To provide a wheel shape measurement method that allows extraction of the true cross section of a wheel of a train running in non-contact without being affected by rail deflection and dimension calculation of each wheel with good accuracy.SOLUTION: The system acquires multiple wheel cross section profile data 1a by irradiating a line laser beam 20a, 21a from a laser projector 20, 21 to a rail 100 and a wheel 1 of a running vehicle and by continuously measuring the irradiation surface with 3D profile cameras 10 and 11, and selects a frame having a measured distance value between the rail top and the flange tip which is close to the reference value among them to determine the true cross-sectional profile data and to allow the dimension calculation of each wheel part.SELECTED DRAWING: Figure 5

    【課題】レール撓みの影響を受けず非接触で走行中の列車の車輪真断面を抽出可能とし、良好な精度で車輪各部の寸法算出を可能とする車輪形状測定方法を提供する。【解決手段】レール100と、走行している車両の車輪1とに、レーザプロジェクタ20、21からラインレーザ光20a、21aを照射して、その照射面を3Dプロファイルカメラ10、11で連続的に測定することで、複数の車輪断面プロファイルデータ1aを取得し、その中からレール頭頂部とフランジ先端との間の被測定距離が基準値に近いフレームを選択して真断面プロファイルデータを決定し、車輪各部位の寸法算出を可能とする。【選択図】図5


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    Title :

    WHEEL SHAPE MEASUREMENT METHOD


    Additional title:

    車輪形状測定方法


    Contributors:

    Publication date :

    2019-06-20


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    G01B MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS , Messen der Länge, der Dicke oder ähnlicher linearer Abmessungen / B61K Andere Hilfseinrichtungen für Eisenbahnen , OTHER AUXILIARY EQUIPMENT FOR RAILWAYS



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