CN206628995U - Stick-slip rotating driver based on piezoelectric fabric - Google Patents
Stick-slip rotating driver based on piezoelectric fabric Download PDFInfo
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- CN206628995U CN206628995U CN201720338716.1U CN201720338716U CN206628995U CN 206628995 U CN206628995 U CN 206628995U CN 201720338716 U CN201720338716 U CN 201720338716U CN 206628995 U CN206628995 U CN 206628995U
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- piezoelectric fabric
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Abstract
The stick-slip rotating driver 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), rotor (4)；Wherein pretightning force weighted platform (2) and rotor (4) are arranged on pedestal (1), and stator (3) is arranged on pretightning force weighted platform (2), with rotor (4) Elastic Contact；Stator (3) includes fixed seat (3 1), flexible cantilever beam (3 2), piezoelectric fabric I (3 3), piezoelectric fabric II (3 4), driving head (3 5)；It is pre- next, stator (3) is in J-shaped, apply driving electric signal to piezoelectric fabric I (3 3) and piezoelectric fabric II (3 4), piezoelectric fabric slowly extends, quick to shorten, based on stick-slip principle, driving rotor (4) rotates, by changing symmetry, the frequency shift feed speed of sawtooth waveforms, change voltage magnitude and change feed accuracy.The utility model advantage：Simple in construction, precision is high, and stroke is big, available for fields such as micro-nano technology, precision optics, Aero-Space.
Description
Technical field
A kind of stick-slip rotating driver 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 rotation based on piezoelectric fabric
Driver.
The utility model is achieved through the following technical solutions：
Stick-slip rotating driver based on piezoelectric fabric is made up of pedestal, pretightning force weighted platform, stator, rotor, wherein
Pretightning force weighted platform and rotor are arranged on pedestal, and stator is fixed on pretightning force weighted platform, with rotor Elastic Contact；Institute
The stator stated is made up of fixed seat, flexible cantilever beam, piezoelectric fabric I, piezoelectric fabric II, driving head；Described stator is in J-shaped,
By applying driving electric signal to piezoelectric fabric I and piezoelectric fabric II, piezoelectric fabric slowly extends, quick to shorten, based on stick-slip
Motion principle, friction drive caused by stator, is delivered on rotor by driving head, and driving rotor rotates.
Described stator, it is T-shaped before pretension, driving head with rotor is unstressed contacts, stator-y carries out pretension to feeding h,
Pre- next stator is in J-shaped；Driving head and rotor contact normal and y forward directions angle are into β degree；Described flexible cantilever beam is using thick
The sheet-like structure for a is spent, thickness is that b piezoelectric fabric I is bonded at the right side of flexible cantilever beam, and piezoelectric fabric II is bonded at flexible outstanding
The left side of arm beam, driving head are arranged on the end of flexible cantilever beam, driving head and rotor Elastic Contact, and driving rotor rotates.
Operation principle：Piezoelectric fabric has the characteristic for the elongation that is powered, and based on the characteristic, piezoelectric fabric is bonded at into flexible cantilever
The both sides of beam, pre- next, by driving electric signal excitation to be stained with the stator of piezoelectric fabric, piezoelectric fabric slowly extends, quick contracting
Short, based on stick-slip principle, stator produces friction drive, and driving rotor rotates.
The beneficial effects of the utility model are：Simple in construction, precision is high, and stroke is big.
Brief description of the drawings
Below in conjunction with the accompanying drawings and embodiment further illustrates to the utility model.In accompanying drawing：
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 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, driving head；4th, rotor.
Embodiment
Detailed content and its embodiment of the present utility model are further illustrated below in conjunction with the accompanying drawings.
Present embodiment provides a kind of specific embodiment of the stick-slip rotating driver based on piezoelectric fabric, referring to Fig. 1
Shown in Fig. 4, the stick-slip rotating driver based on piezoelectric fabric by pedestal (1), pretightning force weighted platform (2), stator (3), turn
Sub (4) composition, wherein pretightning force weighted platform (2) and rotor (4) are arranged on pedestal (1), and stator (3) is fixed on pretightning force and added
On carrying platform (2), with rotor (4) Elastic Contact；Described stator (3) is by fixed seat (3-1), flexible cantilever beam (3-2), piezoelectricity
Fiber I (3-3), piezoelectric fabric II (3-4), driving head (3-5) composition.
Described stator (3), T-shaped before pretension, driving head (3-5) and rotor (4) unstressed contact, stator (3)-y to
Feed h and carry out pretension, pre- next stator (3) be in J-shaped, and driving head (3-5) and rotor (4) contact normal and y forward directions angle are into β
Degree；Described flexible cantilever beam (3-2) uses sheet-like structure of the thickness for a, and thickness is bonded at soft for b piezoelectric fabric I (3-3)
Property cantilever beam (3-2) right side, piezoelectric fabric II (3-4) is bonded at flexible cantilever beam (3-2) left side, and driving head (3-5) is set
In flexible cantilever beam (3-2) end, driving head (3-5) and rotor (4) Elastic Contact, driving rotor (4) rotate.
As shown in figure 5, by applying driving electric signal to piezoelectric fabric I (3-3) and piezoelectric fabric II (3-4), 0-t1 delays
Slow load phase, piezoelectric fabric I (3-3) and piezoelectric fabric II (3-4) slowly extend, the t1-t2 fast discharging stages, piezoelectric fabric
I (3-3) and piezoelectric fabric II (3-4) quickly shortens, and based on stick-slip principle, friction drive caused by stator (3), passes through
Driving head (3-5) is delivered on rotor (4), and driving rotor (4) rotates.
Claims (2)
1. the stick-slip rotating driver based on piezoelectric fabric, it is characterised in that：By pedestal (1), pretightning force weighted platform (2), determine
Sub (3), rotor (4) composition, wherein pretightning force weighted platform (2) and rotor (4) are arranged on pedestal (1), and stator (3) is fixed on
On pretightning force weighted platform (2) and with rotor (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), driving head (3-5) composition；Described stator (3) is in J-shaped, is passed through
Apply driving electric signal, piezoelectric fabric I (3-3) and piezoelectric fabric II (3- to piezoelectric fabric I (3-3) and piezoelectric fabric II (3-4)
4) slowly elongation, it is quick to shorten, based on stick-slip principle, friction drive caused by stator (3), pass through driving head (3-5)
It is delivered on rotor (4), driving rotor (4) rotates.
2. the stick-slip rotating driver according to claim 1 based on piezoelectric fabric, it is characterised in that：Described stator
(3), T-shaped before pretension, pre- next, stator (3) is in J-shaped；Described flexible cantilever beam (3-2) uses sheet type of the thickness for a
Structure, thickness are that b piezoelectric fabric I (3-3) is bonded at flexible cantilever beam (3-2) right side, and piezoelectric fabric II (3-4) is bonded at flexibility
The left side of cantilever beam (3-2), driving head (3-5) are arranged on flexible cantilever beam (3-2) end, driving head (3-5) and rotor (4)
Elastic Contact, driving rotor (4) rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720338716.1U CN206628995U (en) | 2017-04-01 | 2017-04-01 | Stick-slip rotating driver based on piezoelectric fabric |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720338716.1U CN206628995U (en) | 2017-04-01 | 2017-04-01 | Stick-slip rotating driver based on piezoelectric fabric |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206628995U true CN206628995U (en) | 2017-11-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720338716.1U Withdrawn - After Issue CN206628995U (en) | 2017-04-01 | 2017-04-01 | Stick-slip rotating driver based on piezoelectric fabric |
Country Status (1)
| Country | Link |
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| CN (1) | CN206628995U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106849745A (en) * | 2017-04-01 | 2017-06-13 | 吉林大学 | Stick-slip rotating driver based on piezoelectric fabric |
| CN109861582A (en) * | 2019-04-03 | 2019-06-07 | 合肥工业大学 | A kind of inertial rotation piezo-electric motor |
-
2017
- 2017-04-01 CN CN201720338716.1U patent/CN206628995U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106849745A (en) * | 2017-04-01 | 2017-06-13 | 吉林大学 | Stick-slip rotating driver based on piezoelectric fabric |
| CN109861582A (en) * | 2019-04-03 | 2019-06-07 | 合肥工业大学 | A kind of inertial rotation piezo-electric motor |
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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: 20171110 Effective date of abandoning: 20190405 |