To provide a wire rope inspection method with which, while suppressing contact between an abnormal projection part projecting from a wire rope which is the object of inspection and a detection part that includes a detection coil, it is possible to bring the detection part closer and inspect the wire rope with good accuracy.SOLUTION: This wire rope inspection method comprises: a preliminary inspection step (step S12) in which, while an inspection interval which is an interval between a detection unit (10) that includes a detection coil (11) and a wire rope (W) is set to a first interval (D1), the detection interval is set to a second interval (D2) which is larger than the first interval (D1) and preliminary inspection is performed to detect the magnetic flux of the wire rope (W) before performing main inspection to detect the magnetic flux of the wire rope (W); and a projection presence assessment step (step S13) in which presence of an abnormal projection part (P) of the wire rope (W) is assessed on the basis of a detection signal having been detected in the preliminary inspection step by the detection coil (11).SELECTED DRAWING: Figure 14

    【課題】検査対象であるワイヤロープから飛び出した異常飛び出し部と検知コイルを含む検知部との接触を抑制しつつ、検知部を近づけてワイヤロープの検査を精度よく行うことが可能なワイヤロープ検査方法を提供する。【解決手段】このワイヤロープ検査方法は、検知コイル(11)を含む検知部(10)とワイヤロープ(W)との間隔である検知間隔を第1の間隔(D1)にした状態で、ワイヤロープ(W)の磁束を検知する本検査を行う前に、検知間隔を第1の間隔(D1)よりも大きい第2の間隔(D2)にした状態で、ワイヤロープ(W)の磁束を検知する事前検査を行う事前検査ステップ(ステップS12)と、事前検査ステップにおいて検知コイル(11)により検知された検知信号に基づいて、ワイヤロープWの異常飛び出し部(P)の有無を判定する飛出部有無判定ステップ(ステップS13)と、を備える。【選択図】図14


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    Title :

    WIRE ROPE INSPECTION METHOD, WIRE ROPE INSPECTION SYSTEM, AND WIRE ROPE INSPECTION DEVICE


    Additional title:

    ワイヤロープ検査方法、ワイヤロープ検査システムおよびワイヤロープ検査装置


    Contributors:

    Publication date :

    2022-08-26


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    G01N Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften , INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES / B66B Aufzüge , ELEVATORS





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