CN108631546A - A kind of novel adjustable speed disc type asynchronous magnetic coupler - Google Patents
A kind of novel adjustable speed disc type asynchronous magnetic coupler Download PDFInfo
- Publication number
- CN108631546A CN108631546A CN201810872097.3A CN201810872097A CN108631546A CN 108631546 A CN108631546 A CN 108631546A CN 201810872097 A CN201810872097 A CN 201810872097A CN 108631546 A CN108631546 A CN 108631546A
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- China
- Prior art keywords
- magnetism body
- permanent magnetism
- permanent magnet
- disk
- shaft
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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
- H02K49/10—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
- H02K49/108—Magnetic couplings consisting of only two coaxial rotary elements, i.e. the driving element and the driven element with an axial air gap
Abstract
The present invention relates to mechanical engineering drive technology fields, refer in particular to a kind of novel adjustable speed disc type asynchronous magnetic coupler.Including input shaft, splined shaft, heat dissipation plate, permanent magnet yoke disk, permanent magnetism body disc, copper conductor disk, transmission shaft, output shaft；Input shaft, splined shaft, transmission shaft and output shaft are located at same axis, and are sequentially arranged to output end along input terminal；Copper conductor disk is mounted on transmission shaft, is set between two permanent magnetism body discs, and air gap is equipped between two permanent magnetism body discs and copper conductor disk；Heat dissipation plate includes master end heat dissipation plate and two parts of slave end heat dissipation plate, is fixed on the permanent magnet yoke disk of both sides by bolt, is rotate in same direction with input terminal respectively.The present invention passes through the permanent magnet in driving and driven side installation different materials, it can ensure that magnetic coupling can work normally at high temperature, axial force between balance copper conductor disc that can be adaptive and permanent magnetism body disc simultaneously, from the control accuracy for largely reducing installation difficulty and speed adjusting gear.
Description
Technical field
The present invention relates to mechanical engineering drive technology fields, refer in particular to a kind of novel adjustable speed disc type asynchronous magnetic coupler,
Power between the motor being mainly used in the industries such as coal, power generation, chemical industry and load transmits.
Background technology
Magnetic coupling is a kind of novel non-contact permanent magnet driving device, it eliminates dynamic close in transmission device
Envelope realizes static seal, zero leakage, it can be achieved that the transmission of non-contacting power, to reduce mechanical friction and abrasion, avoids
The interference of vibration reduces the loss of transmission parts.
Magnetic coupling is divided into the copper conductor rotor being connected with input terminal and the PM rotor being connected with output end, passes through
Air gap between adjustment copper conductor rotor and PM rotor adjusts the torque of output, to realizing speed governing purpose, for can
The asynchronous magnetic coupler of speed governing type can also realize the functions such as soft start and the overload protection of motor, be widely used in coal
The industries such as charcoal, power generation, chemical industry.
Above-mentioned magnetic coupling has the following defects：1) since there are slips between permanent magnetism body disc and copper conductor disk, work as magnetic
After mechanical couple works long hours, eddy-current loss will produce a large amount of heat, and permanent magnetism body disc will appear Wen Sheng, and permanent-magnet material multiselect
It is selected as neodymium iron boron (NdFeB), the permanent-magnet material Curie point is relatively low, and temperature characterisitic is poor, the permanent magnetism under high temperature in p-m rotor
Know from experience and demagnetization phenomenon occur, to influence its normal work；2) due to the limitation of size of gaps and apparatus structure, magnetic coupling
Rotational speed regulation range is small；3) in the course of work, the axial force between balance copper conductor rotor and PM rotor is needed, therefore tight
Lattice control the size of both sides air gap, and not only installation accuracy is higher, also there is higher required precision to speed adjusting gear.
Invention content
The present invention is in view of the foregoing drawbacks, it is therefore an objective to a kind of novel adjustable speed disc type asynchronous magnetic coupler is provided, certain
The temperature characterisitic of permanent magnet is improved in degree, it is ensured that magnetic coupling can work normally, while solve installation and speed governing
The high problem of required precision, increases the speed adjustable range of magnetic coupling, improves transmission efficiency.
The present invention realizes that goal of the invention adopts the following technical scheme that：
A kind of novel adjustable speed disc type asynchronous magnetic coupler, including input shaft, splined shaft, heat dissipation plate, permanent magnet yoke
Disk, permanent magnetism body disc, copper conductor disk, transmission shaft, output shaft；The input shaft, splined shaft, transmission shaft and output shaft are located at same axis
Line, and be sequentially arranged to output end along input terminal；The input shaft passes through input terminal expansion set and input terminal ring flange with splined shaft
Connection, tightening input terminal expansion set can be such that input shaft is in close contact with input terminal ring flange, and input terminal ring flange passes through with splined shaft
It is bolted, one side structure of output end is similar；The permanent magnetism body disc includes master end permanent magnetism body disc and slave end permanent magnet
Disk, permanent magnet by the poles N, the poles S even number is alternate is closely embedded in the deep trouth of permanent magnet panel surface, each permanent magnetism body disc passes through bolt
It is fixedly connected with permanent magnet yoke disk, two permanent magnet yoke disks are connected by double thread leading screw；The copper conductor disk installation
It on transmission shaft, is set between two permanent magnetism body discs, and is equipped with air gap between two permanent magnetism body discs and copper conductor disk；The heat dissipation plate
Including master end heat dissipation plate and two parts of slave end heat dissipation plate, it is fixed on the permanent magnet yoke disk of both sides by bolt respectively,
It is rotate in same direction with input terminal.
Further, the splined shaft is equipped with axle sleeve, and axle sleeve is fixed in master end permanent magnet yoke disk, and axis by bolt
It covers one end and is equipped with end cover, axle sleeve can slide certain distance in left and right on splined shaft.
Further, the master end permanent magnetism body disc and slave end permanent magnetism body disc install and use the permanent magnetism of different materials respectively
The permanent magnet I materials of body, master end permanent magnetism body disc use 2 cobalt of samarium, 17 (Sm2Co17), the permanent magnet II materials of slave end permanent magnetism body disc
Material selects neodymium iron boron (NdFeB).
Further, ball spline is installed on the transmission shaft, left and right ends are also provided with locking groove on transmission shaft, allow to roll
Spline or so slides certain distance, and the ball spline is with copper conductor disk using interference fit.
Further, double thread leading screw both ends have the oppositely oriented screw thread of certain distance, thread pitch value
Design is respectively provided with feed screw nut in 0.8mm~1mm on driving and driven side permanent magnet yoke disk, matches with double thread leading screw
It closes and uses, when double thread leading screw is rotated around own axes, driving and driven side permanent magnetism body disc can be along magnetic coupling transmission shaft phase
To or be moved away from, to change the size of air gap between permanent magnetism body disc and copper conductor disk.
Further, the double thread leading screw is circumscribed with pid control module, including servomotor, gear reducer structure, signal control
Device processed, sensor, servo motor can drive double thread leading screw to rotate.
Advantageous effect：
Compared with prior art, the present invention advantage is embodied in：
1) permanent magnet material of permanent magnetism body disc in master end of the present invention uses 2 cobalt of samarium, 17 (Sm2Co17), slave end permanent magnetism body disc
Permanent magnet material select neodymium iron boron (NdFeB), the residual flux density and coercivity of two kinds of materials are very nearly the same, but Sm2Co17Material
Curie temperature up to 800~850 DEG C, to alleviate the demagnetization problem under NdFeB material at high temperature, it can be ensured that magnetic coupling
It can work normally；
2) present invention is equipped with ball spline on transmission shaft, and left and right ends are also provided with locking groove on transmission shaft, allow to roll
Spline or so slides certain distance, i.e. copper conductor rotor can control sliding, balance copper conductor disc and permanent magnetism that can be adaptive
Axial force between body disc, from the control accuracy for largely reducing installation difficulty and speed adjusting gear；
3) the configuration of the present invention is simple, adjustable air gap distance is long, to which magnetic coupling rotational speed regulation range is larger.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the deep groove structure schematic diagram of permanent magnetism body disc；
Fig. 3 is the fin distribution schematic diagram of master end heat dissipation plate.
Parts mark in patent of the present invention is done as described below：1, input shaft；2a, input terminal expansion set；2b, output end
Expansion set；3a, input terminal ring flange；3b, output flange disk；4, splined shaft；5, axle sleeve；6, feed screw nut；7, double thread silk
Thick stick；8a, master end permanent magnetism body disc；8b, slave end permanent magnetism body disc；9a, permanent magnet I (Sm2Co17)；9b, permanent magnet II (NdFeB)；
10, copper conductor disk；11a, master end permanent magnet yoke disk；11b, slave end permanent magnet yoke disk；12a, master end heat dissipation plate；
12b, slave end heat dissipation plate；13, transmission shaft；14, output shaft；15, ball spline；16, end cover；17, bolt.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The embodiment of the present invention：A kind of novel adjustable speed disc type asynchronous magnetic coupler, including input shaft 1, splined shaft 4,
Heat dissipation plate 12, permanent magnet yoke disk 11, permanent magnetism body disc 8, copper conductor disk 10, transmission shaft 13, output shaft 14；The input shaft 1, flower
Key axis 4, transmission shaft 13 and output shaft 14 are located at same axis, and are sequentially arranged to output end along input terminal；The input shaft 1 with
Splined shaft 4 is connected by input terminal expansion set 2a with input terminal ring flange 3a, and input shaft 1 and input can be made by tightening input terminal expansion set 2a
End flanges disk 3a is in close contact, and input terminal ring flange 3a is bolted with splined shaft 4, one side structure of output end with it is such
Seemingly；The permanent magnetism body disc 8 includes master end permanent magnetism body disc 8a and slave end permanent magnetism body disc 8b, and permanent magnet 9 is by the poles N, the poles S even number phase
Between be closely embedded in the deep trouth on 8 surface of permanent magnetism body disc, permanent magnetism body disc 8 has been bolted to connection permanent magnet yoke disk 11,
Permanent magnet yoke disk 11 is connected by double thread leading screw 7；The copper conductor disk 10 is mounted on transmission shaft 13, is set to two forever
Between magnet disk 8, and air gap is equipped between permanent magnetism body disc 8 and copper conductor disk 10；The heat dissipation plate 12 includes master end heat dissipation plate
12a and two parts slave end heat dissipation plate 12b, are fixed on both sides permanent magnet yoke disk 11 respectively by bolt, with input terminal
It rotates in same direction.The splined shaft 4 is equipped with axle sleeve 5, and axle sleeve 5 is fixed in master end permanent magnet yoke disk 11a by bolt 17, and
5 one end of axle sleeve is equipped with end cover 16, and axle sleeve 5 can slide certain distance in left and right on splined shaft 4.The master end permanent magnetism body disc
8a and slave end permanent magnetism body disc 8b installs and uses the permanent magnet 9 of different materials, the permanent magnet I9a materials of master end permanent magnetism body disc respectively
Material uses 2 cobalt of samarium, 17 (Sm2Co17), the permanent magnet II9b material selections neodymium iron boron (NdFeB) of slave end permanent magnetism body disc.The biography
Ball spline 15 is installed, left and right ends are also provided with locking groove on transmission shaft 13, allow ball spline 15 or so sliding on moving axis 13
Certain distance is moved, the ball spline 15 is with copper conductor disk 10 using interference fit.It opens respectively at 7 both ends of double thread leading screw
There are the screw thread that certain distance is oppositely oriented, thread pitch value to design in 0.8mm~1mm, and in driving and driven side permanent magnet yoke disk
It is respectively provided with feed screw nut 6 on 11, is used cooperatively with double thread leading screw 7, when double thread leading screw 7 is rotated around own axes
When, driving and driven side permanent magnetism body disc 8 can be along magnetic coupling transmission shaft towards or away from moving, to change permanent magnetism body disc 8 and copper
The size of air gap between conductor disc 10.The double thread leading screw outer 7 is connected to pid control module, including servomotor, gear reducer
Structure, signal controller, sensor, servo motor can drive double thread leading screw 7 to rotate.
The course of work：
When magnetic coupling starts, driving motor gives input shaft 1 one input speeds, passes through input terminal expansion set 2a and input
The cooperation of end flanges disk 3a drives splined shaft 4 to rotate, and input speed is transmitted to permanent magnetism body disc 8 by splined shaft 4 by axle sleeve 6, by
In the presence of slip, copper conductor disk 10 will be with driving motor rotating Vortex, and then transmits torque to the output shaft of output end
14.In operational process, copper conductor disk 10 can left and right slides on transmission shaft 13 with ball spline 15, to adaptive balance
The axial force of both sides；After stable, drive double thread leading screw 7 to be rotated around own axes by control servomotor, change
Size of gaps between driving and driven side permanent magnetism body disc 8 and copper conductor disk 10, and then the output rotating speed of regulation output shaft 14, reach
Speed governing purpose.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Profit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent requirements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiment being appreciated that.
Claims (6)
1. a kind of novel adjustable speed disc type asynchronous magnetic coupler, including input shaft, splined shaft, heat dissipation plate, permanent magnet yoke disk,
Permanent magnetism body disc, copper conductor disk, transmission shaft, output shaft, it is characterised in that：The input shaft, splined shaft, transmission shaft and output axle position
It is sequentially arranged to output end in same axis, and along input terminal；The input shaft passes through input terminal expansion set and input with splined shaft
End flanges disk connects, and tightening input terminal expansion set can be such that input shaft is in close contact with input terminal ring flange, input terminal ring flange and flower
Key axis is bolted, and one side structure of output end is similar；The permanent magnetism body disc includes master end permanent magnetism body disc and driven
Side permanent magnetism body disc, permanent magnet by the poles N, the poles S even number is alternate is closely embedded in the deep trouth of permanent magnet panel surface, each permanent magnetism body disc
It is bolted to connection permanent magnet yoke disk, two permanent magnet yoke disks are connected by double thread leading screw；The copper is led
Body disc is mounted on transmission shaft, is set between two permanent magnetism body discs, and air gap is equipped between two permanent magnetism body discs and copper conductor disk；Institute
It includes master end heat dissipation plate and two parts of slave end heat dissipation plate to state heat dissipation plate, is fixed in both sides permanent magnet yoke by bolt respectively
On iron pan, rotate in same direction with input terminal.
2. a kind of novel adjustable speed disc type asynchronous magnetic coupler according to claim 1, it is characterised in that：The spline
Axis is equipped with axle sleeve, and axle sleeve is fixed in master end permanent magnet yoke disk by bolt, and axle sleeve one end is equipped with end cover, axle sleeve
Certain distance can be slid on splined shaft in left and right.
3. a kind of novel adjustable speed disc type asynchronous magnetic coupler according to claim 1, it is characterised in that：The active
Side permanent magnetism body disc and slave end permanent magnetism body disc install and use the permanent magnet of different materials, the permanent magnet of master end permanent magnetism body disc respectively
I materials use 2 cobalt of samarium, 17 (Sm2Co17), the permanent magnet II material selections neodymium iron boron (NdFeB) of slave end permanent magnetism body disc.
4. a kind of novel adjustable speed disc type asynchronous magnetic coupler according to claim 1, it is characterised in that：The transmission
Ball spline is installed on axis, left and right ends are also provided with locking groove on transmission shaft, allow ball spline or so sliding certain distance,
The ball spline is with copper conductor disk using interference fit.
5. a kind of novel adjustable speed disc type asynchronous magnetic coupler according to claim 1, it is characterised in that：The double end
Thread lead screw both ends have an oppositely oriented screw thread of certain distance, and thread pitch value is designed in 0.8mm~1mm, and master,
Be respectively provided with feed screw nut on slave end permanent magnet yoke disk, be used cooperatively with double thread leading screw, when double thread leading screw around
When own axes rotate, driving and driven side permanent magnetism body disc can be along magnetic coupling transmission shaft towards or away from moving, to change forever
The size of air gap between magnet disk and copper conductor disk.
6. a kind of novel adjustable speed disc type asynchronous magnetic coupler according to claim 1 or 5, it is characterised in that：It is described
Double thread leading screw is circumscribed with pid control module, including servomotor, gear reducer structure, signal controller, sensor, servo electricity
Machine can drive double thread leading screw to rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810872097.3A CN108631546A (en) | 2018-08-02 | 2018-08-02 | A kind of novel adjustable speed disc type asynchronous magnetic coupler |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810872097.3A CN108631546A (en) | 2018-08-02 | 2018-08-02 | A kind of novel adjustable speed disc type asynchronous magnetic coupler |
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| CN108631546A true CN108631546A (en) | 2018-10-09 |
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|---|---|---|---|
| CN201810872097.3A Pending CN108631546A (en) | 2018-08-02 | 2018-08-02 | A kind of novel adjustable speed disc type asynchronous magnetic coupler |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109617363A (en) * | 2018-10-30 | 2019-04-12 | 江苏科岭能源科技有限公司 | A kind of elongated cylinder permanent magnetic coupling of high speed |
| CN110457733A (en) * | 2019-06-03 | 2019-11-15 | 大连理工大学 | A kind of quick calculation method of permanent magnetic coupling axial force |
| CN110518779A (en) * | 2019-08-08 | 2019-11-29 | 大连理工大学 | A kind of magnetic coupling maximum axial force calculation method |
| CN111371283A (en) * | 2020-02-27 | 2020-07-03 | 江苏大学 | Magnet moving type cylinder speed-adjustable magnetic coupler |
| CN112436673A (en) * | 2020-12-03 | 2021-03-02 | 大连交通大学 | Magnetic stepless speed regulator for differentially adjusting magnetic gap |
| CN112727721A (en) * | 2021-02-06 | 2021-04-30 | 秦皇岛诚捷科技有限公司 | Permanent magnet disc type closed swash plate type axial plunger pump and working method thereof |
| CN113541440A (en) * | 2021-09-07 | 2021-10-22 | 南京华脉科技股份有限公司 | Novel magnetic force safety type coupler |
| CN114069966A (en) * | 2021-11-05 | 2022-02-18 | 立马车业集团有限公司 | Hub motor with heat dissipation device |
| CN114104857A (en) * | 2022-01-24 | 2022-03-01 | 纽泰克斯电线（潍坊）有限公司 | Intelligent cable tensioning device |
| CN116995887A (en) * | 2023-09-27 | 2023-11-03 | 深圳市鸿明机电有限公司 | High-efficiency magnetic coupler based on flexible circuit board and flux synchronization and manufacturing method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109617363A (en) * | 2018-10-30 | 2019-04-12 | 江苏科岭能源科技有限公司 | A kind of elongated cylinder permanent magnetic coupling of high speed |
| 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 |
| CN110457733A (en) * | 2019-06-03 | 2019-11-15 | 大连理工大学 | A kind of quick calculation method of permanent magnetic coupling axial force |
| CN110457733B (en) * | 2019-06-03 | 2020-11-13 | 大连理工大学 | Rapid calculation method for axial force of permanent magnet coupler |
| CN110518779A (en) * | 2019-08-08 | 2019-11-29 | 大连理工大学 | A kind of magnetic coupling maximum axial force calculation method |
| CN111371283B (en) * | 2020-02-27 | 2021-12-21 | 江苏大学 | Magnet moving type cylinder speed-adjustable magnetic coupler |
| CN111371283A (en) * | 2020-02-27 | 2020-07-03 | 江苏大学 | Magnet moving type cylinder speed-adjustable magnetic coupler |
| CN112436673A (en) * | 2020-12-03 | 2021-03-02 | 大连交通大学 | Magnetic stepless speed regulator for differentially adjusting magnetic gap |
| CN112727721A (en) * | 2021-02-06 | 2021-04-30 | 秦皇岛诚捷科技有限公司 | Permanent magnet disc type closed swash plate type axial plunger pump and working method thereof |
| CN113541440A (en) * | 2021-09-07 | 2021-10-22 | 南京华脉科技股份有限公司 | Novel magnetic force safety type coupler |
| CN114069966A (en) * | 2021-11-05 | 2022-02-18 | 立马车业集团有限公司 | Hub motor with heat dissipation device |
| CN114104857A (en) * | 2022-01-24 | 2022-03-01 | 纽泰克斯电线（潍坊）有限公司 | Intelligent cable tensioning device |
| CN116995887A (en) * | 2023-09-27 | 2023-11-03 | 深圳市鸿明机电有限公司 | High-efficiency magnetic coupler based on flexible circuit board and flux synchronization and manufacturing method |
| CN116995887B (en) * | 2023-09-27 | 2023-12-15 | 深圳市鸿明机电有限公司 | High-efficiency magnetic coupler based on flexible circuit board and flux synchronization and manufacturing method |
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Application publication date: 20181009 |