CN201193703Y - Mechanical sealing device - Google Patents
Mechanical sealing device Download PDFInfo
- Publication number
- CN201193703Y CN201193703Y CNU2008200876237U CN200820087623U CN201193703Y CN 201193703 Y CN201193703 Y CN 201193703Y CN U2008200876237 U CNU2008200876237 U CN U2008200876237U CN 200820087623 U CN200820087623 U CN 200820087623U CN 201193703 Y CN201193703 Y CN 201193703Y
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- CN
- China
- Prior art keywords
- spring
- drive sleeve
- ring
- rotating ring
- axle
- 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 - Fee Related
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- Mechanical Sealing (AREA)
- Sealing Devices (AREA)
Abstract
The utility model discloses a mechanical sealing device which comprises a static ring component tightly matched with a pump, a dynamic ring component tightly matched with a shaft (12) and a spring (11); the dynamic ring component is tightly jointed with the static ring component by the spring (11); the dynamic ring component comprises a transmission bushing (5) tightly matched with the shaft (12) and a dynamic ring (1) connected with the transmission bushing (5); the dynamic ring (1) is tightly matched with the shaft (12) by a wedge-shaped sealing ring compressed by the spring (11). After the structure is adopted, the wedge-shaped sealing ring substitutes the prior V-shaped sealing ring, i.e. the joint surface of the dynamic ring and the sealing ring is inclined, which not only reduces the structure size of the whole mechanical sealing device, but also improves the strength and the pressure bearing capability of the sealing ring.
Description
Technical field
The utility model relates to a kind of mechanical seal device of conventional machinery equipment, specifically be a kind of be applicable to petroleum product, chemical industry preparation, in the pump of acids medium of weak corrosion and the mechanical seal device in the machinery.
Background technique
Along with the progress of China's industrial technology, fluid supply apparatus just develops towards maximization, energy-conservationization, diversified direction, therefore mechanical seal has been had numerous requirement and exquisite, and the existing mechanical sealing mainly contains two kinds, and a kind of is built-in type, and a kind of is external mounted.Wherein, usually use at present and mainly contain internally mounted mechanical seal, being arranged at the outer rotating ring of running shaft in its structure seals with its relative seal face with stationary ring, wherein rotating ring is connected with running shaft and can rotates synchronously through locking structure, be provided with the sealing compensation structure of the state type that comprises spring and respective springs seat at the stationary ring tail end, stationary ring is axially to run through the end cap exterior edge face, its seal face is positioned at the end cap inboard, tail end is stretched in the end cap outside outward, makes Elastic Contact with the spring of the sealing compensation structure that is arranged in the end cap outside.Because what the sealing on the rotating ring was generally used at present is the V-type circle, there is following shortcoming in it: the structures shape of V-type circle self its radial dimension bigger, this just requires the size of its relevant part also big, thereby the physical dimension of whole mechanical seal device is just bigger, so cost is just high.And the intensity of V-type circle and bearing capacity are also lower.
The model utility content
Technical problem to be solved in the utility model is that a kind of mechanical seal device that can reduce manufacture cost, can improve seal ring intensity and bearing capacity is provided.
For solving the problems of the technologies described above, a kind of mechanical seal device that the utility model provides, comprise with the friction tight static components of the pump housing, with axle a friction tight moving ring assembly, spring, described moving ring assembly fits tightly by spring and static components, described moving ring assembly comprises and the friction tight drive sleeve of axle, the rotating ring that is connected with drive sleeve, described rotating ring pass through by the wedge-type seal circle of spring compression and an axle drive fit.
After adopting above structure, owing to replaced original V-shaped seal ring with the wedge-type seal circle, the mating face that is rotating ring and seal ring is the inclined-plane, has therefore not only reduced the physical dimension of whole mechanical seal device, has also improved the intensity and the bearing capacity of seal ring simultaneously.
Described spring is positioned at the spring eye of drive sleeve, and an end of spring is pressed in the spring eye bottom surface, and the other end is close to the throw-out collar of being close to wedge-type seal circle end face.After adopting this structure, structure is simpler, installs more convenient.
As improvement, described rotating ring is connected with drive sleeve, is meant on the periphery of rotating ring flutedly, and drive sleeve is provided with the lug with groove fit, and also is provided with step on the rotating ring, is embedded with collar on the drive sleeve, and described collar is positioned at rotating ring step surface front.After adopting this structure, can link together rotating ring and drive sleeve better, rotating ring can be rotated synchronously with drive sleeve, can from drive sleeve, not drop out again.
As further improvement, a described drive sleeve and an axle drive fit are meant that drive sleeve is through marking closely screw and spool fixedlying connected.After adopting this structure, can link together drive sleeve and axle better.
Description of drawings
Shown in the drawings is the sectional structure schematic representation of the utility model mechanical seal device.
Wherein, 1, rotating ring; 2, groove; 3, lug; 4, Cock screw; 5, drive sleeve; 6, collar; 7, step surface; 8, step; 9, wedge-type seal circle; 10, throw-out collar; 11, spring; 12, axle.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is done explanation in further detail.
By the structural representation of the utility model mechanical seal device shown in the drawings as can be known, the utility model mechanical seal device, comprise with the friction tight static components of the pump housing, with axle 12 friction tight moving ring assemblies, spring 11, described moving ring assembly fits tightly by spring 11 and static components, described moving ring assembly comprises and axle 12 friction tight drive sleeve 5, the rotating ring 1 that is connected with drive sleeve 5, the wedge-type seal circle 9 and axle 12 drive fits of described rotating ring 1 by being compressed by spring 11.
During use, on stationary ring, the excircle dimension of stationary ring O type circle becomes interference fit greater than the size that is mated on the pump housing stationary ring O type snare, and stop pin inserts in the locking groove of stationary ring after passing pin-and-hole on the pump housing, like this stationary ring just with pump housing drive fit.During the assembling moving ring assembly, earlier spring 11 is put into the spring eye of drive sleeve 5, in the mesopore of drive sleeve 5, be inserted in throw-out collar 10, wedge-type seal circle 9 more successively, the end that rotating ring 1 is had a step 8 is put into drive sleeve 5 then, the lug 3 of drive sleeve 5 is stuck in the groove 2 of rotating ring 1, then elastic collar 6 is snapped in the draw-in groove on the drive sleeve 5, at last moving ring assembly is enclosed within a predeterminated position on spools 12 after, tighten with Cock screw 4, moving ring assembly is a tight fit in axle 12.Like this, rotating ring 1 obtains end thrust under the effect of the spring force of spring 11, the end face of its end face and stationary ring is fitted tightly, and constitutes the rotation cooperation of sliding, thereby reaches the effect of mechanical seal.
Claims (4)
1. mechanical seal device, comprise with the friction tight static components of the pump housing, with axle (12) friction tight moving ring assembly, spring (11), described moving ring assembly fits tightly by spring (11) and static components, it is characterized in that: described moving ring assembly comprises and axle (12) friction tight drive sleeve (5), the rotating ring (1) that is connected with drive sleeve (5), the wedge-type seal circle (9) and axle (12) drive fit of described rotating ring (1) by being compressed by spring (11).
2. mechanical seal device according to claim 1, it is characterized in that: described spring (11) is positioned at the spring eye of drive sleeve (5), one end of spring (11) is pressed in the spring eye bottom surface, and the other end is close to the throw-out collar (10) of being close to wedge-type seal circle (9) end face.
3. mechanical seal device according to claim 1, it is characterized in that: described rotating ring (1) is connected with drive sleeve (5), be meant on the periphery of rotating ring (1) fluted (2), drive sleeve (5) is provided with the lug (3) that cooperates with groove (2), and also be provided with step (8) on the rotating ring (1), be embedded with collar (6) on the drive sleeve (5), described collar (6) is positioned at rotating ring (1) step surface (7) front.
4. mechanical seal device according to claim 1 is characterized in that: described drive sleeve (5) and axle (12) drive fit are meant that drive sleeve (5) fixedlys connected with spool (12) through marking closely screw (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200876237U CN201193703Y (en) | 2008-05-20 | 2008-05-20 | Mechanical sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200876237U CN201193703Y (en) | 2008-05-20 | 2008-05-20 | Mechanical sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201193703Y true CN201193703Y (en) | 2009-02-11 |
Family
ID=40393238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200876237U Expired - Fee Related CN201193703Y (en) | 2008-05-20 | 2008-05-20 | Mechanical sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201193703Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010031164A1 (en) * | 2008-09-19 | 2010-03-25 | Engineering Design Resources Ltd. | Rotary seal assembly including a seal ramp in contact with a seal element |
| CN102128266A (en) * | 2011-03-18 | 2011-07-20 | 华南理工大学 | Mechanical swivel joint seal device |
| CN102644752A (en) * | 2012-04-28 | 2012-08-22 | 大连华阳光大密封有限公司 | Common drive sleeve for mechanical seal |
| CN102748321A (en) * | 2012-07-19 | 2012-10-24 | 上海德宝密封件有限公司 | High-reliability bidirectional axial sealing device applicable for trash pump and having |
| CN103216441A (en) * | 2013-04-12 | 2013-07-24 | 浙江精诚模具机械有限公司 | Gear metering pump |
| CN103998834A (en) * | 2012-10-03 | 2014-08-20 | Nok株式会社 | Sealing device |
| CN105402412A (en) * | 2015-12-30 | 2016-03-16 | 鞍山森远路桥股份有限公司 | Detachable type sealing ring assembly applied to rotating shaft |
| CN108843790A (en) * | 2018-07-13 | 2018-11-20 | 侯玉琼 | A kind of Mechanical seal |
| CN109163513A (en) * | 2018-09-17 | 2019-01-08 | 李亿明 | A kind of air-dried room of ceramic packing |
| CN109357094A (en) * | 2018-11-22 | 2019-02-19 | 中国电子科技集团公司第三十八研究所 | A kind of trailing type coolant liquid conveying device |
-
2008
- 2008-05-20 CN CNU2008200876237U patent/CN201193703Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010031164A1 (en) * | 2008-09-19 | 2010-03-25 | Engineering Design Resources Ltd. | Rotary seal assembly including a seal ramp in contact with a seal element |
| CN102128266A (en) * | 2011-03-18 | 2011-07-20 | 华南理工大学 | Mechanical swivel joint seal device |
| CN102644752A (en) * | 2012-04-28 | 2012-08-22 | 大连华阳光大密封有限公司 | Common drive sleeve for mechanical seal |
| CN102748321A (en) * | 2012-07-19 | 2012-10-24 | 上海德宝密封件有限公司 | High-reliability bidirectional axial sealing device applicable for trash pump and having |
| CN103998834A (en) * | 2012-10-03 | 2014-08-20 | Nok株式会社 | Sealing device |
| CN103216441A (en) * | 2013-04-12 | 2013-07-24 | 浙江精诚模具机械有限公司 | Gear metering pump |
| CN103216441B (en) * | 2013-04-12 | 2015-08-26 | 浙江精诚模具机械有限公司 | Gear wheel metering pump |
| CN105402412A (en) * | 2015-12-30 | 2016-03-16 | 鞍山森远路桥股份有限公司 | Detachable type sealing ring assembly applied to rotating shaft |
| CN108843790A (en) * | 2018-07-13 | 2018-11-20 | 侯玉琼 | A kind of Mechanical seal |
| CN109163513A (en) * | 2018-09-17 | 2019-01-08 | 李亿明 | A kind of air-dried room of ceramic packing |
| CN109357094A (en) * | 2018-11-22 | 2019-02-19 | 中国电子科技集团公司第三十八研究所 | A kind of trailing type coolant liquid conveying device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090211 Termination date: 20140520 |