Automatic deviation rectification device for belt conveyor

Abstract

The present invention belongs to the technical field of belt conveyors, and specifically relates to an automatic deviation correction device for a belt conveyor, which includes a base. Both sides of the lower end surface of the base are slidably connected with adjusting rods. The end of the adjusting rod is fixedly connected with a mounting plate, and a plurality of threaded mounting holes are provided on the mounting plate. The middle of the upper end of the base is rotatably provided with a bracket. The middle of the upper end surface of the bracket is rotatably provided with an intermediate roller. Both sides of the upper end of the bracket are rotatably provided with side rollers. Multichannel lubrication components for forming a lubricating film on the surface of the side rollers are provided on both sides of the bracket. By using the multichannel lubrication components, the present invention can quickly and evenly form a lubricating film on the surface of the side rollers before the side rollers correct the deviation of the conveyor belt, and then contact the conveyor belt, thereby reducing the friction between the side rollers and the conveyor belt, reducing the degree of wear, and being beneficial to improving the service life of the side rollers and the conveyor belt.

Description

Technical Field

[0001] The present invention belongs to the technical field of belt conveyors, and specifically relates to an automatic deviation correction device for belt conveyors. Background Art

[0002] A belt conveyor is a mechanical device that uses a continuously moving conveyor belt to convey materials. During the process of conveying materials, the conveyor belt often runs off track. When the conveyor belt runs off track, it not only affects the conveying efficiency but may also cause equipment damage, material spillage, and even safety accidents. Therefore, a deviation correction device is needed to timely correct the running position of the conveyor belt.

[0003] The patent with the publication number CN222497599U discloses a powerful automatic deviation correction device for belt conveyors, which includes a base. The middle part of the top of the base is rotatably provided with a roller bracket through a support column. A deviation correction component is provided on one side of the support column. An intermediate roller is provided on the top of the roller bracket. Fixed seats are provided on both sides of the top of the roller bracket. An installation seat is rotatably provided inside the fixed seat. A side roller is rotatably provided inside the installation seat. An adjustment component is provided inside the installation seat. Through the provided adjustment component, it is convenient to adaptively adjust the angles of the installation seat and the side roller, and it is convenient to use conveyor belts of different specifications and sizes as needed, improving the scope of use and the deviation correction effect of the conveyor belt. Through the provided deviation correction component, the support column can be rotated, and at the same time, the roller bracket can be rotated and adjusted. Cooperating with the intermediate roller and the side roller at the top of the roller bracket, it is convenient to perform powerful automatic deviation correction operations on the conveyor belt of the conveyor, and the use effect is good.

[0004] However, the above technical solution still has the following deficiencies in actual application:

[0005] Since the side roller needs to contact the conveyor belt when correcting the deviation of the conveyor belt, and the conveyor belt is in a running state, friction will be formed between the side roller and the conveyor belt. When the friction force is large, it will exacerbate the wear between the side roller and the conveyor belt, reducing its service life. When the wear is serious, the side roller or the conveyor belt needs to be replaced, which not only increases the maintenance cost but also affects the normal operation of the conveyor belt. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art and solve at least one technical problem proposed in the background art, the present invention provides an automatic deviation correction device for belt conveyors.

[0007] The technical solution adopted by the present invention to solve its technical problems is: an automatic deviation rectification device for a belt conveyor, including a base. Both sides of the lower end surface of the base are slidably connected with adjusting rods. The end of the adjusting rod is fixedly connected with a mounting plate. A plurality of threaded mounting holes are arranged on the mounting plate. The middle part of the upper end of the base is rotatably provided with a bracket. The middle part of the upper end surface of the bracket is rotatably provided with an intermediate roller. Both sides of the upper end of the bracket are rotatably provided with side rollers. Multichannel lubrication components for forming a lubricating film on the surface of the side rollers are arranged on both sides of the bracket;

[0008] The multichannel lubrication component includes a support plate slidably connected to the bracket. One end of the support plate is fixedly connected with a housing. A plurality of partition plates are uniformly fixedly connected to the inner wall of the housing around the circumference. A lubricating oil flow channel is formed between two adjacent partition plates. A merging ring is sleeved and fixedly connected to one side of the side roller. A plurality of through holes are uniformly arranged around the merging ring. A plurality of blocks are distributed radially along one side end face of the merging ring and are slidably connected. The block covers one side of the through hole. Oil storage tanks are fixedly connected to both sides of the bracket. One end of the oil storage tank is communicated with a pump body. The oil outlet end of the pump body is communicated with a hose. One end of the hose is communicated with an annular pipe. A plurality of oil outlets are uniformly arranged around the inner side of the annular pipe. The oil outlet penetrates through the housing and extends into the lubricating oil flow channel formed between two adjacent partition plates, and the oil outlet is fixedly connected with the housing.

[0009] Preferably, a first motor is fixedly connected to the middle part of the upper end of the base. The output end of the first motor is fixedly connected with the bracket.

[0010] Preferably, one end of the support plate is threadedly connected with a first threaded rod. Both ends of the first threaded rod are rotatably arranged on the bracket. Second motors are fixedly connected to both sides of the upper end of the bracket. The output end of the second motor is fixedly connected with one end of the first threaded rod.

[0011] Preferably, a plurality of displacement rods are inserted and slidably connected to one side of the housing. One end of the displacement rod is fixedly connected with a scraper. Both sides of the scraper are attached to the partition plate, and one side of the scraper is flush with the surface of the side roller.

[0012] Preferably, one end of the displacement rod is fixedly connected with a connecting ring. One side of the connecting ring is threadedly connected with a second threaded rod. One end of the second threaded rod is rotatably arranged on the housing. A third motor is fixedly connected to one side of the housing. The output end of the third motor is fixedly connected with one end of the second threaded rod.

[0013] Preferably, a connecting rod is rotatably arranged on one side of the block. One end of the connecting rod is rotatably arranged with an adjusting ring.

[0014] Preferably, a cylinder is fixedly connected to one side of the merging ring. The piston end of the cylinder is fixedly connected with one side of the adjusting ring.

[0015] Preferably, an electric heating sheet is arranged in the inner cavity of the scraper, and the scraper is made of heat-conducting material.

[0016] Preferably, a worm gear and a gear are rotatably arranged in the middle of the base, and a worm is rotatably arranged on one side of the base. The worm is meshed with the worm gear.

[0017] Preferably, a plurality of tooth blocks are arranged on the adjusting rod, and the gear is meshed with the tooth blocks on the adjusting rod.

[0018] The beneficial effects of the present invention are as follows:

[0019] 1. For the automatic deviation rectification device for a belt conveyor of the present invention, when the position sensor detects that the conveyor belt is running off track, the first motor drives the bracket to rotate by an appropriate angle, so that the side roller contacts the conveyor belt and rectifies it, thereby realizing the automatic deviation rectification of the conveyor belt and ensuring the normal operation of the conveyor belt.

[0020] 2. For the automatic deviation rectification device for a belt conveyor of the present invention, by using the multi-channel lubrication component, a lubricating film can be quickly and evenly formed on the surface of the side roller before the side roller rectifies the conveyor belt, and then contacts the conveyor belt, thereby reducing the friction between the side roller and the conveyor belt, reducing the wear degree, being beneficial to improving the service life of the side roller and the conveyor belt. At the same time, the maintenance cost is reduced, and the normal operation of the conveyor belt is ensured. Moreover, after the side roller completes one deviation rectification work, the materials adhered to the surface of the side roller can be removed, avoiding the situation that the formation effect of the subsequent lubricating film on the surface of the side roller is affected due to the adhesion of materials on the surface of the side roller. At the same time, it also avoids the situation that the materials adhered to the side roller fall onto the conveyor belt again and are mixed with other types of materials.

[0021] 3. For the automatic deviation rectification device for a belt conveyor of the present invention, according to the span size of the belt conveyor frame, the worm is rotated to drive the worm gear and the gear to rotate, so that the two sides of the adjusting rod slide simultaneously and in different directions, and the distance between the two mounting plates is adjusted, thereby realizing adjustable installation and improving the applicable range. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below with reference to the accompanying drawings.

[0023] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0024] Figure 2 is a three-dimensional structural schematic diagram at the side roller;

[0025] Figure 3 is a three-dimensional structural schematic diagram at the side roller from another perspective;

[0026] Figure 4 is a three-dimensional structural schematic diagram at the housing;

[0027] Figure 5 is Figure 4 The partial enlarged view at position A in

[0028] Figure 6 is the three-dimensional structure schematic diagram of another perspective at the housing

[0029] Figure 7 is the three-dimensional structure schematic diagram at the merging ring

[0030] Figure 8 is Figure 7 The partial enlarged view at position B in

[0031] Figure 9 is the three-dimensional structure schematic diagram at the through hole

[0032] Figure 10 is the three-dimensional structure schematic diagram at the base

[0033] Figure 11 is Figure 10 The partial enlarged view at position C in

[0034] In the figure: 1. Bracket; 2. Base; 3. Intermediate roller; 4. Side roller; 5. Oil storage tank; 6. Adjusting rod; 7. Mounting plate; 8. Motor 1; 9. Merging ring; 10. Support plate; 11. Motor 2; 12. Hose; 13. Pump body; 14. First threaded rod; 15. Housing; 16. Ring-shaped pipe; 17. Connecting ring; 18. Adjusting ring; 19. Through hole; 20. Motor 3; 21. Second threaded rod; 22. Displacement rod; 23. Scraper; 24. Oil outlet; 25. Partition; 26. Electric heating sheet; 27. Gear; 28. Cylinder; 29. Connecting rod; 30. Stopper; 31. Worm gear; 32. Worm. Specific embodiments

[0035] Next, the technical solution of the present invention will be clearly and completely described in conjunction with the accompanying drawings. 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 scope of protection of the present invention.

[0036] Please refer to Figures 1-11 , the present invention provides a technical solution: an automatic deviation correction device for a belt conveyor, including a base 2, both sides of the lower end face of the base 2 are slidably connected with adjusting rods 6, the ends of the adjusting rods 6 are fixedly connected with mounting plates 7, a plurality of threaded mounting holes are provided on the mounting plates 7, a bracket 1 is rotatably arranged in the middle of the upper end of the base 2, an intermediate roller 3 is rotatably arranged in the middle of the upper end face of the bracket 1, side rollers 4 are rotatably arranged on both sides of the upper end of the bracket 1, and multi-channel lubrication components for forming a lubricating film on the surface of the side rollers 4 are arranged on both sides of the bracket 1;

[0037] The multi-channel lubrication assembly includes a support plate 10 slidably connected to a bracket 1. One end of the support plate 10 is fixedly connected to a housing 15. A plurality of partition plates 25 are evenly and fixedly connected to the inner wall of the housing 15 in a circle. A lubricating oil flow channel is formed between two adjacent partition plates 25. A merging ring 9 is sleeved and fixedly connected to one side of the side roller 4. A plurality of through holes 19 are evenly arranged in a circle on the merging ring 9. A plurality of stoppers 30 are distributed radially and slidably connected to one side end face of the merging ring 9. The stoppers 30 cover one side of the through holes 19. Storage tanks 5 are fixedly connected to both sides of the bracket 1. One end of the storage tank 5 is communicated with a pump body 13. The oil outlet end of the pump body 13 is communicated with a hose 12. One end of the hose 12 is communicated with an annular pipe 16. A plurality of oil outlets 24 are evenly arranged in a circle on the inner side of the annular pipe 16. The oil outlets 24 penetrate through the housing 15 and extend into the lubricating oil flow channel formed between two adjacent partition plates 25, and the oil outlets 24 are fixedly connected to the housing 15.

[0038] In this embodiment, as Figure 1 and Figure 10 shown, a first motor 8 is fixedly connected to the middle of the upper end of the base 2, and the output end of the first motor 8 is fixedly connected to the bracket 1.

[0039] Specifically, the mounting plate 7 is mounted on the bottom of the conveyor by bolts, and the middle roller 3 contacts the bottom of the conveyor belt. The middle roller 3 is used to provide a supporting effect on the bottom of the conveyor belt. The side rollers 4 are located on both sides of the conveyor belt. When the conveyor belt does not deviate, the side rollers 4 do not contact the conveyor belt. Then, two position sensors are arranged on both sides of the conveyor belt. The position sensor is a technology existing for detecting whether the conveyor belt deviates, and will not be elaborated here. The position sensor is flush with the conveyor belt. The position sensor controls the first motor 8 to work through a controller. When the position sensor detects that the conveyor belt deviates, the first motor 8 drives the bracket 1 to rotate by an appropriate angle, so that the side rollers 4 contact the conveyor belt and correct its deviation, thereby realizing the automatic deviation correction of the conveyor belt and ensuring the normal operation of the conveyor belt.

[0040] In this embodiment, as Figures 2-9 shown, a first threaded rod 14 is threadedly connected to one end of the support plate 10. Both ends of the first threaded rod 14 are rotatably arranged on the bracket 1. Second motors 11 are fixedly connected to both sides of the upper end of the bracket 1, and the output ends of the second motors 11 are fixedly connected to one end of the first threaded rod 14.

[0041] A plurality of displacement rods 22 are inserted and slidably connected to one side of the housing 15. One end of the displacement rod 22 is fixedly connected to a scraper 23. Both sides of the scraper 23 are attached to the partition plates 25, and one side of the scraper 23 is flush with the surface of the side roller 4.

[0042] One end of the displacement rod 22 is fixedly connected with a connecting ring 17. One side of the connecting ring 17 is threadedly connected with a second threaded rod 21. One end of the second threaded rod 21 is rotatably arranged on the housing 15. One side of the housing 15 is fixedly connected with a third motor 20. The output end of the third motor 20 is fixedly connected with one end of the second threaded rod 21.

[0043] One side of the stopper 30 is rotatably provided with a connecting rod 29. One end of the connecting rod 29 is rotatably provided with an adjusting ring 18.

[0044] One side of the merging ring 9 is fixedly connected with a cylinder 28. The piston end of the cylinder 28 is fixedly connected with one side of the adjusting ring 18.

[0045] An electric heating sheet 26 is arranged in the inner cavity of the scraper 23, and the scraper 23 is made of a heat-conducting material.

[0046] Specifically, when the existing deviation correction device is in use, when it detects that the conveyor belt is running off track, the side roller 4 will rotate and contact the conveyor belt, so as to realize the deviation correction of the conveyor belt. However, since the side roller 4 needs to contact the conveyor belt when correcting the deviation of the conveyor belt, and the conveyor belt is in a running state, the side roller 4 will form friction with the conveyor belt. When the friction force is large, it will aggravate the wear degree of the side roller 4 and the conveyor belt, reduce its service life, and when the wear is serious, it is necessary to replace the side roller 4 or the conveyor belt, which not only increases the maintenance cost but also affects the normal operation of the conveyor belt;

[0047] Therefore, to solve the above problems, during the use of this embodiment, when the side roller 4 corrects the deviation of the conveyor belt, the side roller 4 always contacts the conveyor belt with its fixed area. For the convenience of subsequent description, this fixed area is called the deviation correction area; when the conveyor belt is not deviated, one end face of the housing 15 fits with one end face of the merging ring 9, and the deviation correction area of the side roller 4 is covered by the housing 15 and is in the closed cavity formed by the housing 15 and the merging ring 9, and the partition plate 25 fits with the surface of the side roller 4. When the conveyor belt is deviated, the pump body 13 pumps out the lubricating oil in the oil storage tank 5, and after passing through the hose 12 and the annular pipe 16, it sprays out from the oil outlet 24. The lubricating oil sprayed out from each oil outlet 24 will only be in the corresponding lubricating oil flow channel, so as to effectively control the flow range of the lubricating oil, make the lubricating oil evenly distributed on the surface of the side roller 4, and avoid the uneven distribution of the lubricating oil on the side roller 4. At the same time, since the inner cavity of the scraper 23 is provided with an electric heating sheet 26, the electric heating sheet 26 is energized and heated to raise the temperature of the inner cavity of the housing 15, so that the lubricating oil is heated. Heating will reduce the viscosity of the lubricating oil, and the lubricating oil can spread on the surface of the side roller 4 faster, which helps to form a more uniform and complete lubricating film on the surface of the side roller 4. After the lubricating film is quickly formed on the surface of the side roller 4, the second motor 11 drives the first threaded rod 14 to rotate, so that the support plate 10 slides on the bracket 1, and the deviation correction area of the side roller 4 is exposed. At this time, when the side roller 4 contacts the conveyor belt again for deviation correction, the friction between the side roller 4 and the conveyor belt will be greatly reduced, thereby reducing the wear degree of the side roller 4 and the conveyor belt, being beneficial to improving the service life of the side roller 4 and the conveyor belt, reducing the maintenance cost at the same time, and ensuring the normal operation of the conveyor belt;

[0048] Although the friction force when the side roller 4 contacts the conveyor belt is reduced through the above method, in some cases, the conveyor belt will convey some materials with strong adhesion. When the side roller 4 contacts the conveyor belt, some materials will inevitably adhere to the surface of the side roller 4, which not only affects the formation of the subsequent lubricating film on the surface of the side roller 4, but also there will be a situation where the materials adhered to the side roller 4 fall back onto the conveyor belt again and mix with other types of materials, thus affecting the quality of the materials. Therefore, to solve this problem, after the side roller 4 completes a deviation correction operation and resets, the housing 15 is driven to contact the merging ring 9 again, so that the deviation correction area of the side roller 4 is covered again. At the same time, the motor three 20 drives the threaded rod two 21 to rotate, so that the connecting ring 17 drives multiple displacement rods 22 to move simultaneously, causing the scraper 23 to form friction with the surface of the side roller 4, scraping off the materials adhered to the surface of the side roller 4. At the same time, the electric heating sheet 26 can also increase the temperature inside the housing 15. After the adhered materials are heated, it is easier to separate from the surface of the side roller 4, and the scraped-off materials will slide onto the surface of the merging ring 9. Then, the cylinder 28 drives the adjusting ring 18 to move, causing multiple connecting rods 29 to rotate simultaneously and drive the stopper 30 to move, so that the stopper 30 no longer covers the through hole 19, and the scraped-off materials are discharged from the through hole 19. When the stopper 30 covers the through hole 19, it is beneficial to concentrate the heat and the heating effect on the inside of the housing 15 is good. Thus, the removal of the materials adhered to the surface of the side roller 4 is realized, avoiding the situation that the formation effect of the subsequent lubricating film on the surface of the side roller 4 is affected due to the adhesion of materials on the surface of the side roller 4. At the same time, it also avoids the situation that the materials adhered to the side roller 4 fall back onto the conveyor belt again and mix with other types of materials.

[0049] In this embodiment, as Figure 11 shown, a worm gear 31 and a gear 27 are rotatably provided in the middle of the base 2, and a worm 32 is rotatably provided on one side of the base 2. The worm 32 meshes with the worm gear 31.

[0050] A plurality of tooth blocks are provided on the adjusting rod 6, and the gear 27 meshes with the tooth blocks on the adjusting rod 6.

[0051] Specifically, according to the span size of the belt conveyor frame, the worm 32 is rotated to drive the worm gear 31 and the gear 27 to rotate, so that the two side adjusting rods 6 slide simultaneously and in different directions, adjusting the distance between the two mounting plates 7, thereby realizing adjustable installation and improving the scope of application.

[0052] Working principle: According to the span size of the belt conveyor frame, rotate the worm 32 to drive the worm wheel 31 and the gear 27 to rotate, so that the adjusting rods 6 on both sides slide simultaneously and in different directions, adjusting the distance between the two mounting plates 7, thereby realizing adjustable installation, improving the applicable range. The mounting plate 7 is installed on the bottom of the conveyor by bolts, and the middle roller 3 contacts the bottom of the conveyor belt. The middle roller 3 is used to provide a supporting effect on the bottom of the conveyor belt. The side rollers 4 are located on both sides of the conveyor belt. When the conveyor belt does not deviate, the side rollers 4 do not contact the conveyor belt. Then, two position sensors are set on both sides of the conveyor belt. The position sensor is an existing technology for detecting whether the conveyor belt deviates, and will not be elaborated here. Make the position sensor flush with the conveyor belt. The position sensor controls the motor 8 to work through the controller. When the position sensor detects that the conveyor belt deviates, the motor 8 drives the bracket 1 to rotate at an appropriate angle, so that the side roller 4 contacts the conveyor belt and corrects its deviation, thereby realizing automatic deviation correction of the conveyor belt and ensuring the normal operation of the conveyor belt. When the conveyor belt does not deviate, one end face of the housing 15 is attached to one end face of the merging ring 9, and the deviation correction area of the side roller 4 is covered by the housing 15 and is in the closed cavity formed by the housing 15 and the merging ring 9, and the partition plate 25 is attached to the surface of the side roller 4. When the conveyor belt deviates, the pump body 13 pumps out the lubricating oil in the oil storage tank 5, and after passing through the hose 12 and the annular pipe 16, it is sprayed out from the oil outlet 24. The lubricating oil sprayed out from each oil outlet 24 will only be in the corresponding lubricating oil flow channel, so as to effectively control the flow range of the lubricating oil, so that the lubricating oil can be evenly distributed on the surface of the side roller 4, avoiding the uneven distribution of the lubricating oil on the side roller 4. At the same time, since the inner cavity of the scraper 23 is provided with an electric heating sheet 26, the electric heating sheet 26 is energized and heated to raise the temperature of the inner cavity of the housing 15, so that the lubricating oil is heated. Heating will reduce the viscosity of the lubricating oil, and the lubricating oil can spread on the surface of the side roller 4 faster, which helps to form a more uniform and complete lubricating film on the surface of the side roller 4. After the lubricating film is quickly formed on the surface of the side roller 4, the motor 11 drives the first threaded rod 14 to rotate, so that the support plate 10 slides on the bracket 1, and the deviation correction area of the side roller 4 is exposed. At this time, when the side roller 4 contacts the conveyor belt again for deviation correction, the friction between the side roller 4 and the conveyor belt will be greatly reduced, thereby reducing the wear degree of the side roller 4 and the conveyor belt, which is beneficial to improving the service life of the side roller 4 and the conveyor belt. At the same time, the maintenance cost is reduced and the normal operation of the conveyor belt is ensured;Although the friction between the side roller 4 and the conveyor belt is reduced by the above method, in some cases, the conveyor belt will transport some materials with strong adhesion. When the side roller 4 contacts the conveyor belt, it is inevitable that some materials will adhere to the surface of the side roller 4, which will not only affect the subsequent formation of the lubricating film on the surface of the side roller 4, but also cause the materials adhered to the side roller 4 to fall onto the conveyor belt again and mix with other types of materials, thereby affecting the quality of the materials. Therefore, in order to solve this problem, after the side roller 4 completes a deviation correction work and resets, the shell 15 is driven to contact the merging ring 9 again, so that the deviation correction area of ​​the side roller 4 is covered again, and at the same time, the motor 3 20 is used to drive the threaded rod 21 to rotate, so that the connecting ring 17 drives multiple displacement rods 22 to move simultaneously, so that the scraper 23 forms friction with the surface of the side roller 4, and the surface of the side roller 4 is The adhered materials are scraped off. At the same time, the electric heating plate 26 can also heat up the inner cavity of the shell 15. After the adhered materials are heated, they are easier to detach from the surface of the side roller 4, and the scraped materials will slide to the surface of the merging ring 9. Then, the cylinder 28 is used to drive the adjustment ring 18 to move, so that the multiple connecting rods 29 rotate at the same time and drive the block 30 to move, so that the block 30 no longer covers the through hole 19, and the scraped materials are discharged from the through hole 19. When the block 30 covers the through hole 19, it is conducive to the concentration of heat, and the heating effect of the inner cavity of the shell 15 is good; thereby, the materials adhered to the surface of the side roller 4 are removed, and the situation that the materials adhere to the surface of the side roller 4 affect the subsequent formation of the lubricating film on the surface of the side roller 4 is avoided. At the same time, it is also avoided that the materials adhered to the side roller 4 fall onto the conveyor belt again and mix with other types of materials. ;

[0053] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An automatic deviation rectifying device for a belt conveyor, comprising a base (2), characterized in that: Both sides of the lower end surface of the base (2) are slidably connected with adjusting rods (6). The end of each adjusting rod (6) is fixedly connected with a mounting plate (7). A plurality of threaded mounting holes are provided on the mounting plate (7). In the middle of the upper end of the base (2), a bracket (1) is rotatably arranged. In the middle of the upper end surface of the bracket (1), an intermediate roller (3) is rotatably arranged. On both sides of the upper end of the bracket (1), side rollers (4) are rotatably arranged. On both sides of the bracket (1), a multi-channel lubrication assembly is provided for forming a lubricating film on the surface of the side rollers (4). The multi-channel lubrication assembly includes a support plate (10) slidably connected to the bracket (1). One end of the support plate (10) is fixedly connected with a housing (15). A plurality of partition plates (25) are evenly and fixedly connected to the inner wall of the housing (15) in a circle. A lubricating oil flow channel is formed between two adjacent partition plates (25). A merging ring (9) is sleeved and fixedly connected to one side of the side roller (4). A plurality of through holes (19) are evenly arranged on the merging ring (9) in a circle. On one side end face of the merging ring (9), a plurality of stoppers (30) are distributed along the radial direction and slidably connected. The stoppers (30) can cover one side of the through holes (19). On both sides of the bracket (1), oil storage tanks (5) are fixedly connected. One end of the oil storage tank (5) is communicated with a pump body (13). The oil outlet end of the pump body (13) is communicated with a hose (12). One end of the hose (12) is communicated with an annular pipe (16). A plurality of oil outlets (24) are evenly arranged on the inner side of the annular pipe (16) in a circle. The oil outlets (24) penetrate through the housing (15) and extend into the lubricating oil flow channels formed between two adjacent partition plates (25), and the oil outlets (24) are fixedly connected to the housing (15). A plurality of displacement rods (22) are inserted and slidably connected to one side of the housing (15). One end of the displacement rod (22) is fixedly connected with a scraper (23). Both sides of the scraper (23) are in contact with the partition plates (25), and one side of the scraper (23) is flush with the surface of the side roller (4). One end of the displacement rod (22) is fixedly connected with a connecting ring (17). One side of the connecting ring (17) is threadedly connected with a second threaded rod (21). One end of the second threaded rod (21) is rotatably arranged on the housing (15). A third motor (20) is fixedly connected to one side of the housing (15). The output end of the third motor (20) is fixedly connected to one end of the second threaded rod (21). An electric heating sheet (26) is arranged in the cavity of the scraper (23), and the scraper (23) is made of a heat-conducting material.

2. The automatic deviation rectifying device for a belt conveyor according to claim 1, wherein: In the middle of the upper end of the base (2), a first motor (8) is fixedly connected. The output end of the first motor (8) is fixedly connected to the bracket (1).

3. The automatic deviation rectifying device for a belt conveyor according to claim 1, characterized in that: One end of the support plate (10) is threadedly connected with a first threaded rod (14). Both ends of the first threaded rod (14) are rotatably arranged on the bracket (1). On both sides of the upper end of the bracket (1), second motors (11) are fixedly connected. The output end of the second motor (11) is fixedly connected to one end of the first threaded rod (14).

4. The automatic deviation rectification device for a belt conveyor according to claim 1, characterized in that: One side of the stopper (30) is rotatably provided with a connecting rod (29), and one end of the connecting rod (29) is rotatably provided with an adjusting ring (18).

5. The automatic deviation rectifying device for a belt conveyor according to claim 4, characterized in that: One side of the merging ring (9) is fixedly connected with a cylinder (28), and the piston end of the cylinder (28) is fixedly connected with one side of the adjusting ring (18).

6. The automatic deviation rectifying device for a belt conveyor according to claim 1, wherein: A worm gear (31) and a gear (27) are rotatably arranged in the middle of the base (2), a worm (32) is rotatably arranged on one side of the base (2), and the worm (32) meshes with the worm gear (31).

7. The automatic deviation rectifying device for a belt conveyor according to claim 6, characterized in that: A plurality of tooth blocks are arranged on the adjusting rod (6), and the gear (27) meshes with the tooth blocks on the adjusting rod (6).

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