High-precision fluid dynamic pressure sliding bearing comprehensive performance test platform

Abstract

The invention provides a high-precision fluid dynamic pressure sliding bearing comprehensive performance test platform which takes a rack as a carrier, a transmission mechanism in the rack drives a main shaft arranged in an elastic suspension member to rotate by a driving device, the elastic suspension member provides floating support for the main shaft, and the exposed right shaft end of the mainshaft is coaxially connected with a test shaft through an expansion sleeve; a loading mechanism acts on a bearing seat of a first bearing supporting the right side of the main shaft through an air cylinder borne by a crossed roller workbench, and applies radial loading force to the main shaft. The test mechanism is integrally borne on a movable platform and comprises a sliding bearing to be tested, a three-axis force sensor, an air bearing and a static torque sensor, wherein the sliding bearing to be tested and the main shaft are coaxially assembled, the three-axis force sensor is used for measuring radial force of the sliding bearing to be tested, and the static torque sensor is used for measuring friction torque of the sliding bearing to be tested. All shaft sections of the test platform are reliable in connection and easy to disassemble and assemble, the test platform has important significance in researching all properties of the fluid dynamic pressure sliding bearing, and theoretical guidance can be provided for design, manufacturing and application of the sliding bearing.

Description

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

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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