CN201187471Y - Air compression type non-seal submersible pump - Google Patents
Air compression type non-seal submersible pump Download PDFInfo
- Publication number
- CN201187471Y CN201187471Y CNU2008200701942U CN200820070194U CN201187471Y CN 201187471 Y CN201187471 Y CN 201187471Y CN U2008200701942 U CNU2008200701942 U CN U2008200701942U CN 200820070194 U CN200820070194 U CN 200820070194U CN 201187471 Y CN201187471 Y CN 201187471Y
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- CN
- China
- Prior art keywords
- motor
- impeller
- axle sleeve
- sleeve
- motor shaft
- 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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Abstract
The utility model discloses an air compression-type seal-free submersible pump, which comprises a motor unit, a sealing unit, and an impeller unit communicating with the sealing unit, which are arranged in a shell body from bottom to top. A water inlet is formed on a shell body located in the sealing unit; a water outlet is formed at the top end of the impeller unit. A motor shaft of the motor unit extends upwards into the impeller unit. An impeller is disposed on the motor shaft located in the impeller unit. A shaft sleeve with a trapezoidal cross-section is sleeved on the motor shaft located in the sealing unit in a movable fit manner, and a sleeve plate of the shaft sleeve is connected with the shell body. A sleeve nut is hermetically and fixedly connected with the motor shaft located above the shaft sleeve, the nut opening of the sleeve nut extends downwards to the position close to the sleeve plate of the shaft sleeve, and the inner circumference of the sleeve nut is in clearance fit with the outer circumference of the shaft sleeve. The submersible pump has the advantages that the pump realizes that a sealing member is not required to be still, reduces the motor load and the noise pollution, and prolongs the service life is prolonged.
Description
Technical field
The utility model relates to submersible pump, especially relates to air compression type seal-free submersible pump.
Background technique
Traditional submersible pump structure is many to be made of electric motor units and impeller units; Impeller is installed on the motor shaft, by the rotation of motor shaft drives impeller water is drawn into ground.Rubber seal, machinery oil sealing, cotton rope packing_seal etc. are taked in the sealing of motor usually.Because the working environment of submersible pump is comparatively abominable, usually be operated in the water that contains mud, mixed sand, drift sand, make sealed member shorter working life, in case seal failure will cause burn-down of electric motor.And the use of above-mentioned sealed member has also increased the load of motor.
The model utility content
The utility model purpose is to provide a kind of air compression type seal-free submersible pump of long service life.
For achieving the above object, the utility model can be taked following technical proposals:
Air compression type seal-free submersible pump described in the utility model, it comprises the electric motor units that is arranged in the housing, sealing unit, the impeller units that is connected with described sealing unit from bottom to top; Offer water intake being positioned on the housing of sealing unit; Top in described impeller units offers water outlet; The motor shaft of described electric motor units extends upwardly in the impeller units; The motor shaft that is positioned at impeller units is provided with impeller; Be set with the axle sleeve that cross section is trapezoidal or taper on the motor shaft of sealing unit movingly being positioned at, the cage plate of described axle sleeve is connected with housing, sealing is fixed with cap bag on the motor shaft that is positioned at above the axle sleeve, the cap mouth of described cap bag extends downward cage plate position, cap bag inner peripheral surface and the axle sleeve outer circumferential face Spielpassung near axle sleeve.
Motor in the described electric motor units is the oil immersed type motor; The cap mouth of described cap bag is outward flanging structure radially; At the radially uniform eccentric groove that offers of the lower surface of described flange.
Be provided with the float-ball type induction switch at the gap location between described cap bag inner peripheral surface and axle sleeve outer circumferential face.
The utility model advantage be with mode movingly be sleeved on the described sealing unit motor shaft, cross section is the axle sleeve of trapezoidal or taper, the cage plate and the housing of axle sleeve are fixed, and on the motor shaft above the axle sleeve cap bag that extends downwards of sealing and fixing; Therefore when the submersible pump vertical drop dive is in water, water enters in the housing from the water intake that is opened on the sealing unit housing, because cap bag inner peripheral surface and axle sleeve outer circumferential face Spielpassung, water will enter in this gap and with the air in the cap bag and compress to electric motor units, owing to be compressed the existence of resistance of air, make the water restriction enter in the cap bag be limited in certain altitude and can not enter electric motor units, thereby realize need not the standstill seal parts, reduce motor load and noise pollution, raising purpose in working life.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
As shown in the figure, air compression type seal-free submersible pump described in the utility model comprises the electric motor units that is arranged in the housing 1, sealing unit, the impeller units that is connected with described sealing unit from bottom to top; Offer water intake 2 on the housing of sealing unit being positioned at; Offer water outlet 3 on the top of described impeller units; The motor shaft 4 of described electric motor units extends upwardly in the impeller units; The motor shaft 4 that is positioned at impeller units is provided with impeller 5; Being set with cross section on the motor shaft 4 that is positioned at sealing unit movingly is trapezoidal axle sleeve 6, and the cage plate 7 of described axle sleeve 6 is connected mutually with housing 1; Sealing is fixed with cap bag 8 on the motor shaft 4 that is positioned at above the axle sleeve 6, the cap mouth of described cap bag 8 extends downward cage plate 7 positions near axle sleeve 6, cap bag 8 inner peripheral surfaces and axle sleeve 6 outer circumferential face Spielpassung, in described gap, be provided with float-ball type induction switch 10, therefore, arrive the degree of depth of setting when pump housing dive after, float-ball type induction switch 10 is reported to the police the closure prompting.Motor in the described electric motor units is the oil immersed type motor, owing to be full of insulating oil in the motor, has reduced the air of motor cavity like this; The cap mouth of described cap bag 8 is outward flanging 9 structures radially; At the radially uniform eccentric groove that offers of the lower surface of described flange 9, like this when motor shaft 4 drives cap bags 8 rotations, water being discharged from cap bag 8 inner peripheral surfaces and the axle sleeve 6 outer circumferential face gaps in the centrifugal action bottom.
Claims (3)
1, a kind of air compression type seal-free submersible pump, it comprises the electric motor units that is arranged in the housing (1), sealing unit, the impeller units that is connected with described sealing unit from bottom to top; It is characterized in that: offer water intake (2) on the housing of sealing unit being positioned at; Offer water outlet (3) on the top of described impeller units; The motor shaft of described electric motor units (4) extends upwardly in the impeller units; The motor shaft (4) that is positioned at impeller units is provided with impeller (5); Be set with the axle sleeve that cross section is trapezoidal or taper (6) on the motor shaft of sealing unit (4) movingly being positioned at, the cage plate (7) of described axle sleeve (6) is connected with housing (1), go up sealing at the motor shaft (4) that is positioned at axle sleeve (6) top and be fixed with cap bag (8), the cap mouth of described cap bag (8) extends downward cage plate (7) position, cap bag (8) inner peripheral surface and axle sleeve (6) the outer circumferential face Spielpassung near axle sleeve (6).
2, air compression type seal-free submersible pump according to claim 1, it is characterized in that: the motor in the described electric motor units is the oil immersed type motor; The cap mouth of described cap bag (8) is outward flanging (9) structure radially; At the radially uniform eccentric groove that offers of the lower surface of described flange (9).
3, air compression type seal-free submersible pump according to claim 1 and 2 is characterized in that: be provided with float-ball type induction switch (10) at the gap location that is positioned between described cap bag (8) inner peripheral surface and axle sleeve (6) outer circumferential face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200701942U CN201187471Y (en) | 2008-04-25 | 2008-04-25 | Air compression type non-seal submersible pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200701942U CN201187471Y (en) | 2008-04-25 | 2008-04-25 | Air compression type non-seal submersible pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201187471Y true CN201187471Y (en) | 2009-01-28 |
Family
ID=40310492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200701942U Expired - Fee Related CN201187471Y (en) | 2008-04-25 | 2008-04-25 | Air compression type non-seal submersible pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201187471Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101994705A (en) * | 2010-12-08 | 2011-03-30 | 常铁榜 | Updraught multilayer isolated disc air compression seal-less diving pump |
| CN102062115A (en) * | 2011-01-21 | 2011-05-18 | 白雪峰 | Negative pressure mechanical sealing chamber of submersible pump |
-
2008
- 2008-04-25 CN CNU2008200701942U patent/CN201187471Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101994705A (en) * | 2010-12-08 | 2011-03-30 | 常铁榜 | Updraught multilayer isolated disc air compression seal-less diving pump |
| CN102062115A (en) * | 2011-01-21 | 2011-05-18 | 白雪峰 | Negative pressure mechanical sealing chamber of submersible pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090128 Termination date: 20120425 |