CN105915109B - Cable-stayed type rhombus enlarger piezoelectricity stick-slip linear electric motors and its motivational techniques - Google Patents
Cable-stayed type rhombus enlarger piezoelectricity stick-slip linear electric motors and its motivational techniques Download PDFInfo
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- CN105915109B CN105915109B CN201610386938.0A CN201610386938A CN105915109B CN 105915109 B CN105915109 B CN 105915109B CN 201610386938 A CN201610386938 A CN 201610386938A CN 105915109 B CN105915109 B CN 105915109B
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/02—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing linear motion, e.g. actuators; Linear positioners ; Linear motors
- H02N2/04—Constructional details
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/02—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing linear motion, e.g. actuators; Linear positioners ; Linear motors
- H02N2/06—Drive circuits; Control arrangements or methods
Abstract
A kind of cable-stayed type rhombus enlarger piezoelectricity stick-slip linear electric motors and its motivational techniques, to solve current piezoelectricity stick-slip linear electric motors the output mechanical performance caused by frictional force comprehensive regulation difficulty is limited the problems such as.The present invention is made up of precompressed power apparatus, cable-stayed type stator and mover；The cable-stayed type rhombus movement conversion mechanism of the stator has micro-displacement enlarging function, because its axial rigidity skewness both generates lateral displacement, increases friction drive again, and reduce frictional resistance；The regulation and control ripple coupling that will rub simultaneously is superimposed in the sawtooth driving ripple in cable-stayed type stator rapid deformation driving stage, so as to reduce frictional resistance between rapid deformation driving stage fixed and moving son, the comprehensive regulation to frictional force is realized, improves the mechanical output characteristics of piezoelectricity stick-slip linear electric motors.The present invention can be widely applied to the micro-nano such as precision optical instrument precision actuation and field of locating technology because having the advantages that compact-sized, easy to assembly, positioning precision is high and stroke is unrestricted.
Description
Technical field
The present invention relates to a kind of cable-stayed type rhombus enlarger piezoelectricity stick-slip linear electric motors and its motivational techniques, belong to micro-nano
Precision actuation and field of locating technology.
Background technology
Piezoelectricity stick-slip linear electric motors are a kind of inverse piezoelectric effects based on piezoelectric element, are swashed under the excitation of Asymmetric Electric signal
Send out stator（Or oscillator）Dither a little is produced, is coupled using the friction between stator and mover and realizes the micro- of mechanical energy output
Receive accurate piezoelectricity stick-slip linear electric motors.According to the difference of driving principle, piezoelectricity stick-slip linear electric motors are broadly divided into resonance type piezoelectricity
Motor（Also referred to as supersonic motor）With off-resonance type piezoelectric motor（Also referred to as piezoelectricity stick-slip motor）Two major classes.With resonance type piezoelectric electro
Machine is compared, and piezoelectricity stick-slip linear electric motors have the characteristics that simple and compact for structure, easy assembling, easy to control, positioning precision is high, quilt
It is widely used in the micro-nano such as semiconductor machining, precision optical instrument precision actuation and field of locating technology.
Saw tooth excitation electric signal is mainly put on piezoelectric element by the driving of piezoelectricity stick-slip, excites stator to produce speed alternating
Motion deformation, control stator and mover mutually to be changed between " viscous " and " cunning " two kinds of motion states, utilize frictional force drives
Mover realizes that mechanical movement exports.However, because the driving of piezoelectricity stick-slip slowly drives the stage with rapid deformation, between stator and mover
Frictional force plays not same-action, and friction drive is shown as when being specially and slowly deforming the driving stage, and rapid deformation drives rank
Frictional resistance is shown as during section.The technology of being disclosed shows that current piezoelectricity stick-slip linear electric motors can not be realized and whole stick-slip is driven
The frictional force of process carries out comprehensive regulation, causes it to export mechanical performance and is limited.The stage especially is driven in the rapid deformation of stator,
Because mover friction moves in the opposite direction, when mover inertia force is not enough to overcome the frictional resistance, it will lead
Actuating produces the motion that retracts, and shows as the jagged unstable movement output of class, deteriorates output performance, existing saw tooth excitation electricity
Signal can not be realized to be regulated and controled to the frictional force in piezoelectricity stick-slip linear electric motors rapid deformation driving stage, further limits piezoelectricity
The application of stick-slip linear electric motors and development.
The content of the invention
To solve existing piezoelectricity stick-slip linear electric motors due to difficult, the caused machine of comprehensive regulation that rubbed between stator and mover
Tool output characteristics is limited, and produces the technical problem such as the unstable movement output of class zigzag, deterioration output performance, and the present invention discloses one
Kind cable-stayed type rhombus enlarger piezoelectricity stick-slip linear electric motors and its motivational techniques.
The technical solution adopted in the present invention is：
The cable-stayed type rhombus enlarger piezoelectricity stick-slip linear electric motors are by precompressed power apparatus, cable-stayed type stator and mover group
Into.
The precompressed power apparatus is made up of lower slide unit, upper slide unit and manual adjusting screw rod；The lower slide unit is provided with mover
Mounting hole and mover installation base surface, for installing fixed mover；The lower slide unit bottom is provided with counter sink, is used for and peripheral equipment
Put and be fixedly connected；The lower slide unit is internally provided with the fixed guide rail in inner side, is done directly for aiding in upper slide unit to fix guide rail along inner side
Line moves, and inner side fixes guide rail and is provided with lower guideway mounting screw, for avoiding upper slide unit from skidding off the fixed guide rail in inner side.Under described
Slide unit is provided with ball retainer component, for realizing the motion transmission of upper slide unit；The lower slide unit is provided with lower spring and fixed
Screw and pre-compressed spring, for realizing the drawback movement of upper slide unit；The lower slide unit be provided with fixing screws, fixed retainer and
Tie down screw, for being locked to upper slide unit；The lower slide unit is provided with manual adjusting screw rod mounting hole, for cable-stayed type
The pretightning force regulation of stator.The upper slide unit is provided with hinge mounting hole, and the installation for cable-stayed type stator is fixed；The upper cunning
Platform is provided with upper rail mounting screw, for limiting the range of movement of upper slide unit；The upper slide unit is provided with spring and fixes spiral shell
Nail, for fixing the other end of pre-compressed spring, and can realize the single-degree-of-freedom linear reciprocating motion of upper slide unit.The upper slide unit
Side is provided with fixing screwed hole, for being threadedly coupled with tie down screw, realizes the fixation of upper slide unit；The upper slide unit is set
Outside moving guide rail is equipped with, for driving upper slide unit to move.The manual adjusting screw rod is carried out with manual adjusting screw rod mounting hole
Threaded connection, realize that prepressing device is adjusted to the pretightning force of cable-stayed type stator.
The cable-stayed type stator is by cable-stayed type rhombus movement conversion mechanism, adjust pad, piezo-electric stack and pre-loading screw group
Into.The cable-stayed type rhombus movement conversion mechanism is provided with hinge fixing hole, it is fastenedly connected with upper slide unit；The cable-stayed type
Rhombus movement conversion mechanism is provided with cable-stayed type rhombus hinge, will can be put in micro-displacement caused by sawtooth drive lower piezoelectric stacking
Greatly.The cable-stayed type rhombus hinge is provided with hinge short axle and hinge major axis, and the micro-displacement for adjusting rhombus flexible hinge is put
Big multiple.The cable-stayed type rhombus hinge is provided with flexible beam and buckstay, can be further by caused by the vibration of cable-stayed type stator
Micro-displacement amplifies；The cable-stayed type rhombus movement conversion mechanism is provided with motion foot, for driving mover to realize movement output；Institute
State cable-stayed type rhombus movement conversion mechanism and be provided with cable-stayed type converter, can be by microbit caused by piezo-electric stack axial vibration
Transfer is changed to the lateral displacement of motion foot.Lateral displacement is produced due to axial rigidity skewness, increases slowly deformation driving
The friction drive during stage, frictional resistance when reducing the rapid deformation driving stage, realizes the comprehensive regulation to frictional force.It is described oblique
Pull-type rhombus movement conversion mechanism is provided with pre-loading screw mounting hole, for piezo-electric stack pretension.The piezo-electric stack it is front and rear
Adjust pad is provided between end face and pre-loading screw, it is therefore an objective to protect piezo-electric stack, prevent its produce shear strain or it is local by
Power is uneven, by adjusting the precession amount of pre-loading screw, can be achieved to adjust the axial pre tightening force of piezo-electric stack.
The mover is biserial decussation roller guide rail, including fixed rack, motion slide rail, roller rolling retainer and end are spacing
Screw.The fixed guide rail is fixed on mover installation base surface by mover mounting hole, and the motion guide rail end face scribbles glass
Fiber-like friction material；The roller rolling retainer provides sliding support to move the slip of slide rail；The end stop screw is used
In the range of movement of limitation motion slide rail.
Complex incentive electric signal employed in the motivational techniques is by friction regulation and control ripple complex superposition in cable-stayed type stator
In the sawtooth driving ripple in rapid deformation stage, the friction regulation and control ripple is sine wave；The motivational techniques can reduce rapid deformation
Frictional resistance between stage cable-stayed type stator and mover, suppress the motion generation that retracts, wherein sawtooth driving wave period is T1, swash
It is V to encourage voltage magnitude1, symmetry D, the sinusoidal regulation and control wave period of friction is T a little2, driving voltage amplitude is V2, sawtooth driving
The cycle ratio of ripple and the sinusoidal regulation and control ripple of friction a little is T1/T2=10 ~ 100000, driving voltage Amplitude Ration is V1/V2More than 2.
The beneficial effects of the invention are as follows：
The present invention passes through coupling excitation electric signal using the cable-stayed type stator structure with frictional force comprehensive regulation function
Enter row energization, increase cable-stayed type stator slowly deforms friction drive between driving stage cable-stayed type stator and mover, reduces oblique pull
Frictional resistance between formula stator rapid deformation stage cable-stayed type stator and mover, realizes and piezoelectricity stick-slip linear electric motors was entirely driven
The frictional force of journey carries out comprehensive regulation, can be obviously improved the mechanical output characteristics of piezoelectricity stick-slip linear electric motors, reduces displacement and retracts
Rate, positioning precision is up to nanoscale under open loop condition.Compared with current prior art, have it is compact-sized with it is easy to control etc. excellent
Point, power output lifting more than 20%, output speed lifting more than 50%, delivery efficiency lifting more than 70%.
Brief description of the drawings
Fig. 1 show the structural representation of cable-stayed type rhombus enlarger piezoelectricity stick-slip linear electric motors proposed by the present invention；
Fig. 2 show the precompressed power apparatus knot of cable-stayed type rhombus enlarger piezoelectricity stick-slip linear electric motors proposed by the present invention
Structure schematic diagram；
The lower slide unit structure that Fig. 3 show cable-stayed type rhombus enlarger piezoelectricity stick-slip linear electric motors proposed by the present invention is shown
It is intended to；
The upper slide unit that Fig. 4 show cable-stayed type rhombus enlarger piezoelectricity stick-slip linear electric motors proposed by the present invention overlooks knot
Structure schematic diagram；
The upper slide unit that Fig. 5 show cable-stayed type rhombus enlarger piezoelectricity stick-slip linear electric motors proposed by the present invention looks up knot
Structure schematic diagram；
Fig. 6 show the cable-stayed type stator knot of cable-stayed type rhombus enlarger piezoelectricity stick-slip linear electric motors proposed by the present invention
Structure schematic diagram；
Fig. 7 show the cable-stayed type rhombus fortune of cable-stayed type rhombus enlarger piezoelectricity stick-slip linear electric motors proposed by the present invention
Manual converting mechanism structural representation；
Fig. 8 show the cable-stayed type rhombus fortune of cable-stayed type rhombus enlarger piezoelectricity stick-slip linear electric motors proposed by the present invention
Manual converting mechanism local overlooking structural representation；
Fig. 9 show the cable-stayed type rhombus fortune of cable-stayed type rhombus enlarger piezoelectricity stick-slip linear electric motors proposed by the present invention
Manual converting mechanism partial side structural representation；
The Structure of mover that Figure 10 show cable-stayed type rhombus enlarger piezoelectricity stick-slip linear electric motors proposed by the present invention shows
It is intended to；
Figure 11 show the coupling excitation electricity of cable-stayed type rhombus enlarger piezoelectricity stick-slip linear electric motors proposed by the present invention
Signal waveform schematic diagram.
Embodiment
Embodiment one：Illustrate present embodiment with reference to Fig. 1 ~ Figure 10.Present embodiment provides a kind of cable-stayed type water chestnut
The specific embodiment of shape enlarger piezoelectricity stick-slip linear electric motors.A kind of cable-stayed type rhombus enlarger piezoelectricity stick-slip is straight
Line motor is made up of precompressed power apparatus 1, cable-stayed type stator 2 and mover 3.
The precompressed power apparatus 1 is made up of lower slide unit 1-1, upper slide unit 1-2 and manual adjusting screw rod 1-3.The lower slide unit
1-1 is provided with mover mounting hole 1-1-1 and mover installation base surface 1-1-12, for installing fixed mover 3；The lower slide unit 1-1
Bottom is provided with counter sink 1-1-2, for being fixedly connected with peripheral unit.It is fixed that the lower slide unit 1-1 is internally provided with inner side
Guide rail 1-1-11, moved along a straight line for aiding in upper slide unit 1-2 to fix guide rail 1-1-11 along inner side, guide rail 1-1-11 is fixed in inner side
It is the integer more than or equal to 1 to be provided with 4n lower guideway mounting screw 1-1-3, wherein n, interior for avoiding upper slide unit 1-2 from skidding off
Guide rail 1-1-11 is fixed in side.The lower slide unit 1-1 is provided with ball retainer component 1-1-4, for realizing upper slide unit 1-2 fortune
It is dynamic to transmit；The lower slide unit 1-1 is provided with lower spring fixing screws 1-1-9 and pre-compressed spring 1-1-10, for realizing upper slide unit
1-2 drawback movement；The lower slide unit 1-1 is provided with fixing screws 1-1-5, fixed retainer 1-1-6 and tie down screw 1-1-
7, by adjusting tie down screw 1-1-7, it is possible to achieve upper slide unit 1-2 is locked, prevents upper slide unit 1-2 in motor work
Generation play.The lower slide unit 1-1 is provided with manual adjusting screw rod mounting hole 1-1-8, by being used with manual adjusting screw rod 1-3
Threaded connection, realize the pretightning force regulation of cable-stayed type stator 2.The upper slide unit 1-2 is provided with hinge mounting hole 1-2-1, is used for
The installation of cable-stayed type stator 2 is fixed, and the upper slide unit 1-2 is provided with 4n upper rail mounting screw 1-2-2, for limiting upper cunning
Platform 1-2 range of movement；The upper slide unit 1-2 is provided with spring set screw 1-2-3, for fixing pre-compressed spring 1-1-10
The other end, and upper slide unit 1-2 single-degree-of-freedom linear reciprocating motion can be realized；The upper slide unit 1-2 sides are provided with solid
Determine screwed hole 1-2-4, for being threadedly coupled with tie down screw 1-1-7, realize upper slide unit 1-2 fixation；The upper slide unit
1-2 is provided with outside moving guide rail 1-2-5, for driving upper slide unit 1-2 to move.The manual adjusting screw rod 1-3 with adjusting manually
Section screw rod mounting hole 1-1-8 is threadedly coupled, and by changing manual adjusting screw rod 1-3 precession amount, can adjust upper slide unit
1-2 position, realize that precompressed power apparatus 1 is adjusted to the pretightning force of cable-stayed type stator 2.
The cable-stayed type stator 2 by cable-stayed type rhombus movement conversion mechanism 2-1, adjust pad 2-2, piezo-electric stack 2-3 and
Pre-loading screw 2-4 is formed.The cable-stayed type rhombus movement conversion mechanism 2-1 is using 6061 aluminum alloy materials as rapidoprint；
The cable-stayed type rhombus movement conversion mechanism 2-1 is provided with hinge fixing hole 2-1-1, it is fastenedly connected with upper slide unit 1-2；Institute
State cable-stayed type rhombus movement conversion mechanism 2-1 and be provided with cable-stayed type rhombus hinge 2-1-2, can be by piezo-electric stack 2-3 micro-displacement
Amplification；The cable-stayed type rhombus hinge 2-1-2 is provided with hinge short axle and hinge major axis, and specifically, the length of hinge short axle is
A, the length of hinge major axis are B, and ratio K=B/A of its major and minor axis is cable-stayed type rhombus hinge 2-1-2 perpendicular to driving direction
Micro-displacement multiplication factor, its micro-displacement multiplication factor K values be 1 ~ 10, by the ratio K for adjusting major and minor axis, thus it is possible to vary micro-
Displacement equations multiple, micro-displacement multiplication factor K=8.5 in present embodiment.The cable-stayed type rhombus hinge 2-1-2 is provided with soft
Property beam 2-1-6 and buckstay 2-1-7.Specifically, flexible beam 2-1-6 wall thickness is E, and buckstay 2-1-7 wall thickness is F, its
Ratio z=F/E values are 1.1 ~ 1.5, by adjusting z values, are further passed through micro-displacement caused by piezo-electric stack 2-3 vibrations oblique
Pull-type rhombus movement conversion mechanism 2-1 amplifies, and the ratio that buckstay and flexible beam are chosen in present embodiment is 1.5.It is described oblique
Pull-type rhombus movement conversion mechanism 2-1 is provided with the sufficient 2-1-4 of motion, and its end face scribbles ceramic-like friction material, dynamic for driving
Son 3 moves.Specifically, the thickness for moving sufficient 2-1-4 is M, and sufficient 2-1-4 thickness M is moved in regulation can change the rigidity of its own, its
Thickness M is less than mover contact face thickness 3 ~ 5 mm.The cable-stayed type rhombus movement conversion mechanism 2-1 is provided with cable-stayed type motion and turned
Parallel operation 2-1-3, cable-stayed type converter 2-1-3 form an angle value θ with moving sufficient 2-1-4 shapes, wherein θ values for 20 ° ~
65 °, micro-displacement caused by piezo-electric stack 2-3 axial vibrations can be converted to the lateral displacement for moving sufficient 2-1-4.Due to cable-stayed type
The axial rigidity skewness of stator 2 and produce lateral displacement, friction drive when increasing the slowly deformation driving stage, reduce fast
Frictional resistance during the speed deformation driving stage, can be achieved the comprehensive regulation to frictional force；Angle theta=25 ° in present embodiment.It is described
Straight beam structure and oblique pull girder construction is presented in cable-stayed type converter 2-1-3, to realize that cable-stayed type converter is preferably real
The dimensional parameters of existing microbit shifting movement conversion, the rational matching straight beam structure of the present invention and oblique pull girder construction.Specifically, straight beam knot
The length of structure is L, width N, and the length of oblique beam structure is Q, width P, wherein L=1 ~ 1.25Q, N=1 ~ 1.1P.The oblique pull
Formula rhombus movement conversion mechanism 2-1 is provided with pre-loading screw mounting hole 2-1-5, for piezo-electric stack 2-3 pretensions.The piezoelectric pile
Folded 2-3 is provided with adjust pad using the product of the companies such as NEC between piezo-electric stack 2-3 front/rear end and pre-loading screw 2-4
2-2, the adjust pad 2-2 use stainless steel material, its thickness best results in 1 ~ 2 mm scopes, are adjusted in present embodiment
Whole pad 2-2 thickness is 2 mm.The purpose of the adjust pad 2-2 be protection piezo-electric stack 2-3, prevent its produce shear strain or
Local pressure is uneven, by adjusting pre-loading screw 2-4 precession amount, can be achieved to adjust piezo-electric stack 2-3 axial pre tightening force.
The mover 3 is biserial decussation roller guide rail, including fixed rack 3-1, motion slide rail 3-2, roller rolling retainer 3-3
With end stop screw 3-4.The fixed guide rail 3-1 is fixed on mover installation base surface 1-1-12 by mover mounting hole 1-1-1
On, the motion guide rail 3-2 end faces scribble glass fibre class friction material, and the roller rolling retainer 3-3 is motion slide rail 3-2
Slide and support is provided, the end stop screw 3-4 is used for the range of movement for limiting motion slide rail 3-2.
Embodiment two：Illustrate present embodiment with reference to Figure 11 figures.Present embodiment provides a kind of cable-stayed type rhombus
The specific embodiment of enlarger piezoelectricity stick-slip linear electric motors motivational techniques.A kind of cable-stayed type rhombus enlarger piezoelectricity
The motivational techniques of stick-slip linear electric motors are as follows.
Complex incentive electric signal employed in the motivational techniques is by friction regulation and control ripple complex superposition in cable-stayed type stator
In the sawtooth driving ripple in rapid deformation stage, the friction regulation and control ripple can be sine wave.Wherein, sawtooth driving wave period is T1,
Driving voltage amplitude is V1, symmetry D, the sinusoidal regulation and control wave period of friction is T a little2, driving voltage amplitude is V2, sawtooth drive
The cycle ratio of dynamic ripple and the sinusoidal regulation and control ripple of friction a little is T1/T2=10 ~ 100000, driving voltage Amplitude Ration is V1/V2More than 2.
Operation principle：Cable-stayed type rhombus enlarger piezoelectricity stick-slip linear electric motors and its motivational techniques are mainly in coupling electricity
Under signal excitation, the frictional force between comprehensive regulation cable-stayed type stator and mover, and then lift the machinery of piezoelectricity stick-slip linear electric motors
Output characteristics.Wherein, the driving stage is slowly deformed in cable-stayed type stator, mover is under stiction effect as stator one rises
Raw slowly " viscous " motion, now stiction offer driving force, electricity can be lifted by increasing frictional force between cable-stayed type stator and mover
Machine output performance；The stage is driven in cable-stayed type stator rapid deformation, caused force of sliding friction is between cable-stayed type stator and mover
Frictional resistance, particularly when mover inertia force is not enough to overcome the frictional resistance, it will cause mover to produce the motion that retracts, it is micro-
The jagged unstable motion of class is shown as in sight, output performance is deteriorated, influences positioning precision, now trying, which reduces cable-stayed type, determines
Son and mover sliding-frictional resistance, motor synthesis output characteristics can be improved.The cable-stayed type stator of the present invention is due to using cable-stayed type
Rhombus movement conversion mechanism so that cable-stayed type stator shaft orientation Stiffness Distribution is uneven, excites cable-stayed type stator driving end to produce side
To displacement, cable-stayed type stator and the normal pressure contacted between mover are adjusted, i.e., slowly deforms the driving stage in cable-stayed type stator, increased
Cable-stayed type stator and the normal pressure contacted between mover, and then increase the friction drive between cable-stayed type stator and mover, in oblique pull
Formula stator rapid deformation drives the stage, reduces cable-stayed type stator and the normal pressure contacted between mover, and then reduce cable-stayed type stator
Frictional resistance between mover, realize to slowly deformation driving stage friction drive and rapid deformation driving stage frictional resistance
Comprehensive regulation, lifted complete machine output performance.Meanwhile the present invention is fast by the way that friction regulation and control ripple coupling is superimposed on into cable-stayed type stator
In the sawtooth driving ripple of fast deformation stage, cable-stayed type stator is excited to be in dither state a little, so as to reduce rapid deformation
Frictional resistance between driving stage fixed and moving son, suppresses the motion generation that retracts, can be obviously improved the mechanical defeated of piezoelectricity stick-slip linear electric motors
Go out characteristic.
In summary the content, the present invention provide a kind of cable-stayed type rhombus enlarger piezoelectricity stick-slip linear electric motors and its
Motivational techniques, to solve output mechanical performance of the current piezoelectricity stick-slip linear electric motors caused by frictional force comprehensive regulation difficulty
The problems such as limited.The cable-stayed type rhombus enlarger piezoelectricity stick-slip linear electric motors proposed, have it is compact-sized, easy to assembly,
The features such as positioning precision height and unrestricted stroke.The motivational techniques proposed can obviously reduce the displacement of piezoelectricity stick-slip linear electric motors
Rate is rewinded, lifts its mechanical output characteristics, is led in the micro-nano such as precision optical instrument, semiconductor machining precision actuation and location technology
Domain has good application prospect.
Claims (7)
1. a kind of cable-stayed type rhombus enlarger piezoelectricity stick-slip linear electric motors, the cable-stayed type rhombus enlarger piezoelectricity stick-slip straight line
Motor is by precompressed power apparatus（1）, cable-stayed type stator（2）And mover（3）Composition；The cable-stayed type stator（2）It is fixed on pre-
Pressure apparatus（1）On, mover（3）It is fixed on precompressed power apparatus（1）On；It is characterized in that precompressed power apparatus（1）By gliding
Platform（1-1）, upper slide unit（1-2）With manual adjusting screw rod（1-3）Composition；The lower slide unit（1-1）Fixed mover mounting hole is set
（1-1-1）With mover installation base surface（1-1-12）, pass through mover mounting hole（1-1-1）By mover（3）It is fixed on mover installation base
Face（1-1-12）On；Lower slide unit（1-1）It is provided with counter sink（1-1-2）, lower slide unit（1-1）It is internally provided with the fixed guide rail in inner side
（1-1-11）, guide rail is fixed in inner side（1-1-11）Lower guideway mounting screw is installed（1-1-3）；Lower slide unit（1-1）It is provided with down
Spring set screw（1-1-9）And pre-compressed spring（1-1-10）；Lower slide unit（1-1）It is provided with fixing screws（1-1-5）, fixed protect
Hold frame（1-1-6）And tie down screw（1-1-7）, pass through tie down screw（1-1-7）With fixed retainer（1-1-6）Threaded connection
By upper slide unit（1-2）With fixed retainer（1-1-6）It is locked；Lower slide unit（1-1）It is provided with manual adjusting screw rod mounting hole
（1-1-8）；The upper slide unit（1-2）It is provided with hinge mounting hole（1-2-1）, pass through hinge mounting hole（1-2-1）By cable-stayed type
Stator（2）With upper slide unit（1-2）It is fixed；Upper slide unit（1-2）End set has upper rail mounting screw（1-2-2）Consolidate with upper spring
Determine screw（1-2-3）, upper slide unit（1-2）Side is provided with fixing screwed hole（1-2-4）, by with tie down screw（1-1-7）Adopt
With the fixed upper slide unit of threaded connection（1-2）, upper slide unit（1-2）It is provided with outside moving guide rail（1-2-5）；The regulation spiral shell manually
Bar（1-3）With manual adjusting screw rod mounting hole（1-1-8）Using threaded connection pretension cable-stayed type stator（2）.
2. a kind of cable-stayed type rhombus enlarger piezoelectricity stick-slip linear electric motors according to claim 1, it is characterised in that tiltedly
Pull-type stator（2）By cable-stayed type rhombus movement conversion mechanism（2-1）, adjust pad（2-2）, piezo-electric stack（2-3）With pretension spiral shell
Nail（2-4）Composition；The cable-stayed type rhombus movement conversion mechanism（2-1）Using oblique pull beam type rhombus flexible hinge structure；Oblique pull
Formula rhombus movement conversion mechanism（2-1）It is provided with hinge fixing hole（2-1-1）With cable-stayed type rhombus hinge（2-1-2）；Cable-stayed type
Rhombus movement conversion mechanism（2-1）It is provided with motion foot（2-1-4）With cable-stayed type converter（2-1-3）；Cable-stayed type rhombus
Movement conversion mechanism（2-1）It is provided with pre-loading screw mounting hole（2-1-5）, pass through pre-loading screw mounting hole（2-1-5）With pretension
Screw（2-4）Using threaded connection by piezo-electric stack（2-3）It is fixed；The piezo-electric stack（2-3）Front/rear end and pretension spiral shell
Nail（2-4）Between be provided with adjust pad（2-2）.
3. a kind of cable-stayed type rhombus enlarger piezoelectricity stick-slip linear electric motors according to claim 1, it is characterised in that dynamic
Son（3）For biserial decussation roller guide rail, including fixed rack（3-1）, motion slide rail（3-2）, roller rolling retainer（3-3）And end
Stop screw（3-4）；Fixed guide rail（3-1）Pass through mover mounting hole（1-1-1）It is fixed on mover installation base surface（1-1-12）On,
The fixed rack（3-1）With motion slide rail（3-2）End is provided with end stop screw（3-4）, fixed rack（3-1）Pass through
Roller rolling retainer（3-3）With moving slide rail（3-2）Mediate contact.
4. a kind of cable-stayed type rhombus enlarger piezoelectricity stick-slip linear electric motors according to claim 2, it is characterised in that tiltedly
Pull-type stator（2）Cable-stayed type rhombus hinge（2-1-2）Hinge short axle and hinge major axis are provided with, the length of hinge short axle is A,
The length of hinge major axis is B, and ratio K=B/A of its major axis and short axle is cable-stayed type rhombus hinge（2-1-2）Perpendicular to driving
The micro-displacement multiplication factor in direction, the multiplication factor K values of its micro-displacement are 1 ~ 10.
5. a kind of cable-stayed type rhombus enlarger piezoelectricity stick-slip linear electric motors according to claim 2, it is characterised in that tiltedly
Pull-type stator（2）Cable-stayed type rhombus movement conversion mechanism（2-1）It is provided with cable-stayed type converter（2-1-3）, cable-stayed type
Converter（2-1-3）With motion foot（2-1-4）Angle value θ is formed, wherein θ values are 20 ° ~ 65 °.
6. a kind of cable-stayed type rhombus enlarger piezoelectricity stick-slip linear electric motors according to claim 2, it is characterised in that tiltedly
Pull-type stator（2）Motion foot（2-1-4）End face scribbles ceramic-like or glass fibre class friction material.
7. a kind of cable-stayed type rhombus enlarger piezoelectricity stick-slip linear electric motors motivational techniques, the motivational techniques are based on claim 1
Described cable-stayed type rhombus enlarger piezoelectricity stick-slip linear electric motors are realized；The motivational techniques are characterised by that it is sawtooth to drive ripple
Ripple, friction regulation and control ripple is sine wave, and wherein sawtooth driving wave period is T1, driving voltage amplitude is V1, symmetry D, rub a little
It is T to wipe sinusoidal regulation and control wave period2, driving voltage amplitude is V2, sawtooth drives ripple and the cycle ratio of friction sine regulation and control ripple is a little
T1/T2=10 ~ 100000, driving voltage Amplitude Ration is V1/V2More than 2.
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| CN108173454B (en) * | 2018-01-29 | 2020-06-02 | 长春工业大学 | Double-stator fixed piezoelectric inertia driver and driving method thereof |
| CN108134536B (en) * | 2018-01-29 | 2020-06-02 | 长春工业大学 | Horizontal dual-drive type precise piezoelectric stick-slip linear device and driving method thereof |
| CN111953227B (en) * | 2020-08-19 | 2022-08-16 | 燕山大学 | Non-contact piezoelectric motor with high positioning precision |
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