A high-precision hydrodynamic sliding bearing comprehensive performance test platform

Abstract

The invention provides a high-precision fluid dynamic pressure sliding bearing comprehensive performance testing platform, which takes a frame as a carrier, wherein a transmission mechanism uses a driving device to drive a main shaft built in an elastic suspension member to rotate, and the elastic suspension member provides floating for the main shaft. The exposed right shaft end of the main shaft is coaxially connected to the test shaft through the expansion sleeve; the loading mechanism relies on the cylinder carried by the crossed roller table to act on the bearing seat of the first bearing on the right side of the main shaft, and apply radial direction to the main shaft. Loading force; the testing mechanism is carried on the movable platform as a whole, including the sliding bearing to be tested coaxially assembled with the main shaft, the triaxial force sensor for measuring the radial force of the sliding bearing to be tested, the air bearing and the Static torque sensor for friction torque of plain bearings. The test platform has reliable connection and easy disassembly and assembly of each shaft section, which is of great significance to the study of various properties of hydrodynamic sliding bearings, and can provide theoretical guidance for the design, manufacture and application of sliding bearings.

Description

technical field [0001] The invention relates to the technical field of sliding bearing testing, in particular to a high-precision fluid dynamic pressure sliding bearing comprehensive performance testing platform. Background technique [0002] Sliding bearings are widely used in various modern machinery and equipment because of their advantages such as high bearing capacity, long service life, and convenient processing and maintenance. The performance research of sliding bearings, including oil film static and dynamic characteristics and bearing capacity, is of great significance to the design and application of sliding bearings. As one of the most important research methods, testing requires the support of a test platform, so it is very important. It is necessary to design a test platform that meets the research needs. As one of the most important types of sliding bearings, hydrodynamic sliding bearings have been widely used due to their good comprehensive properties. [0...

AI Technical Summary

Problems solved by technology

In another type of platform, a multi-channel force and torque sensor is used to measure the radial force and friction torque near the bearing pad at the same time. Large, but limited by the manufacturing accuracy of the multi-channel sensor itself, it is difficult to ensure the measurement accuracy of the friction torque when the load range is satisfied, or even impossible to measure

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