CN108110992B - A kind of ring-like built-in type permanent-magnet eddy speed regulating device of translation stator - Google Patents
A kind of ring-like built-in type permanent-magnet eddy speed regulating device of translation stator Download PDFInfo
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- CN108110992B CN108110992B CN201711221252.7A CN201711221252A CN108110992B CN 108110992 B CN108110992 B CN 108110992B CN 201711221252 A CN201711221252 A CN 201711221252A CN 108110992 B CN108110992 B CN 108110992B
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K49/00—Dynamo-electric clutches; Dynamo-electric brakes
- H02K49/02—Dynamo-electric clutches; Dynamo-electric brakes of the asynchronous induction type
- H02K49/04—Dynamo-electric clutches; Dynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type
- H02K49/043—Dynamo-electric clutches; Dynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type with a radial airgap
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K49/00—Dynamo-electric clutches; Dynamo-electric brakes
- H02K49/10—Dynamo-electric clutches; Dynamo-electric brakes of the permanent-magnet type
- H02K49/102—Magnetic gearings, i.e. assembly of gears, linear or rotary, by which motion is magnetically transferred without physical contact
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K49/00—Dynamo-electric clutches; Dynamo-electric brakes
- H02K49/10—Dynamo-electric clutches; Dynamo-electric brakes of the permanent-magnet type
- H02K49/104—Magnetic couplings consisting of only two coaxial rotary elements, i.e. the driving element and the driven element
- H02K49/106—Magnetic couplings consisting of only two coaxial rotary elements, i.e. the driving element and the driven element with a radial air gap
Abstract
The invention discloses a kind of ring-like built-in type permanent-magnet eddy speed regulating devices of translation stator, the device includes the input shaft (1) and output shaft (2) being coaxially set, be coaxially set built-in type permanent-magnet rotor (3) on input shaft (1), the excircle of built-in p-m rotor (3) be coaxially set can axial translation track ring (4)；The conductor rotor that is coaxially set on output shaft (2) (5)；The conductor rotor is fixed on conductor rotor iron core by the good layers of copper of electric conductivity and is constituted, and on the inside of layers of copper face p-m rotor.The track ring is made of the good ferrimagnet of magnetic property, and is looped around on the outside of p-m rotor, and there are an air gaps between p-m rotor.The flexible modulation of air-gap field between p-m rotor and conductor rotor may be implemented by the variation of relative axial position between the irrotational track ring of control and p-m rotor in the present invention, final to realize wide speed regulating range operation.
Description
Technical field
The invention belongs to the technical fields of motor manufacture, are related to a kind of ring-like built-in type permanent-magnet eddy speed regulating of translation stator
Device.
Background technique
The permanent magnetic speed-adjusting technology developed rapidly as high performance permanent magnetic materials promote and apply is a kind of applied to original
New-type electric machine drive system variable speed energy saving technology between motivation and load.Speed-adjusting-type permanent-magnet coupler has good energy conservation effect
Fruit reduces operating cost, can also realize the function that the soft start of motor and soft stop stop.It may operate in it is inflammable and explosive,
In the adverse circumstances such as humidity, dust content height, and it is mechanical structure in itself, can adapt to that power grid quality is unstable, electric current becomes
Situations such as changing impact load.The history for having decades using oneself of permanent magnet transmission technology, its application are by magnetic field coupling, in fact
The non contact transmission of torque between existing prime mover and load.It is mainly used in chemical industry, petrochemical industry, coal cement, metallurgy steel
The motor driven systems variable speed energy saving of the high-power blower load of the pumps in many fields such as iron, naval vessel.
Axial flux structure (disc type) and radial flux can be divided into according to the main flux direction of permanent-magnet eddy current speed regulation device
Structure (cartridge type) two major classes.The permanent magnet speed regulation device of axial flux structure generallys use between adjustment magnet rotor and conductor rotor
Axial air-gap length controls air-gap field size, and then controls the speed of service of load-side.And the permanent magnetism of radial flux configurations
Eddy speed regulating device generallys use and changes the coupling area between conductor rotor and permanent magnetism magnet rotor to control turning for load-side
Speed.
There is considerable products application into industrial practice at present, some may be implemented to adjust the speed online.More than
The permanent-magnet eddy current speed regulation device of two kinds of structures is all needed through electric operator, and axially translated p-m rotor or conductor turn
Son.Since the difficulty of two rotors of adjustment position to axial is larger, particularly with axial arrangement, magnet rotor and conductor rotor it
Between there are sizable axial magnetic pulls.To which causing electric operator, structure is complicated, and requirement of mechanical strength is high, occupies
Spatial volume is relatively large.Therefore, it is necessary to carry out certain improvement to the adjustable magnetic mode of traditional permanent-magnet eddy current speed regulation device.
Summary of the invention
Technical problem: the technical problem to be solved in the present invention is to provide a kind of ring-like built-in type permanent-magnet vortex of translation stator to adjust
Speed variator, traditional permanent-magnet eddy current speed regulation device is by changing p-m rotor and conductor rotor relative axial position, realization device
Speed-regulating function.Structure is complicated for electric operator, and requirement of mechanical strength is high, and it is big that on-line velocity adjusts difficulty, stability and can
It is poor by property.
Technical solution: the ring-like built-in type permanent-magnet eddy speed regulating device of a kind of translation stator of the invention includes being coaxially set
Input shaft and output shaft, be coaxially set on input shaft built-in type permanent-magnet rotor, same in the excircle of built-in p-m rotor
Axis setting can axial translation track ring；Be coaxially set conductor rotor on output shaft；
Built-in type permanent-magnet rotor includes that the permanent magnet, multiple p-m rotor iron cores and fixed permanent magnetism of multiple cutting orientation magnetizings turn
The auxiliary knot on the inside of track ring is arranged in the supplementary structure of sub- iron core and permanent magnet, permanent magnet and p-m rotor iron core sequence alternate
On structure；
Conductor rotor includes layers of copper and conductor rotor iron core, and layers of copper is fixed on the periphery of conductor rotor iron core；Conductor turns
Sub- iron core is fixed on the periphery of output shaft, and conductor rotor is located in the p-m rotor iron core and permanent magnet in built-in type permanent-magnet rotor
Side.
Wherein,
Gas length and axial position are fixed between the built-in type permanent-magnet rotor and conductor rotor.
It is described gas length to immobilize between the track ring and p-m rotor of axial translation, and gas length Ying Jinke
It can be small.
During the axially translated covering p-m rotor of track ring, the permanent magnet flux of built-in type permanent-magnet rotor is determined
Subring short circuit, with the increase of stator ring cover p-m rotor area, the ability of track ring short circuit permanent magnet flux enhances, built-in
Air-gap field weakens between p-m rotor and conductor rotor, conversely, air-gap field enhances.
The track ring is overrided to form by silicon steel sheet along axial direction, to reduce track ring core loss.
The utility model has the advantages that reducing maintenance cost using the novel reducible operating mechanism structure of adjustable magnetic method, extends and use
In the service life, structure is simple, easy to operate, and online speed regulation is more reliable and more stable.In the case where given load torque, air-gap field
Change, results in the change of slip speed.Therefore, in the case that input speed is constant, with the translation of track ring axial direction, load
Flexible on-line control can be realized in speed.In addition, translation track ring needed for operating mechanism than translation conductor rotor or
The structure of operating mechanism needed for p-m rotor is simpler, and stability is higher, and requirement of mechanical strength is lower.
Detailed description of the invention
Fig. 1 is the diagrammatic cross-section that the ring-like built-in type permanent-magnet eddy speed regulating device of stator is translated in embodiment；
Fig. 2 is the two dimensional flux paths figure that the ring-like built-in type permanent-magnet eddy speed regulating device of stator is translated in embodiment；
Fig. 3 is the decomposition diagram of the embodiment translation ring-like built-in type permanent-magnet eddy speed regulating device three-dimensional structure of stator；
Wherein, input shaft 1, output shaft 2, built-in type permanent-magnet rotor 3, track ring 4, conductor rotor 5, permanent magnet 6, permanent magnetism turn
Sub- iron core 7, auxiliary body 8, layers of copper 9, conductor rotor iron core 10, conductor rotor auxiliary body 11, p-m rotor end heat release hole
12, conductor rotor end heat release hole 13, modulation magnetic circuit 14, main magnetic circuit 15, outside air gap 16.
Specific embodiment
The present invention will be further described with reference to the accompanying drawing.
As shown in figures 1 and 3, a kind of ring-like built-in type permanent-magnet eddy speed regulating device of translation stator, including what is be arranged concentrically
Input shaft 1 and output shaft 2, be radially successively arranged concentrically on input shaft 1 built-in type permanent-magnet rotor 3 and can axial translation determine
Subring 4, the conductor rotor 5 of 3 inside of setting face built-in type permanent-magnet rotor on output shaft 2.In addition, built-in type permanent-magnet rotor 3 with
There are air gaps as small as possible between track ring 4, and gas length and axis between built-in type permanent-magnet rotor 3 and conductor rotor 5
It immobilizes to relative position.
P-m rotor 3 is embedded in p-m rotor iron core 7 by the permanent magnet 6 of cutting orientation magnetizing, and by non-magnetic auxiliary body 8
It is fixed together with input shaft 1.In addition, as shown in figure 3, there are heat release holes 12 8 upper end of non-magnetic auxiliary body.
Conductor rotor 5 includes layers of copper 9 and conductor rotor iron core 10, and layers of copper 9 is fixed on conductor rotor iron core 10.Such as figure
Shown in 3, the fixed output shaft 2 of auxiliary body 11 and conductor rotor 5, and there are heat release holes 13 on the end cap of auxiliary body 11.
Track ring 4 can be translated along the axial direction of input shaft 1, and track ring 4 is not rotated with input shaft 1.As shown in Fig. 2,
Permanent magnet flux flows primarily through modulation 15 two magnetic flux paths of magnetic circuit 14 and main magnetic circuit.Magnetic circuit 14 is modulated, from permanent magnet 6s, warp
Cross p-m rotor iron core 7, outside air gap 16, track ring 4,6 other side of permanent magnet p-m rotor iron core 7, and with 6 structure of permanent magnet
At flux circuit；Main magnetic circuit 15, from permanent magnet 6s, by p-m rotor iron core 7, inside air gap, layers of copper 9, conductor rotor iron
The heart 10, layers of copper 9,6 other side of permanent magnet p-m rotor iron core 7, and with permanent magnet 6 constitute flux circuit.When track ring 4 is along axis
During translation, the permanent magnet flux of built-in type permanent-magnet rotor 3 is circulated by 4 short circuit of track ring along modulation magnetic circuit 14.With
Track ring 4 is moved along axial, and the area that track ring 4 covers built-in type permanent-magnet rotor 3 increases, and short-circuit effect enhancing passes through tune
The magnetic flux of magnetic circuit 14 processed increases, meanwhile, reduced by the magnetic flux of main magnetic circuit 15.Therefore, p-m rotor 3 and conductor rotor 5
Between air-gap field weaken.Conversely, the air-gap field between built-in type permanent-magnet rotor 3 and conductor rotor 5 enhances.
It is built-in when air-gap field decrease between p-m rotor 3 and conductor rotor 5 in the case where given load torque
Slip speed between p-m rotor 3 and conductor rotor 5 increases, and load-side speed reduces；Conversely, load-side speed rises.Cause
The flexible modulation of load-side speed may be implemented by axial translation track ring 4 in this.
Basic principle of the invention, main feature and advantage has been shown and described above.The technical staff of the industry should
Understand, the present invention is not limited to the above embodiments, and the above embodiments and description only describe originals of the invention
Reason, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes and improvements
It all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended claims and its equivalent
Boundary.
Claims (6)
1. a kind of ring-like built-in type permanent-magnet eddy speed regulating device of translation stator, it is characterised in that: the device includes being coaxially set
Input shaft (1) and output shaft (2), be coaxially set built-in type permanent-magnet rotor (3) on input shaft (1), turn in built-in type permanent-magnet
The excircle of sub (3) be coaxially set can axial translation track ring (4)；Be coaxially set conductor rotor on output shaft (2)
(5)；Axial position between built-in type permanent-magnet rotor (3) and conductor rotor (5) remains unchanged, and gas length is solid between them
It is fixed；Gas length between built-in type permanent-magnet rotor (3) and track ring (4) remains unchanged, still, track ring (4) with it is built-in
P-m rotor (3) relative axial position can be adjusted on demand；
Built-in type permanent-magnet rotor (3) includes the permanent magnet (6), multiple p-m rotor iron cores (7) and fixation of multiple cutting orientation magnetizings
The supplementary structure (8) of p-m rotor iron core (7) and permanent magnet (6), permanent magnet (6) and p-m rotor iron core (7) sequence alternate are set
It sets on the supplementary structure (8) on the inside of track ring (4)；Wherein, track ring (4) is by the good silicon steel sheet of magnetic property along axial folded
Pressure forms, it can be achieved that permanent magnet flux produced by built-in type permanent-magnet rotor (3) is by the function of track ring (4) short circuit, and can reduce and determine
The core loss of subring (4)；
Conductor rotor (5) includes layers of copper (9) and conductor rotor iron core (10), and layers of copper (9) is fixed on conductor rotor iron core (10)
Periphery；Conductor rotor iron core (10) is fixed on the periphery of output shaft (2), and conductor rotor (5) is located at built-in type permanent-magnet rotor (3)
On the inside of interior p-m rotor iron core (7) and permanent magnet (6)；Conductor rotor auxiliary body (11) is located at conductor rotor iron core (10)
It is other.
2. the ring-like built-in type permanent-magnet eddy speed regulating device of translation stator according to claim 1, it is characterised in that: in described
Gas length and axial position between formula p-m rotor (3) and conductor rotor (5) is set to fix.
3. the ring-like built-in type permanent-magnet eddy speed regulating device of translation stator according to claim 1, it is characterised in that: it is described can
Gas length immobilizes between the track ring (4) and built-in type permanent-magnet rotor (3) of axial translation, and gas length should be as far as possible
It is small.
4. the ring-like built-in type permanent-magnet eddy speed regulating device of translation stator according to claim 1, it is characterised in that: described fixed
During the axially translated covering built-in type permanent-magnet rotor (3) of subring (4), the permanent magnet flux quilt of built-in type permanent-magnet rotor (3)
Track ring (4) short circuit, with the increase of track ring (4) covering p-m rotor area, the ability of track ring (4) short circuit permanent magnet flux
Enhancing, air-gap field weakens between built-in type permanent-magnet rotor (3) and conductor rotor (5), conversely, air-gap field enhances.
5. the ring-like built-in type permanent-magnet eddy speed regulating device of translation stator according to claim 1, it is characterised in that: described
Conductor rotor auxiliary body (11) is equipped with conductor rotor end heat release hole (13).
6. the ring-like built-in type permanent-magnet eddy speed regulating device of translation stator according to claim 1, it is characterised in that: described
Supplementary structure (8) is equipped with p-m rotor end heat release hole (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711221252.7A CN108110992B (en) | 2017-11-29 | 2017-11-29 | A kind of ring-like built-in type permanent-magnet eddy speed regulating device of translation stator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711221252.7A CN108110992B (en) | 2017-11-29 | 2017-11-29 | A kind of ring-like built-in type permanent-magnet eddy speed regulating device of translation stator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108110992A CN108110992A (en) | 2018-06-01 |
| CN108110992B true CN108110992B (en) | 2019-10-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711221252.7A Active CN108110992B (en) | 2017-11-29 | 2017-11-29 | A kind of ring-like built-in type permanent-magnet eddy speed regulating device of translation stator |
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| CN (1) | CN108110992B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108964387B (en) * | 2018-06-06 | 2019-10-11 | 东南大学 | The double-deck standard squirrel cage conductor rotor high torque density permanent-magnet speed governor |
| CN113890305B (en) * | 2021-12-06 | 2022-04-05 | 东北大学 | Liquid cooling air gap radial adjustable spherical permanent magnet eddy current retarder |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3770092B2 (en) * | 2001-02-16 | 2006-04-26 | いすゞ自動車株式会社 | Eddy current reducer |
| CN200976539Y (en) * | 2006-07-07 | 2007-11-14 | 马小安 | Magnetically actuated and clutching device |
| CN104811000B (en) * | 2015-04-15 | 2017-12-05 | 苏州威莫磁力传动技术有限公司 | A kind of permanent-magnet speed governor |
| CN106911243B (en) * | 2017-03-20 | 2019-03-05 | 东南大学 | A kind of ring-like permanent-magnet eddy current speed regulation device of translation adjustable magnetic |
| CN106877627B (en) * | 2017-03-20 | 2019-05-17 | 东南大学 | A kind of disc type translation permanent-magnet stator type permanent-magnet eddy current speed regulation device |
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2017
- 2017-11-29 CN CN201711221252.7A patent/CN108110992B/en active Active
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| CN108110992A (en) | 2018-06-01 |
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