CN101922456A - Magnetic-gear high temperature-resistant high-speed magnetic pump - Google Patents
Magnetic-gear high temperature-resistant high-speed magnetic pump Download PDFInfo
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- CN101922456A CN101922456A CN 201010149939 CN201010149939A CN101922456A CN 101922456 A CN101922456 A CN 101922456A CN 201010149939 CN201010149939 CN 201010149939 CN 201010149939 A CN201010149939 A CN 201010149939A CN 101922456 A CN101922456 A CN 101922456A
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Abstract
The invention discloses a magnetic-gear high temperature-resistant high-speed magnetic pump relating to the technical field of transmission part in mechanical engineering. In the invention, a magnetic gear and an asynchronous magnetic gear are skillfully combined together as the transmission part in the high-speed magnetic pump and share a middle rotor assembly (III) without using a mechanical speed-changing structure, the magnetic gear is adopted for carrying out speed change so that the rotary speed of the pump can be improved, and the highest rotary speed of the pump can reach about 15000 r/min; and the high-speed magnetic pump can realize the effect of no leakage and achieves the purpose of conveying high-temperature media.
Description
Technical field
The present invention relates to the drive technology field in the mechanical engineering, it combines magnetic-gear and asynchronous magnetic couplings cleverly, can realize the change of velocity ratio, is applicable to the high-speed magnetic pump of high temperature resistant requirement.
Background technique
Magnetic drives is a kind of novel drive technology, the magnetic force that utilizes permanent-magnet material or electromagnet to produce, the transmission that comes realizable force or moment of torsion.Compare with mechanical transmission, the advantage of magnetic drives is very outstanding, as: reduce friction, raise the efficiency, vibration isolation, the physical separation etc. of overload protection, input shaft and output shaft automatically.In magnetic drives, extensive use at present be magnetic coupling, and the another kind of structural type of magnetic drives---magnetic-gear seldom is applied in engineering, mainly is because the moment of torsion that traditional magnetic-gear can provide is very low, does not reach the demand on the engineering.Magnetic-gear can also realize changing the purpose of rotating speed except the advantage that has magnetic drives, if combine with other magnetic drives then can reduce even remove mechanical speed change mechanism in the structure.2004, Englishman K.Atalla and D.Howe have proposed high-performance magnetism powershift gear structure, it is made up of inside and outside rotor and the stator that is placed in the middle of two rotors, and its torque-transfer capability is compared raising greatly with traditional magnetic-gear, even can compare favourably with mechanical gear.Therefore, how the high-performance magnetism powershift gear is applied to also just become popular problem in the engineering.
The magnetic coupling of high temperature resistant magnetic drive pump is made up of inside and outside rotor, internal rotor does not use permanent magnet and adopts the mouse cage type structure that is similar to motor, utilize the electromagnetic induction principle operation, separate with separation sleeve between the permanent magnet of external rotor and the high temperature media, so can not produce high temperature demagnetization phenomenon.Therefore demagnetization problem when its appearance has solved the conveying high temperature media of traditional magnetic drive pump is called as high temperature resistant magnetic drive pump.
For high temperature resistant magnetic drive pump, if realize running up, then need to add a cover gear, if adopt mechanical speed change, the fretting wear of mechanical gear box, vibration and noise all can make decrease in efficiency, stability in the entire mechanism reduce so.
Summary of the invention
The purpose of this invention is to provide a kind of magnetic drive pump---magnetic-gear high temperature-resistant high-speed magnetic pump.It combines magnetic-gear and asynchronous magnetic couplings cleverly, do not use the mechanical speed change structure, and adopt magnetic-gear to carry out speed change, can improve the rotating speed of pump, its rotating speed is the highest can be reached about 15000r/min, leak free effect can be realized, and the purpose of carrying high temperature media can be reached.And in application process, because some structural similarity of the magnetic coupling in magnetic-gear and the magnetic drive pump, in conjunction with can a shared part wherein in the process of application, thereby can reduce integrally-built volume and quality.But in application process, how a plurality of rotors are carried out combination, how the structure of the common sparing of magnetic-gear and magnetic coupling designs, and these all are the problems that will need in both cohesive process to solve.
The present invention includes: the pump housing, drive part, motor.Wherein, the pump housing adopts the pump housing of common high speed pump, and motor can be selected according to concrete parameter, no longer describes here.Its drive part core not of the present invention, it is made up of stator assembly (I), external rotor assembly (II), rotor assembly (III), internal rotor assembly (IV).External rotor assembly (II) is connected with input shaft by flat key, and input shaft connects with motor, by motor drives and rotation; Internal rotor assembly (IV) is connected with output shaft by flat key, and output shaft drives pump housing rotation; Rotor assembly (III) is placed on the input shaft by bearing.Stator assembly (I) comprises shell (2), adjustable magnetic steel disc (7) and separation sleeve (9), separation sleeve (9) is positioned between rotor (III) assembly and the internal rotor assembly (IV), be fixed on the shell (2), be used to isolate the medium of transmission, adjustable magnetic steel disc (7) utilizes soft magnetic material to manufacture long strip, quantity is R, is fixed in uniformly on the sidewall of shell; External rotor assembly (II) comprises external rotor matrix (3) and first permanent magnet (8), and first permanent magnet (8) glues by the N utmost point, the alternate tight arrangement of S utmost point even number and is contained on external rotor matrix (3) internal surface, and the magnetic pole logarithm is P
1Rotor (III) assembly comprises rotor matrix (4) and second permanent magnet (11), and having quantity on the rotor matrix (4) is 2P
2Groove, permanent magnet by the N utmost point, S utmost point even number is alternate is embedded in the groove, the magnetic pole logarithm is P
2P
1, R, P
2Between the pass be R=P
1+ P
2Internal rotor assembly (IV) comprises internal rotor matrix (5) and sliver (6); Internal rotor matrix (5) has some grooves on the solid cylinder, then sliver is embedded wherein, forms the cage-shaped structure that is similar to rotor.Wherein, external rotor assembly (II), rotor assembly (III) can form the magnetic-gear structure with adjustable magnetic steel disc (7), rotor assembly (III), internal rotor assembly (IV) and separation sleeve (9) can form the magnetic coupling in the high temperature resistant magnetic drive pump, both are shared rotor assembly (III), and its structural type has obtained further simplification.And because shared rotor assembly (III), the magnetic pole logarithm P of second permanent magnet (11)
1By R and P
2Determine that the groove number on the internal rotor sliver should be according to the method for design of electrical motor by P
1Determine.
Drive part in the above-mentioned magnetic-gear high temperature-resistant high-speed magnetic pump, it is characterized in that: with high-performance magnetism powershift gear and high temperature resistant asynchronous magnetic couplings combination, as the drive part in the magnetic-gear high temperature-resistant high-speed magnetic pump, both shared rotor assemblies (III), with it as wherein a part.
Drive part in the above-mentioned magnetic-gear high temperature-resistant high-speed magnetic pump, it is characterized in that: external rotor assembly (II) comprises external rotor matrix (3) and permanent magnet (8), permanent magnet glues by the N utmost point, the alternate tight arrangement of S utmost point even number and is contained on the external rotor internal surface, and the magnetic pole logarithm is P
1
Drive part in the above-mentioned magnetic-gear high temperature-resistant high-speed magnetic pump is characterized in that: adjustable magnetic steel disc (7) utilizes soft magnetic material to manufacture long strip, and quantity is R, is fixed in uniformly on the sidewall of shell;
Drive part in the above-mentioned magnetic-gear high temperature-resistant high-speed magnetic pump is characterized in that: rotor (III) assembly comprises rotor matrix (4) and permanent magnet (8), and having quantity on the rotor matrix (4) is 2P
2Groove, permanent magnet by the N utmost point, S utmost point even number is alternate is embedded in the groove, the magnetic pole logarithm is P
2
Drive part in the above-mentioned magnetic-gear high temperature-resistant high-speed magnetic pump is characterized in that: P
1, R, P
2Between the pass be R=P
1+ P
2
Drive part in the above-mentioned magnetic-gear high temperature-resistant high-speed magnetic pump is characterized in that: internal rotor assembly (IV) comprises internal rotor matrix (5) and sliver (6); Internal rotor matrix (5) has some grooves on the solid cylinder, then sliver is embedded wherein, forms the cage-shaped structure that is similar to rotor.
Working principle: when external rotor assembly (II) rotated, (the magnetic pole logarithm was P to permanent magnet
1) by the adjustable magnetic steel disc (7) in the stator assembly (I) (quantity is R) magnetic field modulation one-tenth to be had the magnetic pole logarithm be P for the rotating magnetic field that produces
2, and the rotating magnetic field that changes of rotating speed, thereby the rotating speed of rotor assembly (III) is changed, if P
2＞P
1, then the rotating speed of rotor improves, and its velocity ratio is P
1:-P
2, negative sign represents that direction is opposite.The rotation of the permanent magnet on the rotor can produce a rotating magnetic field, makes the sliver on the internal rotor produce induction current, produces rotation thereby drive internal rotor.Internal rotor links with turbine, can reach the effect of fed sheet of a media.Owing to separate with separation sleeve between internal rotor and the rotor, can reach the effect of static seal, can play the effect of sealing fully, and separation sleeve can make liquid and permanent magnet separate, thereby can be owing to the too high magnetic property that has influence on permanent magnet of the temperature of medium when carrying high temperature media.According to the rotating speed that the required rotating speed of high speed pump and motor provide, ignore speed discrepancy less between rotor and the internal rotor, required velocity ratio can be obtained, thereby P can be obtained
1, P
1And the numerical value of R.
Advantage of the present invention is: it combines magnetic-gear and asynchronous magnetic couplings cleverly, as the drive part of magnetic drive pump, as the external rotor of magnetic coupling, makes structure more compact the internal rotor of magnetic-gear.Compare with the common high speed pump that passes through mechanical speed change, can reduce the size of structure greatly, simultaneously, can reduce friction and wear effectively, improve transmission efficiency.
Description of drawings
Below in conjunction with drawings and Examples drive part of the present invention is described further
Fig. 1 is the magnetic drive pump overall construction drawing
Fig. 2 is the drive part structural drawing
Fig. 3 is the drive part sectional drawing
Label among the figure is represented respectively: 1, input shaft; 2, shell; 3, external rotor matrix; 4, rotor matrix; 5, internal rotor matrix; 6, sliver; 7, adjustable magnetic steel disc; 8, permanent magnet; 9, separation sleeve; 10, output shaft 11, second permanent magnet
I, stator assembly II, external rotor assembly III, rotor assembly IV, internal rotor assembly
Embodiment:
General structure of the present invention as shown in Figure 1, this device comprises: the pump housing, drive part, motor.Wherein, the pump housing adopts common high speed pump, and motor is selected according to parameter, and its drive part comprises: stator assembly (I), external rotor (II), rotor assembly (III), internal rotor assembly (IV).External rotor (II) is connected with input shaft by flat key; Internal rotor assembly (IV) is connected with output shaft by flat key, and rotor assembly (III) is placed on the input shaft by bearing.
The concrete structure of drive part is: stator assembly (I) comprises shell (2), adjustable magnetic steel disc (7) and separation sleeve (9), and adjustable magnetic steel disc quantity is R; The external rotor assembly comprises external rotor matrix (3) and permanent magnet (8), and permanent magnet glues by the N utmost point, the alternate tight arrangement of S utmost point even number and is contained on the external rotor internal surface, and the magnetic pole logarithm is P
1The rotor assembly comprises rotor matrix (4) and permanent magnet (8), and having quantity on the rotor matrix (4) is 2P
2Groove, permanent magnet by the N utmost point, S utmost point even number is alternate is embedded in the groove, the magnetic pole logarithm is P
2P
1, R, P
2Between the pass be R=P
1+ P
2Internal rotor assembly (IV) comprises internal rotor matrix (5) and sliver (6); Internal rotor matrix (5) has some grooves on the solid cylinder, then sliver is embedded wherein, forms the cage-shaped structure that is similar to rotor.
Claims (4)
1. magnetic gear high temperature-resistant high-speed magnetic pump, comprise the pump housing, drive part, motor, it is characterized in that: with high-performance magnetism powershift gear and high temperature resistant asynchronous magnetic couplings combination, as the drive part in the described high-speed magnetic pump, both shared rotor assemblies (III).
2. the described magnetic gear high temperature-resistant high-speed magnetic pump of claim 1, it is characterized in that: drive part is made up of stator assembly (I), external rotor assembly (II), rotor assembly (III) and internal rotor assembly (IV); Stator assembly (I) comprises shell (2), adjustable magnetic steel disc (7) and separation sleeve (9), and adjustable magnetic steel disc (7) utilizes soft magnetic material to manufacture long strip and is fixed on uniformly on the sidewall of shell (2); External rotor assembly (II) comprises external rotor matrix (3) and first permanent magnet (8), and first permanent magnet (8) glues by the N utmost point, the alternate tight arrangement of S utmost point even number and is contained on external rotor matrix (3) internal surface; Rotor (III) assembly comprises rotor matrix (4) and second permanent magnet (11), and rotor matrix (4) is gone up fluting, second permanent magnet (11) by the N utmost point, S utmost point even number is alternate is embedded in the groove; Internal rotor assembly (IV) comprises internal rotor matrix (5) and sliver (6); Internal rotor matrix (5) is a solid cylinder, has the groove of some quantity on the cylindrical body, then sliver (6) is embedded wherein, forms the cage-shaped structure that is similar to rotor; Wherein, external rotor assembly (II), rotor assembly (III) form the magnetic-gear structure with adjustable magnetic steel disc (7), rotor assembly (III), internal rotor assembly (IV) and separation sleeve (9) form the magnetic coupling in the high temperature resistant magnetic drive pump, magnetic-gear structure and magnetic coupling be in conjunction with as the drive part in the described magnetic-gear high temperature-resistant high-speed magnetic pump, both shared rotor assemblies (III).
3. the described magnetic gear high temperature-resistant high-speed magnetic pump of claim 1, it is characterized in that: adjustable magnetic steel disc quantity is R, the magnetic pole logarithm of the permanent magnet on the external rotor internal surface (8) is P
1, having quantity on the rotor matrix (4) is 2P
2Groove, the magnetic pole logarithm that is embedded in the permanent magnet (8) in the groove is P
2, R=P
1+ P
2
4. the described magnetic gear high temperature-resistant high-speed magnetic pump of claim 1, it is characterized in that: external rotor assembly (II) is connected with input shaft by flat key, and input shaft connects with motor, by motor drives and rotation; Internal rotor assembly (IV) is connected with output shaft by flat key, and output shaft drives pump housing rotation; Rotor assembly (III) is placed on the input shaft by bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101499396A CN101922456B (en) | 2010-04-16 | 2010-04-16 | Magnetic-gear high temperature-resistant high-speed magnetic pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101499396A CN101922456B (en) | 2010-04-16 | 2010-04-16 | Magnetic-gear high temperature-resistant high-speed magnetic pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101922456A true CN101922456A (en) | 2010-12-22 |
| CN101922456B CN101922456B (en) | 2012-02-15 |
Family
ID=43337584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101499396A Expired - Fee Related CN101922456B (en) | 2010-04-16 | 2010-04-16 | Magnetic-gear high temperature-resistant high-speed magnetic pump |
Country Status (1)
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|---|---|
| CN (1) | CN101922456B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434467A (en) * | 2011-11-09 | 2012-05-02 | 上海电机学院 | Speed changing magnetic pump |
| CN102954004A (en) * | 2012-10-30 | 2013-03-06 | 上海电机学院 | Double-cage rotor magnetic pump |
| CN102963418A (en) * | 2012-11-05 | 2013-03-13 | 无锡新大力电机有限公司 | Variable frequency steering driving device of three-phase motor |
| CN103388587A (en) * | 2012-05-08 | 2013-11-13 | 边文录 | Method for eliminating pressure difference of pump line of water injection system by magnetic coupler |
| US9841026B2 (en) | 2011-03-15 | 2017-12-12 | Aker Solutions As | Subsea pressure booster |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5378124A (en) * | 1993-06-07 | 1995-01-03 | Maytag Corporation | Method and means for assembling a pump and motor |
| CN2675909Y (en) * | 2004-01-19 | 2005-02-02 | 蔡国华 | Plastic magnetic pump |
| CN1928368A (en) * | 2006-10-20 | 2007-03-14 | 蔡国华 | Magnetically-actuated chemical flow-process pump |
| US7241247B1 (en) * | 2005-06-21 | 2007-07-10 | Torque-Traction Technologies, Llc. | Torque coupling with control valve |
-
2010
- 2010-04-16 CN CN2010101499396A patent/CN101922456B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5378124A (en) * | 1993-06-07 | 1995-01-03 | Maytag Corporation | Method and means for assembling a pump and motor |
| CN2675909Y (en) * | 2004-01-19 | 2005-02-02 | 蔡国华 | Plastic magnetic pump |
| US7241247B1 (en) * | 2005-06-21 | 2007-07-10 | Torque-Traction Technologies, Llc. | Torque coupling with control valve |
| CN1928368A (en) * | 2006-10-20 | 2007-03-14 | 蔡国华 | Magnetically-actuated chemical flow-process pump |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9841026B2 (en) | 2011-03-15 | 2017-12-12 | Aker Solutions As | Subsea pressure booster |
| CN102434467A (en) * | 2011-11-09 | 2012-05-02 | 上海电机学院 | Speed changing magnetic pump |
| CN103388587A (en) * | 2012-05-08 | 2013-11-13 | 边文录 | Method for eliminating pressure difference of pump line of water injection system by magnetic coupler |
| CN102954004A (en) * | 2012-10-30 | 2013-03-06 | 上海电机学院 | Double-cage rotor magnetic pump |
| CN102963418A (en) * | 2012-11-05 | 2013-03-13 | 无锡新大力电机有限公司 | Variable frequency steering driving device of three-phase motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101922456B (en) | 2012-02-15 |
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Granted publication date: 20120215 Termination date: 20180416 |