Testing device and method for inspecting bearing

Abstract

The invention relates to a testing device and method for inspecting a bearing, the testing device comprises a rack, a correction assembly and a testing assembly, the testing assembly comprises a supporting frame, a connecting sleeve is arranged on the supporting frame, the connecting sleeve is of a cavity structure, rolling bearings are arranged at the two ends of the connecting sleeve, the inner rings of the rolling bearings are fixed on a rotating shaft, One end of the rotating shaft is provided with a test mold, the test mold is provided with a plurality of grooves which are distributed in a circumferential manner, each groove is provided with a moving block, and the moving blocks are used for fixing the inner ring surface of a bearing to be tested. According to the invention, bearings with different inner ring diameters can be tested by adjusting the positions of the moving blocks, and the positions of the moving blocks can be adjusted to simulate the relative displacement of the bearing between the inner ring of the bearing and the shaft in various different temperature scenes, so that the device and method have guiding significance for the bearing in an actual working scene.

Description

technical field [0001] The invention relates to the field of bearing testing, in particular to a testing device and method for testing bearings. Background technique [0002] Rolling bearings are one of the most widely used and easily damaged parts in rotating machinery, and their failure directly leads to about 30% of mechanical failures. Therefore, the diagnosis and prediction of rolling bearing faults is essential to ensure the safe and stable operation of mechanical equipment and prevent accidents caused by bearing damage. Downtime, downtime and equipment damage are of great significance. Rolling bearings are often subject to improper assembly, poor lubrication, moisture or foreign matter intrusion, corrosion and overload fatigue, etc., resulting in failure forms such as fatigue spalling, wear, plastic deformation, rust and electrical corrosion, cracks and fractures, gluing and cage damage. [0003] Secondly, with the development of modern machinery towards high speed, ...

AI Technical Summary

Problems solved by technology

The continuous increase of the speed has correspondingly brought about a series of problems such as increased friction and heat generation of the bearing, reduced fatigue life, slippage of the cage and rolling elements, damage to the rolling surface, and instability of the cage. The problems caused by the high-speed operation of the bearing, this Will directly affect the working performance and life of the spindle-bearing system

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