Comprehensive performance testing machine for ultra-high speed oil bearing

Abstract

A comprehensive performance testing machine for an ultra-high speed oil bearing comprises a clamping device for clamping the oil bearing to be tested, a loading device used for applying loading force on the oil bearing to be tested through the clamping device, a dynamic pressure test shaft matched with an inner hole of the oil bearing to be tested, a rotation supporting device used for supporting the dynamic pressure test shaft and a driving device, wherein a temperature measuring hole used for a temperature sensor to be inserted is formed in the top of the clamping device, and both the temperature sensor and the driving device are both connected with an external electric control cabinet; the clamping device is composed of an upper clamping block and a lower clamping block, the oil bearing to be tested is clamped between the upper clamping block and the lower clamping block, the lower clamping block is arranged in a suspended mode through lifting ropes, connected with the loading device, at the two ends of the lower clamping block, and the loading device applies downward loading force on the upper clamping block. The comprehensive performance testing machine for the ultra-high speed oil bearing is overall high in repeatability and accuracy, long in service life, capable of having the self-cooling function, easy to operate and lubricate, simple in structure, low in manufacturing cost, stable in performance, high in intelligence degree and good in practical effect.

Description

technical field [0001] The invention relates to the technical field of powder metallurgy bearing testing, in particular to an ultra-high-speed oil-impregnated bearing comprehensive performance testing machine. Background technique [0002] Oil-impregnated bearings are made of metal powder and other anti-friction materials after pressing, sintering, shaping and oil immersion. Because the organization of powder metallurgy anti-friction materials is porous, lubricating oil can be stored in the gaps in the pores. When the oil-impregnated bearing is sleeved on the shaft to rotate, a pumping action is formed between the shaft and the oil-impregnated bearing, and the lubricating oil seeps out to the wall surface of the inner hole of the oil-impregnated bearing, and contacts with the corresponding shaft to form lubrication; when the shaft stops moving, the lubricating oil The oil will return to the inside of the oil bearing. Oil-impregnated bearings can be used for long-term opera...

AI Technical Summary

Problems solved by technology

[0007] The technical purpose of the present invention is to provide an ultra-high-speed oil-impregnated bearing comprehensive performance testing machine to solve the problem that the oil-impregnated bearing test machine in the prior art is large in size and cannot meet the bearing test requirements. High speed requirements; clamping and loading devices are not stable, and the accuracy is poor; at the same time, the slewing support device has high noise, serious heat generation, and rapid loss of life, which in turn causes technical problems such as large error in test results, poor repeatability, and high test cost

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