Bearing diagnosing device and bearing diagnosing method

A bearing diagnosing method for diagnosing degradation of a bearing rotatably supporting a spindle includes: the steps of obtaining the rotation speed of the spindle; obtaining the temperature of the bearing; recording the rotation time for which the spindle has rotated, at each of multiple classes...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Inaguchi, Yuuzou, Isobe, Gaku
Format:	Patent
Sprache:	eng
Schlagworte:	ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDEDFOR ELSEWHERE CHECKING-DEVICES CONTROL OR REGULATING SYSTEMS IN GENERAL CONTROLLING FUNCTIONAL ELEMENTS OF SUCH SYSTEMS GENERATING RANDOM NUMBERS MEASURING MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS PHYSICS REGISTERING OR INDICATING THE WORKING OF MACHINES REGULATING TESTING TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR TIME OR ATTENDANCE REGISTERS VOTING OR LOTTERY APPARATUS
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Beschreibung
Zusammenfassung:	A bearing diagnosing method for diagnosing degradation of a bearing rotatably supporting a spindle includes: the steps of obtaining the rotation speed of the spindle; obtaining the temperature of the bearing; recording the rotation time for which the spindle has rotated, at each of multiple classes that are defined in advance by combination of rotation speed range and temperature range, into the storage unit, based on the rotation speed and the temperature; and calculating bearing degradation information representing the degree of degradation of the bearing, based on the rotation time at each of the classes, stored in the storage unit.