Gear shift mechanism of manual transmission

Abstract

The invention discloses a gear selection and shift mechanism of a manual transmission, which comprises a gear shifting fork, a gear shift shifting block, a gear selection and shift shaft, a gear selection and shift sleeve barrel which is sleeved on the gear selection and shift shaft and a gear selection return pin which is fixedly arranged, wherein the outer surface of the gear selection and shift sleeve barrel is provided with a V-shaped groove; the end part of the gear selection return pin is elastically in contact with the surface of the V-shaped groove; and the gear shift shifting block and the gear selection and shift sleeve barrel are fixedly connected. The V-shaped groove on the outer surface of the gear selection and shift sleeve barrel is matched with the gear selection return pin, and when the gear selection and shift sleeve barrel axially moves to select a gear, the gear selection return pin can generate thrust force to an inclined plane of the V-shaped groove so as to ensure that the gear selection and shift sleeve barrel automatically returns to a central position to facilitate the next gear selection and shift operation. At the same time, the gear selection and shift sleeve barrel adopts an integrated integration structure which comprises a multifunctional safety device capable of automatically locking, mutually locking (reverse gear locking) and transmitting neutral gear signals and reverse gear signals. The gear selection and shift mechanism ensures that actions of each functional part are more coordinated and reliability, reduces the number of parts, and is good in manufacturability, convenient in assembly and reduced in manufacturing cost.

Description

technical field [0001] The invention belongs to the field of automobile transmission, and in particular relates to a gear selection and shifting mechanism of a transmission, which is applied in a horizontal six-speed manual transmission. Background technique [0002] A car with a manual transmission has good power, economy and acceleration. The working principle of the transmission is to expand the range of driving force and speed of the vehicle to meet different driving conditions by changing the transmission ratio. With the continuous development of automobile technology, the shift quality requirements of manual transmissions are also getting higher and higher. [0003] In the gear selection mechanism of a traditional manual transmission, it includes a gear selection shaft and a gear selection fork. A cam with a positioning groove is fixed on the top, and the cam and the selector shift shaft are fixed by elastic pins, and a fixed fixed row pin is also included to match t...

AI Technical Summary

Problems solved by technology

In order to ensure that the transmission can work accurately, safely and reliably under any circumstances, it should be equipped with a self-locking device and an interlocking device. There is a neutral position in the middle, so there are many types of parts in the gear selection and shifting mechanism, and the structure is more complicated

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