A belt conveyor drum clamp detection device

Abstract

The application discloses a belt conveyor roller clamping detection device, and relates to the technical field of clamping detection, which comprises two mounting plates, support plates are fixedly connected inside the mounting plates, a plurality of sliding grooves are formed in the support plates, support arms are slidably connected inside the sliding grooves of the support plates, support blocks are fixedly connected to one ends of the support arms extending to the outside of the mounting plates, connecting plates are arranged on the top of the support blocks, fixed sleeves are fixedly connected to one side of the connecting plates, piston cylinders are fixedly connected inside the fixed sleeves, piston plates are slidably connected inside the piston cylinders, rollers are fixedly connected to the outside of two support rods, springs are arranged on the outside of the sliding rods, a plurality of through holes are formed in the piston plates in an annular array, and laser sensors are fixedly connected to the top of the piston cylinders. The belt conveyor roller clamping detection device realizes multi-contact point detection, improves detection efficiency, prevents the occurrence of missed detection, improves the cleaning range and also improves the cleaning effect.

Description

Technical Field

[0001] This invention relates to the field of material clamping detection technology, specifically a material clamping detection device for belt conveyor rollers. Background Technology

[0002] During the operation of a belt conveyor, material jamming often occurs between the rollers and the conveyor belt due to material accumulation or foreign objects getting caught. This can not only cause the conveyor belt to run off-track and wear more quickly, but may also lead to equipment failure or even safety accidents.

[0003] In the prior art, a Chinese patent with authorization announcement number CN104495292A describes a belt conveyor roller clamping detection device, which includes a detection roller. The two ends of the detection roller are rotatably connected to a movable support. The upper end of the movable support is rotatably fixed to a fixed support. The height of the detection roller allows it to be close to the roller and can be pushed to swing away from the roller around the fixed support when the diameter of the tape wrapped around the roller increases. A position switch is fixed on the fixed support to detect when the offset of the movable support or the detection roller reaches a set amount and sends an electrical signal to the control system.

[0004] The material clamping between the roller and the belt occurs when the material is caught in the gap between the roller and the belt as it passes the roller. Then, as it rotates past the roller, it is pressed onto the roller. In this solution, if foreign objects are detected on the roller, the machine needs to be stopped and the roller cleaned, which wastes working time. If the machine is not stopped in time, it may cause problems such as belt misalignment. In actual use, it cannot be flexibly adjusted according to different roller diameters and conveyor belt widths, and it lacks an efficient automatic cleaning function, making it difficult to detect and remove clamped material in time. Summary of the Invention

[0005] The purpose of this invention is to provide a belt conveyor roller clamping detection device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a belt conveyor roller clamping detection device, comprising two mounting plates, a support plate fixedly connected inside the mounting plates, multiple grooves formed inside the support plates, a support arm slidably connected inside the grooves of the support plates, the support arm penetrating the sidewall of the mounting plates and slidably connected to the mounting plates, a support block fixedly connected to one end of the support arm extending to the outer side of the mounting plates, a connecting plate provided on the top of the support block, a fixing sleeve fixedly connected to one side of the connecting plate, a piston cylinder fixedly connected inside the fixing sleeve, and a piston plate slidably connected inside the piston cylinder. The piston plate has a sliding rod fixedly connected to its bottom. The sliding rod passes through the bottom wall of the piston cylinder and is slidably connected to the piston cylinder. An L-shaped plate is fixedly connected to the bottom end of the sliding rod. Two support rods are rotatably connected inside the L-shaped plate. Rollers are fixedly connected to the outer sides of the two support rods. A spring is sleeved on the outer side of the sliding rod. The two ends of the spring are respectively in contact with the piston cylinder and the L-shaped plate. Multiple through holes are opened in a ring array inside the piston plate. Buffer solution is filled inside the piston cylinder. A laser sensor is fixedly connected to the top end of the piston cylinder. The probe part of the laser sensor passes through the top wall of the piston cylinder and is fixedly connected to the piston cylinder.

[0007] Preferably, a push block is slidably connected inside the support block, and a first threaded rod is rotatably connected inside the support block. The first threaded rod passes through the push block and is threadedly connected to the push block. The connecting plate is fixedly connected to the top of the push block. Rotating the first threaded rod causes the push block to move, and the push block causes the connecting plate and the fixed sleeve to move, thereby adjusting the position of the piston cylinder.

[0008] Preferably, the plurality of support arms are arranged in a semi-circular shape, and a turntable is rotatably connected inside the mounting plate. The turntable has a plurality of guide grooves arranged in a circular array inside. Each of the plurality of support arms is fixedly connected to one side with a first guide rod. The plurality of first guide rods are slidably connected to the plurality of guide grooves and adapted to the plurality of guide grooves. When the turntable rotates, the plurality of guide grooves limit the plurality of first guide rods, thereby driving the plurality of support arms to move.

[0009] Preferably, a hydraulic cylinder is provided on one side inside the mounting plate, and a hinge plate is fixedly connected to one end of the hydraulic cylinder. The hinge plate is rotatably connected to the mounting plate. A push plate is fixedly connected to the output end of the hydraulic cylinder. A push rod is fixedly connected to one side of the turntable. The push rod passes through the push plate and is rotatably connected to the push plate, so that the hydraulic cylinder is started to drive the push plate to move, and drives the push rod to move, thereby pushing the turntable to rotate.

[0010] Preferably, a cover plate is fixedly connected to one side of the mounting plate, a sliding sleeve is slidably connected inside the cover plate, a guide shaft is fixedly connected to one side of the sliding sleeve, the guide shaft passes through the guide groove and is slidably connected to the guide groove, a sliding plate is slidably connected inside the sliding sleeve, a tension spring is provided inside the sliding sleeve, the two ends of the tension spring are fixedly connected to the sliding plate and the sliding sleeve respectively, a limit rod is fixedly connected to one end of the sliding plate, a transverse groove is opened on the side wall of the sliding sleeve, and the limit rod is slidably connected inside the transverse groove to limit the sliding plate.

[0011] Preferably, a side plate is fixedly connected to one end of the sliding plate, and a rotating rod is rotatably connected inside the side plate. A second threaded rod is fixedly connected to one end of the rotating rod, and a movable block is sleeved on the outer side of the second threaded rod. A threaded ring is fixedly connected to one side wall of the movable block, and the second threaded rod passes through the threaded ring and is threadedly connected to the threaded ring. A rotating ring is rotatably connected inside the other side wall of the movable block, and sliders are integrally formed on both sides of the rotating ring. Limiting grooves are formed on both sides of the second threaded rod, and the two sliders are slidably connected inside the two limiting grooves and adapted to the two limiting grooves. The limiting grooves limit and guide the sliders, thereby driving the rotating ring to rotate.

[0012] Preferably, a rotating shaft is rotatably connected inside the movable block, a cleaning plate is fixedly connected to one end of the rotating shaft, and multiple hooks are fixedly connected to the outside of the cleaning plate. A second bevel gear is fixedly connected to the end of the rotating shaft facing inward of the movable block, and a first bevel gear is fixedly connected to the side of the rotating ring facing inward of the movable block. The first bevel gear is sleeved on the outside of the second threaded rod, and the second bevel gear meshes with the first bevel gear. The rotation of the rotating ring drives the first bevel gear to rotate, and the first bevel gear drives the second bevel gear to rotate.

[0013] Preferably, a limiting block is fixedly connected to one side of the moving block, a baffle is fixedly connected to one end of the second threaded rod, a horizontal plate is rotatably connected to one side of the baffle, and a round rod is fixedly connected between the side plate and the horizontal plate. The round rod passes through the limiting block and is slidably connected to the limiting block. The round rod limits and guides the limiting block, thereby improving the stability of the moving block during movement.

[0014] Preferably, an adjusting plate is sleeved on the outer side of the rotating rod. Two scrapers are hinged to one end of the adjusting plate. Spring pieces are fixedly connected to both the upper and lower sides of the adjusting plate. The top ends of the two spring pieces are slidably connected to the two scrapers respectively. A third threaded rod is rotatably connected to one side of the adjusting plate. The third threaded rod passes through the side plate and is threadedly connected to the side plate. The third threaded rod rotates and moves inside the side plate, thereby driving the adjusting plate to move and adjusting the position of the adjusting plate.

[0015] Preferably, a transmission rod is provided between the two second threaded rods, with both ends of the transmission rod slidably connected to the inside of the two second threaded rods respectively. A cross plate is sleeved on the outside of the transmission rod, and side grooves are provided on both sides of the transmission rod. Guide plates are integrally formed on both sides of the inside of the second threaded rod, and the two guide plates are slidably connected to the inside of the two side grooves and adapted to the two side grooves respectively. A motor is fixedly connected to one side of one of the side plates, and multiple laser sensors are electrically connected to the motor. The output end of the motor is fixedly connected to the second threaded rod to drive the two second threaded rods and adapt to the installation position of conveyors of different widths.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. In this application, when material gets stuck between the conveyor belt and the roller, the conveyor belt will be lifted by the material, causing the raised conveyor belt to lift the roller, which in turn causes the roller to move the L-shaped plate and the slide bar. When the slide bar moves, it causes the piston plate to slide inside the piston cylinder. The probe of the laser sensor detects the change in the position of the piston plate, which in turn sends a signal to the motor to control the motor to start and clean the stuck material. Multi-contact detection improves detection efficiency and prevents missed detection.

[0018] 2. In this application, when the second threaded rod rotates, the two second threaded rods rotate synchronously through the transmission rod. When the second threaded rod rotates, it rotates the slider through the limiting groove, causing the slider to drive the rotating ring to rotate, which in turn drives the first bevel gear to rotate. At the same time, the first bevel gear drives the rotating shaft to rotate, which in turn drives the cleaning plate to rotate. The cleaning plate cleans the outside of the drum, removing materials and debris. When the cleaning plate rotates, it also drives multiple hooks to rotate, which can hook some packaging bags that are caught between the drum and the conveyor belt for easy cleaning. At the same time, when the second threaded rod rotates, it drives the threaded ring to move, which in turn drives the moving block to move horizontally. The moving block drives the cleaning plate and hooks to move back and forth, so that the cleaning plate and hooks repeatedly clean the outer end of the drum, increasing the cleaning range and improving the cleaning effect. The cleaning is automatic, requires no machine downtime, and is highly efficient and convenient.

[0019] 3. This application uses the rotation of the third threaded rod to move the adjusting plate, adjusting the position of the adjusting plate and the scraper so that the scraper is close to the edge of the roller and the conveyor belt. This position is the initial position for material to be entrained. By keeping the scraper in contact with the roller, the scraper scrapes the material off. The spring plate applies force to the scraper to keep it in contact with the roller. This solution is suitable for use with conveyors of different sizes. The detection structure of this solution is distributed on the contact surface between the drive roller and the belt. Therefore, when material is trapped, no matter where the foreign object is on the contact surface, it can be detected by the subsequent detection structure without any omissions. In addition, there is a cleaning mechanism on the non-contact surface between the roller and the belt that keeps it in contact with the roller to clean the foreign object, so that any missed foreign objects will not be re-entered into the belt gap. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 For the present invention Figure 1 Front structure diagram;

[0022] Figure 3 This is a schematic diagram of the cover plate of the present invention;

[0023] Figure 4 This is a schematic diagram of the structure of the turntable of the present invention;

[0024] Figure 5 This is a schematic diagram of the support arm of the present invention;

[0025] Figure 6 This is a schematic diagram of the support block of the present invention;

[0026] Figure 7 This is a schematic diagram of the connecting plate of the present invention;

[0027] Figure 8 This is a schematic diagram of the piston plate of the present invention;

[0028] Figure 9 This is a schematic diagram of the support plate of the present invention;

[0029] Figure 10 This is a schematic diagram of the structure of the sliding sleeve of the present invention;

[0030] Figure 11 This is a schematic diagram of the rotating rod of the present invention;

[0031] Figure 12 This is a schematic diagram of the structure of the round rod of the present invention;

[0032] Figure 13 This is a schematic diagram of the structure of the second threaded rod of the present invention;

[0033] Figure 14This is a schematic diagram of the hook structure of the present invention;

[0034] Figure 15 This is a schematic diagram of the structure of the adjusting plate of the present invention;

[0035] Figure 16 This is a schematic diagram of the transmission rod of the present invention;

[0036] Figure 17 This is a schematic diagram of the working state of the present invention.

[0037] Labels in the diagram: 1. Mounting plate; 2. Support plate; 3. Support arm; 4. Support block; 5. Connecting plate; 6. Fixing sleeve; 7. Piston cylinder; 8. Piston plate; 801. Through hole; 9. Slide rod; 10. L-shaped plate; 11. Roller; 12. Support rod; 13. Spring; 14. Laser sensor; 15. First threaded rod; 16. Push block; 17. First guide rod; 18. Turntable; 19. Guide groove; 20. Hydraulic cylinder; 21. Hinge plate; 22. Push plate; 23. Push rod; 24. Slide sleeve; 2401. Horizontal groove; 2402. Tension spring; 25. Guide shaft; 26. Slide 27. Moving plate; 28. Limiting rod; 39. Side plate; 30. Rotating rod; 31. Second threaded rod; 3101. Limiting groove; 3102. Guide plate; 32. Moving block; 33. Rotating shaft; 34. Cleaning plate; 35. Hook; 36. Threaded ring; 37. Rotating ring; 3701. Sliding block; 38. First bevel gear; 39. Second bevel gear; 40. Limiting block; 41. Round rod; 42. Horizontal plate; 43. Transmission rod; 4301. Side groove; 44. Baffle; 45. Third threaded rod; 46. Adjusting plate; 47. Scraper; 48. Spring; 49. Motor; 50. Cover plate. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] Example: Figures 1-17As shown, the present invention provides a technical solution for a belt conveyor roller clamping detection device, comprising two mounting plates 1, a support plate 2 fixedly connected inside the mounting plate 1, multiple grooves formed inside the support plate 2, a support arm 3 slidably connected inside the grooves of the support plate 2, the support arm 3 penetrating through the side wall of the mounting plate 1 and slidably connected to the mounting plate 1, a support block 4 fixedly connected to one end of the support arm 3 extending to the outer side of the mounting plate 1, a connecting plate 5 provided on the top of the support block 4, a fixing sleeve 6 fixedly connected to one side of the connecting plate 5, a piston cylinder 7 fixedly connected inside the fixing sleeve 6, a piston plate 8 slidably connected inside the piston cylinder 7, and a piston plate 8 fixed at the bottom. A sliding rod 9 is connected, which passes through the bottom wall of the piston cylinder 7 and is slidably connected to the piston cylinder 7. An L-shaped plate 10 is fixedly connected to the bottom of the sliding rod 9. Two support rods 12 are rotatably connected inside the L-shaped plate 10. Rollers 11 are fixedly connected to the outside of the two support rods 12. A spring 13 is sleeved on the outside of the sliding rod 9. The two ends of the spring 13 are respectively in contact with the piston cylinder 7 and the L-shaped plate 10. Multiple through holes 801 are opened in a ring array inside the piston plate 8. Buffer solution is poured into the piston cylinder 7. A laser sensor 14 is fixedly connected to the top of the piston cylinder 7. The probe part of the laser sensor 14 passes through the top wall of the piston cylinder 7 and is fixedly connected to the piston cylinder 7.

[0040] The support block 4 has a sliding connection to a push block 16 inside, and a first threaded rod 15 is rotatably connected inside the support block 4. The first threaded rod 15 passes through the push block 16 and is threadedly connected to the push block 16. The connecting plate 5 is fixedly connected to the top of the push block 16. Rotating the first threaded rod 15 drives the push block 16 to move, and the push block 16 drives the connecting plate 5 and the fixed sleeve 6 to move, thereby adjusting the position of the piston cylinder 7.

[0041] Multiple support arms 3 are arranged in a semi-circular shape. A turntable 18 is rotatably connected inside the mounting plate 1. Multiple guide grooves 19 are arranged in a circular array inside the turntable 18. Each of the multiple support arms 3 is fixedly connected to one side with a first guide rod 17. The multiple first guide rods 17 are slidably connected to the multiple guide grooves 19 and are adapted to the multiple guide grooves 19. When the turntable 18 rotates, the multiple guide grooves 19 limit the multiple first guide rods 17, thereby driving the multiple support arms 3 to move. A hydraulic cylinder 20 is provided inside the mounting plate 1 on one side. A hinge plate 21 is fixedly connected to one end of the hydraulic cylinder 20. The hinge plate 21 is rotatably connected to the mounting plate 1. A push plate 22 is fixedly connected to the output end of the hydraulic cylinder 20. A push rod 23 is fixedly connected to one side of the turntable 18. The push rod 23 passes through the push plate 22 and is rotatably connected to the push plate 22. When the hydraulic cylinder 20 is activated, it drives the push plate 22 to move, and drives the push rod 23 to move, thereby pushing the turntable 18 to rotate.

[0042] A cover plate 50 is fixedly connected to one side of the mounting plate 1. A sliding sleeve 24 is slidably connected inside the cover plate 50. A guide shaft 25 is fixedly connected to one side of the sliding sleeve 24. The guide shaft 25 passes through the guide groove 19 and is slidably connected to the guide groove 19. A sliding plate 26 is slidably connected inside the sliding sleeve 24. A tension spring 2402 is provided inside the sliding sleeve 24. Both ends of the tension spring 2402 are fixedly connected to the sliding plate 26 and the sliding sleeve 24, respectively. A limit rod 27 is fixedly connected to one end of the sliding plate 26. A transverse groove 2401 is opened on the side wall of the sliding sleeve 24. The limit rod 27 is slidably connected inside the transverse groove 2401 to limit the sliding plate 26.

[0043] A side plate 28 is fixedly connected to one end of a sliding plate 26. A rotating rod 30 is rotatably connected inside the side plate 28. A second threaded rod 31 is fixedly connected to one end of the rotating rod 30. A movable block 32 is sleeved on the outside of the second threaded rod 31. A threaded ring 36 is fixedly connected to one side wall of the movable block 32. The second threaded rod 31 passes through the threaded ring 36 and is threadedly connected to the threaded ring 36. A rotating ring 37 is rotatably connected inside the other side wall of the movable block 32. Slider blocks 3701 are integrally formed on both sides inside the rotating ring 37. Limiting grooves 3101 are opened on both sides of the second threaded rod 31. The two sliders 3701 are slidably connected to the two limiting grooves 3101 and are adapted to the two limiting grooves 3101. The limiting grooves 3101 limit and guide the sliders 3701, thereby driving the rotating ring 37 to rotate. A rotating shaft 33 is rotatably connected inside the movable block 32. A cleaning plate 34 is fixedly connected to one end of the rotating shaft 33. Multiple hooks 35 are fixedly connected to the outer side of the guide plate 34. A second bevel gear 39 is fixedly connected to the end of the rotating shaft 33 facing the inside of the moving block 32. A first bevel gear 38 is fixedly connected to the side of the rotating ring 37 facing the inside of the moving block 32. The first bevel gear 38 is sleeved on the outside of the second threaded rod 31. The second bevel gear 39 meshes with the first bevel gear 38. The rotation of the rotating ring 37 drives the first bevel gear 38 to rotate, and the first bevel gear 38 drives the second bevel gear 39 to rotate. A limit block 40 is fixedly connected to one side of the moving block 32. A baffle 44 is fixedly connected to one end of the second threaded rod 31. A horizontal plate 42 is rotatably connected to one side of the baffle 44. A round rod 41 is fixedly connected between the side plate 28 and the horizontal plate 42. The round rod 41 passes through the limit block 40 and slides with the limit block 40. The round rod 41 limits and guides the limit block 40, improving the stability of the moving block 32 during movement.

[0044] An adjusting plate 46 is sleeved on the outside of the rotating rod 30. Two scrapers 47 are hinged to one end of the adjusting plate 46. Spring pieces 48 are fixedly connected to both the upper and lower sides of the adjusting plate 46. The tops of the two spring pieces 48 are slidably connected to the two scrapers 47 respectively. A third threaded rod 45 is rotatably connected to one side of the adjusting plate 46. The third threaded rod 45 passes through the side plate 28 and is threadedly connected to the side plate 28. The third threaded rod 45 rotates and moves inside the side plate 28, thereby driving the adjusting plate 46 to move and adjusting the position of the adjusting plate 46.

[0045] A transmission rod 43 is provided between the two second threaded rods 31. The two ends of the transmission rod 43 are slidably connected to the inside of the two second threaded rods 31. A cross plate 42 is sleeved on the outside of the transmission rod 43. Side grooves 4301 are opened on both sides of the transmission rod 43. Guide plates 3102 are integrally formed on both sides of the inside of the second threaded rods 31. The two guide plates 3102 are slidably connected to the inside of the two side grooves 4301 and are adapted to the two side grooves 4301. A motor 49 is fixedly connected to one side of one of the side plates 28. Multiple laser sensors 14 are electrically connected to the motor 49. The output end of the motor 49 is fixedly connected to the second threaded rods 31 to drive the two second threaded rods 31 and adapt to the installation position of conveyors of different widths.

[0046] In this design, because the middle section of the belt conveyor is generally empty, with rollers supporting both ends, when material is conveyed to the ends, the gap between the belt and the rollers may trap the material. When the material is trapped at both ends, it will be wrapped between the rollers and the belt. Two mounting plates 1 are fixedly installed on both sides of the conveyor, with the center of the mounting plate 1 aligned with the conveyor rollers. The hydraulic cylinder 20 is activated, causing the push plate 22 to move, which in turn moves the push rod 23, thereby pushing the turntable 18 to rotate. When the turntable 18 rotates, its internal... Multiple guide grooves 19 limit the movement of multiple first guide rods 17, thereby allowing the multiple first guide rods 17 to move along the trajectory of the guide grooves 19. Because the support arm 3 is slidably connected inside the support plate 2, the multiple first guide rods 17 drive the multiple support arms 3 to extend outward or retract inward, thereby adjusting the position of the multiple piston cylinders 7 to adapt to rollers of different diameters. When the multiple piston cylinders 7 move, they drive the multiple sliding rods 9 and L-shaped plates 10 to move, and drive the multiple rollers 11 to fit against the outer surface of the conveyor belt of the conveyor, adapting to conveyors of different sizes and models. When the roller 11 comes into contact with the conveyor belt, the L-shaped plate 10 drives the slide rod 9 and the piston plate 8 to move towards the piston cylinder 7. This causes the L-shaped plate 10 to compress the spring 13, and as the piston plate 8 moves inside the piston cylinder 7, buffer solution flows through multiple through holes 801, creating a damping effect. This buffers the roller 11 and improves its stability when in contact with the conveyor belt. The first threaded rod 15 is rotated to move the push block 16, which in turn moves the connecting plate 5 and the fixing sleeve 6, thus adjusting the level of the roller 11. The position of the roller 11 is such that it is close to the edge of the conveyor belt to prevent it from affecting the material transfer. When material gets stuck between the conveyor belt and the roller, the conveyor belt will be lifted by the material, causing the raised conveyor belt to lift the roller 11. This causes the roller 11 to move the L-shaped plate 10 and the slide bar 9. When the slide bar 9 moves, it causes the piston plate 8 to slide inside the piston cylinder 7. The probe of the laser sensor 14 detects the change in the position of the piston plate 8, which causes the piston plate 8 to send a signal to the motor 49, controlling the motor 49 to start and clean the stuck material. Multi-contact detection improves detection efficiency and prevents missed detection.

[0047] The sliding plate 26 is pulled towards the sliding sleeve 24 by the tension spring 2402, causing the sliding plate 26 to move the side plate 28 and the second threaded rod 31 closer to the conveyor drum. This direction is opposite to the contact direction between the drum and the conveyor belt, pulling the cleaning plate 34 and the scraper 47 to fit against the drum. When the motor 49 starts, it drives the rotating rod 30 to rotate. When the rotating rod 30 rotates, it drives the second threaded rod 31 to rotate. When the second threaded rod 31 rotates, it is transmitted through the transmission rod 43 to make the two second threaded rods 31 rotate synchronously. The slider 3701 is rotated through the limiting groove 3101, which in turn drives the rotating ring 37 to rotate. The rotating ring 37 drives the first bevel gear 38 to rotate, and the first bevel gear 38 drives the rotating shaft 33 to rotate. The rotating shaft 33 drives the cleaning plate 34 to rotate, so that the cleaning plate 34 cleans the outside of the drum, removing materials and debris. When the cleaning plate 34 rotates, it drives multiple hooks 35 to rotate, which can hook some packaging bags that are caught between the drum and the conveyor belt for easy cleaning.

[0048] At the same time, when the second threaded rod 31 rotates, it drives the threaded ring 36 to move, which in turn drives the moving block 32 to move horizontally. The moving block 32 then drives the cleaning plate 34 and the hook 35 to move back and forth, thereby allowing the cleaning plate 34 and the hook 35 to repeatedly clean the outer end of the roller, increasing the cleaning range and improving the cleaning effect.

[0049] By rotating the third threaded rod 45, the adjusting plate 46 is moved, and the positions of the adjusting plate 46 and the scraper 47 are adjusted so that the scraper 47 is close to the edge of the roller and the conveyor belt. This position is the initial position for material to be entrained. By keeping the scraper 47 in contact with the roller, the scraper 47 scrapes the material off. The spring plate 48 applies force to the scraper 47 to keep it in contact with the roller. This solution is suitable for use with conveyors of different sizes. The detection structure of this solution is distributed on the contact surface between the drive roller and the belt. Therefore, when material is trapped, no matter where the foreign object is on the contact surface, it can be detected by the subsequent detection structure without any omissions. In addition, there is a cleaning mechanism on the non-contact surface between the roller and the belt that keeps it in contact with the roller to clean the foreign object, so that any missed foreign objects will not be re-entered into the belt gap.

[0050] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A device for detecting material clamping in a belt conveyor roller, characterized in that: Includes two mounting plates (1), with a support plate (2) fixedly connected inside the mounting plate (1). Multiple grooves are provided inside the support plate (2), and a support arm (3) is slidably connected inside the grooves of the support plate (2). The support arm (3) penetrates the side wall of the mounting plate (1) and is slidably connected to the mounting plate (1). A support block (4) is fixedly connected to one end of the support arm (3) extending to the outside of the mounting plate (1). A connecting plate (5) is provided on the top of the support block (4). A fixing sleeve (6) is fixedly connected to one side of the connecting plate (5). A piston cylinder (7) is fixedly connected inside the fixing sleeve (6). A piston plate (8) is slidably connected inside the piston cylinder (7). A sliding rod (9) is fixedly connected to the bottom of the piston plate (8). The sliding rod (9) penetrates... The piston rod (9) is slidably connected to the bottom wall of the piston cylinder (7). An L-shaped plate (10) is fixedly connected to the bottom end of the sliding rod (9). Two support rods (12) are rotatably connected inside the L-shaped plate (10). Rollers (11) are fixedly connected to the outer sides of the two support rods (12). A spring (13) is sleeved on the outer side of the sliding rod (9). The two ends of the spring (13) are respectively in contact with the piston cylinder (7) and the L-shaped plate (10). Multiple through holes (801) are opened in a ring array inside the piston plate (8). Buffer solution is poured into the piston cylinder (7). A laser sensor (14) is fixedly connected to the top end of the piston cylinder (7). The probe part of the laser sensor (14) penetrates the top wall of the piston cylinder (7) and is fixedly connected to the piston cylinder (7).

2. The belt conveyor roller clamping detection device according to claim 1, characterized in that: The support block (4) has a sliding connection to a push block (16), and the support block (4) has a rotating connection to a first threaded rod (15). The first threaded rod (15) passes through the push block (16) and is threadedly connected to the push block (16). The connecting plate (5) is fixedly connected to the top of the push block (16).

3. The belt conveyor roller clamping detection device according to claim 1, characterized in that: The multiple support arms (3) are arranged in a semi-circular shape. The mounting plate (1) is rotatably connected to a turntable (18). The turntable (18) has multiple guide grooves (19) arranged in a ring array inside. Each of the multiple support arms (3) is fixedly connected to a first guide rod (17) on one side. The multiple first guide rods (17) are slidably connected to the multiple guide grooves (19) and are adapted to the multiple guide grooves (19).

4. The belt conveyor roller clamping detection device according to claim 3, characterized in that: A hydraulic cylinder (20) is provided on one side inside the mounting plate (1). A hinge plate (21) is fixedly connected to one end of the hydraulic cylinder (20). The hinge plate (21) is rotatably connected to the mounting plate (1). A push plate (22) is fixedly connected to the output end of the hydraulic cylinder (20). A push rod (23) is fixedly connected to one side of the turntable (18). The push rod (23) passes through the push plate (22) and is rotatably connected to the push plate (22).

5. The belt conveyor roller clamping detection device according to claim 1, characterized in that: A cover plate (50) is fixedly connected to one side of the mounting plate (1). A sliding sleeve (24) is slidably connected inside the cover plate (50). A guide shaft (25) is fixedly connected to one side of the sliding sleeve (24). The guide shaft (25) passes through the guide groove (19) and is slidably connected to the guide groove (19). A sliding plate (26) is slidably connected inside the sliding sleeve (24). A tension spring (2402) is provided inside the sliding sleeve (24). The two ends of the tension spring (2402) are fixedly connected to the sliding plate (26) and the sliding sleeve (24) respectively. A limit rod (27) is fixedly connected to one end of the sliding plate (26). A transverse groove (2401) is opened on the side wall of the sliding sleeve (24). The limit rod (27) is slidably connected inside the transverse groove (2401).

6. The belt conveyor roller clamping detection device according to claim 5, characterized in that: One end of the sliding plate (26) is fixedly connected to a side plate (28). A rotating rod (30) is rotatably connected inside the side plate (28). One end of the rotating rod (30) is fixedly connected to a second threaded rod (31). A moving block (32) is sleeved on the outside of the second threaded rod (31). A threaded ring (36) is fixedly connected to one side wall of the moving block (32). The second threaded rod (31) passes through the threaded ring (36) and is threadedly connected to the threaded ring (36). A rotating ring (37) is rotatably connected inside the other side wall of the moving block (32). Slider blocks (3701) are integrally formed on both sides inside the rotating ring (37). Limiting grooves (3101) are opened on both sides of the second threaded rod (31). The two sliders (3701) are slidably connected inside the two limiting grooves (3101) and are adapted to the two limiting grooves (3101).

7. The belt conveyor roller clamping detection device according to claim 6, characterized in that: The movable block (32) is rotatably connected to a rotating shaft (33). One end of the rotating shaft (33) is fixedly connected to a cleaning plate (34). Multiple hooks (35) are fixedly connected to the outside of the cleaning plate (34). A second bevel gear (39) is fixedly connected to the end of the rotating shaft (33) facing the inside of the movable block (32). A first bevel gear (38) is fixedly connected to the side of the rotating ring (37) facing the inside of the movable block (32). The first bevel gear (38) is sleeved on the outside of the second threaded rod (31). The second bevel gear (39) meshes with the first bevel gear (38).

8. The belt conveyor roller clamping detection device according to claim 6, characterized in that: The movable block (32) is fixedly connected to a limiting block (40) on one side, and a baffle (44) is fixedly connected to one end of the second threaded rod (31). A horizontal plate (42) is rotatably connected to one side of the baffle (44). A round rod (41) is fixedly connected between the side plate (28) and the horizontal plate (42). The round rod (41) passes through the limiting block (40) and is slidably connected to the limiting block (40).

9. A belt conveyor roller clamping detection device according to claim 6, characterized in that: An adjusting plate (46) is sleeved on the outside of the rotating rod (30). Two scrapers (47) are hinged to one end of the adjusting plate (46). Spring pieces (48) are fixedly connected to both the upper and lower sides of the adjusting plate (46). The top ends of the two spring pieces (48) are slidably connected to the two scrapers (47) respectively. A third threaded rod (45) is rotatably connected to one side of the adjusting plate (46). The third threaded rod (45) passes through the side plate (28) and is threadedly connected to the side plate (28).

10. A belt conveyor roller clamping detection device according to claim 8, characterized in that: A transmission rod (43) is provided between the two second threaded rods (31). The two ends of the transmission rod (43) are slidably connected to the inside of the two second threaded rods (31). The cross plate (42) is sleeved on the outside of the transmission rod (43). Side grooves (4301) are provided on both sides of the transmission rod (43). Guide plates (3102) are integrally formed on both sides of the inside of the second threaded rod (31). The two guide plates (3102) are slidably connected to the inside of the two side grooves (4301) and are adapted to the two side grooves (4301). A motor (49) is fixedly connected to one side of one of the side plates (28). Multiple laser sensors (14) are electrically connected to the motor (49). The output end of the motor (49) is fixedly connected to the second threaded rod (31).

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