CN203098368U - Sanitary pump used silicon carbide mechanical sealing device - Google Patents
Sanitary pump used silicon carbide mechanical sealing device Download PDFInfo
- Publication number
- CN203098368U CN203098368U CN 201320138782 CN201320138782U CN203098368U CN 203098368 U CN203098368 U CN 203098368U CN 201320138782 CN201320138782 CN 201320138782 CN 201320138782 U CN201320138782 U CN 201320138782U CN 203098368 U CN203098368 U CN 203098368U
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- CN
- China
- Prior art keywords
- sealing
- ring
- silicon carbide
- axle sleeve
- rotating
- 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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Abstract
The utility model discloses a sanitary pump used silicon carbide mechanical sealing device which comprises a pressing cover (2) fixed with a pump body (1), a rotating ring seat (4) sleeved with the shaft sleeve (3), a sealing rotating ring (5) tightly equipped on the rotating ring seat (4), a sealing static ring (6) sleeved with the shaft sleeve (3) and being spaced on the pressing cover (2) circumferentially, and a pressing spring (6) arranged between the rotating seat (4) and the shaft sleeve (3); the sealing rotating ring (5) is pressed and matched with the sealing static ring (7) through the pressing spring, the device is characterized in that a sealing part (8) used for preventing dust and compensation is arranged between the outer end part of the rotating seat (4) and the shaft sleeve (3). As the sanitary pump adopts the silicon carbide mechanical seal device, the sanitary effect can be guaranteed and the sealing effect is good.
Description
Technical field
The utility model relates to a kind of mechanical seal device, specifically is a kind of sanitary pump silicon carbide mechanical seal device.
Background technique
Because the health mechanical seal for pump is very high to hygienic requirements, not only requires liquid medium is sealed, and will guarantee that dust is difficult for entering, and guarantees the safe and sanitary of food.Sanitary pump all is provided with mechanical seal device, the gland that this mechanical seal device comprises and the pump housing is fixing, socket and circumferentially spacing on axle sleeve rotating seat, close-fitting the sealing rotating ring on the rotating seat, be socketed on the axle sleeve and circumferentially spacing on gland stationary seal ring, be located at the holddown spring between sealing seat and the axle sleeve; Described sealing rotating ring is force-fitted on the stationary seal ring through holddown spring.Sealing rotating ring in this structure rotates along with the rotation of pump shaft, and stationary seal ring forms the sealing flour milling with the sealing rotating ring and realizes pump inside and extraneous mechanical seal.
There is following shortcoming in the sanitary pump of above prior art with the silicon carbide mechanical seal device: at present since rotating seat and axle sleeve seal by O type circle; during work; still the medium that has to a certain degree enters in the space of rotating seat and axle sleeve; bacterium very easily grows at O type circle place like this; when pump shuts down a period of time; medium forms particle or crystalline solid easily, causes food unhygienic.Particularly use for a long time, cause rotating ring can not be under the elastic force effect automatic axial motion compensation, rotating ring can not be close to stationary ring, poor reliability, thereby whole mechanical seal was lost efficacy.
The model utility content
The technical problems to be solved in the utility model is that a kind of sanitary pump silicon carbide mechanical seal device that can guarantee hygiene effect, good sealing effect is provided.
The technical solution of the utility model is, a kind of sanitary pump mechanical seal device with following structure is provided, comprise and gland that the pump housing is fixing, be socketed in rotating seat on the axle sleeve, close-fitting the sealing rotating ring on the rotating seat, be socketed on the axle sleeve and circumferentially spacing on gland stationary seal ring, be located at the holddown spring between rotating seat and the axle sleeve; Described sealing rotating ring is force-fitted on the stationary seal ring through holddown spring, is provided with between the outer end of described rotating seat and the axle sleeve to be used for Sealing dustproof and compensation usefulness.
Described Sealing comprises flexible lip ring body, and the inwall of described seal body is provided with the inside projection of annular radial, and the outer wall of described seal body also is provided with radial convex loop.
After adopting said structure; the utility model compared with prior art; have the following advantages: be used for Sealing dustproof and compensation usefulness owing to be provided with between the outer end of described rotating seat and the axle sleeve; described Sealing comprises flexible lip ring body; the inwall of described seal body is provided with the inside projection of annular radial; after the installation; can make bulging deformation and be close on the axle sleeve all the time; can prevent fully that medium from entering in the space of rotating seat and axle sleeve; avoid bacterium to grow at O type circle place; also can prevent to form particle or crystalline solid, guarantee food sanitation.The long-term use, cause rotating ring also can be under the elastic force effect automatic axial motion compensation, rotating ring is close to stationary ring all the time, good reliability, thereby guarantee whole mechanical seal effect.
Description of drawings
Accompanying drawing 1 is the structural representation of sanitary pump of the present utility model with the silicon carbide mechanical seal device.
Accompanying drawing 2 is structural representations of Sealing.
Shown in the figure, 1, the pump housing, 2, gland, 3, axle sleeve, 3.1, radial groove, 4, rotating seat, 4.1, radial projection, 5, the sealing rotating ring, 6, holddown spring, 7, stationary seal ring, 8, Sealing, 8.1, projection.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1 and Figure 2, sanitary pump of the present utility model silicon carbide mechanical seal device, comprise and gland 2 that the pump housing 1 is fixing, be socketed in rotating seat 4 on the axle sleeve 3, close-fitting the sealing rotating ring 5 on the rotating seat 4, be socketed on the axle sleeve 3 and circumferentially spacing on gland 2 stationary seal ring 6, be located at the holddown spring 6 between rotating seat 4 and the axle sleeve 3; Described sealing rotating ring 5 is force-fitted on the stationary seal ring 7 through holddown spring 6, is provided with between the outer end of described rotating seat 4 and the axle sleeve 3 to be used for Sealing 8 dustproof and compensation usefulness.
Described Sealing 8 comprises flexible lip ring body, the inwall of described seal body is provided with the inside projection of annular radial 8.1, the outer wall of described seal body also is provided with radial convex loop, this radial convex loop can be embedded in the groove of rotating seat 4, can play the effect of axial limiting to Sealing 8.
Claims (2)
1. sanitary pump silicon carbide mechanical seal device, comprise and gland (2) that the pump housing (1) is fixing, be socketed in rotating seat (4) on the axle sleeve (3), close-fitting at the sealing rotating ring (5) on the rotating seat (4), be socketed in that axle sleeve (3) is gone up and circumferentially spacing on gland (2) stationary seal ring (6), be located at the holddown spring (6) between rotating seat (4) and the axle sleeve (3); Described sealing rotating ring (5) is force-fitted on the stationary seal ring (7) through holddown spring (6), it is characterized in that: be provided with between the outer end of described rotating seat (4) and the axle sleeve (3) and be used for Sealing (8) dustproof and compensation usefulness.
2. sanitary pump silicon carbide mechanical seal device according to claim 1, it is characterized in that: described Sealing (8) comprises flexible lip ring body, the inwall of described seal body is provided with the inside projection of annular radial (8.1), and the outer wall of described seal body also is provided with radial convex loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320138782 CN203098368U (en) | 2013-03-25 | 2013-03-25 | Sanitary pump used silicon carbide mechanical sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320138782 CN203098368U (en) | 2013-03-25 | 2013-03-25 | Sanitary pump used silicon carbide mechanical sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203098368U true CN203098368U (en) | 2013-07-31 |
Family
ID=48849776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320138782 Expired - Lifetime CN203098368U (en) | 2013-03-25 | 2013-03-25 | Sanitary pump used silicon carbide mechanical sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203098368U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106321847A (en) * | 2015-06-16 | 2017-01-11 | 中国石油化工股份有限公司 | Mechanical sealing device |
-
2013
- 2013-03-25 CN CN 201320138782 patent/CN203098368U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106321847A (en) * | 2015-06-16 | 2017-01-11 | 中国石油化工股份有限公司 | Mechanical sealing device |
| CN106321847B (en) * | 2015-06-16 | 2018-07-20 | 中国石油化工股份有限公司 | Mechanically-sealing apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 315104 Jin Yuan Road, Yinzhou investment and business center, Zhejiang, Ningbo, China, No. 666 Patentee after: NINGBO VULCAN CERAMIC TECHNOLOGY CO.,LTD. Address before: 315104 Jin Yuan Road, Yinzhou investment and business center, Zhejiang, Ningbo, China, No. 666 Patentee before: NINGBO VULCAN MECHANICAL SEALS MANUFACTURING Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 315104 Jin Yuan Road, Yinzhou investment and entrepreneurship center, Ningbo, Zhejiang 666 Patentee after: NINGBO VULCAN TECHNOLOGY Co.,Ltd. Address before: 315104 Jin Yuan Road, Yinzhou investment and entrepreneurship center, Ningbo, Zhejiang 666 Patentee before: NINGBO VULCAN CERAMIC TECHNOLOGY CO.,LTD. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130731 |