Rolling bearing test table and test method

Abstract

The invention discloses a rolling bearing test table and a test method, and belongs to a bearing test device and method. According to the rolling bearing test table, middle sleeves are installed at the two ends of a tester shell, a main shaft is installed in the shell in the axial direction in a penetrating mode, a radial bearing loading device and an axial bearing loading device are arranged on the shell, a front-end tested bearing sleeve and a rear-end tested bearing sleeve are installed at the front end and the rear end of the main shaft respectively, a process bearing is installed in the middle of the main shaft, the two ends of the process bearing sleeve are sleeved with medium isolation rings respectively, a medium supply system is connected with a pipeline thereof, and a transmission system and the main shaft are in transmission connection. According to the invention, the rolling bearing test table is reasonable in structure, the process bearing and the tested bearing on the tester main shaft are the same in stress and cooling medium working conditions, and two bearings can be tested at a time, so that the efficiency is improved, and the test cost is saved; the locking sleeve can effectively prevent the bearing sleeve and the tester shell from rotating relatively; and the medium isolation ring is arranged at the process bearing, so that the hedging of medium discharged by the two bearings is effectively prevented, and the damage rate of the bearings in the test process is reduced.

Description

technical field [0001] The invention belongs to a bearing testing device and method, in particular to a rolling bearing test bench and a testing method. Background technique [0002] Bearings are essential components used in rotating machinery. The performance of the bearings is directly related to the working status of the entire rotating shaft system. When the bearing fails, it will cause damage to the entire shaft system. In severe cases, the entire equipment will be scrapped and major accidents will occur. , especially in key industries such as aerospace, generator sets, and nuclear power, bearings are not only the core key components, but their damage can cause catastrophic accidents. [0003] The quality indicators of bearings include several key indicators such as rotational speed and load bearing, etc., in order to ensure the realization of these indicators in terms of design and manufacture. After the production of the bearing is completed, some inspections should ...

AI Technical Summary

Problems solved by technology

[0004] At present, there are several main problems in the bearing test bench system at home and abroad: most of the test systems are simple, and the bearing parameters are usually obtained by the test method of spindle operation at room temperature, and then the high and low temperature state parameters are simulated and calculated; most of the bearings are loaded by preloading For fixed value loading, the variable load test and increased strength test cannot be carried out during the operation of the bearing, and some bearings can only be loaded in the axial direction, but not in the radial direction; although some loading is continuous, the measurement of the loading force is inaccurate; Most of the test bearing medium is the only medium and cannot be used universally; most of the power and transmission are driven by motors, but the test of liquid hydrogen and liquid oxygen medium is extremely dangerous

The publication number is CN109975022A, and the name is the test device and test method for the fatigue life of ultra-low temperature and high DN value bearings. Although the above problems have been solved to a certain extent, due to its unreasonable structural design, there are the above problems: 1. Its "diameter The load application position is biased to the side of the tested bearing 5, that is, L1

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