Measuring method for vibration state of antifriction bearing

Abstract

The invention belongs to the technical field of vibration measurement of an antifriction bearing, and particularly relates to a measuring method for a vibration state of the antifriction bearing. Firstly, an effective value VLeq of the bearing is set to four vibration levels. Then, setting of N cumulative percentage vibration level VLN of the bearing is conducted on the different vibration levels, in the setting process of the bearing vibration level, a vibration index VL I is led in, and generalization and summarization are conducted on vibration data. Then, the vibration state of the bearing is measured through a bearing vibration measuring instrument, all vibration data in the measuring process are recorded and classified, and the proportion of each class in general measuring data is calculated. The proportion of the vibration mean effective value VLeq and the proportion of the VLNs is calculated, and the proportions are compared with a standard set VLN level. At last, a standard deviation is calculated, a degree that the bearing deviates from the standard deviation is confirmed, and measurement on vibration state of the antifriction bearing is finished. The measuring method for the vibration state of the antifriction bearing is easy in manufacturing process, scientific, reasonable, accurate in measuring result and capable of being widely applied to measurement and judgment of vibration of various bearings.

Description

technical field [0001] The invention belongs to the technical field of vibration measurement of rolling bearings, and relates to a method for measuring and evaluating the vibration state of rolling bearings, in particular to a method for measuring the vibration state of rolling bearings. Background technique: [0002] At present, the vibration of rolling bearings is a reflection of the quality of bearing processing. Various manufacturing defects in the moving parts of the bearing will produce different vibrations during the rotation of the bearing. The size of the defect and the location of the defect will produce different vibrations. The vibration of the bearing is one of the important sources of bearing noise. If the influence of other factors such as bearing installation and use environment are aside, for bearing manufacturing, the vibration of the bearing is the main source of bearing noise. The noise belongs to the acoustic environment pollution. It will have an impact...

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the shortcomings of the prior art, seek to design and provide a method for inspection, measurement and evaluation of bearing vibration and abnormal fluctuation state, so as to solve the problem of misjudgment and missed judgment in the current bearing vibration measuring instrument to control the abnormal fluctuation of bearing vibration technical problem

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