CN106787935B - A kind of inertia non-resonant biped piezoelectric straight line actuator - Google Patents
A kind of inertia non-resonant biped piezoelectric straight line actuator Download PDFInfo
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- CN106787935B CN106787935B CN201611164490.4A CN201611164490A CN106787935B CN 106787935 B CN106787935 B CN 106787935B CN 201611164490 A CN201611164490 A CN 201611164490A CN 106787935 B CN106787935 B CN 106787935B
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- stator module
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- driving foot
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- stacked piezoelectric
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- 239000000919 ceramic Substances 0.000 claims abstract description 51
- 230000007246 mechanism Effects 0.000 claims abstract description 29
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 19
- 238000009826 distribution Methods 0.000 claims abstract description 3
- 229910052573 porcelain Inorganic materials 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 11
- 230000000694 effects Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000003475 lamination Methods 0.000 description 3
- 230000036316 preload Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 238000002604 ultrasonography Methods 0.000 description 2
- 241000580063 Ipomopsis rubra Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Classifications
-
- 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
-
- 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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- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
The invention discloses a kind of inertia non-resonant biped piezoelectric straight line actuator, including pedestal, it is provided with guide rail above pedestal, is additionally provided with stator module above the pedestal；Stator module is that the left driving of stator module of axial symmetry distribution is enough and the right driving of stator module is sufficient；The left driving of the stator module, which is enough, and the right driving foot of stator module is internal is separately installed with left stacked piezoelectric ceramics and right stacked piezoelectric ceramics；The protruding parts of the driving foot of the stator module is in contact with guide rail side；The present invention also provides a kind of working methods of inertia non-resonant biped piezoelectric straight line actuator, apply voltage on the left and right stacked piezoelectric ceramics in sufficient mechanisms respectively by being driven to be arranged symmetrically two and rise fast drop slowly and rise the same frequency sawtooth voltage signal dropped slowly fastly, with reach can be stable do continuous linear movement, and it has the advantages that simple structure, stable, registration, Motion Resolution rate is high, cost is relatively low.
Description
Technical field
The invention belongs to Precision Piezoelectric actuation technology fields, in particular to a kind of inertia non-resonant biped piezoelectric straight line to make
Dynamic device and working method.
Background technique
Piezoelectric linear motor is because its structure is simple, registration, the advantages such as is easily integrated by domestic or even global
Extensive concern, and it is applied to multiple technical fields.Non-resonant piezoelectric linear motor based on stacked piezoelectric ceramics is not only gathered around
There is the advantages of conventional motors, and overcome deficiency of the conventional ultrasound motor vulnerable to such environmental effects, there is preferable application
Prospect.
Inertia-type motor is a kind of inertia impact of rapid deformation generation using piezoelectric ceramics to realize the micro- of micro-displacement
Type driving mechanism, it has many advantages such as: motion range is big, resolution ratio can reach nanoscale, structure be simple, component can be micro-
Smallization and can be realized while step motion accurate positioning etc..
One is had developed into solely in precision actuation field using the impact type driver of piezoelectric element dynamic characteristic
Special driving pattern has obtained extensive research and application.However it is just current to inertia type piezoelectric linear motor investigative technique
There are also some shortcomings, such as: the microminiaturization of motor component is not completely accomplished, and the electric machine structure of registration is complex,
The resolution ratio of movement is not high, and movement does not have continuity and thrust is restricted, and manufacturing cost is higher.Therefore one kind is designed
The piezoelectric linear motor for being able to solve these limitations is always those skilled in the art's technical problem to be solved.
Summary of the invention
The present invention aiming at the problems existing in the prior art, proposes a kind of inertia non-resonant biped piezoelectric straight line actuation
Device applies voltage respectively and rises fast drop slowly and fast rise by driving to be arranged symmetrically two on the stacked piezoelectric ceramics in sufficient mechanisms
Slowly the same frequency sawtooth voltage signal dropped, with reach can be stable do continuous linear movement, and its, fortune simple with structure
The advantages that row stabilization, registration, Motion Resolution rate are high, cost is relatively low.
The present invention realizes by the following method: a kind of inertia non-resonant biped piezoelectric straight line actuator, including bottom
Seat, pedestal top are provided with guide rail, and spy is being, is additionally provided with stator module above the pedestal；
The driving foot that the stator module is distributed for axial symmetry, the respectively left driving of stator module are enough and stator module
Right driving foot；Left and right driving foot (the left driving foot of left and right stator module) is comprising making left and right driving foot mechanism, left and right stacked piezoelectric
Ceramics, left and right anti-shear pad, left and right preloading spring, left and right pre-loading screw, left and right tightening cushion；Double-driving foot is deposited
, allow motor it is stable do continuous linear movement, gasket, which avoids, drives directly contacting for sufficient motion parts and pedestal；
By the timing control and collective effect of double-driving foot, speed, thrust and the precision of motor slide rails have obtained biggish promotion, real
Big stroke, high-precision unification are showed.
The left driving of the stator module, which is enough, and the right driving foot of stator module is internal is separately installed with left stacked piezoelectric pottery
Porcelain and right stacked piezoelectric ceramics；Left and right stacked piezoelectric ceramics as motor driving element after application of a voltage along parallel conductive
The rail direction of motion generates displacement.
The protruding parts of the driving foot of the stator module is in contact with guide rail side, passes through the driving foot of stator module
Protruding parts and guide rail by CONTACT WITH FRICTION, it is for linear motion that driving guide rail is acted on by frictional force.
Further, the left driving of the stator module be enough and stator module right driving foot pass through respectively left mounting screw,
Right mounting screw and gasket are fixed on the base.
Further, the left driving of the stator module further includes the sufficient mechanism of left driving enough, parallel with left stacked piezoelectric ceramics
It is installed on the in-house left preloading spring of left driving foot；The left stacked piezoelectric ceramics left and right sides is provided with left anti-shearing
Gasket；The left anti-shear pad in left stacked piezoelectric ceramics left side that is mounted on is contacted with left tightening cushion, is mounted on left lamination
Left anti-shear pad is contacted with the sufficient right end beam of left driving on the right side of piezoelectric ceramics.
The presence of preloading spring, which compensates for mechanism back power deficiency, causes mechanism that cannot return in time initially in recovery stage
Stage ensure that the timing correctness of actuation principle, have the function of to the promotion of motor performance very big.
Further, the left driving foot of the stator module further includes left tightening cushion, left pre-loading screw；Left stacked piezoelectric pottery
Porcelain is pressed in that left driving foot " mouth " font is in-house, and the left preloading spring is fixed by left pre-loading screw, left tightening cushion
It is in-house with the installation side by side of left stacked piezoelectric ceramics in hollow.
Further, the right driving of the stator module includes the sufficient mechanism of right driving, peace parallel with right stacked piezoelectric ceramics enough
Loaded on the in-house right preloading spring of right driving foot；The right stacked piezoelectric ceramics left and right sides is provided with right anti-shear pad
Piece；The anti-shear pad in the right side that the right stacked piezoelectric ceramics right side is installed is contacted with left tightening cushion, is mounted on right lamination pressure
The anti-shear pad in the right side on the left of electroceramics is contacted with the sufficient left end beam of left driving.
Further, the right driving foot of the stator module further includes right tightening cushion, right pre-loading screw；Right stacked piezoelectric pottery
Porcelain is pressed in that right driving foot " mouth " font is in-house, and the right preloading spring is fixed by right pre-loading screw, right tightening cushion
It is in-house with the installation side by side of right stacked piezoelectric ceramics in hollow.
Further, the left driving of the stator module is enough and one end of the right driving foot of stator module is symmetrically arranged with and cuts
Seam, to form flexible hinge；The driving foot mechanism that two panels is arranged symmetrically is " mouth " font structure, and slot is to form flexible hinge
Chain；I.e. flexible hinge is that the slot of sufficient lower left is driven to be located at driving foot square beam and formed positioned at stator module.
Further, the guide rail by screw be fixedly connected on pedestal；Guide rail is fixed on pedestal as electric mover
On, linear movement output.
The invention also discloses a kind of working method of inertia non-resonant biped piezoelectric straight line actuator, the methods
Fast drop is risen slowly to apply voltage respectively to the left stacked piezoelectric ceramics in left driving foot, the right stacked piezoelectric ceramics in right driving foot
With rise the same frequency sawtooth voltage signal dropped slowly fastly.
The beneficial effect of the present invention compared with the existing technology is:
(1) using stacked piezoelectric ceramics as core driving element, electric machine operation state is off-resonance mode, overcomes biography
Deficiency of the system ultrasound electric machine vulnerable to such environmental effects, stable, precision is higher；
(2) biped driving method is used, improving can only stretch using stacked piezoelectric ceramics as driving element stretching resistance is weak
The situation that cannot be contracted realizes two-way big stroke, high-precision actuation；
(3) piezoelectric linear motor mechanism of the invention is relatively simple, easy to process, it can be achieved that mass production, and it is transported
The advantages that row stabilization, registration, Motion Resolution rate are high, cost is relatively low；
(4) present invention is applied with voltage on stacked piezoelectric ceramics and rises fast drop slowly and rise the sawtooth voltage letter dropped slowly fastly
Number, driving method is relatively simple, avoids complicated drive form.
Detailed description of the invention
Fig. 1 is the overall structure diagram of inertia non-resonant piezoelectric linear motor of the present invention；
Fig. 2 is the stator module decomposition diagram of inertia non-resonant piezoelectric linear motor of the present invention；
Fig. 3 is the sawtooth signal schematic diagram that the present invention is applied on two stacked piezoelectric ceramics；
Fig. 4 is inertia non-resonant piezoelectric linear motor motion principle schematic diagram of the present invention；
Wherein, 1- guide rail, 2- pedestal, the left driving foot of 3- stator module, the sufficient mechanism of the left driving of 3.1-, the left preload bullet of 3.2-
Spring, the left stacked piezoelectric ceramics of 3.3-, the left anti-shear pad of 3.4-, the left tightening cushion of 3.5-, the left pre-loading screw of 3.6-, 4- stator pack
The right driving foot of part, the sufficient mechanism of the right driving of 4.1-, the right preloading spring of 4.2-, the right stacked piezoelectric ceramics of 4.3-, the right anti-shearing of 4.4-
Gasket, the right tightening cushion of 4.5-, the right pre-loading screw of 4.6-, 5- gasket, the left mounting screw of 6-, the right mounting screw of 7-, the movement side 8-
To.
Specific embodiment
The present invention provides a kind of inertia non-resonant biped piezoelectric straight line actuator and working method, to make mesh of the invention
, technical solution and effect are clearer, clear, and referring to attached drawing and give an actual example that the present invention is described in more detail.It answers
Work as understanding, specific implementation described herein is not intended to limit the present invention only to explain the present invention.
As shown in Figure 1 and 2, a kind of inertia non-resonant biped piezoelectric straight line actuator disclosed by the invention, including pedestal 2,
Guide rail 1 is provided with above pedestal 2, the guide rail 1 is fixedly connected by screw on pedestal, and the top of the pedestal 2 is also
It is provided with stator module；The stator module is the left and right driving foot of axial symmetry distribution, respectively the left driving foot of stator module
3 and stator module right driving foot 4；The protruding parts of the driving foot of the stator module is in contact with 1 side of guide rail；
The left driving foot 3 of the stator module and the right driving foot 4 of stator module pass through left mounting screw 6, right peace respectively
Cartridge screw 7 and gasket 5 are fixed on pedestal 2.
The left driving foot 3 of the stator module includes the sufficient mechanism 3.1 of left driving, is parallelly mounted to the sufficient mechanism 3.1 of left driving
Internal left preloading spring 3.2 and left stacked piezoelectric ceramics 3.3；3.3 left and right sides setting of left stacked piezoelectric ceramics
There is left anti-shear pad 3.4, left anti-shear pad 3.4 is contacted in ceramic 3.3 left ends of left stacked piezoelectric with left tightening cushion 3.5,
It is contacted in the right end of left stacked piezoelectric ceramics 3.3 with 3.1 right end beams of left driving foot.Left stacked piezoelectric ceramics 3.3 pass through left preload
Gasket 3.5, left pre-loading screw 3.6 are pressed in inside the sufficient mechanism 3.1 of left driving, and the left preloading spring 3.2 is fixed on hollow
Sufficient 3.1 inside of mechanism of left driving and the left installation side by side of stacked piezoelectric ceramics 3.3.
The right driving foot 4 of the stator module includes the sufficient mechanism 4.1 of right driving, is parallelly mounted to the sufficient mechanism 4.1 of right driving
Internal right preloading spring 4.2 and right stacked piezoelectric ceramics 4.3；4.3 left and right sides of right stacked piezoelectric ceramics is provided with
Right anti-shear pad 4.4；Right anti-shear pad 4.4 is contacted in the left end of right stacked piezoelectric ceramics 4.3 with left tightening cushion 4.5,
It is contacted in the right end of right stacked piezoelectric ceramics 4.3 with 4.1 left end beams of left driving foot.Right stacked piezoelectric ceramics 4.3 pass through right preload
Gasket 4.5, right pre-loading screw 4.6 are pressed in inside the sufficient mechanism 4.1 of right driving, and the right preloading spring 4.2 is fixed on hollow
Sufficient 4.1 inside of mechanism of right driving and the right installation side by side of stacked piezoelectric ceramics 4.3.
As shown in Fig. 3 ~ 4, Fig. 3 is that piezoelectric linear motor of the present invention commonly drives electric signal, and Fig. 4 show stator module
With guide rail motion principle schematic diagram.The driving signal shown in Fig. 3 for being applied to the piezoelectric linear motor is with the fast drop of the slow liter of frequency
With rise the sawtooth voltage signal dropped slowly fastly.To the left stacked piezoelectric ceramics 3.3 in left driving foot, the right lamination in right driving foot
Piezoelectric ceramics 4.3 applies voltage respectively and rises fast drop slowly and rise the same frequency sawtooth voltage signal dropped slowly fastly.When in the upper half period
In, the left stacked piezoelectric ceramics 3.3 in left driving foot extend under the voltage signal effect slowly risen, drive the sufficient machine of left driving
Structure 3.1 generates certain displacement being parallel to 1 direction of motion 8 of guide rail, and it is for linear motion to act on driving guide rail 1 by frictional force,
And the rapid elongation under the voltage signal effect to skyrocket of the right stacked piezoelectric ceramics 4.3 in right driving foot drives to certain length
The sufficient mechanism 4.1 of right driving extends, and due to extending fast speed, influences on guide rail smaller；And when being in the lower half period, left driving
Left stacked piezoelectric ceramics 3.3 in foot return back to rapidly former length under the voltage signal effect fallen suddenly, and the sufficient mechanism 3.1 of left driving exists
Original state is returned back to rapidly under left preloading spring 3.2 and the effect of mechanism back power, and since recoil state is very fast, guide rail is influenced
It is smaller, and the right stacked piezoelectric ceramics 4.3 of right driving foot are returned under the voltage signal effect slowly declined from certain length
Original is long, while sufficient mechanism being driven slowly to return back to original state under right preloading spring 4.2 and the effect of mechanism back power, simultaneously
Continue to move along with the upper half period direction of motion 8 by frictional force drives guide rail 1.So in cycles, the straight of big stroke is generated
Line movement.
Claims (6)
1. a kind of inertia non-resonant biped piezoelectric straight line actuator, including pedestal (2), pedestal (2) top is provided with guide rail
(1), special to be, the pedestal is additionally provided with stator module above (2)；
The stator module is the driving foot of axial symmetry distribution, respectively the left driving foot (3) of stator module and stator module
Right driving foot (4)；A left side is separately installed with inside the left driving foot (3) of the stator module and the right driving foot (4) of stator module
Stacked piezoelectric ceramics (3.3) and right stacked piezoelectric are ceramic (4.3), and left stacked piezoelectric ceramic (3.3), right stacked piezoelectric ceramics
(4.3) parallel with guide rail (1)；The protruding parts of the driving foot of the stator module is in contact with guide rail (1) side；Described
The left driving foot (3) of stator module further includes the sufficient mechanism (3.1) of left driving, is parallelly mounted to a left side with left stacked piezoelectric ceramic (3.3)
The left preloading spring (3.2) for driving sufficient mechanism (3.1) internal；The left stacked piezoelectric is provided at left and right sides of ceramic (3.3)
Left anti-shear pad (3.4)；The right driving foot (4) of the stator module includes the sufficient mechanism (4.1) of right driving, with right stacked piezoelectric
Ceramic (4.3) are parallelly mounted to the right right preloading spring (4.2) for driving sufficient mechanism (4.1) internal；The right stacked piezoelectric pottery
Right anti-shear pad (4.4) is provided at left and right sides of porcelain (4.3).
2. a kind of inertia non-resonant biped piezoelectric straight line actuator according to claim 1, which is characterized in that described
The left driving foot (3) of stator module and the right driving foot (4) of stator module pass through left mounting screw (6), right mounting screw (7) respectively
And gasket (5) is fixed on pedestal (2).
3. a kind of inertia non-resonant biped piezoelectric straight line actuator according to claim 1, which is characterized in that described
The left driving foot (3) of stator module further includes left tightening cushion (3.5), left pre-loading screw (3.6).
4. a kind of inertia non-resonant biped piezoelectric straight line actuator according to claim 1, which is characterized in that described
The right driving foot (4) of stator module further includes right tightening cushion (4.5), right pre-loading screw (4.6).
5. a kind of inertia non-resonant biped piezoelectric straight line actuator according to claim 1, which is characterized in that described
Stator module is left to drive foot (3) and the right one end for driving foot (4) of stator module to be symmetrically arranged with slot, to form flexible hinge
Chain.
6. a kind of inertia non-resonant biped piezoelectric straight line actuator according to claim 1, which is characterized in that described
Guide rail (1) is fixedly connected on pedestal by screw.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611164490.4A CN106787935B (en) | 2016-12-16 | 2016-12-16 | A kind of inertia non-resonant biped piezoelectric straight line actuator |
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| CN201611164490.4A CN106787935B (en) | 2016-12-16 | 2016-12-16 | A kind of inertia non-resonant biped piezoelectric straight line actuator |
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| CN106787935B true CN106787935B (en) | 2019-04-09 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108092549B (en) * | 2018-01-12 | 2020-01-10 | 长春工业大学 | Compact precise piezoelectric stick-slip lifting platform and driving method thereof |
| CN108199611A (en) * | 2018-02-26 | 2018-06-22 | 盐城工学院 | A kind of double-driving foot type linear piezoelectric motor and electric excitation method thereof |
| CN109495010B (en) * | 2018-12-26 | 2020-04-07 | 燕山大学 | Electromagnetic modulation non-contact linear piezoelectric motor |
| CN112104258B (en) * | 2020-09-15 | 2021-08-31 | 南京工程学院 | Clamp type inertia piezoelectric linear motor |
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