CN207526700U - A kind of novel rotor banding impeller submersed three-flow electric pump - Google Patents
A kind of novel rotor banding impeller submersed three-flow electric pump Download PDFInfo
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- CN207526700U CN207526700U CN201721676416.0U CN201721676416U CN207526700U CN 207526700 U CN207526700 U CN 207526700U CN 201721676416 U CN201721676416 U CN 201721676416U CN 207526700 U CN207526700 U CN 207526700U
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Abstract
The utility model discloses a kind of novel rotor banding impeller submersed three-flow electric pumps, stator and rotor including carrying stator winding, stator winding is immersed directly in the water of intake pool, is a kind of submersible pump of wet stator structure, is the water-fast winding of high insulation resistance bilayer congruent melting co-extrusion；Rotor is located at the lower section of stator, and a connecting shaft is welded on the inner cylinder face of rotor, weld the impeller blades being evenly distributed more than three pieces in the outer surface of connecting shaft, and impeller blade is divided into two group weldings in connecting shaft, the other end connection impeller hub of connecting shaft, impeller hub is set in by bearing on axis, is located in the middle part of the pump housing, float grease seal is arranged with respectively between impeller hub axial direction both ends and axis；The utility model uses wet type stator winding structure, stator winding uses the water-fast winding of high insulation resistance bilayer congruent melting co-extrusion, improves the electrical insulation strength of submersible motor, improves the reliability of complete machine, stator winding is directly contacted with ambient water, and ambient water can play cooling effect.
Description
Technical field
The utility model is related to a kind of submersible pump, more particularly to a kind of novel rotor banding impeller submersed three-flow electric pump,
Belong to submersible pump equipment technical field.
Background technology
Although common through-flow submersible electric pump water pump and motor coaxle, motor are dry-type submersible motors, flow is pumped
Outlet passage is flowed to by motor outer wall, it is not related with motor inside.
Common through-flow submersible electric pump：1. stator is dry construction, it is desirable that bore of stator is the space full of air, to protect
Hold its leakproofness, it is desirable that very high sealing technique, once seal failure winding, which is intake, may burn out stator winding, complicated,
Poor reliability；2. consume metal material about more 30%~50%；3. common through-flow submersible electric pump is made due to the resistance effect of motor
Obtaining diffuser has certain angle of flare, there is divergence loss, and pump efficiency is less than full through-flow submersible pump.
Utility model content
The utility model proposes a kind of novel rotor banding impeller submersed three-flow electric pumps, solve common in the prior art
The problem of through-flow submersible pump structure complexity, poor reliability, consumption metal material are mostly and pump efficiency is low.
In order to solve the above-mentioned technical problem, the utility model provides following technical solution：
A kind of novel rotor banding impeller submersed three-flow electric pump of the utility model, including carrying the stator of stator winding and turning
Son, water-inlet horn pipe with pilot blade and the water outlet oviduct with water outlet guide vane, the stator winding be immersed directly in into
It is a kind of submersible pump of wet stator structure in the water in pond, is the water-fast winding of high insulation resistance bilayer congruent melting co-extrusion；Described turn
Son is located at the lower section of stator, and a connecting shaft is welded on the inner cylinder face of the rotor, and the outer surface of the connecting shaft is welded
The impeller blades being evenly distributed more than three pieces is connect, and several described impeller blades are divided into two group weldings in connecting shaft, institute
The other end for stating connecting shaft is connected to impeller hub, and the impeller hub is set in by bearing on axis, described to be located in the pump housing
Middle part is arranged with float grease seal respectively between the impeller hub axial direction both ends and axis；The stator winding and rotor correspondence are matched
The pump housing of conjunction is equipped with annular flow channel, and pump housing lateral surface is equipped with the inlet and outlet of connection annular flow channel.
As a kind of optimal technical scheme of the utility model, the bearing includes one group of one, three bearing and is located at middle part
Journal bearing and two be located at both sides two-direction thrust bearings.
As a kind of optimal technical scheme of the utility model, the axis does not transmit torque, does not also rotate, on the rotor
Connecting shaft with several impeller blades is mounted on an axle through one group of bearing, and the axis at the impeller hub both ends, which is stretched, to be respectively charged into
In the centerbody of water-inlet horn pipe and the centerbody of water outlet oviduct, therefore the axis is one and only plays centering without passing
The mandrel of torque delivery.
The advantageous effect that the utility model is reached is：1st, the utility model use wet type stator winding structure, stator around
Group is improved the electrical insulation strength of submersible motor, is improved complete machine using the water-fast winding of high insulation resistance bilayer congruent melting co-extrusion
Reliability, stator winding directly contacts with ambient water, and ambient water can play cooling effect.
2nd, the power of impeller pumping liquid is that submersible motor rotating excitation field rotates generation by electromagnetic induction impeller,
Do not transmit torque.
3rd, connecting shaft of the rotor welding with two groups of impeller blades, can be such that impeller blade is rotated jointly with rotor, improve
The synchronism of rotor and impeller blade, and the use of two groups of impeller blades are equivalent to one leaf of increase on original impeller
Wheel strengthens the speed of impeller pumping liquid, further improves the working efficiency of submersible motor.
4th, journal bearing and two-direction thrust bearing are provided in internal rotor sealing bearing bore, rotor is rotation, and axis is
It not rotating, the effect of axis is to provide the positioning of rotor rotation center, and by axial force transmission to static fixed diffuser, and
It can bear the thrust of positive and negative two aspects.Since axis does not transmit torque, therefore the requirement to the strength and stiffness of axis substantially reduces.
5th, for the dynamic sealing of the bearing bore of rotation using float grease seal, compact-sized, sealing effect is good, reduces the axial direction of the pump housing
Length dimension.
Description of the drawings
Attached drawing is used to provide a further understanding of the present invention, and a part for constitution instruction, with this practicality
Novel embodiment for explaining the utility model, does not form the limitation to the utility model together.In the accompanying drawings：
Fig. 1 is the subjective structure diagram of the utility model；
In figure：1st, stator winding；2nd, rotor；3rd, connecting shaft；4th, impeller blade；5th, bearing；6th, float grease seal；7th, axis；8、
It is discharged guide vane；9th, impeller hub；10th, pilot blade.
Specific embodiment
The preferred embodiment of the utility model is illustrated below in conjunction with attached drawing, it should be understood that described herein excellent
Embodiment is selected to be only used for describing and explaining the present invention, is not used to limit the utility model.
Embodiment 1
As shown in Figure 1, the utility model provides a kind of novel rotor banding impeller submersed three-flow electric pump, including carrying stator
The stator of winding 1 and rotor 2, water-inlet horn pipe with pilot blade 10 and the water outlet oviduct with water outlet guide vane 8, stator around
Group 1 is immersed directly in the water of intake pool, is a kind of submersible pump of wet stator structure, is high insulation resistance bilayer congruent melting co-extrusion
Water-fast winding；Rotor 2 is located at the lower section of stator, and a connecting shaft 3, the appearance of connecting shaft 3 are welded on the inner cylinder face of rotor 2
The impeller blades 4 being evenly distributed more than three pieces is welded in face, and it is two group weldings in connecting shaft 3 that several impeller blades 4, which are divided to,
On, the other end of connecting shaft 3 is connected to impeller hub 9, and impeller hub 9 is set in by bearing 5 on axis 7, and axis 7 is set in the pump housing
Portion is arranged with float grease seal 6 respectively between the axial both ends of impeller hub 9 and axis 7；The pump of 2 corresponding matching of stator winding 1 and rotor
Body is equipped with annular flow channel, and pump housing lateral surface is equipped with the inlet and outlet of connection annular flow channel.
Bearing 5 includes one group of three bearing, 5 one journal bearings for being located at middle part and two bidirectional propulsions for being located at both sides
Bearing.
Axis 7 does not transmit torque, does not also rotate, and the connecting shaft 3 with several impeller blades 4 is through one group of bearing 5 on rotor 2
On axis 7, the axis at 9 both ends of impeller hub stretches the centerbody of the centerbody for being respectively charged into water-inlet horn pipe and water outlet oviduct
In, therefore axis 7 is one and only plays mandrel of the centering without transmitting torque.
Specifically, after stator winding 1 powers on, stator generates rotating excitation field, rotor 2 is driven to revolve by electromagnetic induction
Turn, because connecting shaft 3 welds together with 2 inner circle of rotor, two welded in connecting shaft 3 group impeller blade 4 is also with rotor 2
Rotation, impeller blade 4 directly pump liquid, and the use of two groups of impeller blades 4, and being equivalent on original impeller increases by one
Impeller strengthens the speed of impeller pumping liquid, since the torque that driving rotor 2 rotates directly is driven by stator rotating excitation field
What rotor 2 generated, therefore axis 7 does not transmit torque, and motor and water pump is made to be truly realized and be combined into one, it greatly simplifies and finishes
Structure.
1st, the utility model uses wet type stator winding structure, and stator winding 1 uses high insulation resistance bilayer congruent melting co-extrusion
Water-fast winding improves the electrical insulation strength of submersible motor, improves the reliability of complete machine, and stator winding 1 is directly and environment
Water contacts, and ambient water can play cooling effect.
2nd, the power of impeller pumping liquid is that submersible motor rotating excitation field rotates generation by electromagnetic induction impeller,
Do not transmit torque.
3rd, connecting shaft 3 of the welding of rotor 2 with two groups of impeller blades 4, can be such that impeller blade 4 is rotated jointly with rotor 2,
The synchronism of rotor 2 and impeller blade 4, and the use of two groups of impeller blades 4 are improved, being equivalent to increases on original impeller
One impeller strengthens the speed of impeller pumping liquid, further improves the working efficiency of submersible motor.
4th, journal bearing and two-direction thrust bearing are provided in 2 inner sealing bearing bore of rotor, rotor 2 is to rotate, axis 7
It does not rotate, the effect of axis 7 is to provide the positioning of 2 rotation center of rotor, and by axial force transmission to static fixed diffuser
On, and the thrust of positive and negative two aspects can be born.Since axis 7 does not transmit torque, therefore the requirement to the strength and stiffness of axis 7 is big
It is big to reduce.
5th, for the dynamic sealing of the bearing bore of rotation using float grease seal 6, compact-sized, sealing effect is good, reduces the axis of the pump housing
To length dimension.
Finally it should be noted that：The above descriptions are merely preferred embodiments of the present invention, is not limited to this
Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art
For, it can still modify to the technical solution recorded in foregoing embodiments or to which part technical characteristic
Carry out equivalent replacement.Within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on,
It should be included within the scope of protection of this utility model.
Claims (3)
1. a kind of novel rotor banding impeller submersed three-flow electric pump, including carrying stator winding（1）Stator and rotor（2）, band
There is pilot blade（10）Water-inlet horn pipe and with water outlet guide vane（8）Water outlet oviduct, it is characterised in that：The stator winding
（1）It is immersed directly in the water of intake pool, is a kind of submersible pump of wet stator structure, be high insulation resistance bilayer congruent melting co-extrusion
Water-fast winding；The rotor（2）Positioned at the lower section of stator, and the rotor（2）Inner cylinder face on weld a connecting shaft
（3）, the connecting shaft（3）Outer surface weld the more than three pieces impeller blade being evenly distributed（4）, and several described leaves
Impeller blade（4）It is divided into two group weldings in connecting shaft（3）On, the connecting shaft（3）The other end be connected to impeller hub（9）, institute
State impeller hub（9）Pass through bearing（5）It is set in axis（7）On, the axis（7）In the middle part of the pump housing, the impeller hub（9）Axis
To both ends and axis（7）Between be arranged with float grease seal respectively（6）；The stator winding（1）And rotor（2）The pump housing of corresponding matching
Annular flow channel is equipped with, pump housing lateral surface is equipped with the inlet and outlet of connection annular flow channel.
A kind of 2. novel rotor banding impeller submersed three-flow electric pump according to claim 1, which is characterized in that the bearing
（5）Including one group of three bearing（5）One journal bearing for being located at middle part and two two-direction thrust bearings for being located at both sides.
A kind of 3. novel rotor banding impeller submersed three-flow electric pump according to claim 1, which is characterized in that the axis
（7）Torque is not transmitted, is not also rotated, the rotor（2）It is upper to carry several impeller blades（4）Connecting shaft（3）Through one group of axis
It holds（5）Mounted on axis（7）On, the impeller hub（9）The axis at both ends stretches the centerbody for being respectively charged into water-inlet horn pipe and water outlet
In the centerbody of oviduct, therefore the axis（7）It is one and only plays mandrel of the centering without transmitting torque.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721676416.0U CN207526700U (en) | 2017-12-06 | 2017-12-06 | A kind of novel rotor banding impeller submersed three-flow electric pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721676416.0U CN207526700U (en) | 2017-12-06 | 2017-12-06 | A kind of novel rotor banding impeller submersed three-flow electric pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207526700U true CN207526700U (en) | 2018-06-22 |
Family
ID=62577604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721676416.0U Active CN207526700U (en) | 2017-12-06 | 2017-12-06 | A kind of novel rotor banding impeller submersed three-flow electric pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207526700U (en) |
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2017
- 2017-12-06 CN CN201721676416.0U patent/CN207526700U/en active Active
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