PROBLEM TO BE SOLVED: To provide a derailment state detection device capable of properly detecting a derailment state with a simple constitution.SOLUTION: A derailment state detection device comprises speed detection means S for detecting a rotational speed of wheel shafts 122, 123, 132, 133, 222, 223, 232 and 233 for fixing a wheel 10 having a tread 11 for abutting on a rail upper surface in normal time and a flange 12 overhanging to the outer diameter side from the tread, and derailment state determination means 30 for determining as being a derailment state when a reduced state of the rotational speed continues for a predetermined determination period or more after the rotational speed reduces at a change rate of a predetermined value or more.SELECTED DRAWING: Figure 1

    【課題】簡単な構成により脱線状態を適切に検知可能な脱線状態検知装置等を提供する。【解決手段】脱線状態検知装置を、通常時にレール上面と当接する踏面11及び踏面より外径側に張り出したフランジ12を有する車輪10が固定された輪軸122,123,132,133,222,223,232,233の回転速度を検出する速度検出手段Sと、回転速度が所定以上の変化率で低下した後、回転速度が低下した状態が所定の判定期間以上継続した場合に脱線状態であると判定する脱線状態判定手段30とを備える構成とする。【選択図】図1


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    Title :

    DERAILMENT STATE DETECTION DEVICE AND DERAILMENT STATE DETECTION METHOD


    Additional title:

    脱線状態検知装置及び脱線状態検知方法


    Contributors:

    Publication date :

    2017-04-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B61K Andere Hilfseinrichtungen für Eisenbahnen , OTHER AUXILIARY EQUIPMENT FOR RAILWAYS



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