Belt coal conveyor

Abstract

The utility model relates to the field of coal conveyer, especially a belt type coal conveyer, which comprises a first U-shaped seat, a tensioning roller rotatably installed on the inner wall of the two sides of the first U-shaped seat and a second motor installed on the side wall of the first U-shaped seat for driving the tensioning roller. The second cylinder driving sleeve of the first vibration mechanism drives the sliding column to slide along the arc-shaped groove, the angle of the arc-shaped block and the downward pressure of the second rubber block on the belt are adjusted, meanwhile, the second vibration rod generates high-frequency vibration and transmits it to the surface of the belt, the belt vibration can reduce the adhesion of coal on the belt, the scraper in the groove of the supporting block can be sleeved outside the second vibration rod through the mounting hole, synchronously vibrates with the vibration rod, enhances the scraping effect and solves the problem of incomplete cleaning of the traditional scraper.

Description

Technical Field

[0001] This utility model belongs to the field of coal conveyors, specifically relating to belt coal conveyors. Background Technology

[0002] In the field of coal transportation, roller conveyors are core equipment in mines, coal preparation plants and storage facilities, undertaking the task of continuous transportation of large volumes over long distances. When they are running, the conveyor belt is tensioned by rollers, and coal tends to stick to the belt as it moves along with the belt.

[0003] Currently, scrapers are usually installed on conveyors to remove adhering substances from the belt surface by adjusting the position of the scrapers. However, the scraper structure is difficult to apply vibration force, making it difficult to reduce the amount of coal adhering to the belt during transportation. When belt maintenance is required, it is inconvenient to scrape off the adhering substances on the conveyor belt, which needs further improvement. Utility Model Content

[0004] To overcome the problems of existing scraper structures being unable to apply vibration force to the belt to effectively reduce coal adhesion, and the inconvenience of scraping off the adhered material during belt maintenance, a belt coal conveyor is proposed.

[0005] The technical solution of this utility model is as follows: a belt coal conveyor, including a first U-shaped seat, tension rollers rotatably installed on the inner walls of both sides of the first U-shaped seat, and a second motor installed on the side wall of the first U-shaped seat for driving the tension rollers, with a belt sleeved on the side wall of the tension rollers; a second U-shaped seat is provided on one side of the first U-shaped seat, auxiliary rollers are rotatably installed on the inner walls of both sides of the second U-shaped seat, and support blocks are provided on both sides of the second U-shaped seat, with a first vibration mechanism provided at the upper end of the support blocks;

[0006] The first vibration mechanism includes a second cylinder, a second rubber block, and a second vibrating rod; an L-shaped rod is fixedly connected to the upper end of the support block, and an arc-shaped block is rotatably mounted on the L-shaped rod. The arc-shaped block is U-shaped, and arc-shaped grooves are opened through both sides of the arc-shaped block. A sliding column is slidably provided on the inner wall of the two arc-shaped grooves. The second cylinder is hinged to the L-shaped rod, and a sleeve is fixedly connected to the output shaft of the second cylinder. The inner wall of the sleeve and the side wall of the sliding column are in contact. The second rubber block is fixedly connected to the lower end of the arc-shaped block, and a second vibrating rod is fixedly connected through the second rubber block.

[0007] Two first limiting rings are fixed to the side wall of the auxiliary roller, and the ends of the two second rubber blocks abut against the two first limiting rings that are close to each other.

[0008] The second vibrating rod is equipped with a limiting mechanism, and the lower end of the limiting mechanism is in contact with the upper end of the belt;

[0009] The support block has a groove, and a scraper is placed on the inner wall of the groove. Multiple mounting holes are opened through the scraper. The inner diameter of the mounting holes is equal to the outer diameter of the second vibrating rod. When the inner wall of the mounting hole and the side wall of the second vibrating rod are in contact, the scraper and the belt abut against each other at their closest points.

[0010] Furthermore, the two ends of the sleeve are respectively attached to the inner walls of the two sides of the arc-shaped block, and two limiting discs are fixed to the side wall of the sliding column. The ends of the two limiting discs that are close to each other are respectively attached to the two sides of the arc-shaped block.

[0011] Furthermore, the limiting mechanism includes a mounting plate, a limiting plate, and a nut. The mounting plate is provided on the side wall of the arc-shaped block. The end of the mounting plate away from the arc-shaped block is fixed to the limiting plate. The lower end of the limiting plate is in contact with the upper end of the belt. A through hole is provided through the mounting plate. The inner wall of the through hole is in contact with the side wall of the second vibrating rod. A nut is threaded onto the side wall of the second vibrating rod. The mounting plate is pressed and fixed to the surface of the arc-shaped block by tightening the nut.

[0012] Furthermore, the second U-shaped seat is provided with a second vibration mechanism for belt vibration. The second vibration mechanism includes a first cylinder, a moving block, a rotating block, a first rubber block, a first vibrating rod, and a threaded column. The first cylinder is fixed to both sides of the second U-shaped seat. The output shaft of the first cylinder passes through the second U-shaped seat and is fixed to the moving block. The rotating block is rotatably mounted on both sides of the moving block. The first rubber block is fixed to the upper end of the rotating block. The first vibrating rod is fixed to one side of the first rubber block. The ends of the two first rubber blocks respectively abut against the two ends of the first limiting rings that are close to each other. The upper end of the first rubber block and the lower end of the auxiliary roller are in contact.

[0013] Furthermore, the second U-shaped seat is provided with a guide mechanism for limiting the second vibration mechanism. The guide mechanism includes a block and a guide rod. A block is fixedly connected to the center of the bottom surface of the inner wall of the second U-shaped seat. One end of the guide rod and one end of the spring are fixedly connected to both sides of the block. The spring is located outside the guide rod. A columnar groove is opened at the end of the two moving blocks that are close to each other. The outer wall of the other end of the guide rod is in contact with the inner wall of the columnar groove. The other end of the spring is fixedly connected to the end of the moving block that is close to the block.

[0014] Furthermore, threaded posts are threaded on both sides of the movable block, and the side walls of the threaded posts abut against the side walls of the rotating block.

[0015] Furthermore, the support block is equipped with a braking mechanism, which includes a rotating column and a first motor. A support is fixedly connected to the side wall of the support block, and the first motor is fixedly connected to the support. A rotating column is rotatably installed through one side of the support block. The ends of the two rotating columns that are close to each other are fixedly connected to the rotating shafts at both ends of the auxiliary roller, and the output shaft of the first motor is fixedly connected to the other end of one of the rotating columns.

[0016] Furthermore, two second limiting rings are fixed to the side wall of the tension roller, and the ends of the two second limiting rings that are close to each other are respectively attached to the two sides of the belt.

[0017] The beneficial effects of this utility model are:

[0018] 1. The second cylinder of the first vibration mechanism drives the sleeve to move the sliding column along the arc groove, adjusts the angle of the arc block and the downward pressure of the second rubber block on the belt, and at the same time, the second vibrating rod generates high-frequency vibration and transmits it to the surface of the belt. The belt vibration can reduce the coal adhering to the belt. The scraper in the support block groove can be sleeved on the outside of the second vibrating rod through the mounting hole and vibrates synchronously with the vibrating rod to enhance the scraping effect and solve the problem of incomplete cleaning by traditional scrapers.

[0019] 2. The scraper can be quickly disassembled and assembled by cooperating with the second vibrating rod through the mounting hole. During maintenance, there is no need to disassemble the entire vibration mechanism. Only the scraper needs to be removed along the vibrating rod for cleaning or replacement. The first cylinder of the second vibration mechanism pushes the moving block to move along the guide rod, so that the first rubber block abuts against the first limiting ring of the auxiliary roller. The first vibrating rod applies vibration from below the belt, forming a two-way force with the first vibration mechanism above, which can further peel off the adhering coal.

[0020] 3. The limiting rings of the auxiliary roller and the tension roller limit the edge of the belt from the upper and lower sides respectively to prevent the belt from running off-track. The first motor of the braking mechanism drives the auxiliary roller through the rotating column. When the auxiliary roller rotates in the opposite direction to the tension roller, the coal adhering to the belt can be easily separated from the belt. Attached Figure Description

[0021] Figure 1 The diagram shown is a three-dimensional structural schematic of this utility model;

[0022] Figure 2 The diagram shown is a three-dimensional structural schematic of the first vibration mechanism of this utility model.

[0023] Figure 3 The diagram shown is a three-dimensional structural schematic of the guide mechanism of this utility model;

[0024] Figure 4 The diagram shown is a plan view of the second vibration mechanism of this utility model.

[0025] Figure 5 The diagram shown is a three-dimensional structural schematic of the braking mechanism of this utility model.

[0026] Figure 6 The diagram shown is a three-dimensional structural schematic of the limiting mechanism of this utility model;

[0027] Figure 7 The diagram shown is a three-dimensional structural schematic of the tension roller of this utility model.

[0028] The labels in the attached diagram are as follows: 1. First U-shaped seat; 2. Tensioning roller; 3. Second U-shaped seat; 31. First cylinder; 32. Moving block; 33. Rotating block; 34. First rubber block; 35. First vibrating rod; 36. Threaded column; 4. Auxiliary roller; 5. Support block; 6. First vibration mechanism; 61. L-shaped rod; 62. Arc-shaped block; 63. Arc-shaped groove; 64. Sliding column; 65. Second cylinder; 66. Sleeve; 67. Limiting plate; 68. Second rubber block; 69. Second vibrating rod; 7. First limiting ring; 8. Vertical block; 9. Guide rod; 10. Spring; 11. Rotating column; 12. First motor; 13. Mounting plate; 14. Limiting plate; 15. Nut; 16. Second limiting ring; 17. Second motor; 18. Scraper; 19. Mounting hole. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0030] Example 1: Please refer to Figures 1-7 A belt coal conveyor includes a first U-shaped seat 1, tension rollers 2 rotatably mounted on the inner walls of both sides of the first U-shaped seat 1, and a second motor 17 mounted on the side wall of the first U-shaped seat 1 for driving the tension rollers 2. A belt is sleeved on the side wall of the tension rollers 2. A second U-shaped seat 3 is provided on one side of the first U-shaped seat 1. Auxiliary rollers 4 are rotatably mounted on the inner walls of both sides of the second U-shaped seat 3. Support blocks 5 are provided on both sides of the second U-shaped seat 3. A first vibration mechanism 6 is provided on the upper end of the support blocks 5.

[0031] The first vibration mechanism 6 includes a second cylinder 65, a second rubber block 68, and a second vibrating rod 69; the upper end of the support block 5 is fixedly connected to an L-shaped rod 61, and an arc-shaped block 62 is rotatably mounted on the L-shaped rod 61. The arc-shaped block 62 is U-shaped, and arc-shaped grooves 63 are opened through both sides of the arc-shaped block 62. The inner walls of the two arc-shaped grooves 63 are slidably provided with sliding columns 64. The second cylinder 65 is hinged to the L-shaped rod 61, and a sleeve 66 is fixedly connected to the output shaft of the second cylinder 65. The inner wall of the sleeve 66 and the side wall of the sliding column 64 are in contact. The lower end of the arc-shaped block 62 is fixedly connected to a second rubber block 68, and the second vibrating rod 69 is fixedly connected through the second rubber block 68.

[0032] Two first limiting rings 7 are fixed to the side wall of the auxiliary roller 4, and the ends of the two second rubber blocks 68 abut against the two first limiting rings 7 that are close to each other.

[0033] The second vibrating rod 69 is equipped with a limiting mechanism, and the lower end of the limiting mechanism is in contact with the upper end of the belt.

[0034] The support block 5 has a groove, and a scraper 18 is placed on the inner wall of the groove. Multiple mounting holes 19 are opened through the scraper 18. The inner diameter of the mounting hole 19 is equal to the outer diameter of the second vibrating rod 69. When the inner wall of the mounting hole 19 and the side wall of the second vibrating rod 69 are in contact, the scraper 18 and the belt abut against each other at their respective ends.

[0035] In use, the second motor 17 drives the tension roller 2 to rotate, so that the belt rotates along the tension roller 2. When the belt rotates, it will move along the side wall of the auxiliary roller 4. The limiting mechanism can limit and guide the coal put into the belt, so as to realize the limited conveying of coal. The second cylinder 65 is turned on to make the sleeve 66 drive the sliding column 64 to move. The sliding column 64 slides along the inner wall of the two arc grooves 63, which can make the second rubber block 68 apply downward pressure to the belt. The second vibrator 69 is turned on to make the second rubber block 68 vibrate. The vibration will be transmitted to the belt, which can reduce the adhesion of coal on the belt.

[0036] Please see Figure 1 and Figure 2 In this embodiment, the two ends of the sleeve 66 are respectively attached to the inner walls of the two sides of the arc block 62, and two limiting discs 67 are fixed to the side wall of the sliding column 64. The ends of the two limiting discs 67 that are close to each other are respectively attached to the two sides of the arc block 62, which is conducive to the stable rotation of the sleeve 66.

[0037] Please see Figure 1 and Figure 2 and Figure 6 In this embodiment, the limiting mechanism includes a mounting plate 13, a limiting plate 14, and a nut 15. The mounting plate 13 is provided on the side wall of the arc-shaped block 62. The end of the mounting plate 13 away from the arc-shaped block 62 is fixed to the limiting plate 14. The lower end of the limiting plate 14 is attached to the upper end of the belt. A through hole is provided on the mounting plate 13. The inner wall of the through hole is attached to the side wall of the second vibrating rod 69. The nut 15 is threaded on the side wall of the second vibrating rod 69. By tightening the nut 15, the mounting plate 13 is pressed and fixed to the surface of the arc-shaped block 62. The vibration function is combined with the scraper 18. Through the synergistic effect of adjustable pressure and high-frequency vibration, the efficiency of removing adhering substances is improved.

[0038] Please see Figure 1 and Figure 7 In this embodiment, two second limiting rings 16 are fixed to the side wall of the tension roller 2. The ends of the two second limiting rings 16 that are close to each other are respectively attached to the two sides of the belt, which is conducive to the stable rotation of the belt.

[0039] Example 2: Please refer to Figure 4Based on Embodiment 1, this application provides a technical solution: a second vibration mechanism for belt vibration is provided on the second U-shaped seat 3. The second vibration mechanism includes a first cylinder 31, a moving block 32, a rotating block 33, a first rubber block 34, a first vibrating rod 35, and a threaded column 36. The first cylinder 31 is fixedly connected to both sides of the second U-shaped seat 3. The output shaft of the first cylinder 31 passes through the second U-shaped seat 3 and is fixedly connected to the moving block 32. The rotating block 33 is rotatably installed on both sides of the moving block 32. The first rubber block 34 is fixedly connected to the upper end of the rotating block 33. The first vibrating rod 35 is fixedly connected through one side of the first rubber block 34. The ends of the two first rubber blocks 34 respectively abut against the two ends of the first limiting rings 7 that are close to each other. The upper end of the first rubber block 34 is in contact with the lower end of the auxiliary roller 4, which supplements the design of the vibration source below. The first cylinder 31 drives the moving block 32 to make the first rubber block 34 abut against the auxiliary roller 4. The first vibrating rod 35 and the upper second vibrating rod 69 form bidirectional vibration to enhance the vibration cleaning effect.

[0040] Please see Figure 1 and Figure 4 In this embodiment, threaded posts 36 are threadedly installed on both sides of the movable block 32. The side wall of the threaded post 36 abuts against the side wall of the rotating block 33. The threaded posts 36 threadedly installed on both sides of the movable block 32 can abut against the side wall of the rotating block 33 to fix the position of the rotating block 33, thereby making the upper end of the first rubber block 34 and the lower end of the auxiliary roller 4 stably fit together.

[0041] Example 3: Please refer to Figure 3 and Figure 4 Based on Embodiment 2, this application provides a technical solution: the second U-shaped seat 3 is provided with a guide mechanism for limiting the second vibration mechanism. The guide mechanism includes a block 8 and a guide rod 9. The block 8 is fixedly connected to the center of the bottom surface of the inner wall of the second U-shaped seat 3. One end of the guide rod 9 and one end of the spring 10 are fixedly connected to both sides of the block 8. The spring 10 is located outside the guide rod 9. A columnar groove is opened at one end of the two moving blocks 32 that are close to each other. The outer wall of the other end of the guide rod 9 is in contact with the inner wall of the columnar groove. The other end of the spring 10 is fixedly connected to the end of the moving block 32 that is close to the block 8. The guide rod 9 and the columnar groove of the moving block 32 cooperate to limit the movement. The spring 10 provides a buffering force to ensure that the second vibration mechanism moves smoothly, reduce the rigid impact of vibration on the frame, and improve the stability and service life of the equipment.

[0042] Example 4: Please refer to Figure 5Based on Embodiment 1, this application provides a technical solution: a braking mechanism is provided on the support block 5, the braking mechanism includes a rotating column 11 and a first motor 12, a support is fixedly connected to the side wall of the support block 5, and the first motor 12 is fixedly connected to the support. A rotating column 11 is rotatably installed through one side of the support block 5, and the ends of the two rotating columns 11 that are close to each other are respectively fixedly connected to the two ends of the auxiliary roller 4. The output shaft of the first motor 12 is fixedly connected to the other end of one of the rotating columns 11. The auxiliary roller 4 is driven independently by the first motor 12, and the speed and direction of the auxiliary roller 4 can be flexibly adjusted. When rotating in the opposite direction to the tension roller 2, the difference in roller movement is used to assist the coal to be removed from the belt, enhance the adaptability of the equipment to complex working conditions, and further reduce the adhesion problem.

[0043] Working principle: When the belt coal conveyor is working, the second motor 17 drives the tension roller 2 to rotate, which drives the belt sleeved on the side wall of the first U-shaped seat 1 to rotate along the tension roller 2. When the belt rotates, it moves along the side wall of the auxiliary roller 4. The second limiting ring 16 on the side wall of the tension roller 2 and the first limiting ring 7 on the side wall of the auxiliary roller 4 respectively fit with the edge of the belt from the upper and lower sides to prevent the belt from running off-center.

[0044] Then, the mounting plate 13 in the limiting mechanism is fixed to the side wall of the arc block 62, and the lower end of the limiting plate 14 at the end away from the arc block 62 is attached to the upper end of the belt to limit and guide the coal fed into the belt, thereby realizing the limited conveying.

[0045] When it is necessary to remove coal adhering to the belt surface, the second cylinder 65 is activated, and its output shaft drives the sleeve 66 to move. The inner wall of the sleeve 66 is in contact with the side wall of the sliding column 64, which drives the sliding column 64 to slide along the arc grooves 63 on both sides of the arc block 62. This changes the angle of the arc block 62, which is rotatably mounted on the L-shaped rod 61, thereby adjusting the downward pressure of the lower end of the second rubber block 68 on the belt. At the same time, the second vibrator 69 is activated. It is fixed to the second rubber block 68 and the high-frequency vibration generated is transmitted to the belt surface through the second rubber block 68, which breaks the adhesion between the coal and the belt.

[0046] In addition, the mounting plate 13 is removed from the side wall of the second vibrating rod 69, and the scraper 18 in the groove of the support block 5 is sleeved on the outside of the second vibrating rod 69 through the mounting hole 19. The scraper 18 is locked to the side wall of the arc block 62 using the nut 15. When the inner wall of the mounting hole 19 is in contact with the side wall of the second vibrating rod 69, the scraper 18 abuts against the surface of the belt and vibrates synchronously with the second vibrating rod 69, thereby enhancing the scraping effect on the adhering material.

[0047] In addition, the device is also equipped with a second vibration mechanism. The first cylinder 31 is activated to push the moving block 32 to move along the guide rod 9. The spring 10 is sleeved on the outside of the guide rod 9, and its two ends are connected to the upright block 8 and the moving block 32 respectively to provide buffer limit. The end of the first rubber block 34 abuts against the first limit ring 7. The first vibrating rod 35 applies vibration from below the belt, forming a bidirectional vibration resultant force with the first vibration mechanism 6 above, further peeling off the adhering coal.

[0048] In the braking mechanism, the first motor 12 is fixedly connected to the support block 5, and its output shaft is fixedly connected to the rotating column 11. The rotating column 11 is installed through the support block 5 and fixedly connected to the rotating shafts at both ends of the auxiliary roller 4, driving the auxiliary roller 4 to rotate. When the auxiliary roller 4 rotates in the opposite direction to the tension roller 2, it can help the coal adhering to the belt to separate from the belt.

Claims

1. A belt coal conveyor, comprising a first U-shaped seat (1), tension rollers (2) rotatably mounted on the inner walls of both sides of the first U-shaped seat (1), and a second motor (17) mounted on the side wall of the first U-shaped seat (1) for driving the tension rollers (2), wherein a belt is sleeved on the side wall of the tension rollers (2); characterized in that: The first U-shaped seat (1) is provided with a second U-shaped seat (3) on one side. The inner walls of the second U-shaped seat (3) are rotatably equipped with auxiliary rollers (4). The second U-shaped seat (3) is provided with support blocks (5) on both sides. The upper end of the support block (5) is provided with a first vibration mechanism (6). The first vibration mechanism (6) includes a second cylinder (65), a second rubber block (68), and a second vibrating rod (69); the upper end of the support block (5) is fixedly connected to an L-shaped rod (61), an arc-shaped block (62) is rotatably mounted on the L-shaped rod (61), the arc-shaped block (62) is U-shaped, and arc-shaped grooves (63) are opened through both sides of the arc-shaped block (62). The inner walls of the two arc-shaped grooves (63) are slidably provided with sliding columns (64). The second cylinder (65) is hinged on the L-shaped rod (61), and a sleeve (66) is fixedly connected to the output shaft of the second cylinder (65). The inner wall of the sleeve (66) and the side wall of the sliding column (64) are in contact. The lower end of the arc-shaped block (62) is fixedly connected to a second rubber block (68), and the second vibrating rod (69) is fixedly connected through the second rubber block (68). The auxiliary roller (4) has two first limiting rings (7) fixed to its side wall, and the ends of the two second rubber blocks (68) abut against the two first limiting rings (7) that are close to each other. The second vibrating rod (69) is provided with a limiting mechanism, and the lower end of the limiting mechanism is in contact with the upper end of the belt; The support block (5) has a groove, and a scraper (18) is placed on the inner wall of the groove. Multiple mounting holes (19) are opened through the scraper (18). The inner diameter of the mounting hole (19) is equal to the outer diameter of the second vibrating rod (69). When the inner wall of the mounting hole (19) and the side wall of the second vibrating rod (69) are in contact, the scraper (18) and the belt approach each other at one end.

2. The belt coal conveyor according to claim 1, characterized in that: The two ends of the sleeve (66) are respectively attached to the inner walls of the two sides of the arc block (62), and the sliding column (64) has two limiting discs (67) fixed to its side wall. The two limiting discs (67) are respectively attached to the two sides of the arc block (62) at their close ends.

3. The belt coal conveyor according to claim 1, characterized in that: The limiting mechanism includes a mounting plate (13), a limiting plate (14), and a nut (15). The mounting plate (13) is provided on the side wall of the arc block (62). The end of the mounting plate (13) away from the arc block (62) is fixed to the limiting plate (14). The lower end of the limiting plate (14) is in contact with the upper end of the belt. A through hole is provided on the mounting plate (13). The inner wall of the through hole is in contact with the side wall of the second vibrating rod (69). The side wall of the second vibrating rod (69) is threaded with a nut (15). By tightening the nut (15), the mounting plate (13) is pressed and fixed on the surface of the arc block (62).

4. The belt coal conveyor according to claim 1, characterized in that: The second U-shaped seat (3) is provided with a second vibration mechanism for belt vibration. The second vibration mechanism includes a first cylinder (31), a moving block (32), a rotating block (33), a first rubber block (34), a first vibrating rod (35), and a threaded column (36). The first cylinder (31) is fixedly connected to both sides of the second U-shaped seat (3). The output shaft of the first cylinder (31) passes through the second U-shaped seat (3) and is fixedly connected to the moving block (32). The rotating block (33) is rotatably installed on both sides of the moving block (32). The first rubber block (34) is fixedly connected to the upper end of the rotating block (33). The first vibrating rod (35) is fixedly connected through one side of the first rubber block (34). The ends of the two first rubber blocks (34) respectively abut against the two first limiting rings (7) that are close to each other. The upper end of the first rubber block (34) and the lower end of the auxiliary roller (4) are in contact.

5. The belt coal conveyor according to claim 4, characterized in that: The second U-shaped seat (3) is provided with a guide mechanism for limiting the second vibration mechanism. The guide mechanism includes a block (8) and a guide rod (9). The block (8) is fixedly connected to the center of the bottom surface of the inner wall of the second U-shaped seat (3). One end of the guide rod (9) and one end of the spring (10) are fixedly connected to both sides of the block (8). The spring (10) is located outside the guide rod (9). A columnar groove is opened at one end of the two moving blocks (32) that are close to each other. The outer wall of the other end of the guide rod (9) is in contact with the inner wall of the columnar groove. The other end of the spring (10) is fixedly connected to the end of the moving block (32) that is close to the block (8).

6. The belt coal conveyor according to claim 4, characterized in that: Both sides of the movable block (32) are threaded with threaded posts (36), and the side walls of the threaded posts (36) and the side walls of the rotating block (33) abut against each other.

7. The belt coal conveyor according to claim 1, characterized in that: A braking mechanism is provided on the support block (5). The braking mechanism includes a rotating column (11) and a first motor (12). A support is fixedly connected to the side wall of the support block (5). The first motor (12) is fixedly connected to the support. A rotating column (11) is rotatably installed through one side of the support block (5). The ends of the two rotating columns (11) that are close to each other are fixedly connected to the two ends of the auxiliary roller (4). The output shaft of the first motor (12) is fixedly connected to the other end of one of the rotating columns (11).

8. The belt coal conveyor according to claim 1, characterized in that: The tension roller (2) has two second limiting rings (16) fixed to its side wall. The ends of the two second limiting rings (16) that are close to each other are respectively attached to the two sides of the belt.

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