CN206626094U - A kind of intelligent motorized spindle supported with AMB device - Google Patents
A kind of intelligent motorized spindle supported with AMB device Download PDFInfo
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- CN206626094U CN206626094U CN201720195930.6U CN201720195930U CN206626094U CN 206626094 U CN206626094 U CN 206626094U CN 201720195930 U CN201720195930 U CN 201720195930U CN 206626094 U CN206626094 U CN 206626094U
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Abstract
The utility model discloses a kind of intelligent motorized spindle supported with AMB device, including controller, nonlinear power amplifier, motor stator, journal bearing, protection bearing, thrust bearing, rotating shaft, displacement transducer and axle housing；The controller uses a kind of new control algolithm adaptive sliding-mode observer algorithm, and the rotating shaft displacement signal detected according to eddy current sensor is designed switching function, selection control law, eliminates the disturbing factor in actual motion so that system is more steady；The nonlinear power amplifier is filtered out the non-linear factor of system, linearized system by non-linear digitized compensation；The differential type magnet coil is the difference structure using upper and lower two coils, is controlled using caused electric current in two coils.
Description
Technical field
A kind of intelligent motorized spindle supported with AMB device is the utility model is related to, belongs to electro spindle control technology field.
Background technology
Motorized spindle supported with AMB is in a kind of new height in space using controllable electric magneticaction by rotor or axle stable suspersion
Performance bearing.Compared with traditional bearing, motorized spindle supported with AMB have it is contactless, without abrasion, without friction, service life is long and safeguards
Magnetic bearing, can be applied in high temperature, deep-etching adverse circumstances by the advantages such as expense is low, and tolerable rotor reaches very high and turned
Speed.Just because of this, magnetic suspension bearing technology has caused the special attention of countries in the world scientific circles and industrial quarters, and progressively applies
The field such as vacuum and clean room system, mechanical manufacturing tools, Medical Devices, turbomachinery, superconducting magnetic bearing system is arrived.
Magnetic suspension system is a kind of complicated strong nonlinearity, system model uncertain system, its performance such as rigidity, damping and
The quality of stability etc. is heavily dependent on the control algolithm of used controller.Also, its core technology and pass
Key problem is exactly the design problem of the suspension controller of rotor.In the research of magnetic suspension system, single-degree-of-freedom magnetic suspension system
For typical magnetic suspension system, its is simple in construction, is easily achieved.Therefore the research to single-degree-of-freedom magnetic suspension system is research magnetic
A kind of simple and effective method of suspension technology, it is the basis for carrying out multiple freedom degree magnetic levitation control system technical research, it is right
Contactless position senses and the research of magnetic suspension advanced control algorithm etc. has great significance.
Theory analysis is carried out to mechanism caused by intelligent magnetic suspension electric chief axis system, and carried out on Technical Solving
Research, magnetic suspension bearing technology can be made to tend to be ripe in terms of commercial Application, theory is provided for the practical application of magnetic levitation technology
And technical basis.In addition, magnetic suspension bearing has the characteristics that no mechanical friction, need not lubricated, it can greatly improve work bar
Part and conservation of nature ecological environment, meet Green design and cleaning manufacture of electronic product etc. and require, it will be new as this century
The focus of type electronic product, while economic benefit is produced, it can also produce huge social benefit.
Utility model content
Technical problem to be solved in the utility model is the defects of overcoming prior art, there is provided a kind of intelligent magnetic suspension
Electric main shaft device, can be from the transient current of motion tracking differential type magnet coil, and the error of electric current of taking advantage of a situation that makes corrections so that magnetcisuspension
Floating device is more stable.
To reach above-mentioned purpose, the utility model provides a kind of intelligent motorized spindle supported with AMB device, including controller, non-
If linear power amplifier, motor stator, several journal bearings, several protection bearings, several thrust bearings, rotating shaft,
Dry displacement transducer and axle housing；
The controller is electrically connected the nonlinear power amplifier, several displacement sensors, described non-
Linear power amplifier is electrically connected the motor stator, several described journal bearings and several described thrust bearings；
The motor stator, several described journal bearings, several protection bearing, several described thrust axis
Hold, the rotating shaft, several displacement sensors are respectively positioned in the axle housing；
The motor stator, several described journal bearings, several protection bearings and several described thrust axis
Hold and be respectively set in the rotating shaft, the motor stator, several described journal bearings, several it is described protection bearings and
Several described thrust bearings are fixedly connected with the axle housing, the motor stator, several described journal bearings, several institutes
State protection bearing, several described thrust bearings are coaxially disposed with the rotating shaft；
Several displacement sensors include several be used for detect the rotating shaft radial displacement radial transducer and
Several are used for the axial sensor for detecting the rotating shaft axial displacement, and several described radial transducers are vertically fixedly connected with institute
Axle housing is stated, several described axial sensors are laterally fixedly connected with the axle housing.
Preferentially, the rotating shaft is Step Shaft, the rotating shaft include first rotating shaft, the second rotating shaft, the 3rd rotating shaft, the 4th turn
Axle, the 5th rotating shaft, the 6th rotating shaft, the 7th rotating shaft and eighth-turn axle；First rotating shaft, the second rotating shaft, the 3rd rotating shaft, the 4th rotating shaft,
5th rotating shaft, the 6th rotating shaft, the 7th rotating shaft and eighth-turn axle are mutually permanently connected along straight line first place successively, and the 4th rotating shaft is straight
First rotating shaft diameter described in second shaft diameter ＞ described in 3rd shaft diameter ＞ described in the ＞ of footpath, the 4th shaft diameter ＞ institutes
State eighth-turn shaft diameter described in the 7th shaft diameter ＞ described in the 6th shaft diameter ＞ described in the 5th shaft diameter ＞.
Preferentially, including two ring flanges, two radial transducers and an axial sensor, two ring flanges include a left side
Ring flange and right ring flange, two radial transducers include left radial transducer and right radial transducer, the left flange plate set
It is located in second rotating shaft, the right ring flange is set in the 7th rotating shaft, and the left flange plate, the right ring flange are solid
Surely the axle housing is connected；The left radial transducer, the axial sensor are fixedly installed on the left flange plate, described
Left radial transducer is located at the top of second rotating shaft, and the axial sensor is located at the lower section of second rotating shaft, described
Right radial transducer is fixedly installed on the right ring flange, and the right radial transducer is located at the top of the 7th rotating shaft.
Preferentially, including two protection bearings, two journal bearings and two thrust bearings, a protection bearing are arranged
In the first rotating shaft, another protection bearing is set on eighth-turn axle, and a journal bearing is set in described the
In three rotating shafts, another journal bearing is set in the 7th rotating shaft, and two thrust bearings are set in described
In four rotating shafts.
Preferentially, including cutter, the cutter are detachably fixed the left end for connecting the rotating shaft.
Preferentially, including delivery port, water inlet and water pipe, the delivery port connects the upper end of the water pipe, it is described enter water
Mouth connects the lower end of the water pipe, and the water pipe is located in the axle housing, and the water pipe winds the inwall of the axle housing, the water
Pipe is positioned at the outside of the motor stator.
Preferentially, institute's displacement sensors are eddy current sensor.
Preferentially, the motor stator includes differential type magnet coil, the differential type magnet coil include coil and
Lower coil, the coil and lower coil are fixedly installed in the motor stator.
The beneficial effect that the utility model is reached：
(1) magnetic suspension bearing has the characteristics that no mechanical friction, need not lubricated in the utility model, service life length, drop
The production cost of Di Liao enterprises；It can greatly improve working conditions and conservation of nature ecological environment, meet the green of electronic product
Color designs and cleaning manufacture etc. requires, it will as the focus of this century novel electromechanical product, while economic benefit is produced,
Also huge social benefit can be produced.
(2) solve the problems, such as to be disturbed in active magnetic electro spindle running and unstable, this is active magnetic
The practical application of suspension electro spindle provides theoretical foundation；This can make the digitial controller of system in the portion of one standardization
Part, for realize active magnetic electric chief axis system exempt to debug, produce in enormous quantities and using provide superior technique support；It is logical
Adaptive sliding-mode observer method is crossed, further improves the Immunity Performance and robustness of motorized spindle supported with AMB；The utility model provides
The method handled in intelligent magnetic suspension electric chief axis system non-linear object, improvement, computing speed to control decision
The raising of degree, the enhancing of control performance bring certain help to expand stable region；Utilize nonlinear curve cluster tracing compensation side
The nonlinear power amplifier of method, it further increasing the stability and dynamic property of system.
(2) bearing countershaft, journal bearing is protected to serve protective effect in the utility model, thrust bearing is played to turning
Axle axial limiting and the effect of supporting；Water pipe serves the effect of cooling to motor stator, journal bearing, rotating shaft.
Brief description of the drawings
Fig. 1 is the theory diagram of active magnetic suspension system in the prior art；
Fig. 2 is the structure chart of intelligent motorized spindle supported with AMB system in the utility model；
Fig. 3 is the structure chart of axial electromagnet in the utility model；
Fig. 4 is the structure chart of radial direction electromagnet in the utility model；
Fig. 5 is the theory diagram of nonlinear power amplifier in the utility model；
Fig. 6 is the structure chart of outside circuit module in the utility model.
Mark meaning in accompanying drawing, 1- protection bearings；2- radial transducers；3- journal bearings；4- thrust bearings；5- motors are determined
Son；6- delivery ports；7- water inlets；8- rotating shafts；9- axle housings；10- axial sensors；11- cutters；12- water pipes；First turn of 21-
Axle；The rotating shafts of 22- second；The rotating shafts of 23- the 3rd；The rotating shafts of 24- the 4th；The rotating shafts of 25- the 5th；The rotating shafts of 26- the 6th；The rotating shafts of 27- the 7th；
28- eighth-turn axles.
Embodiment
The utility model is further described below in conjunction with the accompanying drawings.Following examples are only used for clearly illustrating this
The technical scheme of utility model, and the scope of protection of the utility model can not be limited with this.
The utility model provides a kind of intelligent motorized spindle supported with AMB device, including controller (not shown), non-linear work(
Rate amplifier (not shown), motor stator 5, several journal bearings 3, several protection bearings 1, several thrust bearings 4, turn
Axle 8, several displacement transducers and axle housing 9；
The controller is electrically connected the nonlinear power amplifier, several displacement sensors, described non-
Linear power amplifier is electrically connected the stator of motor 5, several described journal bearings 3 and several described thrust bearings
4；
The motor stator 5, several described journal bearings 3, several protection bearing 1, several described thrusts
Bearing 4, the rotating shaft 8, several displacement sensors are respectively positioned in the axle housing 9；
The motor stator 5, several described journal bearings 3, several protection bearings 1 and several described thrusts
Bearing 4 is respectively set in the rotating shaft 8, the motor stator 5, several described journal bearings 3, several described guarantors
Shield bearing 1 and several described thrust bearings 4 are fixedly connected with the axle housing 9, the motor stator 5, several described radial directions
Bearing 3, several described protection bearings 1, several described thrust bearings 4 are coaxially disposed with the rotating shaft 8；
Several displacement sensors include several be used for detect the radial displacement of rotating shaft 8 radial transducer and
Several are used for the axial sensor for detecting the axial displacement of rotating shaft 8, and several described radial transducers are vertically fixedly connected
The axle housing 9, several described axial sensors are laterally fixedly connected with the axle housing 9.
Further, rotating shaft 8 described in the utility model is Step Shaft, and the rotating shaft 8 includes 21, second turns of first rotating shaft
Axle 22, the 3rd rotating shaft 23, the 4th rotating shaft 24, the 5th rotating shaft 25, the 6th rotating shaft 26, the 7th rotating shaft 27 and eighth-turn axle 28；First
Rotating shaft 21, the second rotating shaft 22, the 3rd rotating shaft 23, the 4th rotating shaft 24, the 5th rotating shaft 25, the 6th rotating shaft 26, the 7th rotating shaft 27 and
Eighth-turn axle 28 is mutually permanently connected along straight line first place successively, the diameter ＞ of the 3rd rotating shaft 23 described in the diameter ＞ of the 4th rotating shaft 24
The diameter of first rotating shaft 21 described in the diameter ＞ of second rotating shaft 22, the diameter of the 5th rotating shaft 25 described in the diameter ＞ of the 4th rotating shaft 24
The diameter of eighth-turn axle 28 described in the diameter ＞ of 7th rotating shaft 27 described in the diameter ＞ of 6th rotating shaft 26 described in ＞.
Further, the utility model includes two ring flange (not shown), two radial transducers 2 and an axial direction
Sensor 10, two ring flanges include left flange plate and right ring flange, and two radial transducers 2 include left radial transducer and the right side
Radial transducer, the left flange plate are set in second rotating shaft 22, and the right ring flange is set in the 7th rotating shaft 27,
The left flange plate, the right ring flange are fixedly connected with the axle housing 9；The left radial transducer, the axial sensor
10 are fixedly installed on the left flange plate, and the left radial transducer is located at the top of second rotating shaft 22, the axle
It is located at the lower section of second rotating shaft 22 to sensor 10, the right radial transducer is fixedly installed on the right ring flange,
The right radial transducer is located at the top of the 7th rotating shaft 27.
Further, the utility model includes two protection bearings, 1, two journal bearing 3 and two thrust bearings 4,
The one protection bearing 1 is set in the first rotating shaft 21, and another protection bearing 1 is set on eighth-turn axle 28, and one
The journal bearing 3 is set in the 3rd rotating shaft 23, and another journal bearing 3 is set in the 7th rotating shaft 27,
Two thrust bearings 4 are set in the 4th rotating shaft 24.
Further, the utility model includes cutter 11, and the cutter 11 is detachably fixed the left side for connecting the rotating shaft 8
End.
Further, the utility model includes delivery port 6, water inlet 7 and water pipe 12, and the delivery port 6 connects described
The upper end of water pipe 12, the water inlet 7 connect the lower end of the water pipe 12, and the water pipe 12 is located in the axle housing 9, the water
Pipe 12 winds the inwall of the axle housing 9, and the water pipe 12 is located at the outside of the motor stator 5.
Further, displacement transducer described in the utility model is eddy current sensor.
It is different from the diameter of journal bearing 3 being set in the 7th rotating shaft 27 to be set in the journal bearing 3 of the 3rd rotating shaft 23, root
It is suitably sized according to the size selection of the 3rd rotating shaft 23, the 7th rotating shaft 27！
Further, the motor stator 5 includes differential type magnet coil, and the differential type magnet coil includes coil
And lower coil, the coil and lower coil are fixedly installed in the motor stator 5.
The part and its function of one typical active motorized spindle supported with AMB are as shown in Figure 1.Wherein comprising vortex
Sensor, the position of reference point is deviateed for measuring rotating shaft；Controller, the displacement for being detected eddy current sensor by microprocessor
It is transformed into control signal；Nonlinear curve race following-up type power amplifier is digitized, is in basic nonlinear power amplifier
On the basis of, by different instantaneous current values and electric current dynamic memory, control signal is converted into controlling by digitlization B-H races rule
Electric current processed, execution magnet is set to produce magnetic force so that rotating shaft maintains its levitation position constant.The rotating shaft of one reality needs multiple
Magnet forms, and detection sensor should also be multiple.
By taking motorized spindle supported with AMB as an example, system has 4 radial direction frees degree and 1 axial freedom.Work(is passed through by controller
Rate amplifier goes to drive the electric current of differential electromagnetic iron coil, to adjust rotating shaft shaft balancing position.Once rotating shaft when running at high speed
Position changes, and controller will make rotating shaft axle be maintained at centre position by adjusting the electric current in corresponding electromagnet.Active magnetcisuspension
It is a typical Mechatronics control system that floating axle, which is held, and its essence is that strong non-linear (magnetic buoyancy is proportional to the flat of electric current
Side, square, inductance, magnetic hysteresis factor etc. for being inversely proportional to offset), therefore its control problem becomes complicated and rich representative
Property.Magnetic suspension bearing just turns into a very typical object in field of non-linear control.Control mode is come to magnetic suspension bearing
Say, as the status of software engineering in a computer, attracted substantial amounts of notice and expended most of research work amount.
Because magnetic suspension control system is that typical non-linear nature is unstable and uncertain parameters systems, these are for carrying
The stability and rigidity of high system are all unfavorable.
Because magnetic suspension control system is that typical non-linear nature is unstable and uncertain parameters systems, these are for carrying
The stability and rigidity of high system are all unfavorable.
Such as formula of electromagnetic force caused by differewntial electromagnet (1)
In conventional motorized spindle supported with AMB system, the non-linear effects of core material are not often considered, the magnetic conduction of iron core
Rate μ is as fixed, in the present invention, originally fixed magnetic conductivity according to digitlization B-H in the processing of basic nonlinear power amplifier
A curve on set of curves compensates.
Actually not only the magnetic permeability mu of iron core is not constant, because digitlization BH curve is a family of curves, when being hit
Property load when, operating point can be also mutated to other curves (such as Fig. 3) in family of curves, the present invention be exactly pass through fast-response electric current with
The method of track quickly determines the digitlization BH curve where operating point.The relation of suction increment Delta F and coil current is not just inconsistent
Formula (1) is closed, such as formula (2)：
μ nowsFor instantaneous permeability, μ in coil iron corexFor instantaneous permeability in lower coil iron core, Δ F and formula (1)
In Δ F difference it is larger.Here it is where the difference of the nonlinear power amplifier with early stage.
The object of differewntial electromagnet is equivalent to by nonlinear compensation by linear object, can be written as：
Wherein, F is uncertain disturbing signal.
Define liapunov function
Wherein,It is a positive constant for F estimate, then
Designing adaptive controller is
The adaptive control laws of design are：
By formula (4)-(7), can obtain
Wherein：
The non-linear key issue core material that basic nonlinear power amplifier solves is objective reality, this non-thread
Property have impact on the stable region of system to a certain extent, be difficult to resist larger disturbance in practical application, but increase non-linear song
After the tracking of line race, significantly improved to resisting compared with large disturbances.System stable region to be made expands, and the key issue to be solved is：With
The method of " amplification of digitlization non-linear power ", makes controlled device synthesize a linear system, such active magnetcisuspension with driver
Floating controller is equivalent to work under linear system, raising, the increasing of control performance of improvement, arithmetic speed to control decision
By force, it is final to bring certain help to expand stable region.
This key issue can expand into following three points：1. in system forward passage, amplified using non-linear power
To offset iron core non-linear effects, make the control object of controller is equivalent to turn into a linear system, determined so as to change control
Plan, form a new Controlling model.2. solves the compensation problem of nonlinear curve race with digitizing solution.This algorithm and skill
Art will have certain reference value to active magnetic system design from now on.3. the method for solving fast-response current tracking makes
The digitlization BH curve quickly determined where operating point the problem of.
As shown in Fig. 2 external circuit module mainly includes protection bearing, journal bearing, cod.Protection bearing plays
The effect of position limitation protection, using roller or similar structures, a point upper and lower two parts use in pairs.Journal bearing uses paired electromagnetism
Unit, differential mode of operation is formed, acted in the electromagnetic force in rotating shaft, without any direct physical contact, as shown in Figure 4.
As shown in figure 3, cod uses permanent magnet unit, it is the main provider of suspended state magnetic field force, for reducing electromagnetic unit
Support needs.
A kind of intelligent motorized spindle supported with AMB system, including controller and displacement signal change-over circuit, non-linear power are put
Big device and external circuit module；The nonlinear power amplifier includes digital curve cluster tracking module, non-linear digitized
Compensating module, output signal converter module, output circuit module, nonlinear compensation database module, compensating parameter determine mould
Block, material parameter module, input interface module and position signal module, the external circuit module include rotating shaft, motor stator
With the sensor assembly for detecting rotating shaft displacement, the motor stator includes differential type magnet coil, the differential type electromagnetism
Coil includes coil and lower coil；Output of the input signal of the controller from displacement signal change-over circuit, the control
The output end of device processed connects the input of the nonlinear power amplifier, the input connection of institute's displacement signal change-over circuit
The output end of the sensor assembly；
The input of the digital curve cluster tracking module connects the output end of the sensor assembly, the digitlization
The input of the output end connected nonlinearity digitized compensation module of set of curves tracking module,
The output end of the non-linear digitized compensating module connects the input of the output signal converter module, institute
State the upper road output end of output signal converter module, lower road output end is all connected with the input of the output circuit module, institute
The output end for stating output circuit module connects the coil, the lower coil respectively,
The feedback signal of the differential type magnet coil connect respectively the output signal converter module input and
The input of the compensating parameter determining module, the output end of the sensor assembly connect the position signal module respectively
The input of input and the digital curve cluster tracking module,
The output end of the position signal module connects the input of the input interface module, the input interface module
Output end, the output end of the material parameter module connect the input of the compensating parameter determining module, the benefit respectively
The output end for repaying parameter determination module connects the input of the nonlinear compensation database module, the nonlinear compensation data
The output end of library module connects the input of the non-linear digitized compensating module；
The position signalling that the position signal module detects to the sensor assembly carries out analog-to-digital conversion, then by position
Signal passes to the input interface module, and the input interface module sends position signalling to the compensating parameter and determines mould
Block；
The tables of data that material properties test result generates in the material parameter module, the material parameter module is described
Compensating parameter determining module provides material parameter；
The digital curve cluster tracking module tracks the transient current from the differential type magnet coil, the numeral
Change the dynamic memory, digitlization BH curve cluster and the gap changing value of rotating shaft of set of curves tracking module storage electric current, by instantaneous
The gap changing value of electric current, the dynamic memory of electric current and rotating shaft determines the permeability of the differential type magnet coil in digitlization B-
The turning point feature and zero passage point feature of dynamic working point in H set of curves, the digital curve cluster tracking module remember electric current
Variable quantity simultaneously tracks error between the B-H values in external circuit module and digitlization BH curve cluster, is then entangled according to material parameter
Just existing transient current error；
Transient current and the sensor of the non-linear digitized compensating module according to the differential type magnet coil
The displacement signal of module establishes database, according to the non-linear rule presented in digitlization BH curve cluster, passes through the differential type
Transient current, material parameter, the change of the positional increment of the rotating shaft and the magnetic of magnetic force formula and magnetic material of magnet coil
Relation between conductance, electric current, coil turn etc. carries out reversely deriving the transient current compensation rate in differewntial electromagnet coil, makes
Obtain nonlinear system and be equivalent to linear system, list corresponding data query table；The data query table is used for nonlinear compensation, pin
There is different tables to different materials, the data of table test gained by the BH curve of magnetic material.
The output signal converter module adjusts institute according to the compensation rate from the non-linear digitized compensating module
The current value of differential type magnet coil is stated, detection comes from the output signal converter module in real time every a cycle time S
Transient current, the location variation of the rotating shaft of the differential type magnet coil；
The output circuit module exports the current value after the output signal converter resume module to external electrical
Road module；
Material parameter that the compensating parameter determining module provides according to the material parameter module, from the differential type
The transient current signal of magnet coil and the position signalling from the input interface module determine compensating parameter；
Determine compensating parameter process：Corresponding BH curve race is recalled from data query table according to material type；According to electricity
Stream and coil turn calculating magnetic field intensity H；The working curve in family of curves is found according to magnetic field intensity H historical tracks；Further according to
Instantaneous current value and coil turn find a job a little on this curve, according to linearity requirements, new operating point are set, new
Operating point on check in new magnetic field intensity H, then retrodict out new electric current, electric current be output to magnet coil, that is, complete mend
Repay.
The external circuit module is used for the suspension for realizing rotating shaft；
The nonlinear compensation database module according to the differential type magnet coil electromagnetic force digitlization BH curve be in
Existing feature obtains corresponding offset data and stored, and offset data is supplied into the non-linear digitized compensation mould
Block.
Further, the material parameter module is that the material parameter that the compensating parameter determining module provides includes
The material of core material, length and diameter in differential type magnet coil；Cycle time S=2~the 3ns.
Further, the control algolithm of the controller uses adaptive sliding-mode observer algorithm, the controller model
DSPTMS320F28335, the position signal module include DSP elevation processors.
Further, the material parameter module is that the material parameter that the compensating parameter determining module provides includes material
The BH curve cluster of sample collection, coil turn, mass value, coil described in differential type magnet coil and the lower coil it
Between gap width, saturation magnetization, remanent magnetization, coercivity, magnetic flux density, magnetic conductivity；The differential type electromagnetic wire
The magnetic core material relevant parameter of circle includes the magnetic induction intensity and coercive force characteristic point at core material specification, Characteristic of remnant paleomagnetization point
The magnetic field intensity at place.
Further, the input signal of the nonlinear compensation database module is and magnetic induction density B, magnetic field intensity H
Related parameter, stating the input signal of nonlinear compensation database module includes the transient current, differential of differential type magnet coil
Coil turn, the radius of differential type magnet coil of formula magnet coil.
Motor stator 5 is fixed on axle housing 9, and journal bearing 3, thrust bearing 4, protection bearing 1 are all supported by axle housing 9,
Displacement transducer is fixed on ring flange.The winding of motor stator 5 is by inverter supply, and frequency converter is general high-frequency converter, most
High-frequency 1000Hz, journal bearing, the coil of thrust bearing are all powered and controlled by nonlinear power amplifier.
Protect the effect of bearing 1：System occurs powering off and during other failure, and rotating shaft 8 is fallen on protection bearing 1, plays
Protective effect to journal bearing 3, thrust bearing 4 play a part of the axial limiting of countershaft 8 and supporting.
The course of work：Radial transducer 2 detects the displacement of motorized spindle supported with AMB, and this displacement signal is sent into controller, control
Displacement when device processed balances this signal and the utility model compares, and obtains deviation signal, is calculated by control algolithm
Control signal is simultaneously sent to nonlinear power amplifier, electromagnetic force caused by the current controling signal regulation motor stator 5 of output,
So as to adjust the position of motorized spindle supported with AMB.
Described above is only preferred embodiment of the present utility model, it is noted that for the common skill of the art
For art personnel, on the premise of the utility model technical principle is not departed from, some improvement and deformation can also be made, these change
Enter and deform and also should be regarded as the scope of protection of the utility model.
Claims (8)
1. a kind of intelligent motorized spindle supported with AMB device, it is characterised in that including controller, nonlinear power amplifier, motor
Stator（5）, several journal bearings（3）, several protection bearings（1）, several thrust bearings（4）, rotating shaft（8）, several
Displacement transducer and axle housing（9）；
The controller is electrically connected the nonlinear power amplifier, several displacement sensors, described non-linear
Power amplifier is electrically connected the motor stator（5）, several described journal bearings（3）With thrust bearing several described
（4）；
The motor stator（5）, described several journal bearings（3）, several described protection bearings（1）, push away described in several
Power bearing（4）, the rotating shaft（8）, several displacement sensors be respectively positioned on the axle housing（9）In；
The motor stator（5）, several described journal bearings（3）, several described protection bearings（1）Pushed away with described in several
Power bearing（4）Respectively it is set in the rotating shaft（8）On, the motor stator（5）, several described journal bearings（3）, it is some
The individual protection bearing（1）With thrust bearing several described（4）It is fixedly connected with the axle housing（9）, the motor stator
（5）, several described journal bearings（3）, several described protection bearings（1）, several described thrust bearings（4）With described turn
Axle（8）It is coaxially disposed；
Several displacement sensors include several and are used to detect the rotating shaft（8）If the radial transducer of radial displacement and
Dry is used to detect the rotating shaft（8）The axial sensor of axial displacement, several described radial transducers are vertically fixedly connected
The axle housing（9）, several described axial sensors are laterally fixedly connected with the axle housing（9）.
A kind of 2. intelligent motorized spindle supported with AMB device according to claim 1, it is characterised in that the rotating shaft（8）For
Step Shaft, the rotating shaft（8）Including first rotating shaft（21）, the second rotating shaft（22）, the 3rd rotating shaft（23）, the 4th rotating shaft（24）,
Five rotating shafts（25）, the 6th rotating shaft（26）, the 7th rotating shaft（27）With eighth-turn axle（28）；First rotating shaft（21）, the second rotating shaft（22）、
3rd rotating shaft（23）, the 4th rotating shaft（24）, the 5th rotating shaft（25）, the 6th rotating shaft（26）, the 7th rotating shaft（27）With eighth-turn axle
（28）It is mutually permanently connected successively along straight line first place, the 4th rotating shaft（24）3rd rotating shaft described in diameter ＞（23）Diameter ＞ institutes
State the second rotating shaft（22）First rotating shaft described in diameter ＞（21）Diameter, the 4th rotating shaft（24）5th rotating shaft described in diameter ＞
（25）6th rotating shaft described in diameter ＞（26）7th rotating shaft described in diameter ＞（27）Eighth-turn axle described in diameter ＞（28）Diameter.
3. a kind of intelligent motorized spindle supported with AMB device according to claim 2, it is characterised in that including two flanges
Disk, two radial transducers（2）With an axial sensor（10）, two ring flanges include left flange plate and right ring flange, and two
Individual radial transducer（2）Including left radial transducer and right radial transducer, the left flange plate is set in second rotating shaft
（22）On, the right ring flange is set in the 7th rotating shaft（27）On, the left flange plate, the right ring flange are fixedly connected with institute
State axle housing（9）；The left radial transducer, the axial sensor（10）It is fixedly installed on the left flange plate, it is described
Left radial transducer is located at second rotating shaft（22）Top, the axial sensor（10）Positioned at second rotating shaft（22）
Lower section, the right radial transducer is fixedly installed on the right ring flange, and the right radial transducer is located at the described 7th
Rotating shaft（27）Top.
4. a kind of intelligent motorized spindle supported with AMB device according to claim 2, it is characterised in that including two protection axles
Hold（1）, two journal bearings（3）With two thrust bearings（4）, a protection bearing（1）It is set in the first rotating shaft
（21）On, another protection bearing（1）It is set in eighth-turn axle（28）On, a journal bearing（3）It is set in described
Three rotating shafts（23）On, another journal bearing（3）It is set in the 7th rotating shaft（27）On, two thrust bearings（4）
It is set in the 4th rotating shaft（24）On.
5. a kind of intelligent motorized spindle supported with AMB device according to claim 1, it is characterised in that including cutter（11）,
The cutter（11）It is detachably fixed the connection rotating shaft（8）Left end.
6. a kind of intelligent motorized spindle supported with AMB device according to claim 1, it is characterised in that including delivery port（6）、
Water inlet（7）And water pipe（12）, the delivery port（6）Connect the water pipe（12）Upper end, the water inlet（7）Described in connection
Water pipe（12）Lower end, the water pipe（12）Positioned at the axle housing（9）In, the water pipe（12）Wind the axle housing（9）It is interior
Wall, the water pipe（12）Positioned at the motor stator（5）Outside.
A kind of 7. intelligent motorized spindle supported with AMB device according to claim 1, it is characterised in that institute's displacement sensors
For eddy current sensor.
A kind of 8. intelligent motorized spindle supported with AMB device according to claim 1, it is characterised in that the motor stator
（5）Including differential type magnet coil, the differential type magnet coil includes coil and lower coil, the coil and lower coil
It is fixedly installed on the motor stator（5）In.
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| CN201720195930.6U CN206626094U (en) | 2017-03-02 | 2017-03-02 | A kind of intelligent motorized spindle supported with AMB device |
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Address after: 213000 Zhenxi Industrial Park, Henglin Town, Wujin District, Changzhou City, Jiangsu Province Patentee after: Jiangsu Hanqi Motor Co.,Ltd. Patentee after: CHANGZHOU INSTITUTE OF TECHNOLOGY Address before: West Industrial Park, Henglin Town, Wujin District, Changzhou City Patentee before: CHANGZHOU HAN QI SPINDLE MOTOR Co.,Ltd. Patentee before: CHANGZHOU INSTITUTE OF TECHNOLOGY |