Bearing testing machine

Abstract

The invention provides a bearing testing machine. The bearing testing machine comprises a spindle and axial loading mechanisms. A first testing bearing and a second testing bearing sleeve the front portion and the rear portion of the middle of the spindle in parallel. A testing accompanying bearing is assembled at the front end of the spindle, the axial loading mechanisms comprise a first axial loading mechanism and a second axial loading mechanism, the first axial loading mechanism applies forward first axial loading force to the outer ring of a first test bearing without influencing a secondtest bearing, and the second axial loading mechanism applies backward second axial loading force to the outer ring of the testing accompanying bearing. A front spacer bush and a middle spacer bush for transferring the second axial loading force to the inner ring of the second test bearing backwards sleeve the spindle. In a test, different kinds of axial loading force are applied to the two test bearings through the two axial loading mechanisms, the two test bearings can bear different axial loads, and therefore the situation that the axial loads borne by the two bearings in the actual workingcondition are different and disproportionate can be simulated conveniently, and the performance and service life of the bearings in the actual work condition can be detected more objectively and truly.

Description

technical field [0001] The invention relates to a bearing testing machine, in particular to a loading device and a method of the bearing testing machine. Background technique [0002] As a key component of an industrial system, a bearing's performance and life directly affect the life and performance of related equipment. The quality of the bearing performance needs to be verified by simulating its actual working conditions on the bearing testing machine. At present, a conventional bearing testing machine can test one or two sets of bearings at the same time, and the load loaded on the test bearing by the loading device of the bearing testing machine is usually equal or in a certain proportion, such as the Chinese invention patent application publication number CN108613810A A high-speed angular contact ball bearing temperature rise detection test device and method, the device includes a base, a spindle mounting frame and an electric spindle are fixed on the base, the electr...

AI Technical Summary

Problems solved by technology

Therefore, in this test device, the two sets of test bearings in each set of angular contact ball bearing assemblies are subjected to the same axial load, however, in actual working conditions, the two sets of bearings in a set of bearings do not always bear the same load. The above-mentioned experimental device in the prior art cannot simulate the fact that the axial loads on the two sets of test bearings in the actual working conditions are different and not in a certain proportion, so that the actual working conditions of the bearings cannot be simulated more realistically. Therefore, it is impossible to objectively and truly detect the performance and life of the bearing under actual working conditions

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