一种变速箱及工程机械

By using a limit ring and a limit tooth in the gearbox, the problem of gearbox wear caused by gear ring movement is solved, thus improving the reliability and stability of the gearbox, extending its service life, and reducing production costs.

CN224515877UActive Publication Date: 2026-07-17柳工柳州传动件有限公司 +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
柳工柳州传动件有限公司
Filing Date
2025-07-25
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing engineering machinery gearboxes, the gear ring moves under tilting conditions, causing wear on the inner wall of the gearbox. In addition, the limiting structure has high material requirements and is prone to cracking, affecting the reliability and stability of the gearbox.

Method used

The limit ring and the limit tooth are connected by an insertion. The combination of the limit ring and the retaining ring achieves reliable positioning of the toothed ring, avoiding direct contact and friction between the housing and the toothed ring. The limit ring is made of high-hardness steel with a surface hardness of 45HRC-58HRC.

Benefits of technology

It effectively avoids wear and tear on the gearbox, extends the service life of the gearbox, is suitable for complex working conditions, and reduces production costs and time.

✦ Generated by Eureka AI based on patent content.

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Abstract

本实用新型属于工程机械技术领域,公开了一种变速箱,其包括箱体、限位环与挡圈,其中箱体内设有齿圈,箱体开设有容置槽,容置槽的槽壁设有限位齿,限位环用于限位齿圈,限位环插接于容置槽内并与容置槽的内周壁相贴合,限位环开设有与限位齿相对应的限位孔,限位齿与限位孔插接配合,挡圈卡接于限位环和限位齿上;工程机械包括上述的变速箱,还包括车体,箱体设于车体内。本实用新型提供的变速箱,既能对齿圈进行可靠稳定的限位,又能避免变速箱的箱体直接与齿圈接触摩擦而导致磨损,延长箱体使用寿命,确保工程机械可靠稳定运行。
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