Anti-deviation device for belt of coal feeder

Abstract

The invention relates to the technical field of belt limiting, one embodiment of the invention provides a coal feeder belt deviation preventing device which is installed on a belt conveyor, the belt conveyor comprises a rack, conveying rollers and a belt, the two conveying rollers are rotationally arranged in the rack, supporting through grooves are formed in the two opposite side walls of the rack, and the belt is arranged in the supporting through grooves. A belt is arranged between the two conveying rollers in a transmission mode, a first motor is fixedly arranged on the machine frame, the output end of the first motor is fixedly connected with the adjacent conveying rollers, and the device further comprises a supporting roller, a supporting block, a position adjusting mechanism, a limiting groove and a relative moving mechanism. Supporting columns are fixedly arranged at the ends of the supporting rollers, the supporting columns penetrate through the bottoms of the supporting through grooves and extend out of the rack, the belt bypasses the supporting rollers, and through the technical scheme, the technical problem that in the prior art, the belt is prone to deviating on the surfaces of the conveying rollers is solved.

Description

Technical Field

[0001] Embodiments of the present disclosure relate to the technical field of belt limit, and specifically, to a belt deviation prevention device for a coal feeder. Background Art

[0002] A coal feeder is a part of a coal pulverizing system. Its function is to adjust the coal feeding amount according to the load of the coal mill and continuously and evenly feed raw coal into the coal mill. The most widely used coal feeder in China is a belt coal feeder.

[0003] After the belt coal feeder works for a long time, the belt is prone to gradually loosen, resulting in insufficient tension during the conveying process, and thus prone to deviation.

[0004] However, belt deviation may cause mutual wear between the belt edge and the frame, damage the belt edge, and shorten the service life. When the deviation is serious, the belt will fall off the idler, causing major accidents. Therefore, special attention should be paid to the running state of the belt during the installation, adjustment, operation, and maintenance of the belt coal feeder to prevent accidents caused by belt deviation.

[0005] Currently, for the problem of belt deviation during the operation of the coal feeder belt, the prior art generally sets stop bars at the front and rear ends to block, but the stop bars can only play a blocking role and cannot change the deviation trend of the belt. The stop bars need to continuously act on the belt edge during this process. Although it can delay the wear of the belt, it cannot fundamentally solve this problem. Summary of the Invention

[0006] To overcome the above defects, embodiments of the present disclosure provide a belt deviation prevention device for a coal feeder, which solves the technical problem that the belt is prone to deviation on the surface of the conveying roller in the prior art.

[0007] According to one aspect, at least one embodiment of the present disclosure provides a device for preventing the deviation of the coal feeder belt, which is installed on a belt conveyor. The belt conveyor includes a frame, conveying rollers, and a belt. Two of the conveying rollers are rotatably arranged inside the frame. Support through slots are formed on two opposite side walls of the frame. A belt is drivingly arranged between the two conveying rollers. A first motor is fixedly arranged on the frame, and the output end of the first motor is fixedly connected to the adjacent conveying roller. The device further includes a support roller, a support block, a position adjusting mechanism, a limiting slot, and a relative moving mechanism. The support roller is rotatably arranged between the side walls of the two support through slots. A support column is fixedly arranged at the end of the support roller, and the support column penetrates through the bottom of the support through slot and extends out of the frame. The belt bypasses the support roller. A plurality of the support blocks are annularly arranged on the circumferential side of the support roller. The side wall of the support block away from the support roller is provided with an arc. The position adjusting mechanism is arranged between the support block and the support roller and is used for adjusting the distance between the support block and the support roller. Two of the limiting slots are formed on the side wall of the support block away from the support roller. Limiting blocks are slidably arranged in the limiting slots. The relative moving mechanism is arranged in the support block and is used for driving the two limiting blocks to move relatively.

[0008] Preferably, the position adjusting mechanism includes: An adjusting slot, which is formed on the side wall of the support roller close to the support block; Threaded tubes, and two of the threaded tubes are fixedly arranged on the support block; Threaded rods, and two of the threaded rods are rotatably arranged at the bottom of the adjusting slot. The threaded rods extend into the threaded tubes through threaded cooperation; A synchronous rotation mechanism, which is arranged on the support roller and is used for driving the plurality of threaded rods to rotate synchronously.

[0009] Furthermore, the synchronous rotation mechanism includes: A first cavity, and two of the first cavities are formed in the support roller. A first bevel gear is rotatably arranged on the side wall of the first cavity close to the threaded rod, and a first connecting rod is fixedly arranged between the first bevel gear and the threaded rod; A second bevel gear, which is rotatably arranged on the side wall of the first cavity. The second bevel gear meshes with the adjacent first bevel gear; A first driving mechanism, which is arranged on the support roller and is used for driving the two second bevel gears to rotate synchronously.

[0010] Still further, the first driving mechanism includes: The driving rod is fixedly arranged between the two second bevel gears, and one end of the driving rod penetrates through the supporting roller and the adjacent supporting column; The first handwheel is fixedly arranged on the driving rod, and the first handwheel is rotatably connected with the supporting column.

[0011] Furthermore, the relative movement mechanism includes: The bidirectional screw rod is rotatably arranged between the side walls on the mutually remote sides of the limiting grooves; Wherein, the bidirectional screw rod penetrates through the limiting block through threaded fit; The second cavity is opened in the limiting block; The first rotating mechanism is arranged in the second cavity and is used for driving the bidirectional screw rod to rotate.

[0012] On the basis of the above solution, the first rotating mechanism includes: The third bevel gear is rotatably arranged on the side wall of the second cavity, and the third bevel gear is fixedly connected with the bidirectional screw rod; The fourth bevel gear is rotatably arranged on the side wall of the second cavity, and the fourth bevel gear meshes with the third bevel gear; The driving grooves are formed in the side wall of the supporting roller in plurality; The driving prism is fixedly arranged on the fourth bevel gear, and the driving prism extends into the driving groove; The second driving mechanism is arranged on the supporting roller and is used for driving the driving prism to rotate.

[0013] On the basis of the above solution, the second driving mechanism includes: The third cavities are formed in the supporting roller in a ring shape in plurality, and the driving grooves communicate with the third cavities; The fifth bevel gear is rotatably arranged on the side wall of the third cavity, and the driving prism penetrates through the fifth bevel gear and is slidably connected with the fifth bevel gear; The sixth bevel gear is rotatably arranged on the side wall of the third cavity, and the sixth bevel gear meshes with the fifth bevel gear; The third driving mechanism is arranged on the supporting roller and is used for driving the plurality of sixth bevel gears to rotate synchronously.

[0014] On the basis of the above solution, the third driving mechanism includes: The fourth cavity is provided on one side of the plurality of third cavities. A plurality of first gears are rotatably arranged in the fourth cavity, and a second connecting rod is fixedly arranged between the first gear and the adjacent sixth bevel gear; The second gear is rotatably arranged in the fourth cavity and meshes with the first gear; The fourth driving mechanism is arranged on the supporting roller and is used to drive the second gear to rotate.

[0015] On the basis of the above scheme, the fourth driving mechanism includes: The driving column is fixedly arranged on the second gear and penetrates through the supporting roller and the adjacent supporting column; The second handwheel is fixedly arranged on the driving column and is rotatably connected to the adjacent supporting column.

[0016] On the basis of the above scheme, the side wall of the limiting block away from the supporting roller is arranged as an inclined surface.

[0017] The beneficial effects of the embodiments of the present disclosure are as follows: 1. In the present disclosure, through the arrangement of the position adjusting mechanism, the rotation of the first handwheel can drive the driving rod and the second bevel gear to rotate. At the same time, through the meshing of the second bevel gear and the first bevel gear, the first connecting rod and the threaded rod are driven to rotate. At the same time, through the threaded cooperation between the threaded rod and the threaded tube, the supporting block can be driven to move, so that the belt can be tightened by a plurality of supporting blocks, thereby avoiding the belt from running off on the conveying roller; 2. In the present disclosure, through the arrangement of the relative moving mechanism, it is convenient to control the driving prism and the fourth bevel gear to rotate through the work of the second driving mechanism. At the same time, through the meshing of the fourth bevel gear and the third bevel gear, the bidirectional screw is driven to rotate, so that the limiting block can be driven to move relatively through the threaded cooperation between the bidirectional screw and the limiting block, and then the belt can be limited by the limiting block, thereby further avoiding the belt from running off; 3. In the present disclosure, through the work of the second driving mechanism, the rotation of the second handwheel can drive the driving column and the second gear to rotate. At the same time, through the meshing of the second gear and the first gear, the first gear and the sixth bevel gear are driven to rotate, so that the fifth bevel gear can be driven to rotate through the meshing of the sixth bevel gear and the fifth bevel gear, and then it is convenient to drive the driving prism to rotate through the sliding fit relationship between the fifth bevel gear and the driving prism; 4. In the present disclosure, through the provision of the supporting roller, the supporting block, the position adjusting mechanism, the limiting groove and the relative moving mechanism, it is convenient to drive the supporting block to move by rotating the first handwheel, so that the belt can be tightened by multiple supporting blocks. At the same time, the belt can be limited by rotating the second handwheel to drive the limiting block, thereby solving the technical problem that the belt is prone to deviation on the surface of the conveying roller in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following will briefly introduce the drawings required for the description in the embodiments of the present disclosure. Obviously, the drawings in the following description are only some exemplary embodiments of the present disclosure. For those of ordinary skill in the art, other drawings can be obtained according to the content of the exemplary embodiments of the present disclosure and these drawings without creative efforts.

[0019] Figure 1 FIG. is a schematic structural diagram of a coal feeder belt anti-deviation device in an embodiment of the present disclosure; Figure 2 is Figure 1 a schematic cross-sectional structural diagram of a coal feeder belt anti-deviation device in an embodiment of Figure 3 is Figure 1 a schematic cross-sectional structural diagram of the supporting roller in an embodiment of Figure 4 is Figure 1 a schematic cross-sectional structural diagram of the position adjusting mechanism in an embodiment of Figure 5 is Figure 4 a partial enlarged structural diagram at position A in Figure 6 is Figure 1 a schematic cross-sectional structural diagram of the relative moving mechanism in an embodiment of Figure 7 is Figure 6 a partial enlarged structural diagram at position B in

[0020] In the figure: 1, belt conveyor; 2, frame; 3, conveying roller; 4, belt; 5, support through groove; 6, first motor; 7, support roller; 8, support column; 9, support block; 10, limiting groove; 11, limiting block; 12, adjusting groove; 13, threaded tube; 14, threaded rod; 15, first bevel gear; 16, second bevel gear; 17, driving rod; 18, first handwheel; 19, bidirectional screw; 20, third bevel gear; 21, fourth bevel gear; 22, driving groove; 23, driving prism; 24, fifth bevel gear; 25, sixth bevel gear; 26, first gear; 27, second gear; 28, second handwheel. DETAILED DESCRIPTION OF THE EMBODIMENTS The present disclosure will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present disclosure, rather than limiting the present disclosure.

[0021] To make the drawings concise, only the parts related to the disclosure are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, to make the drawings concise and easy to understand, for components with the same structure or function in some figures, only one of them is schematically shown, or only one of them is marked. In this article, "one" not only means "only this one", but also can mean "more than one" situation, and "several" includes "two" and "more than two".

[0022] In this article, it should be noted that unless otherwise clearly specified and limited, the terms "install", "connect", and "couple" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present disclosure can be understood according to specific situations.

[0023] In the present disclosure, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "over" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or only means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or only means that the horizontal height of the first feature is less than that of the second feature.

[0024] In the description of this embodiment, the orientation or positional relationship such as "up", "down", "left", "right", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of description and simplifying the operation, 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. Therefore, it should not be understood as a limitation to the present disclosure.

[0025] In addition, in the description of this application, the terms "first", "second", etc. are only used for distinguishing descriptions, and cannot be understood as indicating or implying relative importance.

[0026] Such as Figures 1-7As shown, it shows an anti-deviation device for the coal feeder belt in an embodiment of the present disclosure, which is installed on the belt conveyor 1. The belt conveyor 1 includes a frame 2, conveying rollers 3 and a belt 4. Two conveying rollers 3 are rotatably arranged in the frame 2. Support through grooves 5 are formed on two opposite side walls of the frame 2. A belt 4 is drivingly arranged between the two conveying rollers 3. A first motor 6 is fixedly arranged on the frame 2, and the output end of the first motor 6 is fixedly connected to the adjacent conveying roller 3. It further includes a support roller 7, a support block 9, a position adjustment mechanism, a limit groove 10 and a relative movement mechanism. The support roller 7 is rotatably arranged between the side walls of the two support through grooves 5. A support column 8 is fixedly arranged at the end of the support roller 7. The support column 8 penetrates through the bottom of the support through groove 5 and extends out of the frame 2. The belt 4 bypasses the support roller 7. A plurality of support blocks 9 are annularly arranged on the circumferential side of the support roller 7. The side wall of the support block 9 away from the support roller 7 is provided with an arc. The position adjustment mechanism is arranged between the support block 9 and the support roller 7 and is used to adjust the distance between the support block 9 and the support roller 7. Two limit grooves 10 are formed on the side wall of the support block 9 away from the support roller 7. Limit blocks 11 are slidably arranged in the limit grooves 10. The relative movement mechanism is arranged in the support block 9 and is used to drive the two limit blocks 11 to move relatively.

[0027] Referring to Figure 2 Figure 5, the position adjusting mechanism includes an adjusting groove 12, a threaded tube 13, a threaded rod 14 and a synchronous rotation mechanism. The adjusting groove 12 is formed in the side wall of the supporting roller 7 close to the supporting block 9. Two threaded tubes 13 are fixedly arranged on the supporting block 9. Two threaded rods 14 are rotatably arranged at the bottom of the adjusting groove 12. The threaded rods 14 extend into the threaded tubes 13 through threaded cooperation. The synchronous rotation mechanism is arranged on the supporting roller 7 and is used to drive the plurality of threaded rods 14 to rotate synchronously. The synchronous rotation mechanism includes a first cavity, a second bevel gear 16 and a first driving mechanism. Two first cavities are formed in the supporting roller 7. A first bevel gear 15 is rotatably arranged on the side wall of the first cavity close to the threaded rod 14. A first connecting rod is fixedly arranged between the first bevel gear 15 and the threaded rod 14. The second bevel gear 16 is rotatably arranged on the side wall of the first cavity. The second bevel gear 16 is meshed with the adjacent first bevel gear 15. The first driving mechanism is arranged on the supporting roller 7 and is used to drive the two second bevel gears 16 to rotate synchronously. The first driving mechanism includes a driving rod 17 and a first handwheel 18. The driving rod 17 is fixedly arranged between the two second bevel gears 16. One end of the driving rod 17 penetrates through the supporting roller 7 and the adjacent supporting column 8. The first handwheel 18 is fixedly arranged on the driving rod 17. The first handwheel 18 is rotatably connected with the supporting column 8. By rotating the first handwheel 18, the driving rod 17 and the second bevel gear 16 can be driven to rotate. At the same time, the first connecting rod and the threaded rod 14 are driven to rotate through the meshing of the second bevel gear 16 and the first bevel gear 15. At the same time, the supporting block 9 can be driven to move through the threaded cooperation between the threaded rod 14 and the threaded tube 13, so that the belt 4 can be tightened by a plurality of supporting blocks 9, thereby avoiding the deviation of the belt 4 on the conveying roller 3.

[0028] Refer to Figures 4-7, the relative movement mechanism includes a bidirectional screw 19, a second cavity, and a first rotation mechanism. The bidirectional screw 19 is rotatably arranged between the side walls on the mutually remote sides of the limit groove 10. Among them, the bidirectional screw 19 penetrates through the limit block 11 by means of thread fit. The second cavity is opened in the limit block 11. The first rotation mechanism is arranged in the second cavity and is used to drive the bidirectional screw 19 to rotate. The first rotation mechanism includes a third bevel gear 20, a fourth bevel gear 21, a driving groove 22, a driving prism 23, and a second driving mechanism. The third bevel gear 20 is rotatably arranged on the side wall of the second cavity. The third bevel gear 20 is fixedly connected to the bidirectional screw 19. The fourth bevel gear 21 is rotatably arranged on the side wall of the second cavity. The fourth bevel gear 21 meshes with the third bevel gear 20. A plurality of driving grooves 22 are opened on the side wall of the support roller 7. The driving prism 23 is fixedly arranged on the fourth bevel gear 21. The driving prism 23 extends into the driving groove 22. The second driving mechanism is arranged on the support roller 7 and is used to drive the driving prism 23 to rotate. By the operation of the second driving mechanism, the driving prism 23 and the fourth bevel gear 21 can be controlled to rotate. At the same time, the rotation of the bidirectional screw 19 is driven by the meshing of the fourth bevel gear 21 and the third bevel gear 20. Thus, the relative movement of the limit block 11 can be driven by the thread fit between the bidirectional screw 19 and the limit block 11. Furthermore, the belt 4 can be limited by the limit block 11, thereby further preventing the belt 4 from running off track.

[0029] Refer to Figures 4-7The second driving mechanism includes a third cavity, a fifth bevel gear 24, a sixth bevel gear 25, and a third driving mechanism. A plurality of third cavities are annularly formed on the support roller 7. The driving groove 22 communicates with the third cavity. The fifth bevel gear 24 is rotatably arranged on the side wall of the third cavity. The driving prism 23 penetrates through the fifth bevel gear 24 and is slidably connected with the fifth bevel gear 24. The sixth bevel gear 25 is rotatably arranged on the side wall of the third cavity. The sixth bevel gear 25 meshes with the fifth bevel gear 24. The third driving mechanism is arranged on the support roller 7 and is used for driving a plurality of sixth bevel gears 25 to rotate synchronously. The third driving mechanism includes a fourth cavity, a second gear 27, and a fourth driving mechanism. The fourth cavity is formed on one side of the plurality of third cavities. A plurality of first gears 26 are rotatably arranged in the fourth cavity. A second connecting rod is fixedly arranged between the first gear 26 and the adjacent sixth bevel gear 25. The second gear 27 is rotatably arranged in the fourth cavity. The second gear 27 meshes with the first gear 26. The fourth driving mechanism is arranged on the support roller 7 and is used for driving the second gear 27 to rotate. The fourth driving mechanism includes a driving column and a second handwheel 28. The driving column is fixedly arranged on the second gear 27. The driving column penetrates through the support roller 7 and the adjacent support column 8. The second handwheel 28 is fixedly arranged on the driving column. The second handwheel 28 is rotatably connected with the adjacent support column 8. The side wall of the limiting block 11 away from the support roller 7 is provided with an inclined surface. When the operator rotates the second handwheel 28, the driving column and the second gear 27 can be driven to rotate through the rotation of the second handwheel 28. At the same time, the first gear 26 and the sixth bevel gear 25 are driven to rotate through the meshing of the second gear 27 and the first gear 26. Thus, the fifth bevel gear 24 can be driven to rotate through the meshing of the sixth bevel gear 25 and the fifth bevel gear 24. Furthermore, it is convenient to drive the driving prism 23 to rotate through the sliding fit relationship between the fifth bevel gear 24 and the driving prism 23.

[0030] Working principle: When in use, the operator rotates the first handwheel 18. The rotation of the first handwheel 18 can drive the drive rod 17 and the second bevel gear 16 to rotate. At the same time, through the meshing of the second bevel gear 16 and the first bevel gear 15, the first connecting rod and the threaded rod 14 are driven to rotate. At the same time, through the threaded fit between the threaded rod 14 and the threaded tube 13, the support block 9 can be driven to move, so that the belt 4 can be tightened by multiple support blocks 9, thus avoiding the deviation of the belt 4 on the conveying roller 3. At the same time, the operator rotates the second handwheel 28, which can drive the drive column and the second gear 27 to rotate through the rotation of the second handwheel 28. At the same time, through the meshing of the second gear 27 and the first gear 26, the first gear 26 and the sixth bevel gear 25 are driven to rotate. Thus, the fifth bevel gear 24 can be driven to rotate through the meshing of the sixth bevel gear 25 and the fifth bevel gear 24. Furthermore, it is convenient to drive the drive prism 23 and the fourth bevel gear 21 to rotate through the sliding fit relationship between the fifth bevel gear 24 and the drive prism 23. At the same time, through the meshing of the fourth bevel gear 21 and the third bevel gear 20, the bidirectional screw 19 is driven to rotate. Thus, the limit block 11 can be driven to move relatively through the threaded fit between the bidirectional screw 19 and the limit block 11. Furthermore, the belt 4 can be limited by the limit block 11, thereby further avoiding the deviation of the belt 4. Compared with the method of blocking by a retaining rod in the prior art, in this embodiment, the belt 4 can be tightened by the movement of multiple support blocks 9, thus avoiding the position deviation of the loose belt 4 on the conveying roller 3. At the same time, after the belt 4 is tensioned, the belt 4 can be further limited by the movement of the limit block 11. Through the setting of the inclined surface on the limit block 11, the belt can be further corrected, and at the same time, the problem that the belt is sleeved on the limit block 11 due to the lack of timely adjustment of the tension is avoided.

[0031] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure and are not restrictive. Although the present disclosure has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present disclosure can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present disclosure, and they should all be covered within the scope of the claims of the present disclosure.

Claims

1. A coal feeder belt anti-deviation device, installed on a belt conveyor (1), the belt conveyor (1) comprising a frame (2), a conveying roller (3) and a belt (4), two conveying rollers (3) are rotatably arranged in the frame (2), two opposite side walls of the frame (2) are provided with supporting through grooves (5), a belt (4) is transmitted between the two conveying rollers (3), a first motor (6) is fixedly arranged on the frame (2), an output end of the first motor (6) is fixedly connected to the adjacent conveying roller (3), and the characteristics are as follows: Also includes: A support roller (7), the support roller (7) being rotatably arranged between the side walls of the two support grooves (5), a support column (8) being fixedly arranged at the end of the support roller (7), the support column (8) penetrating the bottom of the support groove (5) and extending out of the frame (2), and the belt (4) passing around the support roller (7); A support block (9), wherein a plurality of the support blocks (9) are arranged in a ring shape around the support roller (7), and a side wall of the support block (9) away from the support roller (7) is provided with an arc; a position adjustment mechanism, the position adjustment mechanism being arranged between the support block (9) and the support roller (7) and being used for adjusting the distance between the support block (9) and the support roller (7); Limiting grooves (10), wherein two limiting grooves (10) are provided on the side wall of the supporting block (9) away from the supporting roller (7), and limiting blocks (11) are slidably arranged in the limiting grooves (10); A relative movement mechanism, wherein the relative movement mechanism is arranged in the support block (9) and is used to drive the two limit blocks (11) to move relative to each other.

2. The device for preventing the coal feeder belt from running off the track according to claim 1, characterized in that: The position adjustment mechanism comprises: an adjustment groove (12), the adjustment groove (12) being formed on a side wall of the support roller (7) close to the support block (9); A threaded tube (13), two of the threaded tubes (13) being fixedly arranged on the support block (9); Threaded rods (14), two of the threaded rods (14) being rotatably disposed at the bottom of the adjusting groove (12), and the threaded rods (14) extending into the threaded tube (13) through threaded engagement; A synchronous rotation mechanism, wherein the synchronous rotation mechanism is arranged on the supporting roller (7) and is used to drive the plurality of threaded rods (14) to rotate synchronously.

3. The device for preventing the coal feeder belt from running off the track according to claim 2, characterized in that: The synchronous rotation mechanism comprises: a first cavity, wherein two first cavities are provided in the support roller (7), a first bevel gear (15) is rotatably provided on a side wall of the first cavity close to the threaded rod (14), and a first connecting rod is fixedly provided between the first bevel gear (15) and the threaded rod (14); a second bevel gear (16), the second bevel gear (16) being rotatably disposed on a side wall of the first cavity, the second bevel gear (16) being meshed with the adjacent first bevel gear (15); A first driving mechanism, wherein the first driving mechanism is arranged on the supporting roller (7) and is used to drive the two second bevel gears (16) to rotate synchronously.

4. The device for preventing the coal feeder belt from running off the track according to claim 3, characterized in that: The first driving mechanism comprises: A driving rod (17), the driving rod (17) being fixedly arranged between the two second bevel gears (16), one end of the driving rod (17) passing through the supporting roller (7) and the adjacent supporting column (8); A first hand wheel (18), wherein the first hand wheel (18) is fixedly disposed on the driving rod (17), and the first hand wheel (18) is rotatably connected to the supporting column (8).

5. The device for preventing the coal feeder belt from running off the track according to claim 4, characterized in that: The relative movement mechanism comprises: a bidirectional screw (19), the bidirectional screw (19) being rotatably disposed between side walls of the limiting groove (10) that are away from each other; Wherein, the bidirectional screw (19) penetrates the limit block (11) through threaded engagement; A second cavity, the second cavity being disposed in the limiting block (11); A first rotating mechanism, the first rotating mechanism is arranged in the second cavity and is used to drive the bidirectional screw (19) to rotate.

6. The device for preventing the coal feeder belt from running off the track according to claim 5, characterized in that: The first rotating mechanism comprises: a third bevel gear (20), the third bevel gear (20) being rotatably disposed on the side wall of the second cavity, the third bevel gear (20) being fixedly connected to the bidirectional screw (19); a fourth bevel gear (21), the fourth bevel gear (21) being rotatably disposed on a side wall of the second cavity, the fourth bevel gear (21) being meshed with the third bevel gear (20); A driving groove (22), wherein a plurality of the driving grooves (22) are formed on the side wall of the supporting roller (7); A driving prism (23), wherein the driving prism (23) is fixedly disposed on the fourth bevel gear (21), and the driving prism (23) extends into the driving groove (22); A second driving mechanism, the second driving mechanism is arranged on the supporting roller (7) and is used to drive the driving prism (23) to rotate.

7. The device for preventing the coal feeder belt from running off the track according to claim 6, characterized in that: The second driving mechanism comprises: A third cavity, wherein a plurality of the third cavities are provided in an annular shape on the support roller (7), and the drive groove (22) is in communication with the third cavity; a fifth bevel gear (24), the fifth bevel gear (24) being rotatably disposed on the side wall of the third cavity, the driving prism (23) penetrating the fifth bevel gear (24) and being slidably connected to the fifth bevel gear (24); a sixth bevel gear (25), the sixth bevel gear (25) being rotatably disposed on the side wall of the third cavity, the sixth bevel gear (25) being meshed with the fifth bevel gear (24); A third driving mechanism, the third driving mechanism being arranged on the supporting roller (7) and being used for driving the plurality of sixth bevel gears (25) to rotate synchronously.

8. The device for preventing the coal feeder belt from running off the track according to claim 7, characterized in that: The third driving mechanism comprises: a fourth cavity, the fourth cavity being opened on one side of the plurality of third cavities, a plurality of first gears (26) being rotatably arranged in the fourth cavity, a second connecting rod being fixedly arranged between the first gear (26) and the adjacent sixth bevel gear (25); a second gear (27), the second gear (27) being rotatably disposed in the fourth cavity, the second gear (27) being meshed with the first gear (26); A fourth driving mechanism, the fourth driving mechanism is arranged on the supporting roller (7) and is used to drive the second gear (27) to rotate.

9. The device for preventing the coal feeder belt from running off the track according to claim 8, characterized in that: The fourth driving mechanism comprises: A driving column, the driving column being fixedly arranged on the second gear (27), the driving column passing through the supporting roller (7) and the adjacent supporting column (8); A second hand wheel (28), the second hand wheel (28) is fixedly arranged on the driving column, and the second hand wheel (28) is rotatably connected to the adjacent supporting column (8).

10. The device for preventing the coal feeder belt from running off the track according to claim 9, characterized in that: The side wall of the limiting block (11) away from the supporting roller (7) is arranged as an inclined surface.

Images