JPH01118256U - - Google Patents

Info

Publication number
JPH01118256U
JPH01118256U JP1314088U JP1314088U JPH01118256U JP H01118256 U JPH01118256 U JP H01118256U JP 1314088 U JP1314088 U JP 1314088U JP 1314088 U JP1314088 U JP 1314088U JP H01118256 U JPH01118256 U JP H01118256U
Authority
JP
Japan
Prior art keywords
annular
housing
shaft
conductive
magnetic fluid
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
JP1314088U
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 JP1314088U priority Critical patent/JPH01118256U/ja
Publication of JPH01118256U publication Critical patent/JPH01118256U/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 the drawing]

第1図はこの考案の実施例の縦断面図、第2図
は同実施例の横断面図、第3図は第1図における
シール部材の製造手順を説明するための斜視図、
第4図は第1図における導電性プレートの他の態
様を示す平面図、第5図は従来の導電性磁性流体
シール装置の縦断面図、第6図は第5図の要部拡
大図、第7図は第5図の横断面図である。 1……ハウジング、2……シヤフト、7……磁
性流体、11……環状の導電性プレート、11a
……可撓片、C……環状のシール部材、14,
15……環状のポールピース、16……環状の磁
石。
FIG. 1 is a longitudinal cross-sectional view of an embodiment of this invention, FIG. 2 is a cross-sectional view of the same embodiment, and FIG. 3 is a perspective view for explaining the manufacturing procedure of the seal member in FIG. 1.
FIG. 4 is a plan view showing another aspect of the conductive plate in FIG. 1, FIG. 5 is a longitudinal cross-sectional view of a conventional conductive magnetic fluid sealing device, and FIG. 6 is an enlarged view of the main part of FIG. FIG. 7 is a cross-sectional view of FIG. 5. DESCRIPTION OF SYMBOLS 1... Housing, 2... Shaft, 7... Magnetic fluid, 11... Annular conductive plate, 11a
... Flexible piece, C 1 ... Annular sealing member, 14,
15...Annular pole piece, 16...Annular magnet.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 軸受を介して相対回転するハウジングおよびシ
ヤフトと、環状の磁石とその端面に同軸的に固着
した環状の導電性プレートとその端面に導電可能
に同軸的に固着した環状のポールピースとを有し
、かつ環状のポールピースとシヤフトまたはハウ
ジングとの間に隙間を設けてハウジングまたはシ
ヤフトに固定した環状のシール部材と、前記隙間
に環状の磁石の磁力で保持した磁性流体とよりな
り、かつ前記導電性プレートは、シヤフトまたは
ハウジングによつて弾性変形して、前記磁性流体
部分において、同シヤフトまたはハウジングに弾
性接触する可撓片を備えていることを特徴とする
導電性磁性流体シール装置。
It has a housing and a shaft that rotate relative to each other via a bearing, an annular magnet, an annular conductive plate coaxially fixed to the end surface of the magnet, and an annular pole piece coaxially fixed to the end surface in a conductive manner, and an annular sealing member fixed to the housing or shaft with a gap provided between the annular pole piece and the shaft or housing, and a magnetic fluid held in the gap by the magnetic force of an annular magnet, and the conductive A conductive magnetic fluid sealing device, characterized in that the plate includes a flexible piece that is elastically deformed by the shaft or housing and comes into elastic contact with the shaft or housing in the magnetic fluid portion.
JP1314088U 1988-02-03 1988-02-03 Pending JPH01118256U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1314088U JPH01118256U (en) 1988-02-03 1988-02-03

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1314088U JPH01118256U (en) 1988-02-03 1988-02-03

Publications (1)

Publication Number Publication Date
JPH01118256U true JPH01118256U (en) 1989-08-10

Family

ID=31223207

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1314088U Pending JPH01118256U (en) 1988-02-03 1988-02-03

Country Status (1)

Country Link
JP (1) JPH01118256U (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63152773A (en) * 1986-12-15 1988-06-25 Nippon Telegr & Teleph Corp <Ntt> Magnetic fluid seal

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63152773A (en) * 1986-12-15 1988-06-25 Nippon Telegr & Teleph Corp <Ntt> Magnetic fluid seal

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