Test-bed for vibration test of rolling bearing

Abstract

The invention discloses a test-bed for a vibration test of a rolling bearing, comprising a test-bed body, a motor, a left test device and a right test device, wherein the motor is a motor with double output shafts, and the left test device and the right test device are connected with the left output shaft and the right output shaft of the motor respectively. The test-bed for the vibration test of the rolling bearing disclosed by the invention can measure the vibrations of two bearings simultaneously, and reduce interference on the vibration measurements of the measured bearings by configuring the motor to be a motor with double output shafts, disposing the left test device and the right test device on the two output shafts of the motor, and omitting a support bearing for supporting the motor; and the test-bed for the vibration test of the rolling bearing disclosed by the invention can perform radial loading on a transmission shaft, and act an axial load by disposing a radial loading device and an axial loading device on the test-bed body, thus being capable of measuring the radial vibrations of the measured bearings in the horizontal direction and the vertical direction.

Description

technical field [0001] The invention belongs to the technical field of bearing vibration testing, in particular to a rolling bearing vibration testing test bench. Background technique [0002] Under certain operating conditions for rolling bearings, vibration characteristics are an important indicator. Therefore, vibration testing of rolling bearings under special testing conditions is an important method and means to evaluate its quality and predict its life. [0003] During the motion of the rolling bearing, in addition to the required main motion, other motions constitute the auxiliary motion of the bearing, and these periodic changing characteristics produce the vibration of the bearing. Vibration measurement generally uses three types of sensors, so that the output vibration signal is proportional to the displacement, velocity and acceleration respectively. The sensor is generally installed directly on the rolling bearing shaft ring, or installed on adjacent component...

AI Technical Summary

Problems solved by technology

However, in the existing vibration test devices, the vibration and noise of the motor will affect the accuracy of the vibration measurement of the tested bearing, and most of the current vibration test devices can only perform vibration measurements in one direction

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