Friction test device for metal material

By designing a friction testing device with a hollow shaft torque motor and cam mechanism, the problem that existing devices cannot simulate actual friction conditions has been solved, achieving higher accuracy of test data and equipment stability, and ensuring test safety.

CN122306604APending Publication Date: 2026-06-30NANJING TAIQIRUI NEW MATERIAL TECH CO LTD
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Patent Information

Application Number
CN202610255416.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-03-04
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing metal material friction testing equipment cannot effectively simulate actual friction conditions, resulting in significant differences between test data and actual data, and also raises issues regarding equipment stability and safety.

Method used

A friction testing device comprising a hollow shaft torque motor, a friction part, a load-bearing part, and a variable force part was designed. It is capable of performing fixed-position rotational friction and circumferential rotational friction tests. It adopts constant pressure and variable pressure forms to simulate the actual friction state. The friction force is adjusted by a lifting mechanism and a cam mechanism to ensure the safety of the sample in the test chamber.

Benefits of technology

It improves the consistency between experimental and actual data, enhances the stability and safety of the equipment, better simulates actual friction conditions, and reduces experimental errors.

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Abstract

The invention provides a friction test device for a metal material, the friction test device comprises a rack, a hollow shaft torque motor, a friction part, a bearing part and a variable force part, the hollow shaft torque motor is installed on the rack through a stator of the hollow shaft torque motor, an inner cavity of an inner cylinder of the hollow shaft torque motor is a detection cavity, a friction driving motor of the friction part is installed on the rack and is connected with a friction seat, and the friction seat is connected with the bearing part. The friction seat extends into the detection cavity and is provided with a friction head; a spring is mounted between a loading plate and a bearing plate of the bearing part; an outer gear of the bearing plate is meshed with an inner gear of the inner cylinder; a disc cam of the variable force part is used for driving the force bearing plate to reciprocate along the vertical direction so as to change the pressure between the friction head and the sample. According to the invention, friction tests in various forms such as a rotary friction test, a surrounding rotary friction test, a constant pressure and a variable pressure can be carried out, so that the actual friction state is simulated as much as possible, the difference between test data and actual data is reduced, and the consistency between the test data and the actual data is improved.
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