JPS61103670U - - Google Patents
Info
- Publication number
- JPS61103670U JPS61103670U JP18815084U JP18815084U JPS61103670U JP S61103670 U JPS61103670 U JP S61103670U JP 18815084 U JP18815084 U JP 18815084U JP 18815084 U JP18815084 U JP 18815084U JP S61103670 U JPS61103670 U JP S61103670U
- Authority
- JP
- Japan
- Prior art keywords
- sealing element
- side sealing
- sealed
- small gap
- face
- 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
- 238000007789 sealing Methods 0.000 claims description 8
- 239000011553 magnetic fluid Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims 2
- 239000012530 fluid Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Mechanical Sealing (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Description
第１図は本考案の一実施例に係るメカニカルシ
ールの正断面図、第２図は同要部拡大断面図、第
３図は従来の磁性流体シールを示す説明図である
。
１……ハウジング、３……フローテイングシー
ト、４……固定側密封要素、５……回転軸、６…
…シールリング、１１……コイルスプリング、１
２……回転側密封要素、１３，１４，１５，１６
……永久磁石、１７……磁気回路、１８，１９…
…小間隙、２０，２１……磁性流体。
FIG. 1 is a front sectional view of a mechanical seal according to an embodiment of the present invention, FIG. 2 is an enlarged sectional view of the same essential part, and FIG. 3 is an explanatory diagram showing a conventional magnetic fluid seal. DESCRIPTION OF SYMBOLS 1... Housing, 3... Floating sheet, 4... Fixed side sealing element, 5... Rotating shaft, 6...
... Seal ring, 11 ... Coil spring, 1
2...Rotating side sealing element, 13, 14, 15, 16
...Permanent magnet, 17...Magnetic circuit, 18,19...
...Small gap, 20,21...Magnetic fluid.
Claims (1)
側密封要素と上記軸孔に挿通した回転軸外周に気
密的に担持した回転側密封要素の両者対向端面の
摺接により被シール流体を軸封するメカニカルシ
ールにおいて、前記固定側密封要素と回転側密封
要素の両対向端面の外周端面および内周端面の少
なくとも一方に小間隙を隔してそれぞれ永久磁石
を周設して、両密封要素を横断する磁気回路を形
成するとともに、上記小間隙に磁性流体を充填保
持せしめ、両密封要素間を密封するようになるこ
とを特徴とするメカニカルシール。 The fluid to be sealed is shaft-sealed by the sliding contact of the opposing end surfaces of the stationary side sealing element airtightly supported on the inner periphery of the shaft hole of the housing and the rotating side sealing element airtightly supported on the outer periphery of the rotating shaft inserted into the shaft hole. In the mechanical seal, a permanent magnet is provided around at least one of the outer peripheral end face and the inner peripheral end face of the opposing end faces of the stationary side sealing element and the rotating side sealing element, with a small gap therebetween, so as to cross both the sealing elements. 1. A mechanical seal characterized in that a magnetic circuit is formed, and a magnetic fluid is filled and held in the small gap to seal between both sealing elements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18815084U JPS61103670U (en) | 1984-12-13 | 1984-12-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18815084U JPS61103670U (en) | 1984-12-13 | 1984-12-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61103670U true JPS61103670U (en) | 1986-07-01 |
Family
ID=30745620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18815084U Pending JPS61103670U (en) | 1984-12-13 | 1984-12-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61103670U (en) |
-
1984
- 1984-12-13 JP JP18815084U patent/JPS61103670U/ja active Pending
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