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
Links
- 239000011553 magnetic fluid Substances 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims 2
- 230000002093 peripheral effect Effects 0.000 claims 1
Landscapes
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Description
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)
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.
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)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007004690A1 (en) * | 2005-06-30 | 2007-01-11 | Rigaku Corporation | Magnetic fluid sealing device |
-
1985
- 1985-07-22 JP JP11218685U patent/JPS6220268U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007004690A1 (en) * | 2005-06-30 | 2007-01-11 | Rigaku Corporation | Magnetic fluid sealing device |
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