JPS5897970U - Magnetic fluid seal device - Google Patents

Magnetic fluid seal device

Info

Publication number
JPS5897970U
JPS5897970U JP19220281U JP19220281U JPS5897970U JP S5897970 U JPS5897970 U JP S5897970U JP 19220281 U JP19220281 U JP 19220281U JP 19220281 U JP19220281 U JP 19220281U JP S5897970 U JPS5897970 U JP S5897970U
Authority
JP
Japan
Prior art keywords
magnetic fluid
rotating shaft
ball bearing
bearing
seal device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP19220281U
Other languages
Japanese (ja)
Inventor
滝田　清
Original Assignee
株式会社富士電機総合研究所
富士電機製造株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社富士電機総合研究所, 富士電機製造株式会社 filed Critical 株式会社富士電機総合研究所
Priority to JP19220281U priority Critical patent/JPS5897970U/en
Publication of JPS5897970U publication Critical patent/JPS5897970U/en
Pending legal-status Critical Current

Links

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は従来構造の磁性流体シール装置の縦断面図、第
２図は本考案の一実施例である磁性流体　　　　　、シ
ール装置の縦断面図である。 １：軸受ハウジング、２：玉軸受、３：回転軸、４：ポ
ールブロック、７：環状微小突起、１０：磁性流体、１
１，１２：非磁性体製の断熱リング。FIG. 1 is a longitudinal cross-sectional view of a magnetic fluid sealing device having a conventional structure, and FIG. 2 is a vertical cross-sectional view of a magnetic fluid sealing device according to an embodiment of the present invention. 1: Bearing housing, 2: Ball bearing, 3: Rotating shaft, 4: Pole block, 7: Annular microprotrusion, 10: Magnetic fluid, 1
1, 12: Heat insulating ring made of non-magnetic material.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 軸受ハウジングに玉軸受を介して軸支される回転軸の外
周を取囲む２個のポールブロック間に磁石を橋架し、前
記ポールブロック内面と前記回転軸外周とのうちのいず
れか一方の面に環状微小突起を設け、この微小突起と対
向する面との間に磁性流体を介在せしめるものにおいて
、前記軸受ノ１ウジング内周面と前記玉軸受外輪の外周
面との間、　　および前記回転軸外周面と前記玉軸受内
輪の内周面との間に非磁性体製の断熱リングを設けたこ
とを特徴とする磁性流体シール装置。A magnet is bridged between two pole blocks that surround the outer periphery of a rotating shaft that is rotatably supported in a bearing housing via a ball bearing, and a magnet is bridged between the inner surface of the pole block and the outer periphery of the rotating shaft. In a device in which an annular micro-protrusion is provided and a magnetic fluid is interposed between the micro-protrusion and the opposing surface, between the inner circumferential surface of the bearing no. 1 housing and the outer circumferential surface of the ball bearing outer ring, and the outer circumference of the rotating shaft. A magnetic fluid sealing device characterized in that a heat insulating ring made of a non-magnetic material is provided between the surface and the inner peripheral surface of the inner ring of the ball bearing.
JP19220281U 1981-12-23 1981-12-23 Magnetic fluid seal device Pending JPS5897970U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19220281U JPS5897970U (en) 1981-12-23 1981-12-23 Magnetic fluid seal device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19220281U JPS5897970U (en) 1981-12-23 1981-12-23 Magnetic fluid seal device

Publications (1)

Publication Number Publication Date
JPS5897970U true JPS5897970U (en) 1983-07-04

Family

ID=30105622

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19220281U Pending JPS5897970U (en) 1981-12-23 1981-12-23 Magnetic fluid seal device

Country Status (1)

Country Link
JP (1) JPS5897970U (en)

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