CN2802206Y - Spiral sealing compensation device - Google Patents
Spiral sealing compensation device Download PDFInfo
- Publication number
- CN2802206Y CN2802206Y CN 200520090986 CN200520090986U CN2802206Y CN 2802206 Y CN2802206 Y CN 2802206Y CN 200520090986 CN200520090986 CN 200520090986 CN 200520090986 U CN200520090986 U CN 200520090986U CN 2802206 Y CN2802206 Y CN 2802206Y
- Authority
- CN
- China
- Prior art keywords
- sealing
- spiral
- compensation device
- rotary shaft
- state
- 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.)
- Expired - Lifetime
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Abstract
The utility model relates to a spiral sealing compensation device, which is provided with a rotary shaft, and a moving and a stationary sleeves of a spiral sealing mechanism, wherein the outer wall of the moving sleeve and the inner wall of the stationary sleeve are processed with a corresponding spiral groove, and a stopper is arranged on the end surface of the moving sleeve along the axial direction of the rotary shaft; a butting position of the stopper and the outer wall of the circumference of the stationary sleeve is sheathed with an elastic sealing ring; the elastic sealing ring is a columnar body, the inner walls on both end parts are provided with a plurality of sealing protrusions, and the inner and the outer walls at the middle part are provided with circular arc-shaped dents. The utility model has the advantages of simple structure, convenient installation, easy processing and manufacture, good sealing effect, etc. The spiral sealing compensation device can realize the sealing of the rotary shaft under the state of high-speed running and can also complete the sealing of the rotary shaft under the state of low-speed or stationary state.
Description
Technical field the utility model relates to a kind of mechanical seal structure, especially a kind of spiral seal compensation device that is used for rotatingshaft axial seal.
Technical background is present, its principle of untouchable spiral seal that mechanical transmission adopts is identical with the motion principle of spiral propeller, the medium that is screw thread double thread surface in rotation produces end thrust, thereby stop liquid to be revealed, so can realize the sealing of rotating shaft under the state of running up, but when being in low speed or static operating condition, rotating shaft, can't realize preferable sealing effect because end thrust is less.
The summary of the invention the purpose of this utility model provides a kind of rotatingshaft and is in the spiral seal compensation device that can realize axial seal under low speed or the state of rest.
For achieving the above object, the utility model spiral seal compensation device is the moving cover of rotatingshaft, spiral seal mechanism, quiet cover, the outer wall of moving cover and the inwall of quiet cover are processed with corresponding spiral chute, the moving cover end face axial along rotatingshaft is provided with block, wherein the outer circumferential walls leaning of block and quiet cover is socketed with elastic seal ring, this elastic seal ring is a plurality of sealing projections for the two end part inwall is provided with, and the inside and outside wall at middle part is the Cylindrical object of circular-arc depression.
After adopting said structure, can realize axial seal by spiral seal when rotatingshaft is in the high rotational speed state, the part that this moment, elastic seal ring was positioned at quiet cover can be opened under action of centrifugal force slightly, and relative rotation wearing and tearing do not take place.Along with the reduction gradually of rotatingshaft rotating speed, elastic seal ring variant part branch sets back gradually.When rotatingshaft was in than the slow-speed of revolution or state of rest, a plurality of sealing projections of elastic seal ring two end part inwall mounting board tightly realized the sealing under this state on the outer circumferential walls surface of block and quiet cover.
The utility model has the advantages that: processing and fabricating simple in structure, easy for installation, easy, good sealing effect.
Description of drawings Fig. 1 is the structural representation of the utility model spiral seal compensation device.
Embodiment such as Fig. 1 show, the utility model spiral seal compensation device is moving cover 2, the quiet cover 3 of rotatingshaft 1, spiral seal mechanism, the outer wall of moving cover and the inwall of quiet cover are processed with corresponding spiral chute, along rotatingshaft 1 axial moving cover 2 end faces block 4 is installed, the outer circumferential walls leaning of block and quiet cover 3 is socketed with rubber system elastic seal ring 5, this elastic seal ring is a plurality of sealing projections for the two end part inwall is processed with, and the inside and outside wall at middle part is the Cylindrical object of circular-arc depression.Can realize axial seal by the spiral seal structure when machinery when running rotatingshaft is in the high rotational speed state, the elastic seal ring part that is positioned at quiet cover can be opened under action of centrifugal force slightly at this moment, the wearing and tearing that taken place by relative movement do not occur.When rotatingshaft was in than the slow-speed of revolution or state of rest, a plurality of sealing projections of elastic seal ring two end part inwall mounting board tightly realized the sealing under this state on the outer circumferential walls surface of block and quiet cover.The utlity model has characteristics such as processing and fabricating simple in structure, easy for installation, easy, good sealing effect.Can realize that promptly rotatingshaft is in the sealing under the state of running up, can finish rotatingshaft again and be in sealing under low speed or the state of rest.
Claims (1)
1, a kind of spiral seal compensation device, comprise: the moving cover (2) of rotatingshaft (1), spiral seal mechanism, quiet cover (3), the outer wall of moving cover and the inwall of quiet cover are processed with corresponding spiral chute, moving cover (2) end face axial along rotatingshaft (1) is provided with block (4), it is characterized in that: the outer circumferential walls leaning of block and quiet cover (3) is socketed with elastic seal ring (5), this elastic seal ring is a plurality of sealing projections for the two end part inwall is provided with, and the inside and outside wall at middle part is the Cylindrical object of circular-arc depression.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520090986 CN2802206Y (en) | 2005-05-23 | 2005-05-23 | Spiral sealing compensation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520090986 CN2802206Y (en) | 2005-05-23 | 2005-05-23 | Spiral sealing compensation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2802206Y true CN2802206Y (en) | 2006-08-02 |
Family
ID=36846914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520090986 Expired - Lifetime CN2802206Y (en) | 2005-05-23 | 2005-05-23 | Spiral sealing compensation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2802206Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105757236A (en) * | 2016-04-22 | 2016-07-13 | 侯马经济开发区日祥科技有限公司 | Sealing clamp |
-
2005
- 2005-05-23 CN CN 200520090986 patent/CN2802206Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105757236A (en) * | 2016-04-22 | 2016-07-13 | 侯马经济开发区日祥科技有限公司 | Sealing clamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150523 Granted publication date: 20060802 |