Radial sliding bearing wear on-line measuring device based on inductance measurement

Abstract

The invention relates to a radial sliding bearing wear on-line measuring device based on inductance measurement. The technical scheme is characterized in that the device comprises a stator, a rotor, acoil, an iron core, a spring, a roll ball and a signal processor. The stator is coaxially and fixedly connected with a sliding bearing pedestal; the rotor is coaxially and fixedly connected with a rotating shaft; the stator is provided with a radial blind hole; the coil is coaxially fixed outside of the radial blind hole; the spring is arranged in the radial blind hole; the iron core is arrangedin the radial blind hole and is tightly attached to the spring and coaxial with the coil; and the roll ball is arranged in the radial blind hole and between the iron core and the rotor. The coil is used for collecting position change of the iron core, forming a monitoring signal and sending the monitoring signal to the signal processor; and the signal processor is used for analyzing the monitoringsignal and converting the signal into position change amount of the rotating shaft and outputting the position change amount to a data acquisition device. The device can realize on-line measurement of wear of a radial sliding bearing.

Description

technical field [0001] The invention belongs to the technical field of detection, and in particular relates to an on-line detection device for radial sliding bearing wear based on inductance measurement. Background technique [0002] The monitoring methods for the wear state of radial sliding bearings mainly include oil method, temperature method, vibration method and strain method, etc., limited by the use environment of radial sliding bearings, these methods cannot accurately monitor the wear of radial sliding bearings in real time Quantitative detection. Wuhan University of Technology proposed a "Verification Test Bench and Method for Diesel Engine Sliding Bearing Wear Thermoelectric Monitoring System" based on the temperature method (Patent No.: CN 108844739 A). This method can only locate the fault point, but cannot obtain the path Amount of wear to the sliding bearing. [0003] Only by real-time online monitoring of the wear amount of the radial sliding bearing and a...

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Problems solved by technology

[0002] The monitoring methods for the wear state of radial sliding bearings mainly include oil method, temperature method, vibration method and strain method, etc., limited by the use environment of radial sliding bearings, these methods cannot accurately monitor the wear of radial sliding bearings in real time Quantitative detection

Wuhan University of Technology proposed a "Verification Test Bench and Method for Diesel Engine Sliding Bearing Wear Thermoelectric Monitoring System" based on the temperature method (Patent No.: CN 108844739 A). This method can only locate the fault point, but cannot obtain the path Amount of wear to sliding bearings

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