A device for simulating shaft current damage of insulated bearings of subway traction motors

By designing a subway traction motor insulation bearing shaft current damage simulation device, the excitement and DC power supply simulation shaft current and vibration are used to solve the simulation problem of subway vehicle traction motor bearing electrostatic problems, realizing the axial current corrosion work conditions Effective analysis and data collection.

CN113640634BActive Publication Date: 2025-01-28LINGNAN NORMAL UNIV
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Patent Information

Application Number
CN202111058913.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2021-09-10
Publication Date
2025-01-28
Estimated Expiration
2041-09-10

AI Technical Summary

Technical Problem

The electrocorrosion problem of the bearings of the traction motor of subway vehicles is serious, affecting the normal operation of the vehicle. There are few existing simulation test benches, making it difficult to effectively analyze the working conditions of shaft current corrosion.

Method used

Design a subway traction motor insulating bearing shaft shaft current damage simulation device, including driving device, insulation bearing, testing table, axis current analog device, train vibration simulation device and data collection unit. , Implement the simulation of insulating shaft damage.

Benefits of technology

This device can safely and effectively simulate the damage process of subway traction motor bearing, provide real -time data collection, help analyze the laws and effects of the axial current corrosion, and improve the understanding and control of the bearing electrostatic problem of the traction motor.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a subway traction motor insulated bearing shaft current damage simulation device, comprising a driving device, the driving device comprising a traction motor, the traction motor being mounted on a test bench, the traction motor being connected to one end of an experimental main shaft through an insulating coupling, the other end of the experimental main shaft being fixedly connected to an inner ring of an insulating bearing, the insulating bearing being mounted on a loading bearing seat, the loading bearing seat being mounted on the test bench, the test bench being provided with a data acquisition unit, a shaft current simulation device and a train vibration simulation device, the data acquisition unit, the shaft current simulation device and the train vibration simulation device being all connected to the insulating bearing. The invention can simulate the performance degradation process of the subway traction motor insulated bearing under the coupling of mechanical damage, train vibration and current damage and the influence on the life of the insulating bearing, and provide an experimental basis for studying the fault characteristics of the motor bearing.
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Citation Information

Patent Citations

  • Subway traction motor insulation bearing shaft current damage simulation device

    CN215813156U