A method and device for detecting out-of-roundness of a railway vehicle wheel
A railway vehicle and circle detection technology, which is applied in the direction of rim measurement/measurement, can solve the problems of large construction volume, high requirements on track parameters, and difficult maintenance, etc., and achieve the effect of convenient and fast maintenance, high precision, and simple installation
Active Publication Date: 2018-08-24
BEIJING CTROWELL INFRARED TECHN +1
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Problems solved by technology
However, there are also disadvantages, specifically: it is necessary to remove the original under-rail foundation, dismantle and reinstall 22 sleepers, and use two-dimensional plate sensors to replace fasteners, which requires a large amount of construction; at the same time, the requirements for track parameters are very high, and need to be fixed from time to time Repair and maintenance, and repair and maintenance is very difficult
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[0031] The present invention will be further described in detail below in conjunction with the accompanying drawings.
[0032] The present invention is a kind of out-of-round detection device for railway vehicle wheels, such as figure 1 and figure 2 As shown, the device includes the detection station trackside equipment and the detection station indoor equipment 104; the detection vehicle types include freight cars, passenger cars, and EMUs.
[0033] The trackside equipment of the detection station includes: 8 load sensors 102, 12 acceleration sensors 101, 1 radio frequency vehicle number identification device 107 and 1 trackside signal processing box 103;
[0034] The 12 acceleration sensors 101 are respectively fixedly installed on the two rails 106 in front of the rail side signal processing box 103 in turn, and each rail 106 is equipped with 6, and the rail side signal processing box 103 is the center for symmetry Installation, each acceleration sensor 101 is fixed on t...
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The invention relates to a railway vehicle wheel out-of-round detection method and device, and belongs to the technical field of train security monitoring and control. The device comprises detection station trackside equipment and detection station indoor equipment. The detection station trackside equipment comprises acceleration sensors, load sensors, a radio-frequency vehicle number recognition device and a rail side signal processing box. The detection station indoor equipment is connected with the rail side signal processing box and the radio-frequency vehicle number recognition device. The acceleration sensors and the load sensors are connected with the rail side signal processing box. The detection method comprises the steps that the acceleration sensors are applied to measuring and obtaining a vibration curve; then the load sensors are manually calibrated, a transfer function of wheel-rail vertical force within the effective range of acceleration signals and the load sensors is built, and the transfer function is used for reconstructing a curve of the wheel-rail vertical acting force of all positions of a rail and the time; and finally, a worker judges whether a wheel is out of round or not, and therefore the failure wheel is forecast, checked and maintained. Full-perimeter seamless measurement is achieved, and high precision is achieved.
Description
technical field [0001] The invention belongs to the technical field of train safety monitoring, and in particular relates to a method and a detection device for out-of-round detection of railway vehicle wheels. Background technique [0002] Wheels are an important part of train running. With the increase of high-speed train lines, especially the continuous increase of EMU lines, the speed of trains is also increasing, and the wheels are prone to peeling, scratches, flat wheels, polygons, etc. in the circumferential direction. out-of-round phenomenon. The out-of-roundness of the wheel will increase the wheel-rail force, and at the same time, high-frequency vibration will easily cause damage to the running parts of the train, and in severe cases, it will cause the train to derail. Therefore, the effective monitoring of wheel out-of-roundness has become an important guarantee for the safe operation of trains. [0003] At present, the detection of the degree of out-of-roundnes...
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IPC IPC(8): B61K9/12
CPCB61K9/12
Inventor 陈曦袁高斌史晓桐张亨周毛毛姚剑博
Owner BEIJING CTROWELL INFRARED TECHN