Special-shaped ring for reciprocating motion sealing of clutch piston and retainer

Abstract

The utility model discloses a special-shaped ring for reciprocating motion sealing of a clutch piston and a retainer, and belongs to the technical field of sealing rings. Comprising a main body part, a sealing lip part and an extension part, the main body part is integrally connected with the sealing lip part and the extension part, the main body part is arranged in an annular groove formed in the clutch piston, the sealing constraint area of the main body part and the outer surface of the clutch piston is increased through the extension part, and the main body part and the retainer are sealed through the sealing lip part. According to the special-shaped ring, by changing the external structure, the assembling boundary of the special-shaped ring and the assembling position is matched as much as possible under the condition that performance indexes are met, and an O-shaped structure is changed into a special-shaped structure, so that the sealing area of the special-shaped ring is enlarged, and the friction force is increased; the rubber body in contact with the mounting limit of relative movement is specially designed in structure, so that the rubber body still has better sealing performance during reciprocating movement, and is firmer and better in adaptability and sealing performance after being mounted under a complicated assembly limit.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of sealing ring, specifically relates to a special-shaped ring for reciprocating motion sealing of clutch piston and retainer. BACKGROUND

[0002] The sealing property and adaptability of the sealing ring during assembly are very important, the O-shaped ring of ordinary structure cannot satisfy the relatively complex assembly limit, and finally leads to insufficient tightness after assembly and further leads to oil leakage, and the adaptability is very poor and the sealing effect is not ideal. CONTENT OF THE UTILITY MODEL

[0003] The utility model discloses in order to solve the problem of oil leakage caused by the inadaptation of sealing ring after assembly under the complex assembly limit, and further provides a special-shaped ring for reciprocating motion sealing of clutch piston and retainer.

[0004] The technical scheme adopted by the utility model is:

[0005] A special-shaped ring for reciprocating motion sealing of clutch piston and retainer, including main part, sealing lip part, extension, the main part is integrally connected with sealing lip part and extension, the main part is arranged in the annular groove of clutch piston, and the outer surface sealing constraint area of clutch piston is increased through the extension, and the retainer is sealed through the sealing lip part.

[0006] Compared with the prior art, the utility model has the following beneficial effects:

[0007] The special-shaped ring of the utility model changes the external structure as much as possible to coincide with the assembly limit of the assembly position under the condition of meeting the performance index, changes from the O-shaped structure to the special-shaped structure, makes the sealing area of the special-shaped ring larger, increases the friction force, carries out special structure design to the rubber body of the installation limit of relative motion, still has good sealing performance when reciprocating, is also more firm after installation under the complex assembly limit, and the adaptability and the sealing property are better. BRIEF DESCRIPTION OF DRAWINGS

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

[0009] Figure 2 It is the main sectional view of the utility model;

[0010] Wherein: 1, main part;2, sealing lip part;3, notch;4, extension;5, retainer;6, clutch piston. DETAILED DESCRIPTION

[0011] In order to better understand the purpose, structure and function of the utility model, the utility model is described in further detail below in conjunction with the drawings.

[0012] As Figure 1 , Figure 2 The utility model provides a special-shaped ring for reciprocating motion seal of clutch piston and cage, including main part 1, sealing lip 2, extension 4, the main part 1 and sealing lip 2, extension 4 are integrally connected, the main part 1 sets up in the annular groove of clutch piston 6, and increases the outer surface sealing constraint area with clutch piston 6 through extension 4, is sealed with cage 5 through sealing lip 2.

[0013] The sealing lip 2 and extension 4 between be equipped with the aperture 3 of smooth transition.

[0014] The main part 1, sealing lip 2 and extension 4 adopt rubber material to make.

[0015] It can be understood that the utility model is described through some embodiments, and the person skilled in the art knows that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the utility model.In addition, under the guidance of the utility model, these features and embodiments can be modified to adapt to specific conditions and materials without departing from the spirit and scope of the utility model.Therefore, the utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application belong to the scope protected by the utility model.

Claims

1. A profiled ring for clutch piston and cage reciprocating motion seal, characterized by: It includes a main body part (1), a sealing lip part (2), and an extension part (4); the main body part (1) is integrally connected with the sealing lip part (2) and the extension part (4), the main body part (1) is arranged in a ring-shaped groove arranged on a clutch piston (6), and the sealing constraint area with the outer surface of the clutch piston (6) is increased through the extension part (4), and the sealing lip part (2) is sealed with a retainer (5).

2. A profiled ring for reciprocating motion sealing of clutch piston and cage as claimed in claim 1 wherein: An opening (3) with smooth transition is arranged between the sealing lip part (2) and the extension part (4).

3. A profiled ring for reciprocating motion sealing of clutch piston and cage as claimed in claim 1 wherein: The main body part (1), the sealing lip part (2), and the extension part (4) are made of rubber material.

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