Measuring method for left-right skew swing state of rolling bearing roller

Abstract

The invention discloses a measuring method for a left-right skew swing state of a rolling bearing roller. The method adopts a mode that two ultrasonic sensors are installed in parallel in the length direction of the roller; reflected signals of the two ultrasonic sensors on a contact interface between the inner surface of an outer ring of a rolling bearing and the roller are synchronously collected; the reflectivity of ultrasonic signals of the ultrasonic sensors is calculated; time difference information corresponding to the minimum value of the reflectivity measured by the parallel ultrasonic sensors is extracted; the revolution speed of the roller is used for converting the time difference information into a left-right skew swing displacement value; the left-right skew swing state of the roller under a real working condition is judged; a running state of the roller and a state of contact between a roller path and the roller in an actual operation process are judged; and a working state of the bearing at the moment can be judged. Major accidents caused by left-right skew swing of the bearing roller can be effectively reduced, so that personnel and property loss can be reduced.

Description

technical field [0001] The invention belongs to the technical field of detection of the operating state of rolling bearings under real working conditions, and in particular relates to a measuring method for the left and right tilting swing states of rolling bearing rollers. Background technique [0002] Rolling bearings are widely used in modern industries such as aerospace, energy and power, chemical industry, and marine ships due to their large radial load-carrying capacity and high rotational accuracy. It plays an important role in transmitting force and torque, and is a key component in rotating machinery. Its operating safety and working life are closely related to the state of the rollers' tilting and swinging under actual working conditions. During the actual working process of the bearing, due to the bending of the shaft, the inner ring of the bearing is not concentric with respect to the shaft and the outer ring is relative to the bearing seat, and the bearing will ...

AI Technical Summary

Problems solved by technology

In the actual working process of rolling bearings, due to the left and right swings of the rollers, the service life of the bearings is significantly reduced, and the safety is reduced. Data acquisition is very necessary

Due to the fact that the roller skew is very small and difficult to measure under actual working conditions, the existing test methods are not enough to effectively obtain the roller skew data under real working conditions, which is one of the important factors restricting the development of my country's bearing industry

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