CN107979262A - Permanent magnet eddy current coupling - Google Patents
Permanent magnet eddy current coupling Download PDFInfo
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- CN107979262A CN107979262A CN201510028634.2A CN201510028634A CN107979262A CN 107979262 A CN107979262 A CN 107979262A CN 201510028634 A CN201510028634 A CN 201510028634A CN 107979262 A CN107979262 A CN 107979262A
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- permanent magnet
- eddy current
- current coupling
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Abstract
The present invention provides a kind of permanent magnet eddy current coupling, it can be achieved that efficiently moment of torsion transmission (efficiency is up to 98%), steady moment of torsion transmission (fluctuation is no more than 0.5%), including：The multiple that permanent magnet, its number or group number are 4, auxiliary to magnetizing, wedge shape is embedded in power rotor, effectively reduces the vibration produced by installation there are gap and noise；Driven rotor, is designed with helicla flute so that output torque has high stationarity, weakens vibration when system works and noise significantly, and forms cross-ventilation, takes away amount of heat, efficiently solves heating problem；Axial moving mechanism, by the way of Electric Actuator and piston shoes coordinate, Electric Actuator both ends are connected using ball；Air filter, reduces such as pollution of ferromagnetic particle, coal dust airborne suspended particle to system；Many advantages, such as there is the present invention maintenance cost low (no vulnerable part, cleaning frequency are low), green energy conservation, flexibility to start, generate heat less, speed-regulating range width, is of great significance energy-saving and emission-reduction.
Description
Technical field
The present invention relates to a kind of permanent magnet eddy current coupling.
Background technology
China natural resources are enriched, and are production capacity big countries, but are also energy consumption big country at the same time, and the energy, the wasting of resources are existing
As serious, utilization rate is relatively low, and saving the energy reduces the hot spot that consumption has become social concerns, also becomes
The major issue that must take into consideration in design process.Pumping the equipment such as class motor and wind turbine is applied in social production
Extremely wide, its energy consumed ratio shared in social total energy consumption is very big, accounts for 31.3%.By
In China, there is certain deficiency in used pump class motor and wind turbine now in design, especially large-scale
In driving equipment, also relatively fall behind compared with developed countries, and motor during load matched with passing through
Often the phenomenon of " low load with strong power ", energy waste are serious.Permanent magnet clutch is one kind of shaft coupling, is belonged to
In contactless.It with common machenical coupling difference lies in it without directly to mechanically connect, but
Using electromagnetic principles, realize the purpose for transmitting mechanical energy, be a kind of novel coupler, there is machinery
The advantages of shaft coupling is incomparable.It can contactlessly transmit moment of torsion, and electrodeless adjustment loads rotating speed,
Realize that magnetic transmits torque, magnetic torque, the control for transmitting power, greatly reduce frictional dissipation, vibration damage
Consumption, is significantly increased energy utilization rate, while when loading overload, master and slave rotating ring produces to trackslip relatively,
Solve the problems, such as overload protection, the effect of protection mechanical system is realized, so as to improve system adjustment
Reliability, while also solve a series of problems, such as centering, soft start.
Current existing permanent magnet eddy current coupling mainly has radially (disc type) permanent magnet eddy current coupling and axial (cylinder
Formula) permanent magnet eddy current coupling, desk permanent-magnet eddy-current coupling by adjusting air gap come output rotating speed regulation and
Output torque, it is allowed to which input and output Shaft misalignment can arrive 5mm, much about cartridge type permanent-magnet eddy current shaft coupling
Device misaligns the requirement of 1mm, but under identical volume, the maximum delivered of cartridge type permanent magnet eddy current coupling
Torque ratio desk permanent-magnet eddy-current coupling is high by 20%, and cartridge type permanent magnet eddy current coupling is than the noise of disc type
Low 15-30dB, it is often more important that the axial movement value that cartridge type permanent magnet eddy current coupling allows is 5mm, and
Disc type is only 0.7mm, therefore the developing direction of the type shaft coupling is mainly cartridge type permanent-magnet eddy current shaft coupling
Device, especially power plant, mining machinery, steel and iron industry etc. be high-power, occasions of bad environments.But
Be at present for cartridge type permanent magnet eddy current coupling main direction of studying how to improve permanent-magnet eddy current shaft coupling
The transmission torque of device, and research is less and right in terms of the stationarity of torque is transmitted to it and reduces noise
In powerful cartridge type permanent magnet eddy current coupling, using by the way of cold by force, i.e., the mode that solves fever is
Increase cost, but the complexity for increasing product structure reduces the reliability of product, and can realize and lead,
Follower firm supporting, and can realize the mechanical structure that driving and driven mechanism is axially moveable, in the market
Do not occur still.
The content of the invention
In view of the above problems, the object of the present invention is to provide a kind of permanent magnet eddy current coupling, with it is existing specially
Sharp technology is compared, and the stationarity of moment of torsion transmission is significantly increased, and on the premise of mechanism is not increased, from
Body formed cross-ventilation, efficiently solve heating problem, be applicable to power grid quality is poor, humidity greatly, powder
Dirt, inflammable and explosive environment also meet requirement in the case of even " shaking electricity ", have green section
Energy, No Load Start, start the time it is short, fever less, speed-regulating range width many advantages, such as.
For this reason, the present invention provides a kind of permanent magnet eddy current coupling, including：Driving mechanism, including actively turn
Son, permanent magnet, shielding lining etc., the permanent magnet wedge shape is embedded in power rotor so that permanent magnet
It is more firm with power rotor cooperation in power rotor rotation process, effectively reduce because installation exists
The vibration and noise that gap produces；The power rotor uses non-magnet material, and shielding lining uses magnetic conduction
Material, optimizes the thickness of power rotor, i.e., increases driven rotor magnetic field intensity to greatest extent, and effectively
The reduction electromagnetic pollution on ground；Follower, including driven rotor, permanent-magnetic clamp, inside lining sleeve, double-row bearing,
Linear bearing and positioning bushing etc., the driven rotor is designed with helicla flute so that system output torque has
There is high stationarity, weaken vibration and noise of the permanent magnet eddy current coupling in startup and work significantly, and
Driven rotor forms cross-ventilation in rotation process, can take away amount of heat, efficiently solves fever and asks
Topic；The permanent-magnetic clamp, is designed with inclined-plane, reduces the influence to air flow circuit, and increase to greatest extent
Add effective contact area with air, adsorb the ferromagnetic particle in air to greatest extent, reduce to master
The pollution of permanent magnet on rotating ring；Axial moving mechanism, by the way of Electric Actuator and piston shoes coordinate,
The Electric Actuator both ends are connected using ball, that is, while realizing that follower is rotated with axial movement
Carry out, and efficiently reduce in rotation process to the lateral force of Electric Actuator；Fixed supporting mechanism,
Using duplex bearing plus between centers location structure, ensure main follower firm supporting, reduce axial float；Peace
Full cover, using permeability magnetic material, forms one layer of magnetic masking layer again, dirty to extraneous hardly generation electromagnetism
Dye；The safety guard both ends are designed with air filter, reduce such as ferromagnetic particle, coal dust air and hang
Pollution of the floating particles to permanent magnet eddy current coupling, the environment for greatly having widened permanent magnet eddy current coupling will
Ask, considerably reduce the cleaning time during use, save cost.
The permanent magnet can according to actual needs, using monoblock permanent magnet or polylith set of permanent magnets into one group forever
The multiple that magnet, permanent magnet number or group number are 4 so that radial wave power is cancelled out each other, and is effectively dropped
The fluctuation of low output torque；Preferably, the ratio between permanent magnet arc length and non-permanent magnet part arc length are between 3: 1
So it is the uniformity for ensureing air gap flux density so that moment of torsion is defeated using auxiliary to the mode of magnetizing between 3: 2
Go out more steadily, and ensure that magnet short-cut path does not occur as far as possible, maximally utilise magnetic field.
The driven rotor is designed with helical groove structure so that driven rotor teeth portion and product is corresponding reduces, tooth
Portion's magnetic density increase, specific magnetic loading increase, so that output torque increases, but what groove was opened
It is excessive excessive, teeth portion magnetic conductive area can be made too small, cause rotor flux density supersaturated, so as to cause average air
Gap flux density and output torque decline, and in order to make permanent magnet preferably coordinate with groove, reduce influence of fluctuations, spiral shell
The number of spin slot cannot make permanent magnet number or organize the multiple of number, generally take even number, and between permanent magnet
Between number or 1.1 to the 1.9 of group number, the ratio between spiral well width and depth are between 0.4 to 0.6；It is described
Helicla flute can effectively reduce the fluctuation of output torque, and within the specific limits, spiral radian is bigger, put down
Stability is better, and output torque reduces rapidly and fluctuates increase after radian exceeds certain value, and helicla flute is in axis
To both ends of the surface registration between 0.05 to 0.25.
There are air gap, the size of air gap between the driven rotor and power rotor to directly affect output torque
Size, consider mechanical processing assembling process in concentricity, the vibration in Machine Movement Process with
And air-gap field distribution, it is 1.8~3mm to be preferably chosen air gap.
Preferably, ensured between driven rotor spring bearing and linear bearing using wedge shape positioning bushing
The concentricity of driven rotor and power rotor, and it is easily installed adjustment.
Preferably, the Electric Actuator bottom is fastened on fixed supporting mechanism by ball, electronic
The other end of actuator is connected by ball to be connected with piston shoes, and slideway sheet body is fixed on end cap, and is accompanied
Motivation structure rotates together, and Electric Actuator both ends are connected using ball, significantly reduce Electric Actuator
Lateral force, Electric Actuator stretch drive follower be axially moveable, one of Electric Actuator
Using the control mode of position closed loop, two other Electric Actuator or multiple Electric Actuator using power with
With control mode, ensure that multiple Electric Actuator power outputs are identical, avoid the occurrence of tilting moment；And from
Ball linear bearing is designed between motivation structure and support shaft, reduces moving resistance.
The Electric Actuator can be chosen as permanent magnet eddy current coupling accessory according to actual requirement of engineering, i.e.,
When permanent magnet eddy current coupling is without speed-regulating function, Electric Actuator can not be configured, can so reduce use
Cost.
The input terminal of input shaft and the output terminal of output shaft can process keyway or spiral shell according to actual requirement of engineering
Line etc., it is versatile.
Permanent magnet eddy current coupling according to the present invention, it can be achieved that efficiently moment of torsion transmission (efficiency is up to 98%),
Steady moment of torsion transmission (fluctuation is no more than 0.5%), and itself forms cross-ventilation, efficiently solves hair
Heat problem, is applicable to that power grid quality is poor, humidity is big, dust, inflammable and explosive environment even " shake
Also meet requirement in the case of electricity ", it is versatile, suitable for vertical and horizontal transmission, there is dimension
Shield expense low (no vulnerable part, clear buy frequency low), green energy conservation, flexible start, start that the time is short, hair
Heat less, speed-regulating range width many advantages, such as, be of great significance to energy-saving and emission-reduction.
Brief description of the drawings
Fig. 1 is the appearance front view of permanent magnet eddy current coupling according to embodiment of the present invention；
Fig. 2 is the appearance left view of permanent magnet eddy current coupling according to embodiment of the present invention；
Fig. 3 is the appearance axonometric drawing of permanent magnet eddy current coupling according to embodiment of the present invention；
Fig. 4 is the front view of permanent magnet eddy current coupling according to embodiment of the present invention；
Fig. 5 is the axonometric drawing 1 of permanent magnet eddy current coupling according to embodiment of the present invention；
Fig. 6 is the axonometric drawing 1 of permanent magnet eddy current coupling according to embodiment of the present invention；
Fig. 7 is the sectional view of permanent magnet eddy current coupling according to embodiment of the present invention；
Fig. 8 is the axonometric drawing 1 of permanent magnet eddy current coupling according to another implementation of the invention；
Fig. 9 is the front view of permanent magnet eddy current coupling according to another implementation of the invention；
Figure 10 is the axonometric drawing 2 of permanent magnet eddy current coupling according to another implementation of the invention；
Figure 11 is the main follower master of permanent magnet eddy current coupling according to embodiment of the present invention
View；
Figure 12 is the main follower axis of permanent magnet eddy current coupling according to embodiment of the present invention
Mapping；
Figure 13 is a kind of arrangement of permanent magnet eddy current coupling according to embodiment of the present invention；
Figure 14 is permanent magnet eddy current coupling another kind arrangement according to embodiment of the present invention；
Figure 15 is permanent magnet eddy current coupling driven rotor front view according to embodiment of the present invention；
Figure 16 is permanent magnet eddy current coupling driven rotor axonometric drawing according to embodiment of the present invention.
In figure：1st, safety guard；2nd, air filter；3rd, bearing housing；4th, output shaft；5th, supporting rack；6、
Mounting platform；7th, input shaft；8th, Electric Actuator；9th, bearing cap；10th, bearing；11st, key；
12nd, piston shoes；13rd, slideway sheet body；14th, end cap；15th, permanent-magnetic clamp；16th, lining is shielded；17th, it is main
Turn；18th, permanent magnet；19th, driven rotor；20th, key；21st, linear bearing；22nd, positioning lining
Set；23rd, bearing；24th, inside lining sleeve.
Embodiment
Describe in detail below in conjunction with the accompanying drawings according to the embodiment of the present invention.
As shown in drawings, permanent magnet eddy current coupling includes：Including：Driving mechanism, follower are mobile
Mechanism and supporting mechanism etc.；Driving mechanism, including power rotor 17, permanent magnet 18, shielding lining 16 etc.,
18 wedge shape of permanent magnet is embedded in power rotor 17 so that permanent magnet 18 is rotated with power rotor 17
During coordinate with power rotor 17 more firm, effectively reduce that there are the vibration that gap produces because of installation
And noise；The shielding lining 16 is located at the outside of power rotor 17, is moved with power rotor 17, main
Turn 17 uses non-magnet material, and shielding lining 16 uses permeability magnetic material, optimizes the thickness of power rotor,
Increase driven rotor magnetic field intensity, and reduction electromagnetic pollution effectively to greatest extent；
The permanent magnet 18 can be according to actual needs, using monoblock permanent magnet or polylith set of permanent magnets into one group
The multiple that permanent magnet, 18 numbers of permanent magnet or group number are 4 so that radial wave power is cancelled out each other, effectively
Ground reduces the fluctuation of output torque；Preferably, the ratio between permanent magnet arc length and non-permanent magnet part arc length between
So it is the uniformity for ensureing air gap flux density so that turn round using auxiliary to the mode of magnetizing between 3: 1 to 3: 2
Square output is more steady, and ensures that magnet short-cut path does not occur as far as possible, maximally utilises magnetic field.
Follower, including driven rotor 19, permanent-magnetic clamp 15, inside lining sleeve 24, double-row bearing 23, straight line
Bearing 21 and positioning bushing 22 etc., the driven rotor 15 is designed with helicla flute so that system output torque
With high stationarity, weaken vibration and noise of the permanent magnet eddy current coupling in startup and work significantly, and
And driven rotor forms cross-ventilation in rotation process, amount of heat can be taken away, efficiently solves fever
Problem；The permanent-magnetic clamp 15 is located on end cap 14, and close to 19 end face of driven rotor, permanent-magnetic clamp 15 is designed with
Inclined-plane, reduces the influence to air flow circuit, and increase and effective contact area of air to greatest extent,
The ferromagnetic particle in air is adsorbed to greatest extent, reduces the pollution to the permanent magnet 18 on active ring.
The driven rotor 19 is designed with helical groove structure, the number of helicla flute cannot make permanent magnet number or
The multiple of group number, generally takes even number, and between permanent magnet number or 1.1 to the 1.9 of group number, spiral shell
The ratio between spin slot width and depth are between 0.4 to 0.6；The helicla flute can effectively reduce output and turn round
The fluctuation of square, within the specific limits, spiral radian are bigger, and stationarity is better, after radian exceeds certain value
Output torque reduces rapidly and fluctuates increase, and helicla flute is arrived in the registration of axial both ends of the surface between 0.05
Between 0.25.
There are air gap, the size of air gap between the driven rotor 19 and power rotor 17 to directly affect output
The size of moment of torsion, considers the concentricity in mechanical processing assembling process, shaking in Machine Movement Process
The distribution of dynamic and air-gap field, it is 1.8~3mm to be preferably chosen air gap.
Preferably, 19 spring bearing 23 of driven rotor uses double-row bearing so that firm supporting, and with
Bushing 22 is positioned using wedge shape between linear bearing 21, ensures the concentricity of driven rotor and power rotor,
And it is easily installed adjustment.
Axial moving mechanism, by the way of Electric Actuator 8 and piston shoes 12 coordinate, the electronic execution
8 both ends of device are connected using ball, that is, realize that follower is rotated with being carried out while axial movement, and have
Reduce in rotation process to the lateral force of Electric Actuator to effect；Fixed supporting mechanism, using duplex bearing
Add between centers location structure, ensure main follower firm supporting, reduce axial float；Safety guard 1, is adopted
With permeability magnetic material, one layer of magnetic masking layer is formed again, and electromagnetic pollution is hardly produced to the external world；It is described
1 both ends of safety guard are designed with air filter 2, reduce such as ferromagnetic particle, coal dust airborne suspended particle
Pollution to permanent magnet eddy current coupling, has greatly widened the environmental requirement of permanent magnet eddy current coupling, significantly
Ground reduces the cleaning time during use, saves cost.
Preferably, 8 bottom of Electric Actuator is fastened on fixed supporting mechanism by ball, electricity
The other end of dynamic actuator 8 is connected by ball to be connected with piston shoes 12, and slideway sheet body 13 is fixed on end cap,
And rotated with follower, 8 both ends of Electric Actuator are connected using ball, significantly reduce electricity
The lateral force of dynamic actuator 8, Electric Actuator 8 is flexible to drive follower to be axially moveable, and driven
Ball linear bearing 21 is designed between mechanism and support shaft, reduces moving resistance.
The input terminal of input shaft 7 and the output terminal of output shaft 4 can be processed according to actual requirement of engineering keyway or
Screw thread etc., it is versatile.
The working method of one illustrative embodiments of permanent magnet eddy current coupling is as follows, can also its other party
Formula works.
Permanent magnet 18 uses 24, and 36 are used to the mode of magnetizing, matching helicla flute using auxiliary,
" duty cycle " of the permanent magnet 18 and helicla flute is 2: 1, between power rotor 17 and driven rotor 19
Air gap be 2mm, using it is preceding to system carry out safety inspection, it is ensured that without bolt looseness, air filtration
After whether device the safe handling problem such as can be continuing with, start Electric Actuator 8, follower is moved
Move to the initial position of work (attached drawing 8, attached drawing 9, location status shown in attached drawing 10), at this time driven machine
The field of conjugate action is not present with driving mechanism in structure, starts the upstream dynamical system of driving mechanism, realizes power rotor
17 rotate, and after waiting power rotor 17 to operate steadily, control Electric Actuator 8 promotes follower axially to move
Dynamic, one of Electric Actuator uses the control mode of position closed loop, two other Electric Actuator or
Multiple Electric Actuator use power model- following control mode, ensure that multiple Electric Actuator power outputs are identical, keep away
Exempt from tilting moment occur.The engagement area of follower and driving mechanism gradually increases, with engagement area
Increase, the magnetic field moment of torsion that follower is subject to is increasing, and realize follower rotate, with from
Motivation structure continues to be axially moved, and the rotating speed of follower constantly raises, and after reaching designated position, it is driven
Mechanism stabilization of speed, realizes the soft start of system.
When the external world, load changes, the rotating speed of driven rotor 19 changes, and ensures output torque value
Match with load, change the field of conjugate action face of power rotor 17 and driven rotor 19 by Electric Actuator 8
Product, changes the output speed of driven rotor；After power rotor 17 rotates, due to the effect of helicla flute,
Air flow is formed in air gap, that is, produces the forced convertion of air, takes away the amount of heat on driven rotor,
Multiple air filters 2 are distributed with 1 both ends of safety guard, reduce what cooling gas inflow and hot gas were flowed out
Influence, and adsorb such as ferromagnetic particle, coal dust airborne suspended particle.After use, system shutdown,
Electric Actuator 8 promotes follower to initial position.
Permanent magnet eddy current coupling according to the present invention, it can be achieved that efficiently moment of torsion transmission (efficiency is up to 98%),
Steady moment of torsion transmission (fluctuation is no more than 0.5%), and itself forms cross-ventilation, efficiently solves hair
Heat problem, is applicable to that power grid quality is poor, humidity is big, dust, inflammable and explosive environment even " shake
Electricity " in the case of also meet requirement, have maintenance cost low (no vulnerable part, cleaning frequency are low),
Green energy conservation, it is flexible start, start the time is short, fever less, speed-regulating range width many advantages, such as, to section
Energy emission reduction is of great significance.
The above description is merely a specific embodiment, but protection scope of the present invention is not limited to
In this, any one skilled in the art the invention discloses technical scope in, can be easily
Expect change or replacement, should be covered by the protection scope of the present invention.Therefore, protection of the invention
Scope should be based on the protection scope of the described claims.
Claims (8)
- A kind of 1. permanent magnet eddy current coupling, it is characterised in that including：Driving mechanism, including power rotor, permanent magnet, shielding lining etc., the permanent magnet wedge shape is inlayed In power rotor so that permanent magnet coordinates more firm in power rotor rotation process with power rotor Lean on, effectively reduce the vibration produced by installation there are gap and noise；Follower, including driven rotor, permanent-magnetic clamp, inside lining sleeve, double-row bearing, linear bearing and fixed Position bushing etc., the driven rotor is designed with helicla flute so that and system output torque has high stationarity, Weaken vibration and noise of the permanent magnet eddy current coupling in startup and work significantly, and driven rotor is turning Cross-ventilation is formed during dynamic, amount of heat can be taken away, efficiently solve heating problem；The permanent magnetism Ring, is designed with inclined-plane, reduces the influence to air flow circuit, and increase and air have to greatest extent Contact area is imitated, the ferromagnetic particle in air is adsorbed to greatest extent, reduces to the permanent magnetism on active ring The pollution of body；Axial moving mechanism, by the way of Electric Actuator and piston shoes coordinate, the Electric Actuator two End is connected using ball, that is, realizes that follower is rotated with being carried out while axial movement, and effectively subtract To the lateral force of Electric Actuator in small rotation process；Safety guard, using permeability magnetic material, forms one layer of magnetic masking layer, the external world is hardly produced again Electromagnetic pollution；The safety guard both ends are designed with air filter, reduce such as ferromagnetic particle, coal dust Pollution of the airborne suspended particle to permanent magnet eddy current coupling, has greatly widened the ring of permanent magnet eddy current coupling Border requires, and considerably reduces the cleaning time during use, saves cost.
- 2. permanent magnet eddy current coupling according to claim 1, it is characterised in that the permanent magnet can According to actual needs, using monoblock permanent magnet or polylith set of permanent magnets into one group of permanent magnet, permanent magnet number Or the multiple that group number is 4 so that radial wave power is cancelled out each other, and is effectively reduced the fluctuation of output torque； Preferably, the ratio between permanent magnet arc length and non-permanent magnet part arc length be between 3: 1 to 3: 2, using it is auxiliary to Magnetize mode, so ensures the uniformity of air gap flux density so that torque output is more steady, Er Qiebao Magnet short-cut path does not occur as far as possible for card, maximally utilises magnetic field.
- 3. permanent magnet eddy current coupling according to claim 1, it is characterised in that the driven rotor Helical groove structure is designed with, the number of helicla flute cannot make permanent magnet number or organize the multiple of number, generally take Even number, and between permanent magnet number or 1.1 to the 1.9 of group number, the ratio between spiral well width and depth Between 0.4 to 0.6；The helicla flute can effectively reduce the fluctuation of output torque, in certain model In enclosing, spiral radian is bigger, and stationarity is better, and output torque reduces rapidly simultaneously after radian exceeds certain value And fluctuation increase, helicla flute axial both ends of the surface registration between 0.05 to 0.25；Driven rotor The fit system of single or multiple lift can be used with power rotor.
- 4. permanent magnet eddy current coupling according to claim 1, it is characterised in that using double-deck electromagnetism Shielded layer, the shielding lining use permeability magnetic material, optimize the thickness of power rotor, i.e., to greatest extent Increase driven rotor magnetic field intensity, and reduction electromagnetic pollution effectively；Using permeability magnetic material, shape again Into one layer of magnetic masking layer, electromagnetic pollution is hardly produced to the external world.
- 5. permanent magnet eddy current coupling according to claim 1, it is characterised in that the driven rotor There are air gap, the size of air gap between power rotor to directly affect the size of output torque, consider The concentricity in assembling process, the vibration in Machine Movement Process and air-gap field distribution are machined, It is 1.8~3mm to be preferably chosen air gap.
- 6. permanent magnet eddy current coupling according to claim 1, driven rotor spring bearing and linear axis Using wedge shape positioning bushing between holding, ensure the concentricity of driven rotor and power rotor, and be easily installed Adjustment.
- 7. permanent magnet eddy current coupling according to claim 1, the Electric Actuator bottom passes through ball It is fastened on fixed supporting mechanism, the other end of Electric Actuator is connected by ball to be connected with piston shoes Connect, slideway sheet body is fixed on end cap, and is rotated with follower, and Electric Actuator both ends are adopted Connected with ball, significantly reduce the lateral force of Electric Actuator, Electric Actuator, which is stretched, drives driven machine Structure is axially moveable, and one of Electric Actuator uses the control mode of position closed loop, two other electricity Dynamic actuator or multiple Electric Actuator use power model- following control mode, ensure multiple Electric Actuator outputs Power is identical, avoids the occurrence of tilting moment；And ball linear axis are designed between follower and support shaft Hold, reduce moving resistance.
- 8. permanent magnet eddy current coupling according to claim 1, the input terminal of input shaft and output shaft Output terminal can process keyway or screw thread etc. according to actual requirement of engineering, versatile.
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| CN201510028634.2A CN107979262A (en) | 2015-01-21 | 2015-01-21 | Permanent magnet eddy current coupling |
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