Synchronizer assembly

Abstract

The invention discloses a synchronizer assembly, and relates to the technical field of gearboxes. The synchronizer assembly comprises an inner gear seat, a sliding gear sleeve and a synchronizing ring, wherein the sliding gear sleeve is arranged on the inner gear seat in a sleeving mode, and a synchronizing ring is embedded in the inner gear seat; the synchronizer assembly further comprises a gearspoke, a joint gear and a conical ring, wherein the gear spoke comprises a spoke main body and an outer thread section which are integrally formed, and a circle of unloading groove used for releasingstress is formed in the end part, close to the spoke main body, of the external thread section; the joint gear sleeves and is fixed on the spoke main body, and the end face, close to the external thread section, of the joint gear and the side wall, close to the spoke main body, of the unloading groove are located on the same plane; and the conical ring is arranged on the outer thread section in asleeving mode and is meshed with the outer thread section, the conical ring abuts against the joint gear, the synchronizing ring is provided with an inner friction conical surface, and the conical ring is provided with an outer friction conical surface abutting against the inner friction conical surface. According to the synchronizer assembly, the problem of local stress concentration at the joint of the gear spoke and the conical ring can be solved, an original wear-resisting shaft sleeve is omitted, the strength of the gear spoke is greatly improved, and the safety risk and the production cost are reduced.

Description

technical field [0001] The present application relates to the technical field of gearboxes, in particular to a synchronizer assembly. Background technique [0002] At present, in the transmission structure, the synchronizer is the main component to improve the shifting performance of the automotive mechanical transmission, and it plays a certain role in reducing the labor intensity of the driver, realizing light operation and improving the service life of the gear and transmission system. Wherein, in the process of shifting gears, it is necessary to ensure the stable rotation of the engaging gears. [0003] In the related art, a wear-resistant sleeve is usually added between the engaging gear and the gear shaft to ensure long-term stable rotation of the engaging gear. [0004] However, due to the limitation of the space size of the synchronizer, the space between the synchronizer cone ring and the engaging gear is small, and the wear-resistant sleeve design is added between...

AI Technical Summary

Problems solved by technology

[0005] In view of the defects existing in the prior art, the purpose of this application is to provide a synchronizer assembly to solve the problem of fatigue fracture of the gear spoke due to stress concentration at the connection part of the gear spoke and the bevel ring in the related art, resulting in the failure of the whole gearbox. question

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