To inspect securely the condition of a bearing by at least detecting a change of magnetism generated from the bearing.SOLUTION: Included are: a vibration sensor that detects vibration of a bearing; a plurality of magnetic sensors that detect magnetism generated from the bearing; and a determination unit that determines a condition of the bearing based on an output signal of the vibration sensor and an output signal of each magnetic sensor. The determination unit performs a first determination of whether a first value obtained from an output signal of the vibration sensor is within the range of a first reference value and a second determination of whether a second value obtained from an output signal of each magnetic sensor is within the range of a second reference value, and determines at least the presence or absence of normality of the bearing from the result of the first determination and the result of the second determination.SELECTED DRAWING: Figure 1

    【課題】少なくとも軸受から発生する磁気の変化を検知して軸受の状態を確実に検査すること。【解決手段】軸受の振動を検出する振動センサと、軸受から発生する磁気を検出する複数の磁気センサと、振動センサの出力信号と各磁気センサの出力信号を基に軸受の状態を判定する判定器と、を有し、判定器は、振動センサの出力信号から得られた第1の値が第1の基準値の範囲内にあるか否かの第1の判定を実行すると共に、各磁気センサの出力信号から得られた第2の値が第2の基準値の範囲内にあるか否かの第2の判定を実行し、第1の判定の結果と第2の判定の結果とから少なくとも軸受の正常の有無を判定する。【選択図】図1


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    Titel :

    BEARING INSPECTION DEVICE


    Weitere Titelangaben:

    軸受検査装置


    Beteiligte:
    KANDORI AKIHIKO (Autor:in) / MIZOGUCHI TAKAKO (Autor:in) / KODAIRA NORIMI (Autor:in) / ONISHI TOMOJI (Autor:in) / MATSUMOTO TOSHIAKI (Autor:in) / BABA RIKA (Autor:in)

    Erscheinungsdatum :

    27.06.2019


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES , Prüfen der statischen oder dynamischen Massenverteilung rotierender Teile von Maschinen oder Konstruktionen / B66B Aufzüge , ELEVATORS / F16C SHAFTS , Wellen




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