Bearing integrated dynamic performance test device and method

Abstract

The invention relates to the technical field of bearing testing, in particular to a bearing integrated dynamic performance test device and method. The bearing integrated dynamic performance test device comprises a drive system, a transmission system, a measurement and control system, an environmental simulation system and a mechanical body structure. A motor is adopted by the drive system for driving. The measurement and control system controls the rotation speed of the motor. The transmission system is in a belt transmission mode or a coupler transmission mode. The measurement and control system is provided with a force sensor, a strainmeter, an eddy current transducer, a rotation speed sensor, a laser displacement sensor, a temperature sensor, a magnetic oil residue sensor, a pressure sensor, a flow sensor, an oil temperature sensor, an acceleration sensor and other related sensors used for bearing testing. The control system is driven in a servo mode, and is composed of a frequency converter, a hydraulic solenoid valve, a heating controller, a flow control device and a pressure control device. The environmental simulation system is adopted for simulating a real bearing testing working condition, and the performance and service life testing of the real bearing testing working condition is achieved.

Description

technical field [0001] The invention relates to the technical field of bearing testing, in particular to a bearing comprehensive dynamic performance testing device and a testing method thereof. Background technique [0002] Bearing is one of the key components in rotating machinery, and its performance directly affects the performance and life of rotating machinery. Among them, the rolling bearing is the most widely used bearing, and the bearing test device and its testing technology are of great significance for the research and testing of the rolling bearing performance. [0003] Manufacturers at home and abroad have developed bearing testers for bearing testing. Such as SKF's R2, R3 rolling bearing fatigue life strengthening testing machine, Hangzhou Bearing Test Research Center Co., Ltd.'s ABLT-1A, ABLT-2A rolling bearing fatigue life strengthening testing machine and other testers. However, most domestic experimental devices cannot simulate the real working environmen...

AI Technical Summary

Problems solved by technology

There is a problem of motor drive bias, and the two bearings under test have the disadvantages of uneven force and asymmetry, so the performance of the left and right bearings under test is affected by the structure of the tester

At the same time, the multifunctional fatigue life test bench for rolling bearings (ZN201010152411.4) adopts the method that the drive motor is directly connected to the belt pulley to drive the main shaft to rotate. The joint of the motor bearing flywheel bears radial force, which is easy to cause the motor and the test main shaft to be out-of-axis, affecting the transmission efficiency, and Bending moments are generated on the motor shaft and internal bearings, which affect the service life of the motor shaft and internal bearings

[0005] At present, most bearing testers load bearings or sleeves on the main shaft of the bearing, and achieve the purpose of applying radial load to the inner ring of the bearing through the main shaft, but cannot realize the radial load simulation of the outer ring of the bearing, especially the simulation of the radial load on the inner ring of the bearing. Under working conditions, the outer ring is subjected to a complex load case of impact load

At the same time, the loading bearing on the main shaft directly bears a large radial force, so it is easy to be damaged. It is necessary to disassemble the two tested bearings frequently and replace the loaded bearing. It is relatively troublesome to disassemble the tested bearing and the loaded bearing, and the disassembly process is not conducive to the continuity of the test. performance, disassembly has a serious impact on the test

[0006] The test technical parameters of the existing bearing tester are mostly the vibration of the bearing, the oil temperature, the temperature of the outer ring of the bearing and other parameters. , high-efficiency, and multi-parameter bearing testing requirements

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