JPH01169672U - - Google Patents
Info
- Publication number
- JPH01169672U JPH01169672U JP6660288U JP6660288U JPH01169672U JP H01169672 U JPH01169672 U JP H01169672U JP 6660288 U JP6660288 U JP 6660288U JP 6660288 U JP6660288 U JP 6660288U JP H01169672 U JPH01169672 U JP H01169672U
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- yoke
- annular
- source
- housing
- 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
Links
- 239000011553 magnetic fluid Substances 0.000 claims description 19
- 238000007789 sealing Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims 2
- 239000004519 grease Substances 0.000 claims 1
- 125000006850 spacer group Chemical group 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/762—Sealings of ball or roller bearings by means of a fluid
- F16C33/763—Sealings of ball or roller bearings by means of a fluid retained in the sealing gap
- F16C33/765—Sealings of ball or roller bearings by means of a fluid retained in the sealing gap by a magnetic field
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
- F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Description
【図面の簡単な説明】
第１図は本考案の磁性流体シール装置の縦断面
図、第２図は本考案の磁性流体シール装置の縦断
面図、第３図は磁性流体シール装置の取付方法の
説明図、第４図は本考案の磁性流体シール装置の
縦断面図、第５図及び第６図は本考案の磁性流体
シール装置の縦断面図、第７図は本考案の磁性流
体シール装置の同軸度の調整方法を示す説明図、
第８図、第９図及び第１０図は本考案の磁性流体
シール装置の他の実施例を示す縦断面図、第１１
図、第１２図、第１３図、第１４図及び第１５図
は、磁性流体シール装置のさらに他の実施例を示
す縦断面図、第１６図ａ，ｂ、第１７図、第１８
図及び第１９図は磁性流体シール装置の他の実施
例を示す縦断面図であり第１６図ｂは、第１６図
ａの磁気ユニツトの同軸度調心治具の断面図、第
２０図、第２１図、第２２図、第２３図、第２４
図及び第２５図は、従来技術による磁性流体シー
ル装置の縦断面図である。
符号の説明、１…磁性流体シール装置、２…可
動軸、３…磁石、４…内周部、５…外周部、６…
ハウジング、７，８…ヨーク、１２，１３…微少
間隙部。[Brief Description of the Drawings] Fig. 1 is a longitudinal sectional view of the magnetic fluid seal device of the present invention, Fig. 2 is a longitudinal sectional view of the magnetic fluid seal device of the present invention, and Fig. 3 is a method for installing the magnetic fluid seal device. FIG. 4 is a vertical cross-sectional view of the magnetic fluid seal device of the present invention, FIGS. 5 and 6 are vertical cross-sectional views of the magnetic fluid seal device of the present invention, and FIG. 7 is a vertical cross-sectional view of the magnetic fluid seal device of the present invention. An explanatory diagram showing how to adjust the coaxiality of the device,
8, 9 and 10 are longitudinal cross-sectional views showing other embodiments of the magnetic fluid sealing device of the present invention, and FIG.
12, 13, 14, and 15 are longitudinal cross-sectional views showing still other embodiments of the magnetic fluid seal device, and FIGS. 16a, b, 17, and 18.
19 and 19 are longitudinal cross-sectional views showing other embodiments of the magnetic fluid sealing device. FIG. 16b is a cross-sectional view of the coaxial alignment jig of the magnetic unit of FIG. 16a, Figure 21, Figure 22, Figure 23, Figure 24
1 and 25 are longitudinal sectional views of a magnetic fluid sealing device according to the prior art. Explanation of symbols: 1...Magnetic fluid sealing device, 2...Movable shaft, 3...Magnet, 4...Inner peripheral part, 5...Outer peripheral part, 6...
Housing, 7, 8...Yoke, 12, 13...Minute gap.
Claims (1)
源の両端面に配置され磁力源を挾む環状のヨーク
とを有する磁性流体シール装置において、磁性流
体シール装置をハウジングに固定する際、一方の
ヨーク外周部とハウジング内周によつて位置決め
を行なうべく、一方のヨーク外径を他方のヨーク
外径より大きくしたことを特徴とする磁性流体シ
ール装置。 (2) 軸方向に着磁した環状磁力源と、前記磁力
源の両端面に配置され磁力源を挾む環状のヨーク
とを有し外輪と、内輪と、前記外輪および内輪の
間に配置されたころとを備えたベアリング内に取
り付けられた磁性流体シール装置において、ハウ
ジングに固定する際、一方のヨーク外周部とハウ
ジング内周によつて位置決めを行なうべく、一方
のヨーク外径を他方のヨーク外径より大きくした
ことを特徴とする磁性流体シール装置。 (3) 軸方向に着磁した環状磁力源と、該環状磁
力源の両側に配置された環状ヨークとを有し軸並
びにハウジングが透磁性材であり、且つハウジン
グと、軸が透磁性材の軸受で支持されている磁性
流体シール装置において、一方のヨーク外径を磁
力源外径より大きくしてヨークとハウジングを固
定し、ヨーク内径を磁力源内径と同じか若しくは
、磁力源内径より大きくし、他方のヨーク外径を
磁力源外径と等しいか若しくは、小さくし、内径
を磁力源内径より小さくしたことを特徴とする磁
性流体シール装置。 (4) 半径方向に着磁した環状磁力源と、前記環
状磁力源に接着された透磁性の環状ヨークを有す
る磁気ユニツト。 (5) 半径方向に着磁した環状磁力源と、前記環
状磁力源に隣接して配置された透磁性の環状ヨー
クと、前記環状磁力源と環状ヨークとの間に配置
された非磁性のスペーサとからなる磁気ユニツト
。 (6) 内輪、外輪、グリスシール用の透磁性のシ
ールド及びころを有するベアリングに取り付けら
れる磁性流体シール装置において、一枚のシール
ドと、一枚の環状磁力源と、一枚のシールドとと
もに前記環状磁力源を挾持するように配置された
一枚のヨークとからなる磁性流体シール装置。[Claims for Utility Model Registration] (1) In a magnetic fluid sealing device having an annular magnetic source magnetized in the axial direction and an annular yoke sandwiching the magnetic source, which is disposed on both end surfaces of the magnetic source, A magnetic fluid sealing device characterized in that when fixing the sealing device to a housing, the outer diameter of one yoke is made larger than the outer diameter of the other yoke so that positioning is performed by the outer circumference of one yoke and the inner circumference of the housing. (2) An annular magnetic source magnetized in the axial direction, and an annular yoke arranged on both end faces of the magnetic source and sandwiching the magnetic source, and arranged between an outer ring, an inner ring, and the outer ring and the inner ring. In a magnetic fluid seal device installed in a bearing equipped with a roller, when fixing it to a housing, the outer diameter of one yoke is fixed to the outer circumference of one yoke and the inner circumference of the housing. A magnetic fluid seal device characterized by having a larger outer diameter. (3) It has an annular magnetic force source magnetized in the axial direction and an annular yoke arranged on both sides of the annular magnetic force source, the shaft and housing are made of a magnetically permeable material, and the housing and the shaft are made of a magnetically permeable material. In a magnetic fluid seal device supported by a bearing, the yoke and housing are fixed by making the outer diameter of one yoke larger than the outer diameter of the magnetic source, and the inner diameter of the yoke is the same as or larger than the inner diameter of the magnetic source. A magnetic fluid sealing device characterized in that the outer diameter of the other yoke is equal to or smaller than the outer diameter of the magnetic source, and the inner diameter is smaller than the inner diameter of the magnetic source. (4) A magnetic unit having a radially magnetized annular magnetic source and a magnetically permeable annular yoke bonded to the annular magnetic source. (5) a radially magnetized annular magnetic force source, a magnetically permeable annular yoke disposed adjacent to the annular magnetic force source, and a non-magnetic spacer disposed between the annular magnetic force source and the annular yoke; A magnetic unit consisting of. (6) In a magnetic fluid sealing device that is attached to a bearing having an inner ring, an outer ring, a magnetically permeable shield for a grease seal, and rollers, one shield, one annular magnetic force source, and one shield as well as the annular A magnetic fluid sealing device consisting of a single yoke arranged to sandwich a magnetic source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6660288U JPH01169672U (en) | 1988-05-20 | 1988-05-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6660288U JPH01169672U (en) | 1988-05-20 | 1988-05-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01169672U true JPH01169672U (en) | 1989-11-30 |
Family
ID=31292001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6660288U Pending JPH01169672U (en) | 1988-05-20 | 1988-05-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01169672U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160117141A (en) * | 2015-03-31 | 2016-10-10 | 가부시키가이샤 시마노 | Fishing reel and magnetic seal mechanism for fishing reel |
| JP2017044315A (en) * | 2015-08-28 | 2017-03-02 | グローブライド株式会社 | Bearing with magnetic fluid seal |
-
1988
- 1988-05-20 JP JP6660288U patent/JPH01169672U/ja active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160117141A (en) * | 2015-03-31 | 2016-10-10 | 가부시키가이샤 시마노 | Fishing reel and magnetic seal mechanism for fishing reel |
| JP2016189756A (en) * | 2015-03-31 | 2016-11-10 | 株式会社シマノ | Fishing reel and magnetic seal mechanism for the same |
| KR20230019910A (en) * | 2015-03-31 | 2023-02-09 | 가부시키가이샤 시마노 | Fishing reel |
| JP2017044315A (en) * | 2015-08-28 | 2017-03-02 | グローブライド株式会社 | Bearing with magnetic fluid seal |
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