Chain tensioning equipment capable of reducing chain abrasion

Abstract

The utility model relates to the technical field of chain tensioning equipment, in particular to chain tensioning equipment capable of reducing chain abrasion. The chain tensioning device capable of reducing chain abrasion comprises an installation frame, a rotating frame, a telescopic block, a limiting shaft and a first gear, the rotating frame is arranged on the installation frame in a rotating mode, the telescopic block is arranged on the rotating frame in a sliding mode, the limiting shaft is fixedly connected to the telescopic block, and the first gear is arranged on the limiting shaft in a rotating mode. The torsion spring restores to the original shape to enable the rotating frame to rotate, and in the rotating process of the rotating frame, the positioning frame limits the rotating angle of the rotating frame, so that it is ensured that the tension degree of the chain can be accurately adjusted, the chain can maintain the optimal tension under different working conditions, unnecessary abrasion is effectively reduced, and the service life of the chain is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of chain tensioning equipment, in particular to a chain tensioning equipment that can reduce chain wear. Background Art

[0002] A chain tensioning device is a device used to ensure that the chain maintains an appropriate tension in the drive system. Appropriate chain tension is crucial for ensuring the efficiency of the drive system, reducing wear, and extending the service life of the chain and related components. If the chain is too loose, it may cause tooth skipping or chain detachment; while if the chain is too tight, it will increase friction, accelerate component wear, and may cause additional stress on the mechanical equipment.

[0003] The patent with the patent authorization publication number CN211117411U discloses a chain tensioning and adjusting device, including a driving sprocket and a driven sprocket, with a chain assembled on the driving sprocket and the driven sprocket. A tensioning wheel is also assembled on the chain. The tensioning wheel is rotatably connected to a fixed shaft, and the fixed shaft is slidably connected to a bottom plate. A pushing device is arranged on the bottom plate. The pushing device includes a fixed sleeve, which is fixedly connected to the bottom plate, and a screw rod is slidably connected in the fixed sleeve through a sliding device. Although the design of this patent can fixedly install the bottom plate on the equipment where the chain drive device is located and push the tensioning wheel through the pushing device to tension the chain, which has a certain degree of convenience and applicability. However, in actual use, manually moving the pushing device to adjust the position of the tensioning wheel cannot ensure that the chain tension is accurately adjusted, which may cause the chain to not maintain the optimal tension under different working conditions, thereby increasing unnecessary wear and shortening the service life of the chain.

[0004] Therefore, a chain tensioning equipment that can reduce chain wear is needed. Summary of the Utility Model

[0005] In order to overcome the defect that in actual use of the existing patent, manually moving the pushing device to adjust the position of the tensioning wheel cannot ensure that the chain tension is accurately adjusted, which may cause the chain to not maintain the optimal tension under different working conditions, thereby increasing unnecessary wear and shortening the service life of the chain, the utility model provides a chain tensioning equipment that can reduce chain wear.

[0006] The technical solution is as follows: A chain tensioning device that can reduce chain wear, including a mounting frame, a rotating frame, a telescopic block, a limiting shaft, and a first gear. The mounting frame is rotatably provided with a rotating frame, the rotating frame is slidably provided with a telescopic block, the telescopic block is fixedly connected with a limiting shaft, and the limiting shaft is rotatably provided with a first gear. It also includes a torsion spring, a clamping plate, a clamping rod, a limiting disc, a positioning frame, a screw rod, and a nut. A torsion spring is sleeved on the mounting frame, and both ends of the torsion spring are respectively connected to the rotating frame and the mounting frame. A clamping plate is fixedly connected to the mounting frame, a clamping rod is slidably provided on the clamping plate, and the clamping rod is clamped into the rotating frame. A limiting disc is fixedly connected to the mounting frame, a positioning frame is rotatably provided on the mounting frame, a screw rod is threadedly provided on the limiting disc, and a nut is threadedly provided on the screw rod. The nut contacts the positioning frame.

[0007] Furthermore, the torsion spring is in a deformed state.

[0008] Furthermore, it also includes a rack, a second gear, and a clamping block. A rack is fixedly connected to the rotating frame, a second gear is rotatably provided on the telescopic block, the second gear meshes with the rack, and a clamping block is slidably provided on the second gear. The clamping block is clamped with the telescopic block.

[0009] Furthermore, it also includes a mounting block, a first pin, a second pin, and a third gear. A mounting block is slidably provided on the limiting shaft, a first pin is inserted into the limiting shaft, a second pin is inserted into the limiting shaft, and a third gear is rotatably provided at one end of the mounting block.

[0010] Furthermore, it also includes a protective sleeve. A protective sleeve is sleeved on the mounting frame, and the torsion spring is located inside the protective sleeve.

[0011] Furthermore, it also includes a gasket. A gasket is provided on the mounting frame.

[0012] Compared with the prior art, the present utility model provides a chain tensioning device that can reduce chain wear, and has the following beneficial effects: 1. The rotation of the rotating frame is caused by the torsion spring restoring its original shape. During the rotation of the rotating frame, the positioning frame limits the rotation angle of the rotating frame, thereby ensuring that the chain tension can be accurately adjusted, enabling the chain to maintain the best tension under different working conditions, effectively reducing unnecessary wear, and extending the service life of the chain.

[0013] 2. By pulling the telescopic block to the right and adjusting the length of the telescopic block according to actual needs to adapt to chains of different lengths, the use efficiency of the device is improved.

[0014] 3. By fixing the mounting block on the limiting shaft and sleeving two chains on the first gear and the third gear respectively, the device can simultaneously adjust the tension of the two chains. Description of the Drawings

[0015] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model.

[0016] Figure 2 This is a three-dimensional sectional structural schematic diagram of the mounting frame, rotating frame and telescopic block of the present utility model.

[0017] Figure 3 This is a three-dimensional sectional structural schematic diagram of the positioning frame, screw rod and nut of the present utility model.

[0018] Figure 4 This is a three-dimensional sectional structural schematic diagram of the mounting block, first pin and second pin of the present utility model.

[0019] Reference numerals in the drawings: 1, mounting frame; 2, rotating frame; 3, telescopic block; 4, limiting shaft; 5, first gear; 6, torsion spring; 7, clamping plate; 8, clamping rod; 9, limiting disc; 10, positioning frame; 11, screw rod; 12, nut; 13, rack; 14, second gear; 15, clamping block; 16, mounting block; 17, first pin; 18, second pin; 19, third gear; 20, protective sleeve; 21, gasket. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0021] Embodiment 1: A chain tensioning device capable of reducing chain wear, please refer to Figures 1 - 4, including a mounting frame 1, a rotating frame 2, a telescopic block 3, a limit shaft 4 and a first gear 5. The mounting frame 1 is rotatably provided with a rotating frame 2, the telescopic block 3 is slidably provided on the rotating frame 2, the limit shaft 4 is fixedly connected to the telescopic block 3, the first gear 5 is rotatably provided on the limit shaft 4, the mounting frame 1 is sleeved with a torsion spring 6, the two ends of the torsion spring 6 are respectively connected to the rotating frame 2 and the mounting frame 1, the torsion spring 6 is in a deformed state, the mounting frame 1 is fixedly connected with a card plate 7, the card plate 7 is slidably provided with a card rod 8, the card rod 8 is clamped into the rotating frame 2, and the card rod 8 is used to In the position of locking the rotating frame 2, a limiting disk 9 is fixedly connected to the mounting frame 1, a positioning frame 10 is rotatably arranged on the mounting frame 1, a screw 11 is threadedly arranged on the limiting disk 9, a nut 12 is threadedly arranged on the screw 11, the nut 12 is in contact with the positioning frame 10, a protective sleeve 20 is provided on the mounting frame 1, and the torsion spring 6 is located inside the protective sleeve 20 to protect the torsion spring 6 from the influence of the external environment and extend its service life. A gasket 21 is provided on the mounting frame 1 to increase the stability of the structure and reduce vibration to ensure that the equipment runs more smoothly.

[0022] When the equipment needs to be used, the mounting frame 1 is fixed to the equipment where the chain transmission device is located, and the chain is mounted on the first gear 5. When the tension of the chain needs to be adjusted, the clamping rod 8 is pulled forward to make it disengage from the rotating frame 2. At this time, the torsion spring 6 returns to its original shape, prompting the rotating frame 2 to start rotating. During the rotation of the rotating frame 2, the positioning frame 10 limits the rotation angle of the rotating frame 2 to prevent excessive rotation and prevent the chain from becoming too tight, thereby ensuring that the chain tension can be accurately adjusted so that the chain can maintain the optimal tension under different working conditions, thereby effectively reducing unnecessary wear and extending the service life of the chain. After completing the tension adjustment, the clamping rod 8 is reinserted into the clamping plate 7 to re-engage it with the rotating frame 2, thereby limiting the rotating frame 2 to prevent the rotating frame 2 from rotating accidentally.

[0023] Example 2: Based on Example 1, please refer to Figure 1 and Figure 3 A rack 13 is fixedly connected to the rotating frame 2, and a second gear 14 is rotatably provided on the telescopic block 3. When the telescopic block 3 moves, the second gear 14 will rotate accordingly, thereby accurately controlling the moving position of the telescopic block 3. The second gear 14 is meshed with the rack 13, and a clamping block 15 is slidably provided on the second gear 14, and the clamping block 15 is clamped with the telescopic block 3.

[0024] When it is necessary to apply to chains of different lengths, first pull the latch 15 forward to disengage it from the telescopic block 3, and then pull the telescopic block 3 to the right. According to actual needs, adjust the length of the telescopic block 3 to adapt to chains of different lengths, thereby improving the usage efficiency of the device. After extending the telescopic block 3 to the appropriate position, ensure that the second gear 14 meshes with the rack 13 again, and then limit the telescopic block 3 to prevent accidental movement during operation.

[0025] Please refer to Figure 4 , a mounting block 16 is slidably arranged on the limiting shaft 4, a first pin 17 is inserted into the limiting shaft 4, a second pin 18 is inserted into the limiting shaft 4, and a third gear 19 is rotatably arranged at one end of the mounting block 16.

[0026] When it is necessary to adjust the tension of two chains, first insert the mounting block 16 on the limiting shaft 4, and then insert the first pin 17 into the limiting shaft 4. After insertion, insert the first pin 17 into the limiting shaft 4 again to ensure that the first pin 17 is fully inserted and locked, thereby fixing the mounting block 16 on the limiting shaft 4. Finally, the two chains are respectively sleeved on the first gear 5 and the third gear 19, so that the device can adjust the tension of the two chains simultaneously.

[0027] The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly, and cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. A chain tensioning device that can reduce chain wear, comprising a mounting frame (1), a rotating frame (2), a telescopic block (3), a limiting shaft (4) and a first gear (5). The rotating frame (2) is rotatably arranged on the mounting frame (1). The telescopic block (3) is slidably arranged on the rotating frame (2). The limiting shaft (4) is fixedly connected to the telescopic block (3). The first gear (5) is rotatably arranged on the limiting shaft (4). It is characterized in that, It further includes a torsion spring (6), a clamping plate (7), a clamping rod (8), a limiting disc (9), a positioning frame (10), a screw rod (11) and a nut (12). A torsion spring (6) is sleeved on the mounting frame (1), and both ends of the torsion spring (6) are respectively connected to the rotating frame (2) and the mounting frame (1). A clamping plate (7) is fixedly connected to the mounting frame (1), and a clamping rod (8) is slidably arranged on the clamping plate (7). The clamping rod (8) is clamped into the rotating frame (2). A limiting disc (9) is fixedly connected to the mounting frame (1), a positioning frame (10) is rotatably arranged on the mounting frame (1), a screw rod (11) is threadedly arranged on the limiting disc (9), a nut (12) is threadedly arranged on the screw rod (11), and the nut (12) contacts the positioning frame (10).

2. A chain tensioning device capable of reducing chain wear according to claim 1, characterized in that, The torsion spring (6) is in a deformed state.

3. A chain tensioning device capable of reducing chain wear according to claim 2, characterized in that, It further includes a rack (13), a second gear (14) and a clamping block (15). A rack (13) is fixedly connected to the rotating frame (2), a second gear (14) is rotatably arranged on the telescopic block (3), the second gear (14) meshes with the rack (13), a clamping block (15) is slidably arranged on the second gear (14), and the clamping block (15) is clamped with the telescopic block (3).

4. A chain tensioning device capable of reducing chain wear according to claim 3, characterized in that, It further includes a mounting block (16), a first pin (17), a second pin (18) and a third gear (19). A mounting block (16) is slidably arranged on the limiting shaft (4), a first pin (17) is inserted into the limiting shaft (4), a second pin (18) is inserted into the limiting shaft (4), and a third gear (19) is rotatably arranged at one end of the mounting block (16).

5. A chain tensioning device capable of reducing chain wear according to claim 4, characterized in that, It further includes a protective sleeve (20). A protective sleeve (20) is sleeved on the mounting frame (1), and the torsion spring (6) is located inside the protective sleeve (20).

6. A chain tensioning device capable of reducing chain wear according to claim 5, characterized in that, It further includes a gasket (21). A gasket (21) is arranged on the mounting frame (1).

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