CN106849743B - Stick-slip linear actuator based on piezoelectric fabric - Google Patents
Stick-slip linear actuator based on piezoelectric fabric Download PDFInfo
- Publication number
- CN106849743B CN106849743B CN201710212084.9A CN201710212084A CN106849743B CN 106849743 B CN106849743 B CN 106849743B CN 201710212084 A CN201710212084 A CN 201710212084A CN 106849743 B CN106849743 B CN 106849743B
- Authority
- CN
- China
- Prior art keywords
- mover
- piezoelectric fabric
- sheet type
- compliant mechanism
- driving head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000004744 fabric Substances 0.000 title claims abstract description 32
- MROJXXOCABQVEF-UHFFFAOYSA-N Actarit Chemical compound CC(=O)NC1=CC=C(CC(O)=O)C=C1 MROJXXOCABQVEF-UHFFFAOYSA-N 0.000 claims abstract description 21
- 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 10
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 125000004122 cyclic group Chemical group 0.000 claims description 2
- 239000000835 fiber Substances 0.000 claims description 2
- 238000013016 damping Methods 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 5
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000007363 ring formation reaction 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
Landscapes
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
The present invention relates to the stick-slip linear actuators based on piezoelectric fabric, belong to micro-nano precision actuation field.It is made of pedestal (1), pretightning force weighted platform (2), stator (3), mover (4)；Wherein pretightning force weighted platform (2) and mover (4) be mounted on pedestal (1) on, stator (3) be mounted on pretightning force weighted platform (2) on, and with mover (4) Elastic Contact；The stator (3) is the compliant mechanism for being stained with piezoelectric fabric (3 2), by giving piezoelectric fabric (3 2) to apply sawtooth wave electric signal, piezoelectric fabric (3 2) slowly extends, quickly shorten, based on stick-slip principle, so that stator (3) is generated friction drive, be transmitted on mover (4) by driving head (3 1 3), driving mover (4) moves.It is an advantage of the invention that：It is simple in structure, precision is high, stroke is big, can be used for the fields such as micro-nano technology, precision optics, aerospace.
Description
Technical field
The present invention relates to the stick-slip linear actuators based on piezoelectric fabric, belong to micro-nano precision actuation technical field.
Background technology
Along with the fast development in the fields such as precision and ultra-precision machining, electronics, biotechnology, accurate measurement, to micro-nano
Rice precision actuation technology requirement it is higher and higher, each research institution also actively to big stroke, high-precision piezoelectric actuator into
Row research.Big stroke and high-precision are conflicting, how preferably to solve this contradiction, realize big stroke, high-precision piezoelectricity
Driver has become a urgent problem to be solved.Piezoelectric fabric is a kind of novel piezoelectric material, has flexible big, quality
It is small, it is suitble to be attached at surface, the advantages that higher electromechanical coupling factor, survivability is strong, can be used for realizing big stroke, high-precision
The design of the piezoelectric actuator of degree.
Invention content
In order to realize that big stroke, high-precision combination, the present invention disclose a kind of stick-slip linear drives based on piezoelectric fabric
Device.
The invention is realized by the following technical scheme：Stick-slip linear actuator based on piezoelectric fabric is by pedestal, pretightning force
Weighted platform, stator, mover composition, wherein pretightning force weighted platform and mover are mounted on pedestal, and stator is mounted on pretightning force
On weighted platform.The stator includes compliant mechanism, piezoelectric fabric, screw, spring-damper；Apply sawtooth to piezoelectric fabric
Wave electric signal, in slow deformation stage, piezoelectric fabric slowly extends, and sheet type arc compliant mechanism slowly stretches, and curvature becomes smaller,
So that driving head is generated y to displacement, generates friction drive, driving mover movement；In the rapid deformation stage, piezoelectric fabric quickly contracts
Short, sheet type arc compliant mechanism snapback, curvature becomes larger, and reduces frictional resistance.
The compliant mechanism includes U-shaped buckstay, the straight flexible hinge of sheet type, driving head, the submissive machine of sheet type arc
Structure, threaded hole；U-shaped buckstay (3-1-1), the straight flexible hinge of sheet type, driving head and the sheet type arc compliant mechanism
Connection cyclization clockwise；The straight flexible hinge of the sheet type uses thickness for the sheet-like structure of a, the sheet type arc
Compliant mechanism uses thickness for b arc thin slices；Be stained with piezoelectric fabric on the downside of sheet type arc compliant mechanism, can drive driving head around
The micro- rotation of the straight flexible hinge of sheet type, driving mover movement；The threaded hole is for installing spring-damper, it can be achieved that stator
The adjusting of pretightning force between mover.
The driving head is provided with driving head and pre-tightens plane, for being contacted with spring-damper；It is provided with driving head drive
Dynamic cambered surface, for and mover elastic linear contact, mover can be driven to move.
Operation principle：Piezoelectric fabric has the characteristic for the elongation that is powered, and is based on the characteristic, piezoelectric fabric is sticked to the thin of stator
On the downside of chip arc compliant mechanism, the size of pretightning force is adjusted by spring-damper, is stained with by the excitation of sawtooth wave electric signal
The stator of piezoelectric fabric makes stator generate friction drive, is transmitted on mover by driving head, driving mover movement.
The beneficial effects of the invention are as follows：It is simple in structure, precision is high, stroke is big.
Description of the drawings
Attached drawing described herein is used to provide further understanding of the present invention, and is constituted part of this application, this hair
Bright illustrative example and its explanation is not constituted improper limitations of the present invention for explaining the present invention.
Fig. 1 show the structural schematic diagram of the present invention；
Fig. 2 show the stator structure schematic diagram of the present invention；
Fig. 3 show the compliant mechanism structural schematic diagram of the present invention；
Fig. 4 show the compliant mechanism partial enlarged view of the present invention；
Fig. 5 show the driving principle schematic diagram of the present invention；
Fig. 6 show the sawtooth waveform schematic diagram of the present invention.
Wherein：1, pedestal；2, pretightning force weighted platform；3, stator；3-1, compliant mechanism；3-1-1, U-shaped buckstay；3-1-
2, the straight flexible hinge of sheet type；3-1-3, driving head；3-1-4, sheet type arc compliant mechanism；3-1-5, threaded hole；3-2, pressure
Electric fiber；3-3, screw；3-4, spring-damper；4, mover.
Specific implementation mode
The detailed content and its specific implementation mode further illustrated the present invention below in conjunction with the accompanying drawings.
Shown in Fig. 1 to Fig. 6, present embodiment provides a kind of the specific of the stick-slip linear actuator based on piezoelectric fabric
Embodiment.Stick-slip linear actuator based on piezoelectric fabric is by pedestal (1), pretightning force weighted platform (2), stator (3), mover
(4) it forms, wherein pretightning force weighted platform (2) and mover (4) are mounted on pedestal (1), and stator (3) is loaded mounted on pretightning force
On platform (2).The stator (3) includes compliant mechanism (3-1), piezoelectric fabric (3-2), screw (3-3), spring-damper
(3-4)；Apply sawtooth wave electric signal to piezoelectric fabric (3-2), in the slow deformation stages of 0-t1, piezoelectric fabric (3-2) is slowly stretched
Long, sheet type arc compliant mechanism (3-1-4) slowly stretches, and curvature becomes smaller, and so that driving head (3-1-3) is generated y to displacement, generates
Friction drive, driving mover (4) move；In the t1-t2 rapid deformation stages, piezoelectric fabric (3-2) quickly shortens, sheet type arc
Shape compliant mechanism (3-1-4) snapback, curvature become larger, and reduce frictional resistance.
The compliant mechanism (3-1) includes U-shaped buckstay (3-1-1), the straight flexible hinge of sheet type (3-1-2), driving
Head (3-1-3), sheet type arc compliant mechanism (3-1-4), threaded hole (3-1-5)；The U-shaped buckstay (3-1-1), thin slice
Connection is cyclic clockwise for the straight flexible hinge of formula (3-1-2), driving head (3-1-3) and sheet type arc compliant mechanism (3-1-4)；Institute
The sheet-like structure that the straight flexible hinge of sheet type (3-1-2) stated uses thickness as a, the sheet type arc compliant mechanism
(3-1-4) uses thickness for b arc thin slices；It is stained with piezoelectric fabric (3-2) on the downside of sheet type arc compliant mechanism (3-1-4), it can
Drive driving head (3-1-3) around the straight flexible hinge of sheet type (3-1-2) micro- rotation, driving mover (4) moves；The threaded hole
(3-1-5) be used for spring-damper (3-4) is installed, it can be achieved that between stator (3) and mover (4) pretightning force adjusting.
The driving head (3-1-3) is provided with driving head and pre-tightens plane (3-1-3-1), is used for and spring-damper (3-
4) it contacts；It is provided with driving head driving cambered surface (3-1-3-2), is used for and mover (4) elastic linear contact, driving mover (4) moves.
Claims (3)
1. the stick-slip linear actuator based on piezoelectric fabric, it is characterised in that：By pedestal (1), pretightning force weighted platform (2), determine
Sub (3), mover (4) composition, wherein pretightning force weighted platform (2) and mover (4) are mounted on pedestal (1), and stator (3) is mounted on
On pretightning force weighted platform (2), and with mover (4) Elastic Contact；The stator (3) includes compliant mechanism (3-1), piezoelectricity fibre
Tie up (3-2), screw (3-3), spring-damper (3-4)；Apply sawtooth wave electric signal to piezoelectric fabric (3-2), is slowly deforming
Stage, piezoelectric fabric (3-2) slowly extend, and sheet type arc compliant mechanism (3-1-4) slowly stretches, and curvature becomes smaller, and makes driving
Head (3-1-3) generates y to displacement, generates friction drive, driving mover (4) moves；In the rapid deformation stage, piezoelectric fabric
(3-2) quickly shortens, and sheet type arc compliant mechanism (3-1-4) snapback, curvature becomes larger, and reduces frictional resistance, inhibits
Mover (4) retracts.
2. the stick-slip linear actuator according to claim 1 based on piezoelectric fabric, it is characterised in that：The submissive machine
Structure (3-1) includes U-shaped buckstay (3-1-1), the straight flexible hinge of sheet type (3-1-2), driving head (3-1-3), sheet type arc
Compliant mechanism (3-1-4), threaded hole (3-1-5)；The U-shaped buckstay (3-1-1), the straight flexible hinge of sheet type (3-1-2),
Connection is cyclic clockwise for driving head (3-1-3) and sheet type arc compliant mechanism (3-1-4)；The straight flexible hinge of the sheet type
(3-1-2) uses thickness for the sheet-like structure of a, and the sheet type arc compliant mechanism (3-1-4) uses thickness for b arcs
Thin slice；Piezoelectric fabric (3-2) is stained with, it can be achieved that driving head (3-1-3) is around thin slice on the downside of sheet type arc compliant mechanism (3-1-4)
The straight flexible hinge of formula (3-1-2) micro- rotation, driving mover (4) move；The threaded hole (3-1-5) is for installing spring damping
Device (3-4), it can be achieved that between stator (3) and mover (4) pretightning force adjusting.
3. the stick-slip linear actuator according to claim 1 based on piezoelectric fabric, it is characterised in that：The driving head
(3-1-3) is provided with driving head and pre-tightens plane (3-1-3-1), for being contacted with spring-damper (3-4)；It is provided with driving head drive
Dynamic cambered surface (3-1-3-2), for and mover (4) Elastic Contact, mover (4) can be driven to move.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710212084.9A CN106849743B (en) | 2017-04-01 | 2017-04-01 | Stick-slip linear actuator based on piezoelectric fabric |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710212084.9A CN106849743B (en) | 2017-04-01 | 2017-04-01 | Stick-slip linear actuator based on piezoelectric fabric |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106849743A CN106849743A (en) | 2017-06-13 |
| CN106849743B true CN106849743B (en) | 2018-08-28 |
Family
ID=59142393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710212084.9A Expired - Fee Related CN106849743B (en) | 2017-04-01 | 2017-04-01 | Stick-slip linear actuator based on piezoelectric fabric |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106849743B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107124120A (en) * | 2017-06-16 | 2017-09-01 | 吉林大学 | A kind of single butterfly stator piezoelectricity straight line driver |
| CN107124119A (en) * | 2017-06-16 | 2017-09-01 | 吉林大学 | A kind of pair of butterfly stator piezoelectricity straight line driver |
| CN107134945B (en) * | 2017-06-16 | 2023-09-12 | 吉林大学 | Single omega-shaped piezoelectric linear driver |
| CN110120760A (en) * | 2019-06-18 | 2019-08-13 | 哈尔滨理工大学 | Double mode piezoelectricity stick-slip linear actuator |
| CN111162691B (en) * | 2020-01-08 | 2023-08-25 | 浙江师范大学 | Rotary motion driving device |
| CN111193436B (en) * | 2020-01-08 | 2024-04-23 | 浙江师范大学 | Stepping driving device |
| CN111130382A (en) * | 2020-01-08 | 2020-05-08 | 浙江师范大学 | Driving device with spring mechanism |
| CN111193435A (en) * | 2020-01-08 | 2020-05-22 | 浙江师范大学 | Rotary actuator |
| CN111181437B (en) * | 2020-01-08 | 2023-09-29 | 浙江师范大学 | Variable friction driving device |
| CN111162693A (en) * | 2020-01-08 | 2020-05-15 | 浙江师范大学 | Piezoelectric driving platform |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8441170B2 (en) * | 2011-04-21 | 2013-05-14 | National Kaohsiung University Of Applied Sciences | Stator and ultrasonic motor using the same |
| CN203457072U (en) * | 2013-07-25 | 2014-02-26 | 苏州大学 | Stick slip driving cross-dimension precision motion platform |
| CN106246515A (en) * | 2016-10-05 | 2016-12-21 | 吉林大学 | A kind of bionic pump based on flexible piezoelectric driver |
| CN206759337U (en) * | 2017-04-01 | 2017-12-15 | 吉林大学 | Stick-slip linear actuator based on piezoelectric fabric |
-
2017
- 2017-04-01 CN CN201710212084.9A patent/CN106849743B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN106849743A (en) | 2017-06-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106849743B (en) | Stick-slip linear actuator based on piezoelectric fabric | |
| US7301257B2 (en) | Motion actuator | |
| CN106817046B (en) | A kind of rotating driver based on piezoelectric fabric | |
| CN104467526B (en) | Inertia stick-slip cross-scale motion platform capable of achieving unidirectional movement | |
| JP5387811B2 (en) | Driving method of driving device | |
| EP2009711A3 (en) | Drive device and image stabilizer | |
| CN105827142A (en) | Precise piezoelectric stick-slip linear motor with asymmetric structure and driving method thereof | |
| CN107834895B (en) | Piezoelectricity-electromagnetism combination drive XY θ z three-degree of freedom flexible actuator and method | |
| WO2006114947A1 (en) | Drive device | |
| CN106712571B (en) | A kind of linear actuator based on piezoelectric fabric | |
| US11799397B2 (en) | Inertia drive motor and method for controlling such motor | |
| CN106712572B (en) | A kind of stick-slip linear actuator based on piezoelectric fabric | |
| CN206759337U (en) | Stick-slip linear actuator based on piezoelectric fabric | |
| CN205666773U (en) | Variable damping piezo -actuator | |
| CN206628996U (en) | A kind of rotating driver based on piezoelectric fabric | |
| CN210490748U (en) | Piezoelectric stick-slip driver based on L-shaped flexible hinge | |
| EP1983589A2 (en) | Driving device capable of reducing height thereof | |
| KR20070102769A (en) | Micro piezoelectric linear motor | |
| CN106849745B (en) | Stick-slip rotating driver based on piezoelectric fabric | |
| CN206628994U (en) | A kind of linear actuator based on piezoelectric fabric | |
| CN206628995U (en) | Stick-slip rotating driver based on piezoelectric fabric | |
| CN105846719A (en) | Variable damping piezoelectric actuator | |
| JP6406593B2 (en) | Drive mechanism | |
| CN206759338U (en) | A kind of stick-slip linear actuator based on piezoelectric fabric | |
| JP5709631B2 (en) | Vibration wave motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180828 Termination date: 20190401 |