CN2799992Y - Negative pressure type sealing device - Google Patents
Negative pressure type sealing device Download PDFInfo
- Publication number
- CN2799992Y CN2799992Y CN 200520090988 CN200520090988U CN2799992Y CN 2799992 Y CN2799992 Y CN 2799992Y CN 200520090988 CN200520090988 CN 200520090988 CN 200520090988 U CN200520090988 U CN 200520090988U CN 2799992 Y CN2799992 Y CN 2799992Y
- Authority
- CN
- China
- Prior art keywords
- utility
- model
- negative pressure
- pressure type
- rotating shaft
- 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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- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model relates to a negative pressure type sealing device. A wind belt is fixedly connected with the circumferential surface of a rotating shaft and is composed of a flat sheet fixedly connected with the surface of the rotating shaft and a folding sheet which is perpendicular to the flat sheet in a right angle, the surface of the folding sheet is processed with equal T-shaped grooves evenly distributed, and fan blades formed among the grooves are parallel to each other and are crossed with the folding sheet. The utility model has the characteristics of simple structure, convenient and practical installation, low production cost, etc. An axial flowing airflow can be formed in the process that the fan blades rotate along with the rotating shaft to prevent liquid oil on the shaft surface from leaking outwards along the shaft surface, and then the utility model achieves a better sealing effect.
Description
Technical field the utility model relates to a kind of seal arrangement, especially a kind of negative pressure type seal arrangement that is installed on the rotatingshaft axial plane.
Technical background is present, and the sealing configuration of machinery adopts contact seal and two kinds of forms of noncontact seal more.Component, assembly precision height that contact seal adopts machining to make owing to wear and tear, need periodic replacement, the cost of production height in the equipment operation.Though noncontact seal has wearing and tearing but processing, installation precision require highly, sealing effect is unreliable, needs to increase auxiliary sealing configuration; Be not suitable for using at the working environment that impurity is arranged.
The summary of the invention the purpose of this utility model provides the negative pressure type seal arrangement of realizing sealing in a kind of rotatingshaft operation process.
For achieving the above object, the utility model negative pressure type seal arrangement is connected with strip wind band for the circumferential surface at rotatingshaft, this wind band is formed by the plain film affixed with rotating axial plane with the tabs that plain film is vertical setting, flaps surface is processed with the uniform T type groove that is equal to, and the flabellum that forms between groove and the groove is parallel to each other and becomes arranged in a crossed manner with tabs.
After adopting said structure, because the wind band can rotate with rotatingshaft in the running of equipment, the flabellum above the wind band can rotate thereupon, forms inside eddy airstream, gas flows along the rotatingshaft axial surface, thereby stops the liquid oil of axial plane outwards to be revealed along axial plane.
The utility model has the advantages that: practicality simple in structure, easy for installation, cost of production are low, form the axial flow air-flow in the process that can rotate with running shaft by flabellum, stop the liquid oil of axial plane outwards to be revealed along axial plane, reach better sealing effect.
Description of drawings Fig. 1 is the structural representation of the utility model negative pressure type seal arrangement.
Fig. 2 is the unfolded drawing of the utility model negative pressure type seal arrangement strip wind band.
Embodiment such as Fig. 1,2 show, the utility model negative pressure type seal arrangement for the circumferential surface of rotatingshaft 1 in machinery by welding or be bonded with steel strip wind band 2, this wind band 2 by with rotate axial plane welding or bonding plain film 2-1 and form with tabs 2-2 that plain film is vertical bending, flaps surface is processed with the uniform T type groove 3 that is equal to, and the flabellum 4 that forms between groove and the groove is parallel to each other and becomes to intersect 45 ° of settings with tabs.
Because the wind band can rotate with rotatingshaft in the running of equipment, and the flabellum above the wind band can rotate, and forms inside eddy airstream thereupon, gas flows along the rotatingshaft axial surface in the use, thereby stops the liquid oil of axial plane outwards to be revealed along axial plane.
The utlity model has characteristics such as practicality simple in structure, easy for installation, cost of production be low, form the axial flow air-flow in the process that can rotate with running shaft by flabellum, stop the liquid oil of axial plane outwards to be revealed along axial plane, use with being installed in axial other seal combination, reach better sealing effect.
The utility model tabs structure also can adopt other modes, and for example the chip architecture that becomes cross-like with tabs that is parallel to each other in the welding of the upper end of tabs also can realize effect described in the utility model, also belongs to protection domain of the present utility model.
Claims (1)
1, a kind of negative pressure type seal arrangement, it is characterized in that: the circumferential surface at rotatingshaft (1) is connected with strip wind band (2), this wind band (2) is made up of plain film (2-1) affixed with rotating axial plane and the tabs (2-2) that is vertical setting with plain film, flaps surface is processed with the uniform T type groove (3) that is equal to, and the flabellum (4) that forms between groove and the groove is parallel to each other and becomes arranged in a crossed manner with tabs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520090988 CN2799992Y (en) | 2005-05-23 | 2005-05-23 | Negative pressure type sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520090988 CN2799992Y (en) | 2005-05-23 | 2005-05-23 | Negative pressure type sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2799992Y true CN2799992Y (en) | 2006-07-26 |
Family
ID=36842488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520090988 Expired - Lifetime CN2799992Y (en) | 2005-05-23 | 2005-05-23 | Negative pressure type sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2799992Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105333154A (en) * | 2014-08-12 | 2016-02-17 | 刘伟 | Fluid sealing structure for rotating shaft |
-
2005
- 2005-05-23 CN CN 200520090988 patent/CN2799992Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105333154A (en) * | 2014-08-12 | 2016-02-17 | 刘伟 | Fluid sealing structure for rotating shaft |
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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: 20060726 |