JPS61186792U - - Google Patents
Info
- Publication number
- JPS61186792U JPS61186792U JP7177185U JP7177185U JPS61186792U JP S61186792 U JPS61186792 U JP S61186792U JP 7177185 U JP7177185 U JP 7177185U JP 7177185 U JP7177185 U JP 7177185U JP S61186792 U JPS61186792 U JP S61186792U
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- emergency
- chamber
- seal ring
- oil chamber
- 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
- 230000004913 activation Effects 0.000 claims 2
- 238000007789 sealing Methods 0.000 claims 2
- 238000005192 partition Methods 0.000 claims 1
Landscapes
- Mechanical Sealing (AREA)
Description
第１図は本考案の一実施例を示す要部半縦断面
図、第２図は本考案の他の実施例を示す要部半縦
断面図、第３図及び第４図はそれぞれ従来例を示
す要部半縦断面図である。
１はハウジング、１ａは内向き鍔部、２は回転
軸、２ａは外周鍔部、３は回転リング、４は油室
、８はシールリング、８ａはピストン部、９，１
４，１６はバネ、１０は従動リング、１０ａは従
動リングホルダ、１１はベロー、１２は圧力室、
１３はソフトパツキン、１５はＯリングである。
FIG. 1 is a half-longitudinal cross-sectional view of the main part showing one embodiment of the present invention, FIG. 2 is a half-longitudinal cross-sectional view of the main part showing another embodiment of the present invention, and FIGS. 3 and 4 are conventional examples, respectively. FIG. 1 is a housing, 1a is an inward flange, 2 is a rotating shaft, 2a is an outer periphery flange, 3 is a rotating ring, 4 is an oil chamber, 8 is a seal ring, 8a is a piston part, 9, 1
4 and 16 are springs, 10 is a driven ring, 10a is a driven ring holder, 11 is a bellows, 12 is a pressure chamber,
13 is a soft gasket, and 15 is an O-ring.
Claims (1)
して圧力室内の被密封媒体を軸封する構造であつ
て、油室内の圧力がこれと隣接の圧力室内の圧力
より低いときその差圧により非常用シール作動側
に移動しうるピストン部を、ハウジング側の前記
両室間を仕切る内向き鍔部に進退自在に収嵌し、
このピストン部と同体的なシールリングを非常用
シール作動側に移動したとき回転軸側のシール面
と気密的に摺接しうるように対向配置したことを
特徴とする非常用軸封装置。 It is a structure that seals the sealed medium in the pressure chamber by using the hydraulic pressure in the oil chamber which is higher than the pressure of the sealed medium, and when the pressure in the oil chamber is lower than the pressure in the adjacent pressure chamber, the pressure difference A piston portion that can move toward the emergency seal activation side is fitted in an inward flange portion that partitions the two chambers on the housing side so as to be able to move forward and backward;
An emergency shaft sealing device characterized in that a seal ring integral with the piston portion is disposed so as to face the sealing surface on the rotating shaft side in an airtight sliding manner when the seal ring is moved to the emergency seal activation side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7177185U JPS61186792U (en) | 1985-05-15 | 1985-05-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7177185U JPS61186792U (en) | 1985-05-15 | 1985-05-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61186792U true JPS61186792U (en) | 1986-11-21 |
Family
ID=30609559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7177185U Pending JPS61186792U (en) | 1985-05-15 | 1985-05-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61186792U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012241724A (en) * | 2011-05-16 | 2012-12-10 | Eagle Industry Co Ltd | Shutdown seal for mechanical seal |
-
1985
- 1985-05-15 JP JP7177185U patent/JPS61186792U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012241724A (en) * | 2011-05-16 | 2012-12-10 | Eagle Industry Co Ltd | Shutdown seal for mechanical seal |
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