Bearing radial clearance measurement method and device based on laser transmission

Abstract

The invention provides a bearing radial clearance measurement method and device based on laser transmission, and relates to the field of bearing parameter measurement. The method comprises the steps: receiving first emergent light emitted after diffraction based on the diffraction of incident light in a bearing radial clearance in a static state, and obtaining a first emergent light parameter; based on diffraction of the incident light in the radial clearance of the bearing in the rotation state, receiving second emergent light emitted after diffraction, and obtaining a second emergent light parameter; and combining the diffraction pattern of the first emergent light with the first emergent light parameter to obtain the static clearance of the bearing, and combining the diffraction pattern of the second emergent light with the second emergent light parameter to obtain the working clearance of the bearing. The problems of inconvenience, high difficulty and low efficiency of bearing radial clearance measurement in the prior art are solved. Based on the diffraction process of laser in the metal slit, the corresponding relation between the radial clearance of the bearing and the intensity and mode of emergent light after diffraction is established, the measurement of the radial clearance in the bearing is realized, the method is suitable for the measurement process of bearings of different specifications, and the requirements of measurement precision and efficiency are met.

Description

Technical field [0001] The present disclosure relates to the field of bearing measurement parameters, in particular, to bearing radial clearance measuring method and device based on laser transmission. Background technique [0002] Inner bearing radial clearance is the total distance of movement of the inner and outer rings of the radial bearing. In actual application, play important parameters directly affect the rolling bearing performance: When the bearing operating clearance is too small, the bearing friction torque is increased, so that a large amount of heat, the heat is easy to damage the bearing; a bearing when the natural tour when the gap is large, the operational clearance is relatively large, which will cause large vibrations in the machinery during operation, resulting in reduced bearing life. [0003] To ensure the reliability of rolling bearing performance, we must ensure that clearance can meet the state required standard, which requires the original bearing clear...

AI Technical Summary

Problems solved by technology

At present, the radial clearance measurement of bearings is relatively cumbersome. For example, by testing the strain distribution on the outer surface of the outer ring of the bearing, the internal radial clearance of the bearing can be derived; Repeated measurement of clearance

When measuring the radial clearance, it is necessary to install the bearing on a special bearing seat and carry out structural modification of the bearing to be tested. The versatility is poor, and the measurement efficiency is low. It is difficult to meet the radial clearance measurement of large quantities of bearings with different specifications. need

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