Multi-parameter sensor for condition monitoring of train running parts

Abstract

The invention discloses a train running part state monitoring multi-parameter sensor comprising an outer shell 1, a pedestal 2, a lead wire connecting head 3, an electric charge amplifier 4, a mass block 5, a vibration and impact sensitive device 6, a current-limiting resistor 7, a temperature sensitive device 8, a temperature-sensitive logic element 9 and a seal sheet 10. Four kinds of parameters that are vibration parameters, impact parameters, temperature parameters and temperature-sensitive logic state parameters of key components of a running part of a train can be monitored in a concentrated manner; strong electromagnetic interference in train running part state monitoring processes can be effectively inhibited; a problem that single end output sensors usually used in conventional train running part state monitoring processes are low in anti-interference capabilities can be overcome; misdiagnosis or missed diagnosis caused due to misfunctioning sensitive elements in the conventional train running part state monitoring processes can be prevented; application requirements for train running part operating state monitoring and fault diagnosis can be satisfied.

Description

technical field [0001] The invention relates to a special sensor used for train running state monitoring and fault diagnosis, in particular to a multi-parameter sensor used for train running part state monitoring. Background technique [0002] The operation safety status monitoring of the train running department is an important part of the railway traffic safety guarantee information system. It realizes real-time monitoring of the running status of the running train through on-board sensors and monitoring devices, and can detect vehicles or parts in poor running status in time. It is of great significance to provide first-hand data for the maintenance of rolling stock to ensure the safety of railway traffic and improve the level of maintenance of rolling stock. Sensor technology, as one of the three foundations of information technology, is a high technology that all developed countries are competing to develop. The sensor is similar to the sensory organs that human beings...

AI Technical Summary

Problems solved by technology

Practice has shown that the separate shaft temperature monitoring and alarm is not comprehensive and incomplete. Although the monitoring effect has been improved to a certain extent through the method of comprehensive monitoring of temperature and vibration, there are still some problems: the single-ended output of the vibration shock monitoring sensor The method will cause misdiagnosis and misjudgment due to the strong electromagnetic interference of the walking part, and at the same time, it cannot avoid misdiagnosis or missed diagnosis caused by the failure of sensitive components

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