Clutch shaft with good sealing effect

By designing components such as sealing gaskets, retaining strips, retaining grooves, and connecting grooves on the clutch shaft, the sealing performance is enhanced, solving the problem of poor clutch shaft sealing effect, achieving effective sealing of lubricating oil, and ensuring stable operation of the transmission system.

CN223622058UActive Publication Date: 2025-12-02JIANGSU RUISHENG MACHINERY CO LTD
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Patent Information

Application Number
CN202520498764.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-20
Publication Date
2025-12-02
Estimated Expiration
2035-03-20

AI Technical Summary

Technical Problem

Poor sealing of the clutch shaft during use leads to lubricant leakage, affecting component life and transmission system performance.

Method used

A sealing mechanism comprising a sealing gasket, a retaining strip, a retaining groove, a connecting groove, a slide bar, a guide block, a spring, and balls is designed. The combination of these components enhances the sealing between the shaft and the mounting plate and reduces lubricating oil leakage.

Benefits of technology

It effectively improves the sealing effect of the clutch shaft, prevents lubricating oil leakage, and ensures the stability and reliability of the transmission system.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of clutch shafts, and particularly relates to a clutch shaft with a good sealing effect, which comprises a shaft body, a mounting plate is sleeved on the outer side of the shaft body in a sliding mode, a sealing gasket is connected inside the shaft body in a sliding mode, a blocking groove is arranged inside the sealing gasket, and a blocking strip is fixedly connected inside the sealing gasket. And a sealing mechanism is arranged on the sealing gasket. According to the clutch shaft, the sealing gasket, the blocking strip, the blocking groove, the connecting groove and other parts are arranged, the sealing performance between the shaft body and the mounting plate can be improved, lubricating oil can be delayed through the guide groove and the connecting groove, leakage or entering resistance is increased, the sealing effect is further enhanced, and the problem that the sealing effect is poor when the clutch shaft is used is solved.
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Description

Technical Field

[0001] This utility model relates to the field of clutch shaft technology, specifically to a clutch shaft with good sealing effect. Background Technology

[0002] The clutch shaft plays a crucial role in the automotive transmission system. It is a key component connecting the engine and transmission, bearing the vital responsibility of power transmission. During vehicle starting, gear shifting, and driving, the clutch shaft accurately transmits engine power to the transmission, enabling smooth starts, seamless gear changes, and continuous driving. The clutch shaft needs to possess good strength and toughness to withstand enormous torque and frequent stress changes, ensuring stable and reliable operation under various complex conditions. Simultaneously, its surface finish requires extremely high precision, which helps achieve precise fit with components such as the clutch disc, reducing energy loss during power transmission and improving transmission efficiency. The clutch shaft disclosed in utility model patent publication number CN2702114Y includes a hub and a shaft, with the hub and shaft forming a single integral component.

[0003] Poor sealing of the clutch shaft during use can easily lead to a series of problems. Lubricating oil leakage is a common issue. Due to inadequate sealing, the lubricating oil intended for lubricating and cooling the clutch components gradually seeps out, resulting in insufficient lubrication. This not only increases frictional wear between components and shortens their lifespan but can also affect the performance of the entire transmission system due to overheating. Utility Model Content

[0004] The purpose of this invention is to provide a clutch shaft with good sealing performance, which solves the problem of poor sealing performance of the clutch shaft during use.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a clutch shaft with good sealing effect, comprising a shaft body, an mounting plate slidably sleeved on the outer side of the shaft body, a sealing gasket slidably connected inside the shaft body, a retaining groove being formed inside the sealing gasket, a retaining strip being fixedly connected inside the sealing gasket, and a sealing mechanism being provided on the sealing gasket.

[0006] Preferably, the sealing gasket has a connecting groove inside, and the retaining groove communicates with the connecting groove. The design of the retaining groove and the connecting groove can increase the resistance to lubricating oil leakage or ingress.

[0007] Preferably, the sealing gasket contacts the mounting plate, and the retaining strip contacts the mounting plate. The design of the sealing gasket and the retaining strip can increase the sealing performance between the shaft mounting plates.

[0008] Preferably, the sealing mechanism includes a slide rod, the slide rod is slidably connected inside the sealing gasket, a guide rod is fixedly connected inside the sealing gasket, a guide block is fixedly connected to the outside of the slide rod, and a spring is provided on the outside of the guide rod. Through the design of the sealing mechanism, the sealing gasket can always be in contact with the mounting plate.

[0009] Preferably, the slide bar is internally connected with ball bearings, which contact the shaft. The design of the ball bearings can reduce the wear of the sealing gasket when the shaft rotates.

[0010] Preferably, the guide block is slidably connected to the sealing gasket and the guide block is slidably connected to the guide rod. The design of the guide block can guide the sealing gasket.

[0011] Preferably, one end of the spring contacts the guide block, and the other end of the spring contacts the sealing gasket. Through the design of the spring, the sealing gasket can be driven to fit against the mounting plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model, by providing components such as sealing gaskets, baffles, baffle grooves, and connecting grooves, can increase the sealing performance between the shaft and the mounting plate. Furthermore, the guide grooves and connecting grooves can delay the flow of lubricating oil, increasing the resistance to leakage or ingress, and further enhancing the sealing effect, thus solving the problem of poor sealing performance of the clutch shaft during use.

[0014] 2. This utility model, by providing components such as a slide rod, guide block, and spring, allows the slide rod to drive the sealing gasket to fit against the mounting plate through the elastic force of the spring, thereby effectively increasing the sealing performance between the shaft and the mounting plate. Furthermore, by providing ball bearings, wear on the sealing gasket can be reduced when the shaft rotates. Attached Figure Description

[0015] Figure 1 This is a perspective view of the overall structure of this utility model;

[0016] Figure 2 For the present utility model Figure 1 A three-dimensional view of the local structure;

[0017] Figure 3 For the present utility model Figure 1 A front sectional view;

[0018] Figure 4 For the present utility model Figure 3 Enlarged view of part A of the structure.

[0019] In the diagram: 1. Shaft; 2. Mounting plate; 3. Sealing gasket; 31. Retaining groove; 32. Connecting groove; 33. Retaining strip; 4. Sealing mechanism; 41. Slide rod; 42. Ball bearing; 43. Guide rod; 44. Guide block; 45. Spring. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-4 A clutch shaft with good sealing effect includes a shaft body 1, a mounting plate 2 slidably sleeved on the outer side of the shaft body 1, a sealing gasket 3 slidably connected inside the shaft body 1, a retaining groove 31 and a connecting groove 32 opened inside the sealing gasket 3, the retaining groove 31 and the connecting groove 32 are connected, the design of the retaining groove 31 and the connecting groove 32 can increase the resistance to lubricating oil leakage or entry, a retaining strip 33 is fixedly connected inside the sealing gasket 3, the sealing gasket 3 contacts the mounting plate 2, the retaining strip 33 contacts the mounting plate 2, the design of the sealing gasket 3 and the retaining strip 33 can increase the sealing performance between the shaft body 1 and the mounting plate 2, and a sealing mechanism 4 is provided on the sealing gasket 3.

[0022] Please see Figure 2-4 The sealing mechanism 4 includes a slide rod 41. The slide rod 41 is slidably connected inside the sealing gasket 3. A ball bearing 42 is rotatably connected inside the slide rod 41. The ball bearing 42 contacts the shaft 1. The design of the ball bearing 42 can reduce the wear of the sealing gasket 3 when the shaft 1 rotates. A guide rod 43 is fixedly connected inside the sealing gasket 3. A guide block 44 is fixedly connected to the outside of the slide rod 41. The guide block 44 is slidably connected to the sealing gasket 3.

[0023] Please see Figure 2-4 The guide block 44 is slidably connected to the guide rod 43. The guide block 44 is designed to guide the sealing gasket 3. A spring 45 is provided on the outside of the guide rod 43. One end of the spring 45 contacts the guide block 44, and the other end of the spring 45 contacts the sealing gasket 3. The spring 45 is designed to drive the sealing gasket 3 to fit with the mounting plate 2. The sealing mechanism 4 is designed to keep the sealing gasket 3 in contact with the mounting plate 2 at all times.

[0024] The specific implementation process of this utility model is as follows: When using the clutch shaft, the spring 45 plays a key role. During equipment startup or operation, the spring 45, with its own elasticity, can gently and stably drive the sealing gasket 3 to slide precisely on the slide rod 41. As the sealing gasket 3 slides, it gradually comes into close contact with the mounting plate 2. This contact is not a simple planar contact, but achieves good sealing contact in all directions, greatly reducing the gaps that may exist between the shaft 1 and the mounting plate 2, effectively preventing the intrusion of external impurities and air from the source, and also preventing accidental leakage of internal lubricating oil. Moreover, the retaining strip 33 on the sealing gasket 3 will also come into close contact with the mounting plate 2, forming an additional sealing barrier. Even in special circumstances, such as when a small gap appears between the sealing gasket 3 and the mounting plate 2, causing a tendency for lubricating oil to leak, the ingenious design of the retaining groove 31 and the connecting groove 32 plays an important role. The retaining groove 31 and the connecting groove 32 can guide the flow of lubricating oil and increase the resistance to lubricating oil leakage or the entry of external impurities. The lubricating oil needs to bypass these tortuous channels, which greatly reduces the possibility of leakage, thereby ensuring the stability and reliability of the entire sealing system and ensuring the normal operation of the clutch shaft under different working conditions.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A clutch shaft with good sealing effect, comprising a shaft body (1), characterized in that: The shaft (1) is slidably sleeved with a mounting plate (2), and the shaft (1) is slidably connected with a sealing gasket (3). The sealing gasket (3) has a retaining groove (31) inside, and a retaining strip (33) is fixedly connected inside. The sealing gasket (3) is provided with a sealing mechanism (4).

2. The clutch shaft with good sealing effect according to claim 1, characterized in that: The sealing gasket (3) has a connecting groove (32) inside, and the retaining groove (31) is connected to the connecting groove (32).

3. A clutch shaft with good sealing effect according to claim 1, characterized in that: The sealing gasket (3) is in contact with the mounting plate (2), and the baffle (33) is in contact with the mounting plate (2).

4. A clutch shaft with good sealing effect according to claim 1, characterized in that: The sealing mechanism (4) includes a slide rod (41), the slide rod (41) is slidably connected inside the sealing gasket (3), the guide rod (43) is fixedly connected inside the sealing gasket (3), the guide block (44) is fixedly connected to the outside of the slide rod (41), and a spring (45) is provided on the outside of the guide rod (43).

5. A clutch shaft with good sealing effect according to claim 4, characterized in that: The slide bar (41) is internally connected to a ball bearing (42), which is in contact with the shaft (1).

6. A clutch shaft with good sealing effect according to claim 4, characterized in that: The guide block (44) is slidably connected to the sealing gasket (3), and the guide block (44) is slidably connected to the guide rod (43).

7. A clutch shaft with good sealing effect according to claim 4, characterized in that: One end of the spring (45) is in contact with the guide block (44), and the other end of the spring (45) is in contact with the sealing gasket (3).

Citation Information

Patent Citations

  • Clutch shaft

    CN2702114Y