CN206628994U - A kind of linear actuator based on piezoelectric fabric - Google Patents
A kind of linear actuator based on piezoelectric fabric Download PDFInfo
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- CN206628994U CN206628994U CN201720338690.0U CN201720338690U CN206628994U CN 206628994 U CN206628994 U CN 206628994U CN 201720338690 U CN201720338690 U CN 201720338690U CN 206628994 U CN206628994 U CN 206628994U
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- compliant mechanism
- mover
- piezoelectric fabric
- thin slice
- stator
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Abstract
A kind of linear actuator based on piezoelectric fabric is the utility model is related to, belongs to micro-nano precision actuation field.It is made up of pedestal (1), pretightning force weighted platform (2), stator (3), mover (4), wherein pretightning force weighted platform (2) and mover (4) be arranged on pedestal (1) on, stator (3) be arranged on pretightning force weighted platform (2) on and with mover (4) Elastic Contact；Described stator (3) includes compliant mechanism (3 1), piezoelectric fabric (3 2)；Electric signal is driven by applying sawtooth waveforms to piezoelectric fabric (3 2), piezoelectric fabric (3 2) slowly shortens, rapid elongation, stator (3) is set to produce friction drive, it is delivered to by semicolumn driving head (3 1 4) on mover (4), based on stick-slip principle, driving mover (4) motion.The utility model advantage is：It is simple in construction, precision is high, stroke is big, available for fields such as micro-nano technology, precision optics, Aero-Space.
Description
Technical field
A kind of linear actuator based on piezoelectric fabric is the utility model is related to, belongs 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
The requirement more and more higher of rice precision actuation technology, each research institution is also actively entering to big stroke, high-precision piezoelectric actuator
Row research.Big stroke and high accuracy are conflicting, how preferably to solve this contradiction, realize big stroke, high-precision piezoelectricity
Driver turns into a urgent problem to be solved.Piezoelectric fabric is a kind of new piezoelectric, has flexible big, quality
It is small, it is adapted to be attached at surface, higher electromechanical coupling factor, the advantages that survivability is strong, available for realizing big stroke, high-precision
The design of the piezoelectric actuator of degree.
The content of the invention
To realize big stroke, high-precision combination, the utility model discloses a kind of linear actuator based on piezoelectric fabric.
The utility model is achieved through the following technical solutions：
A kind of linear actuator based on piezoelectric fabric, it is made up of pedestal, pretightning force weighted platform, stator, mover, wherein
Pretightning force weighted platform and mover are arranged on pedestal, and stator is fixedly mounted on pretightning force weighted platform, and stator is pre- with mover
Close contact.Stator includes compliant mechanism, piezoelectric fabric.By applying sawtooth waveforms electric signal to piezoelectric fabric, in slowly deformation rank
Section, piezoelectric fabric slowly shorten, and inverted-C thin slice compliant mechanism stretching, extension, curvature diminishes, and makes semicolumn driving head generation-y to position
Move, normal pressure of the semicolumn driving head to mover is increased by compliant mechanism tie-beam II, so as to add frictional force, simultaneously
Generation-x moves to displacement, generation-x to driving force, driving mover；In the rapid deformation stage, piezoelectric fabric rapid elongation, C
Shape thin slice compliant mechanism snapback, curvature become big, reduce frictional resistance, suppress mover and retract.
Compliant mechanism includes inverted-C thin slice compliant mechanism, compliant mechanism tie-beam I, C-shaped thin slice compliant mechanism, submissive machine
Structure tie-beam II, semicolumn driving head, rigid base.Inverted-C thin slice compliant mechanism, compliant mechanism tie-beam I, C-shaped thin slice are soft
Ring is surrounded counterclockwise along mechanism, compliant mechanism tie-beam II, and rigid base is connected in the middle part of the concave side of inverted-C thin slice compliant mechanism,
Convex side is used to paste piezoelectric fabric.Semicolumn driving head is arranged in the middle part of compliant mechanism tie-beam II, is contacted with mover, for driving
Dynamic mover motion.
The beneficial effects of the utility model are：Simple in construction, precision is high, and stroke is big.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding to of the present utility model, forms the part of the application,
Illustrative example of the present utility model and its illustrate be used for explain the utility model, do not form to improper limit of the present utility model
It is fixed.
Fig. 1 show structural representation of the present utility model；
Fig. 2 show stator structure schematic diagram of the present utility model；
Fig. 3 show compliant mechanism structural representation of the present utility model；
Fig. 4 show driving principle schematic diagram of the present utility model；
Fig. 5 show sawtooth waveforms driving electric signal waveform schematic diagram of the present utility model.
Wherein：1st, pedestal；2nd, pretightning force weighted platform；3rd, stator；3-1, compliant mechanism；3-1-1, inverted-C thin slice are submissive
Mechanism；3-1-2, compliant mechanism tie-beam I；3-1-3, C-shaped thin slice compliant mechanism；3-1-4, compliant mechanism tie-beam II；3-1-
5th, semicolumn driving head；3-1-6, rigid base；3-2, piezoelectric fabric；4th, rotor.
Embodiment
Detailed content and its embodiment of the present utility model are further illustrated below in conjunction with the accompanying drawings.
Referring to shown in Fig. 1 to Fig. 5, present embodiment provides a kind of specific implementation of the linear actuator based on piezoelectric fabric
Scheme.A kind of described linear actuator based on piezoelectric fabric, by pedestal (1), pretightning force weighted platform (2), stator (3),
Mover (4) is formed, and wherein pretightning force weighted platform (2) and mover (4) are arranged on pedestal (1), and stator (3) is fixedly mounted on pre-
On clamp force weighted platform (2), stator (3) and mover (4) pre- close contact.Described stator (3) includes compliant mechanism (3-1), pressure
Electric fiber (3-2).
Described compliant mechanism (3-1) includes inverted-C thin slice compliant mechanism (3-1-1), compliant mechanism tie-beam I (3-1-
2), C-shaped thin slice compliant mechanism (3-1-3), compliant mechanism tie-beam II (3-1-4), semicolumn driving head (3-1-5), rigid base
Seat (3-1-6).Described inverted-C thin slice compliant mechanism (3-1-1), compliant mechanism tie-beam I (3-1-2), the submissive machine of C-shaped thin slice
Structure (3-1-3), compliant mechanism tie-beam II (3-1-4) surround ring, described inverted-C thin slice compliant mechanism (3-1-1) counterclockwise
Concave side in the middle part of connection rigid base (3-1-6), convex side be used for paste piezoelectric fabric (3-2).Described semicolumn driving head (3-
1-5) it is arranged in the middle part of compliant mechanism tie-beam II (3-1-4), and mover (4) Elastic Contact, for driving mover (4) to move.
By applying sawtooth waveforms electric signal to piezoelectric fabric (3-2), in the slow deformation stages of 0-t1, piezoelectric fabric (3-2)
Slowly shorten, inverted-C thin slice compliant mechanism (3-1-1) stretching, extension, curvature diminishes, make semicolumn driving head (3-1-5) generation-y to
Displacement, normal pressure of the semicolumn driving head (3-1-5) to mover (4) is increased by compliant mechanism tie-beam II (3-1-4), from
And frictional force is added, while produce-x and moved to displacement, generation-x to driving force, driving mover (4)；Quickly become in t1-t2
Shape stage, piezoelectric fabric (3-2) rapid elongation, inverted-C thin slice compliant mechanism (3-1-1) snapback, curvature become big, reduced
Frictional resistance, suppress mover (4) and retract.
Claims (2)
- A kind of 1. 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 arranged on pedestal (1), the fixed peace of stator (3) On pretightning force weighted platform (2), stator (3) and mover (4) elastic linear contact；Described stator (3) includes compliant mechanism (3-1), piezoelectric fabric (3-2)；By applying sawtooth waveforms electric signal, slow deformation stage, piezoelectric fabric to piezoelectric fabric (3-2) (3-2) slowly shortens, and inverted-C thin slice compliant mechanism (3-1-1) stretching, extension, curvature diminishes, and produces semicolumn driving head (3-1-5) Raw-y increases semicolumn driving head (3-1-5) to mover (4) just to displacement, by compliant mechanism tie-beam II (3-1-4) Pressure, so as to add frictional force, while produce-x and moved to displacement, generation-x to driving force, driving mover (4)；It is quick to become Shape stage, piezoelectric fabric (3-2) rapid elongation, inverted-C thin slice compliant mechanism (3-1-1) snapback, curvature become big, reduced Frictional resistance, suppress mover (4) and retract.
- A kind of 2. linear actuator based on piezoelectric fabric according to claim 1, it is characterised in that：Described submissive machine Structure (3-1) includes inverted-C thin slice compliant mechanism (3-1-1), compliant mechanism tie-beam I (3-1-2), C-shaped thin slice compliant mechanism (3- 1-3), compliant mechanism tie-beam II (3-1-4), semicolumn driving head (3-1-5), rigid base (3-1-6)；Described inverted-C Thin slice compliant mechanism (3-1-1), compliant mechanism tie-beam I (3-1-2), C-shaped thin slice compliant mechanism (3-1-3), compliant mechanism connect Meet beam II (3-1-4) and surround ring counterclockwise；Rigid base is connected in the middle part of the concave side of described inverted-C thin slice compliant mechanism (3-1-1) Seat (3-1-6), convex side are used to paste piezoelectric fabric (3-2)；Described semicolumn driving head (3-1-5) is arranged at compliant mechanism company Connect in the middle part of beam II (3-1-4), contacted with mover (4), for driving mover (4) to move.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720338690.0U CN206628994U (en) | 2017-04-01 | 2017-04-01 | A kind of linear actuator based on piezoelectric fabric |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720338690.0U CN206628994U (en) | 2017-04-01 | 2017-04-01 | A kind of linear actuator based on piezoelectric fabric |
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| Publication Number | Publication Date |
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| CN206628994U true CN206628994U (en) | 2017-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720338690.0U Withdrawn - After Issue CN206628994U (en) | 2017-04-01 | 2017-04-01 | A kind of linear actuator based on piezoelectric fabric |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106712571A (en) * | 2017-04-01 | 2017-05-24 | 吉林大学 | Linear driver based on piezoelectric fiber based on piezoelectric fiber |
-
2017
- 2017-04-01 CN CN201720338690.0U patent/CN206628994U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106712571A (en) * | 2017-04-01 | 2017-05-24 | 吉林大学 | Linear driver based on piezoelectric fiber based on piezoelectric fiber |
| CN106712571B (en) * | 2017-04-01 | 2018-05-15 | 吉林大学 | A kind of linear actuator based on piezoelectric fabric |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20171110 Effective date of abandoning: 20180515 |
|
| AV01 | Patent right actively abandoned |