Matched structure of synchronous ring and joint gear ring of automobile manual transmission

Abstract

The invention relates to a matched structure of a synchronous ring and a joint gear ring of an automobile manual transmission. The matched structure comprises the joint gear ring and the synchronous ring; the joint gear ring comprises an axially-extending outer conical friction part; the synchronous ring comprises an inner conical friction surface; the synchronous ring moves axially to enable theinner conical friction surface and the outer conical friction part of the joint gear ring to be in friction jointing or separated; the matched structure is characterized in that the part between the large end and the small end of the axial section of the outer conical friction part of the joint gear ring is bent in an arc shape, a drum-shaped friction surface is formed, and the height of connecting lines between the arc top of the drum-shaped friction surface and the large end and between the arc top and the small end ranges from 0.03 mm to 0.05 mm. The friction jointing of the synchronous ring and the joint gear ring is stable and smooth, the synchronous ring and the joint gear ring are easy to separate and unlink, noises are reduced, and the use comfort level is increased.

Description

technical field [0001] The invention relates to the field of automobile manual transmissions, in particular to a matching structure of a synchronous ring and an engaging ring gear of the automobile manual transmission. Background technique [0002] There are two types of synchronizers for automobile manual transmissions: normal pressure type and inertia type. Among them, the inertia type synchronizer realizes synchronization through the frictional engagement of the synchronous ring and the engaging ring gear on the gear. The ring is provided with a friction outer tapered surface. When the friction inner cone surface of the synchronous ring contacts the friction outer cone surface of the engaging ring gear, under the action of friction torque, the speed of the gear fixed to the engaging ring gear decreases rapidly or rises to the same speed as the synchronizing ring, realizing The synchronous rotation of the two makes the rotating speed of the engaging ring gear relative to ...

AI Technical Summary

Problems solved by technology

However, due to the frictional engagement between the friction inner cone surface of the synchronous ring and the friction outer cone surface of the engaging ring gear, the synchronizing ring is easily stuck to the engaging ring gear after being deformed by force, making it difficult to release the ring after the synchronization is completed. , greatly increasing the ring force, resulting in shifting stuck, collisions, noise, and in severe cases, it may even lead to the fracture and failure of the synchronous ring, which increases the failure frequency of the transmission

Images