Synchronizer assembly of automobile gearbox

Abstract

The invention discloses a synchronizer assembly of an automobile transmission. The synchronizer assembly comprises a gear shaft, two gears, a synchronizer tooth holder assembly, a gear shifting assembly and a gear shifting oil path assembly; an axial through hole is formed in the gear shaft, and the gear shaft sequentially comprises a first segment, a second segment, a third segment and a fourth segment; the first segment, the second segment, the third segment and the fourth segment of the gear shaft are sequentially sleeved with the gear, the synchronizer tooth holder assembly, the gears and the gear shifting oil path assembly, and the gear shifting assembly is inserted into the axial through hole, and can drive the synchronizer tooth holder assembly to move in the axial direction of the gear shaft. The gear shifting stroke space of the synchronizer tooth holder assembly is located between the two gears, the radial arrangement space of the synchronizer tooth holder assembly is reduced, the gear shifting assembly is completely located in the axial through hole of the gear shaft, and the stroke of the synchronizer tooth holder assembly is completely located in the gear shaft. Compared with the prior art, an additional space arrangement gear shifting assembly does not need to be consumed, and a gear shifting assembly motion space does not need to be reserved.

Description

technical field [0001] The invention relates to the technical field of automobile gearbox development, in particular to a synchronizer assembly of an automobile gearbox. Background technique [0002] In the product development process of AMT and DCT gearboxes, the design and layout of the shifting core components - the synchronizer and its driving fork components is an important technical difficulty, that is, the layout of the synchronizer and its driving fork components needs to be considered The axial / radial layout space of the synchronizer, the position of the drive oil circuit / motor, the movement space range of the synchronizer and its drive shift fork, the position of the self-locking position pin and the magnet position of the shift fork displacement sensor, etc. Also due to the consideration of the position and function of the above-mentioned layout factors, the traditional layout method makes the radial space of the DCT gearbox need to increase the above-mentioned sy...

AI Technical Summary

Problems solved by technology

Also due to the consideration of the position and function of the above-mentioned layout factors, the traditional layout method makes the radial space of the DCT gearbox need to increase the above-mentioned synchronizer and shift control drive components on the basis of the limit value requirements of the center distance of the gear shaft. Relevant layout space, so that the overall radial space of the DCT transmission is relatively bloated and cannot be reduced

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