JPS5935773U - sealing device - Google Patents
sealing deviceInfo
- Publication number
- JPS5935773U JPS5935773U JP13185482U JP13185482U JPS5935773U JP S5935773 U JPS5935773 U JP S5935773U JP 13185482 U JP13185482 U JP 13185482U JP 13185482 U JP13185482 U JP 13185482U JP S5935773 U JPS5935773 U JP S5935773U
- Authority
- JP
- Japan
- Prior art keywords
- sealing device
- yoke
- inner diameter
- magnet
- annular
- 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
Links
- 238000007789 sealing Methods 0.000 title claims description 4
- 239000011553 magnetic fluid Substances 0.000 claims description 3
- 239000000696 magnetic material Substances 0.000 claims 2
Landscapes
- 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
第１図は従来の密封装置の例を示す断面図ζ第２図は本
考案の一例を示す断面図、第３図及び第４図は夫々本考
案の他の例を示す断面図である。
１・・・環状磁石、２ａ、 ２ｂ、 ５ａ、 ５ｂ、
３ａ。
８ｂ・・・環状継鉄、３ａ、 ３ｂ・・・磁性流体、
４・・・回転軸、５ａ、 ５ｂ、 ７ａ、 ７ｂ
−突出部。FIG. 1 is a cross-sectional view showing an example of a conventional sealing device. FIG. 2 is a cross-sectional view showing an example of the present invention, and FIGS. 3 and 4 are cross-sectional views showing other examples of the present invention. 1... Annular magnet, 2a, 2b, 5a, 5b,
3a. 8b...Annular yoke, 3a, 3b...Magnetic fluid,
4... Rotating shaft, 5a, 5b, 7a, 7b
-Protrusions.
Claims (1)
磁石と、該磁石の両側に該磁石の内径より小さい内径を
有する軟磁性材より成る環状継鉄と、上記回転軸と上記
環状継鉄との間隙に磁性流体が介在された密封装置にお
いて、上記継鉄の内径面が上記回転軸に平行で互いの継
鉄側に突出させた突出部を設け、該突出部と上記回転軸
との間に上記磁性流体を捕捉せしめたことを特徴とする
密封装置。a rotating shaft made of a soft magnetic material; an annular magnet on which the rotating shaft is disposed; an annular yoke made of a soft magnetic material having an inner diameter smaller than the inner diameter of the magnet on both sides of the magnet; In a sealing device in which a magnetic fluid is interposed in a gap with an annular yoke, a protrusion is provided such that the inner diameter surface of the yoke is parallel to the rotation axis and protrudes toward the yoke side, and the protrusion and the rotation A sealing device characterized in that the magnetic fluid is captured between the shaft and the shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13185482U JPS5935773U (en) | 1982-08-31 | 1982-08-31 | sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13185482U JPS5935773U (en) | 1982-08-31 | 1982-08-31 | sealing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5935773U true JPS5935773U (en) | 1984-03-06 |
| JPH0229321Y2 JPH0229321Y2 (en) | 1990-08-07 |
Family
ID=30297958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13185482U Granted JPS5935773U (en) | 1982-08-31 | 1982-08-31 | sealing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5935773U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017090778A1 (en) * | 2015-11-26 | 2017-06-01 | グローブライド株式会社 | Ferrofluid seal-equipped bearing |
| EP3462049A1 (en) * | 2017-09-29 | 2019-04-03 | Globeride, Inc. | Magnetic fluid sealing device and magnetic fluid sealed bearing |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1213518B1 (en) * | 1999-07-09 | 2007-04-04 | Nok Corporation | Magnetic fluid seal |
-
1982
- 1982-08-31 JP JP13185482U patent/JPS5935773U/en active Granted
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017090778A1 (en) * | 2015-11-26 | 2017-06-01 | グローブライド株式会社 | Ferrofluid seal-equipped bearing |
| JP2017096451A (en) * | 2015-11-26 | 2017-06-01 | グローブライド株式会社 | Bearing with magnetic fluid seal |
| CN108291581A (en) * | 2015-11-26 | 2018-07-17 | 古洛布莱株式会社 | Bearing with magnetic fluid seal |
| EP3382224A4 (en) * | 2015-11-26 | 2019-03-27 | Globeride, Inc. | BEARING HAVING A FERROFLUID SEAL SEAL |
| US10520034B2 (en) | 2015-11-26 | 2019-12-31 | Globeride, Inc. | Magnetic fluid sealed bearing |
| EP3462049A1 (en) * | 2017-09-29 | 2019-04-03 | Globeride, Inc. | Magnetic fluid sealing device and magnetic fluid sealed bearing |
| US10451115B2 (en) | 2017-09-29 | 2019-10-22 | Globeride, Inc. | Magnetic fluid sealing device and magnetic fluid sealed bearing |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0229321Y2 (en) | 1990-08-07 |
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