CN108282075A - A kind of novel permanent magnetic driver - Google Patents
A kind of novel permanent magnetic driver Download PDFInfo
- Publication number
- CN108282075A CN108282075A CN201810281541.4A CN201810281541A CN108282075A CN 108282075 A CN108282075 A CN 108282075A CN 201810281541 A CN201810281541 A CN 201810281541A CN 108282075 A CN108282075 A CN 108282075A
- Authority
- CN
- China
- Prior art keywords
- cylinder
- axis
- permanent magnetic
- conductor
- rotation disc
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000004020 conductor Substances 0.000 claims abstract description 60
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000000696 magnetic material Substances 0.000 claims abstract description 3
- 238000009423 ventilation Methods 0.000 claims description 20
- 238000001816 cooling Methods 0.000 claims description 11
- 230000005389 magnetism Effects 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 4
- 238000002955 isolation Methods 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 description 8
- 230000008878 coupling Effects 0.000 description 6
- 238000010168 coupling process Methods 0.000 description 6
- 238000005859 coupling reaction Methods 0.000 description 6
- 230000006698 induction Effects 0.000 description 6
- 230000006378 damage Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005674 electromagnetic induction Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/18—Casings or enclosures characterised by the shape, form or construction thereof with ribs or fins for improving heat transfer
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
Abstract
The invention discloses a kind of novel permanent magnetic drivers, including seperated and coaxial first axle and the second axis, discoid permanent magnetic rotation disc is set in the first axle, it is set with conductor turntable on second axis, the conductor turntable outer diameter is more than permanent magnetic rotation disc outer diameter, the permanent magnetic rotation disc outer edge is fixedly installed the load magnetic cylinder of cylindric non-magnetic material, it is fixedly installed at the conductor disk edge far from the second axis and the outer layer cylinder coaxial with the second axis and close to the second axis and the internal layer cylinder coaxial with the second axis, generally, the present invention has simple in structure, torque can efficiently be transmitted, flexibility starts, isolation vibration, effectively improve radiating efficiency, with certain overload protection ability, greatly prolong service life, it maintains easily, has the advantages that high use value.
Description
Technical field
The invention belongs to Drive technology fields, are related to a kind of permanent magnet drive, especially it is a kind of flexible can start and every
Novel permanent magnetic driver from vibration.
Background technology
In existing machine driven system, the connecting mode between motor and load equipment is divided into rigidity and flexibility substantially
Two kinds.For example various machenical couplings of connection of rigidity, connection flexible have mechanical yielding coupling, fluid coupling, liquid to glue coupling
Clutch etc..The characteristics of rigid attachment is that input and output rotation is fully synchronized, and torque transmission efficiency is high, and installation requires the heart high, peace
It is big to fill difficulty, and the vibration between input and output device can be caused to transmit mutually, amplifies the influence of vibration, equipment is made to be easy to send out
Raw failure, non-maintaining run time is short, when stall failure occurs for load equipment, can lead to motor, load and connecting device
When damaging, and being abnormal vibration, it is not easy to find vibration source, and be unfavorable for solving.Connection flexible can allow larger
Alignment deviation reduces vibration and transmits, there is certain flexible startup function to a certain extent；But torque transmission efficiency is relatively low, works as hair
When raw stall failure, generally motor and load can only be protected with the destruction of itself, and be easy to damage motor and load, replaced
Come also bothersome laborious, influences the normal operation of system.Permanent magnet high temperature resistance is poor, and phenomenon of demagnetizing under high temperature is more serious, existing
Permanent magnet drive heat dissipation performance it is poor, service life is shorter.
Invention content
It is simple in structure the purpose of the present invention is to provide a kind of novel permanent magnetic driver, torque can be efficiently transmitted, it is soft
Property start, isolation vibration effectively improves radiating efficiency, greatly prolongs service life, maintains easily, and has and high uses valence
Value.
The object of the present invention is achieved like this：A kind of novel permanent magnetic driver, including seperated and coaxial first axle and
Second axis is set with discoid permanent magnetic rotation disc in the first axle, conductor turntable is set on second axis, described
Conductor turntable outer diameter be more than permanent magnetic rotation disc outer diameter, the permanent magnetic rotation disc outer edge is fixedly installed cylindric non magnetic
The load magnetic cylinder of material, be fixedly installed at the conductor disk edge far from the second axis and the outer layer cylinder coaxial with the second axis and
Close to the second axis and the internal layer cylinder coaxial with the second axis, inner wire cylinder, the outer layer are provided on the internal layer drum outer wall
Cylinder inner wall on be provided with outer conductor cylinder, between the inner wire cylinder and outer conductor cylinder there are relatively load magnetic cylinder thickness it is bigger between
Gap is provided with mounting hole on the load magnetic cylinder, and the permanent magnet is arranged in mounting hole, the permanent magnet magnetic extreme direction
Vertical with permanent magnetic rotation disc axis, heteropolar installation between the permanent magnet adjacent magnets, the load magnetic cylinder is arranged in inner wire
Identical air gap is kept between cylinder and outer conductor cylinder and with inner wire cylinder and outer conductor cylinder, ventilation is provided on the load magnetic cylinder
Mouthful, it is provided with corresponding ventilation opening on the outer layer cylinder and outer conductor cylinder, is arranged on the internal layer cylinder and inner wire cylinder
There is corresponding ventilation opening.
The first axle and the second axis can input each other or output shaft.
Ventilation opening on the outer conductor cylinder and inner wire cylinder does not correspond.
The ventilation mouth-shaped can be sector, rectangle, round ellipse, round or triangle.
The permanent magnetism shape can be sector, rectangle, round ellipse, round or triangle.
Wheel hub and locking dress are both provided between the first axle and permanent magnetic rotation disc between the second axis and conductor turntable
It sets.
It is both provided with heat emission hole on the conductor turntable and permanent magnetic rotation disc.
It is provided with cooling fin on the outside of the outer layer cylinder, cooling fin is provided on the inside of the internal layer cylinder.
The beneficial effect comprise that：The permanent magnet being arranged on permanent magnetic rotation disc divides the pole N, S arranged adjacent, magnetic induction line to wear
Corresponding internal and external conductor cylinder is crossed, when the two relative motion, the whole magnetic induction lines of conductor cylinder near normal cutting, to inside and outside
Eddy current, eddy current and then generation dislike magnetic field are generated in conductor cylinder respectively, is prevented between permanent magnetic rotation disc and internal and external conductor cylinder
Relative motion, to realize that the torque between permanent magnetic rotation disc and conductor turntable transmits, the magnetic induction line of internal and external conductor cylinder cutting is more,
Eddy current in internal and external conductor cylinder is stronger, and the torque of transmission is bigger, and torque transmission efficiency is higher, passes through electromagnetic induction reality
The contactless transmission of power is showed, which greatly reduces the distance between permanent magnet and internal and external conductor cylinder, increases effectively coupling
Area is closed, the efficiency and maximum moment for transmitting torque are increased, ventilation opening is set on interior outer conductor layer, inner/outer tube layer, load magnetic cylinder,
Driver inner air flowing rate in the process of running is effectively improved, so that the heat that driver generates quickly is spread, effectively keeps away
Exempt from that permanent magnet drive temperature is excessively high to cause permanent magnet to demagnetize, greatly prolong the service life of permanent magnet, passes through wheel hub and locking fills
It sets that two axis are fixed together respectively by permanent magnetic rotation disc, conductor turntable, heat emission hole is set in conductor turntable and permanent magnetic rotation disc,
The ventilation effect of driver is further increased, while cooling fin is set on the outside of outer layer cylinder and on the inside of internal layer cylinder, is further increased
The radiating efficiency of driver reduces torque on startup, simple in structure, easy to install and use.
Generally, the present invention has simple in structure, can efficiently transmit torque, and flexibility starts, and isolation vibration effectively carries
High cooling efficiency has certain overload protection ability, greatly prolongs service life, maintain easily, and valence is used with high
The advantages of value.
Description of the drawings
Fig. 1 is the main structure diagram of the present invention.
Fig. 2 is the schematic cross-sectional view of the present invention.
Fig. 3 is the left view structural representation of the present invention.
Fig. 4 is that the right side of the present invention regards structural scheme of mechanism.
Fig. 5 is A-A cross section structure schematic diagrams in Fig. 1.
In figure：1, first axle 2, the second axis 3, permanent magnetic rotation disc 4, conductor turntable 5, load magnetic cylinder 6, outer layer cylinder 7, internal layer
Cylinder 8, inner wire cylinder 9, outer conductor cylinder 10, mounting hole 11, permanent magnet 12, ventilation opening 13, wheel hub 14, locking device
15, heat emission hole 16, cooling fin.
Specific implementation mode
Below in conjunction with the accompanying drawings to the embodiment of the present invention further instruction.
Embodiment 1
As shown in attached drawing 1-5, a kind of novel permanent magnetic driver, including seperated and coaxial first axle 1 and the second axis 2, it is described
It is set with discoid permanent magnetic rotation disc 3 in first axle 1, conductor turntable 4 is set on second axis 2, the conductor turns
4 outer diameter of disk is more than 3 outer diameter of permanent magnetic rotation disc, and 3 outer edge of permanent magnetic rotation disc is fixedly installed cylindric non-magnetic material
Load magnetic cylinder 5,4 edge of conductor turntable is fixedly installed far from the second axis 2 and the outer layer cylinder 6 coaxial with the second axis 2
It is provided with inner wire cylinder 8 on the second axis 2 and the internal layer cylinder 7 coaxial with the second axis 2,7 outer wall of internal layer cylinder, it is described
6 inner wall of outer layer cylinder on be provided with outer conductor cylinder 9, it is thick there are magnetic cylinder 5 is relatively carried between the inner wire cylinder 8 and outer conductor cylinder 9
Bigger gap is spent, mounting hole 10 is provided on the load magnetic cylinder 5, the permanent magnet 11 is arranged in mounting hole 10, institute
11 pole orientation of permanent magnet stated is vertical with 3 axis of permanent magnetic rotation disc, heteropolar installation between 11 adjacent magnets of permanent magnet, institute
The load magnetic cylinder 5 stated is arranged between inner wire cylinder 8 and outer conductor cylinder 9 and keeps identical gas with inner wire cylinder 8 and outer conductor cylinder 9
Gap is provided with ventilation opening 12 on the load magnetic cylinder 5, corresponding ventilation is provided on the outer layer cylinder 6 and outer conductor cylinder 9
Mouthfuls 12, corresponding ventilation opening 12 is provided on the internal layer cylinder 7 and inner wire cylinder 8.
The first axle 1 and the second axis 2 can input each other or output shaft.
Ventilation opening 12 on the outer conductor cylinder 9 and inner wire cylinder 8 does not correspond.
12 shape of ventilation opening is rectangle.
11 shape of permanent magnet is rectangle.
Be both provided between the second axis 2 and conductor turntable 4 between the first axle 1 and permanent magnetic rotation disc 3 wheel hub 13 and
Locking device 14.
It is both provided with heat emission hole 15 on the conductor turntable 4 and permanent magnetic rotation disc 3.
6 outside of outer layer cylinder is provided with cooling fin 16, and 7 inside of internal layer cylinder is provided with cooling fin 16.
The present invention is when in use：The permanent magnet being arranged on permanent magnetic rotation disc divides the pole N, S arranged adjacent, magnetic induction line to pass through corresponding
Internal and external conductor cylinder, when the two relative motion, the whole magnetic induction lines of conductor cylinder near normal cutting, in internal and external conductor cylinder
Eddy current, eddy current and then generation dislike magnetic field are generated respectively, prevent the relative motion between permanent magnetic rotation disc and internal and external conductor cylinder,
To realize that the torque between permanent magnetic rotation disc and conductor turntable transmits, the magnetic induction line of internal and external conductor cylinder cutting is more, internal and external conductor
Eddy current in cylinder is stronger, and the torque of transmission is bigger, and torque transmission efficiency is higher, and power is realized by electromagnetic induction
Contactless transmission, which greatly reduces the distance between permanent magnet and internal and external conductor cylinder, increases effectively coupling area, increases
Add the efficiency and maximum moment for transmitting torque, ventilation opening is set on interior outer conductor layer, inner/outer tube layer, load magnetic cylinder, is effectively improved
Inner air flows rate to driver in the process of running, so that the heat that driver generates quickly is spread, effectively permanent magnetism is avoided to drive
Dynamic device temperature is excessively high to cause permanent magnet to demagnetize, and greatly prolongs the service life of permanent magnet, by wheel hub and locking device by permanent magnetism
Two axis are fixed together respectively for turntable, conductor turntable, and heat emission hole is arranged in conductor turntable and permanent magnetic rotation disc, further carries
The ventilation effect of high driver, while cooling fin is set on the outside of outer layer cylinder and on the inside of internal layer cylinder, further increase driver
Radiating efficiency reduces torque on startup, simple in structure, easy to install and use.
Generally, the present invention has simple in structure, can efficiently transmit torque, and flexibility starts, and isolation vibration effectively carries
High cooling efficiency has certain overload protection ability, greatly prolongs service life, maintain easily, and valence is used with high
The advantages of value.
Claims (8)
1. a kind of novel permanent magnetic driver, including seperated and coaxial first axle and the second axis, it is set in the first axle
Discoid permanent magnetic rotation disc, conductor turntable is set on second axis, and the conductor turntable outer diameter is more than permanent magnetic rotation disc
Outer diameter, it is characterised in that：The permanent magnetic rotation disc outer edge is fixedly installed the load magnetic cylinder of cylindric non-magnetic material, institute
Be fixedly installed at the conductor disk edge stated far from the second axis and the outer layer cylinder coaxial with the second axis and close to the second axis and with
Second axis coaxial internal layer cylinder is provided with inner wire cylinder on the internal layer drum outer wall, is provided on the outer layer cylinder inner wall
Outer conductor cylinder, there are compared with the bigger gap of load magnetic cylinder thickness, the load magnetic cylinder between the inner wire cylinder and outer conductor cylinder
On be provided with mounting hole, the permanent magnet is arranged in mounting hole, the permanent magnet magnetic extreme direction and permanent magnetic rotation disc axis
Vertically, heteropolar installation between the permanent magnet adjacent magnets, load magnetic cylinder setting inner wire cylinder and outer conductor cylinder it
Between and with inner wire cylinder and outer conductor cylinder keep identical air gap, be provided with ventilation opening, the outer layer on the load magnetic cylinder
It is provided with corresponding ventilation opening on cylinder and outer conductor cylinder, corresponding ventilation is provided on the internal layer cylinder and inner wire cylinder
Mouthful.
2. a kind of novel permanent magnetic driver according to claim 1, it is characterised in that：The first axle and the second axis can
Input or output shaft each other.
3. a kind of novel permanent magnetic driver according to claim 1, it is characterised in that：The outer conductor cylinder and inner wire
Ventilation opening on cylinder does not correspond.
4. a kind of novel permanent magnetic driver according to claim 1, it is characterised in that：The ventilation mouth-shaped can be
Sector, rectangle, round ellipse, round or triangle.
5. a kind of novel permanent magnetic driver according to claim 1, it is characterised in that：The permanent magnetism shape can be
Sector, rectangle, round ellipse, round or triangle.
6. a kind of novel permanent magnetic driver according to claim 1, it is characterised in that：The first axle and permanent magnetic rotation disc
Between be both provided with wheel hub and locking device between the second axis and conductor turntable.
7. a kind of novel permanent magnetic driver according to claim 1, it is characterised in that：The conductor turntable and permanent magnetism turn
Heat emission hole is both provided on disk.
8. a kind of novel permanent magnetic driver according to claim 1, it is characterised in that：It is provided on the outside of the outer layer cylinder
Cooling fin, the internal layer cylinder inside are provided with cooling fin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810281541.4A CN108282075A (en) | 2018-04-02 | 2018-04-02 | A kind of novel permanent magnetic driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810281541.4A CN108282075A (en) | 2018-04-02 | 2018-04-02 | A kind of novel permanent magnetic driver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108282075A true CN108282075A (en) | 2018-07-13 |
Family
ID=62810887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810281541.4A Pending CN108282075A (en) | 2018-04-02 | 2018-04-02 | A kind of novel permanent magnetic driver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108282075A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113847362A (en) * | 2021-09-18 | 2021-12-28 | 成都瑞迪智驱科技股份有限公司 | Ring type electromagnetic brake capable of adjusting torque and air gap |
| EP4080087A4 (en) * | 2020-01-24 | 2023-06-21 | Mitsubishi Heavy Industries, Ltd. | Pole shoe device, magnetic gear, magnetic geared motor, and magnetic geared electric generator |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4116160A1 (en) * | 1991-05-17 | 1992-11-19 | Voith Gmbh J M | EM retarder acting as eddy-current brake - uses permanent magnet rotor and claw-shaped stator with cooling passages |
| CN101710780A (en) * | 2009-12-02 | 2010-05-19 | 南京艾凌节能技术有限公司 | Permanent magnet speed controller |
| CN101741220A (en) * | 2010-03-04 | 2010-06-16 | 王荣松 | Permanent magnet drive |
| CN101841224A (en) * | 2010-03-09 | 2010-09-22 | 王荣松 | Cylindrical-turnplate permanent magnet speed controller |
| CN103915978A (en) * | 2014-04-11 | 2014-07-09 | 青岛斯普瑞能源科技有限公司 | Cylindrical rotating plate permanent magnet coupler |
| CN103915975A (en) * | 2014-04-11 | 2014-07-09 | 青岛斯普瑞能源科技有限公司 | Cylindrical rotating plate permanent magnet coupler |
| CN104158381A (en) * | 2014-04-11 | 2014-11-19 | 青岛斯普瑞能源科技有限公司 | Permanent magnet speed controller |
| CN206099720U (en) * | 2016-10-20 | 2017-04-12 | 中国石油大学(华东) | Permanent magnetism derailleur with fast function slowly |
| CN107612275A (en) * | 2017-09-18 | 2018-01-19 | 安徽沃弗电力科技有限公司 | Tubular magnetic support formula permanent-magnet speed governor |
| CN208128113U (en) * | 2018-04-02 | 2018-11-20 | 河南东晟节能环保股份有限公司 | A kind of novel permanent magnetic driver |
-
2018
- 2018-04-02 CN CN201810281541.4A patent/CN108282075A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4116160A1 (en) * | 1991-05-17 | 1992-11-19 | Voith Gmbh J M | EM retarder acting as eddy-current brake - uses permanent magnet rotor and claw-shaped stator with cooling passages |
| CN101710780A (en) * | 2009-12-02 | 2010-05-19 | 南京艾凌节能技术有限公司 | Permanent magnet speed controller |
| CN101741220A (en) * | 2010-03-04 | 2010-06-16 | 王荣松 | Permanent magnet drive |
| CN101841224A (en) * | 2010-03-09 | 2010-09-22 | 王荣松 | Cylindrical-turnplate permanent magnet speed controller |
| CN103915978A (en) * | 2014-04-11 | 2014-07-09 | 青岛斯普瑞能源科技有限公司 | Cylindrical rotating plate permanent magnet coupler |
| CN103915975A (en) * | 2014-04-11 | 2014-07-09 | 青岛斯普瑞能源科技有限公司 | Cylindrical rotating plate permanent magnet coupler |
| CN104158381A (en) * | 2014-04-11 | 2014-11-19 | 青岛斯普瑞能源科技有限公司 | Permanent magnet speed controller |
| CN206099720U (en) * | 2016-10-20 | 2017-04-12 | 中国石油大学(华东) | Permanent magnetism derailleur with fast function slowly |
| CN107612275A (en) * | 2017-09-18 | 2018-01-19 | 安徽沃弗电力科技有限公司 | Tubular magnetic support formula permanent-magnet speed governor |
| CN208128113U (en) * | 2018-04-02 | 2018-11-20 | 河南东晟节能环保股份有限公司 | A kind of novel permanent magnetic driver |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4080087A4 (en) * | 2020-01-24 | 2023-06-21 | Mitsubishi Heavy Industries, Ltd. | Pole shoe device, magnetic gear, magnetic geared motor, and magnetic geared electric generator |
| CN113847362A (en) * | 2021-09-18 | 2021-12-28 | 成都瑞迪智驱科技股份有限公司 | Ring type electromagnetic brake capable of adjusting torque and air gap |
| CN113847362B (en) * | 2021-09-18 | 2022-08-05 | 成都瑞迪智驱科技股份有限公司 | Ring type electromagnetic brake capable of adjusting torque and air gap |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180713 |
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| WD01 | Invention patent application deemed withdrawn after publication |