CN103401396B - Interior radiation ring type permanent magnet clutch - Google Patents
Interior radiation ring type permanent magnet clutch Download PDFInfo
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- CN103401396B CN103401396B CN201310235523.XA CN201310235523A CN103401396B CN 103401396 B CN103401396 B CN 103401396B CN 201310235523 A CN201310235523 A CN 201310235523A CN 103401396 B CN103401396 B CN 103401396B
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Abstract
Radiation ring type permanent magnetism shaft joint in a kind of, it is made up of conductor outer rotor I, permanent magnetism internal rotor II, field of conjugate action guiding mechanism III, conductor outer rotor I is connected motor shaft by motor shaft expansion set, motor shaft spline introduces motor power, permanent magnetism internal rotor II is connected bearing axle, bearing axle spline output moment of torsion by bearing axle expansion set, under static state, manual adjustments field of conjugate action guiding mechanism III, changes the area of contact size of conductor outer rotor I and permanent magnetism internal rotor II.Signal code-disc is installed on the signal detection axle of load-side, is used for detection load speed change in real time.It is characterized in: the outer copper ring in its single annulus inductor of conductor outer rotor I high speed rotating produces eddy current on copper ring outside so that radially fixed air gap cuts the magnetic line of force of interior radiant type entirety magnet ring in permanent magnetism internal rotor II, and eddy current produces induced field and realizes power without being connected transmission with permanent magnetic field interaction simultaneously.
Description
Technical field
The present invention relates to the device of a kind of motor coupler, it is adaptable to frequent motor starting, load variable load are frequently, overload is severe and load output needs coupling of motor and load under the operating mode adjusted.
Background technology
Shaft coupling is parts commonly used in mechanical system power transmitting procedure, is widely used in the industries such as petrochemical industry, power industry, mining and boats and ships, Aero-Space, steel and iron industry, papermaking.Along with the development of science and technology, shaft coupling application constantly expands, and technology is also at development, and New Products & New Technology emerges in an endless stream.
Can the type of shaft coupling be more, generally according to the ability having uncompensated relative displacement, namely keeping the function coupled when there is relative displacement, being divided into positive coupling and flexible coupling.
The advantage that positive coupling has simple in construction, transmission efficiency is high.But also have can not overload protection, can not bumper and absorbing shock, cannot compensate two axle relative displacements and provide soft start function shortcoming.
The flexible coupling that flexible coupling includes inelastic component and the flexible coupling having elastic component, the former bumper and absorbing shock ability, the transmission efficiency of the latter is then relatively low.Flexible coupling belongs to contact shaft coupling, centering alignment error little and it is difficult to ensure that, often due to centering installation question causes vibration and shortens life-span of sealing member and bearing, make device temperature raise, transmission efficiency reduces.Although part flexible shaft coupling allows to run when the bigger error of centralization, but can produce periodically additional load on motor and bearing axle, it does not have tackle the problem at its root.Additionally heavy loading machinery equipment must have the ability to work of " soft start and overload protection ", to avoid equipment causing very big infringement and personal injury easily occurring, reduces the impact to electrical network simultaneously." soft start " can not only be greatly reduced the suffered startup of drive system itself and impact, extend the service life of key components and parts, the attack time of motor starting current can also be greatly shortened simultaneously, reduce the thermal shock load of motor and the impact on electrical network, thus saves energy extend the working life of motor." overload protection " can not only be protected motor and effectively extend the load equipment life-span, is that main equipment must have.Major part flexible coupling is without soft start and overload protection function.Although indivedual flexible couplings are provided that soft start and overload protection function but require that centering alignment error is little, even there is production accident in the effect otherwise directly affecting power transmission.Realize the fluid-flywheel clutch that load speed governing is only had at present contact additionally by shaft coupling, but it requires that centering alignment error is little, otherwise affects transmission efficiency.
Existing flexible coupling is not provided simultaneously with: centering alignment error is big, soft start, speed governing and four functions of overload protection.
In practice, running situation is complicated and changeable, in any case the centering of strict guarantee two axle, and equipment all can produce vibration after running a period of time, thus accelerated wear test, shortening equipment life.So for the reliability improving slewing, eliminating the rigid attachment of shaft coupling between motor shaft and bearing axle so that isolating technique between motor and load, be independent of each other；Allow the bigger error of centralization, when equipment is subject to large impact and load output needs to adjust, be provided that protection equipment when soft start, variable speed energy saving function and overload.It it is the inexorable trend of following shaft coupling development.
Summary of the invention
In order to solve positive coupling can not overload protection, can not bumper and absorbing shock, cannot compensate two axle relative displacements and provide soft start function shortcoming.Be not provided simultaneously with existing flexible coupling: centering alignment error is big, soft start, speed governing and four functions of overload protection deficiency; the present invention provides radiation ring type static state speed governing protection type permanent magnetism shaft joint in one, realize that centering alignment error is big simultaneously, soft start, speed governing and four functions of overload protection.Can by power non contact transmission to load, requirement according in good time load output, by field of conjugate action guiding mechanism, under static state, magnetic force area of contact size between manual adjustments electric machine conductors outer rotor and load permanent magnetism internal rotor, change transmission torque, realized the change of load output speed by the adjustment of load torque, reach to control the requirement of load output.Change the torque of input simultaneously, finally change output power of motor size, it is achieved motor is significantly energy-conservation and improves motor working efficiency.By intelligent protection system, there is when load is transshipped the effect automatically protecting motor, load equipment and interior radiation ring type static state speed governing protection type permanent magnetism shaft joint, the infringement brought to eliminate interior radiation ring type static state speed governing protection type permanent magnetism shaft joint slippage to heat up.
Interior radiation ring type permanent magnet clutch, it has the conductor outer rotor I being connected on motor shaft and the permanent magnetism internal rotor II connecting bearing axle, and radially has fixing the air gap between conductor outer rotor I and permanent magnetism internal rotor II and realize contactless moment of torsion transmission between motor shaft and bearing axle by magnetic couple effect.
Described conductor outer rotor I is made up of the outward turning change being connected on motor shaft and conductor loops, and conductor loops is fixed on inside outward turning change.
Being fixed with outer shroud fin outside outside rotating ring, rotating ring side is fixed with side fin outside.
Rotating ring is connected on motor shaft by motor shaft adapter sleeve outside, and motor shaft adapter sleeve is outer simultaneously is connected motor shaft, motor shaft spline as motor power output with motor shaft adapter sleeve equipped with motor shaft expansion set.
Described permanent magnetism internal rotor II is made up of the inward turning rotating disk being connected on bearing axle and radiant type entirety magnet ring, radiant type entirety magnet ring be fixed on inward turning rotating disk outer shroud.
To be connected as a single entity with inward turning rotating disk and bearing axle by bearing axle adapter sleeve, and with bearing axle expansion set, bearing axle adapter sleeve and bearing axle bearing axle spline will be connected as a single entity as load power input.
Permanent magnetism internal rotor II is additionally provided with the field of conjugate action guiding mechanism III pulling the load permanent magnetism axially opposing movement of internal rotor II, and described guiding mechanism III is connected into an entirety by load adapter sleeve, slide key, internal thread adapter sleeve, fixing seat and end ring by screw thread, screw and slide key.
In bearing axle side equipped with intelligent protection system IV; and described intelligent protection system IV is formed by being arranged on the signal detection axle of load-side, signal code-disc, speed probe and signal processor, and adopt power line to connect speed probe and signal processor to be connected as a single entity and exported control signal by signal processor to motor power one.
Permanent magnetism internal rotor II adopts radially oriented ring type entirety magnet ring structure, and as the assembly of load torque input, by changing radiant type entirety magnet ring diameter with how many gauges and the number of poles that magnetizes realize interior radiation ring type permanent magnet clutch torque.
This interior radiation ring type static state speed governing protection type permanent magnetism shaft joint, the advantage having had positive coupling and flexible coupling concurrently, is the soft start equipment of a mechanical connection.By then passing through magnetic field transmission moment of torsion, it is connected with the entity that the air gap replaces between motor and load.Thus by completely separated for two axles, allow the bigger error of centralization, it is achieved that and soft starter for motor, eliminate nuisance vibration, abrasion and fracture, transmission efficiency is high, extends electrical machinery life and avoids the harm that overload causes.Under static state, manually field of conjugate action guiding mechanism timely adjustment loading speed, reach to change the requirement of load output size, it is achieved motor is significantly energy-conservation.
This device is a kind of innovative energy-saving product utilizing permanent-magnet eddy current actuation techniques to research and develop; adopt overall magnet ring effective dimensions in radial air gap fixed-size outside list circular ring type induction installation and radially oriented ring type to optimize structure and high efficiency and heat radiation system and static speed adjusting gear, be aided with intelligent protection system.Utilize outer sensing copper ring and radiant type entirety internal magnetic ring to relatively rotate magnetic conductor and produce magnetic induction force with the magnetic line of force of radially fixed air gap cutting permanent-magnetic clamp, it is achieved contactless moment of torsion transmission between motor and load.Requirement according in good time load output, under static state, magnetic force area of contact size between manual adjustments electric machine conductors outer rotor and load permanent magnetism internal rotor, thus changing transmission torque, realized the change of load output speed by the adjustment of load torque, reach to control the requirement of load output.Realize motor significantly energy-conservation and improve motor working efficiency.Utilize high efficiency and heat radiation, it is ensured that system magnetic working is stable.Cutting off motor power when load is transshipped by intelligent protection system, it is prevented that during interior radiation ring type static state speed governing protection type permanent magnetism shaft joint high speed slippage, bulk temperature raises, and even melts copper ring, motor damage.Realize the automatic protection of Overload torque.
Radiation ring type static state speed governing protection type permanent magnet clutch is non-contact type coupling in the present invention, vibration isolation, allows the bigger error of centralization, installs simple, can realize soft start, variable speed energy saving and overload protection.Long service life, reliable, non-maintaining, transmission efficiency is high, and energy-conservation 30 ~ 60%.Greatly reduce systematic running cost and extend the service life of equipment.Use it also can reduce capacity motor, eliminate " low load with strong power " phenomenon and meet " energy-saving and emission-reduction " policy of country.
Accompanying drawing explanation
Fig. 1 is principle of the invention schematic diagram.
I. conductor outer rotor；II. permanent magnetism internal rotor；III. field of conjugate action guiding mechanism；IV intelligent protection system；
Conductor outer rotor I: by motor shaft band moving-conductor outer rotor I high speed rotating, outer copper ring senses generation eddy current on copper ring outside so that radially fixed air gap cuts the magnetic line of force of radiant type entirety magnet ring, and eddy current produces induced field simultaneously.Utilize efficient radiating apparatus, reduce system temperature, it is ensured that magnetic working is stable.
Permanent magnetism internal rotor II: the interaction of the outer induced field that the permanent magnetic field of the interior radiant type entirety magnet ring in permanent magnetism internal rotor II is subject to outside conductor outer rotor in sensing copper ring makes interior rotating ring rotate.And by bearing axle, the output moment of torsion of motor is inputed to load.
Field of conjugate action guiding mechanism III: under static state, manual adjustments conductor outer rotor I and permanent magnetism internal rotor II relative position in the axial direction, to change the magnetic force area of contact size between conductor outer rotor I and permanent magnetism internal rotor II, control to transmit between conductor outer rotor I and permanent magnetism internal rotor II the size of torque, reach regulating load speed and the requirement of output size, it is achieved motor is energy-efficient.
Intelligent protection system IV: cut off motor power when load stall is transshipped in load, make motor stalling.Realize the full-automatic protection to motor, load equipment and interior radiation ring type static state speed governing protection type permanent magnet clutch.
2. Fig. 2 is present configuration structural representation.
Motor shaft expansion set, motor shaft adapter sleeve, outward turning change, copper ring, radiant type entirety magnet ring, bearing axle expansion set, bearing axle adapter sleeve, interior rotating ring, side fin, outer shroud fin, rivet, viscose glue, slide key, internal thread adapter sleeve, fixing seat, end ring, signal detection axle, signal code-disc, speed probe and signal processor.
Fig. 3 is interior radiation ring type static state speed governing protection type permanent magnet clutch conductor outer rotor magnetizer structure figure: is connected as motor power output precision with motor shaft, and is system radiating simultaneously.For active rotation body.
Fig. 4 is interior radiation ring type static state speed governing protection type permanent magnet clutch permanent magnetism internal rotor permanent-magnetic body structure chart: be connected with bearing axle as load torque input module, for passive rotary body.Field of conjugate action guiding mechanism is one parts.
Fig. 5 is interior radiation ring type static state speed governing protection type permanent magnet clutch field of conjugate action guiding mechanism figure: outward turning change and bearing axle with permanent magnetism internal rotor are connected parts as load torque input; for passive rotary body; under static state, the area of contact size between conductor outer rotor and permanent magnetism internal rotor is regulated.
Fig. 6 is interior radiation ring type static state speed governing protection type permanent magnet clutch intelligent protection system figure.Whole system is load overload protecting mechanism.Wherein it is arranged on the signal code-disc on load-side signal detection axle and speed probe one is all system and provides load speed variable signal.
Fig. 7 is interior radiation ring type static state speed governing protection type permanent magnet clutch conductor outer rotor inductor component drawings: make system produce the device of induced field.
Fig. 8 is interior radiation ring type static state speed governing protection type permanent magnet clutch permanent magnet assembly figure: provide the device of permanent magnetic field for system.
Fig. 9 is interior radiation ring type static state speed governing protection type permanent magnet clutch assembling figure.
Accompanying drawing labelling in figure: I--conductor outer rotor II--permanent magnetism internal rotor
III--field of conjugate action guiding mechanism IV intelligent protection system；
1---motor shaft expansion set 2---motor shaft adapter sleeve 3---outward turning change,
4---copper ring 5---radiant type entirety magnet ring 6---bearing axle expansion set
Rotating ring 9---side fin in 7---bearing axle adapter sleeve 8---
10--outer shroud fin 11--rivet 12--viscose glue
13--slide key 14--internal thread adapter sleeve 15--fixes seat
16--end ring 17--signal detection axle 18--signal code-disc
19--speed probe 20--signal processor 21--motor shaft
22--motor shaft spline 23--bearing axle 24--bearing axle spline.
Detailed description of the invention
As shown in the figure; the technical solution adopted for the present invention to solve the technical problems is: adopts overall magnet ring effective dimensions in radial air gap fixed-size outside list circular ring type induction installation and radially oriented ring type to optimize structure and high efficiency and heat radiation system and static speed adjusting gear, is aided with intelligent protection system.Contactless moment of torsion transmission between motor and load is realized by magnetic couple effect.Utilize high efficiency and heat radiation, it is ensured that system magnetic working is stable.Under static state, realized load speed governing and electrical machine energy-saving by field of conjugate action guiding mechanism.The full-automatic protection to motor, load equipment and interior radiation ring type static state speed governing protection type permanent magnetism shaft joint is realized when load is transshipped by intelligent protection system.
Conductor outer rotor I: by motor shaft expansion set 1, motor shaft adapter sleeve 2, outward turning change 3, copper ring 4, side fin 9, outer shroud fin 10 and rivet 11, the cylindrical shape being connected by screw is overall, and wherein copper ring 4 and outward turning change 3 connect and limit copper ring 4 and the axially opposing movement of outward turning change 3 for mechanical engagement rivet 11.Copper ring 4 and outward turning change 3 form outer inductor.It is connected as motor power output use with motor shaft adapter sleeve 2 by 1 motor shaft 21 of motor shaft expansion set, motor shaft spline 22.Being cut the magnetic line of force of radiant type entirety magnet ring 5 with moving-conductor outer rotor I high speed rotating copper ring 4 with radially fixed air gap by motor shaft 21 during work and produce eddy current on copper ring 4, simultaneously eddy current produces induced field and interacts with permanent magnetic field and drive inward turning rotating disk 8 to rotate.Load is passed to by contactless for Motor torque.The induced field that eddy current produces is the basis of motor power transmission.Utilize efficient radiating apparatus simultaneously, reduce the temperature of copper ring 4 and radiant type entirety magnet ring 5, it is ensured that system magnetic working is stable.
Interior radiation ring type static state speed governing protection type permanent magnet clutch inductor adopts the single circle ring in outside, different according to transmission power, changes outer copper ring diameter and gauge.Design the interior radiation ring type static state speed governing protection type permanent magnet clutch of different size.
Permanent magnetism internal rotor II: be made up of radiant type entirety magnet ring 5, bearing axle expansion set 6, outer silk adapter sleeve 7, inward turning rotating disk 8, slide key 13, internal thread adapter sleeve 14, fixing seat 15 and end ring 16, form load power input block.Permanent magnetism internal rotor II adopts viscose glue 12 to be connected and radiant type entirety magnet ring 5 and inward turning rotating disk 8 is connected as a single entity.Adopt screw to connect inward turning rotating disk 8 and outer silk adapter sleeve 7 to be connected as a single entity.Adopt screw thread and slide key 13 connect outer silk adapter sleeve 7 is overlapped 14 and fixing seat 15 be connected as a single entity.Adopting screw to connect internal thread adapter sleeve 14 and end ring 16 to be connected as a single entity. during work, the interaction of the induced field that the permanent magnetic field of the radiant type entirety magnet ring 5 in permanent magnetism internal rotor II is subject to outside conductor outer rotor I in sensing copper ring makes interior rotating ring 8 rotate.And by bearing axle 23, the output moment of torsion of motor is inputed to load.Contactless moment of torsion transmission between motor and load is realized by magnetic couple effect.Permanent magnetic field is transmission motor output power the basis inputing to load.
Interior radiation ring type static state speed governing protection type permanent magnet clutch permanent-magnetic clamp adopts the radially oriented ring type entirety magnet ring structure in inner side--single circle ring.Different according to transmission power, in changing, how much radiant type entirety magnet ring 5 diameter and gauge and the number of poles that magnetizes design the interior radiation ring type static state speed governing protection type permanent magnet clutch of different size.Realize the moment of torsion transmission of the interior radiation ring type static state speed governing protection type permanent magnet clutch of different size.
Field of conjugate action guiding mechanism III: be connected into an entirety by outer silk adapter sleeve 7, slide key 13, internal thread adapter sleeve 14, fixing seat 15 and end ring 16 by screw thread, screw and slide key.Under static state, manual rotation internal thread adapter sleeve 14, owing to being subject to the restriction of slide key 13, outer silk adapter sleeve 7 can only move axially, thus pulling the axially opposing movement of permanent magnetism internal rotor II.To change the magnetic force area of contact size between the copper ring 4 of conductor outer rotor I and the radiant type entirety magnet ring 5 of permanent magnetism internal rotor II, it is achieved change the size transmitting torque between conductor outer rotor I and permanent magnetism internal rotor II.Area of contact is big, and the moment of torsion of transmission is big, and load speed is high；Area of contact is little, and the moment of torsion of transmission is little, and load speed is little；The moment of torsion that motor exports the moment of torsion of interior radiation ring type static state speed governing protection type permanent magnet clutch and interior radiation ring type static state speed governing protection type permanent magnet clutch exports load is equal.So, we can according to the requirement of output in load actual moving process.Regulating magnetic force area of contact size, change transfer of torque size, load torque is little, and motor output torque is little, and corresponding output is also little.Realize motor significantly energy-conservation and improve motor working efficiency.
Intelligent protection system IV: formed by being arranged on the signal detection axle 17 of load-side, signal code-disc 18, speed probe 19 and signal processor 20, adopts power line to connect and speed probe 19 and signal processor 20 is connected as a single entity and by signal processor 20 to motor power one output control signal.According to different use environment, adopt different signal generation apparatus.Its operation principle is detection load speed, when load speed is reduced to 0-4r/min, gives one control signal of motor power by signal processor 20, cuts off motor power immediately, make motor stalling.In stoping, radiation ring type static state speed governing protection type permanent magnet clutch is when high speed slippage, and system temperature raises, and even melts copper ring, motor damage.Realize when load is transshipped, the full-automatic of motor, load equipment and interior radiation ring type static state speed governing protection type permanent magnet clutch being protected by intelligent protection system IV.
1, in FIG, it is shown that principles of the invention:
It is made up of conductor outer rotor I, permanent magnetism internal rotor II, field of conjugate action guiding mechanism III, IV 4 parts of intelligent protection system.It is characterized in: conductor outer rotor I is connected motor shaft adapter sleeve 2 by motor shaft expansion set 1, motor shaft 21, motor shaft spline 22 introduce motor power.Permanent magnetism internal rotor II connects bearing axle 23 by the bearing axle expansion set 6 of field of conjugate action guiding mechanism III, bearing axle spline 24 exports moment of torsion；Magnetic force area of contact size between the main manual adjustments conductor outer rotor I and permanent magnetism internal rotor II of field of conjugate action guiding mechanism III, reed time controll load torque and rotating speed size, meet the requirement of load output, it is achieved motor is significantly energy-conservation.The signal code-disc 18 of intelligent protection system IV is installed on the signal detection axle 17 of load-side, by speed probe 19, is used for detection load speed change in real time.
During work, the magnetic line of force being cut the interior radiant type entirety magnet ring in permanent magnetism internal rotor II with its outer sensing copper ring of moving-conductor outer rotor I and motor in synchrony high speed rotating with radially fixed air gap by motor shaft produces eddy current, eddy current produces induced field and permanent magnetic field interaction simultaneously, the interior rotating ring driving permanent magnetism internal rotor II rotates, bearing axle expansion set 6 connect the parts of permanent magnetism internal rotor II---and the output moment of torsion of motor is inputed to load by the fixing seat 15 of field of conjugate action guiding mechanism III and bearing axle 23 and bearing axle spline 24.By magnetic couple effect, it is achieved contactless moment of torsion transmission between motor and load.Requirement according to load output, under static state, by field of conjugate action guiding mechanism III manual rotation internal thread adapter sleeve 14, owing to being subject to the restriction of slide key 13, bearing axle adapter sleeve 7 can only move axially, thus pulling the axially opposing movement of permanent magnetism internal rotor II.To change the magnetic force area of contact size between the copper ring 4 of conductor outer rotor I and the radiant type entirety magnet ring 5 of permanent magnetism internal rotor II, reed time controll load torque and rotating speed size；Meet the requirement of load output, it is achieved motor is significantly energy-conservation.Utilize efficient radiating apparatus, reduce the temperature of copper ring 4 and radiant type entirety magnet ring 5, it is ensured that system magnetic working is stable.
Immediately cut off motor power by the speed probe 19 in intelligent protection system IV and signal processor 20 computing to one control signal of motor power when load stall is transshipped in load, make motor stalling.In stoping, radiation ring type static state speed governing protection type permanent magnet clutch is when high speed slippage, and system temperature raises, and even melts copper ring, motor damage.Realize the full-automatic protection to motor load equipment and interior radiation ring type static state speed governing protection type permanent magnet clutch.
2. in fig. 2, it is shown that the structure of the present invention:
Conductor outer rotor I is connected with rivet 11 by screw and motor shaft expansion set 1, motor shaft adapter sleeve 2, outward turning change 3, copper ring 4, lateral surface fin 9 and outer shroud fin 10 is linked to be cylindrical shape entirety, and wherein copper ring 4 and outward turning change 3 connect and limit copper ring 4 and the axially opposing movement of outward turning change 3 for mechanical engagement rivet 11.Copper ring 4 be positioned at radiant type entirety magnet ring 5 excircle and with radiant type entirety magnet ring 5 concentric layout, it is ensured that copper ring 4 internal diameter and radiant type entirety magnet ring 5 external diameter radial air gap uniformly, fixing.Radial air gap is uniform, fixing, can obtain best power source transmission.Conductor outer rotor I forms motor power output block.Utilize efficient radiating apparatus, reduce system temperature, it is ensured that magnetic working is stable.
Permanent magnetism internal rotor II is made up of radiant type entirety magnet ring 5, bearing axle expansion set 6, outer silk adapter sleeve 7, inward turning rotating disk 8, slide key 13, internal thread adapter sleeve 14, fixing seat 15 and end ring 16, forms load power input block.Permanent magnetism internal rotor II adopts viscose glue 12 to be connected and radiant type entirety magnet ring 5 and inward turning rotating disk 8 is connected as a single entity.Adopt screw to connect inward turning rotating disk 8 and outer silk adapter sleeve 7 to be connected as a single entity.Adopt screw thread and slide key 13 to connect outer silk adapter sleeve 7 and internal thread adapter sleeve 14 and fixing seat 15 to be connected as a single entity.Adopt screw to connect internal thread adapter sleeve 14 and end ring 16 to be connected as a single entity.Radiant type entirety magnet ring 5 be positioned at outer sensing copper ring and with copper ring 4 concentric layout, it is ensured that radiant type entirety magnet ring 5 external diameter and copper ring 4 internal diameter radial air gap uniformly, fixing, to obtain best power source transmission.
Field of conjugate action guiding mechanism III is parts of permanent magnetism internal rotor II.It is connected into an entirety by outer silk adapter sleeve 7, slide key 13, internal thread adapter sleeve 14, fixing seat 15 and end ring 16 by screw thread, screw and slide key.Under static state, manual rotation internal thread adapter sleeve 14, owing to being subject to the restriction of slide key 13, outer silk adapter sleeve 7 can only move axially, thus pulling the axially opposing movement of load permanent magnetism internal rotor II.To change the magnetic force area of contact size between conductor outer rotor I and permanent magnetism internal rotor II, it is achieved change the size transmitting torque between conductor outer rotor I and permanent magnetism internal rotor II.Meet the requirement of load speed governing and output, it is achieved motor is significantly energy-conservation.
Intelligent protection system IV is made up of signal detection axle 17, signal code-disc 18, speed probe 19 and signal processor 20, adopts power line to connect and speed probe 19 and signal processor 20 is connected as a single entity and by signal processor 20 to motor power one output signal.The full-automatic protection to motor, load equipment and interior radiation ring type static state speed governing protection type permanent magnet clutch is realized by intelligent protection system IV when load stall is transshipped in load.
3. in figure 3, it is shown that conductor outer rotor magnetizer structure installation diagram of the present invention:
It is overall that conductor outer rotor I is linked to be single cylindrical shape by motor shaft expansion set 1, motor shaft adapter sleeve 2, outward turning change 3, copper ring 4, side fin 9, outer shroud fin 10 and rivet 11, and wherein copper ring 4 and outward turning change 3 connect and limit copper ring 4 and the axially opposing movement of outward turning change 3 for mechanical engagement rivet 11.Effect: be magnetic field force by electromechanics power-conversion and export to load rotary body, utilizes high efficiency and heat radiation simultaneously, reduces system temperature, it is ensured that system magnetic working is stably.
Wherein in Fig. 3, motor shaft 21, for connecting motor shaft use, is connected as a single entity with conductor outer rotor I and uses as motor power output by motor shaft expansion set 1 and motor shaft adapter sleeve 2.
4. in fig. 4 it is shown that be permanent magnetism internal rotor permanent-magnetic body structure installation diagram of the present invention:
Permanent magnetism internal rotor II is made up of radiant type entirety magnet ring 5, bearing axle expansion set 6, outer silk adapter sleeve 7, inward turning rotating disk 8, slide key 13, internal thread adapter sleeve 14, fixing seat 15 and end ring 16, forms load power input block.Permanent magnetism internal rotor II adopts viscose glue 12 to be connected and radiant type entirety magnet ring 5 and inward turning rotating disk 8 is connected as a single entity.Adopt screw to connect inward turning rotating disk 8 and outer silk adapter sleeve 7 to be connected as a single entity.Adopt screw thread and slide key 13 to connect outer silk adapter sleeve 7 and internal thread adapter sleeve 14 and fixing seat 15 to be connected as a single entity.Adopt screw to connect internal thread adapter sleeve 14 and end ring 16 to be connected as a single entity.Effect: magnetic field force is converted into moment of torsion and inputs to bearing axle.
Wherein in Fig. 4, bearing axle expansion set 6 is used for even bearing axle, the parts of permanent magnetism internal rotor II are connected by bearing axle expansion set 6---the fixing seat 15 of field of conjugate action guiding mechanism III, bearing axle 23 and bearing axle spline 24, and be connected as a single entity as load torque input use with permanent magnetism internal rotor II.
5. in Figure 5, it is shown that field of conjugate action guiding mechanism figure of the present invention:
Field of conjugate action guiding mechanism III is parts of permanent magnetism internal rotor II.An entirety is connected into by screw thread, screw and slide key by outer silk adapter sleeve 7, slide key 13, internal thread adapter sleeve 14, fixing seat 15 and end ring 16.Under static state, manual rotation internal thread adapter sleeve 14, owing to being subject to the restriction of slide key 13, outer silk adapter sleeve 7 can only move axially, thus pulling the load permanent magnetism axially opposing movement of internal rotor II.To change the magnetic force area of contact size between conductor outer rotor I and permanent magnetism internal rotor II, it is achieved change the size transmitting torque between conductor outer rotor I and permanent magnetism internal rotor II.Reed time controll load torque and rotating speed size, meet the requirement of load output, it is achieved motor is significantly energy-conservation.
6. in figure 6, it is shown that intelligent protection system layout of the present invention:
Adopt power line to connect speed probe 19 and signal processor 20 to be connected as a single entity and by signal processor 20 to motor power one output control signal.If load overload load stall and permanent magnetism internal rotor II permanent magnet stall; due to slippage principle; conductor outer rotor I still keeps motor speed constant cutting permanent magnetism internal rotor II permanent magnet; now the speed probe 19 in intelligent protection system III can gather a process signal on signal code-disc 18 and pass to signal processor 20; process through signal processor single-chip microcomputer; then give one control signal of motor power, cut off the electricity supply and make motor stalling.In stoping, radiation ring type static state speed governing protection type permanent magnet clutch is when high speed slippage, and inductor and motor heat up too high and have a negative impact.Realize the full-automatic protection to motor, load equipment and interior radiation ring type static state speed governing protection type permanent magnet clutch.
Wherein the signal code-disc 18 in Fig. 6 is installed on the signal detection axle 17 of load-side, utilizes speed probe, in real time the change of detection load speed.
7. in the figure 7, it is shown that electric machine conductors rotor inductor assembly installation diagram of the present invention:
Copper ring 4 in inductor assembly is mechanical engagement with outward turning change 3, connects and limit copper ring 4 and the axially opposing movement of outward turning change 3 with rivet 11.Outer sensing height speed rotation copper ring 4 can sense generation eddy current when cutting the magnetic line of force in radiant type entirety magnet ring 5 with radially fixed air gap on copper ring 4, and eddy current produces induced field.The induced field that eddy current produces and permanent magnetic field interact and drive interior rotating ring 8 to rotate.Inductor radial air gap is uniform, fixing, is the basis realizing controllable torque output.For CD.Copper ring 4 is the inductor of proprietary material, drastically increases transmission efficiency.Side fin 9 and outer shroud fin 10 are connected with outward turning change by welding or screw, provide cooling air for system.
8. in fig. 8 it is shown that be permanent magnet assembly installation diagram of the present invention:
Permanent magnet is made up of interior rotating ring 8 and radiant type entirety magnet ring 5.Interior rotating ring 8 and radiant type entirety magnet ring 5 are machinery interference fits and splicing, adopt viscose glue 12 to be connected and radiant type entirety magnet ring 5 and inward turning rotating disk 8 are connected as a single entity.The physical dimension of radiant type entirety magnet ring 5 controls and the number of poles that magnetizes is how many, is the basis realizing controllable torque output.
9. in fig .9, it is shown that assembling figure of the present invention:
Standard screws is adopted to be fitted together by diagram installation site and der group by each part.
10. whole interior radiation ring type static state speed governing protection type permanent magnet clutch work process:
Interior radiation ring type static state speed governing protection type permanent magnet clutch is non-contact type coupling, is connected with the entity that the air gap replaces between motor and load, thus by completely separated for two axles, allows the bigger error of centralization.During electric motor starting, conductor outer rotor I and motor in synchrony high speed rotating, owing to conductor outer rotor I and permanent magnetism internal rotor II are contactless shaft coupling, permanent magnetism internal rotor II can not rotate immediately.nullIn electric machine rotation process，The interior radiant type entirety magnet ring of the outer copper ring in conductor outer rotor I magnetic conductor list annulus inductor and permanent magnetism internal rotor II permanent magnet produces relative rotation，Alternating magnetic field senses generation eddy current on copper ring outside by air gap，Simultaneously eddy current produces the permanent magnetic field of induced field and interior radiant type entirety magnet ring and interacts，Due to load torque effect，Passive permanent magnetism internal rotor II is still in static，After active conductor outer rotor I turns over an angle，Certain slip angle is there is between induced field and the permanent magnetic field of driven load permanent magnetism internal rotor II in its outer sensing copper ring，Repel each other according to the magnetic pole same sex、The principle that there is a natural attraction between the sexes，So that static poised state is broken，Actively the size of the angle that conductor outer rotor I turns over depends on the size of load torque，Now driven load permanent magnetism internal rotor II can be subject to the effect of electromagnetic torque，Electromagnetic torque increases along with the increase at active motor conductor outer rotor I and the slip angle of driven load permanent magnetism internal rotor II；When electromagnetic torque exceedes load torque, driven load permanent magnetism internal rotor II starts to rotate.Whole process starting current peak value is substantially reduced and the startup time is very short, it is achieved that electric machine soft starting, reduces starting power consumption and avoiding causing bigger rush of current of motor.It is particularly suited under frequent motor starting and load variable load operating mode frequently motor and the coupling of load.
Hereafter, under the driving of motor, active motor conductor outer rotor I will keep certain slip angle synchronous operation with driven load permanent magnetism internal rotor II.Thus rotating along the direction identical with electric machine conductors outer rotor I with dynamic load permanent magnetism internal rotor II.Result produces torque on load-side output shaft, thus band dynamic load rotates.Realize the non contact transmission of power.Realize the moment of torsion transmission between motor and load.The interior radiation ring type static state speed governing permanent magnet clutch self-regulating rotary declinate when load variable load, it is ensured that moment of torsion transmission is smoothly.
Utilize efficient radiating apparatus simultaneously, reduce the temperature of copper ring 4 and radiant type entirety magnet ring 5, it is ensured that system magnetic working is stable.
Requirement according in good time load output, under static state, conductor outer rotor I and permanent magnetism internal rotor II relative position in the axial direction is regulated by field of conjugate action guiding mechanism III, manual rotation internal thread adapter sleeve, owing to being subject to the restriction of slide key, outer silk adapter sleeve can only move axially, thus pulling the permanent magnetism axially opposing movement of internal rotor II.To change the magnetic force area of contact size between conductor outer rotor I and permanent magnetism internal rotor II, it is achieved change the size transmitting torque between electric machine conductors outer rotor I and load permanent magnetism internal rotor II.Interior radiation ring type static state speed governing protection type permanent magnet clutch is to realize speed controlling by adjustment moment of torsion, and area of contact is big, and the moment of torsion of transmission is big, and load speed is high；Area of contact is little, and the moment of torsion of transmission is little, and load speed is little；The moment of torsion that motor exports the moment of torsion of interior radiation ring type static state speed governing protection type permanent magnet clutch and interior radiation ring type static state speed governing protection type permanent magnet clutch exports load is equal.So, we according to the size of output in load actual moving process, can regulate magnetic force area of contact size, changes transfer of torque size, and load torque is little, and motor output torque is little, and corresponding output is also little.Realize motor significantly energy-conservation and improve motor working efficiency.
The maximum load torque that interior radiation ring type static state speed governing protection type permanent magnet clutch can bear is determined by the peak torque of static torque characteristic, when load torque values exceedes this peak value size, it will produce step-out phenomenon.Due to slippage principle, motor occurs without stall.Achieve the overload protection to motor.Namely permanent-magnetic outer rotor II stalling load stall, but the copper ring 4 in conductor outer rotor I still can keep the magnetic line of force of the constant radiant type entirety magnet ring 5 cutting permanent-magnetic outer rotor II with radially fixed air gap of motor speed, motor overload work simultaneously.Now the speed probe 19 in intelligent protection system IV can gather a process signal on signal code-disc 18 and pass to signal processor 20, processes through signal processor single-chip microcomputer, then gives one control signal of motor power, cuts off the electricity supply and make motor stalling.In stoping, radiation ring type static state speed governing protection type permanent magnet clutch is when high speed slippage, and system heats up too high and has a negative impact.After load overload eliminates, reset motor and realize the moment of torsion transmission of next process.Control to provide guarantee for remote motor.
Interior radiation ring type static state speed governing protection type permanent magnet clutch package unit achieves smoothly completing of Contactless power transmission, variable speed energy saving and intelligence overload protection action.
Conductor loops adopts the copper of magnetic conduction conduction or aluminum to make.
Claims (5)
1. radiation ring type permanent magnet clutch in, it is characterized in that there is the conductor outer rotor (I) being connected on motor shaft (21) and connect the permanent magnetism internal rotor (II) of bearing axle (23), and radially have fixing the air gap between conductor outer rotor (I) and permanent magnetism internal rotor (II) and realize contactless moment of torsion transmission between motor shaft (21) and bearing axle (23) by magnetic couple effect;Described conductor outer rotor (I) is to be made up of the outward turning change (3) being connected on motor shaft (21) and conductor loops (4), and conductor loops (4) is fixed on outward turning change (3) inner side;Described permanent magnetism internal rotor (II) is made up of the inward turning rotating disk (8) being connected on bearing axle (23) and radiant type entirety magnet ring (5), radiant type entirety magnet ring (5) be fixed on inward turning rotating disk (8) outer shroud；Rotating ring (3) outside is fixed with outer shroud fin (10) outside, and rotating ring (3) side is fixed with side fin (9) outside；Permanent magnetism internal rotor (II) is additionally provided with the field of conjugate action guiding mechanism (III) pulling load permanent magnetism internal rotor (II) axially opposing movement, and described guiding mechanism (III) is connected into an entirety by load adapter sleeve (7), slide key (13), internal thread adapter sleeve (14), fixing seat (15) and end ring (16) by screw thread, screw and slide key.
2. interior radiation ring type permanent magnet clutch according to claim 1, it is characterized in that rotating ring (3) is connected on motor shaft (21) by motor shaft adapter sleeve (2) outside, motor shaft adapter sleeve (2) is connected motor shaft (21), motor shaft spline (22) as motor power output with motor shaft adapter sleeve (2) equipped with motor shaft expansion set (1) outward simultaneously.
3. interior radiation ring type permanent magnet clutch according to claim 1, it is characterized in that to be connected as a single entity with inward turning rotating disk (8) and bearing axle (23) by bearing axle adapter sleeve (7), and with bearing axle expansion set (6), bearing axle adapter sleeve (7) and bearing axle (23), bearing axle spline (16) are connected as a single entity as load power input.
4. interior radiation ring type permanent magnet clutch according to claim 1; it is characterized in that in bearing axle (23) side equipped with intelligent protection system (IV); and described intelligent protection system (IV) is formed by being arranged on the signal detection axle (17) of load-side, signal code-disc (18), speed probe (19) and signal processor (20), and adopt power line to connect speed probe (19) and signal processor (20) to be connected as a single entity and by signal processor (20) to motor power one output control signal.
5. the interior radiation ring type permanent magnet clutch as described in claim 1-4 any one, it is characterized in that: permanent magnetism internal rotor (II) adopts radially oriented ring type entirety magnet ring structure, and as the assembly of load torque input, by changing radiant type entirety magnet ring (5) diameter with how many gauges and the number of poles that magnetizes realize interior radiation ring type permanent magnet clutch torque.
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| CN201310235523.XA CN103401396B (en) | 2013-06-14 | 2013-06-14 | Interior radiation ring type permanent magnet clutch |
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| CN107605987B (en) * | 2017-10-23 | 2023-05-23 | 宝鸡泰华磁机电技术研究所有限公司 | Permanent magnet double clutch driving device for railway diesel locomotive |
| DE102019204962A1 (en) * | 2019-04-08 | 2020-10-08 | Audi Ag | Method for manufacturing a component |
| CN112886767A (en) * | 2021-03-19 | 2021-06-01 | 江苏磁谷科技股份有限公司 | Speed reducing motor with magnetic coupling protection device |
| CN116952437B (en) * | 2023-09-19 | 2023-12-15 | 航天泰心科技有限公司 | Motor torque measuring device |
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| CN201918878U (en) * | 2010-10-25 | 2011-08-03 | 西安交通大学 | Radial-direction permanent-magnet coupling driver |
| CN202749996U (en) * | 2012-07-27 | 2013-02-20 | 王兴君 | Intelligent protection type cylinder type magnetic coupling |
| CN203434837U (en) * | 2013-06-14 | 2014-02-12 | 宝鸡泰华磁机电技术研究所有限公司 | Internal-radiation ring type permanent magnetic coupling |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE202006005189U1 (en) * | 2006-03-31 | 2007-08-16 | H. Wernert & Co. Ohg | Centrifugal pump with coaxial magnetic coupling |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201918878U (en) * | 2010-10-25 | 2011-08-03 | 西安交通大学 | Radial-direction permanent-magnet coupling driver |
| CN202749996U (en) * | 2012-07-27 | 2013-02-20 | 王兴君 | Intelligent protection type cylinder type magnetic coupling |
| CN203434837U (en) * | 2013-06-14 | 2014-02-12 | 宝鸡泰华磁机电技术研究所有限公司 | Internal-radiation ring type permanent magnetic coupling |
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