A lightweight pressure plate assembly for an automotive clutch

By adopting a split-type lightweight design and selecting materials, the problem of increased pressure plate weight was solved, and the wear resistance and heat dissipation performance were improved.

CN224533297UActive Publication Date: 2026-07-21WUHAN RUIMINGDA AUTO PARTS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUHAN RUIMINGDA AUTO PARTS CO LTD
Filing Date
2025-10-21
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

The existing automotive clutch pressure plate uses a one-piece casting structure, which increases weight and affects service life and wear resistance.

Method used

The lightweight pressure plate assembly, featuring a split structure, includes a lightweight disc, contact ring, reinforcing layer, and pressure plate cover. It utilizes aluminum alloy and high-strength steel materials, combined with a honeycomb panel design to reduce weight and increase strength.

Benefits of technology

While maintaining wear resistance and heat resistance, it significantly reduces the overall weight of the pressure plate, extends its service life, and improves heat dissipation performance.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224533297U_ABST
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Abstract

The utility model belongs to clutch technical field, concretely relates to a lightweight pressure plate assembly of automobile clutch, including pressure disc body and pressure disc cover, the pressure disc body is split type structure, the pressure disc body includes light disc and contact ring, the one side of light disc is provided with annular groove, the contact ring is embedded in the inside of annular groove, the other side of light disc is provided with reinforcing layer, the pressure disc body sets up at one side of pressure disc cover, be provided with disc spring between the pressure disc body and pressure disc cover, the inside of annular groove is provided with heat insulating layer. The utility model, this pressure disc body adopts split type structure, the contact ring that will be directly contacted with clutch friction piece uses wear -resisting and high -temperature -resistant material, and light disc adopts the aluminium alloy of smaller density, reduces the weight of pressure disc whole body while giving consideration to wear -resisting when designing, the setting of reinforcing layer can improve the strength of light disc, and honeycomb type design can reduce the material.
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Description

Technical Field

[0001] This utility model belongs to the field of clutch technology, specifically relating to a lightweight pressure plate assembly for an automotive clutch. Background Technology

[0002] The clutch pressure plate is the core component of the clutch assembly. Together with the friction plate and release bearing, it forms the clutch three-piece set. This assembly realizes power transmission through a spring clamping mechanism. When working, the pressure plate engages with the flywheel to complete the power output. When disengaged, the power is cut off to facilitate gear shifting. Abnormal wear can lead to clutch slippage or failure. Correct operation of the clutch pedal can extend its service life. The semi-engaged state will accelerate the wear of the components.

[0003] The pressure plate used in general is usually made of a single piece of cast iron. To ensure the strength and wear resistance of the pressure plate, gray cast iron is usually used, which increases the overall weight of the pressure plate. Utility Model Content

[0004] The purpose of this invention is to provide a lightweight pressure plate assembly for an automotive clutch, which reduces the overall weight of the pressure plate while taking into account wear resistance, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a lightweight pressure plate assembly for an automotive clutch, comprising a pressure plate body and a pressure plate cover. The pressure plate body is a split structure, comprising a lightweight disc and a contact ring. An annular groove is provided on one side of the lightweight disc, and the contact ring is embedded inside the annular groove. A reinforcing layer is provided on the other side of the lightweight disc. The pressure plate body is disposed on one side of the pressure plate cover, and a disc spring is provided between the pressure plate body and the pressure plate cover.

[0006] Furthermore, a heat insulation layer is provided inside the annular groove, and the heat insulation layer is disposed between the side wall of the contact ring and the inner wall of the annular groove.

[0007] Furthermore, the reinforcing layer is an annular honeycomb panel, and the reinforcing layer and the lightweight disk are an integral structure.

[0008] Furthermore, the lightweight disk is made of aluminum alloy, and the contact ring is made of high-strength steel.

[0009] Furthermore, the center of the pressure plate cover has a hollow structure, and the edge of the hollow part in the center of the pressure plate cover is provided with equally spaced bent parts. The disc spring is riveted to the inside of the cover body through several of the bent parts.

[0010] Furthermore, the surface of the reinforcing layer is provided with equally spaced mounting grooves, and one end of each of the bent portions is respectively disposed at one end of the mounting grooves.

[0011] Furthermore, the surface of the cover is provided with equally spaced through grooves.

[0012] Compared with the prior art, the beneficial effects of this utility model are: the pressure plate body adopts a split structure, the contact ring that will directly contact the clutch friction plate is made of wear-resistant and high-temperature resistant material, while the lightweight disc is made of aluminum alloy with lower density. In the design, wear resistance is taken into account while reducing the overall weight of the pressure plate; the setting of the reinforcing layer can improve the strength of the lightweight disc, and the honeycomb design can reduce the amount of material used and reduce the weight. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is an exploded view of the present invention; Figure 3 This is a three-dimensional structural diagram of the pressure plate body of this utility model.

[0014] The attached diagram lists the components represented by each number as follows: 1. Pressure plate body; 11. Lightweight disc; 12. Contact ring; 13. Annular groove; 14. Heat insulation layer; 15. Reinforcing layer; 16. Mounting groove; 2. Pressure plate cover; 21. Cover body; 22. Bending part; 23. Through groove; 3. Disc spring. Detailed Implementation

[0015] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0016] like Figure 1-3 As shown, a lightweight pressure plate assembly for an automotive clutch includes a pressure plate body 1 and a pressure plate cover 2. The pressure plate body 1 is a split structure, comprising a lightweight disc 11 and a contact ring 12. An annular groove 13 is provided on one side of the lightweight disc 11, and the contact ring 12 is embedded inside the annular groove 13. The lightweight disc 11 is made of aluminum alloy, and the contact ring 12 is made of high-strength steel. A reinforcing layer 15 is provided on the other side of the lightweight disc 11. The pressure plate body 1 is located on one side of the pressure plate cover 2, and a disc spring 3 is provided between the pressure plate body 1 and the pressure plate cover 2.

[0017] Based on the above structure, the pressure plate assembly adopts a split structure for its pressure plate body 1. The contact ring 12, which will directly contact the clutch friction plate during use, is made of wear-resistant and high-temperature resistant material, while the lightweight disc 11 is made of aluminum alloy with lower density. In the design, wear resistance is taken into account while reducing the overall weight of the pressure plate.

[0018] like Figure 3 As shown, a heat insulation layer 14 is provided inside the annular groove 13, and the heat insulation layer 14 is disposed between the side wall of the contact ring 12 and the inner wall of the annular groove 13.

[0019] According to the above structure, the heat insulation layer 14 is disposed between the contact ring 12 and the annular groove 13, which plays a role in heat insulation. When the contact ring 12 slides relative to the friction plate, it can prevent heat from being transferred to the lightweight disk 11.

[0020] like Figure 2 As shown, the reinforcing layer 15 is a ring-shaped honeycomb panel, and the reinforcing layer 15 and the lightweight disc 11 are an integral structure.

[0021] According to the above structure, the reinforcement layer 15 can improve the strength of the lightweight disk 11, and the honeycomb design can reduce the amount of material used and reduce the weight.

[0022] like Figure 2 As shown, the middle part of the pressure plate cover 2 is a hollow structure. The edge of the hollow part in the middle of the pressure plate cover 2 is provided with equidistantly distributed bent parts 22. The disc spring 3 is riveted to the inside of the cover body 21 through several bent parts 22. The surface of the reinforcing layer 15 is provided with equidistantly distributed mounting grooves 16. One end of several bent parts 22 is respectively set at one end of several mounting grooves 16. The surface of the cover body 21 is provided with equidistantly distributed through grooves 23.

[0023] According to the above structure, the through groove 23 can not only reduce the material used in the cover 21 itself and reduce the overall weight of the pressure plate, but also make one end of the cover 21 more open, which is conducive to heat dissipation.

[0024] The working principle of this utility model is as follows: The pressure plate assembly adopts a split structure for its pressure plate body 1. The contact ring 12, which will directly contact the clutch friction plate during use, is made of wear-resistant and high-temperature resistant material, while the lightweight disc 11 is made of aluminum alloy with lower density. In the design, wear resistance is taken into account while reducing the overall weight of the pressure plate. The heat insulation layer 14 is set between the contact ring 12 and the annular groove 13 to play a role in heat insulation. When the contact ring 12 slides relative to the friction plate, it can prevent heat from being transferred to the lightweight disc 11. The setting of the reinforcing layer 15 can improve the strength of the lightweight disc 11, and the honeycomb design can reduce the amount of material used and reduce the weight. The setting of the through groove 23 can not only reduce the amount of material used in the cover 21 itself and reduce the overall weight of the pressure plate, but also make one end of the cover 21 more open, which is conducive to heat dissipation.

[0025] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A lightweight pressure plate assembly for an automotive clutch, comprising a pressure plate body (1) and a pressure plate cover (2), characterized in that: The pressure plate body (1) is a split structure. The pressure plate body (1) includes a lightweight disc (11) and a contact ring (12). An annular groove (13) is provided on one side of the lightweight disc (11). The contact ring (12) is embedded in the annular groove (13). A reinforcing layer (15) is provided on the other side of the lightweight disc (11). The pressure plate body (1) is located on one side of the pressure plate cover (2). A disc spring (3) is provided between the pressure plate body (1) and the pressure plate cover (2).

2. The lightweight pressure plate assembly for an automotive clutch according to claim 1, characterized in that: The annular groove (13) is provided with a heat insulation layer (14), which is disposed between the side wall of the contact ring (12) and the inner wall of the annular groove (13).

3. The lightweight pressure plate assembly for an automotive clutch according to claim 2, characterized in that: The reinforcing layer (15) is an annular honeycomb panel, and the reinforcing layer (15) and the lightweight disc (11) are an integral structure.

4. The lightweight pressure plate assembly for an automotive clutch according to claim 3, characterized in that: The lightweight disc (11) is made of aluminum alloy, and the contact ring (12) is made of high-strength steel.

5. A lightweight pressure plate assembly for an automotive clutch according to claim 4, characterized in that: The middle part of the pressure plate cover (2) is hollow, and the edge of the hollow part in the middle of the pressure plate cover (2) is provided with equally spaced bent parts (22). The disc spring (3) is riveted to the inside of the cover body (21) through several of the bent parts (22).

6. The lightweight pressure plate assembly for an automotive clutch according to claim 5, characterized in that: The surface of the reinforcing layer (15) is provided with equally spaced mounting grooves (16), and one end of each of the bending portions (22) is respectively located at one end of the mounting grooves (16).

7. A lightweight pressure plate assembly for an automotive clutch according to claim 6, characterized in that: The surface of the cover (21) is provided with equally spaced through grooves (23).