CN105553227A - Axial movement magnetic shielding type permanent-magnet speed controller - Google Patents

Axial movement magnetic shielding type permanent-magnet speed controller Download PDF

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Publication number
CN105553227A
CN105553227A CN201610084230.XA CN201610084230A CN105553227A CN 105553227 A CN105553227 A CN 105553227A CN 201610084230 A CN201610084230 A CN 201610084230A CN 105553227 A CN105553227 A CN 105553227A
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CN
China
Prior art keywords
rotor
permanent
magnetic screen
move axially
magnet
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Granted
Application number
CN201610084230.XA
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Chinese (zh)
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CN105553227B (en
Inventor
梁清波
张领强
柳志明
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Tianjin Guangxing Magnetic Technology Co ltd
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Tianjin Ji Xuan Energy Saving Technology Co
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Priority to CN201610084230.XA priority Critical patent/CN105553227B/en
Publication of CN105553227A publication Critical patent/CN105553227A/en
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Publication of CN105553227B publication Critical patent/CN105553227B/en
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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K49/00Dynamo-electric clutches; Dynamo-electric brakes
    • H02K49/10Dynamo-electric clutches; Dynamo-electric brakes of the permanent-magnet type
    • H02K49/104Magnetic couplings consisting of only two coaxial rotary elements, i.e. the driving element and the driven element
    • H02K49/106Magnetic 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 belongs to the technical field of permanent-magnet speed control, and in particular relates to an axial movement magnetic shielding type permanent-magnet speed controller. The axial movement magnetic shielding type permanent-magnet speed controller comprises a conductor rotor and a permanent-magnet rotor; an air gap exists between the conductor rotor and the permanent-magnet rotor; the axial movement magnetic shielding type permanent-magnet speed controller is characterized by further comprising an axial movement magnetic shielding mechanism; the axial movement magnetic shielding mechanism is arranged between the conductor rotor and the permanent-magnet rotor; and the axial movement magnetic shielding mechanism can axially move corresponding to the permanent-magnet rotor. The axial movement magnetic shielding type permanent-magnet speed controller disclosed by the invention has the benefits that: the axial position of the axial shielding structure is adjusted by using a magnetic shielding principle; the friction force generated by driving torque when the permanent-magnet rotor drives a load is eliminated; compared with adjustment of the whole permanent-magnet rotor, the axial force to be overcome is greatly reduced; the output torque of a magnetic flux adjustment structure is greatly reduced; and the whole adjustment structure is simpler and smaller in size.

Description

Move axially magnetic screen formula permanent-magnet speed governor
Technical field
The invention belongs to permanent magnetic speed-adjusting technical field, particularly relate to one and move axially magnetic screen formula permanent-magnet speed governor.
Background technology
In the industries such as large-scale mining, petrochemical industry, electric power and metallurgy, due to the needs of energy-conserving and environment-protective, the application of permanent magnet speed regulation device is more and more extensive.Permanent magnet speed regulation device can adapt to various adverse circumstances, comprises that voltage ripple of power network is large, harmonic wave is serious, the place such as inflammable and explosive, moist, dust, can the rotating speed of on-line control load, to meet running needs, realize variable speed energy saving, speed adjustable range 0-98%, fractional energy savings 10% ~ 65%.During work, the conductor rotor of driven by motor permanent-magnet speed governor is rotated, the magnetic induction line that on copper conductor cutting p-m rotor in conductor rotor, permanent magnet sends produces eddy current, eddy current produces induced field, induced field and the magnetic Field Coupling effect of permanent magnetism body source and then produce moment of torsion, the dynamic load of p-m rotor band is rotated, and because permanent magnetic speed-adjusting technology is simple, reliable, service life of equipment is long; Without Electromagnetic Interference problem; So much the speed regulating device in the place that condition is difficult are replaced by permanent-magnet speed governor gradually.
Existing permanent-magnet speed governor mainly contains tubular permanent-magnet speed governor and desk permanent-magnet speed regulator, tubular speed regulator is by regulating tubular p-m rotor and tubular conductor rotor at the relative position of axis direction, to change the live part of p-m rotor and conductor rotor coupling, and then adjustment torque, this is beneficial to the movement carried out between p-m rotor and conductor rotor to axial with regard to the larger axial space needed; And the adjustment of desk permanent-magnet speed regulator by regulating the air gap between dish type p-m rotor and conductor rotor to carry out torque, and then realize the speed governing to load.Also need larger axial space to carry out the adjustment of air gap, product axial dimension is large, brings very large inconvenience to Reconstruction in field; During speed governing, p-m rotor needs mobile, and equipment arm length, vibration greatly, easily damages bearing, equipment dependability is bad; During adjustment, because p-m rotor quality, moment of inertia are impacted greatly, easily; Adjusting device load, regulating shaft holding capacity are excessive fragile; Vibration equipment is large, it is high to generate heat, permanent magnet easily lost efficacy; Regulate during air gap simultaneously and also need the effect overcoming larger permanent magnetic attraction.Application is difficult to like this in the place of some limited space.
Chinese patent CN104811000A provides a kind of permanent-magnet speed governor, comprise the conductor rotor of tubular, p-m rotor and conductive magnetic yoke, described conductor rotor, described p-m rotor and described conductive magnetic yoke are coaxially arranged, described p-m rotor is positioned at the inner chamber of described conductor rotor, radial air gap is provided with between described p-m rotor and described conductor rotor, described conductive magnetic yoke is positioned at the outside of described p-m rotor, described conductive magnetic yoke can axial motion, by the magnetic field intensity regulating the spacing of described conductive magnetic yoke and described p-m rotor to realize adjusting radial air gap.Regulate torque and rotational speed by mobile conductive magnetic yoke, the more traditional tubular permanent-magnet speed governor of required axial space reduces greatly, to some extent solves traditional tubular permanent-magnet speed governor axial space and takies comparatively large and speed adjusting gear complicated and the problem that active force is large.But, in this kind of structure, each permanent magnet can only send from the N pole of self the S pole getting back to self, the N pole of adjacent permanent magnet and N pole are mutually repelled, conductive magnetic yoke can only shield a part of magnetic induction line, even substantially shielding action is not had to magnetic induction line, do not have the effect regulating magnetic flux, wherein the schematic diagram that shielded completely by permanent magnet of conductive magnetic yoke as Figure 1-1, when magnetic induction line sends from N pole and gets back to S pole, a part is passed through from permanent magnet towards the side of copper conductor, this part magnetic induction line is cut by copper conductor, and can not be changed with the position of conductive magnetic yoke by the magnetic flux of copper conductor and change, another portion passes through from the side of permanent magnet near conductive magnetic yoke, no matter how this part magnetic induction line conductive magnetic yoke moves, all can not be cut by copper conductor, also eddy current and moment of torsion can not be produced, in sum, the speed adjustable range of this structure to load is extremely limited, even almost can not adjusting rotary speed, can not regulate from zero-speed, a hundred per cent transmission of magnetic induction line can not be reached, cause the waste of energy, do not reach expected effect, want to realize rotating speed between conductor rotor and p-m rotor very difficult to maximum adjustment from zero, prior art does not have the structure that can arrive this effect.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the present invention is directed to the problem that permanent-magnet speed governor regulates the axial force that overcomes required for integrated permanent magnet rotor very large, provide one and move axially magnetic screen formula permanent-magnet speed governor, adjustment structure is simpler, size is less, need not the mass centre of equipment be made to remain fixing by mobile integrated permanent magnet rotor, equipment be more stable more reliable, and can regulate between the speed of the rotating speed of load from zero-speed to conductor rotor arbitrarily simultaneously.
One moves axially magnetic screen formula permanent-magnet speed governor, comprise conductor rotor, p-m rotor, gas gap is there is between described conductor rotor and described p-m rotor, characterized by further comprising and move axially magnetic screen mechanism, described in move axially magnetic screen organization establishes between described conductor rotor and described p-m rotor.
The described magnetic screen mechanism that moves axially can move axially by relatively described p-m rotor.
The described magnetic screen mechanism that moves axially comprises axial shield structure, magnetic flux adjustment structure, and described axial shield structure is connected with described magnetic flux adjustment structure.
Described magnetic flux adjustment structure comprises slip cap, guide pillar bearing, described axial shield structure is fixed by screws on described slip cap, described slip cap, described axial shield structure are connected with load shaft coupling by the dive key be arranged on load shaft coupling, described slip cap is provided with cannelure, gathering sill, described guide pillar bearing is arranged in described cannelure, and described gathering sill and described dive key match.
The quantity of described guide pillar bearing is two, and described in two, guide pillar bearing is symmetrically distributed in described cannelure.
The push-and-pull syndeton that described axial shield structure comprises hollow cartridge type radome and is connected with radome, described radome is arranged in the space between described conductor rotor and described p-m rotor, and the described push-pull configuration of described axial shield structure is fixed by screws on described slip cap.
Also comprise the exterior operator be connected with described push-and-pull magnetic screen mechanism, described exterior operator is connected with described guide pillar bearing.
The described magnetic screen mechanism that moves axially is connected with described p-m rotor matched in clearance.
Describedly move axially magnetic screen mechanism and described p-m rotor is coaxially arranged.
Described cartridge type conductor rotor is connected with motor driving shaft by coupling for driving shaft, and described cartridge type conductor rotor is provided with copper conductor.
Described p-m rotor is connected with load driving shaft by load shaft coupling, and described p-m rotor inside is provided with circumferentially equally distributed permanent magnet.
The invention has the beneficial effects as follows: be provided with push-and-pull shielding body, the hollow cartridge type radome of push-and-pull shielding body regulates magnetic flux by the slip cap of push-and-pull syndeton, magnetic flux adjustment structure and guide pillar bearing by exterior operator, regulate the cutting of magnetic induction line in other words, in adjustment process, slip cap movement vertically realizes the push-and-pull of radome, p-m rotor does not have axial displacement, eliminate the adjustment structure of its complexity, device structure is simple and easy to realize, take up room little, avoid product axial dimension greatly to the inconvenience that Reconstruction in field brings; Reduce the vibration of equipment, make bearing not fragile, equipment dependability is good; Caloric value is little, there is not equipment cooling difficulty, problem that permanent magnet easily lost efficacy, any adjustment load speed achieves from zero-speed to conductor rotor rotating speed, shielding and magnetic flux regulating effect good.The present invention's application magnetic screen principle regulating shaft is to the axial location of shielding construction, eliminate the frictional force that produces of driving torque when p-m rotor drives load, compare and regulate the axial force overcome required for integrated permanent magnet rotor greatly to reduce, the output torque of magnetic flux adjustment structure reduces thereupon greatly, whole adjustment structure is simpler, and size is less.
Accompanying drawing explanation
Fig. 1-1 is the schematic diagram that prior art conductive magnetic yoke shields completely to permanent magnet;
Fig. 1 is the structural representation that permanent magnet thrown off completely by radome of the present invention;
Fig. 2 is the structural representation that radome of the present invention covers permanent magnet completely;
Fig. 3 is the structural representation of push-and-pull magnetic screen mechanism of the present invention;
Fig. 4 is the schematic diagram of conductor rotor assembly of the present invention;
Fig. 5 is the schematic diagram of p-m rotor assembly of the present invention;
Fig. 6 is the structural representation of slip cap of the present invention;
Fig. 7 is the structural representation of load shaft coupling of the present invention;
Fig. 8 is the schematic diagram that the present invention leads radome and throws off permanent magnet (not playing shielding action) completely;
Fig. 9 is the schematic diagram that radome of the present invention covers permanent magnet completely.
In figure, 1, motor driving shaft, 2, coupling for driving shaft, 3, conductor rotor, 4, copper conductor, 5, p-m rotor, 6, permanent magnet, 7, axial shield structure, 8, slip cap, 9, guide pillar bearing, 10, dive key, 11, load shaft coupling, 12, load driving shaft, 13, radome, 14, push-and-pull syndeton, 15, gathering sill, 16, cannelure.
Embodiment
Explain below in conjunction with a kind of embodiment of accompanying drawing to invention.
As Figure 1-5, the invention provides one and move axially magnetic screen formula permanent-magnet speed governor, comprise conductor rotor 3, p-m rotor 5, air gap is there is between described conductor rotor 3 and described p-m rotor 5, characterized by further comprising and move axially magnetic screen mechanism, described in move axially magnetic screen organization establishes between described conductor rotor 3 and described p-m rotor 5.
The described magnetic screen mechanism that moves axially can move axially by relatively described p-m rotor 5.
The described magnetic screen mechanism that moves axially comprises axial shield structure 7, magnetic flux adjustment structure, and described axial shield structure 7 is connected with described magnetic flux adjustment structure.
Described magnetic flux adjustment structure comprises slip cap 8, guide pillar bearing 9, described axial shield structure 7 is fixed by screws on described slip cap 8, described slip cap 8, described axial shield structure 7 are connected with load shaft coupling 11 by the dive key 10 be arranged on load shaft coupling 11, slip cap 8 is provided with the gathering sill 15 coordinated with dive key 10, described slip cap 8 is provided with cannelure 16, and described guide pillar bearing 9 is arranged in described cannelure 16.
The quantity of described guide pillar bearing 9 is two, and guide pillar bearing 9 described in two is symmetrically distributed in described cannelure 16.
The push-and-pull syndeton 14 that described axial shield structure 7 specifically comprises hollow cartridge type radome 13 and is connected with radome 13, described radome 13 is arranged in the space between described conductor rotor 3 and described p-m rotor 5, and the described push-pull configuration of described axial shield structure 7 is fixed by screws on described slip cap 8.
The described magnetic screen mechanism that moves axially is connected with described p-m rotor 5 matched in clearance.
Describedly move axially magnetic screen mechanism and described p-m rotor 5 is coaxially arranged.
Also comprise the exterior operator be connected with described push-and-pull magnetic screen mechanism, described exterior operator is connected with described guide pillar bearing 9.
Described cartridge type conductor rotor 3 is connected with motor driving shaft 1 by coupling for driving shaft 2, and described cartridge type conductor rotor 3 is provided with copper conductor 4.
Described p-m rotor 5 is connected with load driving shaft 12 by load shaft coupling 11, and described p-m rotor 5 inside is provided with circumferentially equally distributed permanent magnet 6.
Embodiment:
The magnetic screen formula that the moves axially permanent-magnet speed governor of the present embodiment, comprises cartridge type conductor rotor 3, is arranged on the p-m rotor 5 of cartridge type conductor rotor 3 inner circumferential, is arranged on and moves axially magnetic screen mechanism between conductor rotor 3 and p-m rotor 5.
Wherein, cartridge type conductor rotor 3 is arranged on motor driving shaft 1 by coupling for driving shaft 2, cartridge type conductor rotor 3 is provided with copper conductor 4, as shown in Figure 4.P-m rotor 5 inside is provided with circumferentially equally distributed permanent magnet 6, its schematic diagram as shown in Figure 5, p-m rotor 5 is arranged on bearing axle by load shaft coupling 11, air gap is there is between conductor rotor 3 and p-m rotor 5, contactless, move axially magnetic screen mechanism to be connected with p-m rotor 5 matched in clearance, move axially magnetic screen mechanism and p-m rotor 5 can coaxially be arranged, also can arrange by off-axis, as long as shielding action of the present invention can be realized, being convenient to make the present invention implement, moving axially magnetic screen mechanism and adopting coaxial set-up mode with p-m rotor 5; In addition, move axially magnetic screen mechanism can relatively move axially by p-m rotor 5.
The present embodiment move axially axial shield structure 7 and the magnetic flux adjustment structure that magnetic screen mechanism comprises connection, magnetic flux adjustment structure comprises slip cap 8, guide pillar bearing 9;
Wherein in embodiments of the invention, axial shielding construction 7 realizes the change of magnetic flux with the form of push-and-pull, but is not limited to this form of push-pull configuration.The push-and-pull syndeton 14 that axial shield structure 7 specifically comprises hollow cartridge type radome 13 and is connected with radome 13, radome 13 is arranged in the space between conductor rotor 3 and described p-m rotor 5, the schematic diagram of axial shield structure 7 as shown in Figure 3, for ease of enforcement of the present invention, radome 13 is the cylinder of a hollow, push-and-pull syndeton 14 is had in radome 13 end, the i.e. structure of an annular plate, this structure is fixedly connected with slip cap 8, radome 13 and push-and-pull syndeton 14 as a whole, the width of radome 13 is greater than the width equaling permanent magnet 6, in moving process, permanent magnet 6 could to be shielded completely like this.In addition; the radome 13 of the hollow circuit cylinder bodily form is not unique execution mode of the present invention; the shape of other these structures similar; if cross section is the polygonal structure of geometry (polygon-prism body), every shielding principle is identical and can realize structure of the present invention and all belong to protection scope of the present invention.
Exterior operator is connected with push-and-pull magnetic screen mechanism on the one hand; be connected with described guide pillar bearing 9 on the other hand; for controlling magnetic flux adjustment structure; and then control moving axially of flux shield structure; exterior operator can be the structure such as cylinder, hydraulic cylinder; or for controlling more accurate servomotor or stepping motor, also or manual adjustments, everyly can realize control structure that is electronic or on-electric of the present invention and be protection scope of the present invention.
As improvement of the present invention, the push-pull configuration of axial shield structure 7 is fixed by screws on described slip cap 8, slip cap 8, axial shield structure 7 is arranged on load shaft coupling 11 by dive key 10, can rotate with load driving shaft 12, dive key 10 is arranged on load shaft coupling 11, between slip cap 8 and load shaft coupling 11, slip cap 8 is provided with cannelure 16, in cannelure 16, two guide pillar bearings 9 are installed, these two guide pillar bearings 9 are symmetrically distributed in cannelure 16, guide pillar bearing 9 is connected with exterior operator, exterior operator pushes away (drawing), and guide pillar bearing 9 can realize shading ring and slip cap 8 (afterwards) movement before axis on load shaft coupling 11.The structure chart of slip cap 8, load shaft coupling 11 respectively as shown in Figure 6, Figure 7.
Permanent magnet 6 of the present invention is fixed on magnet fixed disc, and distribute along the even circumferential of magnet fixed disc, permanent magnet 6 comprises N pole and S pole, the N pole of permanent magnet 6 or S pole are towards the inwall direction of conductor rotor 3, and N pole is interspersed towards the permanent magnet 6 of conductor rotor 3 inwall with the permanent magnet 6 of S pole towards conductor rotor 3 inwall, as Figure 8-9, like this, N pole sends, this part magnetic induction line that can be cut to by conductor rotor 3 all will by conductor rotor 3, get back to the S pole of adjacent permanent magnet 6, and the S pole of self can not be got back to, ensure that the magnetic induction line of generation when not conductively-closed all by conductor rotor 3, conductor rotor 3 pairs of magnetic induction lines are cut, this arrangement mode can make magnetic induction line farthest by conductor rotor 3, this structure coordinates with axial shield structure 7, make axial shield structure 7 can shield permanent magnet 6 (conductor rotor 3 not cutting magnetic induction line completely completely, load speed is zero), also permanent magnet 6 (conductor rotor 3 cutting magnetic induction line to greatest extent can be thrown off completely, there is not the situation that magnetic induction line is missed, and then the moment of torsion that can produce reaches maximum, load speed reaches maximum).
Operation principle: when the magnetic pole of axial shield structure 7 with permanent magnet 6 is thrown off completely, to the unshielded effect of permanent magnet 6, the magnetic induction line of permanent magnet 6 is all by copper conductor 4, and copper conductor 4 cutting magnetic induction line amount is maximum, and transmitting torque is maximum.Specifically as shown in Figure 1, axial shield structure 7 moves to low order end vertically, now exposes p-m rotor 5 completely, and the 7 pairs of unshielded effects of permanent magnet 6 of axial shield structure, moment of torsion is maximum.
Work as electric motor starting, motor driving shaft 1 drives conductor rotor 3 to rotate, in conductor rotor 3, copper conductor 4 cuts the magnetic induction line in p-m rotor 5 in permanent magnet 6, copper conductor 4 produces induced current, and then formation induced field, the magnetic Field Coupling effect of induced field and permanent magnet 6 produces torque drive load and rotates.
When axial shield structure 7 covers the magnetic pole of permanent magnet 6 completely, as shown in Figure 2, axial shield structure 7 moves to high order end vertically and is covered completely by p-m rotor 5, magnetic permeability due to axial shield structure 7 is more than thousand times of gap location medium, now the magnetic induction line loop of permanent magnet 6 is all limited in axial shield structure 7 inside, is zero by the magnetic induction line of copper conductor 4, and copper conductor 4 and magnetic induction line are without dissection, transmitting torque is zero, now load transfixion.
Above example of the present invention has been described in detail, but described content being only preferred embodiment of the present invention, can not being considered to for limiting practical range of the present invention.All equalizations done according to the present patent application scope change and improve, and all should still belong within patent covering scope of the present invention.

Claims (10)

1. one kind moves axially magnetic screen formula permanent-magnet speed governor, comprise conductor rotor, p-m rotor, air gap is there is between described conductor rotor and described p-m rotor, characterized by further comprising and move axially magnetic screen mechanism, described in move axially magnetic screen organization establishes between described conductor rotor and described p-m rotor.
2. according to claim 1ly move axially magnetic screen formula permanent-magnet speed governor, moving axially magnetic screen mechanism described in it is characterized in that can move axially by relatively described p-m rotor.
3. according to claim 1 and 2ly move axially magnetic screen formula permanent-magnet speed governor, move axially magnetic screen mechanism described in it is characterized in that and comprise axial shield structure, magnetic flux adjustment structure, described axial shield structure is connected with described magnetic flux adjustment structure.
4. according to claim 3ly move axially magnetic screen formula permanent-magnet speed governor, it is characterized in that described magnetic flux adjustment structure comprises slip cap, guide pillar bearing, described axial shield structure is fixed by screws on described slip cap, described slip cap, described axial shield structure are connected with load shaft coupling by the dive key be arranged on load shaft coupling, described slip cap is provided with cannelure, gathering sill, described guide pillar bearing is arranged in described cannelure, and described gathering sill and described dive key match.
5. according to claim 4ly move axially magnetic screen formula permanent-magnet speed governor, it is characterized in that the quantity of described guide pillar bearing is two, described in two, guide pillar bearing is symmetrically distributed in described cannelure.
6. the magnetic screen formula that the moves axially permanent-magnet speed governor according to claim 3 or 4 or 5, it is characterized in that the push-and-pull syndeton that described axial shield structure comprises hollow cartridge type radome and is connected with radome, described radome is arranged in the space between described conductor rotor and described p-m rotor, and the described push-pull configuration of described axial shield structure is fixed by screws on described slip cap.
7. according to claim 1 and 2ly move axially magnetic screen formula permanent-magnet speed governor, move axially magnetic screen mechanism described in it is characterized in that and be connected with described p-m rotor matched in clearance.
8. according to claim 1 and 2ly move axially magnetic screen formula permanent-magnet speed governor, move axially magnetic screen mechanism described in it is characterized in that and described p-m rotor is coaxially arranged.
9. according to claim 1ly move axially magnetic screen formula permanent-magnet speed governor, it is characterized in that described cartridge type conductor rotor is connected with motor driving shaft by coupling for driving shaft, described cartridge type conductor rotor is provided with copper conductor.
10. according to claim 1ly move axially magnetic screen formula permanent-magnet speed governor, it is characterized in that described p-m rotor is connected with load driving shaft by load shaft coupling, described p-m rotor inside is provided with circumferentially equally distributed permanent magnet.
CN201610084230.XA 2016-02-06 2016-02-06 Move axially magnetic screen formula permanent-magnet speed governor Active CN105553227B (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107465330A (en) * 2017-09-18 2017-12-12 安徽沃弗电力科技有限公司 One kind axial movement magnetic screen formula permanent-magnet speed governor
CN107859700A (en) * 2016-09-22 2018-03-30 李启飞 Linear magnetic retarder
CN107919786A (en) * 2017-12-14 2018-04-17 沈阳航磁科技有限公司 A kind of permanent-magnet speed governor of fixed magnetic gap
CN108282074A (en) * 2018-01-28 2018-07-13 北京工业大学 A kind of hybrid permanent torque permanent magnet eddy-current clutch of more conductor cylinders
WO2018196338A1 (en) * 2017-04-27 2018-11-01 天津吉玄节能技术股份有限公司 Axially movable magnetic shielding-type permanent magnetic speed regulator
CN108809046A (en) * 2018-05-25 2018-11-13 天津吉玄节能技术股份有限公司 A kind of hydraulic-driven magnetic screen formula permanent-magnet speed governor
CN109120135A (en) * 2017-06-24 2019-01-01 李启飞 Planetary roller screw Linear magnetic force retarder

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JP4013815B2 (en) * 2003-04-14 2007-11-28 株式会社デンソー Synchronous rotating electrical machine and control method thereof
CN102035351A (en) * 2011-01-24 2011-04-27 南京艾凌节能技术有限公司 Permanent magnet coupling speed regulator
CN202014189U (en) * 2011-04-18 2011-10-19 黄耀清 Permanent magnetic speed regulator and speed regulating mechanism with same
CN205847053U (en) * 2016-02-06 2016-12-28 天津吉玄节能技术有限公司 Move axially magnetic shield formula permanent-magnet speed governor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4013815B2 (en) * 2003-04-14 2007-11-28 株式会社デンソー Synchronous rotating electrical machine and control method thereof
CN102035351A (en) * 2011-01-24 2011-04-27 南京艾凌节能技术有限公司 Permanent magnet coupling speed regulator
CN202014189U (en) * 2011-04-18 2011-10-19 黄耀清 Permanent magnetic speed regulator and speed regulating mechanism with same
CN205847053U (en) * 2016-02-06 2016-12-28 天津吉玄节能技术有限公司 Move axially magnetic shield formula permanent-magnet speed governor

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107859700A (en) * 2016-09-22 2018-03-30 李启飞 Linear magnetic retarder
WO2018196338A1 (en) * 2017-04-27 2018-11-01 天津吉玄节能技术股份有限公司 Axially movable magnetic shielding-type permanent magnetic speed regulator
CN109120135A (en) * 2017-06-24 2019-01-01 李启飞 Planetary roller screw Linear magnetic force retarder
CN107465330A (en) * 2017-09-18 2017-12-12 安徽沃弗电力科技有限公司 One kind axial movement magnetic screen formula permanent-magnet speed governor
CN107919786A (en) * 2017-12-14 2018-04-17 沈阳航磁科技有限公司 A kind of permanent-magnet speed governor of fixed magnetic gap
CN108282074A (en) * 2018-01-28 2018-07-13 北京工业大学 A kind of hybrid permanent torque permanent magnet eddy-current clutch of more conductor cylinders
CN108809046A (en) * 2018-05-25 2018-11-13 天津吉玄节能技术股份有限公司 A kind of hydraulic-driven magnetic screen formula permanent-magnet speed governor

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