Synchronizer and automobile

Abstract

The invention provides a synchronizer and an automobile. The synchronizer comprises a gear hub, a gear sleeve coaxially and glidingly mounted on the gear hub, multiple sliding blocks mounted in sliding block grooves of the gear hub in a one-to-one correspondence manner, a synchronizing ring coaxially mounted in annular grooves of the gear hub as well as multiple supports mounted in support grooves of the gear hub in a one-to-one correspondence manner, wherein the gear hub comprises the multiple annular grooves, the multiple sliding block grooves and the multiple support grooves which are sequentially formed in the outer circumferential edge of the gear hub at intervals; spline grooves are formed in the inner circumferential surface of the gear sleeve; the synchronizing ring is provided with multiple bulge blocks bulging towards the gear hub; each support comprises a base and a boss bulging out of the base to extend, a bulging strip propped against the corresponding support groove is arranged in a position where the base and the boss are connected and bulges out of the surface of the base, and supporting feet with arc-shaped outer edges are formed at two ends of the base; each bulge block of the synchronizing ring is inserted in the corresponding support groove and is in clearance fit with the corresponding two supporting feet respectively, and each boss is connected with the corresponding spline groove radially. With the adoption of the synchronizer, problems of gear engagement gear collisions during gear reversing without the synchronizer as well as excessive gear shifting force of a leverage synchronizer during high gear engagement can be solved.

Description

technical field [0001] The invention relates to the field of automobile transmissions, in particular to a synchronizer and an automobile. Background technique [0002] At present, two solutions are generally used to solve the problem of gear shifting for transmissions without reverse gear synchronizers: 1. Direct parking and gear shifting: the disadvantage of this shifting method is that the rate of reverse gear shifting is low and accompanied by abnormal noise from the transmission; 2. .Use the lever synchronizer in the high-speed gear, and use the reverse braking function of the lever synchronizer to brake the reverse gear function. The disadvantage of this scheme is that the lever mass of the lever synchronizer is relatively large. Centrifugal force increases the shifting force of high-speed gear (generally, the shifting force on the handle increases by 30~40N). Contents of the invention [0003] The technical problem to be solved by the present invention is to provide...

AI Technical Summary

Problems solved by technology

[0002] At present, two solutions are generally used to solve the problem of gear shifting for transmissions without reverse gear synchronizers: 1. Direct parking and gear shifting: the disadvantage of this shifting method is that the reverse gear shifting rate is low and accompanied by abnormal noise of the transmission teeth; 2. .Use the lever synchronizer in the high-speed gear, and use the reverse braking function of the lever synchronizer to brake the reverse gear function. The disadvantage of this solution is that the lever mass of the lever synchronizer is relatively large. Centrifugal force increases the shifting force of high-speed gear (generally, the shifting force on the handle increases by 30~40N)

Images