JPH03127869U - - Google Patents
Info
- Publication number
- JPH03127869U JPH03127869U JP3653490U JP3653490U JPH03127869U JP H03127869 U JPH03127869 U JP H03127869U JP 3653490 U JP3653490 U JP 3653490U JP 3653490 U JP3653490 U JP 3653490U JP H03127869 U JPH03127869 U JP H03127869U
- Authority
- JP
- Japan
- Prior art keywords
- sealing surface
- ring
- shaft sealing
- pressure chamber
- annular groove
- 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.)
- Granted
Links
- 238000007789 sealing Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims 2
- 239000012530 fluid Substances 0.000 claims 1
Landscapes
- Mechanical Sealing (AREA)
Description
第１図は本考案によるメカニカルシールの一例
を示す断面図、第２図はその回転リングの軸封面
を示す図、第３図は従来のメカニカルシールを示
す断面図、第４図はその固定リングの軸封面を示
す図である。
１……回転リング、２……固定リング、３……
高圧室、４……低圧室、５……回転軸、６，７…
…軸スリーブ、８……ケーシング、９……シール
ハウジング、１０……ばね、１１……環状溝、１
２……連通孔、１３……軸受部摺動面、１４……
らせん溝、１５……シール部摺動面、３１……ら
せん溝、３２……支持リング。
Fig. 1 is a cross-sectional view showing an example of the mechanical seal according to the present invention, Fig. 2 is a view showing the shaft sealing surface of its rotating ring, Fig. 3 is a cross-sectional view showing a conventional mechanical seal, and Fig. 4 is its fixed ring. It is a figure showing the shaft sealing surface of. 1... Rotating ring, 2... Fixed ring, 3...
High pressure chamber, 4...Low pressure chamber, 5...Rotating shaft, 6,7...
...shaft sleeve, 8 ... casing, 9 ... seal housing, 10 ... spring, 11 ... annular groove, 1
2... Communication hole, 13... Bearing sliding surface, 14...
Spiral groove, 15... Seal portion sliding surface, 31... Spiral groove, 32... Support ring.
Claims (1)
繞するケーシングに取付けらればねにより前記回
転リングに向つて押付けられる固定リングとで軸
封面を形成して高圧室と低圧室との間をシールし
、前記固定リングの軸封面には環状溝を設けてい
るとともに、この環状溝を前記高圧室に連通する
連通孔を固定リングの円周方向に複数個設けてな
るメカニカルシールにおいて、前記固定リングの
軸封面における環状溝で区画さえた半径方向外側
の高圧側部分に相対する前記回転リングの軸封面
の部分に、回転軸の回転により前記固定リングの
環状溝内の流体を前記高圧室側方向へ移送するら
せん溝を円周方向に複数個設け、かつ前記固定リ
ングの少なくとも軸封面を回転リングの軸封面よ
りも材料硬度の低い材料で形成したことを特徴と
するメカニカルシール。 A rotating ring fixed to a rotating shaft and a fixed ring attached to a casing surrounding the rotating shaft and pressed toward the rotating ring by a spring form a shaft sealing surface to seal between a high pressure chamber and a low pressure chamber. , a mechanical seal comprising an annular groove in the shaft sealing surface of the fixing ring, and a plurality of communication holes in the circumferential direction of the fixing ring that communicate the annular groove with the high pressure chamber; The fluid in the annular groove of the fixed ring is directed toward the high pressure chamber side by rotation of the rotating shaft to a portion of the shaft sealing surface of the rotary ring that faces the radially outer high pressure side portion partitioned by the annular groove in the shaft sealing surface. A mechanical seal characterized in that a plurality of spiral grooves for conveyance are provided in the circumferential direction, and at least the shaft sealing surface of the fixed ring is formed of a material having a lower material hardness than the shaft sealing surface of the rotating ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3653490U JPH0726613Y2 (en) | 1990-04-06 | 1990-04-06 | mechanical seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3653490U JPH0726613Y2 (en) | 1990-04-06 | 1990-04-06 | mechanical seal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03127869U true JPH03127869U (en) | 1991-12-24 |
| JPH0726613Y2 JPH0726613Y2 (en) | 1995-06-14 |
Family
ID=31542848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3653490U Expired - Fee Related JPH0726613Y2 (en) | 1990-04-06 | 1990-04-06 | mechanical seal |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0726613Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007524790A (en) * | 2003-02-28 | 2007-08-30 | エイ・ダブリュー・チェスタトン・カンパニー | Balanced mechanical seal assembly |
| JP2007327633A (en) * | 2006-06-09 | 2007-12-20 | Eagle Ind Co Ltd | Mechanical seal device |
-
1990
- 1990-04-06 JP JP3653490U patent/JPH0726613Y2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007524790A (en) * | 2003-02-28 | 2007-08-30 | エイ・ダブリュー・チェスタトン・カンパニー | Balanced mechanical seal assembly |
| JP4704330B2 (en) * | 2003-02-28 | 2011-06-15 | エイ・ダブリュー・チェスタトン・カンパニー | Balanced mechanical seal assembly |
| JP2007327633A (en) * | 2006-06-09 | 2007-12-20 | Eagle Ind Co Ltd | Mechanical seal device |
| JP4699946B2 (en) * | 2006-06-09 | 2011-06-15 | イーグル工業株式会社 | Mechanical seal device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0726613Y2 (en) | 1995-06-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |