CN105990986A - Large-power permanent magnet clutch - Google Patents
Large-power permanent magnet clutch Download PDFInfo
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- CN105990986A CN105990986A CN201510381246.2A CN201510381246A CN105990986A CN 105990986 A CN105990986 A CN 105990986A CN 201510381246 A CN201510381246 A CN 201510381246A CN 105990986 A CN105990986 A CN 105990986A
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- permanent magnet
- magnetic disk
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Abstract
The present invention belongs to the permanent magnet drive technical field and relates to a large-power permanent magnet clutch. The large-power permanent magnet clutch comprises permanent magnet disks and conductor disks; air gaps are left between the permanent magnet disks and the conductor disks; the permanent magnet disks and the conductor disks are arranged in a matched manner; the permanent magnet disks are all located at the same side of the conductor disks matched with the permanent magnet disks; 2 to 8 pairs of permanent magnet disks and conductor disks are adopted respectively; the conductor disks are connected with one another sequentially through connection components so as to form a cage assembly A; the permanent magnet disks are connected with one another sequentially through torsion bars so as to form a cage assembly B; the cage assembly B is connected with an air gap adjustment mechanism; and when the air gaps are adjusted, the moving directions of the permanent magnetic disks are consistent. Compared with the prior art, and according to the large-power permanent magnet clutch of the invention, the novel configuration mode of the permanent magnet disks and the conductor disks is adopted ingeniously, and the problem of difficulty in air gap adjustment under a situation that two or more permanent magnet disks exist can be solved; and a feasible solution is provided for the implementation of an ultra-large permanent magnet clutch device. The large-power permanent magnet clutch is of great significance for the development of a magnetic driving device.
Description
Technical field
The present invention relates to permanent magnet transmission technical field, particularly relate to a kind of high-power permanent magnet variable-speed clutch.
Background technology
In China, permanent magnet clutch has been applied in the No leakage equipment such as pump, reactor, and as Clutch and brake, what China widely applied is friction-type, electromagnetic type.With the development of permanent-magnet material, utilize permanent magnet to substitute electrical excitation, be possible not only to save power supply, and small product size can be reduced, improve the electromechanical properties of product.
Permanent Magnet Clutch unlike other mechanical clutches by being mechanically coupled to transmit torque, but by the magnetic couple effect of permanent magnet.The master and slave moving axis rotating speed that it is coupled is identical, and also known as timing clutch, its structure is similar with permanent magnet clutch.Magnet provides that magnetic field intensity is for producing nominal torque accurately, and owing to magnetic field intensity is fixed value, result torque is also constant.Appropriate design clutch size can transmit fixing torque, and when exceeding nominal torque, clutch slips.Rearrange field structure and can realize limited torque change, be adjustable to below nominal torque 30-40%.
Chinese patent CN200720129993 discloses " a kind of utilize magnetic drive technology to realize the Permanent Magnet Clutch that principal and subordinate's moving part moves ", it is mainly by magnetic drive technology, use the ring-type inner magnet of opposed polarity staggered tile high performance permanent magnetic materials composition, and make outer magnet move at axial limiting by external force effect, form the combination between inner magnet or separation, thus realize the transmission of Permanent Magnet Clutch.It does not consumes energy when steady state operating conditions, and steering force needed for combining or departing from is little, can be applicable to the executing agency that various forms combines or separates；Meanwhile, without directly contact between driven member, there is not friction, certain vibration isolation, vibration-damping function can be played.Its simple in construction, transmission efficiency are high, stable drive, combine rapidly, separate thorough, can have good application prospect as the executive component in all kinds of automatic control systems.What this scheme was advantageously implemented Permanent Magnet Clutch automatically controls operation, makes clutch be operated in bound site neatly, separate on position or speed governing position, but limited by the structure, is not suitable for the large-power occasions of more than 500KW.
Chinese patent CN201420707955 discloses " a kind of energy-saving permanent magnetism flexible clutch ", including conductor disc, permanent magnetic disk, input side wheel hub and output shaft, conductor disc is connected with input side wheel hub, permanent magnetic disk is positioned at output shaft side, is provided with air gap between conductor disc and permanent magnetic disk, and output shaft is provided with actuator wheel hub, actuator wheel hub is connected with permanent magnetic disk by tubular distance piece, being provided with bearing outside actuator wheel hub, bearing is positioned in bearing block, and the outer wall of bearing block is hinged with the execution bar of lever body.Described output shaft is provided with the telophragma limiting permanent magnetic disk displacement, and telophragma is provided with two pieces, respectively corresponding front extreme position and rear extreme position.Make clutch on the premise of meeting clutch action, resistance during electric motor starting can advantageously reduced with energy-conservation, vibration isolation, the flexible plurality of advantages such as startup, overload protection, mitigating noise.The program uses simple and direct tray type structure, is conducive to improving transmission moment of torsion, conveniently realizes the operation that automatically controls of Permanent Magnet Clutch, but limited by the structure, is not suitable for air gap high-power, the many regulation occasion of more than 500KW equally.
Content of the invention
It is an object of the invention to provide a kind of high-power permanent magnet variable-speed clutch, overcome the deficiencies in the prior art, worm couple excellent for self-locking property is used in the air gap governor motion of Permanent Magnet Clutch, be conducive to improving accuracy and the reliability of width of air gap control, be operated in bound site, the speed governing position of high-power moment of torsion transmission occasion with making clutch stable performance and separate on position.
To achieve these goals, the technical scheme is that such:
Scheme one: a kind of high-power permanent magnet variable-speed clutch, including permanent magnetic disk and conductor disc, leaves air gap between permanent magnetic disk and conductor disc, and described permanent magnetic disk is arranged with conductor disc pairing, and permanent magnetic disk is respectively positioned on the homonymy of pairing conductor disc；The quantity that arranges of described permanent magnetic disk and conductor disc is 2～8 right, each conductor disc is sequentially connected with by connector and forms cage type assembly one, each permanent magnetic disk is sequentially connected composition cage type assembly two by torque arm, described cage type assembly two is connected with air gap governor motion, during air gap regulation, the moving direction of each permanent magnetic disk is consistent.
Described air gap governor motion includes push pedal, moving shaft holder, movable sleeving, main shaft, pedestal, worm gear and worm screw, movable sleeving is located on main shaft, movable sleeving peripheral hardware moving shaft holder, movable sleeving connects cage type assembly two, and cage type assembly two is positioned at one end of main shaft, and moving shaft holder connects push pedal, one end of push pedal is provided with thread bush, thread bush matches with leading screw, and leading screw is coaxially connected with worm gear, worm and wheel composition regulation transmission.
One end of described main shaft is provided with extension, arranges and radially support between this extension and cage type assembly one.
Scheme two: a kind of high-power permanent magnet variable-speed clutch, including permanent magnetic disk and conductor disc, leaves air gap between permanent magnetic disk and conductor disc, and described permanent magnetic disk is arranged with conductor disc pairing, and permanent magnetic disk is respectively positioned on the homonymy of pairing conductor disc；The quantity that arranges of described permanent magnetic disk and conductor disc is 2～8 right, each conductor disc is sequentially connected with by connector and forms cage type assembly one, each permanent magnetic disk is sequentially connected composition cage type assembly two by torque arm, described cage type assembly one is connected with air gap governor motion, during air gap regulation, the moving direction of each conductor disc is consistent.
Described air gap governor motion includes push pedal, moving shaft holder, movable sleeving, main shaft, pedestal, worm gear and worm screw, movable sleeving is located on main shaft, movable sleeving peripheral hardware moving shaft holder, movable sleeving connects cage type assembly one, and cage type assembly one is positioned at one end of main shaft, and moving shaft holder connects push pedal, one end of push pedal is provided with thread bush, thread bush matches with leading screw, and leading screw is coaxially connected with worm gear, worm and wheel composition regulation transmission.
One end of described main shaft is provided with extension, arranges and radially support between this extension and cage type assembly two.
Described main shaft is provided with connection dish, and connection dish is fixed relative to position with main shaft.
Other end perforate and the support shaft of described push pedal are slidably connected, and the axle head of support shaft is connected fixing with pedestal, and the centerline parallel of described support shaft is in the center line of leading screw.
It is provided with bearing between described support shaft and push pedal.
The drive end of described worm screw connects servomotor, hydraulic motor or handwheel.
Compared with prior art, the invention has the beneficial effects as follows:
1) creatively have employed many permanent magnetic disks of novelty and the collocation form of many conductor disc, realization for large-scale Permanent Magnet Clutch provides a practicable solution, can realize combining and separate, also can be operated on the speed governing position between combining and separating, the development for permanent magnet transmission technology has far reaching significance.
2) worm-and-wheel gear excellent for self-locking property is used in air gap governor motion, solve many air gaps regulation difficult problem under high-power moment of torsion transmission occasion, accuracy and the reliability of permanent magnetic disk positioning can be significantly improved, it is operated in bound site, the speed governing position of high-power moment of torsion transmission occasion with making clutch stable performance and separate on position, improve the stability of equipment longtime running, there is the significant advantage extending system maintenance cycle and service life.
Brief description
Fig. 1 is the embodiment of the present invention one structural representation；
Fig. 2 is the embodiment of the present invention two structural representation；
Fig. 3 is push pedal support section constructive embodiment schematic diagram in the present invention；
Fig. 4 is leading screw end construction embodiment schematic diagram in the present invention；
Fig. 5 is torque arm mounting structure embodiment schematic diagram in the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawings the detailed description of the invention of the present invention is described further:
See Fig. 1, it is a kind of high-power permanent magnet variable-speed clutch embodiment one structural representation of the present invention, this structure is provided with permanent magnetic disk 1(permanent magnetic disk 1 ＇), conductor disc 2(conductor disc 2 ＇), connection dish the 3rd, pedestal 4 and main shaft 5, connection dish 3 is fixed on one end of main shaft 5, plays the effect of guiding when permanent magnetic disk 1 moves.Pedestal 4 has box structure, on the one hand has enough weight, can guarantee that the weight balancing of device self, on the other hand has enough rigidity, can guarantee that device mitigates vibration in the running.The corresponding load-side of the other end of main shaft 5, load to be connected during use, conductor disc 2 is positioned at motor side, is connected with motor by motor side shaft coupling 20 during use.Embodiment one is arranged with conductor disc pairing by two pairs of permanent magnetic disks, and wherein permanent magnetic disk 1 is positioned at the load-side of pairing conductor disc 2, and permanent magnetic disk 1 ＇ is positioned at the load-side of pairing conductor disc 2 ＇；Gap (also referred to as " air gap ") is respectively left between permanent magnetic disk 1 and conductor disc 2, between permanent magnetic disk 1 ＇ and conductor disc 2 ＇.Two conductor disc are sequentially connected with by connector and form cage type assembly one, and two permanent magnetic disks are sequentially connected composition cage type assembly two by torque arm, by moving axially of air gap governor motion tractive cage type assembly two, can realize the regulation of air gap.During air gap regulation, the moving direction of each permanent magnetic disk is consistent, and this structure is clearly distinguishable from existing pair of permanent magnetic disk structure, has prominent creativeness, and it makes the air gap regulation of many permanent magnetic disks structure be possibly realized, and can significantly improve device suitable power.
nullAir gap governor motion includes push pedal 6、Moving shaft holder 7、Movable sleeving 8、Worm gear 9 and worm screw 10，Movable sleeving 8 is positioned on main shaft 5 and can slide along main shaft，Movable sleeving 8 peripheral hardware moving shaft holder 7，Movable sleeving 8 connects permanent magnetic disk 1，Moving shaft holder 7 connects push pedal 6，One end of push pedal 6 is provided with thread bush 11，Thread bush 11 matches with leading screw 12，Leading screw 12 is coaxially connected with worm gear 9，Worm screw 10 and worm gear 9 composition regulation transmission，When worm screw 10 driven powered rotation，The worm gear 9 engaging drives leading screw 12 to rotate，Thread bush 11 engages with leading screw 12，Push pedal 6 is made indirectly to drive permanent magnetic disk 1 to move，Permanent magnetic disk slides along wear-resistant sleeve 17 surface，Connection dish 3 is fixedly connected on the correct position of main shaft 5 by positioning retainer ring 31 and wear-resistant sleeve 17，Play the effect supporting torque arm 19，Torque arm 19 is used for connecting permanent magnetic disk 1 and permanent magnetic disk 1 ＇，Permanent magnetic disk 1 and permanent magnetic disk 1 ＇ are linked into an integrated entity，Synchronous axial system.Move before and after the rotation of worm screw 10 is converted into push pedal 6, finally realize the regulation of air gap.The drive end of worm screw 10 can connect servomotor, hydraulic motor or handwheel, it is achieved automatically controls or Non-follow control, can select according to the frequent degree that speed governing operates.Owing to worm couple has latching characteristics, when the lead angle of worm screw is less than when engaging the equivalent friction angle taking turns between cog, reverse self-locking can be realized, play safeguard protection effect, can effectively prevent the generation of " patch dish " accident.
It is smooth and easy that stress in order to balance push pedal 6 makes push pedal move, other end perforate in push pedal 6 is slidably connected with push pedal support shaft 13, and the axle head of push pedal support shaft 13 and pedestal 4 are connected and fixed, the center line keeping push pedal support shaft 13 is parallel to the center line of leading screw 12 all the time, make push pedal 6 as far as possible stress balance in translation motion, it is to avoid block.It in order to avoid push pedal support shaft 13 surface abrasion affects the service life of device, in push pedal 6 perforate, is provided with lining 14.In like manner, it in order to reduce the abrasion to pedestal 4 for the moving shaft holder 7, between moving shaft holder 7 and pedestal 4, is provided with fixed cover 18.
The core of the present invention is the relative moving mechanism of cage type assembly one and cage type assembly two, the position of cage type assembly one and cage type assembly two does not limits, when cage type assembly one is positioned on main shaft, said structure is applied equally to moving axially by air gap governor motion tractive cage type assembly one, it is achieved the regulation of air gap.
See Fig. 2, it is a kind of high-power permanent magnet variable-speed clutch embodiment two structural representation of the present invention, require from application scenario to consider, permanent magnetic disk and conductor disc are to more, the driving power being suitable for is bigger, but limited by installing space, permanent magnetic disk and conductor disc quantity is set with 2～8 to being advisable, 2～5 in the range of should have good application prospect.Embodiment two is by the corresponding labels 101～104 of 4 permanent magnetic disk 1() label 201～204 corresponding with 4 conductor disc 2() pairing structure that forms.
Each conductor disc is then linked to be cage type assembly one by metal connecting piece, it is achieved synchronous rotary.Adjacent permanent magnet dish is connected to form cage type assembly two by torque arm 19, it is achieved synchronizing moving and rotation.Air gap governor motion operation principle is with embodiment one.
In order to mitigate the vibration problem of main shaft cantilever, one end of main shaft 5 to arrange one section of extension 33, until the junction of conductor disc and motor side shaft coupling 20, it is therefore an objective to formed between conductor disc and main shaft and radially support.In like manner, the cantilever end at cage type assembly one also radially can support with being connected between dish setting.
It in above-described embodiment, in moving shaft holder 7, is provided with angular contact ball bearing 21, the both transmission as axial force, the supporting role of radial direction can also be realized simultaneously.It is provided with fixed bearing block 22 between the load-side and pedestal 4 of main shaft 5, in fixed bearing block 22, is provided with the bearing group being made up of radial ball bearing 23 and angular contact ball bearing 24, meet radial load and the balance shifting to power.
See Fig. 3, in order to make frictional resistance less further, linear bearing 15 can also be set between push pedal support shaft 13 and push pedal 6, so can more effectively avoid the clamping stagnation problem of the eccentric force of push pedal.Linear bearing 15 is held in push pedal 6 by two pieces of baffle plates 16, and this structure can make the movement of push pedal smooth and easy, and air gap regulation is sensitiveer.One end of push pedal support shaft 13 is fixed on pedestal 4, and moving shaft holder 7 is connected with push pedal 6.
See Fig. 4, it is provided with bearing 25 between leading screw 12 end and pedestal 4, bearing 25 can be sliding bearing or rolling bearing, more convenient in order to make bearing 25 change, being provided with seat ring 26 between bearing 25 and pedestal 4, the outside of seat ring 26 is provided with dust cap 27, prevents foreign matter from entering in bearing, meanwhile, the inner side of seat ring 26 can also realize the position-limiting action to push pedal 6.When air gap between permanent magnetic disk and conductor disc is minimum, the shrouding 30 of fixing thread bush 11 withstands seat ring 26；When air gap between permanent magnetic disk and conductor disc is maximum, push pedal 6 is withstood fixed bearing block 22 and is realized spacing, so that the flexible modulation of air gap, and then the regulation of load speed can be realized.
See Fig. 5, torque arm 19 is provided with bearing 28 with being connected between dish 3, bearing 28 is loaded by connection dish 3 side, then blocked spacing by block plate 29, bearing 28 can be sliding bearing or rolling bearing, when permanent magnetic disk 1 moves, bearing 28 can reduce the frictional force between connection dish 3 and torque arm 19, makes air gap regulation more smooth and easy.
According to the distributed quantity of permanent magnetic disk (or conductor disc), the quantity of connection dish 3 can be two or more, it is therefore an objective to provides the rigid support of sufficient intensity, it is ensured that permanent magnetic disk (or conductor disc) reliable mobile.
Embodiment described above is only the instantiation chosen for describing the purpose of the present invention, technical scheme and beneficial effect in detail; but should in no way limit protection scope of the present invention; all on the premise of without prejudice to the spirit and principles in the present invention; various modifications, equivalent and the improvement made, all should fall under the scope of the present invention.
Claims (10)
1. a high-power permanent magnet variable-speed clutch, including permanent magnetic disk and conductor disc, leaves air gap between permanent magnetic disk and conductor disc, it is characterised in that described permanent magnetic disk is arranged with conductor disc pairing, and permanent magnetic disk is respectively positioned on the homonymy of pairing conductor disc；The quantity that arranges of described permanent magnetic disk and conductor disc is 2～8 right, each conductor disc is sequentially connected with by connector and forms cage type assembly one, each permanent magnetic disk is sequentially connected composition cage type assembly two by torque arm, described cage type assembly two is connected with air gap governor motion, during air gap regulation, the moving direction of each permanent magnetic disk is consistent.
2. a kind of high-power permanent magnet variable-speed clutch according to claim 1, it is characterized in that, described air gap governor motion includes push pedal, moving shaft holder, movable sleeving, main shaft, pedestal, worm gear and worm screw, movable sleeving is located on main shaft, movable sleeving peripheral hardware moving shaft holder, movable sleeving connects cage type assembly two, cage type assembly two is positioned at one end of main shaft, moving shaft holder connects push pedal, one end of push pedal is provided with thread bush, thread bush matches with leading screw, and leading screw is coaxially connected with worm gear, worm and wheel composition regulation transmission.
3. a kind of high-power permanent magnet variable-speed clutch according to claim 2, it is characterised in that one end of described main shaft is provided with extension, arranges and radially support between this extension and cage type assembly one.
4. a high-power permanent magnet variable-speed clutch, including permanent magnetic disk and conductor disc, leaves air gap between permanent magnetic disk and conductor disc, it is characterised in that described permanent magnetic disk is arranged with conductor disc pairing, and permanent magnetic disk is respectively positioned on the homonymy of pairing conductor disc；The quantity that arranges of described permanent magnetic disk and conductor disc is 2～8 right, each conductor disc is sequentially connected with by connector and forms cage type assembly one, each permanent magnetic disk is sequentially connected composition cage type assembly two by torque arm, described cage type assembly one is connected with air gap governor motion, during air gap regulation, the moving direction of each conductor disc is consistent.
5. a kind of high-power permanent magnet variable-speed clutch according to claim 4, it is characterized in that, described air gap governor motion includes push pedal, moving shaft holder, movable sleeving, main shaft, pedestal, worm gear and worm screw, movable sleeving is located on main shaft, movable sleeving peripheral hardware moving shaft holder, movable sleeving connects cage type assembly one, cage type assembly one is positioned at one end of main shaft, moving shaft holder connects push pedal, one end of push pedal is provided with thread bush, thread bush matches with leading screw, and leading screw is coaxially connected with worm gear, worm and wheel composition regulation transmission.
6. a kind of high-power permanent magnet variable-speed clutch according to claim 5, it is characterised in that one end of described main shaft is provided with extension, arranges and radially support between this extension and cage type assembly two.
7. a kind of high-power permanent magnet variable-speed clutch according to claim 2 or 5, it is characterised in that described main shaft is provided with connection dish, and connection dish is fixed relative to position with main shaft.
8. a kind of high-power permanent magnet variable-speed clutch according to claim 2 or 5, it is characterized in that, other end perforate and the support shaft of described push pedal are slidably connected, and the axle head of support shaft is connected fixing with pedestal, and the centerline parallel of described support shaft is in the center line of leading screw.
9. a kind of high-power permanent magnet variable-speed clutch according to claim 8, it is characterised in that be provided with bearing between described support shaft and push pedal.
10. a kind of high-power permanent magnet variable-speed clutch according to claim 2 or 5, it is characterised in that the drive end of described worm screw connects servomotor, hydraulic motor or handwheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510381246.2A CN105990986A (en) | 2015-07-03 | 2015-07-03 | Large-power permanent magnet clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510381246.2A CN105990986A (en) | 2015-07-03 | 2015-07-03 | Large-power permanent magnet clutch |
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| CN105990986A true CN105990986A (en) | 2016-10-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510381246.2A Pending CN105990986A (en) | 2015-07-03 | 2015-07-03 | Large-power permanent magnet clutch |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107359778A (en) * | 2017-09-18 | 2017-11-17 | 上海市东方海事工程技术有限公司 | A kind of buffer starting type permanent magnetic coupling |
| CN109274247A (en) * | 2018-11-09 | 2019-01-25 | 安徽沃弗电力科技有限公司 | Permanent magnet gearbox |
| CN109450220A (en) * | 2018-12-20 | 2019-03-08 | 北京必可测科技股份有限公司 | A kind of high-power Wind-cooling type permanent magnetic coupling |
| CN110176849A (en) * | 2019-06-14 | 2019-08-27 | 安徽沃弗电力科技有限公司 | A kind of single side transmission air-cooled permanent-magnet speed governor |
| CN116566163A (en) * | 2023-07-06 | 2023-08-08 | 河北工程大学 | A disc type combined permanent magnet governor |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107359778A (en) * | 2017-09-18 | 2017-11-17 | 上海市东方海事工程技术有限公司 | A kind of buffer starting type permanent magnetic coupling |
| CN109274247A (en) * | 2018-11-09 | 2019-01-25 | 安徽沃弗电力科技有限公司 | Permanent magnet gearbox |
| CN109450220A (en) * | 2018-12-20 | 2019-03-08 | 北京必可测科技股份有限公司 | A kind of high-power Wind-cooling type permanent magnetic coupling |
| CN109450220B (en) * | 2018-12-20 | 2023-08-29 | 北京必可测科技股份有限公司 | High-power wind-cooling permanent magnet coupler |
| CN110176849A (en) * | 2019-06-14 | 2019-08-27 | 安徽沃弗电力科技有限公司 | A kind of single side transmission air-cooled permanent-magnet speed governor |
| CN110176849B (en) * | 2019-06-14 | 2024-01-26 | 安徽沃弗永磁科技有限公司 | Single-face transmission air-cooled permanent magnet speed regulator |
| CN116566163A (en) * | 2023-07-06 | 2023-08-08 | 河北工程大学 | A disc type combined permanent magnet governor |
| CN116566163B (en) * | 2023-07-06 | 2023-09-08 | 河北工程大学 | Disc type combined permanent magnet speed regulator |
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Application publication date: 20161005 |