CN202520626U - Corrugated pipe mechanical seal for chemical centrifugal pump - Google Patents
Corrugated pipe mechanical seal for chemical centrifugal pump Download PDFInfo
- Publication number
- CN202520626U CN202520626U CN2012200889572U CN201220088957U CN202520626U CN 202520626 U CN202520626 U CN 202520626U CN 2012200889572 U CN2012200889572 U CN 2012200889572U CN 201220088957 U CN201220088957 U CN 201220088957U CN 202520626 U CN202520626 U CN 202520626U
- Authority
- CN
- China
- Prior art keywords
- corrugated pipe
- seat
- spring
- rubber corrugated
- stationary 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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- Mechanical Sealing (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a mechanical sealing device, which comprises a movable ring assembly and a static ring assembly, wherein the static ring assembly consists of a static ring and a static ring sleeve; the static ring assembly is in tight fit with a pump body; a movable ring is in tight fit with one end of a rubber corrugated pipe; a movable ring seat is in tight fit with one end of the rubber corrugated pipe; the other end of the rubber corrugated pipe is in tight fit with a shaft; a spring seat is in tight fit with the other end of the rubber corrugated pipe; the two end faces of the rubber corrugated pipe are close to the two end faces of the movable ring seat and the spring seat respectively; the spring is pressed against the two end faces of the movable ring seat and the spring seat; one end face of the movable ring is close to one end face of the static ring; and the circumferential surfaces of the movable ring seat and the spring seat are provided with axial bumps and axial recesses which are matched with each other. Due to the adoption of the mechanical sealing device, the rubber corrugated pipe can be effectively prevented from being fractured, and sealing is ensured.
Description
Technical field
The utility model relates to a kind of chemical centrifugal pump in fields such as oil, chemical industry, papermaking, sewage treatment that is applicable to and uses mechanical seal device, specifically is a kind of mechanical seal device that prevents that working fluid from leaking along running shaft.
Background technique
The mechanical seal device of existing technology comprises moving ring assembly of being made up of rotating ring, rubber corrugated pipe, rotating seat, spring seat and spring and the static components of being made up of stationary ring and stationary ring cover; Static components and pump housing drive fit; Rotating ring outer wall and rubber corrugated pipe lean on the inwall drive fit of stationary ring one end; The longitudinal section of described rotating seat is the step surface of band perpendicular to the end face of axle; The inwall of rotating seat and rubber corrugated pipe lean on the outer wall drive fit of stationary ring one end, and rubber corrugated pipe is a tight fit on the axle away from the inwall of stationary ring one end, and the longitudinal section of described spring seat is the step surface of band perpendicular to the end face of axle; Spring seat inwall and rubber corrugated pipe are away from the outer wall drive fit of stationary ring one end; In the middle of the described rubber corrugated pipe two perpendicular to the end face of axle respectively with rotating seat and spring seat perpendicular to two end faces of axle near, spring is against respectively on rotating seat and two end faces of spring seat perpendicular to axle, the end face that rotating ring one end face overlaps away from stationary ring at the effect of spring and stationary ring near.
There is following defective in the seal arrangement of above structure: because described rotating seat and spring seat are separated by far away; During work, rubber corrugated pipe rotates with axle, and drives rotating ring, rotating seat, spring seat rotation; So rubber corrugated pipe has been born most moment of torsion; The radial vibration of axle or axial float etc. produce the high pulling torque of moment, cause rubber corrugated pipe to tear easily, cause seal failure.。
The model utility content
The technical problem that the utility model will solve is, provides a kind of and can prevent effectively that rubber corrugated pipe from tearing and then the chemical centrifugal pump guaranteeing to seal is used mechanical seal device for rubber bellows.
The technical solution of the utility model is; Provide a kind of chemical centrifugal pump to use mechanical seal device for rubber bellows; Comprise moving ring assembly of forming by rotating ring, rubber corrugated pipe, rotating seat, spring seat and spring and the static components of forming by stationary ring and stationary ring cover; Static components and pump housing drive fit; Rotating ring outer wall and rubber corrugated pipe lean on the inwall drive fit of stationary ring one end, and the longitudinal section of described rotating seat is the step surface of band perpendicular to the end face of axle, and the inwall of rotating seat and rubber corrugated pipe lean on the outer wall drive fit of stationary ring one end; Rubber corrugated pipe is a tight fit on the axle away from the inwall of stationary ring one end; The longitudinal section of described spring seat is the step surface of band perpendicular to the end face of axle, and spring seat inwall and rubber corrugated pipe be away from the outer wall drive fit of stationary ring one end, two of described rubber corrugated pipe centre perpendicular to the end face of axle respectively with rotating seat and spring seat perpendicular to two end faces of axle near; Spring is against respectively on rotating seat and two end faces of spring seat perpendicular to axle, rotating ring one end face the effect of spring and stationary ring away from the end face of stationary ring cover near; The axial projections and the axial recess that cooperatively interact are arranged on the circumferential surface of described rotating seat and spring seat.
The utility model compared with prior art has following advantage:
Owing on the circumferential surface of described rotating seat and spring seat axial projections and the axial recess that cooperatively interacts arranged; So during work; Spring seat drives rotating seat and rotates, so spring seat and rotating seat have been born main moment of torsion, and rubber corrugated pipe is born moment of torsion hardly; So effectively avoided rubber corrugated pipe to tear, thereby guaranteed sealing.
Description of drawings
Fig. 1 is the sectional structure schematic representation of the said chemical centrifugal pump of the utility model with bellows mechanical seal.
Fig. 2 is the broken section structural representation of the said chemical centrifugal pump of the utility model with bellows mechanical seal.
1. stationary ring overlaps 8. of 2. stationary rings, 3. rotating rings, 4. rotating seats, 5. rubber corrugated pipe, 6. springs, 7. spring seats
9. the pump housing 10. axial projections 11. axial recess.
Embodiment
Like Fig. 1, shown in Figure 2; The utility model chemical centrifugal pump is used mechanical seal device for rubber bellows; Comprise moving ring assembly of forming by rotating ring 3, rubber corrugated pipe 5, rotating seat 4, spring seat 7 and spring 6 and the static components of forming by stationary ring 2 and stationary ring cover 1; Stationary ring 2 overlaps 1 drive fit with stationary ring, the outer wall of stationary ring cover 1 and the inwall drive fit of the pump housing 9, and rotating ring 3 outer walls and rubber corrugated pipe 5 lean on the inwall drive fit of stationary ring 2 one ends; The longitudinal section of described rotating seat 4 is the step surface of band perpendicular to the end face of axle 8; The inwall of rotating seat 4 and rubber corrugated pipe 5 lean on the outer wall drive fit of stationary ring 2 one ends, and rubber corrugated pipe 5 is a tight fit on the axle 8 away from the inwall of stationary ring 2 one ends, and the longitudinal section of described spring seat 7 is the step surface of band perpendicular to the end face of axle 8; Spring seat 7 inwalls and rubber corrugated pipe 5 are away from the outer wall drive fit of stationary ring 2 one ends; In the middle of the described rubber corrugated pipe 5 two are against respectively on rotating seat 4 and two end faces of spring seat 7 perpendicular to axle 8 near, spring 6 perpendicular to two end faces of axle 8 with rotating seat 4 and spring seat 7 respectively perpendicular to the end face of axle 8, rotating ring 3 one end faces overlap away from stationary ring at the effect of spring 6 and stationary ring 21 end face near; The axial projections 10 and axial recess 11 that cooperatively interacts arranged on the circumferential surface of described rotating seat 4 and spring seat 7.Described axial projections 10 and axial recess 11 be shaped as rectangular.Rotating seat 4 is provided with axial recess 11, and spring seat 7 is provided with axial projections l0.
More than show and described the advantage of basic principle, major character and the wooden model utility of the utility model.The technician of the industry should understand; The new plough of this practicality is not restricted to the described embodiments; The principle of describing in the foregoing description and the specification that the utility model just is described; The utility model also has various changes and modifications under the prerequisite that does not break away from the utility model spirit and scope, and these variations and improvement all fall in the utility model scope that requires protection.The utility model requires protection domain to be defined by appending claims and equivalent thereof.
Claims (2)
1. a chemical centrifugal pump is used mechanical seal device for rubber bellows; Comprise moving ring assembly of forming by rotating ring ⑶, rubber corrugated pipe ⑸, rotating seat ⑷, spring seat ⑺ and spring ⑹ and the static components of forming by stationary ring ⑵ and stationary ring cover ⑴; Static components and pump housing ⑼ drive fit; Rotating ring ⑶ outer wall and rubber corrugated pipe ⑸ lean on the inwall drive fit of stationary ring ⑵ one end; The longitudinal section of described rotating seat ⑷ is the step surface of band perpendicular to the end face of axle ⑻; The inwall of rotating seat ⑷ and rubber corrugated pipe ⑸ lean on the outer wall drive fit of stationary ring ⑵ one end, and rubber corrugated pipe ⑸ is a tight fit on the ⑻ away from the inwall of stationary ring ⑵ one end, and the longitudinal section of described spring seat ⑺ is the step surface of band perpendicular to the end face of axle ⑻; Spring seat ⑺ inwall and rubber corrugated pipe ⑸ are away from the outer wall drive fit of stationary ring ⑵ one end; In the middle of the described rubber corrugated pipe ⑸ two perpendicular to the end face of axle ⑻ respectively with rotating seat ⑷ and spring seat ⑺ perpendicular to two end faces of axle ⑻ near, spring ⑹ is against respectively on rotating seat ⑷ and two end faces of spring seat ⑺ perpendicular to axle ⑻, rotating ring ⑶ one end face overlaps ⑴ at effect and the stationary ring ⑵ of spring ⑹ away from stationary ring end face near; It is characterized in that: the axial projections ⑽ and the axial recess ⑾ that cooperatively interact are arranged on the circumferential surface of described rotating seat ⑷ and spring seat ⑺.
2. chemical centrifugal pump according to claim 1 is used mechanical seal device for rubber bellows; It is characterized in that: the axial projections ⑽ and the axial recess ⑾ that cooperatively interact are arranged on the circumferential surface of described rotating seat ⑷ and spring seat ⑺; Refer to that rotating seat ⑷ is provided with axial recess ⑾, spring seat ⑺ is provided with axial projections ⑽.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200889572U CN202520626U (en) | 2012-03-12 | 2012-03-12 | Corrugated pipe mechanical seal for chemical centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200889572U CN202520626U (en) | 2012-03-12 | 2012-03-12 | Corrugated pipe mechanical seal for chemical centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202520626U true CN202520626U (en) | 2012-11-07 |
Family
ID=47103578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200889572U Expired - Fee Related CN202520626U (en) | 2012-03-12 | 2012-03-12 | Corrugated pipe mechanical seal for chemical centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202520626U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103148011A (en) * | 2013-03-25 | 2013-06-12 | 宁波伏尔肯机械密封件制造有限公司 | Mechanical sealing device for sanitary pump |
-
2012
- 2012-03-12 CN CN2012200889572U patent/CN202520626U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103148011A (en) * | 2013-03-25 | 2013-06-12 | 宁波伏尔肯机械密封件制造有限公司 | Mechanical sealing device for sanitary pump |
| CN103148011B (en) * | 2013-03-25 | 2015-07-22 | 宁波伏尔肯机械密封件制造有限公司 | Mechanical sealing device for sanitary pump |
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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 |
Granted publication date: 20121107 Termination date: 20150312 |
|
| EXPY | Termination of patent right or utility model |