Tensioning belt pulley

Abstract

The utility model relates to the technical field of belt pulley transmission, and discloses a tensioning belt pulley which comprises a fixing plate, a threaded rod is rotatably connected to the interior of the fixing plate, a handle is fixedly connected to the outer wall of the threaded rod, a push block is in threaded connection to the outer wall of the threaded rod, and a sliding column is fixedly connected to the outer wall of the push block. A first rotating shaft is fixedly connected to the interior of the pushing block, a rotating plate is rotatably connected to the outer wall of the first rotating shaft, a second rotating shaft is rotatably connected to the interior of the rotating plate, a moving table is fixedly connected to the outer wall of the second rotating shaft, and a supporting assembly is arranged on the lower surface of the fixing plate and used for auxiliary supporting. According to the belt pulley tensioning device, the threaded rod is driven to rotate by rotating the handle, the push block is driven to move at the same time, then the rotating plate is driven to rotate, meanwhile, the rotating plate is driven to rotate on the outer wall of the rotating shaft, the moving table is driven to move, meanwhile, the effect of displacing the driving wheel is achieved, and then the effect of effectively tensioning the belt pulley is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of pulley drive, in particular to a tensioning pulley. Background Technique

[0002] A pulley is a mechanical component used in a transmission system. It is usually used in conjunction with a belt to transfer power from one shaft to another. It drives another component to operate through the friction of the belt and is widely used in fields such as automobiles and machinery. Pulleys are usually made of metal or plastic and have different sizes and shapes to adapt to various driving requirements. In order to ensure that the belt system can effectively transfer power, avoid belt slippage or slack, thereby improving transmission efficiency and extending service life. A tensioning pulley is required.

[0003] A tensioning pulley is a pulley that can be used when a pulley is transmitting power. In the existing technology, the positions of two pulleys are usually fixed. When tensioning the belt, it usually needs to be disassembled, which is rather cumbersome, and there is a situation where the belt cannot be effectively tensioned quickly. Content of the Utility Model

[0004] In order to make up for the above deficiencies, the utility model provides a tensioning pulley, aiming to improve the problem that the belt cannot be effectively tensioned quickly.

[0005] To achieve the above object, the utility model provides the following technical solution: A tensioning pulley includes a fixing plate. A threaded rod is rotatably connected inside the fixing plate. A handle is fixedly connected to the outer wall of the threaded rod. A pushing block is threadedly connected to the outer wall of the threaded rod. A sliding column is fixedly connected to the outer wall of the pushing block. A first rotating shaft is fixedly connected inside the pushing block. A rotating plate is rotatably connected to the outer wall of the first rotating shaft. A second rotating shaft is rotatably connected inside the rotating plate. A moving table is fixedly connected to the outer wall of the second rotating shaft. A rotating shaft is fixedly connected inside the moving table. A rotating plate is rotatably connected to the outer wall of the rotating shaft. A connecting shaft is rotatably connected inside the rotating plate. The outer wall of the connecting shaft is fixedly connected inside the fixing plate. A supporting component is arranged on the lower surface of the fixing plate, and the supporting component is used for auxiliary support.

[0006] Preferably, the supporting component includes a bottom plate. The upper surface of the bottom plate is fixedly connected to the lower surface of the fixing plate. A supporting plate is fixedly connected to the upper surface of the bottom plate. An arc-shaped groove is arranged inside the bottom plate.

[0007] Preferably, a motor is fixedly connected to the upper surface of the moving table. A first rotating column is fixedly arranged at the output end of the motor. The outer wall of the first rotating column is rotatably connected inside the supporting plate.

[0008] Preferably, the outer wall of the first rotating column is fixedly connected with a driving wheel, a belt body is arranged on the outer wall of the driving wheel, and a driven wheel is arranged on the inner wall of the belt body.

[0009] Preferably, a second rotating column is rotatably connected inside the support plate, and a positioning groove is arranged inside the second rotating column.

[0010] Preferably, one end of a spring is fixedly connected inside the second rotating column, and the other end of the spring is fixedly connected with a clamping column.

[0011] Preferably, the outer wall of the clamping column is fixedly connected with a connecting plate, the outer wall of the connecting plate is fixedly connected with a ball, a fixed shaft is rotatably connected inside the connecting plate, and the outer wall of the fixed shaft is fixedly connected inside the second rotating column.

[0012] Preferably, the outer wall of the driven wheel is fixedly connected with a clamping block, the outer wall of the driven wheel is fixedly connected with a positioning column, and the outer wall of the positioning column is slidably connected inside the positioning groove.

[0013] The utility model has the following beneficial effects:

[0014] 1. In the utility model, by rotating the handle to drive the threaded rod to rotate, while the threaded rod rotates, it drives the push block to move, and then drives the rotating plate to rotate on the first rotating shaft, and at the same time drives the rotating plate to rotate on the outer wall of the rotating shaft, and then drives the moving table to move, and at the same time achieves the effect of displacing the driving wheel, and further achieves the effect of effectively tensioning the belt pulley.

[0015] 2. In the utility model, the driven wheel drives the clamping block to slide inside the second rotating column, and then drives the ball to slide, and at the same time drives the connecting plate to rotate, and then drives the clamping column to slide. Through the rebounding action of the spring, it drives the ball to engage and position the clamping block, achieving the effect of quickly installing the driven wheel, so as to replace driven wheels of different sizes and be applicable to different working contents. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional view of a belt pulley tensioner proposed by the utility model;

[0017] Figure 2 is a partial structural schematic diagram of the support plate of a belt pulley tensioner proposed by the utility model;

[0018] Figure 3 is a partial structural schematic diagram of the threaded rod of a belt pulley tensioner proposed by the utility model;

[0019] Figure 4 is a partial structural schematic diagram of the clamping block of a belt pulley tensioner proposed by the utility model;

[0020] Figure 5 A schematic cross-sectional view of the internal structure of the second rotating column of a tension pulley proposed by the present utility model.

[0021] Legend:

[0022] 1. Fixed plate; 2. Threaded rod; 3. Handle; 4. Push block; 5. First rotating shaft; 6. Rotating plate; 7. Second rotating shaft; 8. Moving table; 9. Rotating shaft; 10. Rotating plate; 11. Connecting shaft; 12. Bottom plate; 13. Support plate; 14. Arc groove; 15. Motor; 16. First rotating column; 17. Driving wheel; 18. Slide column; 19. Belt body; 20. Second rotating column; 21. Driven wheel; 22. Positioning groove; 23. Positioning column; 24. Clamping block; 25. Spring; 26. Clamping column; 27. Fixed shaft; 28. Connecting plate; 29. Ball. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the specification drawings of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Referring to Figures 1 - 3 , an embodiment provided by the present utility model: A tension pulley includes a fixed plate 1. A threaded rod 2 is rotatably connected inside the fixed plate 1. A handle 3 is fixedly connected to the outer wall of the threaded rod 2. A push block 4 is threadedly connected to the outer wall of the threaded rod 2. A slide column 18 is fixedly connected to the outer wall of the push block 4. A first rotating shaft 5 is fixedly connected inside the push block 4. A rotating plate 6 is rotatably connected to the outer wall of the first rotating shaft 5. A second rotating shaft 7 is rotatably connected inside the rotating plate 6. A moving table 8 is fixedly connected to the outer wall of the second rotating shaft 7. A rotating shaft 9 is fixedly connected inside the moving table 8. A rotating plate 10 is rotatably connected to the outer wall of the rotating shaft 9. A connecting shaft 11 is rotatably connected inside the rotating plate 10. The outer wall of the connecting shaft 11 is fixedly connected inside the fixed plate 1. A support assembly is provided on the lower surface of the fixed plate 1, and the support assembly is used for auxiliary support.

[0025] Specifically, the fixing plate 1 supports the threaded rod 2. The handle 3 drives the threaded rod 2 to rotate. The threaded rod 2 drives the push block 4 to move. The push block 4 drives the sliding column 18 to slide. While the push block 4 is moving, the first rotating shaft 5 can drive the rotating plate 6 to rotate. The rotating plate 6 drives the second rotating shaft 7 to move. The second rotating shaft 7 drives the moving table 8 to move. The moving table 8 drives the rotating shaft 9 to move. The rotating shaft 9 drives the rotating plate 10 to rotate. The rotating plate 10 drives the connecting shaft 11 to move. The fixing plate 1 supports the connecting shaft 11, achieving the effect of tensioning the pulley.

[0026] Refer to Figure 1 and Figure 2 As shown in FIGS. 7 and 8, the support assembly includes a bottom plate 12. The upper surface of the bottom plate 12 is fixedly connected to the lower surface of the fixing plate 1. A support plate 13 is fixedly connected to the upper surface of the bottom plate 12. An arc-shaped groove 14 is provided inside the bottom plate 12. A motor 15 is fixedly connected to the upper surface of the moving table 8. The output end of the motor 15 is fixedly provided with a first rotating column 16. The outer wall of the first rotating column 16 is rotatably connected inside the support plate 13. A driving wheel 17 is fixedly connected to the outer wall of the first rotating column 16. A belt body 19 is provided on the outer wall of the driving wheel 17. A driven wheel 21 is provided on the inner wall of the belt body 19.

[0027] Specifically, the bottom plate 12 fixedly supports the fixing plate 1. The bottom plate 12 fixedly supports the support plate 13. The arc-shaped groove 14 provided inside the bottom plate 12 serves as a limiting function. The moving table 8 fixedly supports the motor 15. The motor 15 drives the first rotating column 16 to rotate. The first rotating column 16 drives the driving wheel 17 to rotate. The driving wheel 17 drives the belt body 19 to rotate. The belt body 19 drives the driven wheel 21 to rotate, achieving the effect of driving the pulley to rotate.

[0028] Refer to Figure 4 and Figure 5 As shown in FIGS. 9 and 10, a second rotating column 20 is rotatably connected inside the support plate 13. A positioning groove 22 is provided inside the second rotating column 20. One end of a spring 25 is fixedly connected inside the second rotating column 20. The other end of the spring 25 is fixedly connected to a clamping column 26. A connecting plate 28 is fixedly connected to the outer wall of the clamping column 26. A ball 29 is fixedly connected to the outer wall of the connecting plate 28. A fixing shaft 27 is rotatably connected inside the connecting plate 28. The outer wall of the fixing shaft 27 is fixedly connected inside the second rotating column 20. A clamping block 24 is fixedly connected to the outer wall of the driven wheel 21. A positioning column 23 is fixedly connected to the outer wall of the driven wheel 21. The outer wall of the positioning column 23 is slidably connected inside the positioning groove 22.

[0029] Specifically, the support plate 13 plays a role in supporting the second rotating column 20. A positioning groove 22 is provided inside the second rotating column 20 for limiting. The driven wheel 21 drives the sliding of the clamping block 24 and the sliding of the positioning column 23. The positioning groove 22 plays a role in limiting the positioning column 23. The clamping block 24 drives the sliding of the ball 29, the ball 29 drives the rotation of the connecting plate 28, the connecting plate 28 drives the sliding of the clamping column 26, and the clamping column 26 drives the compression of the spring 25. The spring 25 plays a role in rebounding, achieving the effect of quickly installing the driven wheel 21.

[0030] Working principle: When the pulley needs to be used, rotate the handle 3 to drive the threaded rod 2 to rotate inside the fixing plate 1, thereby driving the movement of the push block 4. While the push block 4 is moving, it drives the sliding of the sliding column 18 inside the support plate 13 and simultaneously drives the rotation of the rotating plate 6 on the outer walls of the second rotating shaft 7 and the first rotating shaft 5. While the rotating plate 6 is rotating, it can drive the rotation of the rotating plate 10 on the outer walls of the rotating shaft 9 and the connecting shaft 11, thereby driving the movement of the moving table 8. When the moving table 8 is moving, it drives the movement of the motor 15 and simultaneously drives the sliding of the first rotating column 16 on the inner wall of the arc-shaped groove 14, thereby achieving the effect of tensioning the driving wheel 17. By starting the motor 15 to drive the rotation of the first rotating column 16, the driving wheel 17 and the belt body 19 are driven to rotate, and at the same time, the second rotating column 20 is driven to rotate, thereby achieving the effect of driving the pulley. When the driven wheel 21 needs to be replaced, drive the positioning column 23 to slide inside the positioning groove 22, thereby driving the clamping block 24 to slide on the outer wall of the ball 29 and simultaneously driving the rotation of the connecting plate 28 on the outer wall of the fixed shaft 27, thereby driving the movement of the clamping column 26 and simultaneously driving the compression of the spring 25. Through the rebounding effect of the spring 25, the effect of clamping the clamping block 24 is achieved. This pulley can not only be effectively tensioned but also achieve the effect of quickly replacing the driven wheel 21 to adapt to pulleys of different sizes.

[0031] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A tension pulley, comprising a fixing plate (1), characterized in that: Inside the fixed plate (1), a threaded rod (2) is rotatably connected. A handle (3) is fixedly connected to the outer wall of the threaded rod (2). A push block (4) is threadedly connected to the outer wall of the threaded rod (2). A sliding column (18) is fixedly connected to the outer wall of the push block (4). A first rotating shaft (5) is fixedly connected to the inside of the push block (4). A rotating plate (6) is rotatably connected to the outer wall of the first rotating shaft (5). A second rotating shaft (7) is rotatably connected to the inside of the rotating plate (6). A moving platform (8) is fixedly connected to the outer wall of the second rotating shaft (7). A rotating shaft (9) is fixedly connected to the inside of the moving platform (8). A rotating plate (10) is rotatably connected to the outer wall of the rotating shaft (9). A connecting shaft (11) is rotatably connected to the inside of the rotating plate (10). The outer wall of the connecting shaft (11) is fixedly connected inside the fixed plate (1). A support assembly is provided on the lower surface of the fixed plate (1), and the support assembly is used for auxiliary support.

2. The tension pulley according to claim 1, wherein: The support assembly includes a bottom plate (12). The upper surface of the bottom plate (12) is fixedly connected to the lower surface of the fixed plate (1). A support plate (13) is fixedly connected to the upper surface of the bottom plate (12). An arc-shaped groove (14) is provided inside the bottom plate (12).

3. A tension pulley according to claim 1, characterized in that: A motor (15) is fixedly connected to the upper surface of the moving platform (8). A first rotating column (16) is fixedly provided at the output end of the motor (15). The outer wall of the first rotating column (16) is rotatably connected inside the support plate (13).

4. A tension pulley according to claim 3, characterized in that: A driving wheel (17) is fixedly connected to the outer wall of the first rotating column (16). A belt body (19) is provided on the outer wall of the driving wheel (17). A driven wheel (21) is provided on the inner wall of the belt body (19).

5. A tension pulley according to claim 2, characterized in that: A second rotating column (20) is rotatably connected inside the support plate (13). A positioning groove (22) is provided inside the second rotating column (20).

6. The tension pulley according to claim 5, wherein: One end of a spring (25) is fixedly connected to the inside of the second rotating column (20). The other end of the spring (25) is fixedly connected to a clamping column (26).

7. A tension pulley according to claim 6, characterized in that: A connecting plate (28) is fixedly connected to the outer wall of the clamping column (26). A ball (29) is fixedly connected to the outer wall of the connecting plate (28). A fixed shaft (27) is rotatably connected to the inside of the connecting plate (28). The outer wall of the fixed shaft (27) is fixedly connected to the inside of the second rotating column (20).

8. A tension pulley according to claim 4, characterized in that: A clamping block (24) is fixedly connected to the outer wall of the driven wheel (21). A positioning column (23) is fixedly connected to the outer wall of the driven wheel (21). The outer wall of the positioning column (23) is slidably connected inside the positioning groove (22).

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