Belt conveying integrated equipment for coal sampling and sample preparation

Abstract

The belt conveying integrated equipment for coal sampling and sample preparation comprises a support and a supporting plate, a machining mechanism is arranged on the support, a first conveying belt is arranged on the supporting plate, and the output end of the machining mechanism faces the first conveying belt; a second conveying belt is arranged above the first conveying belt in parallel, two second flattening plates are fixedly arranged on the second conveying belt, and a driving mechanism acting on the second conveying belt is arranged on the first conveying belt; a first flattening plate is arranged on the surface of a belt on the first conveying belt in a sliding mode, a swing mechanism is arranged on the first conveying belt, and the swing mechanism is in transmission fit with the first flattening plate. And the swing mechanism can drive the first flattening plate to swing in a reciprocating manner, so that the coal discharged by the processing mechanism is preliminarily flattened. And the driving mechanism can drive the second flattening plate to move through the second conveying belt, so that the coal is flattened and shunted again, the coal is further prevented from blocking the interior of the second flattening plate, the subsequent flattening effect is guaranteed, and observation is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of coal sampling and conveying equipment, and particularly relates to integrated belt conveying equipment for coal sampling and conveying. Background Art

[0002] Coal sampling refers to the process of collecting and preparing samples from coal. The purpose is to obtain representative coal samples so that the fundamental properties of the coal can be reflected through testing, providing a basis for the acceptance and settlement of the coal. Coal sampling usually uses an integrated sampling device, including weighing, crushing, and reduction. The reduced coal needs to be conveyed by belt for the next step of bagging and transportation. During the belt transportation process, the coal can be flattened and combed by a flat plate, which is convenient for observing the type of coal, agglomerate size and other data. However, in the process of flattening and combing the coal on existing transportation equipment, the flat plate is often fixed, and the coal can easily block the slot of the flat plate, thereby affecting subsequent observations.

[0003] The existing patent with announcement number CN219340625U discloses an integrated coal sampling and sampling belt conveyor device, which is equipped with a bracket, weighing belt, feeding belt, handle, scraper, slot plate, screw, roller, etc. When in use, the vertical position of the scraper is adjusted by rotating the handle according to the amount and height of the coal piled on the surface of the feeding belt. The slot plate set on the scraper will flatten and comb the coal, making it easy to observe the current coal type, agglomerate size and other data.

[0004] However, the scraper in the above solution is stationary during the leveling process, and the coal discharged from the discharge pipe is prone to accumulation. When the accumulated coal passes through the stationary scraper, it is easy to get stuck inside the slot, thereby affecting the subsequent leveling effect and further affecting the subsequent product observation. Utility Model Content

[0005] In order to solve the problems existing in the background technology, the utility model provides an integrated belt conveyor device for coal mining and sampling.

[0006] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0007] A belt conveyor integrated equipment for coal sampling and preparation comprises a bracket and a support plate, wherein the bracket is provided with a processing mechanism, the support plate is provided with a first conveyor belt, and the output end of the processing mechanism faces the first conveyor belt; a second conveyor belt is provided above and parallel to the first conveyor belt, two second spreading plates are fixedly provided on the second conveyor belt, and the first conveyor belt is provided with a driving mechanism acting on the second conveyor belt; a first spreading plate is slidingly provided on the surface of the belt on the first conveyor belt, and the first conveyor belt is provided with a swinging mechanism, which cooperates with the first spreading plate in transmission.

[0008] Furthermore, the processing mechanism includes a weighing belt, a weighing belt is installed on the top of the bracket, a reducer is installed between the bracket and the support plate, a discharge port is provided on one side of the reducer, and the discharge port faces the first conveyor belt; a crusher is installed on the top of the reducer, and a feed hopper is provided on the top of the crusher, and the feed hopper is located below the end of the weighing belt.

[0009] Furthermore, there are four support plates, and the four support plates are symmetrical in pairs. A baffle is fixedly arranged between the two support plates on the same side, and the two baffles are symmetrically arranged. Two rollers are symmetrically arranged to rotate between the two baffles, and the first conveyor belt drive sleeve is arranged on the outer surface of the two rollers; a first motor is fixedly installed on one of the support plates, and the output shaft of the first motor is coaxially fixedly connected to one end of one of the rollers.

[0010] Furthermore, two support plates are fixedly arranged on each of the baffles, the support plates on the two baffles correspond to each other one by one, a conveying roller is rotatably arranged between each support plate and the corresponding support plate, and the second conveyor belt transmission sleeve is arranged on the outer surface of the two conveying rollers; the driving mechanism includes a second motor, the second motor is fixedly mounted on one of the support plates, and the output shaft of the second motor is coaxially fixedly connected to one end of one of the conveying rollers.

[0011] Furthermore, the swing mechanism includes a support platform, wherein a support platform is fixedly arranged on the upper part of the two support plates, and a circular plate is rotatably arranged on the top of the support platform; a connecting block is fixedly arranged on one side of the support platform, and a rotating shaft is arranged in the connecting block and rotates through the vertical direction, the bottom of the rotating shaft is fixedly connected to the first spreading plate, and a swing member is fixedly arranged on the top of the rotating shaft, and a matching column is fixedly arranged on the top of the swing member; a matching column is fixedly eccentrically arranged on the top of the circular plate, and a connecting rod is provided between the two matching columns, and both ends of the connecting rod are rotatably connected to the two matching columns in a one-to-one manner; a third motor is fixedly embedded in the interior of the support platform, and the output shaft of the third motor is coaxially fixedly connected to the bottom of the circular plate.

[0012] Furthermore, a first transmission member is provided between the first conveyor belt and the second conveyor belt, and a second transmission member is provided between the second conveyor belt and the swing mechanism.

[0013] Furthermore, the first transmission member includes a belt, and first pulleys are fixedly provided at both ends of the roller not connected to the first motor, and second pulleys are coaxially fixedly provided at both ends of one of the conveying rollers, and a belt is provided between each first pulley and the corresponding second pulley.

[0014] Furthermore, the second transmission member includes a connecting rod, and a first gear is fixedly provided at one end of the conveying roller that is not connected to the second pulley; a connecting rod is arranged to rotate horizontally in the support platform, and one end of the connecting rod rotates through the support platform and a second gear is fixedly provided coaxially, and the second gear is meshed with the first gear for transmission; a first bevel gear is fixedly sleeved on the outer surface of the connecting rod, and a second bevel gear is fixedly provided at the bottom of the circular plate, and the second bevel gear is meshed with the first bevel gear for transmission.

[0015] This application has the following beneficial effects:

[0016] 1. The swing mechanism drives the first spreading plate to swing back and forth, thereby performing a preliminary leveling process on the coal discharged from the processing unit. The swinging of the first spreading plate not only prevents coal from clogging within itself, but also effectively reduces the height of coal accumulation on the surface of the first conveyor belt, distributing the coal more evenly across the first conveyor belt, thereby preventing coal from clogging the interior of the second spreading plate. Simultaneously, the drive mechanism drives the second spreading plate via the second conveyor belt, further leveling and diverting the coal, further preventing coal from clogging the interior of the second spreading plate, thereby ensuring subsequent leveling and facilitating observation.

[0017] 2. The first transmission element allows the first conveyor belt to operate synchronously with the second conveyor belt, thereby driving the second spreading plate to level and divert the coal. Simultaneously, the second transmission element drives the second conveyor belt to swing back and forth, further leveling the coal. This solution offers improved transmission efficiency, fewer drive sources, and simpler operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood by reading the detailed description below with reference to the accompanying drawings. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0019] Figure 1 It is a three-dimensional structural diagram of the first embodiment of the present utility model.

[0020] Figure 2 It is a schematic diagram of the position structure of the swing part of the utility model.

[0021] Figure 3 This is a schematic diagram of the position relationship structure of the third motor of the present utility model.

[0022] Figure 4 It is a schematic diagram of the three-dimensional structure of the second embodiment of the present utility model.

[0023] Figure 5It is a structural schematic diagram of the first connecting member and the second connecting member of the utility model.

[0024] Description of reference numerals:

[0025] 1. Bracket; 2. Weighing belt; 3. Reduction machine; 4. Discharge port; 5. Crusher; 6. Feed hopper; 7. Support plate; 8. First conveyor belt; 9. First motor; 10. Baffle; 11. Hook; 12. Second conveyor belt; 13. Second motor; 14. Second spreading plate; 15. Support platform; 16. Third motor; 17. Circular plate; 18. Connecting rod; 19. Swinging member; 20. First spreading plate; 21. First pulley; 22. Belt; 23. First gear; 24. Connecting rod; 25. Second gear; 26. First bevel gear; 27. Second bevel gear; 28. Roller; 29. ​​Support plate; 30. Conveyor roller; 31. Connecting block; 32. Rotating shaft; 33. Matching column; 34. Second pulley. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0027] Example 1: Figure 1-Figure 3 As shown, the technical solution adopted by the present invention is as follows: an integrated belt conveyor device for coal sampling and sampling, comprising a bracket 1 and a support plate 7, a processing mechanism being provided on the bracket 1, a first conveyor belt 8 being provided on the support plate 7, the processing mechanism comprising a weighing belt 2, and a weighing belt 2 being provided on the top of the bracket 1. A reducer 3 is fixedly arranged between the bracket 1 and the support plate 7, a discharge port 4 is provided on one side of the reducer 3, and the discharge port 4 faces the first conveyor belt 8. A crusher 5 is provided on the top of the reducer 3, and a feed hopper 6 is provided on the top of the crusher 5. The weighing belt 2, reducer 3 and crusher 5 in this solution are the same as those used in the patent with publication number CN219340625U, so they will not be described in detail.

[0028] The coal is loaded and unloaded by the weighing belt 2, so that it is weighed while being transported on the weighing belt 2. Then the coal enters the crusher 5 through the feed hopper 6, is crushed by the crusher 5, and then enters the reducer 3 for reduction. The coal is discharged from the discharge port 4 to the first conveyor belt 8 for flattening.

[0029] In this embodiment, four support plates 7 are provided, symmetrically arranged in pairs. A baffle 10 is fixedly connected between two support plates 7 on the same side, and the two baffles 10 are arranged facing each other. Two rollers 28 are rotatably mounted between the two baffles 10. The two rollers 28 are symmetrically arranged, and the outer surfaces of the two rollers 28 are driven by the same first conveyor belt 8. A first motor 9 is fixedly mounted on one of the support plates 7, and the output shaft of the first motor 9 is coaxially fixedly connected to one end of one of the rollers 28. In addition, a plurality of hooks 11 are fixedly mounted at the ends of both baffles 10 to support the loading belt.

[0030] Start the first motor 9, and drive the roller 28 to rotate through the output shaft of the first motor 9, thereby driving the first conveyor belt 8 to rotate, so that the processed coal is transported on the first conveyor belt 8, and then bagged at the end of the first conveyor belt 8.

[0031] Two support plates 29 are fixedly mounted on each baffle 10, with the support plates 29 on the two baffles 10 corresponding to each other. A conveyor roller 30 is rotatably mounted between each support plate 29 and its corresponding support plate 29. A second conveyor belt 12 is driven and sleeved on the outer surfaces of the two conveyor rollers 30. The second conveyor belt 12 is positioned above and parallel to the first conveyor belt 8. Two second spreading plates 14 are fixedly mounted on the outer surface of the second conveyor belt 12, each of which has a plurality of slots.

[0032] The end of the second spreading plate 14 connected to the second conveyor belt 12 has a certain elasticity, and can be made of rubber. In addition, when the second spreading plate 14 rotates to the lower belt of the second conveyor belt 12, a certain gap is left between the end of the second pushing plate 14 not connected to the second conveyor belt 12 and the upper belt of the first conveyor belt 8, which is used to spread the coal.

[0033] The support plate 29 is provided with a driving mechanism for driving the second conveyor belt 12 to operate. The driving mechanism includes a second motor 13. The second motor 13 is fixedly mounted on one of the support plates 29. The output shaft of the second motor 13 is coaxially fixedly connected to one end of one of the conveyor rollers 30.

[0034] The second motor 13 is started, and the output shaft of the second motor 13 drives the conveyor roller 30 to rotate, thereby driving the second conveyor belt 12 to rotate, and further driving the second spreading plate 14 to move synchronously with the second conveyor belt 12. When the second spreading plate 14 moves below the second conveyor belt 12, it will spread and divert the coal to prevent the coal from clogging the interior of the second spreading plate 14, thereby ensuring the subsequent leveling effect.

[0035] A first spreading plate 20 is slidingly provided on the surface of the first conveyor belt 8 , and a plurality of slots are provided on the first spreading plate 20 . A swing mechanism for driving the first spreading plate 20 to swing back and forth is provided above the first conveyor belt 8 .

[0036] The swing mechanism includes a support platform 15, wherein a support platform 15 is fixedly arranged above the two support plates 29, and the support platform 15 is arranged in an n-shaped manner, and a circular plate 17 is rotatably arranged on the top of the support platform 15. A connecting block 31 is fixedly arranged on one side of the support platform 15, and a rotating shaft 32 is arranged in the connecting block 31 so as to rotate and penetrate the connecting block 31 in the vertical direction. The bottom of the rotating shaft 32 is fixedly connected to the top of the first spreading plate 20, and a swing member 19 is fixedly arranged on the top of the rotating shaft 32, and a matching column 33 is fixedly arranged on the top of the end of the swing member 19 away from the rotating shaft 32. In addition, a matching column 33 is fixedly arranged eccentrically on the top of the circular plate 17, and a connecting rod 18 is provided between the two matching columns 33, and the two ends of the connecting rod 18 are rotatably connected to the two matching columns 33 in a one-to-one correspondence. The third motor 16 is fixedly embedded in the interior of the support platform 15, and the bottom of the third motor 16 is coaxially fixedly connected to the bottom of the circular plate 17.

[0037] The third motor 16 is activated, and its output shaft drives the circular plate 17 to rotate. The circular plate 17, via the connecting rod 18, drives the swinging member 19 to swing back and forth about the central axis of the rotating shaft 32. This, in turn, drives the first spreading plate 20 to swing back and forth through the rotating shaft 32, thereby performing a preliminary flattening process on the coal discharged from the processing mechanism. The swinging of the first spreading plate 20 not only prevents coal from becoming clogged within its own slots, but also effectively reduces the height of coal accumulation on the surface of the first conveyor belt 8, distributing the coal more evenly across the surface of the first conveyor belt 8, thereby preventing coal from becoming clogged in the slots of the second spreading plate 14. During this process, the connecting end of the connecting rod 18 and the mating column 33 rotates relative to each other around the connection point between the connecting rod 18 and the mating column 33.

[0038] The working principle of embodiment 1: When in use, the coal is loaded and unloaded through the weighing belt 2, so that the coal is weighed while being transported on the weighing belt 2. Then the coal enters the crusher 5 through the feed hopper 6, is crushed by the crusher 5, and then enters the reducer 3 for reduction. The coal is discharged from the discharge port 4 to the first conveyor belt 8 for flattening.

[0039] Start the first motor 9, and drive the roller 28 to rotate through the output shaft of the first motor 9, thereby driving the first conveyor belt 8 to rotate, so that the processed coal is transported on the first conveyor belt 8 and then bagged at the end of the first conveyor belt 8.

[0040] During the operation of the first conveyor belt 8, the third motor 16 is started, and the output shaft of the third motor 16 drives the circular plate 17 to rotate. The circular plate 17 drives the swinging member 19 to swing back and forth about the central axis of the rotating shaft 32 through the connecting rod 18, thereby driving the first spreading plate 20 to swing back and forth through the rotating shaft 32, thereby performing a preliminary flattening process on the coal discharged from the processing mechanism. The swinging of the first spreading plate 20 not only prevents the coal from clogging in its own slots, but also effectively reduces the height of the coal accumulation on the surface of the first conveyor belt 8, making the coal more evenly distributed on the surface of the first conveyor belt 8, thereby preventing the coal from clogging in the slots of the second spreading plate 14.

[0041] At the same time, the second motor 13 is started, and the output shaft of the second motor 13 drives the conveyor roller 30 to rotate, thereby driving the second conveyor belt 12 to rotate, and further driving the second spreading plate 14 to move synchronously with the second conveyor belt 12. When the second spreading plate 14 moves below the second conveyor belt 12, it will spread and divert the coal to prevent the coal from clogging the interior of the second spreading plate. The alternating spreading of the two second spreading plates 14 ensures the subsequent leveling effect.

[0042] Example 2: Figure 4-Figure 5 As shown, the difference between this second embodiment and the first embodiment lies in: a first transmission member is provided between the first conveyor belt 8 and the second conveyor belt 12, and a second transmission member is provided between the second conveyor belt 12 and the circular plate 17. The provision of the first transmission member allows the operation of the first conveyor belt 8 to simultaneously drive the second conveyor belt 12, thereby driving the movement of the second spreading plate 14, thereby flattening and diverting the coal. Simultaneously, driven by the second transmission member, the operation of the second conveyor belt 12 drives the first spreading plate 20 to swing back and forth, thereby flattening the coal.

[0043] The first transmission member includes a belt 22, and a first pulley 21 is coaxially fixedly provided at both ends of the roller 28 that is not connected to the first motor 9. A second pulley 34 is coaxially fixedly provided at both ends of one of the conveying rollers 30. The first pulley 21 corresponds to the second pulley 34 one by one, and a belt 22 is provided for transmission between each first pulley 21 and the corresponding second pulley 34.

[0044] Start the first motor 9, and the output shaft of the first motor 9 drives the first conveyor belt 8 to rotate through the roller 28 connected thereto, thereby driving the first pulley 21 to rotate through another roller 28, and then driving the second conveyor belt 12 to rotate through the transmission cooperation between the belt 22 and the second pulley 34.

[0045] The second transmission member includes a connecting rod 24. One end of the conveyor roller 30 not connected to the second pulley 34 rotates through the corresponding support plate 29 and is coaxially fixed with a first gear 23. The connecting rod 24 is rotatably mounted within the support platform 15. One end of the connecting rod 24 is rotatably connected to the support platform 15, and the other end of the connecting rod 24 rotates through the support platform 15 and is coaxially fixed with a second gear 25. The second gear 25 meshes with the first gear 23 for transmission.

[0046] In addition, a first bevel gear 26 is fixedly sleeved on the outer surface of the connecting rod 24 , and a second bevel gear 27 is coaxially fixedly provided on the bottom of the circular plate 17 . The second bevel gear 27 is meshed with the first bevel gear 26 for transmission.

[0047] The rotation of the second conveyor belt 12 drives the first gear 23 to rotate through the conveyor roller 30 , thereby driving the connecting rod 24 to rotate through the second gear 25 , and further driving the circular plate 17 to rotate through the cooperation of the first bevel gear 26 and the second bevel gear 27 .

[0048] The working principle of embodiment 2: When in use, the first motor 9 is started, and the output shaft of the first motor 9 drives the first conveyor belt 8 to rotate through the roller 28 connected thereto, thereby driving the first pulley 21 to rotate through another roller 28, and then driving the second conveyor belt 12 to rotate through the transmission cooperation between the belt 22 and the second pulley 34, so that the second spreading plate 14 flattens the coal during the process of transporting coal by the first conveyor belt 8.

[0049] The rotation of the second conveyor belt 12 will drive the first gear 23 to rotate through the conveying roller 30, thereby driving the connecting rod 24 to rotate through the second gear 25, and then driving the circular plate 17 to rotate through the cooperation of the first bevel gear 26 and the second bevel gear 27, so that the first spreading plate 20 swings back and forth. The swing of the first spreading plate 20 can not only prevent the coal from being blocked inside its own slot, but also effectively reduce the height of the coal accumulation on the surface of the first conveyor belt 8, so that the coal is more evenly distributed on the surface of the first conveyor belt 8, thereby preventing the coal from being blocked in the slot of the second spreading plate 14.

[0050] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An integrated belt conveyor device for coal sampling and preparation, characterized in that: The invention comprises a bracket (1) and a support plate (7), wherein a processing mechanism is provided on the bracket (1), a first conveyor belt (8) is provided on the support plate (7), and an output end of the processing mechanism faces the first conveyor belt (8); a second conveyor belt (12) is provided above and parallel to the first conveyor belt (8), two second spreading plates (14) are fixedly provided on the second conveyor belt (12), and a driving mechanism acting on the second conveyor belt (12) is provided on the first conveyor belt (8); a first spreading plate (20) is slidably provided on the surface of the belt on the first conveyor belt (8), and a swing mechanism is provided on the first conveyor belt (8), and the swing mechanism is in transmission cooperation with the first spreading plate (20).

2. The integrated belt conveyor equipment for coal sampling and preparation according to claim 1, characterized in that: The processing mechanism includes a weighing belt (2), a weighing belt (2) is installed on the top of the bracket (1), a reducer (3) is installed between the bracket (1) and the support plate (7), a discharge port (4) is provided on one side of the reducer (3), and the discharge port (4) faces the first conveyor belt (8); a crusher (5) is installed on the top of the crusher (3), a feed hopper (6) is provided on the top of the crusher (5), and the feed hopper (6) is located below the end of the weighing belt (2).

3. The integrated belt conveyor equipment for coal sampling and preparation according to claim 1, characterized in that: The support plates (7) are provided with four, and the four support plates (7) are symmetrical in pairs. A baffle (10) is fixedly arranged between the two support plates (7) on the same side, and the two baffles (10) are symmetrically arranged. Two rollers (28) are symmetrically rotated and arranged between the two baffles (10). The first conveyor belt (8) transmission sleeve is arranged on the outer surfaces of the two rollers (28); a first motor (9) is fixedly installed on one of the support plates (7), and an output shaft of the first motor (9) is coaxially fixedly connected to one end of one of the rollers (28).

4. The integrated belt conveyor equipment for coal sampling and preparation according to claim 3, characterized in that: Two support plates (29) are fixedly arranged on each baffle (10), and the support plates (29) on the two baffles (10) correspond to each other one by one. A conveying roller (30) is rotatably arranged between each support plate (29) and the corresponding support plate (29), and a second conveyor belt (12) is driven by a sleeve arranged on the outer surfaces of the two conveying rollers (30); the driving mechanism includes a second motor (13), the second motor (13) is fixedly mounted on one of the support plates (29), and the output shaft of the second motor (13) is coaxially fixedly connected to one end of one of the conveying rollers (30).

5. The integrated belt conveyor equipment for coal sampling and preparation according to claim 4, characterized in that: The swing mechanism includes a support platform (15), wherein the support platform (15) is fixedly arranged on the upper part of the two support plates (29), and a circular plate (17) is rotatably arranged on the top of the support platform (15); a connecting block (31) is fixedly arranged on one side of the support platform (15), and a rotating shaft (32) is arranged in the connecting block (31) and is rotated and penetrated in the vertical direction, the bottom of the rotating shaft (32) is fixedly connected to the first spreading plate (20), and a swing member (19) is fixedly arranged on the top of the rotating shaft (32), and a matching column (33) is fixedly arranged on the top of the swing member (19); a matching column (33) is fixedly arranged eccentrically on the top of the circular plate (17), and a connecting rod (18) is provided between the two matching columns (33), and the two ends of the connecting rod (18) are rotatably connected to the two matching columns (33) in a one-to-one corresponding manner; a third motor (16) is fixedly embedded in the interior of the support platform (15), and the output shaft of the third motor (16) is coaxially fixedly connected to the bottom of the circular plate (17).

6. The integrated belt conveyor equipment for coal sampling and preparation according to claim 5, characterized in that: A first transmission member is provided between the first conveyor belt (8) and the second conveyor belt (12), and a second transmission member is provided between the second conveyor belt (12) and the swing mechanism.

7. The integrated belt conveyor equipment for coal sampling and preparation according to claim 6, characterized in that: The first transmission member comprises a belt (22), first pulleys (21) are fixedly provided at both ends of a roller (28) not connected to the first motor (9), second pulleys (34) are coaxially fixedly provided at both ends of one of the conveying rollers (30), and a belt (22) is provided for transmission between each first pulley (21) and the corresponding second pulley (34).

8. The integrated belt conveyor equipment for coal sampling and preparation according to claim 7, characterized in that: The second transmission member comprises a connecting rod (24), one end of the conveying roller (30) not connected to the second pulley (34) is fixedly provided with a first gear (23); the connecting rod (24) is horizontally rotatably provided in the support platform (15), one end of the connecting rod (24) rotates through the support platform (15) and is coaxially fixedly provided with a second gear (25), the second gear (25) and the first gear (23) being meshed for transmission; the outer surface of the connecting rod (24) is fixedly provided with a first bevel gear (26), the bottom of the circular plate (17) is fixedly provided with a second bevel gear (27), the second bevel gear (27) and the first bevel gear (26) being meshed for transmission.

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