A transmission assembly

By adopting an up-and-down sliding shift shaft and shift cylinder structure in the gearbox, the shift fork design is eliminated, thus achieving gearbox miniaturization, solving the problem of large size caused by shift fork adjustment, and improving the applicability and stability of the equipment.

CN224283430UActive Publication Date: 2026-05-26LEIYIER PRECISION MASCH TECH (CHANGZHOU) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LEIYIER PRECISION MASCH TECH (CHANGZHOU) CO LTD
Filing Date
2025-08-11
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing gearboxes require shift forks for adjustment during gear changes, resulting in a large device size that is inconvenient for installation and use on certain equipment, thus reducing its applicability.

Method used

The gear shifting system uses a shift shaft that slides up and down in conjunction with a shift cylinder to achieve gear shifting, eliminating the shift fork structure. Gear shifting is achieved through the meshing of the shift gear ring and the main gear ring. The cylinder drives the shift shaft to rise and fall, and the combination of angular contact bearings and ball bearings improves stability.

Benefits of technology

It effectively reduces the size of the gearbox assembly, facilitates the installation and use of different equipment, improves the applicability and operational stability of the equipment, and extends the service life of the shift cylinder.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224283430U_ABST
    Figure CN224283430U_ABST
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Abstract

This utility model discloses a gearbox assembly, comprising: a housing, a housing cover detachably mounted on the upper end of the housing, an input shaft rotatably mounted on the left side of the housing, a main shaft rotatably mounted on the right side of the housing, and a shift shaft positioned in the middle of the housing; an input gear ring mounted on the input shaft, a shift gear ring one mounted on the shift shaft, a main gear ring one mounted on the main shaft for engaging the shift gear ring one, a shift gear ring two mounted on the lower half of the shift shaft, a main gear ring two mounted on the lower half of the main shaft for engaging the shift gear ring two, and a shift cylinder mounted on the housing cover for driving the shift shaft to rise and fall. This utility model has a reasonable structure, achieving gear shifting without the need for a shift fork, effectively reducing the size of the device, facilitating installation and use in different equipment, and better meeting usage needs.
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