CN103147980B - Mechanical sealing device of rotor pump - Google Patents
Mechanical sealing device of rotor pump Download PDFInfo
- Publication number
- CN103147980B CN103147980B CN201310086847.1A CN201310086847A CN103147980B CN 103147980 B CN103147980 B CN 103147980B CN 201310086847 A CN201310086847 A CN 201310086847A CN 103147980 B CN103147980 B CN 103147980B
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- China
- Prior art keywords
- seat
- rotating shaft
- rotating
- face
- spring
- Prior art date
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Links
- 238000007789 sealing Methods 0.000 title claims abstract description 13
- 238000009434 installation Methods 0.000 claims 1
- 230000003068 static effect Effects 0.000 abstract 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
Landscapes
- Mechanical Sealing (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
- Rotary Pumps (AREA)
Abstract
The invention discloses a mechanical sealing device of a rotor pump, which comprises a rotating shaft (2) arranged on a pump body (1), a sealing seat (3), a movable ring (4) arranged in a shaft hole of the pump body (1) and linked with the rotating shaft (2) in the circumferential direction, a movable ring seat (7) fixed with the movable ring (4), a static ring (5) arranged outside the rotating shaft (2), a static ring seat (8) fixed with the static ring (5) and a spring (6) arranged outside the rotating shaft (2); the device comprises a nut (9) which is screwed outside a rotating shaft (2) and one end of which is propped against the end face of a rotor; one end of the spring (6) abuts against the movable ring seat (7), the other end of the spring abuts against the nut (9), and the end face of the movable ring (4) is press-fitted on the end face of the static ring (5) through the spring (6). The device reduces the probability of failure of the whole mechanical seal, can adjust the clearance between the rotor and the pump body by adjusting the mechanical seal, and brings convenience to the assembly of the rotor pump.
Description
Technical field
The present invention relates to rotor pump technical field, is specifically a kind of mechanical seal device of rotor pump.
Background technique
Rotor pump selects different seal form according to the medium be transferred, and in general, dielectric viscosity is high, and what can solidify when temperature is low selects packing seal, other select mechanical seal.The mechanical seal device of rotor pump is arranged on the cavity position that the pump housing is stretched out in rotating shaft, and it comprises the rotating shaft be located on the pump housing, the sealing seat be fixed on pump body end surface, the rotating ring be located in the hole of the pump housing, is located at stationary ring outside rotating shaft and spring; Described rotating ring is actively socketed in rotating shaft, the inside of the sealing seat that described stationary ring circumference is spacing, described spring is located at outside rotating shaft, and one end and stationary ring offset, the interior edge face of the other end and sealing seat offsets, and the end face of described stationary ring is press-fitted on the end face of rotating ring by spring.There is following shortcoming in the mechanical seal device of this construction rotor pump above:
1, after the MEDIA FLOW owing to carrying enters the cavity between stationary seat and the pump housing, once pile up, the elastic failure of spring can be made, thus add the probability of whole mechanical seal inefficacy.
2, due to after whole mechanical seal, the axial position of rotating ring and rotating seat is fixed, when needing to regulate the gap between rotor and the pump housing, namely the gap between the end face of rotor and the interior edge face of the pump housing will be ensured, so just cannot be undertaken by regulating mechanical seal regulating the gap between rotor and the pump housing, making troubles to the assembling of rotor pump.
Summary of the invention
The technical problem to be solved in the present invention is, providing a kind of and reduces probability that whole mechanical seal lost efficacy, being undertaken regulating the gap between rotor and the pump housing, to the mechanical seal device of the rotor pump that the assembling of rotor pump brings convenience by regulating mechanical seal.
Technological scheme of the present invention is, a kind of mechanical seal device with the rotor pump of following structure is provided, comprise the rotating shaft be located on the pump housing, the sealing seat be fixed on pump body end surface, be located at the pump housing axis hole in and rotating ring link with rotating shaft circumference, the rotating seat fixed with rotating ring, the stationary ring be located at outside rotating shaft, and the stationary seat fixed of stationary ring and the spring that is located at outside rotating shaft; Described stationary seat circumference is spacing in sealing seat; It comprises the nut screwing and offset at rotating shaft outer also one end and rotor end-face; Described spring one end and rotating seat offset, and the other end and nut offset, and the end face of described rotating ring is press-fitted on the end face of stationary ring by spring.
After adopting above structure, the present invention compared with prior art, has the following advantages:
1, because spring is located between rotating seat and nut, after the medium inflow of conveying like this, can greatly reduce on the spring between inflow rotating seat and nut, reduce the possibility of the elastic failure of spring; Even if media accumulation is too much, the pressure of the medium of rotating ring side is higher, can promote rotating seat, makes the end face of rotating ring be press-fitted on the end face of stationary ring, reduces the probability that whole mechanical seal was lost efficacy.
2, owing to adding nut, nut screws and offsets at rotating shaft outer also one end and rotor end-face, make spring fitting between nut and rotating seat simultaneously, pass through adjusting nut like this, just can regulate the gap between the end face of rotor and the end face of the pump housing, adjust again without the need to dismantling whole machine envelope, bring convenience to the assembling of rotor pump.
As improvement, one end of described rotating seat is provided with step, described spring housing is outside step, avoid spring directly and shaft contacts, one end of described spring is against on the end face of step mutually, described rotating seat by Cock screw and rotating shaft circumference spacing, the length dimension that described rotating seat installs the long lumbar hole in the hole of Cock screw is greater than the external diameter of Cock screw head, such Cock screw can make rotating seat link together with rotor, also can make the axial relative movement of rotating seat.
Accompanying drawing explanation
Accompanying drawing 1 is the cross-sectional view of the mechanical seal device of rotor pump of the present invention.
As shown in the figure: 1, the pump housing, 2, rotating shaft, 3, sealing seat, 4, rotating ring, 5, stationary ring, 6, spring, 7, spring, 8, stationary seat.
Embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
As shown in Figure 1, the mechanical seal device of rotor pump of the present invention, comprise the rotating shaft 2 be located on the pump housing 1, the sealing seat 3 be fixed on the pump housing 1 end face, be located at the pump housing 1 axis hole in and the rotating ring 4 link with rotating shaft 2 circumference, the rotating seat 7 fixing with rotating ring 4, the stationary ring 5 be located at outside rotating shaft 2, the stationary seat 8 fixed with stationary ring 5 and the spring 6 be located at outside rotating shaft 2; Described stationary seat 8 circumference is spacing in sealing seat 3; It comprises the nut 9 screwing and offset at rotating shaft 2 outer also one end and rotor end-face, i.e. the outer wall of rotating shaft 2 is provided with the outside thread that can match with nut 9 internal thread.Described spring 6 one end and rotating seat 7 offset, and the other end and nut 9 offset, and the end face of described rotating ring 4 is press-fitted on the end face of stationary ring 5 by spring 6.
One end of described rotating seat 7 is provided with step, described spring 6 is enclosed within outside step, one end of described spring 6 is against on the end face of step mutually, described rotating seat 7 by Cock screw and rotating shaft 2 circumference spacing, the length dimension that described rotating seat 7 installs the long lumbar hole in the hole of Cock screw is greater than the external diameter of Cock screw head, such Cock screw can make rotating seat link together with rotor, also can make the axial relative movement of rotating seat.The outer wall of one end that described nut 9 offsets with rotor is provided with annular groove.
During assembling, if between rotor and the pump housing 1 when gapless or excesssive gap, take out rotor, then rotating nut 9, to inward turning or to outward turning, again load rotor, make there is rational gap between rotor and the pump housing 1.
Claims (1)
1. a mechanical seal device for rotor pump, comprise the rotating shaft (2) be located on the pump housing (1), the sealing seat (3) be fixed on the pump housing (1) end face, be located at the pump housing (1) axis hole in and the rotating ring (4) link with rotating shaft (2) circumference, the rotating seat (7) fixing with rotating ring (4), be located at rotating shaft (2) stationary ring outward (5), the stationary seat (8) fixed with stationary ring (5) and be located at rotating shaft (2) spring outward (6), described stationary seat (8) circumference is spacing in sealing seat (3), it is characterized in that: it comprises and screws in rotating shaft (2) and the nut (9) that offsets of one end and rotor end-face outward, described spring (6) one end and rotating seat (7) offset, the other end and nut (9) offset, the end face of described rotating ring (4) is press-fitted on the end face of stationary ring (5) by spring (6), one end of described rotating seat (7) is provided with step, described spring (6) is enclosed within outside step, one end of described spring (6) is against on the end face of step mutually, described rotating seat (7) by Cock screw and rotating shaft (2) circumference spacing, the length dimension of the long lumbar hole in the hole of described rotating seat (7) installation Cock screw is greater than the external diameter of Cock screw head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310086847.1A CN103147980B (en) | 2013-03-18 | 2013-03-18 | Mechanical sealing device of rotor pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310086847.1A CN103147980B (en) | 2013-03-18 | 2013-03-18 | Mechanical sealing device of rotor pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103147980A CN103147980A (en) | 2013-06-12 |
| CN103147980B true CN103147980B (en) | 2016-01-20 |
Family
ID=48546238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310086847.1A Active CN103147980B (en) | 2013-03-18 | 2013-03-18 | Mechanical sealing device of rotor pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103147980B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000120880A (en) * | 1998-10-16 | 2000-04-28 | Nippon Pillar Packing Co Ltd | Non-contact mechanical seal |
| CN2692380Y (en) * | 2004-04-23 | 2005-04-13 | 北京城市排水集团有限责任公司 | Three blade pump mechanical sealing device |
| CN2871921Y (en) * | 2005-10-11 | 2007-02-21 | 徐晓旭 | Wearproof gear pump |
| CN201428600Y (en) * | 2009-06-18 | 2010-03-24 | 宜兴优纳特机械有限公司 | Adjusting device for gap between end surface and end cover of Routs blower impeller |
| CN201461401U (en) * | 2009-07-09 | 2010-05-12 | 昆明醋酸纤维有限公司 | Mechanical sealing device of high-viscosity slurry gear pump |
| CN202082403U (en) * | 2011-06-02 | 2011-12-21 | 温州市天成密封件制造有限公司 | Reinforced mechanical sealing device of welded metal bellows |
| CN203081748U (en) * | 2013-03-18 | 2013-07-24 | 宁波得利时泵业有限公司 | Mechanical seal device of rotor pump |
-
2013
- 2013-03-18 CN CN201310086847.1A patent/CN103147980B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000120880A (en) * | 1998-10-16 | 2000-04-28 | Nippon Pillar Packing Co Ltd | Non-contact mechanical seal |
| CN2692380Y (en) * | 2004-04-23 | 2005-04-13 | 北京城市排水集团有限责任公司 | Three blade pump mechanical sealing device |
| CN2871921Y (en) * | 2005-10-11 | 2007-02-21 | 徐晓旭 | Wearproof gear pump |
| CN201428600Y (en) * | 2009-06-18 | 2010-03-24 | 宜兴优纳特机械有限公司 | Adjusting device for gap between end surface and end cover of Routs blower impeller |
| CN201461401U (en) * | 2009-07-09 | 2010-05-12 | 昆明醋酸纤维有限公司 | Mechanical sealing device of high-viscosity slurry gear pump |
| CN202082403U (en) * | 2011-06-02 | 2011-12-21 | 温州市天成密封件制造有限公司 | Reinforced mechanical sealing device of welded metal bellows |
| CN203081748U (en) * | 2013-03-18 | 2013-07-24 | 宁波得利时泵业有限公司 | Mechanical seal device of rotor pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103147980A (en) | 2013-06-12 |
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