Dynamic property real-time monitoring system of railway turnout

A real-time monitoring system and dynamic characteristics technology, applied in the direction of railway vehicle shape measuring device, railway car body parts, railway auxiliary equipment, etc., can solve the problems of low driving safety, large maintenance investment, hidden safety hazards, etc., and achieve scalability strong effect

Inactive Publication Date: 2015-07-22
EAST CHINA JIAOTONG UNIVERSITY
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Problems solved by technology

As an important part of the railway track, the turnout has the characteristics of complex structure, short life, low driving safety, and large maintenance investment.
With the intensification of wheel-rail dynamics, the service life of turnouts is

Method used

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  • Dynamic property real-time monitoring system of railway turnout

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Embodiment Construction

[0008] A real-time monitoring system for the dynamic characteristics of a railway turnout, comprising a rosette acquisition device, an acquisition module NI 9237, an acquisition module NI 9234, a software custom controller NI cRIO-9068, an acceleration sensor, and a real-time monitoring and processing system for the dynamic characteristics of a turnout, characterized in that, The main function of the strain rosette collection device is to convert the strain of the rail into the resistance of the rosette. The strain rosettes are respectively attached to the two sections of the middle of the rail waist and the mid-span of 110mm in the wheelbase. The direction of the strain gauges in the strain rosette is the same as The rails are at a 45° angle in the longitudinal direction, and the strain rosettes in each position are bridged by cables. The output end of the bridge circuit is connected to the bridge box matched with the acquisition module NI 9237, and the output end of each bridg...

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Abstract

The invention discloses a dynamic property real-time monitoring system of a railway turnout. The dynamic property real-time monitoring system of the railway turnout comprises a strain rosette collection device, a collection module, a software customization controller and an acceleration sensor. Strain rosettes are stuck to the two section faces, away from the midspan by 110 mm, of central shafts on the two sides of a rail waist respectively, and 45-degree angles are formed between the directions of strain gauges in the strain rosettes and the longitudinal direction of a steel rail. The strain rosette at each position is bridged through a flexible flat cable, the output ends of bridge circuits are connected to bridge boxes matched with the collection module, and the output ends of the bridge boxes are connected to four channels of the collection module respectively through RJ-50 sockets. The acceleration sensor is directly connected with the collection module through a cable, and the collection module is inserted in a case of the software customization controller. According to the dynamic property real-time monitoring system of the railway turnout, monitoring on the wheel rail force and the vibration acceleration is achieved at the same time in the same system. In the monitoring process, the waveforms of the wheel rail force and the vibration acceleration can be displayed in real time, real-time analysis can be conducted, and the expansibility of the system is high.

Description

technical field [0001] The invention belongs to the technical field of railway engineering, in particular to a real-time monitoring system for dynamic characteristics of railway turnouts. Background technique [0002] High speed and heavy load are the development trend of railway transportation, but this will undoubtedly make the interaction between wheel and rail more intense. As an important part of the railway track, the turnout has the characteristics of complex structure, short life, low driving safety, and large maintenance and repair investment. With the intensification of wheel-rail dynamics, the service life of turnouts is shortening, and the maintenance and repair costs are also increasing. This will not only seriously affect the running state of the vehicle when passing the turnout and the comfort of passengers, but also easily cause great damage. Security risks. Therefore, in order to understand the state of the turnout when the train crosses the turnout, effec...

Claims

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Application Information

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IPC IPC(8): B61K9/08
CPCB61K9/08
Inventor 雷晓燕黄辉孙茂棠刘庆杰
Owner EAST CHINA JIAOTONG UNIVERSITY
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