SEALING DEVICE

PROBLEM TO BE SOLVED: To provide a sealing device that can prevent the seal lip of the sealing device from contacting with a slinger due to pressure fluctuation, and effectively prevent slurry or the like from entering the inside of a bearing by discharging slurry entering the sealing device.SOLUTIO...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	TAJIRI ATSUSHI, BAO TANQING
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	BEARINGS BLASTING CYLINDERS 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 PISTONS ROTARY BODIES OTHER THAN GEARING ELEMENTS SEALINGS SHAFTS THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a sealing device that can prevent the seal lip of the sealing device from contacting with a slinger due to pressure fluctuation, and effectively prevent slurry or the like from entering the inside of a bearing by discharging slurry entering the sealing device.SOLUTION: In a sealing device, an open hole 120 is provided in a slinger 102a; when the inner ring of a bearing rotates, on a surface of the radially inside of the open hole 120, irregularities are provided so that air flows from the inside of an outside circular ring part 107a of the slinger 102a to the outside; and with pumping, slurry or the like entering the inside of the seal device is discharged. 【課題】圧力変動により、密封装置のシールリップが、スリンガにべた当たりすることを抑制し、且つ、密封装置内に浸入した泥水を排出することにより、軸受内部への泥水等の侵入を効果的に防止することが可能な密封装置の提供。【解決手段】スリンガ１０２ａに、貫通穴１２０を設け、この貫通穴１２０の径方向内方の面に、軸受の内輪が回転したときに、スリンガ１０２ａの外側円輪部１０７ａの内側から外側に向けて気流が流れるように凹凸を設け、そのポンピング作用により、密封装置内に浸入した泥水等を排出する。【選択図】図１