CN103982662A - Rotary sealing device - Google Patents
Rotary sealing device Download PDFInfo
- Publication number
- CN103982662A CN103982662A CN201410255755.6A CN201410255755A CN103982662A CN 103982662 A CN103982662 A CN 103982662A CN 201410255755 A CN201410255755 A CN 201410255755A CN 103982662 A CN103982662 A CN 103982662A
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- China
- Prior art keywords
- seal ring
- sealing ring
- rotating
- rotary
- sealing
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- 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.)
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Abstract
The invention relates to a rotary sealing device which comprises a stationary sealing ring and a rotary sealing ring, wherein the rotary sealing ring is attached to the stationary sealing ring. The rotary sealing device is characterized in that a curved groove is formed in the sealing surface of the rotating sealing ring which is attached to the stationary sealing ring, the curved groove is a rotary groove which is inclined inward to extend from the external circle of the rotary sealing ring and is not connected with the inner circle of the rotary sealing ring, sealed media which enter a space between the attached surfaces of the rotary sealing ring and the stationary sealing ring are centrifugally thrown out along with the curved groove during rotation, and the inclined direction of the curved groove is consistent with the rotary direction of the rotary sealing ring. According to the rotary sealing device, the curved groove is formed in the sealing surface of the rotating sealing ring, so that the sealed media which try to pass through a static pressure sealing area flows to the outer circumference of the sealing end surface to be discharged outward, thereby forming a high-pressure area relative to the sealed media on the external circle of the sealing end surface and preventing the sealed media from passing through the high-pressure area, the sealing performance and the reliability of the device are greatly improved, and additionally, the service life of the device is prolonged.
Description
Technical field
The present invention relates to a kind of rotating sealing device.
Background technique
A large amount of motor that use in modern industry activity in production, generator and miscellaneous equipment all be unable to do without seal arrangement, particularly for large-size machine, its inner liquid or gas cooling of adopting, seal arrangement must guarantee that the fluid of casing inside can not leak, the patent No. 2013206791002 < < rotating sealing device > > discloses a kind of rotating sealing device, its it comprise rotating shaft, end cap, stationary seal ring, rotating seal ring, O shape circle and spring, in end cap inner side, rotating seal ring interference fit is arranged in rotating shaft, inner side at rotating seal ring is provided with spring, the pressure of spring is greater than promotion rotating seal ring and moves axially required thrust, outside at rotating seal ring is provided with stationary seal ring, between stationary seal ring and end cap, be provided with O type circle.But the problem that sealing device exists is, during work rotation, to have certain leakage, thereby affected reliability and the working life of motor between stationary seal ring and rotating seal ring.
Summary of the invention
The object of the invention is to overcome above defect, a kind of rotating sealing device of close tolerance seal is provided.
The object of the invention is to realize by technological scheme once, a kind of rotating sealing device, it comprises stationary seal ring, rotating seal ring, rotating seal ring and stationary seal ring fit together, on the sealing surface of the rotating seal ring with stationary seal ring laminating, be provided with curvilinear groove, described curvilinear groove for sloping inwardly from rotating seal ring cylindrical, extend but with the disjunct swivelling chute of rotating seal ring inner circle, while entering into the sealed medium rotation between rotating seal ring and stationary seal ring faying surface, with curvilinear groove is centrifugal, throw away, the true dip direction of described curvilinear groove is consistent with the sense of rotation of rotating seal ring.
The degree of depth of described curvilinear groove is greater than the design wear allowance that rotating seal ring sealing surface is set.
The degree of depth of described curvilinear groove is more than or equal to 3mm.
Useful technique effect of the present invention is: the setting of rotating seal ring sealing surface upper curve groove, making to attempt the excircle that sealed medium by hydrostatic seal region flows to seal face discharges, thereby the cylindrical place at seal face forms a high-pressure area with respect to sealing medium, thereby prevent that sealed medium from passing through this high-pressure area, the sealability and the reliability that have greatly improved this device have improved working life simultaneously.
Accompanying drawing explanation
Fig. 1 is embodiments of the invention structural drawing;
Fig. 2 is the right elevation of Fig. 1 rotary packing ring 7.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
With reference to accompanying drawing, a kind of rotating sealing device, it comprises rotating shaft 1, shell 6, end cap 5, O-ring seals 3, flat key 4, adjusting nut 8, bolt 11, stationary seal ring 2, rotating seal ring 7, spring 9 and spring seat 10, end cap 5 is fixedly connected on casing 6 outsides, end cap 5 inner sides are provided with concave station along axis hole, stationary seal ring 2 use bolt 11 pines are connected in end cap 5 inner sides, stationary seal ring 2 contact end cap 5 one sides are provided with boss along axis hole, described boss matches with the concave station of end cap 5, between end cap 5 and stationary seal ring 2 surface of contact, between boss and concave station surface of contact, be provided with O-ring seals 3, rotating seal ring 7 is arranged in the rotating shaft 1 of stationary seal ring 2 inner sides, between rotating seal ring 7 and rotating shaft 1, be provided with O-ring seals 3, in rotating seal ring 7 inner sides, be provided with spring seat 10, the inner side of spring seat 10 is provided with adjusting nut 8, between rotating seal ring 7 and spring seat 10, be provided with spring 9, rotating seal ring 7, spring seat 10 connects with rotating shaft 1 by flat key 4, rotating seal ring 7 fits together with stationary seal ring 2, on the sealing surface of the rotating seal ring 7 with stationary seal ring 2 laminatings, be provided with curvilinear groove 12, described curvilinear groove 12 for sloping inwardly from rotating seal ring 7 cylindricals, extend but with the disjunct swivelling chute of rotating seal ring 7 inner circle, while entering into the sealed medium rotation between rotating seal ring 7 and stationary seal ring 2 faying surfaces, with curvilinear groove 12 is centrifugal, throw away, the true dip direction of described curvilinear groove 12 is consistent with the sense of rotation of rotating seal ring 7, the degree of depth of curvilinear groove 12 is 5mm.
Claims (3)
1. a rotating sealing device, it comprises stationary seal ring, rotating seal ring, rotating seal ring and stationary seal ring fit together, it is characterized in that, the sealing surface described and rotating seal ring that stationary seal ring is fitted is provided with curvilinear groove, described curvilinear groove for sloping inwardly from rotating seal ring cylindrical, extend but with the disjunct swivelling chute of rotating seal ring inner circle, while entering into the sealed medium rotation between rotating seal ring and stationary seal ring faying surface, with curvilinear groove is centrifugal, throw away, the true dip direction of described curvilinear groove is consistent with the sense of rotation of rotating seal ring.
2. a kind of rotating sealing device according to claim 1, is characterized in that, the degree of depth of described curvilinear groove is greater than the design wear allowance that rotating seal ring sealing surface is set.
3. according to claim 1 or a kind of rotating sealing device claimed in claim 2, it is characterized in that, the degree of depth of described curvilinear groove is more than or equal to 3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410255755.6A CN103982662A (en) | 2014-06-11 | 2014-06-11 | Rotary sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410255755.6A CN103982662A (en) | 2014-06-11 | 2014-06-11 | Rotary sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103982662A true CN103982662A (en) | 2014-08-13 |
Family
ID=51274752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410255755.6A Pending CN103982662A (en) | 2014-06-11 | 2014-06-11 | Rotary sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103982662A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104728448A (en) * | 2015-02-11 | 2015-06-24 | 湖州宜可欧环保科技有限公司 | Sealing mechanism preventing gas exchange |
| CN106015081A (en) * | 2016-06-30 | 2016-10-12 | 温州市康而达实业有限公司 | Fan-shaped air power separation type sealing ring |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110024987A1 (en) * | 2009-07-31 | 2011-02-03 | Sputtering Components, Inc. | Mechanical seal assembly for a rotatable shaft |
| CN102927282A (en) * | 2012-11-12 | 2013-02-13 | 西华大学 | Mechanical sealing device provided with depth-keeping ratio step groove end face sealing rings |
| CN103090006A (en) * | 2013-02-04 | 2013-05-08 | 北京理工大学 | Spiral groove rotary sealing ring with cone-shaped cross section and used on vehicle |
| CN203335870U (en) * | 2013-05-28 | 2013-12-11 | 南京林业大学 | Self-pumping fluid-dynamic-pressure-type mechanical seal |
| CN103527792A (en) * | 2013-11-06 | 2014-01-22 | 南京林业大学 | Rotating seal ring with upstream pumping mechanical seal and end face type grooves thereof |
| CN203413119U (en) * | 2013-02-26 | 2014-01-29 | 浙江工业大学 | Sharkskin imitation streamline groove end face mechanical sealing structure |
| CN103557334A (en) * | 2013-11-14 | 2014-02-05 | 江苏大学 | Multiple-end face combined type mechanical seal for realizing zero leakage and non-contact |
| CN103671928A (en) * | 2012-12-27 | 2014-03-26 | 辽宁天泽产业集团机械制造有限公司 | Silicon carbide friction pair used for non-contact mechanical seal and manufacturing method thereof |
-
2014
- 2014-06-11 CN CN201410255755.6A patent/CN103982662A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110024987A1 (en) * | 2009-07-31 | 2011-02-03 | Sputtering Components, Inc. | Mechanical seal assembly for a rotatable shaft |
| CN102927282A (en) * | 2012-11-12 | 2013-02-13 | 西华大学 | Mechanical sealing device provided with depth-keeping ratio step groove end face sealing rings |
| CN103671928A (en) * | 2012-12-27 | 2014-03-26 | 辽宁天泽产业集团机械制造有限公司 | Silicon carbide friction pair used for non-contact mechanical seal and manufacturing method thereof |
| CN103090006A (en) * | 2013-02-04 | 2013-05-08 | 北京理工大学 | Spiral groove rotary sealing ring with cone-shaped cross section and used on vehicle |
| CN203413119U (en) * | 2013-02-26 | 2014-01-29 | 浙江工业大学 | Sharkskin imitation streamline groove end face mechanical sealing structure |
| CN203335870U (en) * | 2013-05-28 | 2013-12-11 | 南京林业大学 | Self-pumping fluid-dynamic-pressure-type mechanical seal |
| CN103527792A (en) * | 2013-11-06 | 2014-01-22 | 南京林业大学 | Rotating seal ring with upstream pumping mechanical seal and end face type grooves thereof |
| CN103557334A (en) * | 2013-11-14 | 2014-02-05 | 江苏大学 | Multiple-end face combined type mechanical seal for realizing zero leakage and non-contact |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104728448A (en) * | 2015-02-11 | 2015-06-24 | 湖州宜可欧环保科技有限公司 | Sealing mechanism preventing gas exchange |
| CN106015081A (en) * | 2016-06-30 | 2016-10-12 | 温州市康而达实业有限公司 | Fan-shaped air power separation type sealing ring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140813 |