CN206628996U - A kind of rotating driver based on piezoelectric fabric - Google Patents
A kind of rotating driver based on piezoelectric fabric Download PDFInfo
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- CN206628996U CN206628996U CN201720338706.8U CN201720338706U CN206628996U CN 206628996 U CN206628996 U CN 206628996U CN 201720338706 U CN201720338706 U CN 201720338706U CN 206628996 U CN206628996 U CN 206628996U
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- compliant mechanism
- piezoelectric fabric
- thin slice
- rotor
- stator
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Abstract
A kind of rotating driver 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), rotor (4)；Wherein pretightning force weighted platform (2) and rotor (4) are arranged on pedestal (1), stator (3) is arranged on pretightning force weighted platform (2), stator (3) and rotor (4) Elastic Contact；Described stator (3) includes compliant mechanism (3 1), piezoelectric fabric I (3 2), piezoelectric fabric II (3 3)；Electric signal is driven by applying sawtooth waveforms to piezoelectric fabric I (3 2) and piezoelectric fabric II (3 3), piezoelectric fabric I (3 2) and piezoelectric fabric II (3 3) cooperates, stator (3) is set to produce friction drive, based on stick-slip principle, driving rotor (4) rotates.The utility model advantage is：It is simple in construction, be easily assembled, precision is high, stroke is big, available for fields such as micro-nano technology, precision optics, Aero-Space.
Description
Technical field
A kind of rotating driver 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 rotating driver based on piezoelectric fabric.
The utility model is achieved through the following technical solutions：It is a kind of based on the rotating driver of piezoelectric fabric by pedestal, pre-
Clamp force weighted platform, stator, rotor composition, wherein pretightning force weighted platform and rotor are arranged on pedestal, and stator is fixedly mounted
On pretightning force weighted platform, stator keeps Elastic Contact with rotor；Described stator includes compliant mechanism, piezoelectric fabric I, pressure
Electric fiber II.By applying same positive-going sawtooth wave driving electric signal to piezoelectric fabric I and piezoelectric fabric II, inverted-C thin slice is soft
Stretched along mechanism and C-shaped thin slice compliant mechanism, curvature diminishes, and makes semicolumn driving head generation-y to displacement, while produce-x to
Displacement, based on stick-slip principle of inertia, driving rotor rotates counterclockwise；To piezoelectric fabric I apply positive-going sawtooth wave driving electric signal,
Piezoelectric fabric II applies negative-going sawtooth wave driving electric signal, and inverted-C thin slice compliant mechanism shrinks, and curvature becomes big, and C-shaped thin slice is submissive
Mechanism stretches, and curvature diminishes, and based on stick-slip principle of inertia, semicolumn driving head driving rotor clockwise rotates.
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；Described inverted-C thin slice compliant mechanism, compliant mechanism tie-beam I, C-shaped
Thin slice compliant mechanism, compliant mechanism tie-beam II surround ring counterclockwise；Described inverted-C thin slice compliant mechanism, concave side middle part connect
Rigid base is connect, convex side is used to paste piezoelectric fabric I；The described convex side of C-shaped thin slice compliant mechanism is used to paste piezoelectric fabric II；
Described semicolumn driving head is arranged in the middle part of compliant mechanism tie-beam II, and rotor Elastic Contact, for driving rotor to rotate.
Operation principle of the present utility model：There is piezoelectric fabric logical positive electricity to extend, the characteristic that negative electricity shrinks, based on the spy
Property, piezoelectric fabric is encouraged by driving electric signal, piezoelectric fabric I and piezoelectric fabric II cooperate, and stator is produced friction and drive
Power, based on stick-slip principle, driving rotor rotates.
The beneficial effects of the utility model are：It is simple in construction, be easy to that assembling, precision are high, 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 the utility model compliant mechanism structural representation；
Fig. 4 show counterclockwise movement driving principle schematic diagram of the present utility model；
Fig. 5 show counterclockwise movement driving electric signal waveform schematic diagram of the present utility model；
Fig. 6 show clockwise movement driving principle schematic diagram of the present utility model；
Fig. 7 show clockwise movement 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 I；3-3, piezoelectric fabric II；4th, rotor.
Embodiment
Detailed content and its embodiment of the present utility model are further illustrated below in conjunction with the accompanying drawings.
It is described a kind of to be added based on the rotating driver of piezoelectric fabric by pedestal (1), pretightning force referring to shown in Fig. 1 to Fig. 5
Carrying platform (2), stator (3), rotor (4) composition, wherein pretightning force weighted platform (2) and rotor (4) are arranged on pedestal (1),
Stator (3) is fixedly mounted on pretightning force weighted platform (2), and stator (3) keeps elastic linear contact with rotor (4).Described determines
Sub (3) include compliant mechanism (3-1), piezoelectric fabric I (3-2), piezoelectric fabric II (3-3).
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 counterclockwise；Described inverted-C thin slice compliant mechanism (3-1-1),
Connection rigid base (3-1-6) in the middle part of concave side, convex side are used to paste piezoelectric fabric I (3-2)；Described C-shaped thin slice compliant mechanism
(3-1-3) convex side is used to paste piezoelectric fabric II (3-3)；Described semicolumn driving head (3-1-5) is arranged at compliant mechanism company
Connect in the middle part of beam II (3-1-4), and rotor (4) Elastic Contact, for driving rotor (4) to rotate.
By applying driving electric signal as shown in Figure 5 to piezoelectric fabric I (3-2) and piezoelectric fabric II (3-3), in 0-t1
Slow deformation stage, piezoelectric fabric I (3-2) and piezoelectric fabric II (3-3) slowly shorten, inverted-C thin slice compliant mechanism (3-1-1)
Stretched with C-shaped thin slice compliant mechanism (3-1-3), curvature diminishes, and makes semicolumn driving head (3-1-5) generation-y to displacement, increase
Semicolumn driving head (3-1-5) and rotor (4) pressure, so as to increase frictional force, while-x are produced to displacement, drive rotor
(4) rotate counterclockwise；In the t1-t2 rapid deformation stages, inverted-C thin slice compliant mechanism (3-1-1) and C-shaped thin slice compliant mechanism
(3-1-3) snapback, curvature become big, and rotor (4) keeps current location constant.
Referring to shown in Fig. 6, Fig. 7, apply driving electric signal to piezoelectric fabric I (3-2) and piezoelectric fabric II (3-3), in 0-
The slow deformation stages of t1, piezoelectric fabric I (3-2) slowly extend, and inverted-C thin slice compliant mechanism (3-1-1) shrinks, and curvature becomes big,
Piezoelectric fabric II (3-3) slowly shortens, and C-shaped thin slice compliant mechanism (3-1-3) stretching, extension, curvature diminishes, semicolumn driving head (3-1-
5) rotor (4) is driven to rotate clockwise；In the t1-t2 rapid deformation stages, piezoelectric fabric I (3-2) quickly shortens, inverted-C thin slice
Compliant mechanism (3-1-1) stretches, and curvature diminishes, piezoelectric fabric II (3-3) rapid elongation, and C-shaped thin slice compliant mechanism (3-1-3) returns
Contracting, curvature become big, and rotor (4) keeps current location constant.
Claims (2)
- A kind of 1. 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), the fixed peace of stator (3) On pretightning force weighted platform (2), stator (3) keeps Elastic Contact with rotor (4)；Described stator (3) includes submissive machine Structure (3-1), piezoelectric fabric I (3-2), piezoelectric fabric II (3-3)；By to piezoelectric fabric I (3-2) and piezoelectric fabric II (3-3) Apply same positive-going sawtooth wave driving electric signal, inverted-C thin slice compliant mechanism (3-1-1) and C-shaped thin slice compliant mechanism (3-1-3) Stretching, extension, curvature diminish, and semicolumn driving head (3-1-5) generation-y, based on stick-slip principle of inertia, is driven to displacement and-x to displacement Turn (4) rotates counterclockwise；Apply positive-going sawtooth wave driving electric signal, piezoelectric fabric II (3-3) to piezoelectric fabric I (3-2) Apply negative-going sawtooth wave driving electric signal, inverted-C thin slice compliant mechanism (3-1-1) shrinks, and curvature becomes big, the submissive machine of C-shaped thin slice Structure (3-1-3) stretches, and curvature diminishes, clockwise based on stick-slip principle of inertia, semicolumn driving head (3-1-5) driving rotor (4) Rotate.
- A kind of 2. rotating driver 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；Described inverted-C thin slice compliant mechanism (3-1-1), concave side middle part connection rigid base (3-1-6), convex side are used to paste piezoelectric fabric I (3-2)；Described C-shaped thin slice compliant mechanism (3-1-3) convex side, which is used to paste, presses Electric fiber II (3-3)；Described semicolumn driving head (3-1-5) is arranged in the middle part of compliant mechanism tie-beam II (3-1-4), with turning Sub (4) Elastic Contact, for driving rotor (4) to rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720338706.8U CN206628996U (en) | 2017-04-01 | 2017-04-01 | A kind of rotating driver based on piezoelectric fabric |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720338706.8U CN206628996U (en) | 2017-04-01 | 2017-04-01 | A kind of rotating driver based on piezoelectric fabric |
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| Publication Number | Publication Date |
|---|---|
| CN206628996U true CN206628996U (en) | 2017-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720338706.8U Withdrawn - After Issue CN206628996U (en) | 2017-04-01 | 2017-04-01 | A kind of rotating driver based on piezoelectric fabric |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106817046A (en) * | 2017-04-01 | 2017-06-09 | 吉林大学 | A kind of rotating driver based on piezoelectric fabric |
| CN114992453A (en) * | 2022-06-07 | 2022-09-02 | 重庆大学 | Controllable plane high-precision flexible displacement platform with high load and large stroke |
-
2017
- 2017-04-01 CN CN201720338706.8U patent/CN206628996U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106817046A (en) * | 2017-04-01 | 2017-06-09 | 吉林大学 | A kind of rotating driver based on piezoelectric fabric |
| CN106817046B (en) * | 2017-04-01 | 2019-04-02 | 吉林大学 | A kind of rotating driver based on piezoelectric fabric |
| CN114992453A (en) * | 2022-06-07 | 2022-09-02 | 重庆大学 | Controllable plane high-precision flexible displacement platform with high load and large stroke |
| CN114992453B (en) * | 2022-06-07 | 2024-02-27 | 重庆大学 | Controllable plane high-precision flexible displacement platform with high load and large stroke |
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| 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: 20190402 |