The invention discloses an online wheel set dimension detecting method and device based on two kinds of sensors. The device comprises the first laser displacement sensor, the eddy current displacement sensor and the second laser displacement sensor which are sequentially arranged on the inner side of a track in the advancing direction of a train. The third laser displacement sensor at the outer side of the track and the second laser displacement sensor are symmetrical about the track between the third laser displacement sensor and the second laser displacement sensor. The eddy current displacement sensor is located under a vertex of a rim. According to the method, the two laser displacement sensors arranged symmetrical about the track obtain contour lines of wheel treads through probing, and the height and the thickness of the rim are calculated out according to the geometrical relationship by means of the extracted contour lines of the treads; the two laser sensors located on the inner side of the track and the eddy current sensor obtain coordinates of three points on the circumference of the vertex of the rim through probing, and the diameter of wheels is calculated according to the geometrical relationship in combination with the height of the rim. The method and the device have the advantages that the measurement principle is simple, practicality is high, cost is low, and non-contact high-precision measurement can be achieved.
Online wheel set dimension detecting method and device based on two kinds of sensors
2016-02-03
Patent
Elektronische Ressource
Englisch
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