JPS6194658U - - Google Patents
Info
- Publication number
- JPS6194658U JPS6194658U JP18105384U JP18105384U JPS6194658U JP S6194658 U JPS6194658 U JP S6194658U JP 18105384 U JP18105384 U JP 18105384U JP 18105384 U JP18105384 U JP 18105384U JP S6194658 U JPS6194658 U JP S6194658U
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- permanent magnet
- rotating shaft
- magnetic pole
- outer periphery
- 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 5
- 230000004907 flux Effects 0.000 claims description 3
- 125000006850 spacer group Chemical group 0.000 claims description 2
- 239000000696 magnetic material Substances 0.000 claims 2
- 230000037431 insertion Effects 0.000 claims 1
- 238000003780 insertion Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Description
第１図および第２図はこの考案の一実施例を示
す磁性流体シールの断面図と分解斜視図、第３図
と第４図は従来の磁性流体シールの概要図と平面
図である。
１は永久磁石、２，３は磁極板、４は回転軸、
７は漏洩磁束、８，９はスペーサ、１０は外部磁
気回路部材、１０ａは接合面である。なお、図中
、同一符号は同一又は相当部分を示す。
1 and 2 are a sectional view and an exploded perspective view of a magnetic fluid seal showing an embodiment of the invention, and FIGS. 3 and 4 are a schematic diagram and a plan view of a conventional magnetic fluid seal. 1 is a permanent magnet, 2 and 3 are magnetic pole plates, 4 is a rotating shaft,
7 is a leakage magnetic flux, 8 and 9 are spacers, 10 is an external magnetic circuit member, and 10a is a joining surface. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.
Claims (1)
合され、中心に貫通された回転軸の周囲に間隙を
有するように挿通孔を設けた磁極板とからなり、
磁極板と回転軸間に流れる磁束により回転軸外周
部に磁性流体を形成するようにした磁性流体シー
ルにおいて、上記永久磁石および上下面の磁極板
の外周部を非磁性材のスペーサを介在して断面コ
字形の磁性材からなる外部磁気回路部材で包囲し
、かつこの外部磁気回路部材が永久磁石の外周側
に発生する漏洩磁束の流れ方向に接合面を有する
分割合体部材からなることを特徴とする磁性流体
シール。 It consists of an annular permanent magnet and a magnetic pole plate that is connected to the upper and lower surfaces of the permanent magnet and has an insertion hole provided with a gap around a rotating shaft penetrated through the center,
In a magnetic fluid seal that forms a magnetic fluid around the outer periphery of the rotating shaft by magnetic flux flowing between the magnetic pole plate and the rotating shaft, the permanent magnet and the outer periphery of the upper and lower magnetic pole plates are connected to each other by interposing spacers made of non-magnetic material. It is characterized by being surrounded by an external magnetic circuit member made of a magnetic material having a U-shaped cross section, and this external magnetic circuit member is made of a fractional body member having a joint surface in the flow direction of leakage magnetic flux generated on the outer circumferential side of the permanent magnet. magnetic fluid seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18105384U JPS6194658U (en) | 1984-11-29 | 1984-11-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18105384U JPS6194658U (en) | 1984-11-29 | 1984-11-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6194658U true JPS6194658U (en) | 1986-06-18 |
Family
ID=30738611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18105384U Pending JPS6194658U (en) | 1984-11-29 | 1984-11-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6194658U (en) |
-
1984
- 1984-11-29 JP JP18105384U patent/JPS6194658U/ja active Pending
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