Device and method for testing lubrication performance of water-lubricated bearing under working condition of axis misalignment

Abstract

A device and a method for testing the lubrication performance of a water-lubricated bearing under the working condition of axis misalignment are provided. The device comprises a mechanical system, a water supply system, and a signal test system. The mechanical system comprises a test shaft, a test bearing, and a bearing sleeve. The test shaft is supported by rolling bearings, and is fixed axially and circumferentially. An aligning ball bearing is installed at the outer side of the bearing sleeve, the outer circle of the aligning ball bearing is connected with a loading rod through a loading ring, axial baffles are installed on the two end faces of the bearing sleeve, outer hexagonal universal balls are used to press against the axial baffles, and the position of the upper right baffle is adjusted by a micrometer head. The water supply system comprises a water tank, a pump, a water return trough, and a pipeline. Water enters the test bearing to lubricate the test bearing, a small gap is left between an end cover and the test shaft, and overflowing water flows back to the water return trough and is filtered and then recycled to the water tank. The signal test system comprises a sensor and a data acquisition system which analyzes and processes acquired data. The lubrication performance of bearings of different materials and structures at different axis tilt angles can be tested accurately.

Description

technical field [0001] The invention relates to the field of performance testing of sliding bearings, in particular to a lubricating performance testing device and testing method for water-lubricated bearings under the condition of misalignment of axes. Background technique [0002] Water-lubricated bearings are sliding bearings with water as the lubricating medium. They have the advantages of safety and environmental protection; resource saving; simple structure, convenient maintenance; low cost; small friction coefficient and good cooling effect. pump. Many research institutions at home and abroad have established water-lubricated bearing test benches to test the bearing capacity and other lubrication characteristics, but most of them study the friction torque, pressure distribution, temperature distribution and displacement of water-lubricated bearings under the condition of axis alignment , without considering the influence of axis tilt on bearing lubrication performanc...

AI Technical Summary

Problems solved by technology

In a small number of test benches that study the performance of sliding bearings under the condition of axis misalignment, the axis inclination is mainly achieved by adding gaskets to the bearing seat or counterweighting the test shaft. The two methods are cumbersome to operate, and the inclination adjustment is discontinuous; in addition, The second method increases the dynamic load on the bearing, and the applicable working conditions are more limited

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