing stages, ensuring that processes such as remelting or crushing can be carried out efficiently according to predetermined parameters; the large conveying capacity can meet the needs of large-scale production and improve overall production efficiency; long-distance conveying can adapt to material transfer between different production sites and enhance production flexibility.

[0003] In existing technological solutions, material handling methods are quite diverse, mainly including steel grabbers, magnetic cranes, bulldozers, and dump trucks. Steel grabbers, with their flexible robotic arms and powerful gripping capabilities, can accurately grasp materials of various shapes and sizes; magnetic cranes utilize the principle of magnetic adsorption and are particularly suitable for grasping and handling metallic materials; bulldozers are suitable for the initial sorting and pushing of large areas of material; and dump trucks, with their large loading capacity and convenient transportation method, play an important role in long-distance material transfer. However, in practical applications, these material handling methods also face some problems. Large pieces of heavy waste and baled materials can weigh several tons each. When they are placed on conveyor equipment, they exert a huge impact force on the equipment. Long-term use may lead to malfunctions such as deformation of the conveyor chain plates and breakage of the conveyor chain, affecting the normal operation and service life of the equipment. Summary of the Invention

[0004] The purpose of this invention is to provide a heavy-duty chain conveyor and conveying method. By designing a buffer guide assembly, a trigger limit squeezing assembly, and a pressure buffer assembly, the invention links the three major protective functions of "material impact" and "anti-deviation, anti-leakage, and buffering" through a hydraulic system to form an adaptive mechanism of "the greater the impact, the stronger the protection", thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a heavy-duty chain conveyor and conveying method, comprising a steel structure frame, an overflow skirt fixedly installed at the top of the steel structure frame, an assembly guide plate fixedly installed at the bottom inner side of the overflow skirt, and a buffer guide assembly for buffering and guiding the feeding material is provided on both the inner and outer sides of the assembly guide plate.

[0006] The buffer guide assembly includes a mounting base fixedly installed on the inner end face of the assembly guide plate. A connecting shaft is inserted inside the mounting base. The buffer guide plate is rotatably mounted on the mounting base via the connecting shaft. A first hydraulic groove is opened inside the upper end of the buffer guide plate. A buffer extrusion plate is slidably installed inside the first hydraulic groove. A first connecting pipe is inserted and communicated inside the first hydraulic groove. The end of the first connecting pipe is connected to a hydraulic cylinder body fixedly installed on the assembly guide plate.

[0007] Preferably, a plug is slidably mounted inside the hydraulic cylinder, a connecting rod is fixedly mounted on the upper end face of the plug, and a hinge seat that is slidably mounted on the back of the buffer guide plate is mounted on the top end of the connecting rod.

[0008] Preferably, a frame beam is fixedly installed on the inner side of the steel structure frame, an impact-resistant and wear-resistant guide rail is fixedly installed at the upper end of the middle position of the frame beam, and lubrication-free support rollers are installed on both the left and right sides of the upper end face of the frame beam.

[0009] Preferably, the upper end of the lubrication-free support roller is provided with a conveyor chain, the upper end of the conveyor chain is rigidly connected with a T-shaped conveyor chain plate, an H-shaped steel plate is fixedly installed at the bottom of the middle position of the T-shaped conveyor chain plate, and a wear-resistant sliding plate is fixedly installed at the bottom of the H-shaped steel plate.

[0010] Preferably, the assembly guide plate is provided with a trigger limiting extrusion assembly on both its inner and outer sides. The trigger limiting extrusion assembly includes a second hydraulic groove opened on the inner end face of the steel structure frame. A trigger assembly guide block is slidably installed inside the second hydraulic groove. The second hydraulic groove is interconnected with the hydraulic cylinder through a second connecting pipe.

[0011] Preferably, the trigger limiting extrusion assembly further includes an assembly wheel seat fixedly installed on the bottom end face of the trigger assembly guide block, and an anti-skew guide post is rotatably installed inside the assembly wheel seat.

[0012] Preferably, the trigger limiting extrusion assembly further includes extrusion oil grooves at both ends of the T-shaped conveyor chain plate, and a trigger pressurizing block is slidably installed inside the extrusion oil groove. The contact end between the trigger pressurizing block and the trigger assembly guide block is arc-shaped.

[0013] Preferably, the T-shaped conveyor chain plate is provided with a pressure buffer assembly both inside and outside. The pressure buffer assembly includes a hydraulic groove opened at the upper end of the inside of the T-shaped conveyor chain plate. A buffer plate is slidably installed inside the hydraulic groove. A reinforcing crossbar is fixedly installed at the upper end of the buffer plate. The two ends of the hydraulic groove are connected to the extrusion oil groove through pressure oil pipes.

[0014] Preferably, the pressurization buffer assembly further includes elastic arc-shaped wing plates fixed on both sides of the bottom end of the T-shaped conveyor chain plate. The elastic arc-shaped wing plates have an oil storage tank inside, and the oil storage tank is connected to the oil pressure tank through a stamping conduit.

[0015] Preferably, a conveying method for a heavy-duty chain conveyor includes the following steps:

[0016] S1: Heavy-duty chain conveyor can feed and transport materials horizontally and at an incline. Feeding methods include steel grabbers, disk cranes, bulldozers, dump trucks, etc.

[0017] S2: Large-sized heavy waste and packaged materials will first fall onto the overflow skirt and assembly guide plate. The material falling onto the assembly guide plate will impact the buffer guide component, and the impact force will be converted into hydraulic pressure through the mechanical structure.

[0018] S3: The hydraulic oil of the trigger limit extrusion component acts as the "power medium" and synchronously transmits pressure to the pressurization buffer component, pushing the anti-skew guide column to strengthen the limit of the conveyor chain, driving the buffer plate to deepen the impact absorption, and extruding the oil storage tank to make the adjacent arc-shaped wing plates on the same side fit together.

[0019] S4: The T-type conveyor chain plate carries the received material and delivers it to the electric furnace, rotary kiln, alloy melting furnace, crusher or other downstream conveying equipment.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. This invention, through the design of the buffer guide component, the trigger limit extrusion component, and the pressure buffer component, links the three major protective functions of "material impact" and "anti-deviation, anti-leakage, and buffering" through the hydraulic system, forming an adaptive mechanism of "the greater the impact, the stronger the protection", rather than the traditional fixed protection; at the same time, the buffer guide component, the trigger limit extrusion component, and the pressure buffer component are linked through the hydraulic system to form a complete adaptive closed loop.

[0022] 2. The buffer guide assembly of this invention reduces the direct impact force on the chain plate after the material passes through the buffer guide plate and is hydraulically buffered, thus reducing the probability of chain plate bending, deformation, and cracking. This eliminates the need for frequent chain plate replacements. At the same time, after the impact force is absorbed by the hydraulic buffer, the vibration transmitted to the motor, reducer, conveyor chain, and other transmission components is greatly reduced, avoiding problems such as bearing damage and conveyor chain pitch elongation caused by high-frequency impacts. This reduces the replacement and maintenance costs of the transmission system. Furthermore, the rotating design of the buffer guide plate and the flexible force relief of the hydraulic buffer allow large pieces of heavy waste and packaged materials to fall smoothly onto the chain plate without getting stuck between the guide trough and the chain plate due to vertical impacts, reducing production line downtime caused by material jamming.

[0023] 3. This invention uses anti-skew guide posts installed on the assembly wheel seat to limit the conveyor chain, thereby preventing the T-shaped conveyor chain plate from shifting due to impact, which would affect the stable operation of the conveyor. By limiting the conveyor chain with anti-skew guide posts, the problem of T-shaped conveyor chain plate shifting due to impact can be effectively prevented, ensuring the stable operation of the conveyor, reducing equipment failures and downtime caused by conveyor chain shift, and improving production efficiency.

[0024] 4. The trigger limit extrusion component set in this invention can generate corresponding oil pressure inside the pressure buffer component when the material impacts the pressure buffer component, so as to better cope with the impact of the falling heavy object. When the material impacts the buffer guide plate, it can not only be buffered by the hydraulic system, but also generate corresponding oil pressure inside the pressure buffer component, which further enhances the ability to cope with the impact of the falling heavy object, reduces the damage of the material impact to the equipment structure, and extends the service life of the equipment. Attached Figure Description

[0025] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 This is an overall structural view of the conveyor of the present invention;

[0027] Figure 2 This is a side view of the conveyor BB section of the present invention.

[0028] Figure 3 This is a schematic diagram of the internal structure of the buffer guide plate of the present invention;

[0029] Figure 4 This is a schematic diagram of the internal structure of the hydraulic cylinder of the present invention;

[0030] Figure 5 For the present invention Figure 4 A magnified view of the structure at point A in the middle;

[0031] Figure 6 This is a schematic diagram of the internal structure of the T-shaped conveyor chain plate of the present invention;

[0032] Figure 7 This is a schematic diagram of the pressure buffer assembly structure of the present invention;

[0033] Figure 8 For the present invention Figure 7 A magnified schematic diagram of the structure at point B in the middle;

[0034] Figure 9 This is a schematic diagram of the rear structure of the steel frame of the present invention.

[0035] Explanation of reference numerals in the attached figures:

[0036] 1. Steel frame structure; 2. Frame crossbeam; 3. Overflow skirt; 4. Assembly guide plate; 5. Buffer guide assembly; 501. Mounting base; 502. Buffer guide plate; 503. Connecting shaft; 504. Buffer extrusion plate; 505. First hydraulic groove; 506. Hinge seat; 507. First connecting pipe; 508. Hydraulic cylinder body; 509. Connecting rod; 510. Plug body; 6. Trigger limit extrusion assembly; 601. Second connecting pipe; 602. Second hydraulic groove; 603. Trigger assembly 604. Guide block; 605. Assembly wheel seat; 606. Anti-skew guide post; 607. Trigger pressure block; 608. Extrusion oil groove; 7. T-shaped conveyor chain plate; 8. Pressure buffer assembly; 801. Reinforcing crossbar; 802. Buffer plate; 803. Hydraulic groove; 804. Stamping guide pipe; 805. Pressure oil pipe; 806. Oil storage tank; 807. Elastic arc-shaped wing plate; 9. H-shaped steel plate; 10. Wear-resistant sliding plate; 11. Impact-resistant and wear-resistant guide rail; 12. Lubrication-free support roller; 13. Conveyor chain. Detailed Implementation

[0037] 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.

[0038] This invention provides a technical solution:

[0039] Please see Figures 1 to 5A heavy-duty chain conveyor includes a steel structure frame 1, an overflow skirt 3 fixedly installed at the top of the steel structure frame 1, an assembly guide plate 4 fixedly installed at the bottom inner side of the overflow skirt 3, and a buffer guide assembly 5 for buffering and guiding the feeding material is provided on both the inner and outer sides of the assembly guide plate 4.

[0040] The buffer guide assembly 5 includes a mounting base 501 fixedly installed on the inner end face of the assembly guide plate 4. A connecting shaft 503 is inserted inside the mounting base 501. A buffer guide plate 502 is rotatably mounted on the mounting base 501 via the connecting shaft 503. A first hydraulic groove 505 is opened inside the upper end of the buffer guide plate 502. A buffer extrusion plate 504 is slidably installed inside the first hydraulic groove 505. A first connecting pipe 507 is passed through and communicates inside the first hydraulic groove 505. The end of the first connecting pipe 507 is connected to a hydraulic cylinder 508 fixedly installed on the assembly guide plate 4. A plug 510 is slidably installed inside the hydraulic cylinder 508. A connecting rod 509 is fixedly installed on the upper end face of the plug 510. A hinge seat 506 fixed to the back of the buffer guide plate 502 is installed at the top of the connecting rod 509.

[0041] By adopting the above technical solution, when feeding the heavy-duty chain conveyor, materials are added by means of steel grabbers, disk cranes, bulldozers, dump trucks, etc. Large pieces of heavy waste and baled materials will first fall onto the overflow skirt 3 and the assembly guide plate 4. At the same time, the material falling onto the assembly guide plate 4 will impact the buffer guide plate 502. The force generated by the impact will squeeze the hydraulic oil inside the first hydraulic tank 505 through the buffer guide plate 502. Under the action of squeezing, the oil inside the first hydraulic tank 505... The material flows into the hydraulic cylinder 508 through the first connecting pipe 507. The compression of the oil can buffer and dampen the vibration. At the same time, the inclined setting of the overflow skirt 3 and the buffer guide plate 502 guides the falling material to move along the tangential direction through the inclined installation structure, avoiding vertical impact and thus improving the impact resistance. The overflow skirt 3 and the inclined buffer guide plate 502 can guide the material to the center area of ​​the chain plate, avoiding uneven force on one side of the chain plate due to uneven material loading, and reducing the chain plate deviation failure from the source.

[0042] Material falling onto the buffer guide plate 502 will compress the buffer guide plate 502 under the action of impact and its own gravity. This compression causes the buffer guide plate 502 to rotate on the mounting base 501 via the connecting shaft 503. The rotation of the buffer guide plate 502 drives the hinge seat 506 to compress the connecting rod 509. It should be noted that the back of the buffer guide plate 502 is connected to the hinge seat 506 via a slide rail, thus allowing the rotational movement trajectory of the buffer guide plate 502 to be controlled by the slide rail and the hinge seat 506. The connecting rod 509, which extends linearly under the action of the plug 510, is compressed. This compression of the connecting rod 509, through the plug 510, compresses the hydraulic fluid inside the hydraulic cylinder 508. Thus, the combined effect of the fluid injection into the hydraulic cylinder 508 via the first connecting pipe 507 and the simultaneous compression of the fluid inside the hydraulic cylinder 508 by the plug 510 effectively counteracts the impact of falling material, thereby providing a better buffering and shock-absorbing effect. The buffer guide assembly 5 further reduces the impact of the material after passing through the buffer guide plate 502 and the hydraulic buffer. The direct impact force on the chain plate is reduced, decreasing the probability of bending, deformation, and cracking, thus eliminating the need for frequent chain plate replacements. Simultaneously, the impact force is absorbed by hydraulic buffering, significantly reducing vibrations transmitted to transmission components such as the motor, reducer, and conveyor chain 13. This prevents bearing damage and chain 13 pitch elongation caused by high-frequency impacts, lowering the replacement and maintenance costs of the transmission system. Furthermore, the rotating design of the buffer guide plate 502 and the flexible force relief provided by hydraulic buffering allow large pieces of heavy waste and baled material to fall smoothly onto the chain plate, preventing them from getting stuck between the guide chute and the chain plate due to vertical impact, reducing the risk of material jamming. This can lead to production line shutdowns; moreover, when facing large pieces of scrap steel weighing several tons, the hydraulic buffer can effectively unload the force through synchronous pressure increase; when conveying fine granular materials, the inclined structure of the buffer guide plate 502 and the low hydraulic pressure state can prevent material accumulation and leakage, eliminating the need to design separate buffer devices for different materials. Whether it is the "point feeding" of the steel grabber, the "batch feeding" of the dump truck, or the "dispersed feeding" of the disk crane, the buffer guide plate 502 and the hydraulic system can adapt to different feeding rhythms through dynamic adjustments such as rotation angle and hydraulic pressure, ensuring stable buffering under each feeding method.

[0043] Specifically, such as Figure 4 , Figure 5 , Figure 6 and Figure 9As shown, a frame beam 2 is fixedly installed on the inner side of the steel frame 1. An impact-resistant and wear-resistant guide rail 11 is fixedly installed at the upper end of the middle position of the frame beam 2. Lubrication-free support rollers 12 are installed on both the left and right sides of the upper end face of the frame beam 2. A conveyor chain 13 is set at the upper end of the lubrication-free support rollers 12. A T-shaped conveyor chain plate 7 is rigidly connected to the upper end of the conveyor chain 13. This connection method has a simple structure, facilitates the disassembly and replacement of chain plates and other components, and reduces the maintenance cost and difficulty of the equipment. When the chain plate or conveyor chain 13 is worn or damaged, it can be quickly replaced, reducing the downtime of the equipment. The upper end faces of both ends of the T-shaped conveyor chain plate 7 are in close contact with the bottom end face of the assembly guide plate 4, thereby preventing dust, foreign objects, etc. from entering the lower part of the T-shaped conveyor chain plate 7 from the connection point and affecting the normal operation of the T-shaped conveyor chain plate 7. An H-shaped steel plate 9 is fixedly installed at the bottom end of the middle position of the T-shaped conveyor chain plate 7. A wear-resistant sliding plate 10 is fixedly installed at the end. A trigger limiting extrusion assembly 6 is provided both inside and outside the assembly guide plate 4. The trigger limiting extrusion assembly 6 includes a second hydraulic groove 602 opened on the inner end face of the steel structure frame 1. A trigger assembly guide block 603 is slidably installed inside the second hydraulic groove 602. The second hydraulic groove 602 is interconnected with the hydraulic cylinder body 508 through a second connecting pipe 601. The trigger limiting extrusion assembly 6 also includes an assembly wheel seat 604 fixedly installed on the bottom end face of the trigger assembly guide block 603. An anti-skew guide post 605 is rotatably installed inside the assembly wheel seat 604. The trigger limiting extrusion assembly 6 also includes extrusion oil grooves 607 opened at both ends of the T-shaped conveyor chain plate 7. A trigger pressure block 606 is slidably installed inside the extrusion oil groove 607. The contact end between the trigger pressure block 606 and the trigger assembly guide block 603 is arc-shaped. A pressure buffer assembly 8 is provided both inside and outside the T-shaped conveyor chain plate 7.

[0044] By adopting the above technical solution, the steel structure frame 1, frame beam 2, and impact-resistant and wear-resistant guide rail 11 all provide support and load-bearing for the conveying equipment. The drive device of the conveyor consists of one or more reducers, frequency converters, couplings, brakes, etc. The head and tail of the steel structure frame 1 are equipped with head wheel assembly groups and tail wheel assembly groups. The T-shaped conveyor chain plates 7 form a closed loop through the head and tail wheel assembly. This heavy-duty chain conveyor consists of a horizontal conveying section, a concave arc section, an inclined conveying section, and a convex arc section. During operation, the drive device drives the running parts to move. The running parts consist of a head sprocket group, a conveyor chain 13, and T-shaped conveyor chain plates 7, etc. This is a mature existing technology and will not be described in detail here. The conveyor chain 13 and the T-shaped conveyor chain plates 7 are rigidly connected, and the conveyor chain 13 can run... The T-shaped conveyor chain plate 7 is moved by the drive chain 13, which connects the overlapping T-shaped conveyor chain plates 7 into a whole that passes around the head and tail sprockets to form a closed loop. Under the drive, it circulates. The cross-section of the T-shaped conveyor chain plate 7 is chamfered on both sides to form a frustum shape. The T-shaped conveyor chain plate 7 can slide on the impact-resistant and wear-resistant guide rail 11 through the H-shaped steel plate 9 and the wear-resistant sliding plate 10. The impact-resistant and wear-resistant guide rail 11 is composed of a polymer wear-resistant guide plate and a support rail. The polymer guide plate is not only wear-resistant but also has strong impact resistance. At the same time, it can effectively buffer and dampen the impact of heavy materials on the chain plate. Moreover, because the static friction coefficient is much lower than that of wear-resistant steel, the sliding resistance loss of the chain plate is also much lower, and the driving force requirement is also much lower. This makes the operation of the equipment more economical and stable.In the heavy-duty chain conveyor process, it can buffer the impact of large and heavy materials on the T-shaped conveyor chain 7, significantly reducing the impact load on the frame and other related components. Simultaneously, due to the extremely strong wear resistance and fatigue resistance of the polymer material, it can effectively support the T-shaped conveyor chain 7 for a long time, preventing excessive wear that could lead to deformation and trigger a vicious cycle (such as friction between the bottom edge of the guide chute and the chain plate causing wear, resulting in increased edge spacing and material leakage). Furthermore, because the static friction coefficient of the polymer guide plate is much lower than that of metal wear-resistant plates, the resistance loss caused by sliding friction is relatively lower during actual operation, meaning the required driving force is much lower. The installed power of the equipment will be lower under the premise of meeting a certain safety factor. At the same time, the lubrication-free support rollers 12 can support the moving conveyor chain 13. The lubrication-free support rollers 12 are fixed on the frame crossbeams 2, which are equidistantly arranged and fixed on the main longitudinal beams of the steel structure frame 1. The lubrication-free support rollers 12 themselves form a self-lubricating structure through the fixed shaft and the wear-resistant bushing between the roller body and the wheel body. The lubricating oil only needs to be added once and does not need to be added again. Moreover, the inner and outer contact surfaces are large and rigid, and the impact resistance is stronger than that of ordinary chain support rollers. The shaft end adopts a floating seal plus inner and outer O-ring seal structure, and then uses a fixed sealing seat to form a floating plus labyrinth seal. Multiple seals provide excellent sealing effect and meet the full sealing requirements of chain support rollers! This avoids the wear of dust media on the internal structure of the wheel body and greatly increases the service life of the chain support rollers.

[0045] Figure 9 The tail end of the middle tail wheel assembly is equipped with a drip lubrication device, which includes a lubricating oil storage tank (including an oil level indicator, inlet and outlet ports), an outlet valve, a connecting hose between the oil tank and the drip distributor, a distributor fixing bracket, and a drip point flow control valve. Without affecting the normal operation of the equipment, the amount and time interval of dripping oil can be controlled by adjusting the valve, thereby artificially intervening in the wear rate between the wear-resistant sliding plate 10 and the impact-resistant wear-resistant guide rail 11, making the T-shaped conveyor chain plate 7 and the impact-resistant wear-resistant guide rail 11 more durable. During the feeding process, the impact on the T-shaped conveyor chain plate 7 causes the deformation of the T-shaped conveyor chain plate 7 to increase continuously, which in turn gradually increases the wear on the lower edge of the assembly guide plate 4, resulting in a larger gap between it and the T-shaped conveyor chain plate 7. That is, the leakage of material at the bottom edge during the material conveying process will gradually intensify, and in severe cases, even jamming may occur. If jamming occurs, it will cause the drive to be pulled hard and burn out the drive motor.

[0046] When material falls and impacts the conveyor, the oil pressure inside the hydraulic cylinder 508 increases, allowing oil to be introduced into the second hydraulic tank 602 through the second connecting pipe 601. This increase in oil pressure in the second hydraulic tank 602 pushes the trigger assembly guide block 603 towards the T-shaped conveyor chain plate 7. The movement of the trigger assembly guide block 603 then moves the assembly wheel seat 604. The anti-skew guide post 605 installed on the assembly wheel seat 604 limits the movement of the conveyor chain 13, preventing the T-shaped conveyor chain plate 7 from shifting due to impact, thus ensuring stable operation of the conveyor. The anti-skew guide post 605 effectively prevents the T-shaped conveyor chain plate 7 from shifting due to impact. When impacted, the conveyor chain 13 shifts, ensuring stable operation of the conveyor, reducing equipment failures and downtime caused by the shift of the conveyor chain 13, and improving production efficiency. At the same time, it can also squeeze the trigger pressure blocks 606 at both ends of the moving T-shaped conveyor chain plate 7, so that the trigger pressure blocks 606 can squeeze the oil in the squeezing oil tank 607. In this way, when the material impacts the pressure buffer assembly 8, the pressure buffer assembly 8 will have corresponding oil pressure to better cope with the impact of the falling heavy objects. When the material impacts the buffer guide plate 502, it is not only buffered by the hydraulic system, but also generates corresponding oil pressure inside the pressure buffer assembly 8, further enhancing the ability to cope with the impact of falling heavy objects, reducing the degree of damage to the equipment structure caused by the material impact, and extending the service life of the equipment.

[0047] Specifically, such as Figure 1 , Figure 6 , Figure 7 and Figure 8 As shown, the pressurizing buffer assembly 8 includes a hydraulic groove 803 located at the upper end of the T-shaped conveyor chain plate 7. A buffer plate 802 is slidably installed inside the hydraulic groove 803. A reinforcing crossbar 801 is fixedly installed at the upper end of the buffer plate 802. The two ends of the hydraulic groove 803 are connected to the extrusion oil groove 607 through pressurizing oil pipes 805. The pressurizing buffer assembly 8 also includes elastic arc-shaped wing plates 807 fixed on both sides of the bottom end of the T-shaped conveyor chain plate 7. An oil storage groove 806 is provided inside the elastic arc-shaped wing plate 807. The oil storage groove 806 is connected to the hydraulic groove 803 through a stamping conduit 804.

[0048] By adopting the above technical solution, the pressure block 606 pressurizes the oil in the extrusion oil tank 607, and the oil in the extrusion oil tank 607 can be introduced into the hydraulic pressure tank 803 through the pressure oil pipe 805. The amount of oil inside the hydraulic pressure tank 803 increases, thereby better coping with the impact of falling materials on the reinforcing crossbar 801. When the material is introduced onto the reinforcing crossbar 801 by the buffer guide plate 502, the reinforcing crossbar 801 extrudes the oil inside the hydraulic pressure tank 803 through the buffer pressure plate 802. The pressure further buffers the impact generated during feeding. As the oil level inside the hydraulic tank 803 increases, the oil can be introduced into the oil storage tank 806 through the stamping conduit 804. The increase in oil level in the oil storage tank 806 improves the shielding effect of the elastic arc-shaped wing plate 807, preventing a large amount of material from falling between adjacent T-shaped conveyor chain plates 7 and improving the sealing effect between adjacent T-shaped conveyor chain plates 7. The buffer guide component 5 and the trigger limit extrusion component further enhance the protection effect. The design of component 6 and the pressure buffer component 8 links the three protective functions of "material impact" and "anti-deviation, anti-leakage, and buffering" through the hydraulic system, forming an adaptive mechanism of "the greater the impact, the stronger the protection," rather than the traditional fixed protection. At the same time, the buffer guide component 5, the trigger limit extrusion component 6, and the pressure buffer component 8 are linked through the hydraulic system to form a complete adaptive closed loop. At the trigger end, the material impact first acts on the buffer guide plate 502 and the reinforcing crossbar 801, and the impact force is converted into hydraulic pressure through the mechanical structure. At the transmission end, the hydraulic oil acts as the "power medium," transmitting pressure in three directions simultaneously, pushing the anti-deviation guide column 605 to strengthen the limit of the conveyor chain 13, driving the buffer pressure plate 802 to deepen the impact absorption, and extruding the oil storage tank 806 to improve the leak prevention effect of the elastic arc-shaped wing plate 807. At the feedback end, the impact intensity is directly linked to the protection force. The greater the impact, the higher the hydraulic pressure, and the anti-deviation rigidity, buffering effect, and leak prevention range are simultaneously enhanced, completely solving the pain point of traditional protection that is "fixed in force and cannot adapt to complex working conditions."

[0049] Specifically, such as Figures 1 to 8As shown, a conveying method of a heavy-duty chain conveyor includes the following steps: S1: The heavy-duty chain conveyor can be horizontally or inclined for feeding and conveying. Feeding can be done by steel grabber, disk crane, bulldozer, dump truck, etc.; S2: Large-sized heavy waste and baled materials will first fall onto the overflow skirt 3 and the assembly guide plate 4. The material falling onto the assembly guide plate 4 will impact the buffer guide assembly 5, and the impact force will be converted into hydraulic pressure through the mechanical structure; S3: The hydraulic oil of the trigger limit extrusion assembly 6 serves as the "power medium" and synchronously transmits pressure to the pressurization buffer assembly 8, pushing the anti-skew guide column 605 to strengthen the limit of the conveyor chain 13, driving the buffer pressure plate 802 to deepen the impact absorption, and extruding the oil storage tank 806 to make the adjacent arc-shaped wing plates on the same side fit together; S4: The T-shaped conveyor chain 7 moves with the received material and delivers the material to downstream equipment such as electric furnace, rotary kiln, alloy melting furnace, crusher, or other downstream conveying equipment.

[0050] When using a heavy-duty chain conveyor, materials are fed via grabbers, disk cranes, bulldozers, dump trucks, etc. Large pieces of heavy scrap and baled materials will first fall onto the overflow skirt 3 and assembly guide plate 4. Simultaneously, the material falling onto the assembly guide plate 4 will impact the buffer guide plate 502. The force generated by this impact will squeeze the hydraulic oil inside the first hydraulic tank 505 through the buffer guide plate 502. Under this squeezing action, the oil inside the first hydraulic tank 505 will flow into the hydraulic cylinder 508 through the first connecting pipe 507. This squeezing of the oil provides a buffering and vibration reduction effect. Furthermore, the inclined arrangement of the overflow skirt 3 and buffer guide plate 502 guides the falling material along a tangential direction, avoiding vertical impact. The material falling onto the buffer guide plate 502 will be squeezed by the impact and its own weight. The compression of the buffer guide plate 502 allows it to rotate on the mounting base 501 via the connecting shaft 503. This rotation drives the hinge seat 506 to compress the connecting rod 509. It should be noted that the back of the buffer guide plate 502 is connected to the hinge seat 506 via a slide rail. This allows the rotational trajectory of the buffer guide plate 502 to be linearly extended and retracted onto the connecting rod 509 through the cooperation of the slide rail and the hinge seat 506. By compressing the connecting rod 509, the connecting rod 509 compresses the hydraulic fluid inside the hydraulic cylinder 508 via the plug body 510. Thus, the combined effect of the first connecting pipe 507 injecting fluid into the hydraulic cylinder 508 and the plug body 510 simultaneously compressing the fluid inside the hydraulic cylinder 508 effectively offsets the impact of falling materials, thereby achieving a better buffering and impact-resistant effect.

[0051] The steel frame 1, frame beam 2, and impact-resistant and wear-resistant guide rail 11 all provide support and load-bearing for the conveying equipment. The drive unit of the conveyor consists of one or more reducers, frequency converters, couplings, brakes, etc. During operation, the drive unit drives the moving parts to move. The moving parts consist of a head sprocket set, a conveyor chain 13, and T-shaped conveyor chain plates 7, etc. This is mature existing technology and will not be described in detail here. The conveyor chain 13 and the T-shaped conveyor chain plates 7 are rigidly connected. The movement of the conveyor chain 13 can drive the movement of the T-shaped conveyor chain plates 7. The T-shaped conveyor chain plates 7 can be mounted on the impact-resistant and wear-resistant guide rail 11 via H-shaped steel plates 9 and wear-resistant sliding plates 10. The conveyor chain 13 slides along the conveyor, and the lubrication-free support rollers 12 provide support for the moving chain. When material falls and impacts the chain, the oil pressure inside the hydraulic cylinder 508 increases, allowing oil to be introduced into the second hydraulic groove 602 through the second connecting pipe 601. This increase in oil pressure in the second hydraulic groove 602 pushes the trigger assembly guide block 603 towards the T-shaped conveyor chain plate 7. The movement of the trigger assembly guide block 603 drives the assembly wheel seat 604 to move. The anti-skew guide post 605 installed on the assembly wheel seat 604 limits the movement of the conveyor chain 13, thus preventing the T-shaped conveyor chain plate 7 from being moved. When impacted, the conveyor chain 13 will shift, affecting the stable operation of the conveyor. Simultaneously, it will compress the trigger pressure blocks 606 at both ends of the moving T-shaped conveyor chain 7, allowing the trigger pressure blocks 606 to compress the oil in the compression oil tank 607. This ensures that when material impacts the pressure buffer assembly 8, the pressure inside the assembly is adequately pressurized to better handle the impact of falling heavy objects. As the trigger pressure blocks 606 compress the oil in the compression oil tank 607, the oil in the compression oil tank 607 can be introduced into the oil pressure tank 803 through the pressurized oil pipe 805, increasing the amount of oil inside the oil pressure tank 803, thus further enhancing its performance. To better cope with the impact of falling materials on the reinforcing crossbar 801, when the material is introduced onto the reinforcing crossbar 801 by the buffer guide plate 502, the reinforcing crossbar 801 squeezes the oil inside the hydraulic tank 803 through the buffer pressure plate 802, thereby further buffering the impact generated during feeding. When the oil inside the hydraulic tank 803 increases further, the oil inside the hydraulic tank 803 can be introduced into the oil storage tank 806 through the stamping conduit 804. The increase in oil inside the oil storage tank 806 can improve the shielding effect of the elastic arc-shaped wing plate 807, prevent a large amount of material from falling between the adjacent T-shaped conveyor chain plates 7, and improve the sealing effect between the adjacent T-shaped conveyor chain plates 7.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A heavy-duty chain conveyor, comprising a steel frame (1), characterized in that: The top of the steel structure frame (1) is fixedly installed with an overflow skirt (3), and the bottom of the inner side of the overflow skirt (3) is fixedly installed with an assembly guide plate (4). The inner and outer sides of the assembly guide plate (4) are jointly provided with a buffer guide assembly (5) for buffering and guiding the feeding material. The buffer guide assembly (5) includes a mounting base (501) fixedly installed on the inner end face of the assembly guide plate (4). A connecting shaft (503) is inserted inside the mounting base (501). A buffer guide plate (502) is rotatably installed on the mounting base (501) through the connecting shaft (503). A first hydraulic groove (505) is opened inside the upper end of the buffer guide plate (502). A buffer extrusion plate (504) is slidably installed inside the first hydraulic groove (505). A first connecting pipe (507) is passed through and communicates inside the first hydraulic groove (505). The end of the first connecting pipe (507) is connected to a hydraulic cylinder (508) fixedly installed on the assembly guide plate (4).

2. The heavy-duty chain conveyor according to claim 1, characterized in that: A plug (510) is slidably mounted inside the hydraulic cylinder body (508). A connecting rod (509) is fixedly mounted on the upper end face of the plug (510). A hinge seat (506) is slidably mounted on the back of the buffer guide plate (502) at the top of the connecting rod (509).

3. A heavy-duty chain conveyor according to claim 1, characterized in that: The steel frame (1) has a frame beam (2) fixedly installed on its inner side. The upper end of the frame beam (2) is fixedly installed with an impact-resistant and wear-resistant guide rail (11). Lubrication-free support rollers (12) are installed on both the left and right sides of the upper end face of the frame beam (2).

4. A heavy-duty chain conveyor according to claim 3, characterized in that: The upper end of the lubrication-free support roller (12) is provided with a conveyor chain (13), the upper end of the conveyor chain (13) is rigidly connected with a T-shaped conveyor chain plate (7), the bottom end of the T-shaped conveyor chain plate (7) is fixedly installed with an H-shaped steel plate (9), and the bottom end of the H-shaped steel plate (9) is fixedly installed with a wear-resistant sliding plate (10).

5. A heavy-duty chain conveyor according to claim 4, characterized in that: The assembly guide plate (4) is provided with a trigger limiting extrusion assembly (6) on both the inside and outside. The trigger limiting extrusion assembly (6) includes a second hydraulic groove (602) opened on the inner end face of the steel structure frame (1). A trigger assembly guide block (603) is slidably installed inside the second hydraulic groove (602). The second hydraulic groove (602) is connected to the hydraulic cylinder body (508) through a second connecting pipe (601).

6. A heavy-duty chain conveyor according to claim 5, characterized in that: The trigger limiting extrusion assembly (6) also includes an assembly wheel seat (604) fixedly installed on the bottom end face of the trigger assembly guide block (603), and an anti-skewing guide post (605) is rotatably installed inside the assembly wheel seat (604).

7. A heavy-duty chain conveyor according to claim 6, characterized in that: The trigger limiting extrusion assembly (6) also includes extrusion oil grooves (607) opened at both ends of the T-shaped conveyor chain plate (7). A trigger pressure block (606) is slidably installed inside the extrusion oil groove (607). The contact end between the trigger pressure block (606) and the trigger assembly guide block (603) is arc-shaped.

8. A heavy-duty chain conveyor according to claim 7, characterized in that: The T-shaped conveyor chain plate (7) is provided with a pressure buffer assembly (8) both inside and outside. The pressure buffer assembly (8) includes a hydraulic groove (803) opened at the upper end of the inside of the T-shaped conveyor chain plate (7). A buffer plate (802) is slidably installed inside the hydraulic groove (803). A reinforcing crossbar (801) is fixedly installed at the upper end of the buffer plate (802). The two ends of the hydraulic groove (803) are connected to the extrusion oil groove (607) through a pressure oil pipe (805).

9. A heavy-duty chain conveyor according to claim 8, characterized in that: The pressurized buffer assembly (8) also includes elastic arc-shaped wing plates (807) fixed on both sides of the bottom end of the T-shaped conveyor chain plate (7). The elastic arc-shaped wing plate (807) has an oil storage tank (806) inside. The oil storage tank (806) is connected to the oil pressure tank (803) through a stamping conduit (804).

10. A conveying method for a heavy-duty chain conveyor as described in any one of claims 1 to 9, characterized in that, Includes the following steps: S1: Heavy-duty chain conveyor can feed and transport materials horizontally and at an incline. Feeding methods include steel grabbers, disk cranes, bulldozers, dump trucks, etc. S2: Large-sized heavy waste and packaged material will first fall onto the overflow skirt (3) and assembly guide plate (4). The material falling onto the assembly guide plate (4) will impact the buffer guide assembly (5), and the impact force will be converted into hydraulic pressure through the mechanical structure. S3: The trigger limit extrusion assembly (6) uses hydraulic oil as the "power medium" to synchronously transmit pressure to the pressurization buffer assembly (8), pushes the anti-skew guide column (605) to strengthen the limit of the conveyor chain (13), drives the buffer pressure plate (802) to deepen the impact absorption, and squeezes the oil storage tank (806) to make the adjacent arc-shaped wing plates on the same side fit together. S4: The T-type conveyor chain plate (7) carries the received material and delivers it to the electric furnace, rotary kiln, alloy melting furnace, crusher or other downstream conveying equipment.

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