CN102269179B - Dry friction-resisting sealing device for pump body - Google Patents
Dry friction-resisting sealing device for pump body Download PDFInfo
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- CN102269179B CN102269179B CN 201110229370 CN201110229370A CN102269179B CN 102269179 B CN102269179 B CN 102269179B CN 201110229370 CN201110229370 CN 201110229370 CN 201110229370 A CN201110229370 A CN 201110229370A CN 102269179 B CN102269179 B CN 102269179B
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Abstract
The invention discloses a dry friction-resisting sealing device for a pump body. The device comprises an impeller, a shell filled with lubricating oil, a movable ring and a static ring, wherein a convex ring is arranged on the front end face of the static ring arranged in a through hole of a sealing seat and is tightly attached to the rear end face of the movable ring; a lubricating oil channel formed on the inner wall of the static ring is communicated with a lubricating oil cavity; one end of a wave spring is pressed against the sealing seat, and the other end of the wave spring is pressed against the rear end face of the static ring to apply elastic pressure onto the static ring so as to ensure that the static ring is always tightly attached to the rear end face of the movable ring; the movable ring is arranged in a groove on the rear end face of the impeller; and a movable ring notch is clamped by a positioning pin. In the device, the liquid channel is strictly isolated from the lubricating oil cavity; and when the impeller is rotated, lubricating oil is continuously infiltrated into the contact surface between the movable ring and the static ring, so that the pump body is easy to rotate, friction force and heat productivity are greatly reduced, a sealing property is effectively kept for a long time, and the device can be continuously operated in the cut-out state.
Description
Technical field
The present invention relates to the pump field, specifically refer to dry friction-resisting sealing device for pump body.
Background technique
Impeller is the critical component that pump is used for carrying liquid, due to impeller shaft ceaselessly with seal arrangement spin friction, even be with dynamic seal apparatus again with peripheral component spin friction, at the seal arrangement place of its rotating shaft, because of friction, generate heat, the dynamic fluid of entirely carrying by impeller is taken away this heat.The pump of the thick liquids such as the pump that chemical plant is used or conveying corrosive liquid, heavy oil, mud, in course of conveying, liquid has been drained or has not been connect, if the operator does not realize, shutdown not in time, have more than is needed a few minutes, take away heat owing to having lacked working fluid, a lot of parts such as seal arrangement, impeller all can be burnt out by the heat of friction accumulation, and pump must keep in repair or renew, and this phenomenon especially bothers in the chemical plant that can not be interrupted chemical reaction.The operator obtains the aspiration phases of monitoring the pump housing constantly, and connecting lavatory all will have the relief rotation.The claimant is through concentrating on studies, and repetition test, obtained breakthrough finally, thinks and filled up a domestic blank.
Summary of the invention
The object of the invention is to overcome the defect of prior art, provide a kind of can also continuous running 24 hours and the dry friction-resisting sealing device for pump body that can not burn out at the disconnection state lower pump body, the pump housing is extended working life, has greatly alleviated operator's stress.
To achieve these goals, technological scheme of the present invention is as follows: dry friction-resisting sealing device for pump body, comprise the impeller be fixed in rotating shaft, the pump case of holding vane rotary and O RunddichtringO, characterized by further comprising: the oil pocket housing, rotating ring, stationary ring, wavy spring, anti-rotation gland, sealing seat, seal ring of moving ring, the stationary ring seal ring that fill lubricant oil;
Rotating ring is arranged in the rear end pit of impeller, and the breach on rotating ring is blocked and is forced to follow the impeller synchronous rotary by the locating stud in the impeller pit, and can not in pit, freely rotate; Overlapping seal ring of moving ring on the sidewall of rotating ring front, fitting tightly with impeller pit sidewall;
Be provided with stationary ring in the through hole of sealing seat, the front-end face of described stationary ring is provided with the ear end face that a flange collar is close to rotating ring, and the stationary ring outer wall is provided with the stationary ring seal ring, fits tightly in the groove of sealing seat; The grease channel arranged on the stationary ring inwall and lubricant reservoir are communicated with; The back segment of stationary ring has several breach, and the lug shape of anti-rotation gland and size adaptation, by lug, is stuck and does not allow the frictional force band dynamic and static ring of rotating ring rotate;
[0005]the front-end face of stationary ring is provided with a flange collar, is close to the ear end face of rotating ring, the intermediate portion of stationary ring outer wall is provided with a conical surface, liquid in the pump case of flowing through all can produce pressure to all container walls that hold it, particularly the hydraulic pressure when carrying thick liquid is larger, liquid in pump case also has this hydraulic pressure to the stationary ring outer wall, the pressure acted on the stationary ring conical surface of inclination can be decomposed into the axial force of pointing to stationary ring centripetal force radially and pointing to the rotating ring direction, by chance this axial force can promote stationary ring and be adjacent to the rotating ring ear end face, fluid pressure is larger, more stationary ring is pushed to rotating ring, this is very favourable to the sealing of strengthening between stationary ring and rotating ring.
The sealed baffle plate gland of sealing seat compresses, and is fixed in the oil pocket housing;
Wavy spring one end heads on sealing seat, and an end heads on the stationary ring ear end face, and stationary ring is being applied to elastic pressure, guarantees that the front end flange collar of stationary ring is close to the rotating ring ear end face all the time;
Pump case and oil pocket housing are screwed connection, and liquid turnover runner is arranged on pump case.
Lubricant oil input oilhole is arranged on the oil pocket housing, and upper end is connected with pump case;
Oil pocket housing lower end seals the rotating shaft outlet port of oil pocket housing with positioning seat.
The present invention tightly keeps apart the lubricant reservoir of the corrosive liquids runner of pump case and oil pocket housing by above-mentioned seal arrangement, not connected; The lubricant oil submergence wavy spring, the protection metal material be not corroded, the elastic force of wavy spring is tight in the laminating of guaranteeing rotating ring and stationary ring all the time.When carrying liquid, more having liquid to apply axial thrust load to the stationary ring conical surface increases the thrust to stationary ring, keeps the sealing between rotating ring and stationary ring effective for a long time.Rotating ring is blocked by the locating stud in the impeller pit, can be in pit relative sliding, only can follow the impeller synchronous rotary; Stationary ring is blocked and can not relatively rotate fixing in its sealing seat through hole by the lug of anti-rotation gland; During vane rotary, only on the surface of contact of rotating ring and stationary ring flange collar, produce frictional heating, area of contact is little, and there is again lubricant oil constantly to infiltrate the rotating contact face, pump housing running easily, greatly reduced frictional force and the heating value of seal arrangement, the lubricant oil in oil pocket also countershaft plays cooling action, thus this pump continuous running reliably under disconnection state.
The accompanying drawing explanation
Fig. 1 is pump housing outline drawing (omitting the component such as pump housing base not directly related with this patent);
Fig. 2 is the sectional view of Fig. 1 along A – A line;
The partial enlarged drawing that Fig. 3 is Fig. 2;
The STRUCTURE DECOMPOSITION figure that Fig. 4 is dry friction-resisting sealing device for pump body (omitting oil pocket housing and pump case);
The structure enlarged view that Fig. 5 is stationary ring, rotating ring, anti-rotation gland.
Description of reference numerals:
1 pump case, 2 oil pocket housings, 21 oilholes, 3 impellers, 31 rotating shafts, 32 locating studs, 4 seal ring of moving ring, 5 stationary ring seal rings, 6 rotating rings, 61 rotating ring breach, 7 stationary rings, 71 stationary ring breach, 72 stationary ring flange collars, 73 stationary ring conical surfaces, 8 wavy springs, 9 sealing seats, 10 sealing baffle glands, 11 anti-rotation glands, 111 lugs, 12 positioning seats.
Embodiment
Below by drawings and Examples, the present invention is further elaborated.
Embodiment:
The structure of dry friction-resisting sealing device for pump body as shown in Figures 1 to 5,, comprise the impeller 3 that is fixed in rotating shaft 31, hold pump case 1, the O RunddichtringO 4 and 5 of impeller 3 rotations, oil pocket housing 2, rotating ring 6 and stationary ring 7, wavy spring 8.Lubricant oil input oilhole 21 is arranged on oil pocket housing 2, and upper end is connected with pump case 1, and lower end seals the rotating shaft outlet port of oil pocket housing 2 with positioning seat 12.
Two rotating ring breach 61 of rotating ring 6 are blocked by two locating studs 32 of impeller 3, and when impeller 3 rotation, rotating ring 6 is forced in company with impeller 3 synchronous rotaries.And two stationary ring breach 71 of stationary ring 7 are blocked by two lugs 111 of anti-rotation gland 11, being fixed on 9 li of sealing seats can not rotate.
During impeller 3 rotation transfusion, rotating ring 6 produces relative rotation with stationary ring 7, and fricative heating is arranged on its surface of contact.But stationary ring 7 only contacts with the ear end face of rotating ring 6 with stationary ring flange collar 72, and area of contact is little, and heating value is also little.Add the grease channel arranged on stationary ring 7 inwalls and continuously lubricant oil is transported on the faying surface of stationary ring 7 and rotating ring 6, both counterrotating frictional force and heating value are greatly reduced.The heat that lubricant oil also produces partial frictional is taken away, interior cooling to lubricant reservoir.Due to fitting all the time ear end face of rotating ring 6 of stationary ring flange collar 72 being arranged, corrosive liquids can not enter stationary ring 7 inwalls, does not also reach the wavy spring 8 that metal is made.
The permanent use, the contacting point of rotating ring 6 and stationary ring 7 must be ground low to some extent, and at this moment the elastic force of wavy spring 8 can push away stationary ring 7 forward, uses the wearing and tearing of compensation this little, continues to guarantee the validity of seal arrangement.
Well-designed of the present invention is careful, and each surface of contact has been carried out to seal protection, especially the dynamic Contact face has been carried out to multi-sealed protection, guarantees the continuous running of the pump housing under all working state.
Claims (3)
1. dry friction-resisting sealing device for pump body, comprise the impeller be fixed in rotating shaft, the pump case of holding vane rotary and O RunddichtringO, characterized by further comprising: the oil pocket housing, rotating ring, stationary ring, wavy spring, anti-rotation gland, sealing seat, seal ring of moving ring, the stationary ring seal ring that fill lubricant oil;
Rotating ring is arranged in the rear end pit of impeller, and the breach on rotating ring is blocked and is forced to follow the impeller synchronous rotary by the locating stud in the impeller pit; Overlapping seal ring of moving ring on the sidewall of rotating ring front, fitting tightly with impeller pit sidewall;
Be provided with stationary ring in the through hole of sealing seat, the front-end face of described stationary ring is provided with the ear end face that a flange collar is close to rotating ring, and the stationary ring outer wall is provided with the stationary ring seal ring, fits tightly in the groove of sealing seat; The grease channel arranged on the stationary ring inwall and lubricant reservoir are communicated with; The back segment of stationary ring has several breach, and the lug shape of anti-rotation gland and size adaptation, by lug, is stuck and does not allow the frictional force band dynamic and static ring of rotating ring rotate;
The sealed baffle plate gland of sealing seat compresses, and is fixed in the oil pocket housing;
Wavy spring one end heads on sealing seat, and an end heads on the stationary ring ear end face, and stationary ring is being applied to elastic pressure;
Pump case and oil pocket housing are screwed connection, and liquid turnover runner is arranged on pump case;
Lubricant oil input oilhole is arranged on the oil pocket housing, and upper end is connected with pump case.
2. dry friction-resisting sealing device for pump body as claimed in claim 1, it is characterized in that: described stationary ring front-end face has a flange collar, is close to the ear end face of rotating ring; The intermediate portion of stationary ring outer wall is provided with a conical surface.
3. dry friction-resisting sealing device for pump body as claimed in claim 1, it is characterized in that: described oil pocket housing lower end seals the rotating shaft outlet port of oil pocket housing with positioning seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110229370 CN102269179B (en) | 2011-08-11 | 2011-08-11 | Dry friction-resisting sealing device for pump body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110229370 CN102269179B (en) | 2011-08-11 | 2011-08-11 | Dry friction-resisting sealing device for pump body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102269179A CN102269179A (en) | 2011-12-07 |
| CN102269179B true CN102269179B (en) | 2013-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110229370 Active CN102269179B (en) | 2011-08-11 | 2011-08-11 | Dry friction-resisting sealing device for pump body |
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| CN (1) | CN102269179B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257586A (en) * | 2015-10-20 | 2016-01-20 | 陕西科技大学 | Mechanical sealing device for methyl alcohol pump |
| CN105464991B (en) * | 2016-01-12 | 2017-08-01 | 绍兴文理学院 | Long-life is resistance to dry to turn impeller pump |
| CN106762699A (en) * | 2017-01-25 | 2017-05-31 | 兴化市中兴电器制造有限公司 | A kind of portable pump of big flow |
| CN107387426A (en) * | 2017-08-28 | 2017-11-24 | 兴化市中兴电动工具有限公司 | A kind of direct current portable pump |
| CN107476988A (en) * | 2017-09-13 | 2017-12-15 | 东莞客能机械泵业有限公司 | A kind of multi-functional mechanical pump |
| CN109577950A (en) * | 2018-12-04 | 2019-04-05 | 贵州航天凯山石油仪器有限公司 | The improved mounting structure of slip ring in a kind of optic fiber gyroscope inclinometer |
| CN112594396A (en) * | 2020-12-29 | 2021-04-02 | 上海创异流体机械有限公司 | Self-lubricating dry running mechanical seal |
| CN113279975A (en) * | 2021-06-16 | 2021-08-20 | 余炳强 | Submersible pump |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2078877A (en) * | 1980-06-23 | 1982-01-13 | Labour Pump Co Ltd | Pump sealing arrangements |
| CN2849250Y (en) * | 2005-05-16 | 2006-12-20 | 刘铭 | Improved mechanical sealing device |
| CN101029646A (en) * | 2006-03-01 | 2007-09-05 | 王友宏 | Fished chemical industry pump |
| CN201027690Y (en) * | 2007-03-30 | 2008-02-27 | 马东 | Novel sealing device for drilling fluids sand pump |
| CN201661475U (en) * | 2010-02-09 | 2010-12-01 | 王友宏 | Mortar pump |
| CN202251056U (en) * | 2011-08-11 | 2012-05-30 | 浙江威隆机械科技有限公司 | Pump body dry-resistant friction seal device |
-
2011
- 2011-08-11 CN CN 201110229370 patent/CN102269179B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2078877A (en) * | 1980-06-23 | 1982-01-13 | Labour Pump Co Ltd | Pump sealing arrangements |
| CN2849250Y (en) * | 2005-05-16 | 2006-12-20 | 刘铭 | Improved mechanical sealing device |
| CN101029646A (en) * | 2006-03-01 | 2007-09-05 | 王友宏 | Fished chemical industry pump |
| CN201027690Y (en) * | 2007-03-30 | 2008-02-27 | 马东 | Novel sealing device for drilling fluids sand pump |
| CN201661475U (en) * | 2010-02-09 | 2010-12-01 | 王友宏 | Mortar pump |
| CN202251056U (en) * | 2011-08-11 | 2012-05-30 | 浙江威隆机械科技有限公司 | Pump body dry-resistant friction seal device |
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|---|---|
| CN102269179A (en) | 2011-12-07 |
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Effective date of registration: 20210202 Address after: 300000 22-1-101, No.1, Yucheng Road, Yangliuqing town, Xiqing District, Tianjin Patentee after: TIANJIN LYUYE PETROCHEMICAL ENVIRONMENTAL PROTECTION EQUIPMENT Co.,Ltd. Address before: 312463 xiadushan village, Ganlin Town, Shengzhou City, Shaoxing City, Zhejiang Province Patentee before: ZHEJIANG WEILONG MECHANICAL TECHNOLOGY Co.,Ltd. |