Combined clutch aluminum piston

The combined design of the rubber body and aluminum shell and the anti-slip stripe structure solves the shortcomings of the combined clutch piston in structural compactness and dynamic performance, achieves higher space utilization and dynamic adaptability, and adapts to high-speed and high-load working environments.

CN223359734UActive Publication Date: 2025-09-19HAERBIN LIMIN RUBBER FACTORY
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Patent Information

Application Number
CN202423189562.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-23
Publication Date
2025-09-19
Estimated Expiration
2034-12-23

AI Technical Summary

Technical Problem

The existing combined clutch piston has deficiencies in structural compactness and dynamic performance, and is unable to meet the requirements of high-speed and high-load working environments.

Method used

The rubber body and the aluminum shell are connected by positioning columns and positioning holes, and the anti-slip stripes and anti-bracket structure are combined to enhance the connection stability and dynamic adaptability of the piston.

Benefits of technology

It achieves a more compact structural design, improves space utilization and dynamic performance, and can better adapt to high-speed and high-load working environments.

✦ Generated by Eureka AI based on patent content.

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Abstract

A combined clutch aluminum piston belongs to the technical field of pistons. Comprising a rubber body, an aluminum shell and positioning columns. A positioning column is arranged at the bottom of the rubber body, a positioning hole matched with the positioning column is formed in the aluminum shell, and the rubber body and the aluminum shell are connected through insertion of the positioning column and the positioning hole. Through the combined design of multiple parts, the more compact structure can be realized, the requirement of the installation compactness of the internal structure of the speed reducer is met, and the space utilization rate of the whole machine is improved. The combined piston is excellent in dynamic performance, the deformation and stress characteristics of the piston under the action of dynamic load are considered, and the dynamic characteristics of the design weighting structure of the combined piston can better adapt to the high-speed and high-load working environment.
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Description

Technical Field

[0001] The utility model belongs to the technical field of pistons, and in particular relates to a combined clutch aluminum piston. Background Art

[0002] With the continued development of the automotive industry, performance requirements for automatic transmissions will continue to rise. As a key component in enhancing transmission performance, the combined clutch piston holds a promising future. In the future, this product will focus more on intelligent, lightweight, and environmentally friendly development trends. By introducing more advanced technologies and innovative concepts, we will continuously improve product performance and quality to meet growing market demand and environmental requirements. Furthermore, as the new energy vehicle market continues to expand, the application of combined clutch pistons in this field will become more extensive and in-depth. Utility Model Content

[0003] The purpose of the utility model is to provide a combined clutch aluminum piston.

[0004] The technical solution adopted by this utility model is:

[0005] A combined clutch aluminum piston comprises a rubber body, an aluminum shell and a positioning column; the positioning column is provided at the bottom of the rubber body, and a positioning hole matching the positioning column is provided in the aluminum shell. The rubber body and the aluminum shell are connected by plugging the positioning column and the positioning hole.

[0006] Compared with the prior art, the present invention has the following beneficial effects:

[0007] The utility model achieves a more compact structure through a multi-component design, meeting the requirements for compact installation of the decelerator's internal structure and improving the space utilization of the entire machine. The utility model has excellent dynamic performance. Considering the deformation and stress characteristics of the piston under dynamic load, the design of the combined piston enhances the dynamic characteristics of the structure, making it better adapted to high-speed and high-load working environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a schematic diagram of the structure of the utility model;

[0009] Figure 2 This is a schematic diagram of the rubber body structure of the utility model;

[0010] Figure 3 This is a schematic diagram of the aluminum shell structure of the utility model;

[0011] Among them: 1. Rubber body; 2. Metal gasket; 3. Aluminum shell; 4. Positioning hole; 5. Anti-slip stripe; 6. Positioning column; 7. Anti-slip part; 8. Anti-bracket. DETAILED DESCRIPTION

[0012] In order to better understand the purpose, structure and function of the present invention, the present invention is described in further detail below with reference to the accompanying drawings.

[0013] like Figures 1 to 3 As shown, the utility model provides a combined clutch aluminum piston, including a rubber body 1, an aluminum shell 3 and a positioning column 6; the positioning column 6 is provided at the bottom of the rubber body 1, and a positioning hole 4 matching the positioning column 6 is opened in the aluminum shell 3, and the connection between the rubber body 1 and the aluminum shell 3 is achieved by plugging the positioning column 6 and the positioning hole 4.

[0014] The middle part of the rubber body 1 is an anti-slip portion 7 , which is integrally formed with the positioning column 6 at the lower end. The aluminum shell 3 is provided with an anti-slip groove 8 that matches the anti-slip portion 7 , and the anti-slip groove 8 is connected to the positioning hole 4 .

[0015] The outer surface of the anti-slip portion 7 is provided with anti-slip stripes 5 .

[0016] The anti-slip portion 7 adopts a frustum structure.

[0017] The rubber body 1 has a metal gasket 2 built in.

[0018] The utility model adopts the design of anti-stripping stripes 5, processes stripes on the mold to increase the pulling force, and designs positioning holes 4 on the frame to fix the piston and the frame to prevent the shaft from rotating.

[0019] Production process: First, place the metal gasket 2 into the vulcanization mold, add the rubber material, and perform a vulcanization molding. After molding, the rubber body 1 is obtained. The rubber body 1 has a positioning column 6 and an anti-slip stripe 5. After the rubber body 1 is aligned with the positioning hole 4, it is pressed into the aluminum shell 3. The aluminum shell 3 and the anti-slip stripe 5 are tightly combined to form an aluminum piston.

[0020] It is understood that the present invention is described by way of certain embodiments, and those skilled in the art will appreciate that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. Furthermore, under the guidance of the present invention, these features and embodiments may be modified to suit specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are intended to be protected by the present invention.

Claims

1. A combined clutch aluminum piston, characterized by: The invention comprises a rubber body (1), an aluminum shell (3) and a positioning column (6); the positioning column (6) is provided at the bottom of the rubber body (1); a positioning hole (4) matching the positioning column (6) is provided in the aluminum shell (3); and the connection between the rubber body (1) and the aluminum shell (3) is achieved by plugging the positioning column (6) and the positioning hole (4).

2. The aluminum piston of a combined clutch according to claim 1, characterized in that: The middle part of the rubber body (1) is an anti-slip portion (7), and the anti-slip portion (7) is integrally formed with the positioning column (6) at the lower end. The aluminum shell (3) is provided with an anti-bracing groove (8) matching the anti-slip portion (7), and the anti-bracing groove (8) is connected to the positioning hole (4).

3. The aluminum piston of a combined clutch according to claim 2, characterized in that: The outer surface of the anti-slip portion (7) is provided with anti-slip stripes (5).

4. The aluminum piston for a combined clutch according to claim 3, characterized in that: The anti-slip portion (7) adopts a frustum structure.

5. The aluminum piston for a combined clutch according to claim 1, characterized in that: The rubber body (1) is internally provided with a metal gasket (2).