Deviation prevention device and method for coal mine conveying belt

Abstract

The invention relates to the technical field of coal mine transportation, and particularly discloses an anti-deviation device and method for a coal mine transportation belt. An anti-deviation mechanism is jointly installed between the middles of the inner walls of the two sides of the conveying rack, a plurality of lifting mechanisms are installed at the top end of the conveying rack, and two cleaning mechanisms are arranged on the lower portion of the outer surface of the conveying rack. The deviation preventing mechanism comprises a forward and reverse screw rod, a driver, an adjusting plate, an adjusting rod, an adjusting frame and an upper tensioning roller, and the forward and reverse screw rod is installed between the inner walls of the two sides of the conveying rack through bearings; the driver drives the positive and negative lead screws to rotate, the two adjusting plates move outwards along with the positive and negative lead screws and drive the two adjusting rods to be straightened correspondingly, then the upper tensioning roller moves downwards, the tension of the coal conveying belt is increased, slipping and off tracking of the coal conveying belt can be effectively prevented through proper tension adjustment, the running stability of the belt is guaranteed, and the service life of the coal conveying belt is prolonged. And meanwhile, the service life of the coal conveying belt is prolonged.

Description

Technical Field

[0001] The present invention belongs to the technical field of coal mine transportation, and particularly relates to a device and method for preventing belt deviation of coal mine transportation belts. Background Art

[0002] During the process of coal mine excavation, transportation devices play a crucial role. They are responsible for efficiently and safely transporting the mined coal out of the mine. Among them, belt conveyors, that is, belt conveyors, have become the main force in coal mine transportation with their significant advantages. Belt conveyors stand out with their powerful conveying capacity, capable of carrying a large amount of coal for long-distance transportation, greatly improving the transportation efficiency. At the same time, their structural design is relatively simple, making maintenance work easy and efficient, reducing operating costs. More importantly, belt conveyors can easily achieve programmed control and automated operation, which not only further improves the accuracy and stability of transportation but also reduces the labor intensity of operators and enhances the overall safety of operations.

[0003] In the Chinese patent with the publication number CN213474405U, a belt conveyor for coal mine mining and transportation is mentioned. It is provided with a motor, a first gear, a second gear, a first rotating shaft, a rotating block, and a hopper. It can use the belt conveyor to discharge materials to the surroundings and in the middle. The motor drives the first gear to rotate, and the meshing transmission of the first gear and the second gear drives the hopper to rotate through the first rotating shaft, so that materials can be discharged in any direction around, avoiding the need for a forklift to cooperate with the belt conveyor for loading, saving time and effort, improving the loading efficiency, and increasing the practicality of the device;

[0004] However, during the long-term transportation of coal mines by this device, deviation faults often occur due to uneven tension distribution. This not only affects the smooth performance of the belt operation but also the long-term deviation operation will cause serious wear on the edges of the belt, and may even lead to sudden accidents such as belt tearing and scraping, thus significantly shortening its service life. Summary of the Invention

[0005] The purpose of the present invention is to provide a device and method for preventing belt deviation of coal mine transportation belts, which have the function of adjusting tension to prevent belt deviation, so as to solve the problem of shortened service life caused by belt deviation.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] A device for preventing belt deviation of coal mine transportation belts, comprising:

[0008] A conveying frame;

[0009] A deviation prevention mechanism is commonly installed between the middle parts of the inner walls on both sides of the conveyor frame. A plurality of lifting mechanisms are installed at the top of the conveyor frame. Two cleaning mechanisms are arranged at the lower part of the outer surface of the conveyor frame.

[0010] The deviation prevention mechanism includes a positive and negative lead screw, a driver, an adjusting plate, adjusting rods, an adjusting frame, and an upper tensioning roller. The positive and negative lead screw is installed between the inner walls on both sides of the conveyor frame through bearings. The driver is installed at one end of the positive and negative lead screw. There are two adjusting plates and two adjusting rods. The two adjusting plates are respectively installed on both sides of the outer surface of the positive and negative lead screw. The two adjusting rods are respectively installed at the bottom ends of the two adjusting plates through connecting seats. The adjusting frame is installed between the lower parts of the outer surfaces of the two adjusting rods through a connecting seat. The upper tensioning roller is installed between the upper parts of the inner walls on both sides of the adjusting frame through bearings.

[0011] Preferably, a driving roller is commonly installed between the inner walls on both sides of the conveyor frame through bearings. A motor is installed on one side of the outer wall of the conveyor frame. A driven roller is commonly installed between the inner walls on both sides of the conveyor frame through bearings. A coal conveying belt is commonly sleeved between the outer surface of the driven roller and the outer surface of the driving roller. Two guiding rollers are commonly installed between the middle parts of the inner walls on both sides of the conveyor frame through bearings. A controller is installed at the lower part of the outer wall of the conveyor frame.

[0012] Preferably, adjusting openings are respectively formed in the lower parts of the inner walls on both sides of the adjusting frame. Adjusting blocks are slidably installed in the two adjusting openings. A lower tensioning roller is commonly installed between the opposite surfaces of the two adjusting blocks through bearings. Electric push rods are installed at both sides of the bottom end of the adjusting frame. The output ends of the two electric push rods are respectively installed at the bottom ends of the two adjusting blocks.

[0013] Preferably, convex strips matching the inner wall sides of the adjusting openings are arranged at both ends of the adjusting block. The electric push rod, the driver, and the motor are all electrically connected to the controller. A limiting groove matching the fixing plate is formed in the middle of the top end of the adjusting plate.

[0014] Preferably, the lifting mechanism includes a fixing plate, an electric telescopic rod, an adjusting roller, a fixing rod, and a main supporting roller. The fixing plate is installed at the top of the conveyor frame. There are two electric telescopic rods and two adjusting rollers. The two electric telescopic rods are respectively installed at both sides of the top end of the fixing plate. The two adjusting rollers are respectively installed at the top ends of the two electric telescopic rods. The fixing rod is installed between the opposite surfaces of the two adjusting rollers. The main supporting roller is movably installed in the middle of the outer surface of the fixing rod.

[0015] Preferably, the adjusting idler includes an adjusting frame, side idlers, and a connecting frame. The side idlers are movably installed in the middle of the outer surface of the adjusting frame. There are two connecting frames, and the bottom end of the lower connecting frame is installed on the top end of the fixing plate. The two connecting frames are respectively installed on both sides of the outer surface of the adjusting frame through bearings.

[0016] Preferably, the adjusting frame is arranged in an I-shaped structure. The electric telescopic rod is electrically connected to the controller. The top surface of the main idler is higher than the top surface of the lower connecting frame.

[0017] Preferably, the cleaning mechanism includes a collection box, a dust suction pump, a dust suction pipe, a dust suction head, a cleaning brush, a dust collection pipe, a dust suction hood, and a cleaning scraper. The collection box is installed on the inner wall of the conveyor frame. The dust suction pump is installed on the top of the collection box. The dust suction pipe is installed on the top of the dust suction pump. The dust suction head and the dust collection pipe are respectively installed at the other two ends of the dust suction pipe. The cleaning brush is installed between the inner walls on both sides of the dust suction head. The dust suction hood is installed on the outer surface of the dust collection pipe. The cleaning scraper is installed between the inner walls on both sides of the dust suction hood.

[0018] Preferably, the dust suction pump is electrically connected to the controller. The bristles of the cleaning brush are in contact with the outer surface of the coal conveying belt. The outer surface of the cleaning scraper is in contact with the outer surface of the driven roller.

[0019] A method for preventing the deviation of a coal mine transportation belt includes the following steps:

[0020] Step 1: Convey coal mine: Control the motor to start through the controller, make the driving roller rotate and cooperate with the transmission of the driven roller, and then drive the coal conveying belt to rotate to realize the transportation of the coal mine. In this way, the coal mine can be transported from one place to another through this device.

[0021] Step 2: Adjust the tension: During the transportation of the coal mine, drive the positive and negative lead screws to rotate through the driver, make the adjusting rod straighten and push the adjusting frame downward, and then make the upper tensioning roller push the coal conveying belt downward, so as to adjust the tension of the coal conveying belt, prevent it from slipping and deviating, and ensure the smooth transportation process.

[0022] Step 3: Lift the belt: The main idler cooperates with two inclined side idlers to lift the coal conveying belt and the coal mine transported thereon together, so that the coal conveying belt sags downward during the transportation of the coal mine, ensuring the stable transportation of the coal mine. And the inclination angle of the side idlers can be adjusted by the telescopic movement of the electric telescopic rod, which helps to reduce the phenomenon of the coal conveying belt deviating.

[0023] Step 4: Clean the belt: The coal conveying belt can be cleaned by the cleaning brush, and the driven roller or the driving roller can be cleaned by the cleaning scraper. At the same time, start the dust suction pump to generate suction, and can suck the removed coal dust and other impurities to prevent dirt and impurities from affecting the normal operation of the device, and further reduce the possibility of the coal conveying belt deviating.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0025] (1) An anti-deviation mechanism is provided inside the conveying rack of the present invention. The forward and reverse screw rod is rotated by a driver, and the two adjusting plates move outward accordingly, and respectively drive the two adjusting rods to straighten, so that the upper tensioning roller moves downward, thereby increasing the tension of the coal conveying belt. Appropriate tension adjustment can effectively prevent the coal conveying belt from slipping and deviating, ensure the smooth operation of the belt, and at the same time extend the service life of the coal conveying belt.

[0026] (2) A lifting mechanism is provided at the top of the conveying rack of the present invention. By the main supporting roller rolling on the fixed rod and the side supporting roller rolling on the adjusting frame, the coal conveying belt can be lifted to achieve stable support. The main supporting roller is located between the two side supporting rollers to form a concave structure, which is beneficial to the stable conveying of coal by the coal conveying belt. And the electric telescopic rod can adjust the inclination angle of the side supporting roller flexibly according to the actual situation through telescopic operation, thereby effectively reducing the deviation phenomenon of the coal conveying belt.

[0027] (3) A cleaning mechanism is provided inside the conveying rack of the present invention. During the process of the coal conveying belt conveying coal, the cleaning brush contacts the coal conveying belt for cleaning work. At the same time, the cleaning scraper contacts the driven roller or the driving roller for cleaning operation. At this time, the dust suction pump is started to make the dust suction head and the dust suction cover generate suction, effectively sucking impurities such as coal dust generated during the cleaning process, thereby preventing the accumulation of dirt and impurities from causing the coal conveying belt to deviate and ensuring the normal operation of the coal conveying belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is one of the three-dimensional views of the present invention;

[0029] Figure 2 is the second three-dimensional view of the present invention;

[0030] Figure 3 is the three-dimensional view of the anti-deviation mechanism of the present invention;

[0031] Figure 4 is the three-dimensional view of the adjusting frame of the present invention;

[0032] Figure 5 is the three-dimensional view of the lifting mechanism of the present invention;

[0033] Figure 6 is the three-dimensional view of the adjusting supporting roller of the present invention;

[0034] Figure 7 is the three-dimensional view of the cleaning mechanism of the present invention;

[0035] Figure 8 is the present invention Figure 7 enlarged view of A in;

[0036] In the figure: 1, conveyor frame; 2, anti-deviation mechanism; 3, lifting mechanism; 4, cleaning mechanism; 5, driving roller; 6, motor; 7, driven roller; 8, coal conveying belt; 9, guiding roller; 10, controller;

[0037] 21, positive and negative lead screw; 22, driver; 23, adjusting plate; 24, adjusting rod; 25, adjusting frame; 26, upper tensioning roller; 27, adjusting port; 28, adjusting block; 29, lower tensioning roller; 210, electric push rod;

[0038] 31, fixing plate; 32, electric telescopic rod; 33, adjusting idler; 34, fixing rod; 35, main idler;

[0039] 331, adjusting frame; 332, side idler; 333, connecting frame;

[0040] 41, collection box; 42, dust suction pump; 43, dust suction pipe; 44, dust suction head; 45, cleaning brush; 46, dust collecting pipe; 47, dust suction hood; 48, cleaning scraper. Specific implementation mode

[0041] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0042] Embodiment 1:

[0043] Please refer to Figures 1 to 8 As shown in the figure, a coal mine transportation belt anti-deviation device includes:

[0044] Conveyor frame 1;

[0045] An anti-deviation mechanism 2 is commonly installed between the middle parts of the inner walls on both sides of the conveyor frame 1, a plurality of lifting mechanisms 3 are installed at the top of the conveyor frame 1, and two cleaning mechanisms 4 are arranged at the lower part of the outer surface of the conveyor frame 1;

[0046] The anti-deviation mechanism 2 includes a left-right screw rod 21, a driver 22, an adjustment plate 23, an adjustment rod 24, an adjustment frame 25 and an upper tension roller 26. The left-right screw rod 21 is installed between the inner walls on both sides of the conveyor frame 1 through bearings. The driver 22 is installed at one end of the left-right screw rod 21. There are two adjustment plates 23 and two adjustment rods 24. The two adjustment plates 23 are respectively installed on both sides of the outer surface of the left-right screw rod 21. The two adjustment rods 24 are respectively installed at the bottom ends of the two adjustment plates 23 through connecting seats. The adjustment frame 25 is installed between the lower parts of the outer surfaces of the two adjustment rods 24 through a connecting seat. The upper tension roller 26 is installed between the upper parts of the inner walls on both sides of the adjustment frame 25 through bearings.

[0047] As Figures 1 to 4 can be seen, a driving roller 5 is jointly installed between the inner walls on both sides of the conveyor frame 1 through bearings. A motor 6 is installed on one side of the outer wall of the conveyor frame 1. A driven roller 7 is jointly installed between the inner walls on both sides of the conveyor frame 1 through bearings. A coal conveying belt 8 is jointly sleeved and installed between the outer surface of the driven roller 7 and the outer surface of the driving roller 5. Two guide rollers 9 are jointly installed between the middle parts of the inner walls on both sides of the conveyor frame 1 through bearings. A controller 10 is installed at the lower part of the outer wall of the conveyor frame 1;

[0048] Adjustment openings 27 are respectively opened at the lower parts of the inner walls on both sides of the adjustment frame 25. Adjustment blocks 28 are respectively installed in the two adjustment openings 27 in a sliding manner. A lower tension roller 29 is jointly installed between the opposite surfaces of the two adjustment blocks 28 through bearings. Electric push rods 210 are respectively installed at both sides of the bottom end of the adjustment frame 25, and the output ends of the two electric push rods 210 are respectively installed at the bottom ends of the two adjustment blocks 28.

[0049] As described above, during use, the coal conveying belt 8 is located between the upper tension roller 26 and the lower tension roller 29. At this time, the controller 10 can be used to control the electric push rod 210 to start, so that the adjustment block 28 slides in the adjustment opening 27, and then drives the lower tension roller 29 to move upward stably, ensuring that both the upper tension roller 26 and the lower tension roller 29 are in contact with the coal conveying belt 8, and it can be applicable to coal conveying belts 8 of different thicknesses. When the tension of the coal conveying belt 8 needs to be adjusted, the controller 10 controls the driver 22 to start, drives the left-right screw rod 21 to rotate, and drives the two adjustment plates 23 on it to move outward. Through the sliding limit between the adjustment plate 23 and the fixed plate 31, the two adjustment plates 23 can move stably and respectively drive the two adjustment rods 24 to straighten, and then the adjustment frame 25 pushes the upper tension roller 26 to move downward, thereby increasing the tension of the coal conveying belt 8. By adjusting and maintaining the appropriate tension of the coal conveying belt 8, it is possible to effectively prevent it from slipping and deviating, ensure the smoothness of the coal conveying belt 8 during operation, and ensure the smoothness of the transportation process. At the same time, this also avoids serious wear on the edges of the coal conveying belt 8 caused by long-term deviation, and even sudden accidents such as belt tearing and scraping that may occur, thereby extending the service life of the coal conveying belt 8.

[0050] Specifically, referring to Figures 1 to 4 As shown, convex strips matching the inner walls on both sides of the adjustment opening 27 are provided at both ends of the adjustment block 28. The electric push rod 210, the driver 22, and the motor 6 are all electrically connected to the controller 10. A limiting groove matching the fixing plate 31 is provided in the middle of the top end of the adjustment plate 23.

[0051] As can be seen from the above, it is ensured that the adjustment block 28 can slide stably in the adjustment opening 27, and through the matching of the convex strips with the inner wall, the adjustment block 28 is prevented from shaking or shifting during the adjustment process. The controller 10 can conveniently control the startup, stop, and adjustment of these devices, improving the operation convenience and automation level, ensuring that the adjustment plate 23 can be stably docked with the fixing plate 31 during the adjustment process, and preventing the adjustment plate 23 from moving or being misaligned unnecessarily through the constraint of the limiting groove.

[0052] Embodiment 2:

[0053] Referring to Figure 5 and Figure 6 As shown, the lifting mechanism 3 includes a fixing plate 31, an electric telescopic rod 32, an adjustment roller 33, a fixing rod 34, and a main roller 35. The fixing plate 31 is installed at the top end of the conveyor frame 1. There are two electric telescopic rods 32 and two adjustment rollers 33. The two electric telescopic rods 32 are respectively installed on both sides of the top end of the fixing plate 31, and the two adjustment rollers 33 are respectively installed at the top ends of the two electric telescopic rods 32. The fixing rod 34 is installed between the opposite surfaces of the two adjustment rollers 33. The main roller 35 is movably installed in the middle of the outer surface of the fixing rod 34;

[0054] The adjustment roller 33 includes an adjustment frame 331, a side roller 332, and a connecting frame 333. The side roller 332 is movably installed in the middle of the outer surface of the adjustment frame 331. There are two connecting frames 333, and the bottom end of the lower connecting frame 333 is installed at the top end of the fixing plate 31. The two connecting frames 333 are respectively installed on both sides of the outer surface of the adjustment frame 331 through bearings.

[0055] As can be seen from the above, the main idler 35 contacts the coal conveying belt 8 and rolls on the fixed rod 34 to provide stable support for the coal conveying belt 8. At the same time, the side idler 332 also contacts the coal conveying belt 8 and rolls on the adjusting frame 331 to further stably support the coal conveying belt 8. They jointly lift the coal conveying belt 8 to achieve stable transmission of coal mines thereon. The main idler 35 is located between the two side idlers 332, forming a concave structure, which is conducive to the middle of the coal conveying belt 8 sinking downward and stably conveying coal mines. When the coal mines conveyed on the coal conveying belt 8 are overweight, the controller 10 controls the electric telescopic rod 32 to start. The electric telescopic rod 32 extends to push the upper connecting frame 333 upward, so as to flexibly adjust the inclination angle of the side idler 332 through telescopic operation. This adjustment can be carried out according to the actual situation, effectively reducing the deviation phenomenon of the coal conveying belt 8.

[0056] Preferably, referring to Figure 5 and Figure 6 As shown, the adjusting frame 331 is arranged in an I-shaped structure. The electric telescopic rod 32 is electrically connected to the controller 10. The top surface of the main idler 35 is higher than the top surface of the lower connecting frame 333.

[0057] As can be seen from the above, it is conducive to the installation and connection of the adjusting frame 331 and the two connecting frames 333, and also strengthens the firmness of the adjusting frame 331 itself, ensuring that the main idler 35 can stably support the coal conveying belt 8, and at the same time preventing the connecting frame 333 from interfering with the operation of the coal conveying belt 8.

[0058] Embodiment 3:

[0059] Referring to Figure 7 and Figure 8 As shown, the cleaning mechanism 4 includes a collection box 41, a dust suction pump 42, a dust suction pipe 43, a dust suction head 44, a cleaning brush 45, a dust collection pipe 46, a dust suction cover 47 and a cleaning scraper 48. The collection box 41 is installed on the inner wall of the conveying rack 1. The dust suction pump 42 is installed on the top of the collection box 41. The dust suction pipe 43 is installed on the top of the dust suction pump 42. The dust suction head 44 and the dust collection pipe 46 are respectively installed at the other two ends of the dust suction pipe 43. The cleaning brush 45 is installed between the inner walls on both sides of the dust suction head 44. The dust suction cover 47 is installed on the outer surface of the dust collection pipe 46. The cleaning scraper 48 is installed between the inner walls on both sides of the dust suction cover 47.

[0060] As can be seen from the above, during the process of the coal conveying belt 8 transporting coal mines, first, the cleaning brush 45 contacts the outer surface of the coal conveying belt 8 to clean the coal conveying belt 8. At the same time, the cleaning scrapers 48 in the two cleaning mechanisms 4 respectively contact the driven roller 5 and the driving roller 7 for cleaning operations, which can remove the impurities attached to their surfaces. Meanwhile, the controller 10 controls the dust suction pump 42 to start, and the dust suction head 44 and the dust suction hood 47 generate suction force to effectively suck impurities such as coal dust generated during the cleaning process. These impurities are then transported to the collection box 41 through the dust collection pipe 46 and the dust suction pipe 43 for centralized treatment. And through the effective cleaning of the coal conveying belt 8, the driven roller 5 and the driving roller 7, the deviation of the coal conveying belt 8 caused by the accumulation of dirt and impurities can be prevented, thereby ensuring the normal operation of the coal conveying belt 8.

[0061] Preferably, referring to Figure 7 and Figure 8 As shown, the dust suction pump 42 is electrically connected to the controller 10, the bristles of the cleaning brush 45 contact the outer surface of the coal conveying belt 8, and the outer surface of the cleaning scraper 48 contacts the outer surface of the driven roller 7.

[0062] As can be seen from the above, through the controller 10, its start and stop can be conveniently controlled to perform the dust suction operation. Through the frictional action of the bristles of the cleaning brush 45, the impurities and dirt on the outer surface of the coal conveying belt 8 are removed to keep the belt clean. By using the scraping action of the cleaning scraper 48, the impurities and dirt on the outer surface of the driven roller 7 are removed to keep the driven roller 7 clean, and the driving roller 5 can also be kept clean through the cleaning mechanism 4 on the other side.

[0063] Embodiment 4:

[0064] Referring to Figures 1 to 8 As shown, a method for preventing the deviation of a coal mine transportation belt includes the following steps:

[0065] Step 1, transporting coal mines: The controller 10 controls the motor 6 to start, so that the driving roller 5 rotates and cooperates with the transmission of the driven roller 7, thereby driving the coal conveying belt 8 to rotate to realize the transportation of coal mines. In this way, the coal mines can be transported from one place to another through this device;

[0066] Step 2, adjusting the tension: During the process of transporting coal mines, the driver 22 drives the positive and negative lead screw 21 to rotate, so that the adjusting rod 24 straightens and pushes the adjusting frame 25 downward, and then the upper tension roller 26 pushes the coal conveying belt 8 downward, which can adjust the tension of the coal conveying belt 8 to prevent it from slipping and deviating and ensure the smooth transportation process;

[0067] Step 3: Lift the conveyor belt: The main idler 35 and two inclined side idlers 332 cooperate to lift the coal conveyor belt 8 and the coal transported thereon together, causing the coal conveyor belt 8 to sag downward during coal transportation to ensure the stable transportation of coal. Moreover, the telescopic movement of the electric telescopic rod 32 can adjust the inclination angle of the side idler 332, which helps to reduce the phenomenon of the coal conveyor belt 8 running off track.

[0068] Step 4: Clean the conveyor belt: The cleaning brush 45 can clean the coal conveyor belt 8, and the cleaning scraper 48 can clean the driven roller 7 or the driving roller 5. Meanwhile, starting the dust suction pump 42 to generate suction can suck up the removed coal dust and other impurities, preventing dirt and impurities from affecting the normal operation of the device and further reducing the possibility of the coal conveyor belt 8 running off track.

[0069] Application example:

[0070] This design is mainly applied to the industrial environment of coal mine mining and transportation, especially in the transportation systems of underground coal mines and open-pit coal mines. In underground coal mines, due to limited space and complex environments, the conveyor belt system is often used to efficiently transport the mined coal from the working face to the ground. In open-pit coal mines, although the space is relatively open, an efficient transportation system is also required to ensure the smooth transportation of coal from the mining area to the processing or storage area. By setting the anti-deviation mechanism 2, this design can adjust and maintain the tension of the coal conveyor belt 8, ensuring that it remains in an appropriate taut state during transportation, thereby effectively preventing slipping or deviation caused by insufficient tension. Appropriate tension adjustment not only helps to reduce the wear and aging of the coal conveyor belt 8 but also significantly extends its service life. By setting the lifting mechanism 3, this design uses the concave lifting frame formed by the main idler 35 and two side idlers 332 to stably support the coal conveyor belt 8, ensuring that it maintains a stable running track during transportation. In addition, by adjusting the inclination angle of the side idler 332, the running direction of the coal conveyor belt 8 can be further fine-tuned, effectively reducing the deviation phenomenon, and thus reducing the risk of safety accidents caused by malfunctions of the coal conveyor belt 8. By setting the cleaning mechanism 4, this design can continuously clean the coal dust and impurities on the coal conveyor belt 8, the driving roller 5, and the driven roller 7, preventing these impurities from affecting the normal operation of the coal conveyor belt 8 and causing deviation. This design reduces the downtime caused by belt malfunctions, ensures the continuous and efficient transportation of coal, and thus significantly improves the production efficiency of coal mines.

[0071] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for preventing a coal mine conveyor belt from running off the track, characterized in that: include: Conveyor rack (1); An anti-deviation mechanism (2) is installed between the middle parts of the inner walls on both sides of the conveyor frame (1), a plurality of lifting mechanisms (3) are installed at the top of the conveyor frame (1), and two cleaning mechanisms (4) are arranged at the lower part of the outer surface of the conveyor frame (1); The anti-deviation mechanism (2) comprises a forward and reverse screw rod (21), a driver (22), an adjustment plate (23), an adjustment rod (24), an adjustment frame (25) and an upper tensioning roller (26); the forward and reverse screw rod (21) is mounted between the inner walls on both sides of the conveyor frame (1) via a bearing; the driver (22) is mounted on one end of the forward and reverse screw rod (21); two adjustment plates (23) and two adjustment rods (24) are each provided; the two adjustment plates (23) are respectively mounted on both sides of the outer surface of the forward and reverse screw rod (21); the two adjustment rods (24) are respectively mounted on the bottom ends of the two adjustment plates (23) via a connecting seat; the adjustment frame (25) is mounted between the lower parts of the outer surfaces of the two adjustment rods (24) via a connecting seat; and the upper tensioning roller (26) is mounted between the upper parts of the inner walls on both sides of the adjustment frame (25) via a bearing.

2. The device for preventing coal mine conveyor belt from running off the track according to claim 1, characterized in that: A driving roller (5) is installed between the inner walls of both sides of the conveyor frame (1) via bearings, a motor (6) is installed on one side of the outer wall of the conveyor frame (1), a driven roller (7) is installed between the inner walls of both sides of the conveyor frame (1) via bearings, a coal conveying belt (8) is installed between the outer surface of the driven roller (7) and the outer surface of the driving roller (5), two guide rollers (9) are installed between the middle parts of the inner walls of both sides of the conveyor frame (1) via bearings, and a controller (10) is installed at the lower part of the outer wall of the conveyor frame (1).

3. The device for preventing the coal mine conveyor belt from running off the track according to claim 2 is characterized in that: The lower parts of the inner walls on both sides of the adjustment frame (25) are provided with adjustment openings (27), and adjustment blocks (28) are slidably installed inside the two adjustment openings (27). A lower tensioning roller (29) is installed between the opposite surfaces of the two adjustment blocks (28) via a bearing. Electric push rods (210) are installed on both sides of the bottom end of the adjustment frame (25), and the output ends of the two electric push rods (210) are respectively installed at the bottom ends of the two adjustment blocks (28).

4. The device for preventing the coal mine conveyor belt from running off the track according to claim 3 is characterized in that: Both ends of the adjustment block (28) are provided with convex strips matching the inner walls of the adjustment opening (27) on both sides; the electric push rod (210), the driver (22) and the motor (6) are all electrically connected to the controller (10); and a limiting groove matching the fixing plate (31) is provided in the middle of the top end of the adjustment plate (23).

5. The device for preventing coal mine conveyor belt from running off the track according to claim 1, characterized in that: The lifting mechanism (3) comprises a fixed plate (31), an electric telescopic rod (32), an adjusting roller (33), a fixed rod (34) and a main roller (35); the fixed plate (31) is mounted on the top of the conveyor frame (1); two electric telescopic rods (32) and two adjusting rollers (33) are provided; the two electric telescopic rods (32) are respectively mounted on both sides of the top of the fixed plate (31); the two adjusting rollers (33) are respectively mounted on the tops of the two electric telescopic rods (32); the fixed rod (34) is mounted between the opposite surfaces of the two adjusting rollers (33); and the main roller (35) is movably mounted on the middle of the outer surface of the fixed rod (34).

6. The device for preventing the coal mine conveyor belt from running off the track according to claim 5, characterized in that: The adjusting roller (33) comprises an adjusting frame (331), a side roller (332) and a connecting frame (333); the side roller (332) is movably mounted on the middle part of the outer surface of the adjusting frame (331); two connecting frames (333) are provided, and the bottom end of the lower connecting frame (333) is mounted on the top end of the fixed plate (31); the two connecting frames (333) are respectively mounted on both sides of the outer surface of the adjusting frame (331) through bearings.

7. The device for preventing coal mine conveyor belt from running off the track according to claim 6, characterized in that: The adjustment frame (331) is configured as an I-shaped structure, the electric telescopic rod (32) is electrically connected to the controller (10), and the top end surface of the main roller (35) is higher than the top end surface of the lower connection frame (333).

8. The device for preventing coal mine conveyor belt from running off the track according to claim 1, characterized in that: The cleaning mechanism (4) comprises a collecting box (41), a dust suction pump (42), a dust suction pipe (43), a dust suction head (44), a cleaning brush (45), a dust collecting pipe (46), a dust suction cover (47) and a cleaning scraper (48); the collecting box (41) is mounted on the inner wall of the conveying frame (1); the dust suction pump (42) is mounted on the top of the collecting box (41); the dust suction pipe (43) is mounted on the top of the dust suction pump (42); the dust suction head (44) and the dust collecting pipe (46) are respectively mounted on the other two ends of the dust suction pipe (43); the cleaning brush (45) is mounted between the inner walls on both sides of the dust suction head (44); the dust suction cover (47) is mounted on the outer surface of the dust collecting pipe (46); and the cleaning scraper (48) is mounted between the inner walls on both sides of the dust suction cover (47).

9. The device for preventing coal mine conveyor belt from running off the track according to claim 8, characterized in that: The dust suction pump (42) is electrically connected to the controller (10), the bristles of the cleaning brush (45) are in contact with the outer surface of the coal conveyor belt (8), and the outer surface of the cleaning scraper (48) is in contact with the outer surface of the driven roller (7).

10. A method for preventing a coal mine conveyor belt from running off the track, applicable to a coal mine conveyor belt from running off the track as claimed in claims 1 to 9, characterized in that: The following steps are involved: Step 1: transporting coal: the controller (10) controls the motor (6) to start, so that the driving roller (5) rotates and cooperates with the transmission of the driven roller (7), thereby driving the coal conveying belt (8) to rotate, so as to transport the coal. In this way, the coal can be transported from one place to another through the device; Step 2, adjusting the tension: During the process of transporting the coal, the forward and reverse screw rods (21) are driven to rotate by the driver (22), so that the adjustment rod (24) is straightened to push the adjustment frame (25) downward, and then the upper tensioning roller (26) pushes the coal conveying belt (8) downward, so that the tension of the coal conveying belt (8) can be adjusted to prevent it from slipping and deviation, thereby ensuring a smooth transportation process; Step 3, lifting the belt: The main roller (35) cooperates with the two inclined side rollers (332) to lift the coal conveyor belt (8) and the coal transported thereon, so that the coal conveyor belt (8) is sunken downward when transporting the coal, thereby ensuring the stable transportation of the coal. The inclination angle of the side rollers (332) can be adjusted by telescoping the electric telescopic rod (32), which helps to reduce the deviation of the coal conveyor belt (8); Step 4, cleaning the belt: The coal conveyor belt (8) can be cleaned by a cleaning brush (45), and the driven roller (7) or the active roller (5) can be cleaned by a cleaning scraper (48). At the same time, the dust suction pump (42) is started to generate suction to absorb the cleaned coal dust and other impurities, thereby preventing dirt and impurities from affecting the normal operation of the device and further reducing the possibility of the coal conveyor belt (8) running off.

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