CN204083241U - Mechanical seal device - Google Patents
Mechanical seal device Download PDFInfo
- Publication number
- CN204083241U CN204083241U CN201420535770.1U CN201420535770U CN204083241U CN 204083241 U CN204083241 U CN 204083241U CN 201420535770 U CN201420535770 U CN 201420535770U CN 204083241 U CN204083241 U CN 204083241U
- Authority
- CN
- China
- Prior art keywords
- cavity
- stationary
- mechanical seal
- seal device
- ring
- 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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- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model discloses a kind of mechanical seal device, improve sealability.It comprises main shaft and is sleeved on the axle sleeve on this main shaft, and described sleeve outer surface is set with rotating seat, and this rotating seat is provided with rotating ring; Described axle sleeve has stationary seat by bearing fit, this stationary seat is provided with the stationary ring with rotating ring snug fit, this cooperation place is provided with concavo-convex snap-in structure, and this concavo-convex snap-in structure comprises the projection be arranged on stationary ring and the cavity be arranged on rotating ring; Protruding end face and the bottom surface snug fit of cavity, protruding side does not contact with the side of cavity.Mechanical seal device of the present utility model forms the use of concavo-convex snap-in structure by protruding and cavity, forms labyrinth state, improves sealability.
Description
Technical field
The utility model relates to mechanical seal field, and especially a kind of structure is simple, the mechanical seal device of raising sealability.
Background technique
Along with developing rapidly of industry, the performance specification of field working conditions to pump etc. is more and more higher.Be the plane contact of direct between rotating ring and stationary ring in existing most of mechanical seal, once occur surprisingly making rotating ring temporarily can not contact with the surface of contact of stationary ring, will cause and seal unsuccessfully, cause the serious consequences such as mechanical failure.
Model utility content
In order to overcome above-mentioned existing technological deficiency, the purpose of this utility model is: provide the mechanical seal device that a kind of structure is simple, improve sealability.
In order to achieve the above object, the utility model is achieved through the following technical solutions: mechanical seal device, and comprise main shaft and be sleeved on the axle sleeve on this main shaft, described sleeve outer surface is set with rotating seat, and this rotating seat is provided with rotating ring; Described axle sleeve has stationary seat by bearing fit, this stationary seat is provided with the stationary ring with rotating ring snug fit, this cooperation place is provided with concavo-convex snap-in structure, and this concavo-convex snap-in structure comprises the projection be arranged on stationary ring and the cavity be arranged on rotating ring; Protruding end face and the bottom surface snug fit of cavity, protruding side does not contact with the side of cavity.
The stepped shaft that described projection becomes length to increase gradually along stationary ring radial direction is arranged, the degree of depth of described cavity adapts with it.
The side of described projection and the side of cavity are all sprayed with wear-resisting enamelled coating.
The bottom surface moment that described stationary seat is provided with the cavity on the end face of the projection made on stationary ring and rotating ring keeps the spring be adjacent to.
Coordinated by flat key between described main shaft and axle sleeve.
The beneficial effects of the utility model are: mechanical seal device of the present utility model forms the use of concavo-convex snap-in structure by protruding and cavity, form labyrinth state, improve sealability.The stepped shaft becoming length to increase gradually along stationary ring radial direction due to described projection is arranged, the degree of depth of described cavity adapts with it, and layout progress one ground of stairstepping improves sealability.Because the side of described projection and the side of cavity are all sprayed with wear-resisting enamelled coating, the side of protruding side and cavity is prevented surprisingly to wear and tear.Because the bottom surface moment being provided with the cavity on the end face of the projection made on stationary ring and rotating ring on described stationary seat keeps the spring that is adjacent to, further increasing sealability.Owing to being coordinated by flat key between described main shaft and axle sleeve, improve mechanical stability.
Accompanying drawing explanation
Fig. 1 is the structural representation of mechanical seal device of the present utility model;
Fig. 2 is the enlarged diagram at m place in Fig. 1;
In figure, 1-main shaft, 2-axle sleeve, 3-rotating seat, 4-rotating ring, 5-stationary seat, 6-stationary ring, 7-spring, 8-rubber seal, 9-flat key, 10-cavity, 11-protruding, 12-wear-resisting enamelled coating.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described, but protection domain of the present utility model is not limited to the following stated.
As shown in Figure 1 and Figure 2, mechanical seal device of the present utility model, the axle sleeve 2 comprising main shaft 1 and be sleeved on this main shaft, described axle sleeve 2 outer surface is set with rotating seat 3, and this rotating seat 3 is provided with rotating ring 4; Described axle sleeve 2 has stationary seat 5 by bearing fit, this stationary seat 5 is provided with the stationary ring 6 with rotating ring 4 snug fit, this cooperation place is provided with concavo-convex snap-in structure, and this concavo-convex snap-in structure comprises the projection 11 be arranged on stationary ring 6 and the cavity 10 be arranged on rotating ring 4; The protruding end face of 11 and the bottom surface snug fit of cavity 10, the side of protruding 11 does not contact with the side of cavity 10.Mechanical seal device of the present utility model forms the use of concavo-convex snap-in structure by protruding 11 and cavity 10, forms labyrinth state, improves sealability.It should be noted that as improving sealability further, between described axle sleeve 2 and rotating seat 3, between rotating seat 3 and rotating ring 4, between stationary seat 5 and stationary ring 6, being provided with rubber seal 8.
As preferably, the stepped shaft that described projection 11 becomes length to increase gradually along stationary ring 6 radial direction is arranged, the degree of depth of described cavity 10 adapts with it, and layout progress one ground of stairstepping improves sealability.
As preferably, the side of described projection 11 and the side of cavity 10 are all sprayed with wear-resisting enamelled coating 12, prevent the protruding side of 11 and the side of cavity 10 surprisingly to wear and tear, extend the working life of whole device.
As preferably, the bottom surface moment that described stationary seat 5 is provided with the cavity 10 on the end face of the projection 11 made on stationary ring 6 and rotating ring 4 keeps the spring 7 be adjacent to, and further increasing sealability.
As preferably, coordinated by flat key 9 between described main shaft 1 and axle sleeve 2, improve mechanical stability.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (5)
1. mechanical seal device, it is characterized in that: comprise main shaft (1) and be sleeved on the axle sleeve (2) on this main shaft, described axle sleeve (2) outer surface is set with rotating seat (3), and this rotating seat (3) is provided with rotating ring (4); Described axle sleeve (2) has stationary seat (5) by bearing fit, this stationary seat (5) is provided with the stationary ring (6) with rotating ring (4) snug fit, this cooperation place is provided with concavo-convex snap-in structure, and this concavo-convex snap-in structure comprises the projection (11) be arranged on stationary ring (6) and the cavity (10) be arranged on rotating ring (4); The protruding end face of (11) and the bottom surface snug fit of cavity (10), the side of protruding (11) does not contact with the side of cavity (10).
2. mechanical seal device according to claim 1, it is characterized in that: the stepped shaft that described projection (11) becomes length to increase gradually along stationary ring (6) radial direction is arranged, the degree of depth of described cavity (10) adapts with it.
3. mechanical seal device according to claim 1 and 2, is characterized in that: the side of described projection (11) and the side of cavity (10) are all sprayed with wear-resisting enamelled coating (12).
4. mechanical seal device according to claim 3, is characterized in that: the bottom surface moment being provided with the cavity (10) on the end face of the projection (11) made on stationary ring (6) and rotating ring (4) on described stationary seat (5) keeps the spring (7) be adjacent to.
5. mechanical seal device according to claim 4, is characterized in that: coordinated by flat key (9) between described main shaft (1) and axle sleeve (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420535770.1U CN204083241U (en) | 2014-09-18 | 2014-09-18 | Mechanical seal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420535770.1U CN204083241U (en) | 2014-09-18 | 2014-09-18 | Mechanical seal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204083241U true CN204083241U (en) | 2015-01-07 |
Family
ID=52175963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420535770.1U Expired - Fee Related CN204083241U (en) | 2014-09-18 | 2014-09-18 | Mechanical seal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204083241U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106763778A (en) * | 2016-12-12 | 2017-05-31 | 昆明理工大学 | A kind of upstream pumping mechanical seal ring with multiple coil groove |
| CN108547952A (en) * | 2018-05-16 | 2018-09-18 | 苏州科耐迈克低温装备科技有限公司 | Labyrinth type end face mechanical sealing device |
| CN110005818A (en) * | 2019-04-22 | 2019-07-12 | 盛瑞传动股份有限公司 | A kind of mechanically-sealing apparatus |
-
2014
- 2014-09-18 CN CN201420535770.1U patent/CN204083241U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106763778A (en) * | 2016-12-12 | 2017-05-31 | 昆明理工大学 | A kind of upstream pumping mechanical seal ring with multiple coil groove |
| CN108547952A (en) * | 2018-05-16 | 2018-09-18 | 苏州科耐迈克低温装备科技有限公司 | Labyrinth type end face mechanical sealing device |
| CN110005818A (en) * | 2019-04-22 | 2019-07-12 | 盛瑞传动股份有限公司 | A kind of mechanically-sealing apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150107 Termination date: 20190918 |