Manual transmission, reverse gear semi-synchronization mechanism thereof and automobile

Abstract

The invention relates to a manual transmission, a reverse gear semi-synchronization mechanism thereof and an automobile. The reverse gear semi-synchronization mechanism of the manual transmission comprises a gear selecting and shifting shaft, a gear selecting and shifting head, a reverse gear shared shifting fork, a boss shifting head and a reverse gear shifting fork. The gear selecting and shifting head sleeves the gear selecting and shifting shaft and is fastened on the gear selecting and shifting shaft, the reverse gear shared shifting fork annularly sleeves the gear selecting and shifting head, the boss shifting head is fixedly arranged on the reverse gear shared shifting fork, and the reverse gear shifting fork and the reverse gear shared shifting fork are coaxially arranged on a shifting fork shaft. The manual transmission, the reverse gear semi-synchronization mechanism and the automobile have the advantages that the manual transmission, the reverse gear semi-synchronization mechanism and the automobile are simple and compact in structure and convenient to arrange, the transmission is hardly changed, obvious gear shifting force reducing effects can be realized when reverse gear is engaged, two gears can be effectively prevented from being simultaneously engaged, problems of tooth impact, difficulty in gear movement and abnormal friction sound of the traditional idle wheel type reverse gear structure can be effectively solved, smooth reverse gear engaging operation can be carried out, and the like.

Description

technical field [0001] The invention relates to a manual transmission structure, in particular to a manual transmission reverse gear semi-synchronous mechanism, a manual transmission and an automobile. Background technique [0002] Due to its mature technology and low cost, manual transmission has been widely used in economical cars. As people's technical requirements in terms of convenience and noise control are getting higher and higher, the reverse gear mechanism is an indispensable functional component in a manual transmission, and the technical method it adopts will directly affect the customer's operating experience. However, the reality is that among all kinds of customer complaints, the proportion of complaints about reverse gear kicking and reverse gear difficulty is quite high, because the performance of reverse gear directly affects the handling performance of the transmission itself. [0003] At present, there are mainly three types of reverse gear structures, n...

AI Technical Summary

Problems solved by technology

For example, although the transmission form of the spur gear is simple and the technology is mature, because there is no synchronous mechanism similar to that in the forward gear, the spur gear is forcibly engaged in the reverse idle gear when the input shaft or output shaft is still rotating, so There will be reverse gear hitting and abnormal friction noise

The more economical solution is to use the existing gears without changing the original gear shaft structure, and to balance the speed of the input shaft and output shaft when the reverse gear is engaged, so as to facilitate the reverse gear. There are many solutions, but these solutions still fail to make full use of the traditional idler-type reverse gear structure to achieve a smoother reverse gear operation while changing the transmission as little as possible, so it is difficult to effectively avoid the above-mentioned problems. There are problems such as grinding teeth, difficulty in entering, and abnormal friction noise.

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