CN220248725U

CN220248725U - Assembled clutch piston

Info

Publication number: CN220248725U
Application number: CN202321689632.4U
Authority: CN
Inventors: 朱莉莉; 修艳波; 马鉴频; 聂春会; 姜晓雪
Original assignee: Harbin Saishang Sealing Technology Co ltd
Current assignee: Harbin Saishang Sealing Technology Co ltd
Priority date: 2023-06-29
Filing date: 2023-06-29
Publication date: 2023-12-26
Anticipated expiration: 2033-06-29

Abstract

An assembled clutch piston relates to a piston. The main metal framework, the auxiliary metal framework and the rubber body are of annular structures, the rubber body is vulcanized on the inner wall of the auxiliary metal framework coaxially, and the rubber body is sleeved on the outer side of the main metal framework in a coaxial mode. According to the utility model, rubber is vulcanized on the auxiliary metal framework firstly and then assembled on the main metal framework, so that the rejection rate is reduced, and the price of the auxiliary metal framework is lower than that of the main metal framework, so that the economic loss when the rubber is scrapped is reduced; meanwhile, the die for vulcanization molding of the rubber and the auxiliary metal framework is simple in structure, convenient to produce and process products and capable of accelerating production efficiency.

Description

Assembled clutch piston

Technical Field

The utility model relates to a piston, in particular to an assembled clutch piston.

Background

The clutch piston is generally vulcanized on a metal framework, and the piston reciprocates in the clutch by means of oil pressure and restoring force of a spring, so that power output from the engine to the transmission is completed.

However, in the prior art, rubber is directly vulcanized on a metal framework, if the rubber is scrapped due to the defect of the surface of the rubber in the production process, the metal framework is scrapped together, and the production mode in the prior art increases the production cost to a certain extent due to the high cost of the metal framework.

Disclosure of Invention

In order to solve the problems in the background art, the utility model provides an assembled clutch piston.

The utility model adopts the following technical scheme: an assembled clutch piston comprises a main metal framework, an auxiliary metal framework and a rubber body; the main metal framework, the auxiliary metal framework and the rubber body are of annular structures, the rubber body is vulcanized on the inner wall of the auxiliary metal framework coaxially, and the rubber body is sleeved on the outer side of the main metal framework in a coaxial mode.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, rubber is vulcanized on the auxiliary metal framework firstly and then assembled on the main metal framework, so that the rejection rate is reduced, and the price of the auxiliary metal framework is lower than that of the main metal framework, so that the economic loss when the rubber is scrapped is reduced; meanwhile, the die for vulcanization molding of the rubber and the auxiliary metal framework is simple in structure, convenient to produce and process products and capable of accelerating production efficiency.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a cross-sectional view of FIG. 1;

FIG. 3 is a schematic structural view of a secondary metal skeleton;

FIG. 4 is a schematic diagram of the connection relationship between the secondary metal framework and the rubber body;

fig. 5 is an enlarged view at a of fig. 4.

Detailed Description

The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the utility model, but not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present utility model are all within the protection scope of the present utility model.

An assembled clutch piston comprises a main metal framework 1, an auxiliary metal framework 2 and a rubber body 3; the main metal framework 1, the auxiliary metal framework 2 and the rubber body 3 are all of annular structures, the section of the auxiliary metal framework 2 is L-shaped, and the auxiliary metal framework 2 and the mould can be used for positioning in the production process, so that the rubber body 3 and the auxiliary metal framework 2 are vulcanized together coaxially. The inner wall of the auxiliary metal framework 2 is coaxially vulcanized with a rubber body 3, and the rubber body 3 is coaxially sleeved on the outer side of the main metal framework 1.

An outer sealing lip 12 and an inner sealing lip 13 are arranged on the upper end face of the rubber body 3, and a U-shaped groove is arranged between the outer sealing lip 12 and the inner sealing lip 13.

The inner sealing lip 13 plays a sealing role, preventing the used oil from entering the middle of the rubber body 3 and the main metal skeleton 1 to increase the risk of falling off of the rubber body 3.

The outer sealing lip 12 functions as a seal with the housing.

The inner wall 15 of the rubber body 3 is a corrugated surface, and the corrugated surface increases the holding force after assembly and prevents falling.

The lower end of the inner wall 15 of the rubber body 3 is provided with a wedge-shaped guide surface 16, and the guide surface 16 can facilitate the rubber body 3 to be installed in the main metal framework 1.

The bottom surface of the U-shaped groove penetrates through the thickness direction of the rubber body 3 and is provided with a positioning fulcrum 14, and the positioning fulcrum 14 is convenient for fixing the auxiliary metal framework 2 by a die during production and prevents the auxiliary metal framework 2 from moving up and down.

The main metal framework 1 comprises a bulge 5, an auxiliary ring frame 6, an outer ring frame 8, a main ring frame 9 and an inner ring frame 11 which are integrally formed; the inner end of the main ring frame 9 is connected with the upper end of the inner ring frame 11, the outer end of the main ring frame 9 is connected with the upper end of the outer ring frame 8, the lower end of the outer ring frame 8 is connected with the inner end of the auxiliary ring frame 6 through a round angle 7, the outer end of the auxiliary ring frame 6 is provided with a bulge 5, the upper end face of the auxiliary ring frame 6 and the lower end face of the main ring frame 9 are respectively provided with a stop face 4, and the upper stop face and the lower stop face 4 play a stop role in reciprocating motion.

After the clutch is arranged on the clutch, the clutch is matched with the rubber ring and the friction plate to play a role in sealing reciprocating motion.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. An assembled clutch piston, characterized by: comprises a main metal framework (1), an auxiliary metal framework (2) and a rubber body (3); the main metal framework (1), the auxiliary metal framework (2) and the rubber body (3) are of annular structures, the rubber body (3) is vulcanized on the inner wall of the auxiliary metal framework (2) coaxially, and the rubber body (3) is sleeved on the outer side of the main metal framework (1) coaxially.

2. A fabricated clutch piston as claimed in claim 1, wherein: an outer sealing lip (12) and an inner sealing lip (13) are arranged on the upper end face of the rubber body (3), and a U-shaped groove is formed between the outer sealing lip (12) and the inner sealing lip (13).

3. A fabricated clutch piston as claimed in claim 2, wherein: the inner wall (15) of the rubber body (3) is a corrugated surface.

4. A fabricated clutch piston as claimed in claim 2 or claim 3, wherein: the lower end of the inner wall (15) of the rubber body (3) is provided with a wedge-shaped guide surface (16).

5. A fabricated clutch piston as claimed in claim 4, wherein: the bottom surface of the U-shaped groove is provided with a positioning fulcrum (14).

6. A fabricated clutch piston as claimed in claim 1 or 5, wherein: the main metal framework (1) comprises a bulge (5), an auxiliary ring frame (6), an outer ring frame (8), a main ring frame (9) and an inner ring frame (11) which are integrally formed; the inner end of the main ring frame (9) is connected with the upper end of the inner ring frame (11), the outer end of the main ring frame (9) is connected with the upper end of the outer ring frame (8), the lower end of the outer ring frame (8) is connected with the inner end of the auxiliary ring frame (6), the outer end of the auxiliary ring frame (6) is provided with a bulge (5), and the upper end face of the auxiliary ring frame (6) and the lower end face of the main ring frame (9) are both provided with a stop face (4).