Torque limiter based on roller friction braking
By using a torque limiter based on roller friction braking, the problems of increased weight and size and friction plate adhesion of traditional friction plate torque limiters are solved. Overload protection of the transmission system is achieved, with a smaller size and weight, and stronger braking capacity.
CN122407697APending Publication Date: 2026-07-17QINGAN GROUP CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- QINGAN GROUP CO LTD
- Filing Date
- 2026-04-10
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
The torque limiter structure in existing high-lift systems is not suitable for large overload protection loads, resulting in increased product weight and size, and also causing friction plate adhesion problems.
Method used
A torque limiter based on roller friction braking is adopted. The roller friction pair is triggered by the elastic deformation of the drive shaft under the transmitted load to hold the brake, thereby realizing the overload protection of the transmission system.
Benefits of technology
It achieves advantages in terms of size and weight, effectively protects the drivetrain from overload, and has a simple structure with high braking angle and capacity.
✦ Generated by Eureka AI based on patent content.
Smart Images

Figure CN122407697A_ABST
Abstract
本发明提供一种基于滚子摩擦制动的力矩限制器,包括输入壳体1、输入轴2、传动轴10、输出轴8、滚子6、固定壳体5、输出壳体7,其中:传动轴10一端与输入轴2花键或键连接,另一端与输出轴8花键或键连接;固定壳体5与输入壳体1固定连接,固定壳体5与输出壳体7固定连接;输入轴2一端为六面形,六面等宽等长,六处面宽度均长于滚子6长度,且每处面连接处设置圆角过渡;输出轴8一端设置有凹槽,凹槽有六处,沿输出轴8圆周方向均布排列,凹槽长度等于滚子6长度,凹槽宽度等于滚子6直径。
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