CN106640677A - Permanent magnetic circulating pump with improved rotor structure - Google Patents
Permanent magnetic circulating pump with improved rotor structure Download PDFInfo
- Publication number
- CN106640677A CN106640677A CN201610929992.5A CN201610929992A CN106640677A CN 106640677 A CN106640677 A CN 106640677A CN 201610929992 A CN201610929992 A CN 201610929992A CN 106640677 A CN106640677 A CN 106640677A
- Authority
- CN
- China
- Prior art keywords
- impeller
- rotor
- circulating pump
- component
- pressure sleeve
- 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
- F04D29/00—Details, component parts, or accessories
- F04D29/007—Details, component parts, or accessories especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/086—Sealings especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/20—Mounting rotors on shafts
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to a permanent magnetic circulating pump with an improved rotor structure. The problems of connection of an impeller and a rotor through a rotating shaft are solved. According to the technical scheme, the impeller is arranged on the rotating shaft, the axis of the rotating shaft coincides with the axis of a suction sleeve assembly and the axis of a pressure sleeve assembly, the rotor arranged on a motor is arranged on the rim of a hub of the impeller, and the rotor drives the impeller to rotate. The permanent magnetic circulating pump with the improved rotor structure has the effects that the rotating shaft of the impeller only has a supporting function and does not transmit torsion, correspondingly, the requirement for the strength of the rotating shaft is lowered, and the cost can be lowered.
Description
Technical field
The present invention relates to a kind of permanent magnetism circulating pump for improving rotor structure.
Background technology
Rosette is set on existing circulating pump（For the electrical connection of motor）, the rosette be arranged on stator case carry on the back
To the axial side of pump case.Rosette generally also includes motor electronic device, such as converter.Existing circulating pump mainly also includes
Pump case with scution bush and pressure sleeve, the impeller of pump being arranged in pump case, the motor of driven pump impeller, by electricity
The rotating shaft that motivation drives carries impeller of pump.The stator of surrounding rotor is arranged in electric machine casing, towards pump case on electric machine casing
Side there is flange or similar connecting element, electric machine casing, particularly stator case are by the connecting element and pump case
It is connected.
Scution bush in this circulating pump is connected to motor casing with pressure sleeve by flange or similar connecting element
The side of body；Impeller is centrifugal impeller, is arranged in pump case body, and the axis direction of its axis and scution bush and pressure sleeve hangs down
Directly, impeller and rotor typically by armature spindle come transmitting torque.
The content of the invention
It is an object of the invention to solve the problems referred to above of prior art presence and provide a kind of improvement rotor structure forever
Magnetic cycle pump, the scheme overlapped with scution bush component and pressure sleeve arrangement axis respectively using the axis of impeller shaft, by
Rotor directly drives impeller, it is to avoid by armature spindle come transmitting torque, makes each modular construction connection and reasonable arrangement, and simplifies part, no
Only be conducive to the rationalization of external structure, be also beneficial to improve operational reliability, improve service life, reduce maintenance rate, meanwhile,
Impeller shaft only plays supporting role, does not transmit torsion, and the intensity requirement of correspondence rotating shaft decreases, is also beneficial to reduce into
This.
What the above-mentioned technical purpose of the present invention was mainly solved by the following technical programs：The permanent magnetism for improving rotor structure is followed
Ring pump, including the motor of scution bush component, pressure sleeve component, impeller and driving impeller, the impeller is arranged on the suction
Enter between thimble assembly and the pressure sleeve component, it is characterised in that the impeller is arranged in a rotating shaft, the rotating shaft
Axis overlaps respectively with the scution bush component and pressure sleeve arrangement axis, and the rotor on the motor is arranged on the leaf
On the wheel rim of wheel wheel hub, the wheel rotation is driven by rotor.Using impeller shaft axis respectively with scution bush component and
The scheme that pressure sleeve arrangement axis overlap, directly drives impeller, it is to avoid by armature spindle come transmitting torque by rotor, makes each portion
Part reasonable structural arrangement, and simplify part, the rationalization of external structure is not only contributed to, it is also beneficial to improve operational reliability,
Service life is improved, maintenance rate is reduced, meanwhile, impeller shaft only plays supporting role, does not transmit torsion, the intensity of correspondence rotating shaft
Requirement decreases, and is also beneficial to reduces cost.
Used as further improving and supplementing to above-mentioned technical proposal, the present invention adopts following technical measures：The wheel hub
Sliding bearing is set and rotating shaft between, and the sliding bearing forms friction pair with the wheel hub.The setting of sliding bearing, main mesh
Be impeller is normally rotated.
In order to improve the service life of rotor, assembling is also convenient for, the rotor seal is described on the wheel rim of the impeller
Permanent magnet on rotor is circumferentially torsionally arranged on the wheel rim of impeller along impeller.
The two ends of the wheel rim are respectively provided with defining flange, the width of the spacing of defining flange described in two and the rotor
Degree matches, for limiting rotor axial play.
The two ends of the rotating shaft are separately positioned on the scution bush component and pressure sleeve component, the impeller difference
Between the scution bush component, pressure sleeve component with cooperation at, at the cooperation arrange separator.Make to be removed in electronics
Miscellaneous part outside rotor is all isolated with liquid, and rotor can be with submergence in a liquid.
The electrical axis direction arranges installation through-hole, and the scution bush component and pressure sleeve component insert the peace
Dress through hole, the impeller is placed in the installation through-hole, the separator be arranged on scution bush component, pressure sleeve component and
The periphery of impeller, and isolate the interior contact of scution bush component, pressure sleeve component and impeller and motor through hole.
In order to protect rotor, rotor normal rotation is made, be also beneficial to improve rotor service life, outside the described rotor
Surface arranges protection sleeve.
The device have the advantages that：1st, using impeller shaft axis respectively with scution bush component and pressure sleeve
The scheme that arrangement axis overlap, directly drives impeller, it is to avoid by armature spindle come transmitting torque by rotor, makes each modular construction cloth
Put rationally, and simplify part, not only contribute to the rationalization of external structure, be also beneficial to improve operational reliability, raising is used
In the life-span, reduce maintenance rate.2nd, impeller shaft only plays supporting role, does not transmit torsion, and the intensity requirement of correspondence rotating shaft has dropped
It is low, it is also beneficial to reduces cost.3rd, the setting of separator, prevents liquid from entering motor internal and flowing to outside motor and the pump housing.
4th, rotor seal can make rotor drive wheel rotation on the wheel rim of the impeller, on the one hand, on the other hand, rotor be carried out
Sealing, prevents rotor from entering liquid or impurity.5th, in order to prevent rotor axial play, even depart from impeller, the wheel rim
Two ends be respectively provided with defining flange, the spacing of defining flange described in two matches with the width of the rotor, for limit turn
Sub- axial float.
Description of the drawings
Fig. 1 is a kind of cross section structure diagram of the present invention.
Fig. 2 is a kind of cross section structure diagram of scution bush/pressure sleeve in the present invention.
Fig. 3 is a kind of structural representation of half electric machine casing in the present invention.
Fig. 4 is a kind of structural representation of separator in the present invention.
Fig. 5 is a kind of cross section structure diagram that impeller encapsulates permanent magnet in the present invention.
Fig. 6 is a kind of structural representation of permanent magnet in the present invention.
Fig. 7 is a kind of structural representation when omitting permanent magnet in the present invention after injection molding impeller and permanent magnet.
Specific embodiment
Below by embodiment, and accompanying drawing is combined, technical scheme is described in further detail.
Embodiment：Circulating pump, as shown in figure 1, it includes scution bush component 1, pressure sleeve component 2, impeller 4 and drives
The motor 3 of movable vane wheel, the impeller 4 is arranged between the scution bush component and the pressure sleeve component.The motor
Axis direction arranges installation through-hole, and the scution bush component 1 and pressure sleeve component 2 insert the installation through-hole, the leaf
Wheel 4 is placed in the installation through-hole, and the two ends of the rotating shaft of the impeller 4 are separately positioned on the scution bush component and pressure sleeve
On component, the axis of the rotating shaft of the impeller 4 respectively with the scution bush component 1 and the dead in line of pressure sleeve component 2, it is described
Rotor 8 on motor is arranged on the wheel rim of the impeller 4, and the rotor 8 is arranged along the circumferencial direction of the impeller 4, by rotor 8
The impeller 4 is driven to rotate.Overlapped with scution bush component and pressure sleeve arrangement axis respectively using the axis of impeller shaft
Scheme, impeller is directly driven by rotor, it is to avoid by armature spindle come transmitting torque, make each modular construction connection and reasonable arrangement, and letter
Change part, not only contribute to the rationalization of external structure, be also beneficial to improve operational reliability, improve service life, reduce dimension
Rate is repaiied, meanwhile, impeller shaft only plays supporting role, does not transmit torsion, and the intensity requirement of correspondence rotating shaft decreases, also favorably
In reduces cost.
The impeller 4 has respectively junction, the junction between the scution bush component, pressure sleeve component
Separator 7 is set, and on the wheel rim of the impeller, motor 3 is wet operation motor for the rotor seal, and it includes electric machine casing 5,
The stator 6 and rotor 8 being arranged in electric machine casing, the permanent magnet 9 on rotor 8 is circumferentially torsionally arranged on impeller along impeller 4
On wheel rim 10, impeller 4 and permanent magnet 9 form a whole, and are in the pilot blade of scution bush component 1 and pressure sleeve component 2
Between 16 and rear guide vane 17.The setting of separator, prevents liquid from entering motor internal and flowing to outside motor and the pump housing.Rotor is close
It is enclosed on the wheel rim of the impeller, rotor on the one hand can be made to drive wheel rotation, on the other hand, rotor is sealed, prevents
Rotation stop enters liquid or impurity.Under normal circumstances, impeller is moulding, and rotor can be with injection molding packaging in leaf when impeller is produced
On wheel rim, it is also possible in injection molding packaging rotor on the impeller that injection is completed.In the present embodiment, impeller 4 and permanent magnet 9 are logical
Cross injection to be attached.
Impeller 4 is a kind of aial flow impeller, can be rotatably disposed in impeller axle 11 around axis X 33, by circumferential along impeller 4
The permanent magnet 9 being torsionally arranged on the wheel rim 10 of impeller is rotated.Impeller hub 12 is provided with sliding bearing 30, sliding axle
Hold 30 and form friction pair with 11 heart axle of impeller axle 11 being fixed on the support base of suction stator and pressure stator.
As shown in Fig. 1, Fig. 5 and Fig. 7, in order to prevent the axial float of rotor 8, even depart from impeller 4, the wheel rim
Two ends are respectively provided with defining flange 14, and the spacing of defining flange described in two matches with the width of the rotor, turn for limiting
Sub- axial float.
As shown in Figure 1 and Figure 5, in order to protect rotor, the rotor outer surface is arranged protects sleeve 15（Axially extend to
It is concordant with impeller two ends, preferably 304 rustless steel sleeves）.Protection sleeve can be encapsulated in inside moulding, it is also possible to be arranged on
Outside moulding, as a rule it is preferred with being arranged on outside moulding, as shown in Figure 5.The wheel rim 10 of the sleeve 15 and impeller, limit
Annular seal space is formed between the flange 14 of position, permanent magnet is sealed in into this sealing intracavity.
As shown in Figure 1 and Figure 4, the separator 7 is disrance sleeve, the disrance sleeve cover the impeller respectively with institute
The connecting portion between scution bush component, pressure sleeve component is stated, the rotor is arranged in the socket of the disrance sleeve.
Separator is between stator 6 and rotor 8, and it seals pipe 28 and for being fixed on electric machine casing two by rustless steel
The rustless steel sealing tube flange 27 at end is constituted, and sealing is realized by welding between pipe 28 and sealing tube flange 27, so that
Stator 6 and the liquid for being conveyed are spaced in outside sealing member, and rotor 8 is immersed in conveyed liquid.The sealing He of pipe flange 27
Sleeve pipe 18 forms seal groove 29 after assembling, and O-ring is arranged in the seal groove, and realization conveys the sealing in liquid and the external world.
As shown in figure 1, the scution bush component includes scution bush and is arranged on the inner suction stator of scution bush；
The pressure sleeve component includes pressure sleeve and is arranged on the inner pressure stator of pressure sleeve；The suction stator and pressure
Axis hole is respectively provided with stator, corresponding axis hole is inserted respectively at the two ends of the impeller shaft.
As depicted in figs. 1 and 2, the scution bush component includes scution bush and is arranged on the inner suction of scution bush
Stator 16；The pressure sleeve component includes pressure sleeve and is arranged on the inner pressure stator 17 of pressure sleeve；The suction
Axis hole is respectively provided with stator and pressure stator, corresponding axis hole is inserted respectively at the two ends of the impeller shaft.Impeller shaft with
Sliding bearing is set between impeller hub.
The inner of the scution bush arrange first and assemble groove structure 20, and the suction stator interference fit is placed in institute
State in the first assembling groove structure；The inner of the pressure sleeve arranges the second assembling groove structure, the pressure stator interference
What is coordinated is placed in the second assembling groove structure.
As shown in figure 1, scution bush component 1 includes scution bush 18 and installed in scution bush and towards the end of impeller
Suction stator 16.Sleeve pipe 18 is metal casting part, and the screw thread of installation is provided with away from one end of impeller in scution bush 18
19, the circular groove structure 20 for installing suction stator 16 is provided with towards one end of impeller in scution bush 18, in scution bush
There is the flange 21 being fixed on scution bush component 1 by screw on electric machine casing 5 in 18 stage casings part.Suction stator 16 is injection
Part, assembles in groove structure 20 with interference installed in scution bush 18 circular first, and on the wheel hub 22 of pilot blade axis hole is provided with
Support base, the end of impeller axle 11 is fixed on interference in the axis hole of the support base.Impeller is by being fixed on pilot blade and rear guide vane
The impeller axle 11 of wheel hub is supported.
With scution bush component 1 in mapping symmetrical structure, pressure stator 17 is also moulding to pressure sleeve component 2, interference
Ground is arranged in the circle second of sleeve pipe assembling groove structure, and on the wheel hub 23 of pressure stator 17 support base, leaf are again provided with
The other end of wheel shaft 11 is fixed on interference in the axis hole of the support base.
The first adpting flange 21 with evagination on the scution bush outer wall, has evagination on the pressure sleeve outer wall
The second adpting flange, first adpting flange and the second adpting flange are connected to the two of electric machine casing by connector respectively
End.Scution bush and pressure sleeve all have extension section at the two ends of electric machine casing.
As shown in figures 1 and 3, electric machine casing is made up of two metal halfs 24, and half shell is an outer wall belt radiating ribs
Cylindrical structure, its press-in stator one end have along more than outside diameter of cylinder flange I25, for connect two half shells 24；Separately
There is the flange II26 less than barrel bore one end, for the connection sealing adpting flange 21 of tube flange 27 and first.The interference of stator 6
Be fixed in electric machine casing 5.
As shown in Fig. 1, Fig. 5 and Fig. 7, permanent magnet is loop configuration（Annular, fan-shaped or other forms are can also be, at this
Loop configuration is preferably in embodiment）, and the iron core of stator 6 has identical height, and axially extends and stator core pair
Neat arrangement.The outer of its inwall is uniformly distributed some locating slots 31, and by being moulded on wheel rim 10 corresponding positioning is formed
The cooperation of salient point 32, locating slot and positioning convex point, it is possible to increase the positioning intensity between permanent magnet and impeller, reduces and relatively rotates
The appearance of phenomenon.To ensure the reliability of permanent magnet and the transmission of impeller moment of torsion.
The preferred embodiments of the present invention are the foregoing is only, the present invention is not limited to.In the above-described embodiments,
The present invention can have various modifications and variations.All any modifications within the spirit and principles in the present invention, made, equivalent are replaced
Change, improve, should be included within the scope of the present invention.
Claims (7)
1. the permanent magnetism circulating pump of rotor structure, including scution bush component, pressure sleeve component, impeller and driving impeller are improved
Motor, the impeller is arranged between the scution bush component and the pressure sleeve component, it is characterised in that the leaf
Wheel is arranged in a rotating shaft, and the axis of the rotating shaft overlaps respectively with the scution bush component and pressure sleeve arrangement axis,
Rotor on the motor is arranged on the wheel rim of the impeller hub, and by rotor the wheel rotation is driven.
2. the permanent magnetism circulating pump for improving rotor structure according to claim 1, it is characterised in that the wheel hub and rotating shaft it
Between sliding bearing is set, the sliding bearing and the wheel hub form friction pair.
3. it is according to claim 1 and 2 improve rotor structure permanent magnetism circulating pump, it is characterised in that the rotor seal exists
On the wheel rim of the impeller, the permanent magnet on the rotor is circumferentially torsionally arranged on the wheel rim of impeller along impeller.
4. it is according to claim 3 improve rotor structure permanent magnetism circulating pump, it is characterised in that the two of the wheel rim
End is respectively provided with defining flange, and the spacing of defining flange described in two matches with the width of the rotor, for limiting armature spindle
To play.
5. according to optional one in claim 1-4 improvement rotor structure permanent magnetism circulating pump, it is characterised in that it is described
The two ends of rotating shaft are separately positioned on the scution bush component and pressure sleeve component, and the impeller covers respectively with the suction
There is junction, the junction arranges separator between tube assembly, pressure sleeve component.
6. according to optional one in claim 5 improvement rotor structure permanent magnetism circulating pump, it is characterised in that the electricity
Machine axis direction arranges installation through-hole, and the scution bush component and pressure sleeve component insert the installation through-hole, the leaf
Wheel is placed in the installation through-hole.
7. it is according to claim 6 improve rotor structure permanent magnetism circulating pump, it is characterised in that outside the described rotor
Surface arranges protection sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610929992.5A CN106640677A (en) | 2016-10-31 | 2016-10-31 | Permanent magnetic circulating pump with improved rotor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610929992.5A CN106640677A (en) | 2016-10-31 | 2016-10-31 | Permanent magnetic circulating pump with improved rotor structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106640677A true CN106640677A (en) | 2017-05-10 |
Family
ID=58821983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610929992.5A Pending CN106640677A (en) | 2016-10-31 | 2016-10-31 | Permanent magnetic circulating pump with improved rotor structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106640677A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0332196U (en) * | 1989-08-08 | 1991-03-28 | ||
| JPH06193583A (en) * | 1992-12-07 | 1994-07-12 | Japan Servo Co Ltd | Permanent magnet rotor for canned motor pump |
| US5494413A (en) * | 1993-12-09 | 1996-02-27 | Westinghouse Electric Corporation | High speed fluid pump powered by an integral canned electrical motor |
| JP2000291583A (en) * | 1999-04-01 | 2000-10-17 | Matsushita Electric Ind Co Ltd | Motor for externally driven turbo-type fluid machine |
| WO2005061902A1 (en) * | 2003-12-22 | 2005-07-07 | Imp Pumps, D.O.O. | Hydraulic in-line axial-flow pump with a submerged rotor of an electric motor |
| JP2006118398A (en) * | 2004-10-20 | 2006-05-11 | Asmo Co Ltd | Fluid pump |
| CN103161734A (en) * | 2011-12-08 | 2013-06-19 | 德昌电机(深圳)有限公司 | Screw pump and boiler heat cycle system with same |
| CN103790837A (en) * | 2014-01-17 | 2014-05-14 | 苏州泰格动力机器有限公司 | Axial-flow type permanent magnet motor water pump |
| CN203617838U (en) * | 2012-11-07 | 2014-05-28 | 温特泵有限责任公司 | Pump for conveying medium |
| CN206668573U (en) * | 2016-10-31 | 2017-11-24 | 新界泵业集团股份有限公司 | Improve the permanent magnetism circulating pump of rotor structure |
-
2016
- 2016-10-31 CN CN201610929992.5A patent/CN106640677A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0332196U (en) * | 1989-08-08 | 1991-03-28 | ||
| JPH06193583A (en) * | 1992-12-07 | 1994-07-12 | Japan Servo Co Ltd | Permanent magnet rotor for canned motor pump |
| US5494413A (en) * | 1993-12-09 | 1996-02-27 | Westinghouse Electric Corporation | High speed fluid pump powered by an integral canned electrical motor |
| JP2000291583A (en) * | 1999-04-01 | 2000-10-17 | Matsushita Electric Ind Co Ltd | Motor for externally driven turbo-type fluid machine |
| WO2005061902A1 (en) * | 2003-12-22 | 2005-07-07 | Imp Pumps, D.O.O. | Hydraulic in-line axial-flow pump with a submerged rotor of an electric motor |
| JP2006118398A (en) * | 2004-10-20 | 2006-05-11 | Asmo Co Ltd | Fluid pump |
| CN103161734A (en) * | 2011-12-08 | 2013-06-19 | 德昌电机(深圳)有限公司 | Screw pump and boiler heat cycle system with same |
| CN203617838U (en) * | 2012-11-07 | 2014-05-28 | 温特泵有限责任公司 | Pump for conveying medium |
| CN103790837A (en) * | 2014-01-17 | 2014-05-14 | 苏州泰格动力机器有限公司 | Axial-flow type permanent magnet motor water pump |
| CN206668573U (en) * | 2016-10-31 | 2017-11-24 | 新界泵业集团股份有限公司 | Improve the permanent magnetism circulating pump of rotor structure |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170510 |
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| WD01 | Invention patent application deemed withdrawn after publication |