Eccentricity adjustable sliding bearing test device

Abstract

The invention discloses an eccentricity adjustable sliding bearing test device, which is suitable for a half-bush and full-bush sliding bearing bush test. A driving motor is fixedly connected to a main shaft, and is connected to a test sliding bearing bush at the end of the main shaft; and the sliding bearing test under different eccentric conditions is simulated by accurately monitoring and quantitatively adjusting the position of the test bearing bush in the horizontal and vertical directions, so that each performance indicator of a high-speed and heavy load sliding bearing under different eccentric conditions is output. An end cap flange of the end of the bearing bush of the sliding bearing test device is provided with horizontal and vertical displacement sensors for monitoring the eccentricity of the bearing bush and the shaft neck. A plurality of pressure sensors and temperature sensors are arranged at different positions on the side of the test bearing bush for measuring the oilfilm pressure and the oil film temperature at different positions under the same eccentric amount. A loading device is located on the side of the test bearing bush for applying different external loads, so as to monitor the sliding bearing test under different loads. The eccentricity adjustable sliding bearing test device has a simple structure, convenient assembly and disassembly, and high measurement precision.

Description

technical field [0001] The invention relates to the test technology of the supporting bearing of the rotating machine, in particular to an adjustable eccentric sliding bearing test device. Background technique [0002] Rotating machinery is the key equipment in aviation, aerospace, electric power, metallurgy, transportation, power and other industrial fields. Bearings are the supporting components of rotating machinery and play an extremely important role. In recent years, with the increasing speed, heavy load and complex structure of rotating machinery, the requirements for bearing performance are also getting higher and higher. Among them, sliding bearings are widely used in extremely high-speed, large-scale and heavy-duty machinery due to their unique advantages. On the one hand, the surface of the sliding bearing and the supported part are separated by the lubricating medium without direct contact, thereby greatly reducing the friction and wear of the supporting surfac...

AI Technical Summary

Problems solved by technology

In the previous design of the inverted test bench, although the geometric size adjustment of the bearing can be realized, it is difficult to realize the precise adjustment and fixation of the bearing position; when the main shaft rotates at a high speed, the change of the eccentric state makes the reflected performance index of the sliding bearing unreliable

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