JPH01143468U - - Google Patents

Info

Publication number
JPH01143468U
JPH01143468U JP4018488U JP4018488U JPH01143468U JP H01143468 U JPH01143468 U JP H01143468U JP 4018488 U JP4018488 U JP 4018488U JP 4018488 U JP4018488 U JP 4018488U JP H01143468 U JPH01143468 U JP H01143468U
Authority
JP
Japan
Prior art keywords
magnetic fluid
holding piece
shaft
inner peripheral
magnet
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.)
Granted
Application number
JP4018488U
Other languages
Japanese (ja)
Other versions
JPH0640374Y2 (en
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 JP1988040184U priority Critical patent/JPH0640374Y2/en
Publication of JPH01143468U publication Critical patent/JPH01143468U/ja
Application granted granted Critical
Publication of JPH0640374Y2 publication Critical patent/JPH0640374Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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 the drawing]

第1図は本考案の一実施例を示す断面図、第2
図〜第8図は他の実施例を示す断面図である。 1……軸、1a……外周面、6……マグネツト
、7……磁性流体保持ピース部、7a……内周端
縁、9……磁性流体、10……小凹溝、G……間
隙部。
Fig. 1 is a sectional view showing one embodiment of the present invention;
8 are sectional views showing other embodiments. DESCRIPTION OF SYMBOLS 1... Shaft, 1a... Outer peripheral surface, 6... Magnet, 7... Magnetic fluid holding piece part, 7a... Inner peripheral edge, 9... Magnetic fluid, 10... Small groove, G... Gap Department.

Claims (1)

【実用新案登録請求の範囲】 マグネツト6と、該マグネツト6に接触して又
は該マグネツト6自体をもつて形成されて軸1の
外周面1aに近接する磁性流体保持ピース部7と
、該軸1の外周面1aと該保持ピース部7の内周
端縁7aとの間隙部Gに保持される磁性流体9と
を、備えた磁性流体シール構造に於て、 上記軸1の外周面1aの内で、少くとも上記保
持ピース部7の内周端縁7aの対応する部位に、
及び/又は該保持ピース部7の内周端縁7aの内
周面に、上記磁性流体9を、該軸1と該保持ピー
ス部7との相対的回転運動により非飛散方向へ誘
引する傾斜状小凹溝10…を、設けたことを特徴
とする磁性流体シール構造。
[Claims for Utility Model Registration] A magnet 6, a magnetic fluid holding piece 7 formed in contact with the magnet 6 or with the magnet 6 itself and close to the outer peripheral surface 1a of the shaft 1, and the shaft 1. In the magnetic fluid seal structure, the magnetic fluid 9 is held in the gap G between the outer peripheral surface 1a of the shaft 1 and the inner peripheral edge 7a of the holding piece part 7. At least at a corresponding portion of the inner peripheral edge 7a of the holding piece portion 7,
and/or an inclined surface on the inner peripheral surface of the inner peripheral edge 7a of the holding piece part 7, which attracts the magnetic fluid 9 in a non-scattering direction due to the relative rotational movement between the shaft 1 and the holding piece part 7; A magnetic fluid seal structure characterized in that small grooves 10 are provided.
JP1988040184U 1988-03-25 1988-03-25 Magnetic fluid seal structure Expired - Lifetime JPH0640374Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1988040184U JPH0640374Y2 (en) 1988-03-25 1988-03-25 Magnetic fluid seal structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988040184U JPH0640374Y2 (en) 1988-03-25 1988-03-25 Magnetic fluid seal structure

Publications (2)

Publication Number Publication Date
JPH01143468U true JPH01143468U (en) 1989-10-02
JPH0640374Y2 JPH0640374Y2 (en) 1994-10-19

Family

ID=31266659

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988040184U Expired - Lifetime JPH0640374Y2 (en) 1988-03-25 1988-03-25 Magnetic fluid seal structure

Country Status (1)

Country Link
JP (1) JPH0640374Y2 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57193454U (en) * 1981-06-03 1982-12-08
JPS58187658U (en) * 1982-06-09 1983-12-13 日本精工株式会社 Magnetic fluid seal device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57193454U (en) * 1981-06-03 1982-12-08
JPS58187658U (en) * 1982-06-09 1983-12-13 日本精工株式会社 Magnetic fluid seal device

Also Published As

Publication number Publication date
JPH0640374Y2 (en) 1994-10-19

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