Device and method for measuring dynamic unbalance of small-mass cylindrical rollers in high-speed bearings

By using non-contact air-floating support and laser sensor in the dynamic imbalance measurement and measurement device of the high-speed bearing small mass cylindrical roller, the problem of difficulty in detecting dynamic imbalance measurement and measurement of high-speed bearing small mass cylindrical rollers in high-precision is solved, and high-speed non-destructive detection and high-precision measurement are realized.

CN114518195BActive Publication Date: 2025-03-25HENAN UNIV OF SCI & TECH
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Patent Information

Application Number
CN202210101317.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-01-27
Publication Date
2025-03-25
Estimated Expiration
2042-01-27

AI Technical Summary

Technical Problem

The prior art is difficult to detect dynamic imbalance measurement of small mass cylindrical rollers with high-precision bearings with high-speed bearings with high-speed detection, damage to the roller surface and measurement results are not accurate enough.

Method used

A high-speed bearing small-mass cylindrical roller dynamic imbalance measurement device including replaceable air float sleeves, sliding tables, guide rails, detection rods, preloaded screws, support plates and laser sensors is used to measure vibration parameters through non-contact air float support and laser sensors to achieve high-speed non-destructive detection.

Benefits of technology

It realizes high-speed non-destructive testing of dynamic imbalance measurement of cylindrical rollers, improves measurement accuracy, simplifies the device structure and volume, and can adapt to the measurement of different types of rollers.

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Abstract

The present invention relates to a device and method for measuring the dynamic unbalance of a small-mass cylindrical roller of a high-speed bearing, wherein the measuring device comprises a replaceable air-floating sleeve, a slide, a guide rail, a detection rod, a pre-tightening screw, a support plate and a laser sensor, wherein the replaceable air-floating sleeve can be detachably mounted on the slide, and the replaceable air-floating sleeve has a receiving hole for non-contact air-floating support of the roller to be measured; a track groove is provided in the guide rail, and the slide is movably arranged in the track groove, and air outlet holes for air-floating the slide are provided on the top surface, the bottom surface and both side surfaces of the track groove; the support plate is symmetrically mounted at both ends of the guide rail, and the pre-tightening screw is installed on the support plate through and through, and one end of the detection rod passes through the pre-tightening screw and is threadedly connected to the slide, and is fastened by a locking nut, and a spring is provided between the pre-tightening screw and the locking nut; the other end of the detection rod has a detection end face, and the laser sensor is used to detect the vibration of the detection end face. The present invention can realize high-precision non-destructive detection of the dynamic unbalance of the cylindrical roller.
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