CN208778329U - Centrifugal pump axle sleeve sealing structure - Google Patents
Centrifugal pump axle sleeve sealing structure Download PDFInfo
- Publication number
- CN208778329U CN208778329U CN201821308614.6U CN201821308614U CN208778329U CN 208778329 U CN208778329 U CN 208778329U CN 201821308614 U CN201821308614 U CN 201821308614U CN 208778329 U CN208778329 U CN 208778329U
- Authority
- CN
- China
- Prior art keywords
- axle sleeve
- pump
- main shaft
- suspension
- impeller
- 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)
Abstract
The utility model discloses a kind of centrifugal pump axle sleeve sealing structures, including pump case, pump cover and suspension, the right side of pump case is arranged in the pump cover, the pump cover is between pump case and suspension, the right end of the suspension is fixed with end cap, main shaft is movably installed with by bearing in the suspension, the junction of the main shaft and pump cover is socketed with axle sleeve, the axle sleeve outer ring is socketed organic envelope, the machine envelope is between pump cover and impeller, the right end of the impeller offers axle sleeve slot corresponding with axle sleeve, the left end of the axle sleeve is plugged into axle sleeve slot, the junction of the main shaft and bearing is equipped with bearing gland, it is connected by key between the main shaft and impeller, and it is locked by bolt, the nut external screw-thread of the bolt is connected with locking nut.Greatly improve the structural soundness of junction, it is not easy to loosen, improve centrifugal pump axle sleeve sealing structure, have the function that lift-off seal.
Description
Technical field
The utility model relates to be centrifuged pump technical field, specially a kind of centrifugal pump axle sleeve sealing structure.
Background technique
Centrifugal pump refers to the centrifugal force by generating when impeller rotation to convey the pump of liquid, and centrifugal pump has vertical, horizontal, single
The diversified forms such as grade, multistage, single suction, double suction, self-priming.Centrifugal pump is to be rotated using impeller and make water that centrifugal movement occur come work
Make.Water pump is before activation, it is necessary to make then to start motor full of water in pump case and suction hose, make pump shaft impeller and water
High speed rotary motion is done, water occurs centrifugal movement, is thrown toward impeller outer edge, and the runner through volute pump case flows into the pressure pipe of water pump
Road.
Centrifugal pump sleeve sealing is common sealing structure in centrifugal pump, and traditional centrifugal pump axle sleeve sealing structure needs
It slots on axle sleeve, the sealing area of the gasket of impeller and axle sleeve contact position is narrow, so that sealing performance is undesirable, has one
Fixed limitation.
Utility model content
The purpose of this utility model is to provide a kind of centrifugal pump axle sleeve sealing structures, to solve to mention in above-mentioned background technique
Out the problem of.
To achieve the above object, the utility model provides the following technical solutions: a kind of centrifugal pump axle sleeve sealing structure, including
The right side of pump case is arranged in pump case, pump cover and suspension, the pump cover, and the pump cover is described outstanding between pump case and suspension
The right end of frame is fixed with end cap, is movably installed with main shaft by bearing in the suspension, the left end of the main shaft through pump cover simultaneously
It extends in pump case, the left end of the main shaft is fixedly connected with impeller, and the junction of the main shaft and pump cover is socketed with axle sleeve, institute
It states axle sleeve outer ring and is socketed organic envelope, between pump cover and impeller, the right end of the impeller offers and axle sleeve phase the machine envelope
Corresponding axle sleeve slot, the left end of the axle sleeve are plugged into axle sleeve slot, and the junction of the main shaft and bearing is equipped with bearing pressure
Lid, is connected by key, and be locked by bolt between the main shaft and impeller, the nut external screw-thread connection of the bolt
There is locking nut.
As advanced optimizing for the technical program, a kind of centrifugal pump axle sleeve sealing structure of the utility model, the bearing
Gland and end cap are bolted to connection in suspension, and the suspension and pump cover are bolted to connection in pump case
As advanced optimizing for the technical program, a kind of centrifugal pump axle sleeve sealing structure of the utility model, the pump case
Bottom be equipped with fixing seat, and bolt hole used for positioning is offered in fixing seat.
As advanced optimizing for the technical program, a kind of centrifugal pump axle sleeve sealing structure of the utility model, the main shaft
Right end extend end cap.
Compared with prior art, the utility model has the beneficial effects that a kind of centrifugal pump sleeve sealing knot of the utility model
The left end of structure, main shaft through pump cover and extends in pump case, and the left end of main shaft is fixedly connected with impeller, between main shaft and impeller
It is connected by key, and is locked by bolt, the nut external screw-thread of bolt is connected with locking nut, greatly improves connection
The structural soundness at place, it is not easy to loosen, be optimized in centrifugal pump seal structure, improve centrifugal pump axle sleeve sealing structure, adopt
Replace original axle sleeve to slot with wheel slot, and then increase the sealing area of the gasket of impeller and axle sleeve contact position, reaches
To the effect of lift-off seal, guarantee the normal operation of centrifugal pump, standard component can be used, component versatility is universal, leakproofness
It can improve, greatly prolong sleeve sealing service life, there is very high practicability, it is close to greatly improve a kind of centrifugal pump axle sleeve
Using for seal structure is functional, guarantees its using effect and utilization benefit, is suitble to be widely popularized.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of centrifugal pump axle sleeve sealing structure of the utility model；
Fig. 2 is a kind of pump shell structure schematic diagram of centrifugal pump axle sleeve sealing structure of the utility model；
Fig. 3 is a kind of pump cover structure schematic diagram of centrifugal pump axle sleeve sealing structure of the utility model；
Fig. 4 is a kind of blade wheel structure schematic diagram of centrifugal pump axle sleeve sealing structure of the utility model；
Fig. 5 is a kind of pump cover structure schematic diagram of centrifugal pump axle sleeve sealing structure of the utility model；
Fig. 6 is a kind of axle sleeve structure schematic diagram of centrifugal pump axle sleeve sealing structure of the utility model；
Fig. 7 is a kind of machine seal structure schematic diagram of centrifugal pump axle sleeve sealing structure of the utility model；
Fig. 8 is a kind of impeller of centrifugal pump axle sleeve sealing structure of the utility model and the junction structural schematic diagram of main shaft.
In figure: 1 pump case, 2 suspensions, 3 suspensions, 4 main shafts, 5 impellers, 6 pump covers, 7 axle sleeves, 8 machines envelope, 9 locking nuts, 10 spiral shells
Bolt, 11 bearing glands, 12 end caps, 13 axle sleeve slots.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-8 is please referred to, the utility model provides a kind of technical solution: a kind of centrifugal pump axle sleeve sealing structure, including pump
The right side of pump case 1 is arranged in shell 1, pump cover 6 and suspension 2, the pump cover 6, the pump cover 6 between pump case 1 and suspension 2,
The right end of the suspension 2 is fixed with end cap 12, passes through bearing 3 in the suspension 2 and is movably installed with main shaft 4, a left side for the main shaft 4
Through pump cover 6 and extending in pump case 1, the left end of the main shaft 4 is fixedly connected with impeller 5 at end, the main shaft 4 and pump cover 6
Junction is socketed with axle sleeve 7, and 7 outer ring of axle sleeve is socketed organic envelope 8, and the machine envelope 8 is described between pump cover 6 and impeller 5
The right end of impeller 5 offer with the corresponding axle sleeve slot 13 of axle sleeve 7, the left end of the axle sleeve 7 is plugged into axle sleeve slot 13, described
The junction of main shaft 4 and bearing 3 is equipped with bearing gland 11, is connected by key between the main shaft 4 and impeller 5, and pass through spiral shell
Bolt 10 is locked, and the nut external screw-thread of the bolt 10 is connected with locking nut 9, by adding locking nut 9, mentions significantly
The structural soundness of junction is risen, it is not easy to loosen.
Specifically, the bearing gland 11 and end cap 12 are bolted to connection in suspension 2, the suspension 2 and pump
Lid 6 is bolted to connection in pump case 1
Specifically, the bottom of the pump case 1 is equipped with fixing seat, and bolt hole used for positioning is offered in fixing seat.
Specifically, the right end of the main shaft 4 extends end cap 12.
Working principle: a kind of centrifugal pump axle sleeve sealing structure of the utility model improves on the basis of existing technology,
In use, the left end of main shaft 4 is through pump cover 6 and extends in pump case 1, and the left end of main shaft 4 is fixedly connected with impeller 5, main shaft 4
It is connected by key between impeller 5, and is locked by bolt 10, by adding locking nut 9, greatly improve junction
Structural soundness, it is not easy to loosen, optimized in centrifugal pump seal structure, improve centrifugal pump axle sleeve sealing structure, use
The fluting of impeller 5 replaces original axle sleeve 7 to slot, and then increases the sealing area of the gasket of 7 contact position of impeller 5 and axle sleeve,
Have the function that lift-off seal, guarantee the normal operation of centrifugal pump, standard component can be used, component versatility is universal, sealing
Performance improves, and greatly prolongs sleeve sealing service life, is suitble to promote the use of.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (4)
1. a kind of centrifugal pump axle sleeve sealing structure, including pump case (1), pump cover (6) and suspension (2), pump cover (6) setting is being pumped
The right side of shell (1), the pump cover (6) are located between pump case (1) and suspension (2), and the right end of the suspension (2) is fixed with end cap
(12), it is movably installed with main shaft (4) in the suspension (2) by bearing (3), pump cover (6) are run through simultaneously in the left end of the main shaft (4)
It extends in pump case (1), the left end of the main shaft (4) is fixedly connected with impeller (5), it is characterised in that: the main shaft (4) and pump
The junction of lid (6) is socketed with axle sleeve (7), and axle sleeve (7) outer ring is socketed organic envelope (8), and the machine envelope (8) is located at pump cover
(6) between impeller (5), the right end of the impeller (5) offers corresponding axle sleeve slot (13), the axle sleeve with axle sleeve (7)
(7) left end is plugged into axle sleeve slot (13), and the junction of the main shaft (4) and bearing (3) is equipped with bearing gland (11), institute
It states and is connected by key between main shaft (4) and impeller (5), and be locked by bolt (10), outside the nut of the bolt (10)
Portion is threaded with locking nut (9).
2. a kind of centrifugal pump axle sleeve sealing structure according to claim 1, it is characterised in that: the bearing gland (11) and
End cap (12) is bolted to connection in suspension (2), the suspension (2) and pump cover (6) be bolted to connection in
Pump case (1).
3. a kind of centrifugal pump axle sleeve sealing structure according to claim 1, it is characterised in that: the bottom of the pump case (1)
Bolt hole used for positioning is offered equipped with fixing seat, and in fixing seat.
4. a kind of centrifugal pump axle sleeve sealing structure according to claim 1, it is characterised in that: the right end of the main shaft (4)
Extend end cap (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821308614.6U CN208778329U (en) | 2018-08-15 | 2018-08-15 | Centrifugal pump axle sleeve sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821308614.6U CN208778329U (en) | 2018-08-15 | 2018-08-15 | Centrifugal pump axle sleeve sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208778329U true CN208778329U (en) | 2019-04-23 |
Family
ID=66156795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821308614.6U Expired - Fee Related CN208778329U (en) | 2018-08-15 | 2018-08-15 | Centrifugal pump axle sleeve sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208778329U (en) |
-
2018
- 2018-08-15 CN CN201821308614.6U patent/CN208778329U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20190423 Termination date: 20190815 |