Automatic tensioning device of mining belt conveyor

Abstract

The invention provides an automatic tensioning device for a mining belt conveyor, and belongs to the technical field of belt conveyors, the automatic tensioning device comprises a supporting frame, a bearing plate is fixedly connected to the front of the supporting frame, supporting columns are fixedly connected to the front side and the rear side of the upper surface of the bearing plate, and an air cylinder is arranged in front of the upper surface of the bearing plate through a first movable frame; the position of the tensioning roller can be automatically adjusted according to the running state of the belt conveyor through the air cylinder by means of the first driving rod, the second movable frame and other components, and dynamic adjustment of the tension of the conveying belt is achieved. Compared with a traditional manual tensioning mode, looseness, caused by abrasion, temperature changes and other factors, of the conveying belt can be rapidly responded, it is guaranteed that the conveying belt is in the optimal tensioning state all the time, and a second driving motor in the driving assembly achieves large-range tensioning distance adjustment through threaded transmission of a third driving rod, a rotating gear and a threaded ring. The dual-drive mode gives consideration to the adjusting precision and the adjusting range, and the tensioning requirements under different working conditions are met.

Description

Technical Field

[0001] This invention belongs to the technical field of belt conveyors, specifically an automatic tensioning device for mining belt conveyors. Background Technology

[0002] Belt conveyors, also known as belt conveyors, are mechanical devices that use a continuously moving conveyor belt to carry and transport materials. They are widely used in industries such as mining, ports, power, metallurgy, building materials, chemicals, and food processing. Their core structure includes the conveyor belt, drive unit, idlers, rollers, tensioning devices, and frame. They are characterized by high conveying capacity, stable operation, and easy maintenance, making them an indispensable and efficient conveying tool in modern industrial production.

[0003] The existing mining belt conveyors have a slow response speed in their tensioning devices. When tensioning the belt conveyor, it is difficult to quickly tension the conveyor belt, which may affect the tensioning work, reduce the efficiency of the tensioning work, and thus reduce its practicality.

[0004] Furthermore, when tensioning the conveyor belt of a mining conveyor, the material being transported may shift, potentially causing material to fall or deviate from its designated path, which would hinder the transportation process.

[0005] Therefore, we propose an automatic tensioning device for mining belt conveyors to solve the problems mentioned above. Summary of the Invention

[0006] The purpose of this invention is to solve the problems mentioned in the background art and to propose an automatic tensioning device for mining belt conveyors.

[0007] The objective of this invention can be achieved through the following technical solution: An automatic tensioning device for a mining belt conveyor, comprising a support frame, a load-bearing plate fixedly connected to the front of the support frame, support columns fixedly connected to both the front and rear sides of the upper surface of the load-bearing plate, a cylinder provided at the front of the upper surface of the load-bearing plate via a movable frame, a drive rod provided at the power output end of the cylinder, a movable frame two fixedly connected to the upper surface of the drive rod one, a connecting plate one movably connected to the rear of the movable frame two, a rotating rod one fixedly connected to the top position behind the connecting plate one, and an auxiliary tensioning component provided behind the rotating rod one.

[0008] The auxiliary tensioning assembly includes a fixing clamp, a square plate fixedly connected to the rear of the fixing clamp, a fixing frame fixedly connected to the rear of the lower surface of the square plate, a drive motor provided on the inner wall of the fixing frame, a drive rod provided at the power output end of the drive motor, a tensioning roller movably connected to the front of the drive rod, and the front of the tensioning roller movably connected to the rear of the fixing plate via a receiving rod.

[0009] In a preferred embodiment of the present invention, a fixing clip 2 is fixedly connected to the rear of the square plate, a rotating rod 2 is fixedly connected to the rear of the fixing clip 2, a connecting plate 2 is fixedly connected to the rear of the rotating rod 2, a receiving plate is fixedly connected to the bottom position of the rear of the connecting plate 2, and a driving component is provided behind the lower surface of the receiving plate.

[0010] In a preferred embodiment of the present invention, the drive assembly includes a connecting frame, a threaded ring fixedly connected to the lower surface of the connecting frame, fixed posts fixedly connected to the left and right sides of the threaded ring, a first limiting frame fixedly connected to the rear of the fixed posts, a second limiting frame fixedly connected to the front of the fixed posts, a placement frame fixedly connected to the rear of the first limiting frame, and a second drive motor provided on the upper surface of the placement frame.

[0011] In a preferred embodiment of the present invention, the power output end of the drive motor 2 is provided with a drive rod 3, a connecting plate 3 is provided in front of the drive rod 3, a movable rod 1 is provided at the bottom position in front of the connecting plate 3, and a rotating gear is fixedly connected to the front of the movable rod 1, and the outer surface of the rotating gear is connected to the internal thread of the threaded ring.

[0012] In a preferred embodiment of the present invention, a movable rod two is provided in front of the rotating gear, a connecting plate four is provided in front of the movable rod two, a movable rod three is provided at the top position in front of the connecting plate four, and a seasoning component is provided in front of the movable rod three.

[0013] In a preferred embodiment of the present invention, the seasoning assembly includes a movable block, and the front of the movable rod three is connected to the rear of the movable block. Slider blocks are fixedly connected to both sides of the movable block, and both sliders are movably connected to both sides of the inner wall of the fixed frame through a sliding groove.

[0014] In a preferred embodiment of the present invention, a limiting frame is fixedly connected to the front of the movable block, a limiting plate is inserted into the inside of the limiting frame, and the left and right sides of the limiting plate are fixedly connected to the inner side of the limiting frame 2. A connecting column is fixedly connected to the front of the limiting frame, and a pusher plate is fixedly connected to the front of the connecting column.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] (1) Through the cylinder and components such as drive rod one and movable frame two, the position of the tensioning roller can be automatically adjusted according to the operating status of the belt conveyor, realizing dynamic adjustment of the conveyor belt tension. Compared with the traditional manual tensioning method, it can quickly respond to the slack of the conveyor belt caused by factors such as wear and temperature changes, ensuring that the conveyor belt is always in the optimal tension state, avoiding slippage, deviation and other problems, improving conveying efficiency and reliability. Drive motor one can directly drive the tensioning roller for fine adjustment to ensure uniform distribution of tension force; drive motor two in the drive assembly realizes a wide range of tension distance adjustment through drive rod three, rotating gear and threaded ring screw transmission. The dual drive mode takes into account both adjustment accuracy and adjustment range, adapting to the tensioning needs under different working conditions;

[0017] (2) The movable block in the seasoning component can slide within the fixed frame. Then, through components such as the pusher plate, the application point and force of the tensioning device can be flexibly adjusted according to the different specifications of the conveyor belt, such as width, thickness and load conditions. This avoids material falling or material deviation when the auxiliary tensioning component is working, and improves the adaptability of the device to various types of mining belt conveyors. Attached Figure Description

[0018] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the structure of an automatic tensioning device for a mining belt conveyor according to the present invention;

[0020] Figure 2 This is a schematic diagram of the load-bearing plate structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the auxiliary tensioning component structure of the present invention;

[0022] Figure 4 This is a schematic diagram of the drive component structure of the present invention;

[0023] Figure 5 This is a schematic diagram of the seasoning component structure of the present invention;

[0024] Figure 6 This is a schematic diagram of the threaded ring structure of the present invention.

[0025] In the diagram: 1. Support frame; 2. Load-bearing plate; 3. Movable frame one; 4. Cylinder; 5. Drive rod one; 6. Movable frame two; 7. Connecting plate one; 8. Rotating rod one; 9. Auxiliary tensioning assembly; 10. Fixing clamp one; 11. Square plate; 12. Fixing frame one; 13. Drive motor one; 14. Drive rod two; 15. Tensioning roller; 16. Supporting rod; 17. Fixing plate; 18. Fixing clamp two; 19. Rotating rod two; 20. Connecting plate two; 21. Supporting plate; 22. Drive assembly; 23. Connecting frame; 24. Threaded ring; 25. Fixed column; 26. Limiting frame one; 27. Placement frame; 28. Drive motor two; 29. ​​Drive rod three; 30. Connecting plate three; 31. Movable rod one; 32. Rotating gear; 33. Movable rod two; 34. Connecting plate four; 35. Movable rod three; 36. Seasoning assembly; 37. Fixed frame; 38. Slide groove; 39. Sliding block; 40. Movable block; 41. Limiting frame; 42. Limiting plate; 43. Connecting column; 44. Push plate; 45. Limiting frame two; 46. Support column. Detailed Implementation

[0026] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. 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.

[0027] Example 1:

[0028] Please see Figure 1 - Figure 3 As shown, an automatic tensioning device for a mining belt conveyor includes a support frame 1. A load-bearing plate 2 is fixedly connected to the front of the support frame 1. Support columns 46 are fixedly connected to both the front and rear sides of the upper surface of the load-bearing plate 2. A cylinder 4 is provided in front of the upper surface of the load-bearing plate 2 via a movable frame 3. A drive rod 5 is provided at the power output end of the cylinder 4. A movable frame 6 is fixedly connected to the upper surface of the drive rod 5. A connecting plate 7 is movably connected to the rear of the movable frame 6. A rotating rod 8 is fixedly connected to the top position behind the connecting plate 7. An auxiliary tensioning component 9 is provided behind the rotating rod 8.

[0029] The auxiliary tensioning assembly 9 includes a fixing clamp 10, a square plate 11 fixedly connected to the rear of the fixing clamp 10, a fixing frame 12 fixedly connected to the rear of the lower surface of the square plate 11, a drive motor 13 installed on the inner wall of the fixing frame 12, a drive rod 14 installed at the power output end of the drive motor 13, and a tensioning roller 15 movably connected to the front of the drive rod 14. The front of the tensioning roller 15 is movably connected to the rear of the fixing plate 17 via a receiving rod 16. The tensioning roller 15 in the auxiliary tensioning assembly 9 is connected to the fixing plate 17 via the receiving rod 16. As the assembly moves upward, the tensioning roller 15 lifts the conveyor belt, increasing its tension and completing the initial tensioning. This design can quickly respond to the slack state of the conveyor belt and avoid slippage caused by insufficient tension.

[0030] The load-bearing plate 2 and the support column 46 form the basic frame of the device, providing high-strength support and ensuring structural stability in the complex vibration environment of the mine. The fixing clamp 10, the square plate 11, and the fixing frame 12 securely connect the drive motor 13 to the tensioning roller 15 to prevent loosening during operation;

[0031] The existing mining belt conveyors have a slow response speed in their tensioning devices. When tensioning the belt conveyor, it is difficult to quickly tension the conveyor belt, which may affect the tensioning work, reduce the efficiency of the tensioning work, and thus reduce its practicality.

[0032] First, install the automatic tensioning device onto the corresponding position of the mining belt conveyor via support frame 1, ensuring that the load-bearing plate 2 and support column 46 provide stable support. Check the connection and operating status of power components such as cylinder 4 and drive motor 13, confirming that the tensioning roller 15 is properly attached to the conveyor belt. When the belt conveyor needs tensioning, start cylinder 4. The power output end of cylinder 4 pushes drive rod 5 upward, and drive rod 5 drives connecting plate 7 to rotate around the connection point via movable frame 2 6, thereby pulling rotating rod 8, causing the auxiliary tensioning assembly 9 to rotate and move upward as a whole. Under the connection of support rod 16, tensioning roller 15 slightly lifts the conveyor belt upward, completing the initial tensioning. If the conveyor belt tension still does not reach the set value after initial tensioning, drive motor 13 starts. Drive motor 13 drives tensioning roller 15 to rotate slightly via drive rod 2 14, changing the contact angle and pressure between tensioning roller 15 and conveyor belt. By making continuous small adjustments, the tension of the conveyor belt can be stabilized and adjusted to a suitable level, ensuring smooth operation of the conveyor belt and preventing slippage or excessive tension.

[0033] Example 2:

[0034] Please refer to the following: Figure 4 - Figure 6As shown, a fixing clamp 28 is fixedly connected to the rear of the square plate 11. A rotating rod 29 is fixedly connected to the rear of the fixing clamp 28. A connecting plate 20 is fixedly connected to the rear of the rotating rod 29. A receiving plate 21 is fixedly connected to the bottom position of the rear of the connecting plate 20. A driving assembly 22 is provided behind the lower surface of the receiving plate 21. The driving assembly 22 includes a connecting frame 23. A threaded ring 24 is fixedly connected to the lower surface of the connecting frame 23. Fixing posts 25 are fixedly connected to the left and right sides of the threaded ring 24. A limit frame 1 26 is fixedly connected to the rear of the fixing post 25. A limit frame 25 45 is fixedly connected to the front of the fixing post 25. A placement frame 27 is fixedly connected to the rear of the limit frame 1 26. A driving motor 28 is provided on the upper surface of the placement frame 27. A driving rod 39 is provided at the power output end of the driving motor 28. A connecting plate 30 is provided in front of the driving rod 3 29. A movable rod 31 is provided at the bottom position in front of the connecting plate 3 30. A rotating gear 32 is fixedly connected to the front of a 31, and the outer surface of the rotating gear 32 is threadedly connected to the inner surface of the threaded ring 24. A movable rod 33 is provided in front of the rotating gear 32, and a connecting plate 44 is provided in front of the movable rod 33. A movable rod 35 is provided at the top position in front of the connecting plate 44. A seasoning assembly 36 is provided in front of the movable rod 35. The seasoning assembly 36 includes a movable block 40, and the front of the movable rod 35 is connected to the rear of the movable block 40. Slider 39s are fixedly connected to both sides of the movable block 40. Both sliders 39s are movably connected to both sides of the inner wall of the fixed frame 37 through a sliding groove 38. A limiting frame 41 is fixedly connected to the front of the movable block 40. A limiting plate 42 is inserted into the inside of the limiting frame 41, and the left and right sides of the limiting plate 42 are fixedly connected to the inner side of the limiting frame 25. A connecting column 43 is fixedly connected to the front of the limiting frame 41, and a pusher plate 44 is fixedly connected to the front of the connecting column 43.

[0035] In the existing technology, when the conveyor belt of a mining conveyor is tensioned, the material being transported by the conveyor belt may be displaced, which may cause the material to fall or deviate from its designated path, which is not conducive to the transportation work.

[0036] When the auxiliary tensioning assembly 9 is tensioning, it is affected by the cylinder 4, the movable frame 2 6, the connecting plate 1 7, and the rotating rod 1 8. This causes the auxiliary tensioning assembly 9 on the lower surface of the square plate 11 and the driving assembly 22 and the seasoning assembly 36 on the lower surface of the receiving plate 21 to rotate. The operator can start the drive motor 2 28, which drives the connecting plate 3 30 and the movable rod 1 31 via the drive rod 3 29. This causes the rotating gear 32 to start rotating. The rotating gear 32 meshes with the internal thread of the threaded ring 24. As the rotating gear 32 rotates, it moves axially along the threaded trajectory of the threaded ring 24. Due to the restriction of the fixed column 25, the limiting frame 1 26, and the limiting frame 2 45, the rotating gear 32 can only translate in the set direction to avoid deviation. The movement of the rotating gear 32 is transmitted to the seasoning assembly 36 through the movable rod 2 33, the connecting plate 4 34, and the movable rod 3 35. The sliders 39 on both sides of the movable block 40 slide in the grooves 38 of the fixed frame 37 to ensure the smooth movement of the movable block 40. The movable block 40 drives the limiting frame 41, connecting column 43 and push plate 44 to move synchronously. Since the limiting plate 42 is inserted into the limiting frame 41, the push plate 44 moves. The push plate 44 can adjust the position of the material, thereby preventing the material from falling or deviating when the auxiliary tensioning component 9 is working.

[0037] The specific working process of this invention is as follows:

[0038] When the auxiliary tensioning assembly 9 is performing tensioning work, it is affected by the cylinder 4, the movable frame 6, the connecting plate 7, and the rotating rod 8. This causes the auxiliary tensioning assembly 9 on the lower surface of the square plate 11 and the driving assembly 22 and the seasoning assembly 36 on the lower surface of the receiving plate 21 to rotate, thus activating the cylinder 4. The power output end of the cylinder 4 pushes the driving rod 5 upward. The driving rod 5 drives the connecting plate 7 to rotate around the connection point through the movable frame 6, thereby pulling the rotating rod 8 and causing the auxiliary tensioning assembly 9 to rotate and move upward as a whole. Under the connection of the receiving rod 16, the tensioning roller 15 slightly lifts the conveyor belt upward, completing the initial tensioning. If the tension of the conveyor belt still does not reach the set value after the initial tensioning, the drive motor 13 starts. The drive motor 13 drives the tensioning roller 15 to rotate slightly through the drive rod 14.

[0039] Due to the action of cylinder 4, movable frame 2 6, connecting plate 1 7, and rotating rod 1 8, the working position of seasoning assembly 36 is consistent with the working position of auxiliary tensioning assembly 9. The operator can start drive motor 2 28 to drive connecting plate 3 30 and movable rod 1 31 through drive rod 3 29, thereby causing rotating gear 32 to start rotating. Rotating gear 32 meshes with the internal thread of threaded ring 24. As rotating gear 32 rotates, it moves axially along the threaded trajectory of threaded ring 24. Due to the restriction of fixed column 25, limit frame 1 26, and limit frame 2 45, rotating gear 32 can only translate in the set direction to avoid deviation. The movement of rotating gear 32 is transmitted to seasoning assembly 36 through movable rod 2 33, connecting plate 4 34, and movable rod 3 35. The sliders 39 on both sides of movable block 40 slide in the grooves 38 of fixed frame 37 to ensure smooth movement of movable block 40. The movable block 40 drives the limiting frame 41, connecting column 43 and push plate 44 to move synchronously. Since the limiting plate 42 is inserted into the limiting frame 41, the push plate 44 moves. The push plate 44 can adjust the position of the material, thereby preventing the material from falling or deviating when the auxiliary tensioning component 9 is working.

[0040] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. An automatic tensioning device for a mining belt conveyor, comprising a support frame (1), characterized in that, A load-bearing plate (2) is fixedly connected to the front of the support frame (1). Support columns (46) are fixedly connected to both the front and rear sides of the upper surface of the load-bearing plate (2). A cylinder (4) is provided in front of the upper surface of the load-bearing plate (2) through a movable frame (3). A drive rod (5) is provided at the power output end of the cylinder (4). A movable frame (6) is fixedly connected to the upper surface of the drive rod (5). A connecting plate (7) is movably connected to the rear of the movable frame (6). A rotating rod (8) is fixedly connected to the top position behind the connecting plate (7). An auxiliary tensioning component (9) is provided behind the rotating rod (8). The auxiliary tensioning assembly (9) includes a fixing clamp (10), a square plate (11) is fixedly connected to the rear of the fixing clamp (10), a fixing frame (12) is fixedly connected to the rear of the lower surface of the square plate (11), a drive motor (13) is provided on the inner wall of the fixing frame (12), a drive rod (14) is provided at the power output end of the drive motor (13), a tensioning roller (15) is movably connected to the front of the drive rod (14), and the front of the tensioning roller (15) is movably connected to the rear of the fixing plate (17) through a receiving rod (16).

2. The automatic tensioning device for a mining belt conveyor according to claim 1, characterized in that, A fixing clip 2 (18) is fixedly connected to the rear of the square plate (11), a rotating rod 2 (19) is fixedly connected to the rear of the fixing clip 2 (18), a connecting plate 2 (20) is fixedly connected to the rear of the rotating rod 2 (19), a receiving plate (21) is fixedly connected to the bottom position of the rear of the connecting plate 2 (20), and a driving assembly (22) is provided behind the lower surface of the receiving plate (21).

3. The automatic tensioning device for a mining belt conveyor according to claim 2, characterized in that, The drive assembly (22) includes a connecting frame (23), a threaded ring (24) is fixedly connected to the lower surface of the connecting frame (23), a fixing post (25) is fixedly connected to the left and right sides of the threaded ring (24), a limit frame one (26) is fixedly connected to the rear of the fixing post (25), a limit frame two (45) is fixedly connected to the front of the fixing post (25), a placement frame (27) is fixedly connected to the rear of the limit frame one (26), and a drive motor two (28) is provided on the upper surface of the placement frame (27).

4. The automatic tensioning device for a mining belt conveyor according to claim 3, characterized in that, The power output end of the second drive motor (28) is provided with a third drive rod (29). A third connecting plate (30) is provided in front of the third drive rod (29). A first movable rod (31) is provided at the bottom position in front of the third connecting plate (30). A rotating gear (32) is fixedly connected in front of the first movable rod (31), and the outer surface of the rotating gear (32) is connected to the internal thread of the threaded ring (24).

5. An automatic tensioning device for a mining belt conveyor according to claim 4, characterized in that, A movable rod two (33) is provided in front of the rotating gear (32), a connecting plate four (34) is provided in front of the movable rod two (33), a movable rod three (35) is provided at the top position in front of the connecting plate four (34), and a seasoning component (36) is provided in front of the movable rod three (35).

6. The automatic tensioning device for a mining belt conveyor according to claim 5, characterized in that, The seasoning assembly (36) includes a movable block (40), and the front of the movable rod three (35) is connected to the rear of the movable block (40). Slider (39) is fixedly connected to both the left and right sides of the movable block (40), and both sliders (39) are movably connected to both sides of the inner wall of the fixed frame (37) through the slide groove (38).

7. An automatic tensioning device for a mining belt conveyor according to claim 6, characterized in that, A limiting frame (41) is fixedly connected to the front of the movable block (40). A limiting plate (42) is inserted inside the limiting frame (41), and the left and right sides of the limiting plate (42) are fixedly connected to the inner side of the limiting frame (45). A connecting column (43) is fixedly connected to the front of the limiting frame (41), and a pusher plate (44) is fixedly connected to the front of the connecting column (43).

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