a shifting mechanism

Abstract

The present invention relates to the technical field of shifting transmission devices, in particular to a shifting mechanism, which includes a pull rod, a key, an elastic member, a gear shaft and a gear. The gear shaft is provided with a through hole in the axial direction. A waist-shaped hole is provided, the gear is vacantly sleeved on the gear shaft, the inner ring of the gear is provided with a slot, the pull rod is slidably arranged on the through hole, and the pull rod is provided with the clip key, the elastic part is arranged in the pull rod, and an inclined surface is provided at one end of the key, and the elastic part is connected with the key, and one end of the inclined surface of the key can be stretched by the elastic force of the elastic part. Out of the waist-shaped hole, this shifting mechanism reduces the structure of the synchronizer, and the shifting does not need to move the gear. The space inside the box makes the transmission structure simple and the layout compact, which reduces the cost of the shift mechanism and the gearbox.

Description

technical field [0001] The invention relates to the technical field of shifting transmission devices, in particular to a shifting mechanism. Background technique [0002] Agricultural machinery products need to set different gears due to the need for different speeds. Conventional gear shifts use synchronizers or direct gear shifts. The gear shifting of the synchronizer involves the problems of high machining accuracy and high cost. However, when there is a misalignment of the driving and driven gears in gear shifting, there will be a gear end face impact and the gear cannot be shifted, and there is a defect that the axial dimension is relatively large. Contents of the invention [0003] The purpose of the present invention is: for the gear shifting operation in the existing gearbox in the prior art, the gear shifting is realized through the meshing of the synchronizer and the gear, or the gear moves and shifts, and there is a gap between the synchronizer and each gear, w...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is: for the gear shifting operation in the existing gearbox in the prior art, the gear shifting is realized through the meshing of the synchronizer and the gear, or the gear moves and shifts, and there is a gap between the synchronizer and each gear, which increases the The problem of the space inside the gearbox, and the problem that the gears are prone to misalignment during gear shifting, resulting in the problem that the gear end face cannot be shifted due to impact, provides a gear shifting mechanism

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