A quick manual gear shifting mechanism

By linking the self-locking device and the shift fork assembly, the problem of easy disengagement of the quick manual gear shifting mechanism under vibration is solved, realizing a quick and stable shifting process and reliable power transmission.

CN224453645UActive Publication Date: 2026-07-03SHANDONG NORTHERN SPARK HOLDING GROUP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG NORTHERN SPARK HOLDING GROUP CO LTD
Filing Date
2025-09-30
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing quick manual gear shifting mechanisms lack effective self-locking or positioning devices after rapid engagement, making them prone to disengagement under vibration and axial force, which affects the working stability and safety of the equipment.

Method used

It adopts a self-locking positioning device, which achieves mechanical locking through the engagement of steel balls and grooves to ensure the stability of the meshing position, and achieves quick gear shifting through the linkage of the shift fork assembly and shift fork gear.

Benefits of technology

It achieves quick gear shifting and stable engagement, prevents gear slippage, and improves the operational reliability and transmission efficiency of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of quick manual gear shifting technology, and discloses a quick manual gear shifting mechanism, including a mounting plate, a support shaft, a shift fork shaft, a shift fork gear, a two-speed gear, and a shift drive assembly. The support shaft and the shift fork shaft are fixed to the mounting plate. The shift fork gear is slidably connected to the support shaft via a spline. The shift drive assembly includes a shift fork seat, a shift fork block, and a toothed shift fork, which is slidably connected to the shift fork shaft and is used to drive the shift fork gear to move axially, selectively engaging with the two-speed gear rotatably connected to the support shaft. The key feature is the inclusion of a self-locking positioning device. This device, through the cooperation of a groove on the shift fork shaft and a steel ball, mechanically locks the shift drive assembly after the gear is engaged, stably maintaining the engagement position. This utility model solves the problems of unstable engagement positioning and easy automatic disengagement due to vibration in existing gear shifting mechanisms, achieving the beneficial effects of quick shifting, accurate positioning, and stable and reliable engagement.
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