CN105577026A - Piezoelectric driven release mechanism - Google Patents
Piezoelectric driven release mechanism Download PDFInfo
- Publication number
- CN105577026A CN105577026A CN201610012884.1A CN201610012884A CN105577026A CN 105577026 A CN105577026 A CN 105577026A CN 201610012884 A CN201610012884 A CN 201610012884A CN 105577026 A CN105577026 A CN 105577026A
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- China
- Prior art keywords
- piezoelectric actuator
- slowly
- sleeve
- rope
- reel
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- 230000007246 mechanism Effects 0.000 title claims abstract description 39
- 239000011159 matrix material Substances 0.000 claims description 14
- 241000168254 Siro Species 0.000 claims description 9
- 238000009987 spinning Methods 0.000 claims description 9
- 239000000919 ceramic Substances 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 6
- 238000004804 winding Methods 0.000 abstract 3
- 238000009434 installation Methods 0.000 abstract 2
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/10—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing rotary motion, e.g. rotary motors
- H02N2/14—Drive circuits; Control arrangements or methods
Landscapes
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
A piezoelectric driven release mechanism relates to the technical field of a fold and unfold mechanism. The invention aims to solve the problems that the stability of a traditional space fold and unfold mechanism during the unfolding process is poor and cannot be folded and unfolded for many times. A piezoelectric driver, a winding wheel and a sleeve are all arranged on a base, a pulley is arranged at the bottom of the sleeve, arranged on a rope and used for changing the direction of the rope, a conical spring is arranged inside the sleeve, the bottom end of the conical spring is connected with the bottom of the sleeve, the top end of the conical spring is connected with a released object installation platform, one end of the rope is fixed on the winding wheel, the other end of the rope passes through the conical spring to be fixed on the released object installation platform, and the side surface of a driving foot of the piezoelectric driver is in close connection with the circumferential surface of the winding wheel. The release mechanism can be applied to the field of fabrication of the fold and unfold mechanism.
Description
Technical field
The present invention relates to a kind of slowly-releasing mechanism adopting Piezoelectric Driving, relate to folding exhibition mechanism technology field.
Background technology
Zhe Zhan mechanism belongs to engineering machinery and aerospace field a kind of mechanism the most conventional, generally should have that structure is simple, folding exhibition is than the advantage such as large.Such as, all can use a large amount of Zhe Zhan mechanisms in a lot of spacecraft: when Spacecraft Launch, mechanism is in retracted state, effectively reduce the size of spacecraft; After spacecraft injection, mechanism deploying, starts normally to work.In various types of Zhe Zhan mechanism, adopting the elastic performance of flexible member to complete mechanism deploying is a kind of conventional mode; But there is impulsive force in the unexpected dispose procedure of elastic force, is unfavorable for Stability Analysis of Structures work; In addition, this mode realizing mechanism deploying based on flexible member generally can only complete One step development, cannot regain.
Summary of the invention
There is expansion process poor stability to solve existing space Zhe Zhan mechanism in the present invention, repeatedly cannot roll over the problem of exhibition.The slowly-releasing mechanism adopting Piezoelectric Driving is now provided.
Adopt the slowly-releasing mechanism of Piezoelectric Driving, it comprises base, piezoelectric actuator, reel, sleeve, pulley, rope, volute spring and by slowly-releasing thing mounting platform,
Piezoelectric actuator, reel and sleeve are installed on base, and pulley is arranged on the bottom of sleeve, and pulley is arranged on rope, for changing the direction of rope;
Volute spring is arranged on the inside of sleeve, and the bottom of volute spring is connected with sleeve bottom, and the top of volute spring is connected with by slowly-releasing thing mounting platform,
One end of rope is fixed on reel, and the other end of rope is fixed on by slowly-releasing thing mounting platform through volute spring,
The driving foot side of piezoelectric actuator and reel outer circumference surface compact siro spinning technology.
Beneficial effect of the present invention is: the piezoelectric actuator in the present invention adopts the working method of vibration compound, drive foot along elliptical orbit forward or reverse movement, drive the side of foot to contact with reel, thus drive forward or the counter-rotating of reel, thus tension or release rope.Under the effect of rope stretch, volute spring is in compressive state always, and when rope is released, by slowly-releasing thing platform by outwards movement, when rope is wound, being released thing will be pulled by rope, and the elastic force overcoming spring moves inward.By regulating voltage or the frequency of piezoelectric actuator, the speeds control to release or withdrawal can be realized, when power-off, between the driving foot of piezoelectric actuator and reel, there is frictional force, can self-locking be realized.
Piezoelectric actuator torque density is high, advantage without the need to slowing down to adopt the slowly-releasing mechanism of Piezoelectric Driving make use of, and can realize slow releasing and the withdrawal of Zhe Zhan mechanism, and can realize repeatedly rolling over exhibition; In addition, the characteristic that piezoelectric actuator cuts off self-lock can simplify the structure of Zhe Zhan mechanism greatly.Stability improves more than 8 times compared with existing space Zhe Zhan mechanism.
Accompanying drawing explanation
Fig. 1 is the perspective view of the slowly-releasing mechanism of the employing Piezoelectric Driving described in embodiment one;
Fig. 2 is along sleeve axis structure division cutaway view in Fig. 1.
Embodiment
Embodiment one: see figures.1.and.2 and illustrate present embodiment, the slowly-releasing mechanism of the employing Piezoelectric Driving described in present embodiment, it comprises base 1, piezoelectric actuator 2, reel 3, sleeve 4, pulley 5, rope 6, volute spring 7 and by slowly-releasing thing mounting platform 8
Piezoelectric actuator 2, reel 3 and sleeve 4 are installed on base 1, and pulley 5 is arranged on the bottom of sleeve 4, and pulley 5 is arranged on rope 6, for changing the direction of rope 6;
Volute spring 7 is arranged on the inside of sleeve 4, and the bottom of volute spring 7 is connected with sleeve bottom 4, and the top of volute spring 7 is connected with by slowly-releasing thing mounting platform 8,
One end of rope 6 is fixed on reel 3, and the other end of rope 6 is fixed on by slowly-releasing thing mounting platform 8 through volute spring 7,
The driving foot side of piezoelectric actuator 2 and reel 3 outer circumference surface compact siro spinning technology.
In present embodiment, adopt the slowly-releasing mechanism of Piezoelectric Driving when application, piezoelectric actuator 2 only needs two-phase AC signal to encourage, and by changing the phase difference of two-phase, can realize the commutation of motion.
Embodiment two: present embodiment is described further the slowly-releasing mechanism of the employing Piezoelectric Driving described in embodiment one, in present embodiment, piezoelectric actuator 2 is the elastic composites combined by metallic matrix and piezoelectric ceramic piece, piezoelectric actuator 2 is fixedly connected with base 1 by metallic matrix
Can produce elliptic vibrations on the sufficient surface of driving when piezoelectric actuator 2 works, piezoelectric actuator 2 is fixedly connected with base 1 by metallic matrix.
In present embodiment, piezoelectric actuator 2 adopts the working method of vibration compound, and piezoelectric actuator 2 is sandwich type structural or SMD structure, produces elliptical orbit, and be fixed on base 1 by metallic matrix during work on driving foot surface.Piezoelectric actuator can encourage by two-phase AC signal, by changing the phase difference of two-phase, can realize the commutation of motion.
Embodiment three: present embodiment is described further the slowly-releasing mechanism of the employing Piezoelectric Driving described in embodiment one, in present embodiment, the driving of piezoelectric actuator 2 foot side can with one of four positions, upper and lower, left and right of reel 3 compact siro spinning technology.
In present embodiment, the driving foot contacts side surfaces of reel 3 and piezoelectric actuator 2, the position of piezoelectric actuator 2 can at the four direction up and down of reel 3 axis, its particular location, can require adjustment according to real space.
Embodiment four: the slowly-releasing mechanism of the employing Piezoelectric Driving described in present embodiment, it comprises base 1, piezoelectric actuator 2, reel 3, sleeve 4, rope 6, volute spring 7 and by slowly-releasing thing mounting platform 8,
Piezoelectric actuator 2, reel 3 and sleeve 4 are installed on base 1, and reel 3 and piezoelectric actuator 2 are all positioned at the bottom of sleeve 4,
Volute spring 7 is arranged on the inside of sleeve 4, and the bottom of volute spring 7 is connected with sleeve bottom 4, and the top of volute spring 7 is connected with by slowly-releasing thing mounting platform 8,
One end of rope 6 is fixed on reel 3, and the other end of rope 6 is fixed on by slowly-releasing thing mounting platform 8 through volute spring 7,
The driving foot side of piezoelectric actuator 2 and reel 3 outer circumference surface compact siro spinning technology.
In present embodiment, adopt the slowly-releasing mechanism of Piezoelectric Driving when application, piezoelectric actuator 2 only needs two-phase AC signal to encourage, and by changing the phase difference of two-phase, can realize the commutation of motion.
Owing to being arranged on bottom sleeve 5, rope 6 is in line, and two ends connect reel 3 respectively and by slowly-releasing thing mounting platform 8, eliminate pulley 5.
Embodiment five: present embodiment is described further the slowly-releasing mechanism of the employing Piezoelectric Driving described in embodiment four, in present embodiment, piezoelectric actuator 2 is the elastic composites combined by metallic matrix and piezoelectric ceramic piece, piezoelectric actuator 2 is fixedly connected with base 1 by metallic matrix
Can produce elliptic vibrations on the sufficient surface of driving when piezoelectric actuator 2 works, piezoelectric actuator 2 is fixedly connected with base 1 by metallic matrix.
In present embodiment, piezoelectric actuator 2 adopts the working method of vibration compound, and piezoelectric actuator 2 is sandwich type structural or SMD structure, produces elliptical orbit, and be fixed on base 1 by metallic matrix during work on driving foot surface.Piezoelectric actuator can encourage by two-phase AC signal, by changing the phase difference of two-phase, can realize the commutation of motion.
Embodiment six: present embodiment is described further the slowly-releasing mechanism of the employing Piezoelectric Driving described in embodiment four, in present embodiment, the driving of piezoelectric actuator 2 foot side can with one of four positions, upper and lower, left and right of reel 3 compact siro spinning technology.
Claims (6)
1. adopt the slowly-releasing mechanism of Piezoelectric Driving, it is characterized in that, it comprises base (1), piezoelectric actuator (2), reel (3), sleeve (4), pulley (5), rope (6), volute spring (7) and by slowly-releasing thing mounting platform (8)
Piezoelectric actuator (2), reel (3) and sleeve (4) are installed on base (1), pulley (5) is arranged on the bottom of sleeve (4), and pulley (5) is arranged on rope (6), for changing the direction of rope (6);
Volute spring (7) is arranged on the inside of sleeve (4), the bottom of volute spring (7) is connected with sleeve bottom (4), the top of volute spring (7) is connected with by slowly-releasing thing mounting platform (8)
One end of rope (6) is fixed on reel (3), and the other end of rope (6) is fixed on by slowly-releasing thing mounting platform (8) through volute spring (7),
The driving foot side of piezoelectric actuator (2) and reel (3) outer circumference surface compact siro spinning technology.
2. the slowly-releasing mechanism of employing Piezoelectric Driving according to claim 1, it is characterized in that, piezoelectric actuator (2) is the elastic composites combined by metallic matrix and piezoelectric ceramic piece, piezoelectric actuator (2) is fixedly connected with base (1) by metallic matrix
Can produce elliptic vibrations on the sufficient surface of driving during piezoelectric actuator (2) work, piezoelectric actuator (2) is fixedly connected with base (1) by metallic matrix.
3. the slowly-releasing mechanism of employing Piezoelectric Driving according to claim 1, is characterized in that, the driving of piezoelectric actuator (2) foot side can with one of four positions, upper and lower, left and right of reel (3) compact siro spinning technology.
4. adopt the slowly-releasing mechanism of Piezoelectric Driving, it is characterized in that, it comprises base (1), piezoelectric actuator (2), reel (3), sleeve (4), rope (6), volute spring (7) and by slowly-releasing thing mounting platform (8)
Piezoelectric actuator (2), reel (3) and sleeve (4) are installed on base (1), and reel (3) and piezoelectric actuator (2) are all positioned at the bottom of sleeve (4)
Volute spring (7) is arranged on the inside of sleeve (4), the bottom of volute spring (7) is connected with sleeve bottom (4), the top of volute spring (7) is connected with by slowly-releasing thing mounting platform (8)
One end of rope (6) is fixed on reel (3), and the other end of rope (6) is fixed on by slowly-releasing thing mounting platform (8) through volute spring (7),
The driving foot side of piezoelectric actuator (2) and reel (3) outer circumference surface compact siro spinning technology.
5. the slowly-releasing mechanism of employing Piezoelectric Driving according to claim 4, it is characterized in that, piezoelectric actuator (2) is the elastic composites combined by metallic matrix and piezoelectric ceramic piece, piezoelectric actuator (2) is fixedly connected with base (1) by metallic matrix
Can produce elliptic vibrations on the sufficient surface of driving during piezoelectric actuator (2) work, piezoelectric actuator (2) is fixedly connected with base (1) by metallic matrix.
6. the slowly-releasing mechanism of employing Piezoelectric Driving according to claim 4, is characterized in that, the driving of piezoelectric actuator (2) foot side can with one of four positions, upper and lower, left and right of reel (3) compact siro spinning technology.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610012884.1A CN105577026A (en) | 2016-01-08 | 2016-01-08 | Piezoelectric driven release mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610012884.1A CN105577026A (en) | 2016-01-08 | 2016-01-08 | Piezoelectric driven release mechanism |
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| CN105577026A true CN105577026A (en) | 2016-05-11 |
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| CN201610012884.1A Pending CN105577026A (en) | 2016-01-08 | 2016-01-08 | Piezoelectric driven release mechanism |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112099543A (en) * | 2020-08-14 | 2020-12-18 | 华南理工大学 | Vibration control device and control method for moving two-dimensional multi-unfolding plate |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2059157U (en) * | 1989-12-16 | 1990-07-11 | 昆明钢铁公司 | Brake locking device for crane |
| CN1242645A (en) * | 1998-07-22 | 2000-01-26 | 南京航空航天大学 | Rotary type travelling wave ultrasonic motor, apparatus for driving curtain to be opened or closed using same |
| CN101090244A (en) * | 2007-04-30 | 2007-12-19 | 哈尔滨工业大学 | Plane multi-freedom altrasonic electric machine of single vibrator longtitude bend sandwich changer type |
| CN101257265A (en) * | 2007-03-01 | 2008-09-03 | 精工爱普生株式会社 | Piezoelectric drive device and electronic device |
| CN203896271U (en) * | 2014-06-17 | 2014-10-22 | 保定美光电子科技有限公司 | Rotatable solar support |
-
2016
- 2016-01-08 CN CN201610012884.1A patent/CN105577026A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2059157U (en) * | 1989-12-16 | 1990-07-11 | 昆明钢铁公司 | Brake locking device for crane |
| CN1242645A (en) * | 1998-07-22 | 2000-01-26 | 南京航空航天大学 | Rotary type travelling wave ultrasonic motor, apparatus for driving curtain to be opened or closed using same |
| CN101257265A (en) * | 2007-03-01 | 2008-09-03 | 精工爱普生株式会社 | Piezoelectric drive device and electronic device |
| CN101090244A (en) * | 2007-04-30 | 2007-12-19 | 哈尔滨工业大学 | Plane multi-freedom altrasonic electric machine of single vibrator longtitude bend sandwich changer type |
| CN203896271U (en) * | 2014-06-17 | 2014-10-22 | 保定美光电子科技有限公司 | Rotatable solar support |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112099543A (en) * | 2020-08-14 | 2020-12-18 | 华南理工大学 | Vibration control device and control method for moving two-dimensional multi-unfolding plate |
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Application publication date: 20160511 |