CN108712104A - A kind of parasitic type piezoelectricity stick-slip driver - Google Patents
A kind of parasitic type piezoelectricity stick-slip driver Download PDFInfo
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- CN108712104A CN108712104A CN201810894648.6A CN201810894648A CN108712104A CN 108712104 A CN108712104 A CN 108712104A CN 201810894648 A CN201810894648 A CN 201810894648A CN 108712104 A CN108712104 A CN 108712104A
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- resetting spring
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- spring
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- 230000003071 parasitic effect Effects 0.000 title claims abstract description 16
- 230000000694 effects Effects 0.000 claims abstract description 12
- 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 7
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 238000010276 construction Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000005284 excitation Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000011982 device technology Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- VIKNJXKGJWUCNN-XGXHKTLJSA-N norethisterone Chemical compound O=C1CC[C@@H]2[C@H]3CC[C@](C)([C@](CC4)(O)C#C)[C@@H]4[C@@H]3CCC2=C1 VIKNJXKGJWUCNN-XGXHKTLJSA-N 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000024241 parasitism Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000007514 turning Methods 0.000 description 1
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
- H02N2/10—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing rotary motion, e.g. rotary motors
- H02N2/101—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing rotary motion, e.g. rotary motors using intermittent driving, e.g. step motors
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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
- H02N2/10—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing rotary motion, e.g. rotary motors
- H02N2/12—Constructional details
-
- 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
- H02N2/10—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing rotary motion, e.g. rotary motors
- H02N2/12—Constructional details
- H02N2/123—Mechanical transmission means, e.g. for gearing
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- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
The present invention relates to a kind of parasitic type piezoelectricity stick-slip driver, which is made of stator, ring-shaped rotor, fixed pedestal three parts.Wherein stator includes piezoelectric stack, octagon flexible hinge, resetting spring and driving foot.The resetting spring uses unsymmetric structure, increases the pretightning force of advancement stage driving foot and ring-shaped rotor contact point；Drive foot-shape shape it is identical, rotational symmetry, be respectively fixedly connected on resetting spring.When piezoelectric stack works, the hunt effect of octagon flexible hinge makes resetting spring alternating convex-concave deform, and to make driving, driving ring-shaped rotor replaces stepping enough, improves the delivery efficiency of driver.The present invention has the characteristics that simple in structure, precision is high, stroke is big；Hunt effect using octagon flexible hinge and asymmetrical offsetting spring structure make ring-shaped rotor replace stepping, while having achieved the effect that inhibit to retract.
Description
Technical field
The present invention relates to a kind of parasitic type piezoelectricity stick-slip drivers, belong to Precision Piezoelectric actuation techniques field.
Background technology
In recent years, due to the fast development of nanometer technique, in biomedical engineering, Precision Machining, robot, calculating
Machine, automatically control, accurate measurement, accurate device micro manufacturing, the technical fields such as Ultra-precision Turning are to the actuation techniques of milli machine
It is increasing.As the core of actuation techniques, micro/nano level micro-move device technology becomes focus of people's attention under this demand.
Traditional precision actuation mainly uses mechanically, if precision lead screw is secondary and rolling, rail plate, accurate thread mechanism etc., but by
In there are gap, rub, creep the problems such as, precision is difficult to meet the requirements, and develops many novel drives under these conditions
Flowing mode becomes in recent years wherein being to drive the driver of original paper since its is low in energy consumption with piezoelectric material the advantages that fast response time
Carry out an important branch of precise driving device.
Saw tooth excitation electric signal is mainly applied to piezoelectric element by the driving of piezoelectricity stick-slip, and excitation stator generates speed alternating
Motion deformation, the mutual conversion between " viscous " and " cunning " two kinds of motion states of control stator and mover driven using frictional force
Dynamic mover realizes mechanical movement output.However, due to piezoelectricity stick-slip driving slowly with the rapid deformation stage, between stator and mover
Frictional force plays different role, and specially slowly the deformation driving stage is to show as friction drive, and rapid deformation drives rank
Frictional resistance is shown as when section.In consideration of it, traditional piezoelectricity stick-slip driver, rollback phenomenon is apparent, and delivery efficiency is relatively low.
Invention content
In order to inhibit the rollback of piezoelectricity stick-slip driver, while the delivery efficiency of driver is improved, the invention discloses one
Kind parasitic type piezoelectricity stick-slip driver.
The technical solution adopted in the present invention is：
A kind of parasitic type piezoelectricity stick-slip driver is made of stator, ring-shaped rotor, fixed pedestal；Wherein stator passes through screw
It is fixedly mounted on fixed pedestal, the driving foot Elastic Contact of ring-shaped rotor inner ring and stator；The stator includes the first driving
Foot, (the first back-moving spring, the second driving foot, second back-moving spring, third drive foot, third resetting spring, 4 wheel driven action spot, the
Four resetting springs, octagon flexible hinge, piezoelectric stack；Piezoelectric stack in stator is embedded in eight sides by the way of tight fit
In shape flexible hinge groove, and parallel with first, third resetting spring, first, third driving foot, second, 4 wheel driven action spot shape
Shape is identical, rotational symmetry, is respectively fixedly connected on first, third resetting spring, the second, the 4th resetting spring；Resetting spring uses
Unsymmetric structure increases the pretightning force of advancement stage driving foot and ring-shaped rotor contact point, ring-shaped rotor is inhibited to retract；Piezoelectricity
When stack service, the hunt effect of octagon flexible hinge makes resetting spring alternating convex-concave deform, to make driving foot drive ring
Shape rotor replaces stepping.
The (the first back-moving spring, second back-moving spring, third resetting spring, the 4th resetting spring use unsymmetrical knot
Structure, resetting spring (1-2-1,1-4-1,1-6-1,1-8-1) rigidity are less than resetting spring (1-2-2,1-4-2,1-6-2,1-8-
2)；The resetting spring (1-2-2,1-4-2,1-6-2,1-8-2) is more than resetting spring (1-2-1,1-4-1,1- using thickness
6-1,1-8-1) straight beam structure or resetting spring (1-2-1,1-4-1,1-6-1,1-8-1) use S type girder constructions, resetting spring
(1-2-2,1-4-2,1-6-2,1-8-2) uses straight beam structure；Increase advancement stage driving foot by asymmetrical resetting spring
Ring-shaped rotor is inhibited to retract to improve the efficiency of step motion with the pretightning force of ring-shaped rotor contact point；Described first drives
Action spot, the second driving foot, third driving foot, 4 wheel driven action spot are all made of flexible unsymmetric structure, are fixedly connected on corresponding multiple
On the spring of position, more conducively ring-shaped rotor rotates.
The hunt effect of the octagon flexible hinge makes resetting spring alternating convex-concave deform；When piezoelectric stack extends,
Push octagon flexible hinge to generate micro-displacement, first, third resetting spring outwardly convex, the second, the 4th resetting spring to
Sunken inside so that first, the annular rotor clockwise of third driving foot driving rotate a minute angle；When piezoelectric stack bounces back,
The second, the 4th resetting spring is resetted by etat lacunaire, and second, 4 wheel driven action spot driving ring-shaped rotor is made to continue to rotate clockwise one
A minute angle realizes the alternating stepping of ring-shaped rotor.
The beneficial effects of the invention are as follows：Simple in structure, compact, control is convenient, is based on parasitic motion principle, realizes annular
The alternating stepping of rotor, improves the delivery efficiency of driver, while playing the effect for inhibiting to retract.
Description of the drawings
The present invention is further described with reference to the accompanying drawings and embodiments.In attached drawing：
Fig. 1 is the structural schematic diagram of parasitic type piezoelectricity stick-slip driver proposed by the present invention；
Fig. 2 is the stator structure schematic diagram of parasitic type piezoelectricity stick-slip driver proposed by the present invention；
Fig. 3 is stator structure resetting spring schematic diagram (1) proposed by the present invention.
Fig. 4 is stator structure resetting spring schematic diagram (2) proposed by the present invention.
Fig. 5 is the fundamental diagram of parasitic type piezoelectricity stick-slip driver proposed by the present invention.
Specific implementation mode
Implementation is further illustrated below in conjunction with the accompanying drawings：
As shown in Figure 1, 2, stator (1) is fixedly mounted on by screw on fixed pedestal (3), ring-shaped rotor (2) inner ring with
The flexible drive foot Elastic Contact of stator (1)；The stator (1) include first driving foot (1-1), (the first back-moving spring (1-2),
Second driving foot (1-3), second back-moving spring (1-4), third driving foot (1-5), third resetting spring (1-6), the 4th driving
Foot (1-7), the 4th resetting spring (1-8), octagon flexible hinge (1-9), piezoelectric stack (1-10)；Piezoelectricity in stator (1)
It stacks (1-10) to be embedded in by the way of tight fit in octagon flexible hinge (1-9) groove, and bullet is resetted with first, third
Spring (1-2,1-6) is parallel, first, third driving foot (1-1,1-5), second, 4 wheel driven action spot (1-3,1-7) shape it is identical, rotation
Turn symmetrical, is respectively fixedly connected on first, third resetting spring (1-2,1-6), the second, the 4th resetting spring (1-4,1-8)；
Present implementation provides a kind of driving method of parasitic type piezoelectricity stick-slip driver, it is characterized in that according to the following steps
It carries out：
Step a：The moment from t0 to t1 applies triangular wave to piezoelectric stack (1-10), and piezoelectric stack (1-10) slowly extends,
Pushing octagon flexible hinge (1-9), slowly deformation generates micro-displacement, and first, third resetting spring (1-2,1-6) convex
It rises, the second, the 4th resetting spring (1-4,1-8) is recessed inwardly.Due to the hunt effect of octagon flexible hinge (1-9) so that
The first, third driving foot (1-1,1-5) is with generation on the contact point of ring-shaped rotor (2) while along ring-shaped rotor (2) axial direction
Pretightning force and driving force around ring-shaped rotor (2) shaft；Generate two △ x, △ y displacements simultaneously.In the effect of frictional force
Under, ring-shaped rotor (2) rotates clockwise a minute angle △ α.
Step b：The moment from t1 to t2 stops applying triangular wave, and piezoelectric stack (1-10) retracts rapidly to initial position, the
One, third resetting spring (1-2,1-6) is resetted by raised position, and the second, the 4th resetting spring (1-4,1-8) is answered by etat lacunaire
Position, second, 4 wheel driven action spot (1-3,1-7) and the pretightning force of the contact point of ring-shaped rotor (2) increase, in the effect of frictional force
Under, ring-shaped rotor (2) continues to rotate clockwise a minute angle △ β to be played to reach the rotated stepwise of ring-shaped rotor
Inhibit the effect to retract.
In conclusion the present invention provides a kind of parasitic type piezoelectricity stick-slip driver, posting for octagon flexible hinge is utilized
Raw movement makes resetting spring alternating convex-concave deform, and to make driving, driving ring-shaped rotor replaces stepping enough.The present invention is based on parasitisms
Motion principle, the piezoelectricity stick-slip type of drive provided can inhibit the generation of ring-shaped rotor displacement rollback phenomenon.The present invention has
It is simple in structure, compact, the features such as convenient is controlled, in accurate medical instrument, optical precision instrument and semiconductor machining etc. are micro-nano
There is good application prospect in precision actuation and positioning field.
Claims (3)
1. a kind of parasitic type piezoelectricity stick-slip driver, it is characterised in that the parasitic type piezoelectricity stick-slip driver is by stator (1), annular
Rotor (2), fixed pedestal (3) composition；Wherein stator (1) is fixedly mounted on by screw on fixed pedestal (3), ring-shaped rotor
(2) the driving foot Elastic Contact of inner ring and stator (1)；The stator (1) includes the first driving foot (1-1), (the first back-moving spring
(1-2), the second driving foot (1-3), second back-moving spring (1-4), third driving foot (1-5), third resetting spring (1-6), the
4 wheel driven action spot (1-7), the 4th resetting spring (1-8), octagon flexible hinge (1-9), piezoelectric stack (1-10)；In stator (1)
Piezoelectric stack (1-10) be embedded in by the way of tight fit in octagon flexible hinge (1-9) groove, and with first, third
Resetting spring (1-2,1-6) is parallel, and first, third driving foot (1-1,1-5), second, 4 wheel driven action spot (1-3,1-7) shape phase
Same, rotational symmetry, is respectively fixedly connected in first, third resetting spring (1-2,1-6), the second, the 4th resetting spring (1-4,1-8)
On；Resetting spring uses unsymmetric structure, increases the pretightning force of advancement stage driving foot and ring-shaped rotor contact point, inhibits ring
Shape rotor (2) retracts；When piezoelectric stack (1-10) works, the hunt effect of octagon flexible hinge (1-9) makes resetting spring hand over
For deformation of unevenness, to make driving driving ring-shaped rotor (2) alternately stepping enough.
2. a kind of parasitic type piezoelectricity stick-slip driver according to claim 1, it is characterised in that described first resets bullet
Spring (1-2), second back-moving spring (1-4), third resetting spring (1-6), the 4th resetting spring (1-8) use unsymmetric structure,
Resetting spring (1-2-1,1-4-1,1-6-1,1-8-1) rigidity is less than resetting spring (1-2-2,1-4-2,1-6-2,1-8-2)；Institute
The resetting spring (1-2-2,1-4-2,1-6-2,1-8-2) stated using thickness be more than resetting spring (1-2-1,1-4-1,1-6-1,
Straight beam structure or resetting spring (1-2-1,1-4-1,1-6-1,1-8-1) 1-8-1) uses S type girder constructions, resetting spring (1-
2-2,1-4-2,1-6-2,1-8-2) use straight beam structure；Increase advancement stage by asymmetrical resetting spring and drives foot and ring
The pretightning force of shape rotor contact point inhibits ring-shaped rotor (2) to retract to improve the efficiency of step motion；Described first drives
Action spot (1-1), the second driving foot (1-3), third driving foot (1-5), 4 wheel driven action spot (1-7) are all made of flexible unsymmetrical knot
Structure is fixedly connected on corresponding resetting spring, and more conducively ring-shaped rotor (2) rotates.
3. a kind of parasitic type piezoelectricity stick-slip driver according to claim 1, operating characteristic is the octagon
The hunt effect of flexible hinge (1-9) makes resetting spring alternating convex-concave deform；When piezoelectric stack (1-10) extends, octagon is pushed
Flexible hinge (1-9) generates micro-displacement, and the first, third resetting spring (1-2,1-6) outwardly convex, the second, the 4th resets bullet
Spring (1-4,1-8) is recessed inwardly so that first, third driving foot (1-1,1-5) driving ring-shaped rotor (2) rotate clockwise one
Minute angle；When piezoelectric stack (1-10) bounces back, the second, the 4th resetting spring (1-4,1-8) is resetted by etat lacunaire, makes the
Two, 4 wheel driven action spot (1-3,1-7) driving ring-shaped rotor (2) continues to rotate clockwise a minute angle, realizes ring-shaped rotor
(2) alternating stepping.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810894648.6A CN108712104B (en) | 2018-08-08 | 2018-08-08 | Parasitic piezoelectric stick-slip driver |
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| CN201810894648.6A CN108712104B (en) | 2018-08-08 | 2018-08-08 | Parasitic piezoelectric stick-slip driver |
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| CN108712104B CN108712104B (en) | 2024-03-01 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109586612A (en) * | 2019-01-23 | 2019-04-05 | 吉林大学 | A kind of alternating step piezoelectric stick-slip driver with bionical awn of wheat friction surface |
| CN109768733A (en) * | 2019-01-30 | 2019-05-17 | 吉林大学 | A kind of rotation piezoelectric rotary driver twice |
| CN113965102A (en) * | 2021-11-03 | 2022-01-21 | 长春工业大学 | Piezoelectric stick-slip driving type sleeve unfolding and folding mechanism |
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| CN102931873A (en) * | 2012-11-02 | 2013-02-13 | 南京航空航天大学 | Small-size integrated parallel rotation ultrasonic motor |
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| CN104852627A (en) * | 2015-05-18 | 2015-08-19 | 西安交通大学 | Inchworm-type piezoelectric torque actuator capable of realizing single-step large torsion angle and actuating method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109586612A (en) * | 2019-01-23 | 2019-04-05 | 吉林大学 | A kind of alternating step piezoelectric stick-slip driver with bionical awn of wheat friction surface |
| CN109586612B (en) * | 2019-01-23 | 2023-09-08 | 吉林大学 | Alternate stepping piezoelectric stick-slip driver with bionic wheat-awn friction surface |
| CN109768733A (en) * | 2019-01-30 | 2019-05-17 | 吉林大学 | A kind of rotation piezoelectric rotary driver twice |
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| CN113965102A (en) * | 2021-11-03 | 2022-01-21 | 长春工业大学 | Piezoelectric stick-slip driving type sleeve unfolding and folding mechanism |
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| CN108712104B (en) | 2024-03-01 |
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