Mining low-abrasion longitudinal-tearing-preventing material receiving buffering device

Abstract

The invention discloses a mining low-abrasion longitudinal-tearing-preventing material receiving buffering device, and belongs to the technical field of buffering beds. The device comprises a supporting base, a bottom supporting assembly, a side supporting assembly and a variable supporting assembly. Buffering strips and carrier rollers in the bottom supporting assembly and the side supporting assembly cooperate to buffer material impact, support the conveying belt and reduce friction. The variable supporting assembly can adjust the angle of an adjusting buffer strip through a driving motor so as to adapt to the conveying volume, the belt width and the groove angle of different conveying belts. The conveying belt has the advantages of being capable of effectively reducing abrasion of the conveying belt, reducing longitudinal tearing risks, accurately adapting to diversified working conditions, reducing maintenance cost, guaranteeing efficient and stable conveying of mine materials, prolonging the service life of the conveying belt and improving economic benefits of mine production.

Description

Technical Field

[0001] The invention belongs to the technical field of buffer beds, and in particular relates to a low-wear and longitudinal tear-proof material receiving buffer device for mining. Background Art

[0002] In the mining industry, efficient and safe transportation of materials is a key link to ensure production continuity and reduce costs. As the core equipment for mining material transportation, the stability and durability of the conveyor belt directly affect the entire production process. The material receiving link is the initial stage of material entering the conveyor belt, and its impact on the conveyor belt is crucial. A suitable material receiving buffer device can significantly improve the performance and service life of the conveyor belt.

[0003] At present, there are many types of buffer devices used in the material receiving link of mines. Some traditional devices cushion the impact of materials by laying simple rubber pads in the material receiving area of ​​the conveyor belt, and use the elasticity of rubber to reduce the direct impact of materials on the conveyor belt. Some devices use a fixed structure of roller groups to try to provide stable support for the conveyor belt and reduce the deformation of the conveyor belt when the material impacts. In dealing with different conveyor belt parameters, in most cases, the appropriate buffer device is selected based on experience, and there is a lack of flexible adjustment methods. For the problem of longitudinal tearing of the conveyor belt, some devices prevent it by adding a protective coating on the surface of the conveyor belt or installing a simple foreign body detection device, but the effect is limited.

[0004] However, these existing methods have many shortcomings. First, the buffering capacity of simple rubber pads is limited. When faced with a large amount of materials falling at high speed, they cannot fully absorb the impact energy, causing the conveyor belt to still bear a large impact force, which is prone to wear, scratches and other problems. The fixed-structure roller group is difficult to adaptively adjust according to the impact of the material, cannot effectively disperse the impact force, and has poor adaptability to conveyor belts with different bandwidths and groove angles. Secondly, when dealing with different conveyor belt transport volumes, bandwidths and groove angles, the buffer device without a flexible adjustment mechanism is difficult to meet the diverse working conditions. When the transport volume changes, the buffering force cannot be adjusted in time; for conveyor belts with different bandwidths and groove angles, it cannot be accurately matched, which can easily cause uneven material distribution and increase the risk of conveyor belt deviation and wear. Finally, the existing anti-longitudinal tearing measures are not effective. Simple protective coatings cannot resist the penetration of sharp foreign objects, and foreign object detection devices also have detection blind spots. It is difficult to fundamentally prevent the occurrence of conveyor belt longitudinal tearing accidents. Once longitudinal tearing occurs, it will seriously affect production and cause huge economic losses. Summary of the invention

[0005] In view of the above-mentioned problems, the purpose of the present invention is to provide a low-wear and anti-longitudinal tearing material receiving buffer device for mining, so as to ensure that the material is evenly stressed during the transportation process, reduce the impact damage of the material to the conveyor belt, extend the service life of the conveyor belt, and ensure the efficient and stable material transportation work in the mine.

[0006] The technical solution of the present invention is: a low-wear and anti-longitudinal tearing material receiving buffer device for mining, comprising:

[0007] A support base, comprising a plurality of spaced-apart cross beams and two longitudinal beams fixedly connected to both ends of the plurality of cross beams;

[0008] A bottom support assembly, comprising a plurality of groups of bottom bracket grooves and a plurality of bottom rollers, wherein a group of the bottom bracket grooves is provided between the middle portions of every two adjacent cross beams, a plurality of bottom buffer strips are evenly provided on each group of the bottom bracket grooves, and a bottom roller is provided between two adjacent groups of the bottom bracket grooves;

[0009] A side support assembly, comprising a plurality of side support frame grooves and a plurality of side rollers, wherein a plurality of side support frame grooves are provided at both ends of each two adjacent cross beams, a plurality of side buffer strips are provided on each side support frame groove, and a side roller is provided between two adjacent side support frame grooves;

[0010] The variable support assembly includes multiple groups of adjustable support frame grooves, each group of adjustable support frame grooves is provided between the two groups of side support frame grooves, and each group of adjustable support frame grooves is provided with multiple adjustable buffer strips. The adjustable support frame grooves are used to change the angle of the adjustable buffer strip to be horizontal with the bottom buffer strip, or parallel with the side buffer strip.

[0011] Further, the bottom bracket slot comprises:

[0012] A bottom steel trough, with two ends fixedly arranged between the middle parts of two adjacent cross beams, and an upper surface of the bottom steel trough being opened;

[0013] Bottom buffer spring, a plurality of bottom buffer springs are evenly arranged at the bottom of the bottom steel groove, the bottom buffer strip is embedded in the bottom steel groove, and the bottom of the bottom buffer strip is connected to the top of the bottom buffer spring.

[0014] Furthermore, the bottom roller comprises:

[0015] Two bottom roller seats are symmetrically fixedly arranged between the side walls of the two cross beams, and the opposite surfaces of the two bottom roller seats are provided with a first vertical groove;

[0016] A first moving block, wherein each of the first vertical slots is slidably embedded with the first moving block, a lower surface of the first moving block is connected to the bottom of the first vertical slot via a first spring, and first bearings are fixedly disposed on opposite surfaces of two of the first moving blocks;

[0017] A first roller shaft, both ends of which are coaxially fixedly connected to the inner rings of the two first bearings respectively;

[0018] The first roller body is fixedly sleeved on the side of the first roller shaft.

[0019] Furthermore, the side support frame slot includes:

[0020] A bracket, wherein the two ends of each of the cross beams are respectively fixed with the bracket;

[0021] A plurality of side steel channels, wherein a plurality of the side steel channels are evenly arranged between the brackets of two adjacent cross beams, and the opposite surfaces of the side steel channels are open;

[0022] Side buffer springs, a plurality of side buffer springs are evenly arranged at the bottom of the side steel groove, the side buffer strip is embedded in the side steel groove, and the bottom of the side buffer strip is connected to the top of the side buffer spring.

[0023] Furthermore, the support comprises:

[0024] Two telescopic support columns are fixedly arranged on the crossbeam at intervals, and a rotation pair is provided at the upper end of each telescopic support column;

[0025] The two ends of the diagonal rod are respectively rotatably connected to the two rotating pairs, and one end of the side steel groove is fixedly arranged on the diagonal rod.

[0026] Furthermore, the side rollers include:

[0027] Two side roller seats are symmetrically fixedly arranged between the hypotenuses of the two right-angle triangle brackets, and the opposite surfaces of the two side roller seats are provided with second vertical grooves;

[0028] A second moving block, wherein each of the second vertical grooves is slidably embedded with the second moving block, a lower surface of the second moving block is connected to an inner side of the second vertical groove via a second spring, and second bearings are fixedly disposed on opposite surfaces of two of the second moving blocks;

[0029] A second roller shaft, both ends of which are coaxially fixedly connected to the inner rings of the two second bearings respectively;

[0030] The second roller body is fixedly sleeved on the side of the second roller shaft.

[0031] Furthermore, the adjusting support frame slot comprises:

[0032] Two telescopic support rods are symmetrically fixed on the crossbeam, and a rotating shaft is vertically provided at the upper end of each telescopic support rod;

[0033] A rotating seat, wherein the fixed sleeve is arranged outside the rotating shaft;

[0034] A sector seat is fixedly arranged at the lower end of the rotating seat, and a worm gear is fixedly arranged on the distal arc edge of the sector seat;

[0035] A driving motor is fixedly mounted on the crossbeam below the supporting rod, a worm is coaxially fixedly mounted on the output shaft of the driving motor, and the worm is meshed with the worm gear to drive the rotating seat to rotate;

[0036] The adjusting steel groove is fixedly arranged on the upper end of the rotating seat, the upper surface of the adjusting steel groove is opened, and the adjusting buffer strip is elastically embedded in the adjusting steel groove through a buffer spring.

[0037] Working principle of the present invention:

[0038] When the material falls from a height and impacts the device, the bottom support assembly comes into play first. Under the impact force of the material, the bottom buffer strip presses down the bottom buffer spring, and the spring is compressed and deformed, converting the impact energy of the material into its own elastic potential energy, thereby weakening the impact force of the material on the bottom of the conveyor belt and achieving the initial buffering. At the same time, the bottom roller provides stable support for the conveyor belt on the one hand, and its flexible rotation can reduce the friction resistance generated by the conveyor belt during operation and reduce the wear of the conveyor belt on the other hand.

[0039] The side support components work synchronously. The side buffer strips will block the materials that tend to move sideways to prevent them from falling from the sides of the conveyor belt. The side buffer springs are responsible for buffering the impact of the materials on the sides to protect the sides of the conveyor belt. The side rollers can maintain the stable operation of the sides of the conveyor belt, further reducing the impact and wear on the sides.

[0040] The variable support assembly will be adjusted according to the actual conditions of the conveyor belt's transport volume, bandwidth, groove angle, etc. When adjustment is needed, the drive motor is started, and the output shaft of the drive motor drives the worm to rotate. The worm and worm gear teeth interact to rotate the rotating seat, thereby changing the angle of the adjustment buffer bar. The adjustment buffer bar can be adjusted to be horizontal with the bottom buffer bar or parallel with the side buffer bar, so that the entire device can better adapt to the impact direction of the material, ensure that the material is evenly stressed during the conveying process, reduce the impact damage to the conveyor belt in all directions, effectively extend the service life of the conveyor belt, and ensure that the material conveying work is stable and efficient.

[0041] Compared with the prior art, the present invention has the following beneficial effects:

[0042] The bottom buffer strip in the bottom support assembly of the present invention cooperates with the bottom buffer spring. When the material impacts, the spring can effectively absorb the impact energy and reduce the impact force of the material on the bottom of the conveyor belt. At the same time, the bottom roller not only provides support for the conveyor belt, but its special structure can also reduce the friction of the conveyor belt during operation. The side buffer strip and side buffer spring of the side support assembly can buffer the impact of the material on the side of the conveyor belt and prevent the side wear caused by the lateral movement of the material. The overall synergistic effect greatly reduces the wear degree of the conveyor belt, extends the service life of the conveyor belt, and reduces the high cost and downtime caused by frequent replacement of the conveyor belt.

[0043] The adjustable support frame slot of the variable support assembly of the present invention can flexibly change the angle of the adjustable buffer strip through the cooperation of the driving motor, the worm and the worm gear. Whether it is the transportation of materials with different transport volumes or the conveyor belts with different bandwidths and groove angles, the adjustable buffer strip can be adapted to the bottom or side buffer strips by adjusting the angle to ensure that the material is evenly stressed during the transportation process. This greatly improves the adaptability of the device to complex working conditions, ensures the stability and efficiency of material transportation, and avoids problems such as material accumulation and conveyor belt deviation caused by mismatched working conditions.

[0044] The present invention also reduces the possibility of longitudinal tearing of the conveyor belt from multiple angles. The side support assembly restrains the material, preventing the material from shaking significantly on the conveyor belt, and reducing the risk of foreign objects scratching the conveyor belt. The variable support assembly adjusts the buffer angle according to the working conditions to make the conveyor belt more evenly stressed, further reducing the longitudinal tearing caused by excessive local stress, ensuring the integrity of the conveyor belt, and reducing material leakage and production stoppage losses caused by longitudinal tearing of the conveyor belt.

[0045] The present invention can effectively reduce the wear and tear of the conveyor belt, and greatly reduce the maintenance and replacement frequency of the conveyor belt. At the same time, the structure of each component is reasonably designed, which is convenient for disassembly and maintenance. When some components are damaged, they can be quickly replaced, which reduces the manpower and material costs required for maintenance and improves the overall economic benefits of mining production. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0047] Figure 2 It is a cross-sectional view of the bottom bracket slot, the side support frame slot, and the adjustment support frame slot of the present invention;

[0048] Figure 3 It is a schematic diagram of the bottom roller structure of the present invention;

[0049] Figure 4 is a schematic diagram of the position structure of the first moving block of the present invention;

[0050] Figure 5It is a schematic diagram of the side roller structure of the present invention;

[0051] Figure 6 is a schematic diagram of the structure of the second moving block of the present invention;

[0052] Figure 7 It is a schematic diagram of the bottom steel trough structure of the present invention.

[0053] Among them, 1. support base; 11. crossbeam; 12. longitudinal beam; 2. bottom support assembly; 21. bottom bracket groove; 211. bottom steel groove; 212. bottom buffer spring; 23. bottom buffer strip; 22. bottom roller; 221. bottom roller seat; 222. first vertical groove; 223. first moving block; 224. first spring; 225. first bearing; 226. first roller shaft; 227. first roller body; 3. side support assembly; 31. side support frame groove; 311. bracket; 3111. telescopic support column; 3112. rotating pair; 311 3. Oblique rod; 312. Side steel groove; 33. Side buffer strip; 32. Side roller; 321. Side roller seat; 322. Second vertical groove; 323. Second moving block; 324. Second spring; 325. Second bearing; 326. Second roller shaft; 327. Second roller body; 4. Variable support assembly; 41. Adjust support frame groove; 411. Telescopic support rod; 412. Rotating shaft; 413. Rotating seat; 414. Fan-shaped seat; 415. Worm gear; 416. Drive motor; 417. Worm; 418. Adjust steel groove; 42. Adjust buffer strip. DETAILED DESCRIPTION

[0054] The following is combined with Figure 1 To the attached Figure 7 , the specific embodiments of the present invention are described in detail. In the description of the present invention, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0055] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features; in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0056] It should be noted that the circuit connections involved in the present invention all adopt conventional circuit connection methods and do not involve any innovation.

[0057] Example: Figure 1-2 As shown, a low-wear and anti-longitudinal tearing material receiving buffer device for mining includes a support base 1, a bottom support assembly 2, a side support assembly 3 and a variable support assembly 4. Among them:

[0058] The support base 1 includes a plurality of spaced-apart cross beams 11 and two longitudinal beams 12 fixedly connected to both ends of the plurality of cross beams 11;

[0059] The bottom support assembly 2 includes multiple groups of bottom bracket grooves 21 and multiple bottom rollers 22. A group of bottom bracket grooves 21 is provided between the middle parts of each two adjacent cross beams 11. Multiple bottom buffer strips 23 are evenly provided on each group of bottom bracket grooves 21. A bottom roller 22 is provided between two adjacent groups of bottom bracket grooves 21. Figure 7 As shown, the bottom bracket slot 21 includes a bottom steel slot 211 and a bottom buffer spring 212; the two ends of the bottom steel slot 211 are fixedly arranged between the middle parts of two adjacent beams 11, and the upper surface of the bottom steel slot 211 is opened; a plurality of bottom buffer springs 212 are evenly arranged at the bottom of the bottom steel slot 211, and the bottom buffer strip 23 is embedded in the bottom steel slot 211, and the bottom of the bottom buffer strip 23 is connected to the top of the bottom buffer spring 212; Figure 3-4 As shown, the bottom roller 22 includes a bottom roller seat 221, a first moving block 223, a first roller shaft 226 and a first roller body 227; the two bottom roller seats 221 are symmetrically fixedly arranged between the side walls of the two cross beams 11, and the opposite surfaces of the two bottom roller seats 221 are provided with a first vertical groove 222; a first moving block 223 is slidably embedded in each first vertical groove 222, and the lower surface of the first moving block 223 is connected to the bottom of the first vertical groove 222 through a first spring 224, and the opposite surfaces of the two first moving blocks 223 are fixedly provided with a first bearing 225; the two ends of the first roller shaft 226 are respectively coaxially fixedly connected to the inner rings of the two first bearings 225; the first roller body 227 is fixedly sleeved on the side of the first roller shaft 226;

[0060] The side support assembly 3 includes multiple groups of side support frame grooves 31 and multiple side rollers 32. Multiple groups of side support frame grooves 31 are provided at both ends of every two adjacent cross beams 11. Multiple side buffer strips 33 are provided on each group of side support frame grooves 31. A side roller 32 is provided between two adjacent groups of side support frame grooves 31. The side support frame groove 31 includes a bracket 311, a side steel groove 312 and a side buffer spring. Brackets 311 are fixed at both ends of each cross beam 11. The bracket 311 includes two telescopic support columns 3111 and an inclined rod 3113. The two telescopic support columns 3111 are fixed at intervals. The cross beam 11 is fixedly arranged, and a rotating pair 3112 is provided at the upper end of each telescopic support column 3111; the two ends of the inclined rod 3113 are respectively rotatably connected with the two rotating pairs 3112, and one end of the side steel channel 312 is fixedly arranged on the inclined rod 3113; a plurality of side steel channels 312 are evenly arranged between the brackets 311 of two adjacent cross beams 11, and the opposite surfaces of the side channel steels 312 are opened; a plurality of side buffer springs are evenly arranged at the bottom of the side steel channel 312, and the side buffer strip 33 is embedded in the side steel channel 312, and the bottom of the side buffer strip 33 is connected to the top of the side buffer spring; Figure 5-6 As shown, the side roller 32 includes a side roller seat 321, a second moving block 323, a second roller shaft 326 and a second roller body 327; the two side roller seats 321 are symmetrically fixedly arranged between the hypotenuses of the two right-angle triangle brackets 311, and the opposite surfaces of the two side roller seats 321 are provided with second vertical grooves 322; a second moving block 323 is slidably embedded in each second vertical groove 322, and the lower surface of the second moving block 323 is connected to the inner side of the second vertical groove 322 by a second spring 324, and the opposite surfaces of the two second moving blocks 323 are fixedly provided with second bearings 325; the two ends of the second roller shaft 326 are respectively coaxially fixedly connected to the inner rings of the two second bearings 325; the second roller body 327 is fixedly sleeved on the side of the second roller shaft 326;

[0061] The variable support assembly 4 includes multiple groups of adjustable support frame slots 41, each group of bottom support frame slots 21 and the two groups of side support frame slots 31 are provided with adjustable support frame slots 41, and each group of adjustable support frame slots 41 is provided with multiple adjustable buffer strips 42, and the adjustable support frame slots 41 are used to change the angle of the adjustable buffer strips 42 to be horizontal with the bottom buffer strips 23, or parallel with the side buffer strips 33; the adjustable support frame slots 41 include a retractable support rod 411, a rotating seat 413, a fan-shaped seat 414, a driving motor 416 and an adjustable steel slot 418; two telescopic support rods 411 are symmetrically fixed on the crossbeam 11, and each telescopic support rod 411 is vertically arranged at the upper end There is a rotating shaft 412; a rotating seat 413 is fixedly sleeved on the outside of the rotating shaft 412; a fan-shaped seat 414 is fixedly set at the lower end of the rotating seat 413, and a worm gear 415 is fixedly set on the distal arc edge of the fan-shaped seat 414; a driving motor 416 is fixedly set on the crossbeam 11 below the telescopic support rod 411, and a worm 417 is coaxially fixed on the output shaft of the driving motor 416, and the worm 417 is meshed with the worm gear 415 to drive the rotating seat 413 to rotate; an adjusting steel groove 418 is fixedly set at the upper end of the rotating seat 413, and an opening is set on the upper surface of the adjusting steel groove 418, and an adjusting buffer strip 42 is elastically embedded in the adjusting steel groove 418 through a buffer spring.

[0062] The working principle of the above embodiment is:

[0063] In the bottom support assembly 2, multiple groups of bottom bracket grooves 21 are distributed between the middle parts of adjacent cross beams 11. In each group of bottom bracket grooves 21, the bottom buffer strip 23 is connected to the bottom steel groove 211 by means of the bottom buffer spring 212. When the material falls and impacts the bottom buffer strip 23, the bottom buffer spring 212 is compressed and deformed, and the impact kinetic energy of the material is converted into its own elastic potential energy, which effectively weakens the impact force of the material on the bottom of the conveyor belt and plays a role of initial buffering. The bottom roller 22 between two adjacent groups of bottom bracket grooves 21 has a bottom roller seat 221 fixed to the side wall of the cross beam 11, and the first moving block 223 slides in the first vertical groove 222 and is connected to the bottom of the vertical groove through the first spring 224, which can further buffer the impact of the material. At the same time, the first roller shaft 226 and the first roller body 227 can rotate flexibly to provide stable support for the conveyor belt, reduce the friction resistance of the conveyor belt during operation, and reduce wear.

[0064] The multiple groups of side support frame grooves 31 of the side support assembly 3 are located at both ends of adjacent cross beams 11, and the side buffer strips 33 are installed in the side steel grooves 312 through side buffer springs. When the material on the conveyor belt tends to move sideways, the side buffer strips 33 can block the material and prevent it from falling from the side of the conveyor belt. The side buffer springs buffer the impact force of the material on the side to protect the side of the conveyor belt from damage. The side roller seat 321 of the side roller 32 is fixed between the hypotenuse of the right-angle triangle bracket 311, and the second moving block 323 slides in the second vertical groove 322 and is connected to the second spring 324. The second roller shaft 326 and the second roller body 327 are flexible in rotation, which not only supports the side of the conveyor belt, but also buffers the impact force of the side to maintain the stable operation of the side of the conveyor belt. The telescopic support column 3111 and the inclined rod 3113 of the bracket 311 can adjust the position and angle of the side steel groove 312 to meet the requirements of different working conditions.

[0065] The adjustable support frame slot 41 of the variable support assembly is located between the bottom support slot 21 and the two sets of side support frame slots 31. When facing different conveyor belt transport capacity, bandwidth and slot angle requirements, the drive motor 416 can be started, and the worm 417 on the output shaft of the drive motor 416 and the worm gear 415 on the arc edge of the far end of the fan-shaped seat 414 are meshed with each other, driving the rotating seat 413 to rotate around the rotating shaft 412, thereby rotating the adjusting steel slot 418 fixed on the upper end of the rotating seat 413, so as to realize the change of the angle of the adjusting buffer strip 42 and adjust the buffer The strip 42 is elastically embedded in the adjusting steel groove 418 through a buffer spring, and can be adjusted to a state horizontal with the bottom buffer strip 23 or parallel with the side buffer strip 33. In this way, no matter how the material impacts the conveyor belt, the adjusting buffer strip 42 can better fit the impact direction, and cooperate with the bottom support assembly 2 and the side support assembly 3 to ensure that the material is evenly stressed during the conveying process, minimize the impact damage to the conveyor belt, extend the service life of the conveyor belt, and ensure the efficient and stable transportation of mine materials.

[0066] The specific models of the above electronic components are not specially specified, and ordinary products available on the market can be selected as long as they can meet the use requirements of the present invention.

[0067] The specific embodiments described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific embodiment of the present invention and does not limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention are included in the protection scope of the present invention.

Claims

1. A low-wear and anti-longitudinal tearing material receiving buffer device for mining, characterized in that: include: A support base (1) comprises a plurality of spaced-apart cross beams (11) and two longitudinal beams (12) fixedly connected to both ends of the plurality of cross beams (11); A bottom support assembly (2) comprises a plurality of groups of bottom support grooves (21) and a plurality of bottom rollers (22), wherein a group of the bottom support grooves (21) is provided between the middle parts of each two adjacent cross beams (11), a plurality of bottom buffer strips (23) are evenly provided on each group of the bottom support grooves (21), and a bottom roller (22) is provided between two adjacent groups of the bottom support grooves (21); A side support assembly (3) comprising a plurality of side support frame grooves (31) and a plurality of side rollers (32), wherein the two ends of each two adjacent cross beams (11) are provided with a plurality of side support frame grooves (31), each set of side support frame grooves (31) is provided with a plurality of side buffer strips (33), and a side roller (32) is provided between two adjacent sets of side support frame grooves (31); The variable support assembly (4) comprises a plurality of groups of adjustable support frame grooves (41), wherein the adjustable support frame grooves (41) are arranged between each group of bottom support frame grooves (21) and two groups of side support frame grooves (31), and each group of the adjustable support frame grooves (41) is provided with a plurality of adjustable buffer strips (42), and the adjustable support frame grooves (41) are used to change the angle of the adjustable buffer strips (42) to be horizontal with the bottom buffer strip (23) or parallel with the side buffer strips (33).

2. A low-wear and anti-longitudinal tearing material receiving buffer device for mining as claimed in claim 1, characterized in that: The bottom bracket slot (21) comprises: A bottom steel trough (211), with two ends fixedly arranged between the middle parts of two adjacent cross beams (11), and an upper surface of the bottom steel trough (211) being opened; A bottom buffer spring (212), wherein a plurality of the bottom buffer springs (212) are evenly arranged at the bottom of the bottom steel groove (211), the bottom buffer strip (23) is embedded in the bottom steel groove (211), and the bottom of the bottom buffer strip (23) is connected to the top of the bottom buffer spring (212).

3. A low-wear and anti-longitudinal tearing material receiving buffer device for mining as claimed in claim 1, characterized in that: The bottom roller (22) comprises: Two bottom roller seats (221) are symmetrically fixedly arranged between the side walls of the two cross beams (11), and the opposite surfaces of the two bottom roller seats (221) are provided with first vertical grooves (222); A first moving block (223), wherein each of the first vertical slots (222) is slidably embedded in the first moving block (223), the lower surface of the first moving block (223) is connected to the bottom of the first vertical slot (222) via a first spring (224), and first bearings (225) are fixedly disposed on opposite surfaces of the two first moving blocks (223); A first roller shaft (226), both ends of which are coaxially fixedly connected to the inner rings of the two first bearings (225); The first roller body (227) is fixedly sleeved on the side of the first roller shaft (226).

4. A low-wear and anti-longitudinal tearing material receiving buffer device for mining as claimed in claim 1, characterized in that: The side support frame slot (31) comprises: A bracket (311), with the bracket (311) being fixedly provided at both ends of each of the crossbeams (11); A plurality of side steel grooves (312), wherein a plurality of the side steel grooves (312) are evenly arranged between the brackets (311) of two adjacent cross beams (11), and the opposite surfaces of the side steel grooves (312) are open; Side buffer springs, a plurality of the side buffer springs are evenly arranged at the bottom of the side steel groove (312), the side buffer strip (33) is embedded in the side steel groove (312), and the bottom of the side buffer strip (33) is connected to the top of the side buffer spring.

5. A low-wear and anti-longitudinal tearing material receiving buffer device for mining as claimed in claim 4, characterized in that: The support (311) comprises: Two telescopic support columns (3111) are fixedly arranged on the crossbeam (11) at intervals, and a rotation pair (3112) is provided at the upper end of each telescopic support column (3111); The two ends of the inclined rod (3113) are respectively rotatably connected to the two rotating pairs (3112), and one end of the side steel groove (312) is fixedly arranged on the inclined rod (3113).

6. A low-wear and anti-longitudinal tearing material receiving buffer device for mining as claimed in claim 1, characterized in that: The side roller (32) comprises: Two side roller seats (321) are symmetrically fixedly arranged between the hypotenuses of the two right-angle triangle brackets (311), and second vertical grooves (322) are arranged on the opposite surfaces of the two side roller seats (321); A second moving block (323), wherein each of the second vertical grooves (322) is slidably embedded in the second moving block (323), the lower surface of the second moving block (323) is connected to the inner side of the second vertical groove (322) via a second spring (324), and second bearings (325) are fixedly disposed on the opposite surfaces of the two second moving blocks (323); A second roller shaft (326), both ends of which are coaxially fixedly connected to the inner rings of the two second bearings (325); The second roller body (327) is fixedly sleeved on the side of the second roller shaft (326).

7. A low-wear and anti-longitudinal tearing material receiving buffer device for mining as claimed in claim 1, characterized in that: The adjusting support frame slot (41) comprises: Two telescopic support rods (411) are symmetrically fixedly arranged on the crossbeam (11), and a rotating shaft (412) is vertically arranged at the upper end of each telescopic support rod (411); A rotating seat (413) fixedly sleeved on the outside of the rotating shaft (412); A sector seat (414) is fixedly arranged at the lower end of the rotating seat (413), and a worm gear (415) is fixedly arranged on the distal arc edge of the sector seat (414); A driving motor (416) is fixedly mounted on the crossbeam (11) below the telescopic support rod (411); a worm (417) is coaxially fixedly mounted on the output shaft of the driving motor (416); the worm (417) is meshed with the worm gear (415) to drive the rotating seat (413) to rotate; The adjusting steel groove (418) is fixedly arranged on the upper end of the rotating seat (413); the upper surface of the adjusting steel groove (418) is opened; and the adjusting buffer strip (42) is elastically embedded in the adjusting steel groove (418) via a buffer spring.

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