CN207588685U - A kind of improvement Halbach type magnetic gear devices - Google Patents
A kind of improvement Halbach type magnetic gear devices Download PDFInfo
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- CN207588685U CN207588685U CN201721346678.0U CN201721346678U CN207588685U CN 207588685 U CN207588685 U CN 207588685U CN 201721346678 U CN201721346678 U CN 201721346678U CN 207588685 U CN207588685 U CN 207588685U
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- permanent magnet
- outer rotor
- halbach
- magnetic gear
- improvement
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Abstract
A kind of improvement Halbach type magnetic gear devices, the device are followed successively by internal rotor yoke, internal rotor permanent-magnetic body, adjustable magnetic ring, outer rotor permanent magnet, outer rotor yoke from inside to outside.The internal rotor permanent-magnetic body is magnetized using Halbach, and outer rotor permanent magnet uses improved Halbach structure.The permanent magnet of outer layer radial polarised is done into the offset of outer rotor yoke direction, the place after offset close to outer layer air gap is filled up with iron teeth.Make arc-shaped in two corners of outer rotor permanent magnet.Since Halbach array has self-shileding magnetization characteristic, therefore magnetic field and outer rotor inside magnetic field are reinforced on the outside of internal rotor, the presence of outer rotor iron teeth is played the role of adjusting outer layer air-gap field, make air-gap field more towards sine, harmonic content is reduced, so as to improve the operation torque of magnetic gear.
Description
Technical field
The utility model is related to a kind of magnetic gear, specifically a kind of improvement Halbach type magnetic gear devices.
Background technology
Mechanical gear engages passing power between utilizing adjacent gear, is a kind of common transmission side in machinery and relevant industries
Formula, it solves the rotating speed and torque matching problem from tractor to mechanism loading.But with science and technology it is continuous by depth
Enter research, new technologies and materials continue to bring out, mechanical gear cannot meet requirement of the people for transmission system.Moreover
The friction of mechanical gear itself, lubrication, noise and the problems such as safeguarding, also largely limit further carrying for transmission performance
It is high.Magnetic gear comes into being, the defects of effectively preventing mechanical gear, obtains the extensive concern of domestic and foreign scholars.
Magnetic gear appears in early 20th century earliest, has applied for the patent of magnetic gear by B.Brukwici, structure and
Tradition machinery gear is similar, and torque is generated using magnetic field interaction.Limited to by conventional topologies structure and permanent magnet performance, it should
Magnetic gear permanent magnet utilization rate is extremely low, and this magnetic gear is simultaneously not affected by too many concern.With the continuous development of permanent-magnet material,
The 1940s, U.S. H.T.Faus scholar applied for the magnetic gear patent of ferrite permanent-magnet materials.Rare earth permanent magnet in recent years
The appearance of material rubidium iron boron, promotes the development of magnetic gear to a certain extent.2001, Univ Sheffield UK
K.Atallah and D.Howe is put forward for the first time the concentric type magnetic gear based on magnetic field modulation principle, this kind of magnetic gear is driving and driven
It is contactless and without lubrication between wheel, and with automatic overload protection.Therefore the concentric type magnetic gear within following a period of time
As the hot spot of domestic and foreign scholars' research.With the research that deepens continuously of magnetic field modulation principle, the magnetic gear based on the theory
It continues to develop.2005, the P.O.Rasmussen of Aalborg University of Denmark proposed a kind of magneticfocusing magnetic gear；2008
Year, associate professor Man Yongkui of Northeastern University proposes magnetic resistance-permanent magnetism magnetic gear；2014, the K.T.Chau religions of Hong Kong University
Award the novel magnetic gear for proposing a kind of transmission ratio-variable.
At present, have a numerous studies for magnetic gear, but magnetic gear there are still torque density it is relatively low the problem of, therefore
Domestic and international experts and scholars are dedicated to improving the torque density of permanent magnet utilization rate and magnetic gear device, more real so as to make it have
The application value on border.It can be seen that for the optimization design of magnetic gear structure, also needed further with improving magnetic gear torque
Research.
Invention content
For existing magnetic gear torque it is low the problem of, the utility model provide it is a kind of improvement Halbach type magnetism teeth
Wheel apparatus improves the transmission torque of magnetic gear.
The technical solution that the utility model is taken is：
A kind of improvement Halbach type magnetic gear devices, the device are followed successively by internal rotor yoke, internal rotor forever from inside to outside
Magnet, adjustable magnetic ring, outer rotor permanent magnet, outer rotor yoke.The internal rotor permanent-magnetic body is magnetized using Halbach, and outer rotor is forever
Magnet uses improved Halbach structure；Improved Halbach structure refers to be handed over by radially and tangentially polarized permanent magnet
For arrangement, the permanent magnet outer rotor yoke direction of radial polarised deviates.
The permanent magnet of outer layer radial polarised is done into the offset of outer rotor yoke direction, close to the place of outer layer air gap after offset
It is filled up with iron teeth.
Make arc-shaped in two corners of outer rotor permanent magnet.
The internal rotor yoke, internal rotor permanent-magnetic body form internal rotor.
The adjustable magnetic ring includes non-magnet material, silicon steel；Have respectively between adjustable magnetic ring and internal rotor yoke, outer rotor permanent magnet
Internal layer air gap, outer layer air gap.
The iron teeth, outer rotor permanent magnet, outer rotor iron core form outer rotor.
The utility model is a kind of to improve Halbach type magnetic gear devices, and advantage is：
1：Radial permanent magnet body is made into outer rotor yoke:Direction deviates, close to the place iron teeth of outer layer air gap after offset
The integrality to ensure magnetic gear is filled up, and iron teeth can play the role of adjusting outer layer air-gap field, make inside and outside layer air gap
Closer to sinusoidal, harmonic content reduction.
2：Arc-shaped is made into prominent two corners of outer permanent magnet, the corner of one side arc-shaped is easier and outer rotor
Suit, another aspect arc-shaped avoids causing more serious saturated phenomenon with outer rotor yoke.
3：By Ansoft softwares internally, outer layer air gap flux density and inner and outer Rotator are static and dynamic torque is calculated, and
It is compared with traditional Halbach types magnetic gear, the utility model magnetic gear has on air gap flux density and torque amplitude
Very big raising.Magnetic gear with magneto is combined, forms the output that compound machine realizes low speed high torque, in addition magnetic
Transmission has higher reliability compared with machine driving, before having a good application prospect as a kind of direct driving motor and widely developing
On the way, suitable for the occasion of low-speed high-torque.
Description of the drawings
Fig. 1 is the structure diagram of the utility model.
Fig. 2 is partial structural diagram at the A of Fig. 1.
Fig. 3 is that the internal layer air gap radial direction harmonic amplitude of the utility model compares figure.
Fig. 4 is that the tangential harmonic amplitude of internal layer air gap of the utility model compares figure.
Fig. 5 is that the outer layer air gap radial direction harmonic amplitude of the utility model compares figure.
Fig. 6 is that the tangential harmonic amplitude of outer layer air gap of the utility model compares figure.
Fig. 7 is that the internal rotor static torque of the utility model compares figure.
Fig. 8 is that the outer rotor static torque of the utility model compares figure.
Fig. 9 is that the internal rotor output torque of the utility model compares figure.
Figure 10 is that the outer rotor output torque of the utility model compares figure.
Specific embodiment
As shown in Figure 1 and Figure 2, a kind of improvement Halbach type magnetic gear devices, the device are followed successively by interior turn from inside to outside
Sub- yoke 1, internal rotor permanent-magnetic body 2, adjustable magnetic ring, outer rotor permanent magnet 8, outer rotor yoke 9.
The internal rotor permanent-magnetic body 2 is magnetized using Halbach array, and each magnetic pole is divided into four sections, the polarization of every section of magnetic pole
Direction is as shown in structure diagram.
Outer rotor permanent magnet 8 uses improved Halbach structure, by radially and tangentially polarized permanent magnet arrangement group
Into, the permanent magnet of outer layer radial polarised is done into 9 direction of outer rotor yoke and is deviated, the place use of close outer layer air gap 6 after offset
Iron teeth 7 is filled up.Make arc-shaped in 8 two corners of outer rotor permanent magnet.
The internal rotor yoke 1, internal rotor permanent-magnetic body 2 form internal rotor.
The adjustable magnetic ring includes non-magnet material 4, silicon steel 5；Divide between adjustable magnetic ring and internal rotor yoke 1, outer rotor permanent magnet 8
Not by having internal layer air gap 3, outer layer air gap 6.Inside and outside layer air-gap field, which is adjusted, using adjustable magnetic ring realizes that torque is transmitted.
The iron teeth 7, outer rotor permanent magnet 8, outer rotor iron core 9 form outer rotor.
Since Halbach array has self-shileding magnetization characteristic, magnetic field on the inside of magnetic field and outer rotor on the outside of internal rotor
It being reinforced, the presence of the iron teeth 7 of outer rotor is played the role of adjusting outer layer air-gap field, makes air-gap field more towards sine,
Harmonic content is reduced, so as to improve the operation torque of magnetic gear.
The utility model is using gearratio as 1:For 4.25 magnetic gear, establish tradition Halbach types magnetic gear with
Improve Halbach type magnetic gear models.Following table gives specific magnetic gear structural parameters.
1 magnetic gear structural parameters of table
As shown in Figure 3 and Figure 4, it compared with traditional Halbach types magnetic gear, improves Halbach types magnetic gear and improves
The fundamental voltage amplitude of internal layer radial direction flux density, and the tangential flux density fundamental voltage amplitude of internal layer is exactly the opposite.As shown in Figure 5 and Figure 6, iron teeth
Have in the presence of the harmonic content of the fundamental voltage amplitude for significantly improving outer layer air gap radially and tangentially flux density, and tangential flux density than traditional
It is reduced.
As shown in Figure 7 and Figure 8, fixed adjustable magnetic ring and low speed outer rotor, high speed internal rotor is with the speed up time of -425r/min
Needle rotates, so as to obtain inner and outer Rotator static torque oscillogram 6 and Fig. 7.It is seen that the static torque of inner and outer rotors
Waveform is sine wave, and reaches peak value when electrical angle is 90 °.Maximum static torque is the weight for weighing magnetic gear performance
Want parameter, as seen from the figure, the amplitude of traditional magnetic gear inner and outer Rotator static torque be respectively 65.17Nm and
276.4Nm, improved magnetic gear inner and outer Rotator static torque amplitude is respectively 73.82Nm and 313.6Nm.It is logical
It crosses the arrangement mode for changing outer rotor permanent magnet and increases iron teeth, magnetic gear is above carried than traditional magnetic gear in maximum static torque
It is high by 13.45%, and modified magnetic gear inner and outer rotors static torque ratio approximation meets gear ratio 1:4.25.
Fixed adjustable magnetic ring, enables outer rotor be rotated counterclockwise with 100r/min, and internal rotor is rotated clockwise with -425r/min,
Obtain the steady state torque of inner and outer rotors as shown in Figure 9 and Figure 10.Traditional or modified magnetic gear, output torque
Fluctuation range very little, approximate straight line.Can intuitively it find out from figure, traditional Halbach types internal rotor output torque exists
65.1Nm is fluctuated up and down, and outer rotor output torque fluctuates above and below 276.3Nm, and the gearratio of inner and outer rotors substantially meets
Gear ratio 1:4.25；Halbach type magnetic gear devices are improved, internal rotor output torque fluctuates above and below 73.5Nm, outer to turn
Sub- output torque fluctuates above and below 313.4Nm.Improved magnetic gear is more traditional to be improved in output torque
13.45%.As it can be seen that it improves the arrangement of outer rotor permanent magnet and increases the transmission torque that iron teeth is conducive to improve magnetic gear.
Claims (6)
1. a kind of improvement Halbach type magnetic gear devices, the device are followed successively by internal rotor yoke from inside to outside（1）, internal rotor
Permanent magnet（2）, adjustable magnetic ring, outer rotor permanent magnet（8）, outer rotor yoke（9）；It is characterized in that：The internal rotor permanent-magnetic body（2）
It is magnetized using Halbach, outer rotor permanent magnet（8）Using improved Halbach structure；Improved Halbach structure is
Finger is alternately arranged by radially and tangentially polarized permanent magnet, the permanent magnet outer rotor yoke direction offset of radial polarised.
2. a kind of improvement Halbach type magnetic gear devices according to claim 1, it is characterised in that：By outer layer radial direction pole
The permanent magnet of change makees outer rotor yoke（9）Direction deviates, close to outer layer air gap after offset（6）Place iron teeth（7）It fills up.
3. a kind of improvement Halbach type magnetic gear devices according to claim 1, it is characterised in that：Outer rotor permanent magnet
（8）Make arc-shaped in two corners.
4. a kind of improvement Halbach type magnetic gear devices according to claim 1, it is characterised in that：The internal rotor yoke
Iron（1）, internal rotor permanent-magnetic body（2）Form internal rotor.
5. a kind of improvement Halbach type magnetic gear devices according to claim 1, it is characterised in that：The adjustable magnetic ring packet
Include non-magnet material（4）, silicon steel（5）；Adjustable magnetic ring and internal rotor yoke（1）, outer rotor permanent magnet（8）Between have internal layer air gap respectively
（3）, outer layer air gap（6）.
6. a kind of improvement Halbach type magnetic gear devices according to claim 2, it is characterised in that：The iron teeth（7）、
Outer rotor permanent magnet（8）, outer rotor yoke（9）Form outer rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721346678.0U CN207588685U (en) | 2017-10-16 | 2017-10-16 | A kind of improvement Halbach type magnetic gear devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721346678.0U CN207588685U (en) | 2017-10-16 | 2017-10-16 | A kind of improvement Halbach type magnetic gear devices |
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| Publication Number | Publication Date |
|---|---|
| CN207588685U true CN207588685U (en) | 2018-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721346678.0U Expired - Fee Related CN207588685U (en) | 2017-10-16 | 2017-10-16 | A kind of improvement Halbach type magnetic gear devices |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107612281A (en) * | 2017-10-16 | 2018-01-19 | 三峡大学 | One kind improves Halbach type magnetic gear devices |
| CN109412385A (en) * | 2018-11-14 | 2019-03-01 | 江苏大学 | A kind of Halbach type array double-cylinder type Adjustuble speed magnetic mechanical couple |
| RU196343U1 (en) * | 2019-12-23 | 2020-02-26 | Андрей Борисович Захаренко | Halbach-style electric machine with rotor |
| RU2720233C1 (en) * | 2019-12-23 | 2020-04-28 | Андрей Борисович Захаренко | Electric machine with rotor made as per halbach circuit |
-
2017
- 2017-10-16 CN CN201721346678.0U patent/CN207588685U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107612281A (en) * | 2017-10-16 | 2018-01-19 | 三峡大学 | One kind improves Halbach type magnetic gear devices |
| CN107612281B (en) * | 2017-10-16 | 2023-12-22 | 三峡大学 | Improved Halbach type magnetic gear device |
| CN109412385A (en) * | 2018-11-14 | 2019-03-01 | 江苏大学 | A kind of Halbach type array double-cylinder type Adjustuble speed magnetic mechanical couple |
| RU196343U1 (en) * | 2019-12-23 | 2020-02-26 | Андрей Борисович Захаренко | Halbach-style electric machine with rotor |
| RU2720233C1 (en) * | 2019-12-23 | 2020-04-28 | Андрей Борисович Захаренко | Electric machine with rotor made as per halbach circuit |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180706 Termination date: 20191016 |
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| CF01 | Termination of patent right due to non-payment of annual fee |