A bidirectional reversible conveyor belt tensioning mechanism

Abstract

This application belongs to the field of conveyor belt technology and discloses a bidirectional reversible conveyor belt tensioning mechanism. It includes two side plates mounted on the conveyor belt frame, a mounting plate horizontally positioned between the two side plates, and sliding plates horizontally slidably mounted on the side plates. A tensioning roller, rotatably positioned between the two sliding plates and in contact with the inner surface of the conveyor belt body, is also provided between the two sliding plates. A connecting plate is also provided between the two sliding plates, and a movable plate slidably connected to the mounting plate is provided on the connecting plate. A threaded rod is horizontally positioned on the side of the movable plate away from the tensioning roller, and a control nut is helically mounted on the threaded rod. A mounting seat is provided on the mounting seat, and a worm gear fixedly connected to the control nut is rotatably mounted on the mounting seat. Two spaced-apart vertical plates are provided on the connecting plate, and a worm gear rotatably mounted on both vertical plates, cooperating with the worm gear. Rotating the worm gear drives the worm gear and the control nut to rotate, thereby moving the threaded rod, the movable plate, the connecting plate, and the sliding plate, thus adjusting the position of the tensioning roller.

Description

Technical Field

[0001] This utility model relates to the field of conveyor belt technology, and in particular to a bidirectional reversible conveyor belt tensioning mechanism. Background Technology

[0002] A conveyor belt is a mechanical device that transports materials through a continuously moving strip of material. It typically consists of a frame, the conveyor belt itself, support rollers, and a drive unit, and is widely used in industrial automation, express logistics, and other fields. A bidirectional reversible conveyor belt is a type of conveying equipment with bidirectional transport capabilities, allowing for flexible changes in the belt's direction of travel as needed.

[0003] Chinese utility model patent CN220055171U discloses a conveyor belt tension adjustment device, including a conveyor belt and support assemblies disposed on both sides of a driven roller. Each support assembly includes a support plate with a movable groove. An adjustment assembly is slidably connected within the movable groove and rotatably connected to both sides of the driven roller. The upper end of the movable groove passes through the support plate. The adjustment assembly includes limiting blocks rotatably mounted on both sides of the driven roller. A limiting disc is fixed to the outer end of each limiting block and is located outside the support plate. The limiting blocks slide within the movable groove. A connecting block is fixed to the upper part of the movable groove and has a threaded hole. A screw is threaded into the threaded hole. Rotating the screw moves the connecting block, adjusting the position of the driven roller and thus adjusting the tension of the conveyor belt.

[0004] Regarding the aforementioned technologies, the inventors believe that the following drawbacks exist: In actual use, the device requires adjusting the two connecting blocks separately by rotating the two threaded rods to adjust the position of the driven roller. The process of operating the dual threaded rods independently is cumbersome, requiring adjustment and calibration of the positions on both sides, resulting in low operating efficiency. Utility Model Content

[0005] To solve the above problems, this utility model provides a bidirectional reversible conveyor belt tensioning mechanism.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a bidirectional reversible conveyor belt tensioning mechanism, comprising two side plates mounted on the frame of the conveyor belt, a mounting plate horizontally disposed between the two side plates, a sliding plate horizontally slidably disposed on the side plates, a tensioning roller rotatably disposed between the two sliding plates and in contact with the inner surface of the conveyor belt body, a connecting plate disposed between the two sliding plates, a movable plate slidably connected to the mounting plate disposed on the connecting plate, a threaded rod horizontally disposed on the side of the movable plate away from the tensioning roller, a control nut helically disposed on the threaded rod, a mounting seat disposed on the mounting seat, a worm gear rotatably disposed on the mounting seat and fixedly connected to the control nut, two spaced vertical plates disposed on the connecting plate, a worm gear rotatably disposed on both vertical plates, the worm gear cooperating with the worm gear.

[0007] By adopting the above technical solution, a side plate, mounting plate, sliding plate, tension roller, control nut, worm gear, and worm are set up. Rotating the worm drives the worm gear and control nut to rotate. Since the threaded rod cannot rotate, when the control nut rotates, the threaded rod moves horizontally relative to the control nut, thereby moving the moving plate, connecting plate, and sliding plate, thus adjusting the position of the tension roller and adjusting the tension of the transmission belt. The operation can be completed by rotating only one worm, which is simple, convenient, ensures smooth movement of the tension roller, and has high operating efficiency.

[0008] Furthermore, the connecting plate has two horizontally spaced sliding rods on the side away from the tension roller, and the moving plate has two sliding holes that are slidably connected to the corresponding sliding rods. A compression spring is sleeved on the rod between the connecting plate and the moving plate.

[0009] By adopting the above technical solution, a slide bar and a compression spring are set. The compression spring is located between the connecting plate and the moving plate. After adjusting the position of the tension roller, the compression spring is slightly compressed. The elastic characteristics of the spring can keep the tension of the tension roller constant within a certain range and is not affected by the slight deformation of the transmission belt.

[0010] Furthermore, a screw rod is provided at the end of the slide bar away from the tension roller, and an adjusting nut is helically mounted on the screw rod, with one side of the adjusting nut in contact with the moving plate.

[0011] By adopting the above technical solution, a screw rod and an adjusting nut are set. Rotating the adjusting nut changes the position of the adjusting nut on the threaded rod, thereby adjusting the distance between the moving plate and the connecting plate, and thus changing the pre-compression force of the compression spring.

[0012] Furthermore, the connecting plate is provided with fixed plates on both sides, and each of the two fixed plates is provided with a horizontal slide rail on an adjacent side. The two sides of the movable plate are slidably connected to the corresponding slide rails by sliders.

[0013] By adopting the above technical solution, a fixed plate and a slide rail are set up to improve the stability of the moving plate when sliding relative to the connecting plate, and to ensure that the moving plate and the connecting plate remain parallel.

[0014] Furthermore, the mounting base has a through hole in the middle for the threaded rod to pass through, and a mounting tube arranged concentrically with the through hole is provided on one side of the mounting base. The worm gear has a round hole, and the worm gear is fixedly sleeved on the mounting tube through the round hole.

[0015] By adopting the above technical solution, through holes, mounting tubes, and round holes are provided to ensure the stability of the worm gear and control nut rotation.

[0016] Furthermore, two connecting blocks are spaced apart on the mounting plate, and a guide hole is horizontally opened on the connecting block. A guide rod connected to the moving plate is slidably disposed in the guide hole.

[0017] By adopting the above technical solution, and setting up connecting blocks, guide holes, and guide rods, the stability of the sliding plate relative to the mounting plate is ensured.

[0018] Furthermore, the side plate is provided with a sliding groove, and the sliding plate and the fixed plate are slidably connected to the corresponding sliding groove.

[0019] Furthermore, one end of the worm gear passes through the side plate and is provided with a handle.

[0020] In summary, this utility model has the following beneficial effects: This application includes a side plate, mounting plate, sliding plate, tension roller, control nut, worm gear, and worm. Rotating the worm drives the worm gear and control nut to rotate. Since the threaded rod cannot rotate, when the control nut rotates, the threaded rod moves horizontally relative to the control nut, thereby moving the moving plate, connecting plate, and sliding plate, thus adjusting the position of the tension roller and adjusting the tension of the transmission belt. The operation can be completed by rotating only one worm gear, which is simple, convenient, and ensures smooth movement of the tension roller, resulting in high operational efficiency. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the installation structure of an embodiment of this utility model;

[0022] Figure 2 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0023] Figure 3 This is a schematic diagram of the tension roller and connecting plate in an embodiment of this utility model;

[0024] Figure 4 yes Figure 3 Enlarged view of part A;

[0025] Figure 5 This is an exploded view of the control nut, worm gear, and mounting base of an embodiment of this utility model.

[0026] In the diagram: 10. Side plate; 11. Sliding plate; 12. Tensioning roller; 13. Slide groove; 20. Connecting plate; 21. Moving plate; 22. Threaded rod; 23. Control nut; 30. Mounting plate; 31. Mounting base; 32. Worm gear; 33. Vertical plate; 34. Worm; 35. Mounting tube; 36. Handle; 40. Slide rod; 41. Compression spring; 42. Screw rod; 43. Adjusting nut; 50. Fixing plate; 51. Slide rail; 60. Connecting block; 61. Guide rod. Detailed Implementation

[0027] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0028] like Figure 1-5 As shown in the illustration, this application discloses a bidirectional reversible conveyor belt tensioning mechanism, including side plates 10, sliding plates 11, and tension rollers 12. There are two side plates 10, horizontally spaced apart on the conveyor belt frame, with a mounting plate 30 horizontally positioned between them. There are also two sliding plates 11, each sliding horizontally on an adjacent sidewall of one of the side plates 10. The tension rollers 12 are horizontally rotatably positioned between the two sliding plates 11, contacting the inner surface of the conveyor belt body. A connecting plate 20 is also provided between the two sliding plates 11, and a movable plate 21, slidably connected to the mounting plate 30, is mounted on the connecting plate 20. The movable plate 21 is parallel to the connecting plate 20. A threaded rod 22 is horizontally arranged on the side of the movable plate 21 away from the tension roller 12. A control nut 23 is helically mounted on the threaded rod 22. Since the threaded rod 22 cannot rotate, when the control nut 23 rotates, the threaded rod 22 moves horizontally relative to the control nut 23, thereby driving the movable plate 21, the connecting plate 20, and the sliding plate 11 to move, thus adjusting the position of the tension roller 12 and adjusting the tension of the transmission belt. A mounting base 31 is provided on the mounting plate 30. A worm gear 32, which is fixedly connected to the control nut 23, is rotatably mounted on the mounting base 31. The control nut 23 and the worm gear 32 are arranged concentrically.

[0029] The connecting plate 20 has two spaced-apart vertical plates 33, and a worm gear 34 is rotatably mounted on both vertical plates 33. Specifically, a rotating hole is horizontally opened on the vertical plate 33, and the worm gear 34 is rotatably connected to the rotating hole. The worm gear 34 cooperates with the worm wheel 32. By rotating the worm gear 34, the worm wheel 32 is driven to rotate, and the control nut 23 is rotated. The operation can be completed by rotating only one worm gear 34, which is simple and convenient, ensures the smooth movement of the tension roller 12, and has high operating efficiency.

[0030] Specifically, two spaced-apart slide rods 40 are horizontally arranged on the side of the connecting plate 20 away from the tension roller 12. Two sliding holes are formed on the movable plate 21, and these holes are slidably connected to the corresponding slide rods 40. A compression spring 41 is fitted onto the slide rod 40 located between the connecting plate 20 and the movable plate 21. One end of the compression spring 41 is connected to the connecting plate 20, and the other end is connected to the movable plate 21. The compression spring 41 is located between the connecting plate 20 and the movable plate 21. After adjusting the position of the tension roller 12 to tension the conveyor belt, the movable plate 21 is moved a certain distance to ensure that the compression spring 41 is slightly compressed. The elastic characteristics of the spring allow the tension force of the tension roller 12 to remain constant within a certain range, unaffected by slight deformation of the conveyor belt. A screw rod 42 is provided at the end of the slide rod 40 away from the tension roller 12. The diameter of the screw rod 42 is the same as the diameter of the slide rod 40. An adjusting nut 43 is helically mounted on the screw rod 42. One side of the adjusting nut 43 contacts the moving plate 21. Changing the position of the adjusting nut 43 on the threaded rod 22 adjusts the distance between the moving plate 21 and the connecting plate 20, thereby changing the pre-compression force of the compression spring 41. Fixed plates 50 are provided on both sides of the connecting plate 20. A slide rail 51 is horizontally provided on each adjacent side of the two fixed plates 50. The two sides of the moving plate 21 are slidably connected to the corresponding slide rail 51 by sliders, which improves the stability of the moving plate 21 when sliding relative to the connecting plate 20 and ensures that the moving plate 21 and the connecting plate 20 remain parallel.

[0031] During setup, a through hole for the threaded rod 22 is provided in the middle of the mounting base 31. The diameter of the through hole is larger than the diameter of the threaded rod 22. A mounting tube 35 is provided on one side of the mounting base 31, concentrically arranged with the through hole. The inner diameter of the mounting tube 35 is the same as the diameter of the through hole. A circular hole is provided on the worm gear 32, and the worm gear 32 is fixedly sleeved on the mounting tube 35 through the circular hole to ensure the stability of the rotation of the worm gear 32 and the control nut 23. One end of the worm 34 passes through the side plate 10 and is provided with a handle 36 to facilitate the rotation of the worm 34 by the operator.

[0032] In a specific configuration, two connecting blocks 60 are spaced apart on the mounting plate 30. Each connecting block 60 has a horizontally opening guide hole, within which a guide rod 61, connected to the moving plate 21, is slidably mounted to ensure the stability of the moving plate 21 relative to the mounting plate 30. A sliding groove 13 is provided on the side plate 10, and the sliding plate 11 and the fixed plate 50 are slidably connected to their respective sliding grooves 13, ensuring the stability of the sliding of the sliding plate 11, the fixed plate 50, and the tension roller 12.

[0033] The operating principle of the bidirectional reversible conveyor belt tensioning mechanism in this embodiment is as follows: rotating the handle 36 drives the worm gear 34 to rotate, which in turn drives the worm wheel 32 and the control nut 23 to rotate, thereby causing the threaded rod 22, the moving plate 21, the connecting plate 20, and the sliding plate 11 to move, thus adjusting the position of the tensioning roller 12. After the tensioning roller 12 tensions the conveyor belt, the moving plate 21 is further adjusted to move a certain distance, so that the compression spring 41 is slightly compressed to ensure stable tension.

[0034] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A bidirectional reversible conveyor belt tensioning mechanism, characterized in that: The system includes two side plates (10) mounted on the frame of the conveyor belt, a mounting plate (30) horizontally disposed between the two side plates (10), a sliding plate (11) horizontally slidably disposed on the side plates (10), a tension roller (12) rotatably disposed between the two sliding plates (11) and in contact with the inner side of the conveyor belt body, and a connecting plate (20) disposed between the two sliding plates (11), a movable plate (21) slidably connected to the mounting plate (30) on the connecting plate (20), and the movable plate (21) being far from... A threaded rod (22) is horizontally arranged on one side away from the tension roller (12). A control nut (23) is helically mounted on the threaded rod (22). A mounting base (31) is provided on the mounting plate (30). A worm gear (32) fixedly connected to the control nut (23) is rotatably mounted on the mounting base (31). Two spaced vertical plates (33) are provided on the connecting plate (20). A worm (34) is rotatably mounted on both vertical plates (33). The worm (34) cooperates with the worm gear (32).

2. The bidirectional reversible conveyor belt tensioning mechanism according to claim 1, characterized in that: The connecting plate (20) has two horizontally spaced slide rods (40) on the side away from the tension roller (12). The moving plate (21) has two sliding holes, which are slidably connected to the corresponding slide rods (40). A compression spring (41) is sleeved on the slide rod (40) located between the connecting plate (20) and the moving plate (21).

3. The bidirectional reversible conveyor belt tensioning mechanism according to claim 2, characterized in that: A screw rod (42) is provided at the end of the slide rod (40) away from the tension roller (12). An adjusting nut (43) is provided on the screw rod (42) and rotates in a spiral manner. One side of the adjusting nut (43) is in contact with the moving plate (21).

4. The bidirectional reversible conveyor belt tensioning mechanism according to claim 3, characterized in that: The connecting plate (20) is provided with fixing plates (50) on both sides. Each of the two fixing plates (50) is provided with a horizontal slide rail (51) on one side of each adjacent side. The moving plate (21) is slidably connected to the corresponding slide rail (51) on both sides by a slider.

5. The bidirectional reversible conveyor belt tensioning mechanism according to claim 1, characterized in that: The mounting base (31) has a through hole in the middle for the threaded rod (22) to pass through. The mounting base (31) has a mounting tube (35) arranged concentrically with the through hole on one side. The worm gear (32) has a round hole and is fixedly sleeved on the mounting tube (35) through the round hole.

6. The bidirectional reversible conveyor belt tensioning mechanism according to claim 1, characterized in that: Two connecting blocks (60) are spaced apart on the mounting plate (30). A guide hole is horizontally opened on the connecting block (60), and a guide rod (61) connected to the moving plate (21) is slidably arranged in the guide hole.

7. A bidirectional reversible conveyor belt tensioning mechanism according to claim 4, characterized in that: The side plate (10) is provided with a sliding groove (13), and the sliding plate (11) and the fixed plate (50) are slidably connected to the corresponding sliding groove (13).

8. The bidirectional reversible conveyor belt tensioning mechanism according to claim 1, characterized in that: One end of the worm (34) passes through the side plate (10) and is provided with a handle (36).

Images