CN109889089A - A kind of step piezoelectric rotating driver twice - Google Patents
A kind of step piezoelectric rotating driver twice Download PDFInfo
- Publication number
- CN109889089A CN109889089A CN201910090839.1A CN201910090839A CN109889089A CN 109889089 A CN109889089 A CN 109889089A CN 201910090839 A CN201910090839 A CN 201910090839A CN 109889089 A CN109889089 A CN 109889089A
- Authority
- CN
- China
- Prior art keywords
- flexible hinge
- parallelogram
- rotating platform
- parallelogram flexible
- board
- 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.)
- Granted
Links
Landscapes
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
The present invention relates to a kind of step piezoelectric rotating drivers twice, including pedestal, driving flexible hinge, piezoelectric stack, U-board, parallelogram flexible hinge a, parallelogram flexible hinge b, rotating platform, bearing, triangle microprotrusion, pedestal and mandrel；About the centrosymmetric parallelogram flexible hinge a of axle centerline, parallelogram flexible hinge a can be changed in b, normal pressure between the outer surface b and rotating platform, make parallelogram flexible hinge a about the centrosymmetric triangle microprotrusion of axle centerline, the outer surface b is different along the coefficient of friction of X-axis positively and negatively, under the two collective effect, electric signal motivates the extension/contraction deformation of piezoelectric stack, U-board is driven to move back and forth along X-axis forward direction/negative sense, within a duty cycle, parallelogram flexible hinge a, b driven rotating platform, realize the rotation twice in counter clockwise direction.
Description
Technical field
The present invention relates to a kind of step piezoelectric rotating drivers twice, belong to micro-nano precision actuation technical field.
Background technique
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.In existing big stroke, high-precision piezoelectric actuator, driving process can be usually divided into the piezoelectric stack elongation stage
With piezoelectric stack retraction stage, realized using the slow elongation of piezoelectric stack and snapback.In the process, pressure can only be passed through
Electricity stacks the elongation stage and realizes that driver rotates in the forward direction driving, and piezoelectric stack retraction stage can not be such that driver rotates in the forward direction,
Can even driver be made to retract, greatly reduce the delivery efficiency of driver.
Summary of the invention
In order to realize big stroke, it is high-precision improve the delivery efficiency of driver simultaneously, the present invention disclose it is a kind of twice
Step piezoelectric rotating driver.
The invention is realized by the following technical scheme:
A kind of step piezoelectric rotating driver twice, including it is pedestal, driving flexible hinge, piezoelectric stack, U-board, parallel
Quadrangle flexible hinge a, parallelogram flexible hinge b, rotating platform, bearing, triangle microprotrusion, pedestal and mandrel；
Sequentially rigidly connection is integrated for pedestal, driving flexible hinge and U-board, is fixed on the base by pedestal, piezoelectric stack close-fitting
Conjunction is mounted on inside driving flexible hinge, is provided with parallelogram flexible hinge a, b, parallel four side on the inside of two U-shaped arm of U-board
The outer surface shape flexible hinge a, b is machined with triangle microprotrusion, and triangle microprotrusion is in contact with rotating platform, rotating platform,
Bearing, mandrel are coupled on pedestal；U-shaped bottom angled from parallelogram flexible hinge a to U-board, about in mandrel
The outer surface parallelogram flexible hinge a, b and rotary flat can be changed in heart line centrosymmetric parallelogram flexible hinge a, b
Normal pressure between platform makes outside parallelogram flexible hinge a, b about the centrosymmetric triangle microprotrusion of axle centerline
Surface is different along X-axis coefficient of friction positively and negatively, under the two collective effect, electric signal motivate the elongation of piezoelectric stack/
Shorten deformation, U-board is driven to move back and forth along X-axis forward direction/negative sense, within a duty cycle, parallelogram flexible hinge
A, b driven rotating platform realizes the rotation twice in counter clockwise direction.
It is provided with tilt angle identical parallelogram flexible hinge a, b on the inside of two U-shaped arm of U-board, piezoelectric stack is stretched
When long, U-board is acted on along X-axis negative movement, the parallelogram outer surface flexible hinge b by the frictional force along X-axis positive direction,
Parallelogram flexible hinge b has the trend to X-axis positive direction deformation, and the normal pressure between rotating platform surface reduces,
The parallelogram outer surface flexible hinge a is had the trend to X-axis positive direction deformation by the frictional force along X-axis positive direction, with
Normal pressure between rotating platform surface increases, so that the friction between parallelogram flexible hinge a and rotating platform
Power is greater than the frictional force between parallelogram flexible hinge b and rotating platform, and rotating platform rotates counterclockwise；Work as piezoelectric stack
When shortening, frictional force is greater than parallelogram flexible hinge a and rotary flat between parallelogram flexible hinge b and rotating platform
Frictional force between platform, so that rotating platform continues rotation counterclockwise.
The triangle microprotrusion of non-centrosymmetry shape, and three are machined on the outer surface parallelogram flexible hinge a, b
The inclined direction of angular microprotrusion is consistent with the parallelogram flexible hinge inclined direction at place, makes the coefficient of friction for being inclined to side
Greater than the other side；The parallelogram outer surface flexible hinge a is greater than rubbing along X-axis negative direction along the coefficient of friction of X-axis positive direction
Wipe coefficient；The parallelogram outer surface flexible hinge b is greater than the friction system along X-axis positive direction along the coefficient of friction of X-axis negative direction
Number.
The beneficial effects of the present invention are: generating driver, twice within the one action period using a piezoelectric stack
Stepping improves the delivery efficiency of driver.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair
Bright illustrative example and its explanation is used to explain the present invention, and is not constituted improper limitations of the present invention.
Fig. 1 show overall structure diagram of the invention；
Fig. 2 show the working principle of the invention figure；
Fig. 3 show parallelogram flexible hinge a surface triangles microprotrusion enlarged drawing of the invention；
Fig. 4 show parallelogram flexible hinge b surface triangles microprotrusion enlarged drawing of the invention；
Specific embodiment
Detailed content and its specific embodiment of the invention are further illustrated with reference to the accompanying drawing.
Referring to FIG. 1 to FIG. 4, present embodiment provides a kind of specific embodiment party of step piezoelectric rotating driver twice
Case.A kind of step piezoelectric rotating driver twice within the one action period, makes to drive using a piezoelectric stack (3)
Device generates stepping twice；Structure includes pedestal (1), driving flexible hinge (2), piezoelectric stack (3), U-board (4), parallel four side
Shape flexible hinge a (5), parallelogram flexible hinge b (6), rotating platform (7), bearing (8), triangle microprotrusion (9), bottom
Seat (10) and mandrel (11)；Sequentially rigidity connection is integrated for pedestal (1), driving flexible hinge (2) and U-board (4), passes through base
Seat (1) is fixed on pedestal (10), and piezoelectric stack (3) tight fit is mounted on driving flexible hinge (2) inside, (4) two U of U-board
It is provided with parallelogram flexible hinge a (5), b (6) on the inside of shape arm, parallelogram flexible hinge a (5), b (6) outer surface add
Work has triangle microprotrusion (9), and triangle microprotrusion (9) is in contact with rotating platform (7), rotating platform (7), bearing (8), the heart
Axis (11) is coupled on pedestal (10)；U-shaped bottom angled from parallelogram flexible hinge a (5) to U-board (4), about
Parallelogram flexible hinge a can be changed in the centrosymmetric parallelogram flexible hinge a (5) of mandrel (11) center line, b (6)
(5), the normal pressure between (6) outer surface b and rotating platform (7), it is micro- about the centrosymmetric triangle of mandrel (11) center line
Raised (9) keep parallelogram flexible hinge a (5), (6) outer surface b different along the coefficient of friction of X-axis positively and negatively, two
Under person's collective effect, electric signal motivates the extension/contraction deformation of piezoelectric stack (3), drives U-board (4) along X-axis forward direction/negative sense
It moves back and forth, within a duty cycle, parallelogram flexible hinge a (5), b (6) driven rotating platform (7) are realized
Rotation twice in counter clockwise direction.
It is provided with the identical parallelogram flexible hinge a (5) of tilt angle, b (6) on the inside of (4) two U-shaped arm of U-board, is pressed
When electricity stacks (3) elongation, U-board (4) along X-axis negative movement, (6) outer surface parallelogram flexible hinge b by along X-axis just
The frictional force in direction acts on, and parallelogram flexible hinge b (6) has the trend to X-axis positive direction deformation, with rotating platform
(7) normal pressure between surface reduces, (5) outer surface parallelogram flexible hinge a by the frictional force along X-axis positive direction,
Increase with the normal pressure between the trend to X-axis positive direction deformation, with rotating platform (7) surface, so that parallel four side
Frictional force between shape flexible hinge a (5) and rotating platform (7) is greater than parallelogram flexible hinge b (6) and rotating platform
(7) frictional force between, rotating platform (7) rotate counterclockwise；When piezoelectric stack (3) shorten, parallelogram flexible hinge b
(6) frictional force is greater than the friction between parallelogram flexible hinge a (5) and rotating platform (7) between rotating platform (7)
Power, so that rotating platform (7) continues rotation counterclockwise.
The triangle microprotrusion of non-centrosymmetry shape is machined on parallelogram flexible hinge a (5), b (6) outer surface
(9), and the inclined direction of triangle microprotrusion (9) is consistent with the parallelogram flexible hinge inclined direction at place, makes to be inclined to
The coefficient of friction of side is greater than the other side；(5) outer surface parallelogram flexible hinge a is greater than along the coefficient of friction of X-axis positive direction
Along the coefficient of friction of X-axis negative direction；(6) outer surface parallelogram flexible hinge b is greater than edge along the coefficient of friction of X-axis negative direction
The coefficient of friction of X-axis positive direction.
Claims (3)
1. a kind of step piezoelectric rotating driver twice, it is characterised in that: using a piezoelectric stack within a duty cycle,
Driver is set to generate stepping twice；Structure includes pedestal (1), driving flexible hinge (2), piezoelectric stack (3), U-board (4), puts down
Row quadrangle flexible hinge a (5), parallelogram flexible hinge b (6), rotating platform (7), bearing (8), triangle microprotrusion
(9), pedestal (10) and mandrel (11)；Sequentially rigidity connection is integrated for pedestal (1), driving flexible hinge (2) and U-board (4),
It is fixed on pedestal (10) by pedestal (1), piezoelectric stack (3) tight fit is mounted on driving flexible hinge (2) inside, U-board
It is provided with parallelogram flexible hinge a (5), b (6) on the inside of (4) two U-shaped arms, parallelogram flexible hinge a (5), b (6) are outside
Surface is machined with triangle microprotrusion (9), and triangle microprotrusion (9) is in contact with rotating platform (7), rotating platform (7), bearing
(8), mandrel (11) is coupled on pedestal (10)；Parallelogram flexible hinge a (5) inclines to the U-shaped bottom of U-board (4)
Tiltedly, soft about the centrosymmetric parallelogram flexible hinge a (5) of mandrel (11) center line, the changeable parallelogram of b (6)
Normal pressure between property hinge a (5), (6) outer surface b and rotating platform (7), about mandrel (11) center line centrosymmetric three
Angular microprotrusion (9) make parallelogram flexible hinge a (5), (6) outer surface b along X-axis coefficient of friction positively and negatively not
Together, under the two collective effect, electric signal motivate piezoelectric stack (3) extension/contraction deformation, drive U-board (4) along X-axis just
To/negative sense reciprocating motion, within a duty cycle, parallelogram flexible hinge a (5), b (6) driven rotating platform
(7), the rotation twice in counter clockwise direction is realized.
2. a kind of step piezoelectric rotating driver twice according to claim 1, it is characterised in that: (4) two U-shaped of U-board
The identical parallelogram flexible hinge a (5) of tilt angle, b (6) are provided on the inside of arm, when piezoelectric stack (3) extends, U-board
(4) along X-axis negative movement, parallelogram flexible hinge a (5), (6) outer surface b are by the friction masterpiece along X-axis positive direction
With having to the positive pressure between the parallelogram flexible hinge b (6) and rotating platform (7) surface of X-axis positive direction deformation tendency
Power reduce, have between the row quadrangle flexible hinge a (5) and rotating platform (7) surface of X-axis positive direction deformation tendency just
Pressure increases, so that the frictional force between parallelogram flexible hinge a (5) and rotating platform (7) is greater than parallel four side
Frictional force between shape flexible hinge b (6) and rotating platform (7), rotating platform (7) rotate counterclockwise；When piezoelectric stack (3) contract
In short-term, frictional force is greater than parallelogram flexible hinge a (5) between parallelogram flexible hinge b (6) and rotating platform (7)
With the frictional force between rotating platform (7), rotated so that rotating platform (7) continuation is counterclockwise.
3. a kind of step piezoelectric rotating driver twice according to claim 1, it is characterised in that: soft in parallelogram
The triangle microprotrusion (9) of non-centrosymmetry shape, and triangle microprotrusion (9) are machined on property hinge a (5), b (6) outer surface
Inclined direction it is consistent with the parallelogram flexible hinge inclined direction at place, make be inclined to side coefficient of friction be greater than it is another
Side；(5) outer surface parallelogram flexible hinge a is greater than the friction system along X-axis negative direction along the coefficient of friction of X-axis positive direction
Number；(6) outer surface parallelogram flexible hinge b is greater than the friction system along X-axis positive direction along the coefficient of friction of X-axis negative direction
Number.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910090839.1A CN109889089B (en) | 2019-01-30 | 2019-01-30 | Twice stepping piezoelectric rotary driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910090839.1A CN109889089B (en) | 2019-01-30 | 2019-01-30 | Twice stepping piezoelectric rotary driver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109889089A true CN109889089A (en) | 2019-06-14 |
| CN109889089B CN109889089B (en) | 2023-09-01 |
Family
ID=66927403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910090839.1A Active CN109889089B (en) | 2019-01-30 | 2019-01-30 | Twice stepping piezoelectric rotary driver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109889089B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110160904A (en) * | 2019-06-24 | 2019-08-23 | 安徽理工大学 | A kind of combined type friction wear testing machine based on flexible hinge |
| CN111327227A (en) * | 2020-03-26 | 2020-06-23 | 天津职业技术师范大学(中国职业培训指导教师进修中心) | Piezoelectric linear actuator and control method |
| CN112713803A (en) * | 2020-12-11 | 2021-04-27 | 南京航空航天大学 | Macro-micro combined piezoelectric driving rotary actuator and working method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006074442A2 (en) * | 2005-01-07 | 2006-07-13 | Tibion Corporation | High-torque motor |
| CN104578901A (en) * | 2015-01-15 | 2015-04-29 | 合肥工业大学 | Walking piezoelectric rotary motor |
| US20180342967A1 (en) * | 2017-05-25 | 2018-11-29 | Konica Minolta, Inc. | Rotating motion control apparatus, image forming apparatus and method for rotating motion control |
-
2019
- 2019-01-30 CN CN201910090839.1A patent/CN109889089B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006074442A2 (en) * | 2005-01-07 | 2006-07-13 | Tibion Corporation | High-torque motor |
| CN104578901A (en) * | 2015-01-15 | 2015-04-29 | 合肥工业大学 | Walking piezoelectric rotary motor |
| US20180342967A1 (en) * | 2017-05-25 | 2018-11-29 | Konica Minolta, Inc. | Rotating motion control apparatus, image forming apparatus and method for rotating motion control |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110160904A (en) * | 2019-06-24 | 2019-08-23 | 安徽理工大学 | A kind of combined type friction wear testing machine based on flexible hinge |
| CN111327227A (en) * | 2020-03-26 | 2020-06-23 | 天津职业技术师范大学(中国职业培训指导教师进修中心) | Piezoelectric linear actuator and control method |
| CN112713803A (en) * | 2020-12-11 | 2021-04-27 | 南京航空航天大学 | Macro-micro combined piezoelectric driving rotary actuator and working method thereof |
| CN112713803B (en) * | 2020-12-11 | 2021-11-05 | 南京航空航天大学 | Macro-micro combined piezoelectric driving rotary actuator and working method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109889089B (en) | 2023-09-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109889089A (en) | A kind of step piezoelectric rotating driver twice | |
| CN1027667C (en) | Piezoelectric actuator | |
| CN108233764B (en) | Piezoelectric driving type precise rotation driving device adopting special-shaped hinge transmission mechanism | |
| CN107947629B (en) | Double piezoelectric stack driving type precise rotation driving device | |
| CN209402438U (en) | A kind of step piezoelectric rotating driver twice | |
| CN109586611A (en) | A kind of alternating step piezoelectric stick-slip driver with anisotropy friction surface | |
| CN109586612B (en) | Alternate stepping piezoelectric stick-slip driver with bionic wheat-awn friction surface | |
| CN106817046B (en) | A kind of rotating driver based on piezoelectric fabric | |
| CN109768733A (en) | A kind of rotation piezoelectric rotary driver twice | |
| CN109889086A (en) | A kind of Three Degree Of Freedom Piezoelectric Driving Micro and nano manipulation mechanical arm and its motivational techniques | |
| CN108023500A (en) | The piezo-electric type precision linear driving device of exportable forward and reverse bidirectional-movement | |
| CN105827144A (en) | Oblique-trapezoid orthogonal driving type piezoelectric stick-slip linear motor and compound excitation method thereof | |
| CN110995058A (en) | Novel piezoelectric rotation precision driving platform based on parasitic inertia principle | |
| CN107171589B (en) | A kind of cymbal type two-freedom piezoelectric actuator and the motivational techniques for the two-freedom movement realized using the driver | |
| CN108712104A (en) | A kind of parasitic type piezoelectricity stick-slip driver | |
| CN105827147B (en) | A kind of inertial piezoelectric motor | |
| CN209313746U (en) | A kind of alternating step piezoelectric stick-slip driver with anisotropy friction surface | |
| CN110855181B (en) | Rotary piezoelectric driving device based on asymmetric triangular hinge mechanism | |
| CN110912448B (en) | Piezoelectric driving platform based on asymmetric triangle flexible hinge mechanism | |
| CN209402437U (en) | A kind of rotation piezoelectric rotary driver twice | |
| CN208597034U (en) | Arcuate structure hinge inhibits the device of parasitic piezoelectric actuator rollback movement | |
| CN106712571A (en) | Linear driver based on piezoelectric fiber based on piezoelectric fiber | |
| CN206628996U (en) | A kind of rotating driver based on piezoelectric fabric | |
| CN109951101A (en) | The ultraprecise four-degree-of-freedom positioning pose_adjuster and its motivational techniques of Piezoelectric Driving | |
| CN208548841U (en) | A kind of parasitic type piezoelectricity stick-slip driver |
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 |