Gearbox shift device

By setting a drive groove and rolling friction transmission on the shift shaft, the problem of excessively large gearbox shifting device size is solved, achieving a compact layout and efficient transmission of the gearbox, and improving operating comfort and transmission stability.

CN122107115APending Publication Date: 2026-05-29SINO TRUK JINAN POWER CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SINO TRUK JINAN POWER CO LTD
Filing Date
2026-01-29
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing gearbox shifting devices are too large to be effectively integrated into the vehicle.

Method used

By setting a drive groove on the shift shaft, the axial movement function of the shift arm and shift fork shaft is transferred to the shift shaft. The drive groove is set on the lower side of the shift shaft, reducing the vertical dimension of the shift fork shaft. At the same time, the bending arm structure and rolling friction transmission are adopted to optimize the force direction of the linkage and reduce the vertical dimension of the gearbox.

Benefits of technology

It effectively reduces the vertical dimensions of the gearbox, improves the smoothness and comfort of gear shifting, reduces processing difficulty and cost, and enhances transmission stability and durability.

✦ Generated by Eureka AI based on patent content.

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    Figure CN122107115A_ABST
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Abstract

The application provides a gearbox shifting device and relates to the field of gearbox shifting.The device comprises a shell, a shifting shaft rotatingly arranged in the shell, and a selection shifting arm horizontally arranged.The outer surface of the shifting shaft is provided with a driving groove, the driving groove is elongated along one circumferential arc of the shifting shaft, the tail end of the selection shifting arm extends into the driving groove, the tail end of the selection shifting arm can drive the shifting shaft to axially move through the driving groove, the tail end of the selection shifting arm and the driving groove can relatively rotate, and the shifting shaft is provided with a shift fork shaft, which can axially move with the shifting shaft.The application can greatly reduce the space occupation, thereby reducing the vertical dimension of the gearbox and facilitating the spatial layout of the gearbox.
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