Hydraulic clamping spinning belt pulley
Through the hydraulically clamped spinning pulley, the piston is driven by hydraulic oil, so that the jacket and the shaft are evenly expanded and clamped, solving the problems of cumbersome installation and insufficient tightening force in the prior art, and achieving higher clamping force and stability.
Patent Information
- Application Number
- CN202422199276.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-09
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-09-09
AI Technical Summary
When installing between the existing spinning pulleys and the shaft, bolt clamping is adopted, which leads to cumbersome installation and disassembly, insufficient or excessive tightening force, which may lead to unstable clamping or damage, and stability is affected by loosening and wear of the bolts.
The spinning pulley that is hydraulically clamped is placed inside the main body of the spinning pulley through the mounting sleeve and the jacket, and the jacket is placed outside the shaft. It is connected to the mounting sleeve by hydraulic oil pipe. The hydraulic oil is poured into the oil cavity to push the piston to move, so that the jacket and the shaft are evenly expanded and clamped.
It achieves higher clamping force and consistency, ensures the stability of the spinning pulley body and shaft, simplifies the installation and disassembly process, and avoids the impact of bolt damage and loosening.
Smart Images
Figure CN222924893U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of spinning pulleys, and particularly relates to a spinning pulley with hydraulic clamping. Background Art
[0002] A spinning pulley, as the name implies, is a pulley made by spinning technology. It is a wheel used for belt drive and is usually made of materials such as cast iron, steel plate welding, or aluminum alloy. The main function of the spinning pulley is to transfer power to other components through the contact with the belt and utilize the frictional force to transfer rotational force and torque.
[0003] For the existing spinning pulleys, when installing them on the shaft, most of them use bolts directly to clamp the spinning pulley on the shaft. Such a clamping method is not only too cumbersome during the installation and disassembly process, but also the tightening force of the threaded clamping is insufficient, which may lead to insecure clamping. If the pre-tightening force is too large, it may damage the bolts or connectors. In addition, the stability of the bolt clamping may also be affected by factors such as bolt loosening and wear, thus affecting the normal use of the spinning pulley.
[0004] Therefore, it is necessary to invent a spinning pulley with hydraulic clamping to solve the above problems. Content of the Utility Model
[0005] The purpose of the utility model is to provide a spinning pulley with hydraulic clamping. By sleeving the installation sleeve and the clamping sleeve inside the spinning pulley main body, and then sleeving the clamping sleeve outside the shaft. At this time, the hydraulic oil pipe is connected to the installation sleeve, and then the hydraulic oil is poured into the oil inlet hole and enters the oil cavity, pushing the piston to move in the oil cavity, so that the clamping sleeve and the shaft expand and clamp evenly, thereby tightly joining them together, thus completing rapid hydraulic clamping. To solve the problem in the above background art that when installing the spinning pulley on the shaft, most of them use bolts directly to clamp the spinning pulley on the shaft. Such a clamping method is not only too cumbersome during the installation and disassembly process, but also the tightening force of the threaded clamping is insufficient, which may lead to insecure clamping. If the pre-tightening force is too large, it may damage the bolts or connectors. In addition, the stability of the bolt clamping may also be affected by factors such as bolt loosening and wear, thus affecting the normal use of the spinning pulley.
[0006] To achieve the above purpose, the utility model provides the following technical solution: A spinning pulley with hydraulic clamping, comprising a spinning pulley main body;
[0007] The installation sleeve and the clamping sleeve are installed inside the spinning pulley body for hydraulic clamping. An installation hole is provided inside the spinning pulley body. An oil inlet hole is provided inside the upper part of the installation sleeve. An oil cavity is provided inside the installation sleeve and the clamping sleeve. A piston is arranged inside the oil cavity. An exhaust hole is provided inside the lower part of the installation sleeve.
[0008] Preferably, clamping grooves are provided on the inner surface of the spinning pulley body, and threaded grooves are provided on the inner surface of the spinning pulley body. Bolts penetrate through the peripheral surface inside the installation sleeve, and clamping blocks are fixedly installed around the rear of the clamping sleeve.
[0009] Preferably, the clamping blocks fixedly installed on one side of the installation sleeve are movably sleeved in the clamping grooves provided inside the spinning pulley body, and the spinning pulley body is threadedly connected with the installation sleeve.
[0010] Preferably, an installation groove is provided inside the upper part of the installation sleeve, an outer cover is threadedly connected inside the installation groove, an exhaust pipe is arranged inside the lower part of the installation sleeve, and a sealing cover is threadedly connected to the outside of the exhaust pipe.
[0011] Preferably, the oil inlet hole communicates with the oil cavity, and the oil cavity communicates with the exhaust hole.
[0012] Preferably, anti-slip grooves are provided on the inner surface of the clamping sleeve, and the anti-slip grooves are evenly distributed in the clamping sleeve.
[0013] In the above technical solution, the technical effects and advantages provided by the present utility model are as follows:
[0014] Through the settings of the spinning pulley body, the installation sleeve, the clamping sleeve, the oil inlet hole, the oil cavity and the piston, compared with the traditional threaded clamping, the clamping force is higher. At the same time, the constancy of the clamping force and the stability of the spinning pulley body and the shaft are ensured. The installation sleeve and the clamping sleeve are sleeved inside the spinning pulley body, and then the clamping sleeve is sleeved outside the shaft. At this time, the hydraulic oil pipe is connected to the installation sleeve, and then the hydraulic oil is poured into the oil inlet hole and enters the oil cavity, pushing the piston to move inside the oil cavity, so that the clamping sleeve and the shaft expand and clamp evenly, so as to tightly join them together, thus completing the rapid hydraulic clamping.
[0015] Through the settings of the spinning pulley body, the installation groove, the outer cover, the exhaust hole, the exhaust pipe and the sealing cover, it is not only convenient to connect with the external hydraulic oil pipe, but also convenient to connect with an air pump to pump out the air inside the oil cavity to avoid the influence of the internal air on the clamping effect. Through the outer cover on the upper part of the installation sleeve, the outer cover is screwed on when not in use to avoid dust entering. When clamping is required, the installation groove is connected with the hydraulic oil pipe to pour in the hydraulic oil, and the exhaust hole and the exhaust pipe can be connected with the external air pump to pump out the internal air, improving the hydraulic clamping effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.
[0017] Figure 1 It is a schematic diagram of the overall structure of the present utility model;
[0018] Figure 2 It is a schematic diagram of the main structure of the spinning pulley body of the present utility model;
[0019] Figure 3 It is a schematic diagram of the structure of the mounting sleeve and the clamping sleeve of the present utility model;
[0020] Figure 4 It is a schematic diagram of the structure of the outer cover and the sealing cover of the present utility model;
[0021] Figure 5 It is a schematic diagram of the oil cavity inside the clamping sleeve of the present utility model.
[0022] Description of the reference numerals:
[0023] 1. Spinning pulley body; 2. Card slot; 3. Threaded groove; 4. Mounting hole; 5. Mounting sleeve; 6. Clamping sleeve; 7. Bolt; 8. Block; 9. Mounting groove; 10. Outer cover; 11. Oil inlet hole; 12. Oil cavity; 13. Piston; 14. Exhaust hole; 15. Exhaust pipe; 16. Sealing cover; 17. Anti-slip groove. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0024] In order to enable those skilled in the art to better understand the technical solutions of the present utility model, the following will further introduce the present utility model in detail with reference to the drawings.
[0025] The present utility model provides a hydraulically clamped spinning pulley as shown in Figures 1-5 which includes a spinning pulley body 1;
[0026] The mounting sleeve 5 and the jacket 6 are installed inside the spinning pulley body 1 for hydraulic clamping. An installation hole 4 is provided inside the spinning pulley body 1. An oil inlet hole 11 is provided inside the upper part of the mounting sleeve 5. An oil cavity 12 is provided inside the mounting sleeve 5 and the jacket 6. A piston 13 is arranged inside the oil cavity 12. An exhaust hole 14 is provided inside the lower part of the mounting sleeve 5. The mounting sleeve 5 and the jacket 6 are sleeved inside the spinning pulley body 1, and then the jacket 6 is sleeved outside the shaft. At this time, it is connected to the mounting sleeve 5 through a hydraulic oil pipe. Then, hydraulic oil is poured into the oil inlet hole 11 and enters the oil cavity 12, pushing the piston 13 to move inside the oil cavity 12, so that the jacket 6 and the shaft expand and clamp evenly, thereby tightly joining them together, thus completing rapid hydraulic clamping.
[0027] As Figure 1 , Figure 2 and Figure 3 shown, clamping grooves 2 are provided on the inner surface of the spinning pulley body 1, and threaded grooves 3 are provided on the inner surface of the spinning pulley body 1. Bolts 7 penetrate through the inner peripheral surface of the mounting sleeve 5. Blocks 8 are fixedly installed around the rear of the jacket 6. The threaded groove 3 on one side of the spinning pulley body 1 facilitates the installation of the mounting sleeve 5 and the jacket 6 inside the spinning pulley body 1, so as to perform hydraulic clamping on the shaft.
[0028] As Figure 2 and Figure 3 shown, the block 8 fixedly installed on one side of the mounting sleeve 5 is movably sleeved with the clamping groove 2 provided inside the spinning pulley body 1. The spinning pulley body 1 is threadedly connected to the mounting sleeve 5. By inserting the block 8 at the rear of the mounting sleeve 5 into the clamping groove 2 inside the spinning pulley body 1, it is convenient for the two to be docked, strengthening the docking property and stability of the installation.
[0029] As Figure 4 and Figure 5 shown, an installation groove 9 is provided inside the upper part of the mounting sleeve 5. An outer cover 10 is threadedly connected inside the installation groove 9. An exhaust pipe 15 is provided inside the lower part of the mounting sleeve 5. A sealing cover 16 is threadedly connected to the outside of the exhaust pipe 15. Through the outer cover 10 on the upper part of the mounting sleeve 5, when not in use, the outer cover 10 is screwed on to prevent dust from entering. When clamping is required, the installation groove 9 is connected to the hydraulic oil pipe to pour in hydraulic oil, and the exhaust hole 14 and the exhaust pipe 15 can be connected to an external air pump to extract the air inside, improving the hydraulic clamping effect.
[0030] As Figure 5 shown, the oil inlet hole 11 is communicated with the oil cavity 12, and the oil cavity 12 is communicated with the exhaust hole 14. Hydraulic oil is poured into the oil cavity 12 through the oil inlet hole 11, thereby pushing the piston 13 inside the oil cavity 12 to move for hydraulic clamping, and the exhaust hole 14 is for extracting the air inside.
[0031] As shown Figure 5 In the figure, anti-slip grooves 17 are formed on the inner surfaces of the jacket 6, and the anti-slip grooves 17 are evenly distributed in the jacket 6. By using the anti-slip grooves 17 in the jacket 6, the friction force with the shaft is increased, and the firmness of clamping is enhanced.
[0032] The working principle of this utility model is as follows: First, insert the mounting sleeve 5 and the jacket 6 into the mounting hole 4 in the swivel pulley body 1. Use the block 8 behind the mounting sleeve 5 to insert into the slot 2 on the inner surface of the swivel pulley body 1 to complete the docking. Then, use the bolt 7 to pass through the mounting sleeve 5 and the swivel pulley body 1 and tighten them. Next, put the jacket 6 on the shaft to be installed. Then, unscrew the sealing cover 16 outside the exhaust pipe 15 to connect the air pump with the exhaust pipe 15. After that, pump out the air inside the oil chamber 12 through the air pump. When it is pumped out, tighten the sealing cover 16 outside the exhaust pipe 15 again. Then, unscrew the outer cover 10 above the mounting sleeve 5 and connect the mounting groove 9 with the hydraulic oil pipe. Inject hydraulic oil into the oil chamber 12 through the oil pump. Under the action of the hydraulic pressure, the internal piston 13 is pushed, so that the jacket 6 and the anti-slip grooves 17 firmly clamp the shaft, thus completing the hydraulic clamping. When it is clamped, disassemble the hydraulic pipe from the mounting groove 9. Finally, put the outer cover 10 on the mounting groove 9. In this way, the use process of the hydraulically clamped swivel pulley is completed.
[0033] Only some exemplary embodiments of the present utility model have been described by way of illustration. Undoubtedly, for those of ordinary skill in the art, without departing from the spirit and scope of the present utility model, the described embodiments can be modified in various different ways. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present utility model.
Claims
1. A hydraulically clamped spinning pulley, characterized in that: It comprises a spinning pulley body (1); The mounting sleeve (5) and the clamping sleeve (6) are mounted inside the spun pulley body (1) and are used for hydraulic clamping. The spun pulley body (1) is provided with a mounting hole (4). An oil inlet hole (11) is provided inside the upper part of the mounting sleeve (5). An oil chamber (12) is provided inside the mounting sleeve (5) and the clamping sleeve (6). A piston (13) is provided inside the oil chamber (12). An exhaust hole (14) is provided inside the lower part of the mounting sleeve (5).
2. A hydraulically clamped spinning pulley according to claim 1, characterized in that: The inner surface of the spun pulley body (1) is provided with a clamping groove (2), the inner surface of the spun pulley body (1) is provided with a threaded groove (3), bolts (7) are passed through the inner peripheral surface of the mounting sleeve (5), and clamping blocks (8) are fixedly installed around the rear of the clamping sleeve (6).
3. A hydraulically clamped spinning pulley according to claim 2, characterized in that: A clamping block (8) fixedly mounted on one side of the installation sleeve (5) is movably sleeved with a clamping groove (2) provided inside the spun pulley body (1), and the spun pulley body (1) is threadedly connected to the installation sleeve (5).
4. A hydraulically clamped spinning pulley according to claim 1, characterized in that: An installation groove (9) is provided in the upper interior of the installation sleeve (5), an outer cover (10) is connected to the interior of the installation groove (9) via a thread, an exhaust pipe (15) is provided in the lower interior of the installation sleeve (5), and a sealing cover (16) is connected to the exterior of the exhaust pipe (15) via a thread.
5. A hydraulically clamped spinning pulley according to claim 1, characterized in that: The oil inlet hole (11) is in communication with the oil chamber (12), and the oil chamber (12) is in communication with the exhaust hole (14).
6. A hydraulically clamped spinning pulley according to claim 1, characterized in that: The inner surface of the jacket (6) is provided with anti-skid grooves (17), and the anti-skid grooves (17) are distributed at equal intervals inside the jacket (6).