Bearing monitoring device of railcar

Provided is a bearing monitoring device of a railcar, the bearing monitoring device being configured to monitor a bearing of a bogie supporting a carbody, the bearing monitoring device including: a receiving unit configured to receive a data piece of a temperature of the bearing and at least one of...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Sato, Yoshi, Mitsue, Masayuki, Nishimura, Takehiro, Kamura, Keiichiro
Format:	Patent
Sprache:	eng
Schlagworte:	BEARINGS BLASTING ELEMENTS OR CRANKSHAFT MECHANISMS ENGINEERING ELEMENTS AND UNITS ENSURING THE SAFETY OF RAILWAY TRAFFIC FLEXIBLE SHAFTS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS GUIDING RAILWAY TRAFFIC HEATING INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES LIGHTING MEASURING MEASURING QUANTITY OF HEAT MEASURING TEMPERATURE MECHANICAL ENGINEERING OTHER AUXILIARY EQUIPMENT FOR RAILWAYS PERFORMING OPERATIONS PHYSICS RAILWAYS ROTARY BODIES OTHER THAN GEARING ELEMENTS SHAFTS TESTING TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR THERMAL INSULATION IN GENERAL THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	Provided is a bearing monitoring device of a railcar, the bearing monitoring device being configured to monitor a bearing of a bogie supporting a carbody, the bearing monitoring device including: a receiving unit configured to receive a data piece of a temperature of the bearing and at least one of a data piece of a load of the bearing and a data piece of a rotating speed of the bearing; and a diagnostic unit configured to, when a monitoring value exceeds a variable threshold, determine that an abnormality of the bearing has occurred, the monitoring value being at least one of a temperature value and a temperature increase rate, the at least one of the temperature value and the temperature increase rate being obtained from the data piece of the temperature of the bearing received by the receiving unit, wherein when at least one of a value of the data piece of the load and a value of the data piece of the rotating speed decreases, the diagnostic unit lowers the variable threshold.