Track vibration signal motion detection device and detection method

A mobile detection device and vibration signal technology, which is applied in the direction of track, track maintenance, road, etc., can solve the problems of imperfect natural frequency identification and detection technology, inaccurate detection technology of track fastener loosening, and the impact of car body vibration, etc., to achieve Simple structure, easy installation, ensuring effectiveness and accuracy

Active Publication Date: 2015-03-25
BEIJING MUNICIPAL INST OF LABOUR PROTECTION
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The invention provides a track vibration signal movement detection device and detection method, which are used to solve the problem that in the prior art, the detection of loose fasteners on the track mainly depends on manual inspection; The detection effect of the new line to be processed is poor, and the vibration of the car body has a serious impact on the image quality; the natural frequency identification and detection technology is not perfect, and the existing track fastener loose detection technology is not accurate and difficult to implement. question

Method used

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  • Track vibration signal motion detection device and detection method
  • Track vibration signal motion detection device and detection method
  • Track vibration signal motion detection device and detection method

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Experimental program
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Embodiment 1

[0055] figure 1 It is a structural diagram of the track vibration signal movement detection device described in Embodiment 1 of the present invention, figure 2 It is a partial front view of the track vibration signal movement detection device described in Embodiment 1 of the present invention, image 3 It is a partial left view of the track vibration signal movement detection device described in Embodiment 1 of the present invention, Figure 4 It is a partial top view of the track vibration signal movement detection device described in Embodiment 1 of the present invention, as figure 1 , figure 2 , image 3 and Figure 4 As shown, a track vibration signal movement detection device provided by an embodiment of the present invention includes a track inspection vehicle 1, a vibration detection device 2, and a detection signal analysis device 3, wherein:

[0056] The rail inspection car 1 is used to move on the rail 5, so that the vibration detection device 2 can detect the...

Embodiment 2

[0075] Figure 5 It is a partial front view of the track vibration signal movement detection device described in Embodiment 2 of the present invention, Figure 6 It is the front view of the left part of the track vibration signal movement detection device described in Embodiment 2 of the present invention, as Figure 5 and Figure 6 As shown, the track vibration signal movement detection device described in the present invention is basically the same as Embodiment 1, the difference is that there is an empty slot in the middle of the bushing of the bushing 4031, and the round wheel 201 is located in the empty slot, where It can be used as an alternative technical solution of embodiment 1. Therefore, the similarities will not be repeated.

Embodiment 3

[0077] Figure 7 It is a flow chart of the method for detecting movement of track vibration signals according to Embodiment 3 of the present invention, as Figure 7 As shown, a kind of track vibration signal movement detection method that embodiment 3 of the present invention provides, described method uses the track vibration signal movement detection device described in embodiment 1 or 2 of the present invention, and described method adopts ODS analysis method (Operational Deflection Shape) to analyze detection signals, including:

[0078] Step S1, the detection signal analysis device 3 receives the vibration signal from the vibration detection device 2, and the vibration signal is two-way; multiple vibration detection devices can also be set to detect multiple vibration signals;

[0079] Step S2, the detection signal analysis device 3 analyzes the two vibration signals, and calculates the damage indicators at each position during the moving process;

[0080] Specifically:...

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Abstract

The invention discloses a track vibration signal motion detection device which comprises a track inspection vehicle (1), a vibration detection device (2) and a detection signal analysis device (3). According to the track vibration signal motion detection device and detection method, the technical problems that in the prior art, track fastener loosening detection mainly depends on manual routing inspection and an existing track fastener loosening detection technology is inaccurate and is difficult to implement are solved, effectiveness and accuracy of track vibration signal detection in a moving state can be guaranteed, and disturbance to track vibration signals caused by a vehicle body of the track inspection vehicle is reduced. Besides, the track vibration signal motion detection device is simple and convenient to install, low in cost and convenient to maintain and replace.

Description

technical field [0001] The invention relates to a rail fastener detection technology, in particular to a rail vibration signal movement detection device and detection method. Background technique [0002] For a long time, the detection of rail fastener loosening has mainly relied on manual inspection methods. This method is time-consuming and laborious, and the detection efficiency is low. It can no longer meet the needs of the rapid development of modern railways. There is an urgent need for a method for detecting the working status of rail fasteners. Automatic detection device. At present, a variety of detection equipment or devices have been used in railway construction, acceptance and maintenance, such as: geometric state detection devices for detecting static roughness of rails, gauge detection devices, rail flaw detection vehicles, pantograph-catenary detection vehicles, etc. However, the above detection devices or detection methods cannot detect the tightness of the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01B35/12
Inventor 李贤徽邬玉斌张婧
Owner BEIJING MUNICIPAL INST OF LABOUR PROTECTION
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