CN202251056U - Pump body dry-resistant friction seal device - Google Patents
Pump body dry-resistant friction seal device Download PDFInfo
- Publication number
- CN202251056U CN202251056U CN2011202905236U CN201120290523U CN202251056U CN 202251056 U CN202251056 U CN 202251056U CN 2011202905236 U CN2011202905236 U CN 2011202905236U CN 201120290523 U CN201120290523 U CN 201120290523U CN 202251056 U CN202251056 U CN 202251056U
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- China
- Prior art keywords
- ring
- stationary ring
- impeller
- oil pocket
- rotating
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- 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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a pump body dry-resistant friction seal device which comprises an impellor, a shell filled with lubricating oil, a moving ring and a static ring; a convex ring is arranged on the front end surface of the static ring arranged in a through hole of a seal base, and is glued to the rear end surface of the moving ring; a lubricating oil channel arranged on the inner ring of the static ring is communicated with a lubricating oil cavity; one end of a waveform spring props against the seal base, and the other end of the waveform spring props against the rear end surface of the static ring and applies elastic pressure to the static ring, thus the static ring is ensured to be glued to the rear end surface of the moving ring; and the moving ring is arranged in a groove on the rear end surface of the impellor, and the notch of the moving ring is clamped by a positioning pin. According to the utility model, a liquid flow channel and the lubricating oil cavity are separated closely; and when the impellor rotates, the lubricating oil continuously permeates into the contact surface of the moving ring and the static ring, a pump body rotates easily, the friction force and heat productivity are reduced greatly, a permanent and effective seal is maintained, and the pump body dry-resistant friction seal device can operate under a cut-off state continuously.
Description
Technical field
The present invention relates to the pump field, specifically refer to the pump housing seal arrangement of anti-the dry friction.
Background technique
Impeller is the critical component that pump is used for carrying liquid; Since impeller shaft do not stop with seal arrangement spin friction; Even drive seal arrangement again with peripheral component spin friction, generate heat because of friction at the seal arrangement place of its rotating shaft, the dynamic fluid that leans on impeller to carry is entirely taken away this heat.The pump that use in the chemical plant is perhaps carried the pump of thick liquids such as corrosive liquids, heavy oil, mud, and in course of conveying, liquid has been drained or do not connect; If the operator does not realize, untimely shutdown, have more than is needed a few minutes; Because having lacked working fluid takes away heat; 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 gets the aspiration phases of monitoring the pump housing constantly, and connecting the lavatory all will have relief by turns.The claimant is through concentrating on studies, and repetition test has obtained breakthrough finally, thinks and has filled up a domestic blank.
Summary of the invention
The objective of the invention is to overcome the defective of existing technology, provide a kind of can also continuous running 24 hours and the pump housing seal arrangement of anti-dry friction that can not burn out at the disconnection state lower pump body, the pump housing is able to prolong working life, has alleviated operator's stress greatly.
To achieve these goals; Technological scheme of the present invention is following: the pump housing seal arrangement of anti-the dry friction; Comprise the impeller that is fixed in the rotating shaft, hold the pump case and the O RunddichtringO of impeller rotation, it is characterized in that also comprising: fill the oil pocket housing, rotating ring, stationary ring, wavy spring, anti-rotation gland of lubricant oil etc.;
Rotating ring is installed in the rear end pit of impeller, and the breach on the rotating ring is blocked by the locating stud in the impeller pit and compelled follow impeller and rotate synchronously, 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;
In the through hole of sealing seat, be provided with stationary ring, the stationary ring outer wall is provided with the stationary ring seal ring, fits tightly in the groove of sealing seat; Grease channel that is provided with on the stationary ring inwall and lubricant reservoir are communicated with; The back segment of stationary ring has the lug shape of several breach and anti-rotation gland adaptive with size, is stuck the frictional force of not allowing rotating ring by lug and drives the stationary ring rotation; The front-end face of stationary ring has a protruding circle, 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 bigger, and the liquid in the pump case also has this hydraulic pressure to the stationary ring outer wall, acts on pressure on the stationary ring conical surface of inclination and can be decomposed into and point to stationary ring centripetal force radially and the axial force of 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 big more, pushes stationary ring to rotating ring more, and this is very favourable to the sealing of strengthening between stationary ring and the rotating ring;
Sealing seat is compressed by the sealing baffle gland, 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 elastic pressure, guarantees that the protruding circle of front end of stationary ring is adjacent to the rotating ring ear end face all the time.
Pump case is fixedly connected with screw with the oil pocket housing, and liquid turnover runner is arranged on the pump case;
Lubricant oil input oilhole is arranged on the oil pocket housing, and the upper end is connected with pump case, and the lower end seals the rotating shaft outlet port of oil pocket housing with positioning seat.
The present invention through above-mentioned seal arrangement tight the keeping apart of lubricant reservoir of the corrosive liquids runner of pump case and oil pocket housing, 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 applying of guaranteeing rotating ring and stationary ring all the time.When carrying liquid, more having liquid that the stationary ring conical surface is applied axial thrust load increases the thrust to stationary ring, keeps the sealing between rotating ring and the stationary ring effective for a long time.Rotating ring is blocked by the locating stud in the impeller pit, can be in pit slide relative, only can follow impeller and rotate synchronously; Stationary ring is blocked and can not in the sealing seat through hole of fixing it, relatively rotate by the lug of anti-rotation gland; During the impeller rotation; Only on the surface of contact of rotating ring and the protruding circle of stationary ring, produce frictional heating, area of contact is little, and has lubricant oil constantly to infiltrate the rotation surface of contact again; Pump housing running easily; Significantly reduced the frictional force and the heating value of seal arrangement, the lubricant oil in the oil pocket also countershaft plays cooling action, thus this pump continuous running reliably under disconnection state.
Description of drawings
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;
Fig. 3 is the partial enlarged drawing of Fig. 2;
Fig. 4 is the STRUCTURE DECOMPOSITION figure (omitting oil pocket housing and pump case) of the pump housing seal arrangement of anti-the dry friction;
Fig. 5 is the structure enlarged view of 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; The protruding circle of 72 stationary rings, 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
Through accompanying drawing and embodiment the present invention is done further to set forth in detail below.
Embodiment:
The structure of the pump housing seal arrangement of anti-dry friction the such as Fig. 1 comprise the impeller 3 that is fixed in the rotating shaft 31, pump case 1, the O RunddichtringO 4 and 5 that holds impeller 3 rotations, oil pocket housing 2, rotating ring 6 and stationary ring 7, wavy spring 8 to shown in Figure 5.Lubricant oil input oilhole 21 is arranged on the oil pocket housing 2, and the upper end is connected with pump case 1, and the 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 rotations, rotating ring 6 is compelled to rotate synchronously in company with impeller 3.And two stationary ring breach 71 of stationary ring 7 are blocked by two lugs 111 of anti-rotation gland 11, are fixed on sealing seat and can not rotate for 9 li.
During impeller 3 rotation transfusions, rotating ring 6 produces rotation relatively 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 protruding circle 72 of stationary ring and rotating ring 6, and area of contact is little, and heating value is also little.Add the grease channel that is provided with on stationary ring 7 inwalls and be transported to lubricant oil on the faying surface of stationary ring 7 and rotating ring 6 continuously, both counterrotating frictional force and heating value are significantly reduced.Lubricant oil is also taken away the heat that partial frictional produces, and in lubricant reservoir, cools off.Because fitting all the time ear end face of rotating ring 6 of the protruding circle 72 of stationary ring is arranged, and corrosive liquids can not get into 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 a little, continues to guarantee the validity of seal arrangement.
Well-designed of the present invention is careful, and each surface of contact has all been carried out seal protection, especially dynamic surface of contact has been carried out multi-sealed protection, guarantees the continuous running of the pump housing under all working state.
Claims (3)
1. the pump housing seal arrangement of anti-the dry friction comprises the impeller that is fixed in the rotating shaft, pump case and the O RunddichtringO that holds the impeller rotation, it is characterized in that also comprising: the oil pocket housing, rotating ring, stationary ring, wavy spring, the anti-rotation gland that fill lubricant oil;
Rotating ring is installed in the rear end pit of impeller, and the breach on the rotating ring is blocked by the locating stud in the impeller pit and compelled follow impeller and rotate synchronously; Overlapping seal ring of moving ring on the sidewall of rotating ring front, fitting tightly with impeller pit sidewall;
In the through hole of sealing seat, be provided with stationary ring, be close to the ear end face of rotating ring, the stationary ring outer wall is provided with the stationary ring seal ring, fits tightly in the groove of sealing seat; Grease channel that is provided with on the stationary ring inwall and lubricant reservoir are communicated with; The back segment of stationary ring has the lug shape of several breach and anti-rotation gland adaptive with size, is stuck the frictional force of not allowing rotating ring by lug and drives the stationary ring rotation;
Sealing seat is compressed by the sealing baffle gland, 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 elastic pressure;
Pump case is fixedly connected with screw with the oil pocket housing, and liquid turnover runner is arranged on the pump case;
Lubricant oil input oilhole is arranged on the oil pocket housing, and the upper end is connected with pump case.
2. the pump housing seal arrangement of anti-dry friction the as claimed in claim 1 is characterized in that: described stationary ring front-end face has a protruding circle; The intermediate portion of stationary ring outer wall is provided with a conical surface.
3. the pump housing seal arrangement of anti-dry friction the as claimed in claim 1 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 |
|---|---|---|---|
| CN2011202905236U CN202251056U (en) | 2011-08-11 | 2011-08-11 | Pump body dry-resistant friction seal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202905236U CN202251056U (en) | 2011-08-11 | 2011-08-11 | Pump body dry-resistant friction seal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202251056U true CN202251056U (en) | 2012-05-30 |
Family
ID=46112308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202905236U Withdrawn - After Issue CN202251056U (en) | 2011-08-11 | 2011-08-11 | Pump body dry-resistant friction seal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202251056U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102269179A (en) * | 2011-08-11 | 2011-12-07 | 浙江威隆机械科技有限公司 | Dry friction-resisting sealing device for pump body |
| CN102720688A (en) * | 2012-06-06 | 2012-10-10 | 浙江威隆机械科技有限公司 | Mechanical sealing device of pump body |
-
2011
- 2011-08-11 CN CN2011202905236U patent/CN202251056U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102269179A (en) * | 2011-08-11 | 2011-12-07 | 浙江威隆机械科技有限公司 | Dry friction-resisting sealing device for pump body |
| CN102269179B (en) * | 2011-08-11 | 2013-05-08 | 浙江威隆机械科技有限公司 | Dry friction-resisting sealing device for pump body |
| CN102720688A (en) * | 2012-06-06 | 2012-10-10 | 浙江威隆机械科技有限公司 | Mechanical sealing device of pump body |
| CN102720688B (en) * | 2012-06-06 | 2014-11-05 | 浙江威隆机械科技有限公司 | Mechanical sealing device of pump body |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120530 Effective date of abandoning: 20130508 |
|
| RGAV | Abandon patent right to avoid regrant |