BEARING STRUCTURE FOR ROTATING VERTICAL SHAFT AND CENTRIFUGAL SEPARATOR

PROBLEM TO BE SOLVED: To provide technology easily applicable to existing facilities for effectively preventing the leakage of lubricating oil from a bearing device. SOLUTION: A rotating vertical shaft is supported by bearings 30, 31 and lubricating oil is circulated and supplied into the bearings....

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Bibliographische Detailangaben
Hauptverfasser:	WATARAI TOMONORI, ICHINOSE EIJI, YAMAGUCHI MASAHIKO, MINAGAWA ETSUO
Format:	Patent
Sprache:	eng
Schlagworte:	BEARINGS BLASTING CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL ORCHEMICAL PROCESSES CENTRIFUGES ELEMENTS OR CRANKSHAFT MECHANISMS ENGINEERING ELEMENTS AND UNITS FLEXIBLE SHAFTS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING PERFORMING OPERATIONS ROTARY BODIES OTHER THAN GEARING ELEMENTS SHAFTS THERMAL INSULATION IN GENERAL TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide technology easily applicable to existing facilities for effectively preventing the leakage of lubricating oil from a bearing device. SOLUTION: A rotating vertical shaft is supported by bearings 30, 31 and lubricating oil is circulated and supplied into the bearings. In this case, a labyrinth seal is formed in a double structure by a first labyrinth ring portion 40 fixed to the rotating vertical shaft 8 on the lower sides of the bearings 30, 31 and a second labyrinth ring portion 60 fixed to a housing 50. The lubricating oil leaking via the first stage labyrinth seal is shielded by the second stage labyrinth seal, and the leaking oil is drained from a space S between the first and second stage labyrinth seals via a drain path 63 formed in the second labyrinth ring portion 60 to the outside of the device. COPYRIGHT: (C)2006,JPO&NCIPI