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Synchronous ring for synchronizer and method for manufacturing synchronous ring

A manufacturing method and technology of synchronous rings, applied in the direction of manufacturing tools, clutches, mechanically driven clutches, etc., can solve the problems of insufficient dynamic friction coefficient, poor anti-overload ability, low material utilization rate, etc., and achieve low cost, no machining, and materials The effect of high utilization

Active Publication Date: 2015-04-29
SHIYAN TONGCHUANG DRIVE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It has the advantages of simple manufacturing process and good wear resistance, but has the disadvantages of expensive molybdenum, insufficient friction coefficient and poor overload resistance;
[0006] 3. Bronze sintering -- the technology of sintered bronze material used in the friction ring of synchronizer is developed by German Hoerbiger Company and applied in mass production. It is wear-resistant, high production efficiency and low cost, but there is insufficient dynamic friction coefficient and chemical reaction with oil. shortcoming;
This kind of synchronous ring has the advantages of high dynamic friction coefficient and wear resistance, but its material utilization rate is low, more than 80% of the friction material is removed by machining, and the bonding reliability between the friction layer and the synchronous ring base is poor

Method used

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  • Synchronous ring for synchronizer and method for manufacturing synchronous ring
  • Synchronous ring for synchronizer and method for manufacturing synchronous ring

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Embodiment 1

[0029] Embodiment 1: A synchronous ring for a synchronizer is provided, including a synchronous ring base 1 , and a friction plate 2 is provided inside the synchronous ring base 1 , and the friction plate 2 is composed of a soft base layer 21 and a friction layer 22 . By replacing the existing hard friction layer structure with the combined structure of the soft base layer 21 and the friction layer 22, the anti-overload performance of the synchronous ring is improved. The surface of the friction layer 22 is provided with an oil discharge groove 3 . The thickness of the friction plate 2 is 0.5mm˜1mm.

[0030] A method for manufacturing a synchronizer ring for a synchronizer, comprising the following steps:

[0031] (1) Mix artificial graphite and friction additive with resin powder evenly to make a friction layer mixture, wherein the mass ratio of artificial graphite is 45% to 63%, the mass ratio of friction additive is 25% to 42%, and the resin powder The mass ratio of the f...

Embodiment 2

[0036] Embodiment 2: A synchronous ring for a synchronizer is provided, including a synchronous ring base 1 , and a friction plate 2 is provided inside the synchronous ring base 1 , and the friction plate 2 is composed of a soft base layer 21 and a friction layer 22 . By replacing the existing hard friction layer structure with the combined structure of the soft base layer 21 and the friction layer 22, the anti-overload performance of the synchronous ring is improved. The surface of the friction layer 22 is provided with an oil discharge groove 3 . The thickness of the friction plate 2 is 0.5mm˜1mm.

[0037] A method for manufacturing a synchronizer ring for a synchronizer, comprising the following steps:

[0038] (1) Mix artificial graphite and friction additive with resin powder evenly to make a friction layer mixture, wherein the mass ratio of artificial graphite is 45% to 63%, the mass ratio of friction additive is 25% to 42%, and the resin powder The mass ratio of the f...

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Abstract

The invention discloses a synchronous ring for a synchronizer and a method for manufacturing the synchronous ring. The synchronous ring comprises a synchronous ring base, and a friction plate is arranged in the synchronous ring base and consists of a flexible base layer and a friction layer which are compounded. A combined structure consisting of the flexible base layer and the friction layer replaces an existing machined friction layer structure, a hard friction material without elasticity and toughness is improved to form a bendable adhesive friction material without being machined, and a friction abrasion performance and reliability of the synchronous ring are improved. In addition, an oil drainage groove is directly pressed on the friction layer, process is simplified, and cost is lowered. Besides, the platy friction plate can be cut into various shapes according to actual needs, the process is simple, machining is omitted, materials are saved, and the synchronous ring is applicable to synchronizers.

Description

technical field [0001] The invention relates to a synchronizer friction element, in particular to a synchronizer ring for a synchronizer and a manufacturing method thereof. Background technique [0002] The synchronizing ring is an important part of the synchronizer, and it is the friction element of the synchronizer set by the automobile transmission to make the gear shift light and silent and prolong the life of the coupling teeth. It generates frictional torque with the matched conical surface to synchronize the active and passive elements in an instant, so as to realize the non-impact and light and silent shifting of the active and passive gear ends. [0003] At present, the manufacturing methods of the synchronous ring mainly include the following: forging brass machining spiral, molybdenum thermal spraying, bronze sintering, carbon-based pressing and firing process, etc. [0004] 1. Forged brass machining spirals - the earliest developed and put into production applic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16D23/02B28B3/00
Inventor 杨宏伟万贤毅田军刘刚
Owner SHIYAN TONGCHUANG DRIVE TECH CO LTD
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