To provide a bearing diagnostic device which can recognize states of devices of a bearing to take appropriate countermeasures against the occurrence of abnormality on the bearing.SOLUTION: The bearing diagnostic device comprises a rotation period detection unit for detecting respective rotation periods of a rolling element, a retainer, and an annular member and a storage unit in which comparison rotation periods for the rolling element, the retainer, and the annular member are stored, and compares the rotation periods detected by the rotation period detection unit with data of the comparison rotation periods stored in the storage unit to diagnose a state of a bearing.SELECTED DRAWING: Figure 2

    【課題】軸受の機器の状態を把握して、軸受に異常が発生した場合に適切な対策をとることができる軸受診断装置を提供する。【解決手段】軸受診断装置は、転動体、保持器及び環状部材の各々の回転周期を検出する回転周期検出部と、転動体、保持器及び環状部材の比較用回転周期を記憶する記憶部と、を備え、回転周期検出部で検出された回転周期と、記憶部に記憶された比較用回転周期データとを比較して、軸受の状態を診断する。【選択図】図2


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    Title :

    BEARING DIAGNOSTIC DEVICE, BEARING DIAGNOSTIC METHOD, AND ESCALATOR


    Additional title:

    軸受診断装置、軸受診断方法、及びエスカレーター


    Contributors:

    Publication date :

    2020-09-10


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    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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