Friction torque measuring tool for tapered roller bearing under partial load state

By designing a friction torque measuring fixture that uses a motor-driven test shaft and a limit seat to prevent rotation, the problem of unstable measurement under the off-center load of self-aligning roller bearings was solved, and a simple and stable friction torque measurement was achieved.

CN117147154BActive Publication Date: 2026-06-09C&U CO LTD +1
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Patent Information

Application Number
CN202311094963.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-08-28
Publication Date
2026-06-09
Estimated Expiration
2043-08-28

AI Technical Summary

Technical Problem

Existing technologies for measuring the frictional torque of self-aligning roller bearings under eccentric loading conditions are unstable and complex to operate.

Method used

A friction torque measuring fixture was designed, comprising a motor, a sensor, a test shaft, a mounting base, and a limit seat. The test shaft drives the inner ring of the bearing to rotate, and the extension part cooperates with the limit seat to prevent rotation, combined with the loading component, to achieve stable friction torque measurement.

Benefits of technology

The method enables simple and stable measurement of frictional torque under off-center load conditions of self-aligning roller bearings, and is suitable for measuring off-center load conditions of non-standard self-aligning roller bearings.

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Abstract

The application provides a kind of friction torque measuring tool of centripetal roller bearing under eccentric load state, including motor, sensor and test shaft, the test shaft is arranged on the inner ring of the bearing to be measured, the spline part is provided at one end of test shaft, the motor and sensor are sequentially connected at spline part, it further includes mounting seat and limiting seat, the mounting seat is formed by assembling, and mounting seat can be loaded in the outer ring of the bearing to be measured, the other end of test shaft is rotatably provided with extension, the end of extension is used to connect the load of loading piece, and extension is slidably connected on limiting seat, and limiting seat forms anti-rotation cooperation with limiting seat. In view of the deficiency of prior art, the application provides a kind of friction torque measuring tool of centripetal roller bearing under eccentric load state, which is simple to operate and stable in measurement.
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