CN201401323Y - Pump body machine seal of birotor rotary displacement pump - Google Patents
Pump body machine seal of birotor rotary displacement pump Download PDFInfo
- Publication number
- CN201401323Y CN201401323Y CN2009201187861U CN200920118786U CN201401323Y CN 201401323 Y CN201401323 Y CN 201401323Y CN 2009201187861 U CN2009201187861 U CN 2009201187861U CN 200920118786 U CN200920118786 U CN 200920118786U CN 201401323 Y CN201401323 Y CN 201401323Y
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- Prior art keywords
- ring
- seat
- rotating
- stationary ring
- stationary
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- Expired - Fee Related
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Abstract
The utility model discloses a pump body machine seal of birotor rotary displacement pump. The pump body machine seal of birotor rotary displacement pump comprises a stationary ring seat, a rotating ring seat, a stationary ring and a rotating ring, wherein the stationary ring seat is fixedly connected with a pump body, the end surface of the stationary ring and the end surface of the rotating ringare mutually clung, a rotating ring sealing device is arranged on the rotating ring seat, a stationary ring sealing device is arranged on the stationary ring seat, the pump body machine seal is characterized in that the rotating ring sealing device comprises a first O-shaped ring, a first shim, a second O-shaped ring and a second shim which are distributed and arranged between the rotating ring seat and a rotation shaft in turn, the pump body machine seal has the advantages that the pump body machine seal can play a role of double layer sealing, after one O-shaped ring is deformed, the other O-shaped ring can be further used for sealing, the sealing device of the structure further has the function of cushioning pressure, the first O-shaped ring is used to baffle a part of pressure, the pressure applied on the second O-shaped ring can be reduced, thereby the second O-shaped ring can not be deformed easily, the sealing effect can be effectively improved, and the service life can be prolonged.
Description
Technical field
The utility model relates to a kind of dual rotor rotary type displacement pump, especially relates to a kind of pump housing machine envelope of dual rotor rotary type displacement pump.
Background technique
Existing dual rotor rotary type displacement pump is widely used in industries such as chemical industry, metallurgy, papermaking, food and pharmacy at present, be particularly suitable for thick high concentration medium, Korrosionsmedium and do not allow the medium of pollution, as Lubricants, chocolate mass and paper pulp etc.Existing dual rotor rotary type displacement pump mainly is made of the power equipment and the pump housing that is provided with two rotors, power equipment is connected with rotor in the pump housing by rotating shaft, and the pump housing is provided with a machine envelope seat, and machine envelope seat is provided with a machine envelope that seals between the rotating shaft and the pump housing.But in the process of displacement pump running, because the material in the pump housing has certain pressure, cause the distortion of the seal ring in the machine envelope easily, working time one, length will influence the sealing effect of machine envelope.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of pump housing machine envelope that can keep the dual rotor rotary type displacement pump of better seal effect in long working time.
The utility model solves the problems of the technologies described above the technological scheme that is adopted: a kind of pump housing machine envelope of dual rotor rotary type displacement pump, comprise stationary seat, rotating seat, stationary ring and rotating ring, described stationary seat is fixedlyed connected with the pump housing, the end face of described stationary ring and the end face of described rotating ring are close to mutually, described rotating seat is provided with the rotating ring seal arrangement, described stationary seat is provided with the stationary ring seal arrangement, and described rotating ring seal arrangement is by being arranged in order the O shape circle that is arranged between described rotating seat and the rotating shaft, first pad, the 2nd O shape circle and second pad are formed.
Be coaxially arranged with stationary ring edge cover in the described stationary seat, described stationary ring is fixed on described stationary ring edge and puts, described stationary ring edge cover interconnects by locating stud with described stationary seat, and described stationary ring seal arrangement is arranged between described stationary seat and the described stationary ring edge cover.
Described stationary ring seal arrangement comprises the 3rd O shape circle and the 4th O shape circle, is provided with the 3rd pad between described the 3rd O shape circle and described the 4th O shape circle.
Compared with prior art, advantage of the present utility model is that enclose and second pad is formed by the O shape circle, first pad, the 2nd O shape that are arranged between rotating seat and the rotating shaft by being arranged in order for the rotating ring seal arrangement, can play the effect of double-layer seal, after a seal ring distortion, also have another seal ring to seal; And the seal arrangement of this structure also has the effect of compensator or trimmer pressure, stopped pressure partly by O shape circle, just can reduce the pressure that being applied on the 2nd O shape circle, made the 2nd O shape circle not yielding, can improve sealing effect effectively, increase working life.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
As shown in the figure, a kind of pump housing machine envelope of dual rotor rotary type displacement pump, the stationary seat 1 that comprises coaxial setting, rotating seat 2, stationary ring 3, stationary ring edge cover 4 and rotating ring 5, stationary ring 3 is fixed on the stationary ring edge cover 4, stationary ring edge cover 4 interconnects by locating stud 6 with stationary seat 1, stationary seat 1 is fixedlyed connected with the pump housing 100, the end face of the end face of stationary ring 3 and rotating ring 5 is close to mutually, be arranged in order between rotating seat 2 and the rotating shaft 200 and be provided with O shape circle 7, first pad 8, the 2nd O shape circle 9 and second pad 10, be provided with between stationary seat 1 and the stationary ring edge cover 4 between the 3rd O shape circle the 11 and the 4th O shape circle 12, the three O shapes circle the 11 and the 4th O shape circle 12 and be provided with the 3rd pad 13.
Claims (3)
1, a kind of pump housing machine of dual rotor rotary type displacement pump envelope, comprise stationary seat, rotating seat, stationary ring and rotating ring, described stationary seat is fixedlyed connected with the pump housing, the end face of described stationary ring and the end face of described rotating ring are close to mutually, described rotating seat is provided with the rotating ring seal arrangement, described stationary seat is provided with the stationary ring seal arrangement, it is characterized in that enclose and second pad is formed by the O shape circle, first pad, the 2nd O shape that are arranged between described rotating seat and the rotating shaft by being arranged in order for described rotating ring seal arrangement.
2, the pump housing machine of a kind of dual rotor rotary type displacement pump as claimed in claim 1 envelope, it is characterized in that being coaxially arranged with in the described stationary seat stationary ring edge cover, described stationary ring is fixed on described stationary ring edge and puts, described stationary ring edge cover interconnects by locating stud with described stationary seat, and described stationary ring seal arrangement is arranged between described stationary seat and the described stationary ring edge cover.
3, the pump housing machine as claim 1 and 2 described a kind of dual rotor rotary type displacement pumps seals, it is characterized in that described stationary ring seal arrangement comprises the 3rd O shape circle and the 4th O shape circle, is provided with the 3rd pad between described the 3rd O shape circle and described the 4th O shape circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201187861U CN201401323Y (en) | 2009-04-29 | 2009-04-29 | Pump body machine seal of birotor rotary displacement pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201187861U CN201401323Y (en) | 2009-04-29 | 2009-04-29 | Pump body machine seal of birotor rotary displacement pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201401323Y true CN201401323Y (en) | 2010-02-10 |
Family
ID=41661123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201187861U Expired - Fee Related CN201401323Y (en) | 2009-04-29 | 2009-04-29 | Pump body machine seal of birotor rotary displacement pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201401323Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101858437A (en) * | 2010-06-29 | 2010-10-13 | 蓝星化工有限责任公司 | Rotary ring labyrinth sealing device |
| CN106286291A (en) * | 2016-10-21 | 2017-01-04 | 宁波邦威泵业有限公司 | Impeller pump shaft sealer |
| CN106286290A (en) * | 2016-10-21 | 2017-01-04 | 宁波邦威泵业有限公司 | The shaft sealer of impeller pump |
-
2009
- 2009-04-29 CN CN2009201187861U patent/CN201401323Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101858437A (en) * | 2010-06-29 | 2010-10-13 | 蓝星化工有限责任公司 | Rotary ring labyrinth sealing device |
| CN101858437B (en) * | 2010-06-29 | 2012-08-22 | 蓝星化工有限责任公司 | Rotary ring labyrinth sealing device |
| CN106286291A (en) * | 2016-10-21 | 2017-01-04 | 宁波邦威泵业有限公司 | Impeller pump shaft sealer |
| CN106286290A (en) * | 2016-10-21 | 2017-01-04 | 宁波邦威泵业有限公司 | The shaft sealer of impeller 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: 20100210 Termination date: 20120429 |