CN101787978A - Novel fully-tubular electric submerged pump with shaft incapable of transferring torque - Google Patents

Novel fully-tubular electric submerged pump with shaft incapable of transferring torque Download PDF

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Publication number
CN101787978A
CN101787978A CN200910228537A CN200910228537A CN101787978A CN 101787978 A CN101787978 A CN 101787978A CN 200910228537 A CN200910228537 A CN 200910228537A CN 200910228537 A CN200910228537 A CN 200910228537A CN 101787978 A CN101787978 A CN 101787978A
Authority
CN
China
Prior art keywords
impeller
motor
rotor
motor rotor
axle
Prior art date
Application number
CN200910228537A
Other languages
Chinese (zh)
Inventor
马恩成
邓悌康
古智生
陈大为
Original Assignee
天津甘泉集团有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 天津甘泉集团有限公司 filed Critical 天津甘泉集团有限公司
Priority to CN200910228537A priority Critical patent/CN101787978A/en
Publication of CN101787978A publication Critical patent/CN101787978A/en

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Abstract

The invention relates to a novel fully-tubular electric submerged pump with a shaft incapable of transferring torque; a submerged motor adopts wet stator winding structure, the impeller of a water pump is arranged in the inner cavity of a motor rotor, the vanes of the impeller are integrally welded with the inner circle of the motor rotor assembly by silicon steel plates through stacking, a radial bearing and a bidirectional thrust bearing are arranged in the inner seal bearing cavity of the motor rotor with the impeller, the motor rotor with the impeller is rotational and the shaft cannot rotate, and the inner rotational bearing cavity adopts dynamic seal structure. The invention has the beneficial effects that: the winding wire improve the electric insulation intensity of the electric submerged motor, so the reliability of the whole pump is improved, the vanes of the impeller are integrally welded with the inner circle of the motor rotor assembled by silicon steel plates through stacking to reduce the outer diameter of the motor rotor and improve the motor efficiency, the strength and rigidity requirements for the shaft are greatly reduced, the reliability is improved, the dynamic seal structure is compact and the seal effect is good, the axial length also can be reduced to realize compact structure, and the material consumption is also reduced.

Description

A kind of axle is the novel full-tubular Submerged Motor Pumps of transmitting torque not
Technical field
The present invention relates to a kind of through-flow submersible electric pump, particularly relate to the not novel full-tubular Submerged Motor Pumps of transmitting torque of a kind of axle.
Background technique
At present, the water pump of existing common through-flow submersible electric pump and motor coaxle on the market, motor is a dry-type submersible motor, and pumps water stream flows to outlet passage through the motor outer wall, and it doesn't matter with motor internal.Common through-flow submersible electric pump has following deficiency: poor reliability, and motor cavity is easily intake, and causes that easily winding burns phenomenon; Because the motor diameter restriction, water outlet place of water pump has an angle of flare, causes certain divergence loss, has influence on the efficient of water pump; The Submerged Motor Pumps axial length is long, and length is 2100~6300mm, is not easy to be mounted to forms such as gate pump; Complex structure, not easy-maintaining.
Summary of the invention
Purpose of the present invention is exactly in order to solve above-mentioned deficiency of the prior art, and the not novel full-tubular Submerged Motor Pumps of transmitting torque of a kind of axle is provided, this kind electric pump safety reliability is greatly improved, and has improved motor, pump efficiency, and compact structure, materials are saved.
In order to achieve the above object, the technical solution used in the present invention is: a kind of axle is the novel full-tubular Submerged Motor Pumps of transmitting torque not, it is characterized in that: submersible motor adopts wet stator winding structure, the impeller of water pump places the inner chamber of rotor, the circle weldering is as a whole in the blade of impeller and the rotor that is formed by the silicon steel plate closed assembly, the power of impeller pumping liquid is that the submersible motor rotating magnetic field produces by the rotation of electromagnetic induction impeller, axle is transmitting torque not, have in the rotor inner sealing bearing bore of impeller and be provided with radial bearing and doubledirection thrust bearing, the rotor that has impeller rotates, axle does not rotate, and adopts movable sealing structure in the bearing bore of rotation.
Above-mentioned wet stator winding structure directly contacts with ambient water, and ambient water plays cooling action, and the extraordinary water proof winding wires that adopts the double-deck congruent melting co-extrusion technology of high insulation resistance is as staor winding;
The effect of above-mentioned axle provides rotor rotating center location, and axial force transmission to the diffuser of stationary fixing, and the thrust that can bear positive and negative both direction;
Above-mentioned movable sealing structure adopts float grease seal or mechanical seal.
Beneficial effect of the present invention: winding wire has improved the electric insulation intensity of submersible motor, therefore improved the reliability of complete machine, in the blade of impeller and the rotor that forms by the silicon steel plate closed assembly circle weldering as a whole, to reduce the rotor external diameter, improve electric efficiency, intensity and rigidity requirement to axle reduce greatly, have improved reliability, the movable sealing structure compactness, good sealing effect, can also reduce axial length dimension, make compact structure, materials are saved.
Description of drawings
Fig. 1 is a structural representation of the present invention
Embodiment
Its structure of the present invention is as shown in Figure 1: a kind of axle is the novel full-tubular Submerged Motor Pumps of transmitting torque not, its critical piece is: submersible motor adopts wet staor winding (1) structure, the impeller of water pump (3) places the inner chamber of rotor (2), the blade of impeller (3) is as a whole with the interior circle weldering of the rotor (2) that is formed by the silicon steel plate closed assembly, the power of impeller (3) pumping liquid is that the submersible motor rotating magnetic field produces by electromagnetic induction impeller (3) rotation, axle (6) is transmitting torque not, have in rotor (2) the inner sealing bearing bore of impeller (3) and be provided with radial bearing and doubledirection thrust bearing, the rotor that has impeller (3) rotates, axle does not rotate, and adopts movable sealing structure (5) in the bearing bore of rotation.
The staor winding of submersible motor (1) adopts the extraordinary water proof winding wires of the double-deck congruent melting co-extrusion technology of high insulation resistance, and this winding wire has improved the electric insulation intensity of submersible motor, has therefore improved the reliability of complete machine.
The water abrasion consumption of motor is directly proportional with five powers of rotor (2) external diameter, in order to reduce the water abrasion consumption of motor, reducing rotor (2) external diameter as much as possible is effective method, the present invention has cancelled the water pump vane case body for this reason, circle in the blade of impeller (3) and the rotor that is formed by the silicon steel plate closed assembly is welded as a whole, serve as impeller housing by rotor (2), corresponding the reducing of rotor (2) external diameter, water abrasion consumption also reduces thereupon, and electric efficiency obtains certain raising.
Impeller (3) is as a whole with the interior circle weldering of rotor (2), impeller (3) is not directly installed on the axle (6), but be connected with axle (6) by the bearing (4) that is installed in the wheel hub, therefore the power of pumping liquid is that the submersible motor rotating magnetic field produces by electromagnetic induction impeller (3) rotation, be that bearing (4) outer ring is with impeller (3) and rotor (2) rotation, and bearing (4) inner ring does not all rotate with axle (6), so axle (6) is a transmitting torque not, and the intensity of axle (6) and the requirement of rigidity reduced greatly.
Have in rotor (2) the inner sealing bearing bore of impeller (3) and be provided with radial bearing (4) and doubledirection thrust bearing (4), the rotor (2) that has impeller rotates, axle (6) does not rotate, the effect of axle (6) provides the centralized positioning of rotor (2) rotation, and axial force transmission to the diffuser (7) of stationary fixing, and the thrust that can bear positive and negative both direction.
The sealing of Submerged Motor Pumps bearing chamber adopts mechanical seal to be aided with the structural type of outside framework oil seal usually, this structural type is very harsh to the requirement of service condition, be difficult to control, and outside framework oil seal can on axle, grind after running a period of time zanjon, outside framework oil seal just no longer works afterwards, the present invention adopts float grease seal (5), this oil seal structure is simple, and the desertification ability is strong, good sealing effect, the more important thing is its compact structure, can effectively shorten axial length dimension.
When preventing rotor rotation, current wash away winding overhang, have designed protection against erosion labyrinth (10).The isolation layer that directly wash away winding of rotor (2) end face current under centrifugal action limited in this protection against erosion labyrinth (10), improves reliability.

Claims (3)

1. an axle novel full-tubular Submerged Motor Pumps of transmitting torque not, it is characterized in that: submersible motor adopts wet stator winding structure, the impeller of water pump places the inner chamber of rotor, the circle weldering is as a whole in the blade of impeller and the rotor that is formed by the silicon steel plate closed assembly, have in the rotor inner sealing bearing bore of impeller and be provided with radial bearing and doubledirection thrust bearing, adopt movable sealing structure in the bearing bore of rotation.
2. a kind of axle according to claim 1 is the novel full-tubular Submerged Motor Pumps of transmitting torque not, and it is characterized in that: described stator winding structure adopts high insulated water proof winding wires as staor winding.
3. a kind of axle according to claim 1 is the novel full-tubular Submerged Motor Pumps of transmitting torque not, and it is characterized in that: described movable sealing structure adopts float grease seal or mechanical seal.
CN200910228537A 2009-11-13 2009-11-13 Novel fully-tubular electric submerged pump with shaft incapable of transferring torque CN101787978A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200910228537A CN101787978A (en) 2009-11-13 2009-11-13 Novel fully-tubular electric submerged pump with shaft incapable of transferring torque

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200910228537A CN101787978A (en) 2009-11-13 2009-11-13 Novel fully-tubular electric submerged pump with shaft incapable of transferring torque

Publications (1)

Publication Number Publication Date
CN101787978A true CN101787978A (en) 2010-07-28

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN200910228537A CN101787978A (en) 2009-11-13 2009-11-13 Novel fully-tubular electric submerged pump with shaft incapable of transferring torque

Country Status (1)

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CN (1) CN101787978A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103452866A (en) * 2013-09-17 2013-12-18 合肥恒大江海泵业股份有限公司 Submersible axial-flow pump with inbuilt impeller
CN105114332A (en) * 2015-08-03 2015-12-02 天津甘泉集团有限公司 Efficient all-crossflow submersible electric pump and application method thereof
CN105485027A (en) * 2016-01-14 2016-04-13 江苏亚太泵阀有限公司 Short-wheelbase sand-prevention horizontal submersible tubular type axis-flow pump
CN105715615A (en) * 2014-12-03 2016-06-29 中国飞机强度研究所 Connecting device
CN106351852A (en) * 2016-11-14 2017-01-25 合肥恒大江海泵业股份有限公司 Vane wheel built-in submersible electric pump with stator coil protection sleeve
CN106968962A (en) * 2017-03-31 2017-07-21 门立山 A kind of axial-flow pump for conveying high temperature fluid
CN107605755A (en) * 2017-09-14 2018-01-19 合肥恒大江海泵业股份有限公司 A kind of impeller built-in mixed flow immersible electric pump
CN108518346A (en) * 2018-02-11 2018-09-11 王立 The multipurpose of electromechanical one pumps

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103452866A (en) * 2013-09-17 2013-12-18 合肥恒大江海泵业股份有限公司 Submersible axial-flow pump with inbuilt impeller
CN103452866B (en) * 2013-09-17 2016-06-29 合肥恒大江海泵业股份有限公司 A kind of submersible axial-flow pump with inbuilt impeller
CN105715615A (en) * 2014-12-03 2016-06-29 中国飞机强度研究所 Connecting device
CN105114332A (en) * 2015-08-03 2015-12-02 天津甘泉集团有限公司 Efficient all-crossflow submersible electric pump and application method thereof
CN105485027A (en) * 2016-01-14 2016-04-13 江苏亚太泵阀有限公司 Short-wheelbase sand-prevention horizontal submersible tubular type axis-flow pump
CN106351852A (en) * 2016-11-14 2017-01-25 合肥恒大江海泵业股份有限公司 Vane wheel built-in submersible electric pump with stator coil protection sleeve
CN106351852B (en) * 2016-11-14 2019-05-07 合肥恒大江海泵业股份有限公司 A kind of impeller built-in submersible pump with stator coil protective case
CN106968962A (en) * 2017-03-31 2017-07-21 门立山 A kind of axial-flow pump for conveying high temperature fluid
CN107605755A (en) * 2017-09-14 2018-01-19 合肥恒大江海泵业股份有限公司 A kind of impeller built-in mixed flow immersible electric pump
CN108518346A (en) * 2018-02-11 2018-09-11 王立 The multipurpose of electromechanical one pumps

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Open date: 20100728