High speed bearing friction torque measuring system

Abstract

The present invention discloses a high speed bearing friction torque measuring system, and relates to the field of bearing performance testing. The system solves the problem that a test bench used formeasuring a bearing friction torque is limited by a bearing structure and bearing capacity in the prior design, an axial load applied to the bearing cannot reach a high level, and finally the bearingfriction torque cannot be accurately measured. A limiting step is provided on a main shaft for limiting axial position of the first bearing to be tested, an axial load measuring device is used to measure the axial load force applied to the two bearings under testing, an axial load applying device is used for squeezing and applying the axial load to the second bearing to be tested, a sleeve is sleeved on the axial load measuring device and outside of the two bearings to be tested at the same time, a tension sensor is connected to outer wall of the sleeve through a wire rope, the tension sensoris used to pull the sleeve, when the main shaft rotates, the sleeve is at an equilibrium position to measure the frictional torque of the two bearings to be tested under the axial load. The system isused to measure the frictional torque of the bearings under the axial load.

Description

technical field [0001] The invention relates to a service performance test bearing under high-speed and heavy-load conditions, and can measure the friction moment of the bearing under relatively high axial load and relatively high rotational speed, belonging to the field of bearing performance test. Background technique [0002] At present, there are many test benches for measuring bearing friction torque, which can realize the measurement of friction torque under axial load. In order to reduce the influence of external friction on the accuracy of friction torque measurement under bearing axial load, the tested bearing is tested. Air bearings are usually used for loading, and the measurement accuracy of friction torque can be improved by reducing the introduction of external friction. Force sensors, torque sensors, and displacement sensors can be used to indirectly measure the friction torque of bearings during measurement, but the impact of air bearings is limited. Due to t...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the existing test bench for measuring bearing friction torque is limited by the bearing structure and bearing capacity, the axial load applied to the bearing cannot reach a high level, and finally the bearing friction torque cannot be accurately measured. question

High-speed bearing friction torque measurement system is now available

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