JPS6045972U - Magnetic fluid seal device - Google Patents

Magnetic fluid seal device

Info

Publication number
JPS6045972U
JPS6045972U JP13859183U JP13859183U JPS6045972U JP S6045972 U JPS6045972 U JP S6045972U JP 13859183 U JP13859183 U JP 13859183U JP 13859183 U JP13859183 U JP 13859183U JP S6045972 U JPS6045972 U JP S6045972U
Authority
JP
Japan
Prior art keywords
magnetic fluid
fluid seal
seal device
rotating shaft
magnetic
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
JP13859183U
Other languages
Japanese (ja)
Inventor
河内山　茂
Original Assignee
日本電気株式会社
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 日本電気株式会社 filed Critical 日本電気株式会社
Priority to JP13859183U priority Critical patent/JPS6045972U/en
Publication of JPS6045972U publication Critical patent/JPS6045972U/en
Pending legal-status Critical Current

Links

Landscapes

  • Rotational Drive Of Disk (AREA)
  • Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)

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) [Abstract] 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図は従来の磁性流体シール装置を用いた磁気ディス
ク装置の主軸回転部を示す断面図、第２図は本考案の実
施例の磁性流体シール装置を用いた磁気ディスク装置の
主軸回転部を示す断面図である。同図において、 １・・・・・・磁性流体シール本体、２・・・・・・ベ
アリング、３・・・・・・ハブ、４・・・・・・ハウジ
ング、５，５’・・・・・・シャフト、６・・・・・・
駆動モータ、７・・・・・・ベースプ　ル−ト、８・・
・・・・磁気ディスク板、９・・・・・・磁性流体を含
むカートリッジ、１０・・・・・・細孔。FIG. 1 is a cross-sectional view showing the main shaft rotating part of a magnetic disk device using a conventional magnetic fluid seal device, and FIG. FIG. In the same figure, 1... Magnetic fluid seal body, 2... Bearing, 3... Hub, 4... Housing, 5, 5'... ...Shaft, 6...
Drive motor, 7...Base pullet, 8...
... Magnetic disk plate, 9 ... Cartridge containing magnetic fluid, 10 ... Pore.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 回転軸と間隙を介して設置される一対のヨークで磁石を
挾んでなる磁気回路の前記間隙に磁性流体が注入されて
なる磁性流体シール装置において、前記回転軸に中空部
分を設け、前記中空部分から前記磁性流体がある部分ま
で通じる孔を設け、前記中心部分には磁性流体を充填す
るための着脱できるカートリッジを設けていることを特
徴とする磁性流体シール装置。In a magnetic fluid sealing device in which a magnetic fluid is injected into the gap of a magnetic circuit formed by sandwiching a magnet between a pair of yokes installed with a gap between the rotating shaft and the rotating shaft, a hollow portion is provided in the rotating shaft, and the hollow portion 1. A magnetic fluid sealing device, characterized in that a hole is provided that communicates with the magnetic fluid to a portion thereof, and a removable cartridge for filling the magnetic fluid is provided in the center portion.
JP13859183U 1983-09-07 1983-09-07 Magnetic fluid seal device Pending JPS6045972U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13859183U JPS6045972U (en) 1983-09-07 1983-09-07 Magnetic fluid seal device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13859183U JPS6045972U (en) 1983-09-07 1983-09-07 Magnetic fluid seal device

Publications (1)

Publication Number Publication Date
JPS6045972U true JPS6045972U (en) 1985-04-01

Family

ID=30310917

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13859183U Pending JPS6045972U (en) 1983-09-07 1983-09-07 Magnetic fluid seal device

Country Status (1)

Country Link
JP (1) JPS6045972U (en)

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