CN202673753U - Mechanical pump sealing device - Google Patents
Mechanical pump sealing device Download PDFInfo
- Publication number
- CN202673753U CN202673753U CN 201220270645 CN201220270645U CN202673753U CN 202673753 U CN202673753 U CN 202673753U CN 201220270645 CN201220270645 CN 201220270645 CN 201220270645 U CN201220270645 U CN 201220270645U CN 202673753 U CN202673753 U CN 202673753U
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- CN
- China
- Prior art keywords
- ring
- stationary
- spring
- seat
- pump housing
- 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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- Structures Of Non-Positive Displacement Pumps (AREA)
- Mechanical Sealing (AREA)
Abstract
The utility model mainly discloses a mechanical pump sealing device. The mechanical pump sealing device comprises moving rings, static rings and static ring seats, wherein upper end faces of the static rings contact with lower end faces of the moving rings, and the static ring seats are sleeved outside the static rings. The mechanical pump sealing device further comprises rotation-proof spring seats, springs and spring washers, wherein the rotation-proof spring seats are provided with spring holes for mounting the springs, and the springs are put in the spring holes and abut against the spring washers to jointly act on the lower end faces of the static rings. No spring of special structure is needed to compensate abrasion between the moving rings and the static rings, universality of parts is improved, and cost is lowered. Meanwhile, seats matched with the static ring sealing rings are simple to process and convenient to mount, and cost can be further lowered.
Description
Technical field
The utility model relates to the pump housing technical fields such as rotor pump, centrifugal pump, and is special relevant with a kind of pump housing mechanical seal device.
Background technique
Pump is a kind of appliance arrangement of carrying fluid, and during vane rotary in the pump, impeller shaft does not stop and seal arrangement spin friction, so the problem that causes because of frictional heating of shaft sealing device place, is technological difficulties in the pump housing technical field always.
In Chinese patent ZL201120290523.6, a kind of dry friction-resisting sealing device for pump body is proposed, wherein in the oil pocket housing, be provided with rotating ring, stationary ring, wavy spring, anti-rotation gland, stationary ring flange collar on the stationary ring contacts with rotating ring, rotating ring and stationary ring are respectively arranged with seal ring of moving ring and stationary ring seal ring, wherein the stationary ring seal ring is arranged in the groove of offering on the sealing seat, omits wiping between rotating ring and the stationary ring, promotes compensation by the wavy spring that is resisted against on the stationary ring.
In this patented technology, owing to the compensation between stationary ring and the rotating ring can only realize by wavy spring, and the wavy spring shape is special, and it is larger than common spring difficulty to make the processing technology requirement, therefore so that the pump sealer matching requirements of said structure are high.
Because the stationary ring seal ring is arranged in the groove of sealing seat inboard, and difficulty is large when assembling like this, the stationary ring seal ring need to be snapped onto accurately in the groove in the inner side surface again, and inner side surface fluting, the man-hour difficulty is large adding, and processing cost is high.
In order to address the above problem, the inventor designs a kind of pump housing mechanical seal device, and this case produces thus.
The model utility content
Main purpose of the present utility model provides a kind of pump housing mechanical seal device, and the wearing and tearing between the dynamic and static ring do not need to rely on the spring of special construction to realize compensation, improve the versatility of component, reduce cost.
Secondary objective of the present utility model provides a kind of pump housing mechanical seal device, and the pedestal processing that realization stationary ring seal ring cooperates is simple, easy for installation, further reduces cost.
In order to achieve the above object, the utility model is achieved through the following technical solutions:
A kind of pump housing mechanical seal device comprises rotating ring, stationary ring, stationary seat, and the upper-end surface of stationary ring contacts with the rotating ring lower end surface, and the stationary ring overcoat has stationary seat; It is characterized in that: also comprise anti-turn spring seat, spring, spring washer; Offer the spring eye for mounting spring on the anti-turn spring seat, spring is placed in the spring eye and leans on mutually with packing ring, and acting in conjunction is in the lower end surface of stationary ring.
Described stationary seat inboard has a circle convex tendon, and the stationary ring seal ring leans against on the convex tendon and forms sealing with the stationary ring outer wall.
Described anti-turn spring seat is connected and fixed by screw and stationary seat.
Described stationary seat is outside equipped with multiple-sealed circle.
Described stationary ring upper-end surface forms the stationary ring flange collar, and stationary ring contacts with rotating ring by the stationary ring flange collar.
Described rotating ring, stationary ring are installed in the inner of pump housing impeller shaft, and its rotating ring upper end is nested with in sealing nut, and sealing nut fixedly on the impeller shaft, sink in the impeller, and seals by O type circle.
Cover has seal ring of moving ring between described rotating ring and the sealing nut.
Described rotating ring, stationary ring are installed in the outer end of the impeller shaft of pump housing impeller shaft.
After adopting such scheme, the utlity model has many beneficial effects:
The pump sealer that proposes in the utility model, stationary ring and rotating ring are fitted closely all the time, have guaranteed external agency, tightly isolate such as the lubricant oil in corrosive liquids and the oil pocket housing, and be not connected.By the elastic force of spring, the wearing and tearing between the compensation dynamic and static ring remain fitting tightly between stationary ring and the rotating ring, realize the effectively permanent of sealing.
The structure of anti-turn spring seat and the assembly relation of spring have been proposed in the utility model, as long as spring is put into the spring eye of anti-turn spring seat, therefore, selecting of types of springs is not limited to wavy spring, the spring of other types all can be used in the utility model, solved the defective of spring unification, so that the part manufacture simplification is saved cost.
By the change of stationary ring seal ring mounting structure in the stationary seat, significantly simplified the process step of stationary seat in addition, the stationary ring seal ring is easy for installation, further reduces cost.And because stationary seat and stationary ring are an Open architecture, so that can relatively not block because medium enters between stationary seat and the stationary ring, guarantee that stationary seat is relative with stationary ring work smooth and easy.
Description of drawings
Fig. 1 is the solid assembling schematic representation of the utility model preferred embodiment;
Fig. 2 is A facial planes schematic representation among Fig. 1;
Fig. 3 is B facial planes schematic representation among Fig. 1.
Embodiment
By reference to the accompanying drawings, preferred embodiment is described in further details to the utility model.
A kind of pump housing mechanical seal device is installed on the impeller shaft 1, and impeller shaft 1 is set in the impeller 2.The up and down two ends part of passing impeller 2 at impeller shaft 1 all is provided with mechanical seal device of the present utility model.
In conjunction with Fig. 2, comprise rotating ring 3, stationary ring 4, stationary seat 5, anti-turn spring seat 6, spring 7, spring washer 8 in the present embodiment.
Rotating ring 3 and stationary ring 4 are set in the impeller shaft 1, and the upper-end surface of stationary ring 4 forms a circle stationary ring flange collar 41, the lower end surface of stationary ring flange collar 41 and rotating ring 3 against, can reduce thus the area of contact between rotating ring 3 and the stationary ring 4.
Outer cover at stationary ring 4 has stationary seat 5, and stationary seat 5 inboards have a circle to the convex tendon 51 of inner process, shelve stationary ring seal ring 42 at this convex tendon 51.Because convex tendon 51 structure of having avoided original groove to cave inward, it is simple and convenient that therefore stationary ring seal ring 420 minutes is installed.Be connected and fixed by screw 62 and stationary seat 5 on the anti-turn spring seat 6 simultaneously.
Owing to the structure among Fig. 2, be mounted in the inner of impeller shaft 1, therefore cover has a sealing nut 9 on rotating ring 3.Seal ring of moving ring 31 sealings are installed between rotating ring 3 and the sealing nut 9.Sealing nut 9 screw threads are fixedly connected with on the impeller shaft 1, sink to simultaneously the inner of impeller 2, and 91 sealings of O RunddichtringO are also passed through in the outside.
In order to strengthen the outside seal of its seal arrangement, at the outer surface cover of stationary seat 5 two seals circle 10 is arranged.
In conjunction with Fig. 3, this part is mounted in the outer end of impeller shaft 1, and therefore sealing nut 9 is not set.And the assembly relation of its rotating ring 3, stationary ring 4, stationary seat 5, anti-turn spring seat 6, spring 7, spring washer 8 is all identical with principle.Here slightly some difference be that anti-turn spring seat 6 is to snap in stationary seat 5 the inners.
When using in the utility model, impeller shaft 1 rotates band rotating ring 3 and rotates together, and stationary ring 4 is relatively static, surface of contact has frictional loss between the two thus, by the elastic reaction of anti-turn spring seat 6 and spring 7, keep in touch with rotating ring 3 all the time so that promote stationary ring 4, offset wearing and tearing.Because spring 7 is directly installed on the spring eye 62 on the anti-turn spring seat 6, this structure requires low to spring, solved the defective of spring unification, so that the spring kind is selected diversity, part processing is simple, saves cost.
As long as stationary ring seal ring stationary ring seal ring 42 simply put in the convex tendon 5 is shelved in stationary seat 5 in addition, in the stationary ring assembling, simplifies assembling again, and while stationary seat 5 is easy to process, further reduces cost.And after stationary seat 5 architecture advances, be an open fittings structure with stationary ring, and when extraneous medium enters between stationary seat 5 and the stationary ring 4, can relatively not block because medium enters, guarantee that stationary seat 5 is relative smooth and easy with stationary ring 4 work.
Above-described embodiment only is used for explaining inventive concept of the present utility model, but not to the restriction of the utility model rights protection, allly utilizes this design that the utility model is carried out the change of unsubstantiality, all should fall into protection domain of the present utility model.
Claims (8)
1. a pump housing mechanical seal device comprises rotating ring, stationary ring, stationary seat, and the upper-end surface of stationary ring contacts with the rotating ring lower end surface, and the stationary ring overcoat has stationary seat; It is characterized in that: also comprise anti-turn spring seat, spring, spring washer; Offer the spring eye for mounting spring on the anti-turn spring seat, spring is placed in the spring eye and leans on mutually with packing ring, and acting in conjunction is in the lower end surface of stationary ring.
2. a kind of pump housing mechanical seal device as claimed in claim 1 is characterized in that: described stationary seat inboard has a circle convex tendon, and the stationary ring seal ring leans against on the convex tendon and forms sealing with the stationary ring outer wall.
3. a kind of pump housing mechanical seal device as claimed in claim 1, it is characterized in that: described anti-turn spring seat is connected and fixed by screw and stationary seat.
4. a kind of pump housing mechanical seal device as claimed in claim 1, it is characterized in that: described stationary seat is outside equipped with multiple-sealed circle.
5. a kind of pump housing mechanical seal device as claimed in claim 1 is characterized in that: described stationary ring upper-end surface forms the stationary ring flange collar, and stationary ring contacts with rotating ring by the stationary ring flange collar.
6. such as each described a kind of pump housing mechanical seal device of claim 1 to 5, it is characterized in that: described rotating ring, stationary ring are installed in the inner of pump housing impeller shaft, and its rotating ring upper end is nested with in sealing nut, and sealing nut is fixedly on the impeller shaft, sink in the impeller, and by the sealing of O type circle.
7. a kind of pump housing mechanical seal device as claimed in claim 6 is characterized in that: cover has seal ring of moving ring between described rotating ring and the sealing nut.
8. such as each described a kind of pump housing mechanical seal device of claim 1 to 5, it is characterized in that: described rotating ring, stationary ring are installed in the outer end of the impeller shaft of pump housing impeller shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220270645 CN202673753U (en) | 2012-06-06 | 2012-06-06 | Mechanical pump sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220270645 CN202673753U (en) | 2012-06-06 | 2012-06-06 | Mechanical pump sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202673753U true CN202673753U (en) | 2013-01-16 |
Family
ID=47494660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220270645 Expired - Fee Related CN202673753U (en) | 2012-06-06 | 2012-06-06 | Mechanical pump sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202673753U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2012
- 2012-06-06 CN CN 201220270645 patent/CN202673753U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130116 Termination date: 20210606 |