JPH0389275U - - Google Patents
Info
- Publication number
- JPH0389275U JPH0389275U JP15132289U JP15132289U JPH0389275U JP H0389275 U JPH0389275 U JP H0389275U JP 15132289 U JP15132289 U JP 15132289U JP 15132289 U JP15132289 U JP 15132289U JP H0389275 U JPH0389275 U JP H0389275U
- Authority
- JP
- Japan
- Prior art keywords
- ring
- shaft
- cylindrical part
- inner diameter
- diameter cylindrical
- 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
- 238000012856 packing Methods 0.000 claims description 3
- 230000013011 mating Effects 0.000 claims description 2
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims 1
Description
第１図は本考案に係るメカニカルシールの一実
施例を示す断面図、第２図は従来構造のメカニカ
ルシールを示す半裁断面図である。
１…ハウジング、２…シヤフト、４…メイテイ
ングリング、５…シールリング、７…軸パツキン
、７ａ…内径筒状部、８…コイルスプリング、１
０…締付リング、１１…切断部。
FIG. 1 is a sectional view showing an embodiment of a mechanical seal according to the present invention, and FIG. 2 is a half-cut sectional view showing a mechanical seal having a conventional structure. DESCRIPTION OF SYMBOLS 1... Housing, 2... Shaft, 4... Mating ring, 5... Seal ring, 7... Shaft packing, 7a... Inner diameter cylindrical part, 8... Coil spring, 1
0...Tightening ring, 11...Cutting part.
Claims (1)
ングリングの端面に、シヤフト外周に装着された
回転側のシールリングがコイルスプリングで押し
付けられ、シールリングには内径筒状部がシヤフ
ト外周に密着する軸パツキンが接着されたメカニ
カルシールにおいて、前記軸パツキンの内径筒状
部の外周面に、円周方向一部が切断された拡縮径
自在な締付リングを嵌着し、この締付リングは高
温条件で縮径変形する形状記憶合金からなること
を特徴とするメカニカルシール。 The rotary side seal ring attached to the shaft outer circumference is pressed against the end face of the stationary side mating ring fitted to the inner circumference of the housing by a coil spring, and the inner diameter cylindrical part of the seal ring is in close contact with the shaft outer circumference. In a mechanical seal to which a shaft packing is bonded, a tightening ring whose diameter can be expanded or contracted by cutting a part in the circumferential direction is fitted onto the outer circumferential surface of the inner diameter cylindrical part of the shaft packing, and this tightening ring is heated to a high temperature. A mechanical seal characterized by being made of a shape memory alloy that shrinks and deforms depending on the conditions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15132289U JPH0389275U (en) | 1989-12-28 | 1989-12-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15132289U JPH0389275U (en) | 1989-12-28 | 1989-12-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0389275U true JPH0389275U (en) | 1991-09-11 |
Family
ID=31697628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15132289U Pending JPH0389275U (en) | 1989-12-28 | 1989-12-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0389275U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109424748A (en) * | 2017-08-24 | 2019-03-05 | 三菱重工业株式会社 | Axle sealing structure and a coolant circulating pump |
-
1989
- 1989-12-28 JP JP15132289U patent/JPH0389275U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109424748A (en) * | 2017-08-24 | 2019-03-05 | 三菱重工业株式会社 | Axle sealing structure and a coolant circulating pump |