JPS6220268U - - Google Patents

Info

Publication number
JPS6220268U
JPS6220268U JP11218685U JP11218685U JPS6220268U JP S6220268 U JPS6220268 U JP S6220268U JP 11218685 U JP11218685 U JP 11218685U JP 11218685 U JP11218685 U JP 11218685U JP S6220268 U JPS6220268 U JP S6220268U
Authority
JP
Japan
Prior art keywords
annular pole
annular
pole block
inner diameter
casing
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
JP11218685U
Other languages
Japanese (ja)
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 filed Critical
Priority to JP11218685U priority Critical patent/JPS6220268U/ja
Publication of JPS6220268U publication Critical patent/JPS6220268U/ja
Pending legal-status Critical Current

Links

Landscapes

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

Description

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

第1図はこの考案の一実施例である磁性流体シ
ール装置の縦断面図、第2図は縦来構造の磁性流
体シール装置の縦断面図、第3図、第4図は同上
磁性流体シール装置の組立状況を説明するための
縦断面図である。 1:回転軸、2:Oリング、4:ケーシング、
4a:ストツパ部、5a,15:環状ポールブロ
ツク、7:環状微小突起、8:磁性流体、13:
磁性体円筒。
Fig. 1 is a longitudinal cross-sectional view of a magnetic fluid seal device which is an embodiment of this invention, Fig. 2 is a longitudinal cross-sectional view of a magnetic fluid seal device with a conventional structure, and Figs. 3 and 4 are the same magnetic fluid seals. FIG. 3 is a longitudinal cross-sectional view for explaining the assembly situation of the device. 1: Rotating shaft, 2: O-ring, 4: Casing,
4a: Stopper part, 5a, 15: Annular pole block, 7: Annular microprotrusion, 8: Magnetic fluid, 13:
magnetic cylinder.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 回転軸の外周にOリングを介して配設された磁
性体円筒の外周面と、ケーシングの内周にOリン
グを介して取付けられた前記磁性体円筒を取り囲
む固定側の一対の環状ポールブロツクの内周面と
のいずれか一方に複数個の環状微小突起を設け、
この環状微小突起と前記環状ポールブロツクの内
周面または磁性体円筒の外周面に磁性流体を架け
渡して真空またガスをシールするものにおいて;
前記一対の環状ポールブロツクのうちケーシング
のストツパ側にある環状ポールブロツクの内径よ
り他方の環状ポールブロツクの内径を大きくする
とともに、この環状ポールブロツクに対向する磁
性体円筒の外径もこの環状ポールブロツクの内径
に対応して外径に段差を設けたことを特徴とする
磁性流体シール装置。
The outer circumferential surface of a magnetic cylinder disposed on the outer periphery of the rotating shaft via an O-ring, and the pair of annular pole blocks on the stationary side surrounding the magnetic cylinder attached to the inner circumference of the casing via an O-ring. A plurality of annular microprotrusions are provided on either side of the inner peripheral surface,
A magnetic fluid is bridged between the annular microprotrusion and the inner circumferential surface of the annular pole block or the outer circumferential surface of the magnetic cylinder to seal the vacuum or gas;
Of the pair of annular pole blocks, the inner diameter of the other annular pole block is made larger than the inner diameter of the annular pole block on the stopper side of the casing, and the outer diameter of the magnetic cylinder facing this annular pole block is also made larger than the inner diameter of the annular pole block located on the stopper side of the casing. A magnetic fluid sealing device characterized in that a step is provided on the outer diameter corresponding to the inner diameter of the magnetic fluid sealing device.
JP11218685U 1985-07-22 1985-07-22 Pending JPS6220268U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11218685U JPS6220268U (en) 1985-07-22 1985-07-22

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11218685U JPS6220268U (en) 1985-07-22 1985-07-22

Publications (1)

Publication Number Publication Date
JPS6220268U true JPS6220268U (en) 1987-02-06

Family

ID=30992820

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11218685U Pending JPS6220268U (en) 1985-07-22 1985-07-22

Country Status (1)

Country Link
JP (1) JPS6220268U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007004690A1 (en) * 2005-06-30 2007-01-11 Rigaku Corporation Magnetic fluid sealing device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007004690A1 (en) * 2005-06-30 2007-01-11 Rigaku Corporation Magnetic fluid sealing device

Similar Documents

Publication Publication Date Title
JPS6220268U (en)
JPS6345260U (en)
JPH025651U (en)
JPS61137168U (en)
JPS6227267U (en)
JPS6249057U (en)
JPS626567U (en)
JPS6157269U (en)
JPS6436768U (en)
JPH0276270U (en)
JPS62100375U (en)
JPH01136774U (en)
JPS6228969U (en)
JPH0431369U (en)
JPS63106920U (en)
JPS63150169U (en)
JPS61173864U (en)
JPS5897970U (en) Magnetic fluid seal device
JPH0377859U (en)
JPS62108666U (en)
JPS636274U (en)
JPS59171260U (en) mechanical seal
JPS6425567U (en)
JPH0230582U (en)
JPS61172261U (en)