Device and method for measuring frictional moments of deep groove ball bearings under gravity or microgravity

Abstract

The invention discloses a device and method for measuring the friction moment of a deep groove ball bearing under gravity or microgravity, and relates to the field of bearing friction force measurement. The device comprises a mounting plate, and is characterized in that a torque sensor and an eccentric block are coaxially mounted on the mounting plate; a to-be-tested deep groove ball bearing sleeves a transmission shaft between the torque sensor and the eccentric block; a driving device is mounted on the mounting plate so as to drive the torque sensor to rotate, and the eccentric block is driven to rotate. Accordingly, gravity disturbance of a load is eliminated, the problem that the friction force of the deep groove ball bearing under the microgravity has difficulty in direct measurementis solved, and measurement of the friction force of the deep groove ball bearing under the microgravity is more convenient and accurate.

Description

technical field [0001] The invention relates to the field of bearing friction measurement, in particular to a device and method for measuring friction torque of deep groove ball bearings under gravity or microgravity. Background technique [0002] In today's era, the application of mechanical parts in the aerospace field is becoming more and more extensive. Among them, deep groove ball bearings are an important part of mechanical equipment, and their life and precision play a vital role in social production and manufacturing. The friction torque of the bearing is often used to measure the frictional resistance of the bearing, and the frictional resistance of the bearing has an important impact on the service life and accuracy of the bearing. Therefore, the study of bearing friction torque characteristics under load under simulated actual working conditions of bearings can be used to predict the service life and accuracy of bearings under different gravity conditions, which h...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of difficulty in measuring the friction force of deep groove ball bearings in a microgravity environment, the present invention provides a device for measuring the friction torque of deep groove ball bearings under gravity or microgravity. Realize the measurement of friction torque of deep groove ball bearings under different speeds and loads

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