Anti-deviation structure of coal mine belt conveyor

Abstract

The utility model relates to the technical field of coal mine production, and provides a coal mine belt conveyor anti-deviation structure which comprises a mounting frame, a carrier roller is rotationally connected in one end of the mounting frame, two connecting shafts are rotationally connected in the other end of the mounting frame, driving rollers are fixedly connected to the peripheries of the connecting shafts, and two symmetrically-distributed connecting plates are fixedly connected to the top end of the mounting frame. A rotating shaft is rotationally connected between the connecting plates, driving discs are fixedly connected to the two ends of the rotating shaft, the driving discs are in transmission connection with the connecting shafts, and adjusting mechanisms are arranged on the driving discs. According to the belt deviation rectifying device, the two driving rollers can be arranged in a split mode, the two sets of adjustable driving mechanisms are arranged between the driving rollers, the two driving rollers can output at different speeds, transverse deviation rectifying force is formed on the belt through the friction force difference generated by the differential speed, and therefore the belt deviation rectifying function is achieved; the conveying belt is prevented from deviating towards the side with large stress, and potential safety hazards are reduced.

Description

Technical Field

[0001] This utility model relates to the field of coal mine production technology, and in particular to a structure for preventing belt conveyors from deviating from their designated path in coal mines. Background Technology

[0002] A coal mine belt conveyor, also known as a coal mine belt conveyor, is a continuous transportation device used in the processes of coal mining, production, transfer, and processing.

[0003] Coal mine belt conveyors mainly consist of conveyor belts, drive rollers, and idlers, offering advantages such as high transport efficiency, long distances, and strong adaptability. However, during operation, coal may accumulate to one side of the conveyor belt. When coal accumulates on one side, the force on that side of the conveyor belt increases, causing the belt to shift towards the side with greater force, thus posing a certain safety hazard. Utility Model Content

[0004] The purpose of this invention is to solve the problem in the prior art where coal may accumulate to one side of the conveyor belt during use. When coal accumulates on one side, the force on that side of the conveyor belt increases, causing the conveyor belt to shift to the side with greater force, thus posing a certain safety hazard.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a structure for preventing belt misalignment in coal mine conveyors, comprising a mounting frame, an idler roller rotatably connected to one end of the mounting frame, and two symmetrically distributed connecting shafts rotatably connected to the other end of the mounting frame. The two connecting shafts are rotatably connected to each other, and a drive roller is fixedly connected to the outer circumference of each connecting shaft. A conveyor belt is sleeved between the drive roller and the idler roller. Two symmetrically distributed connecting plates are fixedly connected to the top of the mounting frame, and a rotating shaft is rotatably connected between the connecting plates. A drive disc is fixedly connected to both ends of the rotating shaft, and the drive disc is connected to the connecting shaft via a transmission connection. An adjustment mechanism is provided on the drive disc.

[0006] In a preferred embodiment, the drive disc has a sliding guide groove, a connecting seat is slidably connected to the outside of the sliding guide groove, a connecting block is fixedly connected to the end of the connecting seat, a cam is fixedly connected to the outside of the connecting shaft, and a connecting handle is provided between the cam and the connecting block. The two ends of the connecting handle are rotatably connected to the cam and the connecting block, respectively. The rotation of the drive disc can drive the connecting handle to rotate eccentrically, thereby changing the trajectory of the end of the connecting handle in conjunction with the cam to drive the connecting shaft to rotate, thus realizing the transmission drive of the conveyor belt.

[0007] In a preferred embodiment, the adjustment mechanism includes an adjustment motor fixedly installed on the side of the drive disk away from the connecting handle. A threaded rod is fixedly connected to the output end of the adjustment motor, and a connecting block is fixedly connected to the top of the connecting seat. The connecting block is threadedly connected to the threaded rod. The output of the adjustment motor can drive the threaded rod to rotate. In conjunction with the connecting block, the connecting seat can be driven to move linearly along the sliding guide groove, thereby changing the distance between the connecting seat and the center of the drive disk, thus changing the rotation speed of the connecting shaft on the side connected to it.

[0008] In a preferred embodiment, a drive motor is fixedly mounted on the side of the mounting bracket, and a drive pulley is fixedly connected to the output end of the drive motor. A driven pulley is fixedly connected to the end of the rotating shaft near the drive pulley, and a transmission belt is sleeved between the driven pulley and the drive pulley. The rotation of the rotating shaft can be driven by the output of the drive motor in conjunction with the driven pulley, the drive pulley, and the transmission belt.

[0009] In a preferred embodiment, the outer surface of the drive roller is provided with a spiral groove with a spiral angle of 15°-30°. Rubber anti-slip strips are embedded in the groove to increase the contact friction between the roller and the conveyor belt, making the transmission of the conveyor belt smoother.

[0010] In a preferred embodiment, support seats are fixedly connected to the four corners of the lower end of the mounting bracket, which can support the device.

[0011] In a preferred embodiment, mounting holes are provided at the four corners of the lower end of the support base, which facilitates fixing the support base to the ground during use and makes the device easy to use.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. This utility model can be configured with two separate drive rollers, and two sets of adjustable drive mechanisms are provided between the drive rollers, so that the two drive rollers can output at different speeds. By utilizing the difference in friction generated by the speed difference, a lateral correction force is formed on the belt, thereby realizing the function of correcting the belt deviation, preventing the conveyor belt from deviating to the side with greater force, and reducing safety hazards.

[0014] 2. In this utility model, the outer surface of the drive roller is provided with a spiral groove with a spiral angle of 15°-30°. The groove is embedded with a rubber anti-slip strip to improve the contact friction between the roller and the conveyor belt, making the transmission of the conveyor belt smoother. Attached Figure Description

[0015] Figure 1 A three-dimensional structural diagram of a coal mine belt conveyor anti-deviation structure provided by this utility model;

[0016] Figure 2 A schematic diagram of the internal structure of a coal mine belt conveyor anti-deviation structure provided by this utility model;

[0017] Figure 3 A schematic diagram of the connecting seat structure of the anti-deviation structure for a coal mine belt conveyor provided by this utility model;

[0018] Figure 4 This utility model provides a structure for preventing belt misalignment in coal mine conveyors. Figure 2 Enlarged view of a section at point B in the middle;

[0019] Figure 5 This utility model provides a structure for preventing belt misalignment in coal mine conveyors. Figure 2 Enlarged view of a portion of point A in the middle.

[0020] Legend:

[0021] 1. Mounting bracket; 2. Connecting plate; 3. Rotating shaft; 4. Driven pulley; 5. Driving pulley; 6. Transmission belt; 7. Drive motor; 8. Connecting handle; 9. Cam; 10. Connecting shaft; 11. Drive roller; 12. Idler roller; 13. Drive disc; 14. Support base; 15. Mounting hole; 16. Adjusting motor; 17. Threaded rod; 18. Sliding guide groove; 19. Connecting seat; 20. Connecting block; 21. Connecting pin; 22. Conveyor belt. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-5This utility model provides a technical solution: a structure for preventing belt misalignment in coal mine conveyors, including a mounting frame 1. One end of the mounting frame 1 is rotatably connected to an idler roller 12, and the other end is rotatably connected to two symmetrically distributed connecting shafts 10. The two connecting shafts 10 are rotatably connected to each other. Drive rollers 11 are fixedly connected to the outer periphery of each connecting shaft 10. A conveyor belt 22 is sleeved between the drive rollers 11 and the idler roller 12. Two symmetrically distributed connecting plates 2 are fixedly connected to the top of the mounting frame 1. A rotating shaft 3 is rotatably connected between the connecting plates 2. Both ends of the rotating shaft 3 are fixedly connected to drive discs 13. The drive disc 13 is connected to the connecting shaft 10 and is equipped with an adjustment mechanism. The core reason for belt misalignment is the imbalance of force on both sides of the belt, which causes the belt to shift to the side with less force. This application can separate two drive rollers 11 and set two sets of adjustable drive mechanisms between the drive rollers 11, so that the two drive rollers 11 can output at different speeds. By using the friction difference generated by the speed difference, a lateral correction force is formed on the belt, thereby realizing the function of correcting the belt misalignment, preventing the conveyor belt from shifting to the side with greater force, and reducing safety hazards.

[0024] like Figure 1-5 As shown, a sliding guide groove 18 is provided inside the drive disk 13. A connecting seat 19 is slidably connected to the outside of the sliding guide groove 18. A connecting pin 21 is fixedly connected to the end of the connecting seat 19. A cam 9 is fixedly connected to the outside of the connecting shaft 10. A connecting handle 8 is provided between the cam 9 and the connecting pin 21. The two ends of the connecting handle 8 are rotatably connected to the cam 9 and the connecting pin 21, respectively. The rotation of the drive disk 13 can drive the connecting handle 8 to rotate eccentrically. Thus, the change in the trajectory of the end of the connecting handle 8, in conjunction with the cam 9, drives the connecting shaft 10 to rotate, thereby realizing the transmission drive of the conveyor belt 22.

[0025] like Figure 1-5 As shown, the adjustment mechanism includes an adjustment motor 16 fixedly installed on the side of the drive disk 13 away from the connecting handle 8. A threaded rod 17 is fixedly connected to the output end of the adjustment motor 16. The adjustment motor 16 is a common battery-driven type and is controlled by an external controller. A connecting block 20 is fixedly connected to the top of the connecting seat 19. The connecting block 20 is threadedly connected to the threaded rod 17. The output of the adjustment motor 16 can drive the threaded rod 17 to rotate. In conjunction with the connecting seat 19, the connecting seat 19 can be driven to move linearly along the sliding guide groove 18, thereby changing the distance between the connecting seat 19 and the center of the drive disk 13, thereby changing the rotation speed of the connecting shaft 10 on the side connected to it.

[0026] like Figure 1-5As shown, a drive motor 7 is fixedly installed on the side of the mounting bracket 1. A drive pulley 5 is fixedly connected to the output end of the drive motor 7. A driven pulley 4 is fixedly connected to the side end of the rotating shaft 3 near the drive pulley 5. A transmission belt 6 is sleeved between the driven pulley 4 and the drive pulley 5. The rotation drive of the rotating shaft 3 can be achieved by the output of the drive motor 7 in conjunction with the driven pulley 4, the drive pulley 5 and the transmission belt 6.

[0027] like Figure 1-5 As shown, the outer surface of the drive roller 11 is provided with a spiral groove with a spiral angle of 15°-30°. Rubber anti-slip strips are embedded in the groove to increase the contact friction between the roller and the conveyor belt 22, making the transmission of the conveyor belt 22 more stable.

[0028] like Figure 1-5 As shown, support seats 14 are fixedly connected to the four corners of the lower end of the mounting bracket 1, which can support the device.

[0029] like Figure 1-5 As shown, mounting holes 15 are provided at the four corners of the lower end of the support base 14, so that the support base 14 can be fixed on the ground during use, which facilitates the use of the device.

[0030] Working principle: During belt alignment, the adjusting motor 16 on the deviation side is activated. The output of the adjusting motor 16 drives the threaded rod 17 to rotate. In conjunction with the connecting seat 19, the connecting seat 19 can be driven to move linearly along the sliding guide groove 18, thereby changing the distance between the connecting seat 19 and the center of the drive disc 13. This changes the rotation speed of the connecting shaft 10 on the connected side, resulting in a speed difference between the two drive rollers 11. The frictional difference generated by the speed difference forms a lateral correction force on the belt, thereby achieving the function of belt alignment, preventing the conveyor belt from deviating to the side with greater force, and reducing safety hazards.

[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A structure for preventing belt misalignment in coal mine conveyors, characterized in that, The system includes a mounting frame (1), one end of which is rotatably connected to a roller (12), and the other end is rotatably connected to two symmetrically distributed connecting shafts (10). The two connecting shafts (10) are rotatably connected to each other. A drive roller (11) is fixedly connected to the outer periphery of each connecting shaft (10). A conveyor belt (22) is sleeved between the drive roller (11) and the roller (12). Two symmetrically distributed connecting plates (2) are fixedly connected to the top of the mounting frame (1). A rotating shaft (3) is rotatably connected between the connecting plates (2). A drive disc (13) is fixedly connected to both ends of the rotating shaft (3). The drive disc (13) is connected to the connecting shaft (10) through a transmission, and an adjustment mechanism is provided on the drive disc (13).

2. The anti-deviation structure for a coal mine belt conveyor according to claim 1, characterized in that: The drive disk (13) has a sliding guide groove (18) inside. A connecting seat (19) is slidably connected to the outside of the sliding guide groove (18). A connecting pin (21) is fixedly connected to the end of the connecting seat (19). A cam (9) is fixedly connected to the outside of the connecting shaft (10). A connecting handle (8) is provided between the cam (9) and the connecting pin (21). The two ends of the connecting handle (8) are rotatably connected to the cam (9) and the connecting pin (21) respectively.

3. The anti-deviation structure for a coal mine belt conveyor according to claim 2, characterized in that: The adjustment mechanism includes an adjustment motor (16) fixedly installed on the side of the drive disk (13) away from the connecting handle (8). The output end of the adjustment motor (16) is fixedly connected to a threaded rod (17). The top end of the connecting seat (19) is fixedly connected to a connecting block (20). The connecting block (20) is threadedly connected to the threaded rod (17).

4. The anti-deviation structure for a coal mine belt conveyor according to claim 1, characterized in that: A drive motor (7) is fixedly installed on the side of the mounting bracket (1). A drive pulley (5) is fixedly connected to the output end of the drive motor (7). A driven pulley (4) is fixedly connected to the side end of the rotating shaft (3) near the drive pulley (5). A transmission belt (6) is sleeved between the driven pulley (4) and the drive pulley (5).

5. The anti-deviation structure for a coal mine belt conveyor according to claim 1, characterized in that: The outer surface of the drive roller (11) is provided with a spiral groove with a spiral angle of 15°-30° and a rubber anti-slip strip is embedded in the groove.

6. The anti-deviation structure for a coal mine belt conveyor according to claim 1, characterized in that: The mounting bracket (1) is fixedly connected to the four corners at the lower end of each of the four corners.

7. The anti-deviation structure for a coal mine belt conveyor according to claim 6, characterized in that: Mounting holes (15) are provided at the four corners of the lower end of the support base (14).

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