CN201193704Y - Mechanical sealing device - Google Patents
Mechanical sealing device Download PDFInfo
- Publication number
- CN201193704Y CN201193704Y CNU2008200876241U CN200820087624U CN201193704Y CN 201193704 Y CN201193704 Y CN 201193704Y CN U2008200876241 U CNU2008200876241 U CN U2008200876241U CN 200820087624 U CN200820087624 U CN 200820087624U CN 201193704 Y CN201193704 Y CN 201193704Y
- Authority
- CN
- China
- Prior art keywords
- spring
- rotating ring
- drive sleeve
- axle
- mechanical seal
- 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)
Abstract
The utility model discloses a mechanical sealing device which comprises a static ring (10) tightly matched with a pump (8), a dynamic ring (3) tightly matched with a shaft (14), a transmission bushing (13) and a spring (6); the dynamic ring (3) is tightly jointed with the static ring (10) by the spring (6); the dynamic ring (3) is connected with the transmission bushing (13); the spring (6) is arranged in the transmission bushing (13); the transmission bushing (13) is tightly matched with the shaft (14); the spring (6) is a wave spring. The structure reduces the phenomenon that suspended particles in media block the spring and the spring loses effect, so as to prolong the service life of the mechanical sealing device.
Description
Technical field
The utility model relates to a kind of mechanical seal device of conventional machinery equipment, specifically is a kind ofly to be applicable to that papermaking, sugaring, sewage treatment etc. have the mechanical seal device in the machinery such as pump of fiber and high viscosity medium.
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.But internally mounted mechanical seal is mounted in the pump chamber the inside, whole mechanical seal all is immersed in the liquid the inside, because the working medium scope of chemical industry is wide at present, like this, the mechanical seal part of liquid the inside must be subjected to the restriction of chemical mediator, especially spring can block because of particles suspended in the medium, thereby causes the inefficacy of spring, therefore can shorten the working life of mechanical seal.
The model utility content
Technical problem to be solved in the utility model is that the mechanical seal device in the working life of a kind of energy prolonged mechanical sealing 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 spring is a wavy spring, and is positioned at moving ring assembly.
After adopting above structure, because used spring has adopted wavy spring, utilize the characteristics of wavy spring self, be that wavy spring is to be made of the thin slice annular resilient metallic member that some Wave crest and wave troughs constitute, there is bigger space in it, can reduce like this because of suspended particulate in the medium blocks spring and cause that the phenomenon of spring failure produces, thus the working life of prolonged mechanical seal arrangement.
As improvement, described spring is positioned at moving ring assembly, is meant that described moving ring assembly comprises and friction tight rotating ring of axle and drive sleeve that described rotating ring is connected with drive sleeve, and described spring is positioned at drive sleeve.After adopting this structure, spring is reduced contact, thereby avoid spring failure with the direct of medium, and then working life of prolonged mechanical seal arrangement further.
As further 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.After adopting this structure, can link together rotating ring and drive sleeve better.
As further improving, a described drive sleeve and an axle drive fit are meant that drive sleeve is through marking closely screw and spool fixedlying connected.Described rotating ring and axle drive fit are meant that drive fit has rotating ring O type circle in the rotating ring, described rotating ring O type circle and axle drive fit.After adopting this structure, can be better drive sleeve and rotating ring and axle be linked together, spool rotation pass to rotating ring.
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, rotating ring O type circle; 3, throw-out collar; 4, spring; 5, Cock screw; 6, groove; 7, lug; 8, drive sleeve; 9, 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 9 friction tight moving ring assemblies, spring 4, described moving ring assembly fits tightly by spring 4 and static components, it is characterized in that: described spring 4 is wavy springs, and is positioned at moving ring assembly.
Described spring 4 is positioned at moving ring assembly, is meant that described moving ring assembly comprises and axle 9 friction tight rotating ring 1 and drive sleeve 8 that described rotating ring 1 is connected with drive sleeve 8, and described spring 4 is positioned at drive sleeve 8.Described rotating ring 1 is connected with drive sleeve 8, is meant on the periphery of rotating ring 1 flutedly 6, and drive sleeve 8 is provided with the lug 7 that cooperates with groove 6.A described drive sleeve 8 and axle 9 drive fits are meant that drive sleeve 8 fixedlys connected with spools 9 through marking closely screw 5.Described rotating ring 1 and axle 9 drive fits are meant that drive fit has rotating ring O type circle 2 in the rotating ring 1, described rotating ring O type circle 2 and axle 9 drive fits.
Described stationary ring and pump housing drive fit are meant that stationary ring is with stationary ring O type circle outward, described stationary ring O type circle and pump housing interference fit; Described stationary ring is provided with locking groove, an end drive fit of the described pump housing and stop pin, and the other end of stop pin is positioned at locking groove.
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.Assembling is put into wavy spring 4 endoporus of drive sleeve 8 earlier during moving ring assembly, is pressed into throw-out collar 3, is pressed into rotating ring 1 again, and the lug 7 of drive sleeve 8 is snapped in the groove 6 on the rotating ring 1.After moving ring assembly is enclosed within the predeterminated position of axle on 9, tighten, moving ring assembly is a tight fit in axle 9 with Cock screw 5.Like this, rotating ring 1 is under the effect of the spring force of wavy spring 4, and the end face of its end face and stationary ring fits tightly, and constitutes the rotation cooperation of sliding, thereby reaches the effect of mechanical seal.
Claims (5)
1. mechanical seal device, comprise with the friction tight static components of the pump housing, with axle (9) friction tight moving ring assembly, spring (4), described moving ring assembly fits tightly by spring (4) and static components, it is characterized in that: described spring (4) is a wavy spring, and is positioned at moving ring assembly.
2. mechanical seal device according to claim 1, it is characterized in that: described spring (4) is positioned at moving ring assembly, be meant that described moving ring assembly comprises and axle (9) friction tight rotating ring (1) and drive sleeve (8), described rotating ring (1) is connected with drive sleeve (8), and described spring (4) is positioned at drive sleeve (8).
3. mechanical seal device according to claim 2 is characterized in that: described rotating ring (1) is connected with drive sleeve (8), is meant that drive sleeve (8) is provided with the lug (7) that cooperates with groove (6) on the periphery of rotating ring (1) fluted (6).
4. mechanical seal device according to claim 2 is characterized in that: described drive sleeve (8) and axle (9) drive fit are meant that drive sleeve (8) fixedlys connected with spool (9) through marking closely screw (5).
5. mechanical seal device according to claim 2 is characterized in that: described rotating ring (1) and axle (9) drive fit are meant that the interior drive fit of rotating ring (1) has rotating ring O type circle (2), described rotating ring O type circle (2) and axle (9) drive fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200876241U CN201193704Y (en) | 2008-05-20 | 2008-05-20 | Mechanical sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200876241U CN201193704Y (en) | 2008-05-20 | 2008-05-20 | Mechanical sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201193704Y true CN201193704Y (en) | 2009-02-11 |
Family
ID=40393239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200876241U Expired - Fee Related CN201193704Y (en) | 2008-05-20 | 2008-05-20 | Mechanical sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201193704Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101858342A (en) * | 2010-05-20 | 2010-10-13 | 株洲湘火炬汽车密封有限责任公司 | Full-clearance waveform spring water seal |
| CN102644750A (en) * | 2012-04-28 | 2012-08-22 | 大连华阳光大密封有限公司 | Anti-swing mechanical seal |
| CN105257586A (en) * | 2015-10-20 | 2016-01-20 | 陕西科技大学 | Mechanical sealing device for methyl alcohol pump |
-
2008
- 2008-05-20 CN CNU2008200876241U patent/CN201193704Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101858342A (en) * | 2010-05-20 | 2010-10-13 | 株洲湘火炬汽车密封有限责任公司 | Full-clearance waveform spring water seal |
| CN102644750A (en) * | 2012-04-28 | 2012-08-22 | 大连华阳光大密封有限公司 | Anti-swing mechanical seal |
| CN105257586A (en) * | 2015-10-20 | 2016-01-20 | 陕西科技大学 | Mechanical sealing device for methyl alcohol pump |
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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 |