CN206759338U - A kind of stick-slip linear actuator based on piezoelectric fabric - Google Patents
A kind of stick-slip linear actuator based on piezoelectric fabric Download PDFInfo
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- CN206759338U CN206759338U CN201720338717.6U CN201720338717U CN206759338U CN 206759338 U CN206759338 U CN 206759338U CN 201720338717 U CN201720338717 U CN 201720338717U CN 206759338 U CN206759338 U CN 206759338U
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- piezoelectric fabric
- mover
- stator
- stick
- pretightning force
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Abstract
A kind of stick-slip linear actuator based on piezoelectric fabric is the utility model is related to, belongs to micro-nano precision actuation field.Including 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) is made up of fixed seat (3 1), flexible cantilever beam (3 2), piezoelectric fabric I (3 3), piezoelectric fabric II (3 4), cylinder driving head (3 5), stator (3) is in J-shaped, by applying sawtooth waveforms electric signal to piezoelectric fabric I (3 3) and piezoelectric fabric II (3 4), piezoelectric fabric slowly extends, it is quick to shorten, stator (3) is set to produce friction drive, it is delivered to by cylinder driving head (3 5) 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 stick-slip linear actuator based on piezoelectric fabric is the utility model is related to, belongs to micro-nano precision actuation technology neck
Domain.
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
In order to realize big stroke, high-precision combination, the utility model discloses a kind of stick-slip straight line based on piezoelectric fabric
Driver.
The utility model is achieved through the following technical solutions：
A kind of stick-slip linear actuator based on piezoelectric fabric, is made up of pedestal, pretightning force weighted platform, stator, mover,
Wherein pretightning force weighted platform and mover be arranged on pedestal on, stator be arranged on pretightning force weighted platform on and with rotor elastic connecting
Touch.Described stator is made up of fixed seat, flexible cantilever beam, piezoelectric fabric I, piezoelectric fabric II, cylinder driving head, and stator is in J
Shape, by applying sawtooth waveforms electric signal to piezoelectric fabric I and piezoelectric fabric II, piezoelectric fabric slowly extends, quick to shorten, and it is fixed to make
Son produces friction drive, is delivered to by cylinder driving head on mover, based on stick-slip principle, driving mover motion.
It is T-shaped before described stator pretension, it is pre- next, in J-type；Described flexible cantilever beam uses thin slice of the thickness for a
Formula structure, thickness are that b piezoelectric fabric I and piezoelectric fabric II are bonded at flexible cantilever beam both sides, and cylinder driving head is in flexible cantilever
The end of beam, for driving mover to move.
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 stator comparison diagram before and after stator partial enlarged drawing and pretension 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, fixed seat；3-2, flexible cantilever beam；3-3, pressure
Electric fiber I；3-4, piezoelectric fabric II；3-5, cylinder driving head；4th, mover.
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 the specific of stick-slip linear actuator based on piezoelectric fabric
Embodiment.A kind of described stick-slip linear actuator based on piezoelectric fabric is by pedestal (1), pretightning force weighted platform (2), fixed
Sub (3), mover (4) composition, wherein pretightning force weighted platform (2) and mover (4) are arranged on pedestal (1), and stator (3) is fixed on
On pretightning force weighted platform (2) and with mover (4) Elastic Contact；Described stator (3) is by fixed seat (3-1), flexible cantilever beam
(3-2), piezoelectric fabric I (3-3), piezoelectric fabric II (3-4), cylinder driving head (3-5) composition.
It is T-shaped before described stator (3) pretension, cylinder driving head (3-5) and mover (4) unstressed contact, stator (3)-y
To feeding h, make flexible cantilever beam deflection pretension, it is pre- next, in J-type；Described flexible cantilever beam (3-2) uses thickness as a's
Sheet-like structure, thickness are that b piezoelectric fabric I (3-3) and piezoelectric fabric II (3-4) are bonded at flexible cantilever beam (3-2) both sides, circle
Post driving head (3-5) is in flexible cantilever beam (3-2) end, and mover (4) Elastic Contact, for driving mover (4) to move.
Apply sawtooth waveforms driving electric signal to piezoelectric fabric I (3-3) and piezoelectric fabric II (3-4), 0-t1 slowly deforms rank
Section, piezoelectric fabric I (3-3) and piezoelectric fabric II (3-4) slowly elongation, the t1-t2 rapid deformation stages, piezoelectric fabric I (3-3) and
Piezoelectric fabric II (3-4) quickly shortens, and stator (3) is produced friction drive, mover is delivered to by cylinder driving head (3-5)
On, based on stick-slip principle, driving mover (4) motion.
Claims (2)
- A kind of 1. stick-slip linear actuator based on piezoelectric fabric, it is characterised in that：By pedestal (1), pretightning force weighted platform (2), stator (3), mover (4) composition, wherein pretightning force weighted platform (2) and mover (4) are arranged on pedestal (1), stator (3) Be fixed on pretightning force weighted platform (2) and with mover (4) Elastic Contact；Described stator (3) is by fixed seat (3-1), flexibility Cantilever beam (3-2), piezoelectric fabric I (3-3), piezoelectric fabric II (3-4), cylinder driving head (3-5) composition；Stator (3) is in J-shaped, By applying sawtooth waveforms electric signal to piezoelectric fabric I (3-3) and piezoelectric fabric II (3-4), piezoelectric fabric slowly extends, quick contracting It is short, stator (3) is produced friction drive, be delivered to by cylinder driving head (3-5) on mover (4), it is former based on stick-slip Reason, driving mover (4) motion.
- A kind of 2. stick-slip linear actuator based on piezoelectric fabric according to claim 1, it is characterised in that：Described determines It is T-shaped before sub (3) pretension, it is pre- next, in J-type；Described flexible cantilever beam (3-2) uses sheet-like structure of the thickness for a, thick Spend and be bonded at flexible cantilever beam (3-2) both sides, cylinder driving head (3-5) for b piezoelectric fabric I (3-3) and piezoelectric fabric II (3-4) In flexible cantilever beam (3-2) end, and mover (4) Elastic Contact, for driving mover (4) to move.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720338717.6U CN206759338U (en) | 2017-04-01 | 2017-04-01 | A kind of stick-slip linear actuator based on piezoelectric fabric |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720338717.6U CN206759338U (en) | 2017-04-01 | 2017-04-01 | A kind of stick-slip linear actuator based on piezoelectric fabric |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206759338U true CN206759338U (en) | 2017-12-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720338717.6U Withdrawn - After Issue CN206759338U (en) | 2017-04-01 | 2017-04-01 | A kind of stick-slip linear actuator based on piezoelectric fabric |
Country Status (1)
| Country | Link |
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| CN (1) | CN206759338U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106712572A (en) * | 2017-04-01 | 2017-05-24 | 吉林大学 | Piezoelectric fiber-based stick-slip linear actuator |
-
2017
- 2017-04-01 CN CN201720338717.6U patent/CN206759338U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106712572A (en) * | 2017-04-01 | 2017-05-24 | 吉林大学 | Piezoelectric fiber-based stick-slip linear actuator |
| CN106712572B (en) * | 2017-04-01 | 2019-01-15 | 吉林大学 | A kind of stick-slip 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 | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20171215 Effective date of abandoning: 20190111 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20171215 Effective date of abandoning: 20190115 |