CN106870392A - A kind of self priming pump - Google Patents
A kind of self priming pump Download PDFInfo
- Publication number
- CN106870392A CN106870392A CN201710220245.9A CN201710220245A CN106870392A CN 106870392 A CN106870392 A CN 106870392A CN 201710220245 A CN201710220245 A CN 201710220245A CN 106870392 A CN106870392 A CN 106870392A
- Authority
- CN
- China
- Prior art keywords
- pump
- shaft
- impeller
- self priming
- pipe joint
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D9/00—Priming; Preventing vapour lock
- F04D9/02—Self-priming pumps
Abstract
A kind of self priming pump of the present invention, has carried out structure simplification, innovation, with small volume, easy-operating feature on the basis of traditional self priming pump.The hollow-core construction of designed pump shaft of the invention, is directly connected by key with electric machine main shaft；Make, the minimum point position of center line higher than impeller of intake bore concordant with impeller inlet internal diameter peak into water bore peak；Simplify by self priming pump water inlet pipe, pump body structure.The self-suction function of pump is realized with simple, light structure.
Description
Art
The invention belongs to mechanical field, specially a kind of self priming pump.
Background technology
Self priming pump, is widely used in the conveying of all kinds of liquid materials, with it is simple, easy to operate the features such as.In traditional self-priming
In the structure design of pump, pump shaft is connected by shaft coupling with electric machine main shaft mostly, and in water inlet pipe long in pump and pump chamber
Portion's other structures are also complex.To make self priming pump simplify the structure and unstability is not qualitative and practicality, in the present invention, profit
Directly it is coupled with electric machine main shaft, and water inlet pipe structure is simplified with pump shaft own structural characteristics, it is met
The self-priming effect of pump, makes whole pump configuration easy to be light and handy again.
The content of the invention
The present invention is intended to provide a kind of self priming pump, carries out structure innovation, simplification on the basis of traditional self priming pump.In order to reach
Above-mentioned purpose, technical scheme is as follows：
A kind of self priming pump, is close by admitting pipe joint, front shroud, impeller, the pump housing, titting water outlet, pump shaft, machinery
The structure composition such as envelope and motor.
The front shroud is integrated by bolt with pump coupling, forms sealing pump chamber.
Loaded in pump chamber, its center line overlaps the impeller with front shroud, pump housing center line, is coupled with pump shaft by key,
And fixed in shaft end using impeller nut.
The admitting pipe joint is threadingly attached on front shroud, there is rubber seal between admitting pipe joint and front shroud
Circle, and water inlet bore peak is concordant with impeller inlet internal diameter peak, the minimum point of bore of intaking is higher than in impeller
Heart line position.
The pump shaft is the hollow rotary shaft in one end, and hollow internal diameter is identical with electric machine main shaft external diameter, axle sleeve and electric machine main shaft
By key joint, transfer motion power.
The mechanical seal is placed between pump shaft and the pump housing.The motor is directly connected as a single entity by stopping pin with the pump housing.
The outlet pipe is located at directly over pump chamber, by bolt and pump coupling.
The present invention both can reach the self-priming purpose of pump, and pump body structure is optimized again, make whole pump configuration lighter, also be certainly
The later maintenance of sucking pump provides facility.
Brief description of the drawings
The present invention is further described with implementation method below in conjunction with the accompanying drawings.
Fig. 1 is traditional self priming pump main sectional view.In figure：1. the reservoir chamber 4. of 2. water-in flange adapter of admitting pipe joint 3.
The Discharging bent-tube of 11. motor of return valve 5. impeller, 6. pump housing, 7. mechanical seal, 8. bearing, 9. pump shaft, 10. shaft coupling 12.
The gas-liquid separation chamber of 13. air bleeding valve 14..
The admitting pipe joint of traditional self priming pump is often far above impeller inlet peak, and admitting pipe joint and impeller inlet
Between have one section of inlet pipeline very long, this considerably increases self priming pump volume and weight in itself, the internal structure of its pump chamber sets
Meter is also complex.On the other hand, the pump shaft of traditional self priming pump is mostly connected by shaft coupling with electric machine main shaft, and structure is heavy multiple
It is miscellaneous.
Fig. 2 is a kind of self priming pump front view of present invention design.In figure：1. before the rubber seal 3. of admitting pipe joint 2.
The mechanical seal 11. of 9. pump housing of semicircle sealing paper washer 6. impeller, 7. impeller nut, 8. pump chamber of bolt 5. of cover plate 4. 10.
The titting water outlet of 15. motor of pump shaft 12. key, 13. elastic washer, 14. stopping pin 16..
Admitting pipe joint (1) is coupled by bolt with front shroud (3), to ensure the self-priming effect that pump starts in next time, is made
Admitting pipe joint internal diameter peak is concordant with impeller inlet internal diameter peak, and admitting pipe joint internal diameter minimum point is entered higher than impeller
Mouth position of center line.Using one end there is hollow pump shaft (9) to be directly connected with motor (15) main shaft by key (11), it is more traditional
Self priming pump is lighter using the method that shaft coupling is coupled.
Fig. 3 is a kind of self priming pump left view of present invention design.In figure：1. the bolt of 3. front shroud of admitting pipe joint 4.
16. titting water outlets.
Specific embodiment
A kind of self priming pump, mainly by admitting pipe joint (1), front shroud (3), impeller (6), the pump housing (9), pump shaft (11), electricity
Machine (15), titting water outlet (16) composition.Front shroud (3) is coupled as one by semicircle bolt (4) with the pump housing (9), is formed
Sealing pump chamber (8).Loaded in pump chamber (8), its center line overlaps impeller (6) with front shroud (3), the pump housing (9) center line, by key
It is coupled with pump shaft (11), and is fixed in shaft end using impeller nut (7).Admitting pipe joint (1) is joined by bolt and front shroud (3)
Knot, bolt carries rubber seal (2), and admitting pipe joint internal diameter peak is concordant with impeller inlet internal diameter peak, and water inlet
Internal diameter of pipe joint minimum point is higher than impeller inlet position of center line.Pump shaft (11) utilizes its hollow-core construction, with motor (15) main shaft
Coordinate, and be linked by key (12).Mechanical seal (10) is placed between pump shaft (11) and the pump housing (9).Motor (15) is by only
Rationed marketing (14) is directly connected as a single entity with the pump housing (9) shell.Titting water outlet (16) directly over the pump chamber (8), by bolt with
The pump housing (9) is coupled.In motor stopping, liquid can be back in pump chamber (8) in titting water outlet (16), due to admitting pipe joint
Internal diameter minimum point is higher than impeller inlet center line, therefore, liquid storage water level is higher than impeller center line in pump.Start next time in motor
When, motor (15) impeller (6) rotation, pump chamber (8) inner storing water is discharged under leaf (6) centrifugal action, due in pump chamber (8)
There is a small amount of gas, and gas is much smaller compared with fluid density, when liquid follows impeller to rotate, gas takes the lead in being discharged the pump housing (9),
As pump chamber (8) interior gas is gradually decreased, so that liquid is inhaled into pump in admitting pipe joint (1), until being full of whole pump chamber
(8).Mechanical seal (9) is cased with pump shaft, it is to avoid the suction of pump chamber (8) interior liquid leakage and ambient atmos.
A kind of self priming pump of the invention, it is portable construction, compact, many processing cost and hardware are reduced, it is same to obtain
The ability of self-priming.
Claims (3)
1. a kind of self priming pump, structure mainly by admitting pipe joint (1), front shroud (3), impeller (6), the pump housing (9), pump shaft (11),
Mechanical seal (10), motor (15), titting water outlet (16) composition.The admitting pipe joint (1) is by screw thread and front shroud (3)
It is coupled；Sealed by rubber seal (2) between admitting pipe joint (1) and front shroud (3).The front shroud (3) passes through
Bolt (5) is coupled with the pump housing (9), forms closed pump chamber (8)；Between front shroud (3) and the pump housing (9) by seal paper washer carry out it is close
Envelope.Impeller (6) is coupled, and fixed in shaft end using impeller nut (7) by key (12) in pump chamber (8) with pump shaft (11).
The pump shaft (11) is that one end is hollow rotary shaft, and hollow one end is connected by key (12) with motor (15) main shaft, pump shaft
(11) mechanical seal (10) is housed and the pump housing (9) between.The motor is fixed on the pump housing (9) by stopping pin (14).
2. a kind of self priming pump according to claim 1, it is characterised in that：Admitting pipe joint (1) internal diameter peak and leaf
Wheel import internal diameter peak is concordant, and admitting pipe joint (1) internal diameter minimum point is higher than impeller (6) import position of center line.
3. a kind of self priming pump according to claim 1, it is characterised in that：One end of pump shaft (11), can be with electricity for hollow
Machine (15) shaft end external diameter carries out interference fits, and pump shaft (11) is linked by key (12) with electric machine main shaft (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710220245.9A CN106870392A (en) | 2017-03-21 | 2017-03-21 | A kind of self priming pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710220245.9A CN106870392A (en) | 2017-03-21 | 2017-03-21 | A kind of self priming pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106870392A true CN106870392A (en) | 2017-06-20 |
Family
ID=59160140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710220245.9A Pending CN106870392A (en) | 2017-03-21 | 2017-03-21 | A kind of self priming pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106870392A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591122A (en) * | 2018-04-11 | 2018-09-28 | 曹珠明 | A kind of protecgulum regulating device of blowdown self priming pump |
-
2017
- 2017-03-21 CN CN201710220245.9A patent/CN106870392A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591122A (en) * | 2018-04-11 | 2018-09-28 | 曹珠明 | A kind of protecgulum regulating device of blowdown self priming pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170620 |