CN103746597A - Paster T-shaped dual-feet linear piezoelectric supersonic motor vibrator - Google Patents
Paster T-shaped dual-feet linear piezoelectric supersonic motor vibrator Download PDFInfo
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- CN103746597A CN103746597A CN201410039771.1A CN201410039771A CN103746597A CN 103746597 A CN103746597 A CN 103746597A CN 201410039771 A CN201410039771 A CN 201410039771A CN 103746597 A CN103746597 A CN 103746597A
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- 239000000919 ceramic Substances 0.000 claims abstract description 28
- 230000010287 polarization Effects 0.000 claims abstract description 4
- 239000011159 matrix material Substances 0.000 claims description 9
- 230000008878 coupling Effects 0.000 abstract description 10
- 238000010168 coupling process Methods 0.000 abstract description 10
- 238000005859 coupling reaction Methods 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 230000005284 excitation Effects 0.000 description 9
- 239000002245 particle Substances 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000003213 activating effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000000806 elastomer Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 206010049214 Monopodia Diseases 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002905 metal composite material Substances 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
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Abstract
A paster T-shaped dual-feet linear piezoelectric supersonic motor vibrator belongs to the technical field of piezoelectric supersonic motors and aims to solve the problems of idled and wasted vibration energy, a complex driving method and vibration coupling existing in the existing T-shaped linear supersonic motor vibrator. According to the paster T-shaped dual-feet linear piezoelectric supersonic motor vibrator, a small end surface of a longitudinal beam is vertically fixed on one surface of a crossbeam; the longitudinal beam and the crossbeam form a T-shaped structure; variable amplitude rods are arranged at two ends of the crossbeam; the large ends of the variable amplitude rods are fixedly connected with the crossbeam; two piezoelectric ceramic pieces are respectively fixed on the upper end surface and the lower end surface of the crossbeam; the two piezoelectric ceramic pieces are polarized along the thickness direction and the polarization directions of the two piezoelectric pieces are opposite. The variable amplitude rods at two sides are used for actuating output without the problem of the idled and wasted energy. The vibration coupling problem is avoided due to the longitudinal vibration of one crossbeam, so the motor performances are improved. The paster T-shaped dual-feet linear piezoelectric supersonic motor vibrator is suitable for manufacturing a miniaturized piezoelectric supersonic motor.
Description
Technical field
The invention belongs to piezoelectric ultrasonic motor technical field.
Background technology
Piezoelectric ultrasonic motor is a kind of inverse piezoelectric effect of utilizing piezoelectric ceramic, in elastomer, motivate the vibration in supersonic range, at surface of elastomer specified point or specific region, form the particle movement with particular track, and then the coupling of the friction by between stator, rotor converts the microscopic motion of particle to the macroscopic motion of rotor, there is simple in structure, flexible design, low speed high torque/thrust, power/torque density is high, positioning precision is high, fast response time, cut off self-lock, without electromagnetic interference and be not subject to the advantages such as electromagnetic interference.
Publication number is that CN101630924, denomination of invention are in the patent application of " T-shaped linear ultrasonic motor oscillator ", a kind of T-shaped monopodia linear piezoelectric ultrasonic motor oscillator has been proposed first, adopt horizontal sandwich converter and vertically sandwich converter extensional vibration compound realized the efficient excitation that drives the elliptical orbit vibration of foot place, have advantages of that mechanical-electric coupling efficiency is high, can realize high thrust output, stable performance, be easy to control, can producing in serial form; But not for activating output, there is the idle waste problem of vibrational energy in the vibrational energy at its three rear end cap places; In addition, this motor need to adopt two-phase alternating current to compress into row energization, vertically transducer is for realizing the excitation that drives the vertical direction vibration of foot place, horizontal transducer is for realizing the excitation that drives the horizontal direction vibration of foot place, motivational techniques are comparatively complicated, driving power is also comparatively complicated, the raw bending vibration of obvious coupling vertically all producing on transducer and horizontal transducer, and vibration coupling phenomenon is fairly obvious.
Summary of the invention
The present invention is in order to solve the idle waste of the vibrational energy existing in existing T-shaped linear ultrasonic motor oscillator, driving method complexity and to have the problem of vibration coupling, SMD T-shaped double-pin linear piezoelectric ultrasonic motor oscillator being now provided.
SMD T-shaped double-pin linear piezoelectric ultrasonic motor oscillator, it comprises matrix and two piezoelectric ceramic pieces;
Described matrix comprises: longeron, crossbeam and two ultrasonic transformers;
Described crossbeam be shaped as cuboid;
Described ultrasonic transformer is the block that cross section diminishes gradually,
One end of longeron is vertically fixed on a side of crossbeam, makes longitudinal and cross beam form T-shaped structure;
The two ends of described crossbeam are respectively equipped with ultrasonic transformer, and the large end of ultrasonic transformer is fixedly connected with crossbeam;
Two piezoelectric ceramic pieces are separately fixed on the upper and lower surface of crossbeam;
The equal through-thickness polarization of described two piezoelectric ceramic pieces, and the polarised direction of two piezoelectric ceramic pieces is contrary.
Above-mentioned matrix is integral type structure.
The shape of above-mentioned two piezoelectric ceramic pieces is identical, and the area of the cross section of described piezoelectric ceramic piece is less than or equal to the area of this piezoelectric ceramic piece place beam surface.
SMD T-shaped double-pin linear piezoelectric ultrasonic motor oscillator of the present invention, during work, only adopt single phase alternating current (A.C.) voltage signal to encourage, motivational techniques are very simple, realize the excitation of the extensional vibration of piezoelectricity metal composite beam by the stretching vibration of piezoelectric ceramic piece; During real work, the lower end of longeron is fixedly connected with outside pedestal, and this makes the vibration shape (referring to Fig. 2) of the extensional vibration of composite beam in the oscillator in the present invention produce obvious variation with respect to the free beam extensional vibration vibration shape (referring to Fig. 3).For free beam extensional vibration, the vibration displacement of ultrasonic transformer end is along beam axis direction; And for the extensional vibration of composite beam in the oscillator in the present invention, because longeron has adopted fixing boundary condition, the vibration displacement of ultrasonic transformer end not only has axial component, there is cross stream component simultaneously; The cross stream component of ultrasonic transformer end can be realized rectilinear motion output for promoting mover, and axial component is used for the precompression between customer service mover and oscillator, referring to Fig. 4.SMD T-shaped double-pin linear piezoelectric ultrasonic motor oscillator of the present invention, both sides ultrasonic transformer may be used to activate output, and capacity usage ratio is high, does not have the idle waste problem of vibrational energy; In addition, only adopt the extensional vibration of a crossbeam to realize the excitation of ultrasonic transformer end oblique line track vibration, do not have vibration coupling problem, be conducive to put forward high-octane conversion efficiency, also make structure obtain simplification to a great extent, process and assemble is also very simple; Ultrasonic transformer adopts variable cross-section design can play the effect of amassing wealth by heavy taxation of vibrational energy, can improve the amplitude and the vibration velocity that drive the surperficial particle of foot, and motor performance is improved.
SMD T-shaped double-pin linear piezoelectric ultrasonic motor oscillator of the present invention, both sides ultrasonic transformer can both be used for activating output, and capacity usage ratio is high, does not have the idle waste problem of vibrational energy; In addition, the present invention only adopts the extensional vibration of a crossbeam to realize the excitation of ultrasonic transformer end oblique line track vibration, does not have vibration coupling problem, is conducive to put forward high-octane conversion efficiency, also make structure obtain simplification to a great extent, process and assemble is also very simple; Ultrasonic transformer adopts variable cross-section design can play the effect of amassing wealth by heavy taxation of vibrational energy, can improve the amplitude and the vibration velocity that drive the surperficial particle of foot, and motor performance is improved.In addition, adopt paster structure design to make ultrasonic motor oscillator processing and assembling of the present invention very simple, be applicable to the making of microminiature piezoelectric ultrasonic motor.
SMD T-shaped double-pin linear piezoelectric ultrasonic motor oscillator of the present invention, by adopting the method for fixed boundary condition to realize single longitudinal vibration transducer bilateral, drive the function of sufficient linear actuation output, simple in structure, process and assemble is very easy, motivational techniques are simple, capacity usage ratio is high, and is easy to realize microminiaturized and integrated.
Accompanying drawing explanation
Fig. 1 is the perspective view of SMD T-shaped double-pin linear piezoelectric ultrasonic motor oscillator of the present invention;
Fig. 2 is SMD T-shaped double-pin linear piezoelectric ultrasonic motor oscillator of the present invention when work, the bending vibation mode picture of the mode of oscillation utilizing;
Fig. 3 is the bending vibation mode picture of free boundary condition lower piezoelectric transducer extensional vibration mode;
Fig. 4 drives mover to realize straight-line operation principle schematic diagram while being the work of oscillator shown in Fig. 1, and in figure, lateral arrows represents that along continuous straight runs applies precompression, and longitudinally arrow represents that mover vertically moves.
Embodiment
Embodiment one: with reference to Fig. 1, illustrate present embodiment, the SMD T-shaped double-pin linear piezoelectric ultrasonic motor oscillator described in present embodiment, it comprises matrix 1 and two piezoelectric ceramic pieces 2;
Described matrix 1 comprises: longeron 1-1, crossbeam 1-2 and two ultrasonic transformer 1-3;
Described crossbeam 1-2 is shaped as cuboid;
Described ultrasonic transformer 1-3 is the block that cross section diminishes gradually,
One end of longeron 1-1 is vertically fixed on a side of crossbeam 1-2, makes longeron 1-1 and crossbeam 1-2 form T-shaped structure;
The two ends of described crossbeam 1-2 are respectively equipped with ultrasonic transformer 1-3, and the large end of ultrasonic transformer 1-3 is fixedly connected with crossbeam 1-2;
Two piezoelectric ceramic pieces 2 are separately fixed on the upper and lower surface of crossbeam 1-2;
The equal through-thickness polarization of described two piezoelectric ceramic pieces 2, and the polarised direction of two piezoelectric ceramic pieces 2 is contrary.
The SMD T-shaped double-pin linear piezoelectric ultrasonic motor oscillator of present embodiment is in application, and crossbeam 1-2 is connected with the common port of driving power, and the outer surface of two piezoelectric ceramic pieces 2 is all connected with driving signal.
In present embodiment, only adopted two piezoelectric ceramic pieces 2, adopted the excitation of single phase alternating current (A.C.) signal can realize the extensional vibration of crossbeam, and then realized the excitation of ultrasonic transformer end oblique line track vibration, type of drive is simple and do not have a vibration coupling problem.
Embodiment two: present embodiment is that the SMD T-shaped double-pin linear piezoelectric ultrasonic motor oscillator described in embodiment one is described further, and in present embodiment, described matrix 1 is integral type structure.
In present embodiment, described longeron 1-1, crossbeam 1-2 and two ultrasonic transformer 1-3 are integrated part, can simplify like this processing and assembly technology.
Embodiment three: present embodiment is that the SMD T-shaped double-pin linear piezoelectric ultrasonic motor oscillator described in embodiment one or two is described further, in present embodiment, the shape of described two piezoelectric ceramic pieces 2 is identical, and the area of the cross section of described piezoelectric ceramic piece 2 is less than or equal to the area on these piezoelectric ceramic piece 2 crossbeam 1-2 surfaces, place.
In present embodiment, described piezoelectric ceramic piece 2, for cross-sectional area is less than or equal to the block of crossbeam 1-2 cross-sectional area, is conducive to the efficient excitation of extensional vibration like this.
Claims (3)
1. SMD T-shaped double-pin linear piezoelectric ultrasonic motor oscillator, is characterized in that, it comprises matrix (1) and two piezoelectric ceramic pieces (2);
Described matrix (1) comprising: longeron (1-1), crossbeam (1-2) and two ultrasonic transformers (1-3);
Described crossbeam (1-2) be shaped as cuboid;
The block that described ultrasonic transformer (1-3) diminishes gradually for cross section,
One end of longeron (1-1) is vertically fixed on a side of crossbeam (1-2), makes longeron (1-1) and crossbeam (1-2) form T-shaped structure;
The two ends of described crossbeam (1-2) are respectively equipped with ultrasonic transformer (1-3), and the large end of ultrasonic transformer (1-3) is fixedly connected with crossbeam (1-2);
Two piezoelectric ceramic pieces (2) are separately fixed on the upper and lower surface of crossbeam (1-2);
All through-thickness polarization of described two piezoelectric ceramic pieces (2), and the polarised direction of two piezoelectric ceramic pieces (2) is contrary.
2. SMD T-shaped double-pin linear piezoelectric ultrasonic motor oscillator according to claim 1, is characterized in that, described matrix (1) is integral type structure.
3. SMD T-shaped double-pin linear piezoelectric ultrasonic motor oscillator according to claim 1 and 2, it is characterized in that, the shape of described two piezoelectric ceramic pieces (2) is identical, and the area of the cross section of described piezoelectric ceramic piece (2) is less than or equal to the area on this piezoelectric ceramic piece (2) place crossbeam (1-2) surface.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410039771.1A CN103746597B (en) | 2014-01-27 | 2014-01-27 | SMD T-shaped dual-feet linear piezoelectric supersonic motor vibrator |
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| CN201410039771.1A CN103746597B (en) | 2014-01-27 | 2014-01-27 | SMD T-shaped dual-feet linear piezoelectric supersonic motor vibrator |
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| CN103746597B CN103746597B (en) | 2017-03-01 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105141174A (en) * | 2015-09-07 | 2015-12-09 | 南京航空航天大学 | Patch type stationary wave rotary-type piezoelectric actuator |
| CN105587599A (en) * | 2015-05-08 | 2016-05-18 | 长春工业大学 | Longitudinal vibration patch type passive jet propulsion device and driving method thereof |
| CN105587625A (en) * | 2015-05-08 | 2016-05-18 | 长春工业大学 | Surface mount sandwich type longitudinal bending complex excitation active water spraying propulsion device and driving method thereof |
| CN105587617A (en) * | 2015-05-08 | 2016-05-18 | 长春工业大学 | Longitudinal vibration surface mount type active water spraying propulsion device and driving method thereof |
| CN106505907A (en) * | 2017-01-05 | 2017-03-15 | 南京工程学院 | A kind of can two-way linear operation single-phase supersonic motor |
| CN106956284A (en) * | 2017-04-28 | 2017-07-18 | 南京航空航天大学 | A kind of deep-sea full open model mechanical finger structure and its working method |
| CN109013259A (en) * | 2018-08-09 | 2018-12-18 | 中南大学 | A kind of Large Amplitude Vibration amplitude transformer for ultrasonic vibration at high speed secondary process |
| CN109067238A (en) * | 2018-08-02 | 2018-12-21 | 哈尔滨工程大学 | A kind of patch type four-footed piezoelectric actuation mechanism |
| CN113595439A (en) * | 2020-04-30 | 2021-11-02 | 华侨大学 | Circular patch type double-foot linear ultrasonic motor and stator thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08182355A (en) * | 1994-12-26 | 1996-07-12 | Canon Inc | Vibration actuator |
| US20110175489A1 (en) * | 2008-06-02 | 2011-07-21 | Physik Instrumemte (PI) GmbH & Co. KF | Ultrasonic actuator |
| CN102361412A (en) * | 2011-10-18 | 2012-02-22 | 哈尔滨工业大学 | Patch type rectangular four-foot linear ultrasonic motor vibrator |
| CN102437783A (en) * | 2011-12-22 | 2012-05-02 | 哈尔滨工业大学 | Surface mount type I-shaped four-footed linear ultrasonic motor vibrator |
-
2014
- 2014-01-27 CN CN201410039771.1A patent/CN103746597B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08182355A (en) * | 1994-12-26 | 1996-07-12 | Canon Inc | Vibration actuator |
| US20110175489A1 (en) * | 2008-06-02 | 2011-07-21 | Physik Instrumemte (PI) GmbH & Co. KF | Ultrasonic actuator |
| CN102361412A (en) * | 2011-10-18 | 2012-02-22 | 哈尔滨工业大学 | Patch type rectangular four-foot linear ultrasonic motor vibrator |
| CN102437783A (en) * | 2011-12-22 | 2012-05-02 | 哈尔滨工业大学 | Surface mount type I-shaped four-footed linear ultrasonic motor vibrator |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105587599A (en) * | 2015-05-08 | 2016-05-18 | 长春工业大学 | Longitudinal vibration patch type passive jet propulsion device and driving method thereof |
| CN105587625A (en) * | 2015-05-08 | 2016-05-18 | 长春工业大学 | Surface mount sandwich type longitudinal bending complex excitation active water spraying propulsion device and driving method thereof |
| CN105587617A (en) * | 2015-05-08 | 2016-05-18 | 长春工业大学 | Longitudinal vibration surface mount type active water spraying propulsion device and driving method thereof |
| CN105141174A (en) * | 2015-09-07 | 2015-12-09 | 南京航空航天大学 | Patch type stationary wave rotary-type piezoelectric actuator |
| CN105141174B (en) * | 2015-09-07 | 2017-10-31 | 南京航空航天大学 | A kind of SMD standing-wave rotation type piezoelectric actuator |
| CN106505907A (en) * | 2017-01-05 | 2017-03-15 | 南京工程学院 | A kind of can two-way linear operation single-phase supersonic motor |
| CN106505907B (en) * | 2017-01-05 | 2018-06-12 | 南京工程学院 | It is a kind of can two-way linear operation single-phase supersonic motor |
| CN106956284A (en) * | 2017-04-28 | 2017-07-18 | 南京航空航天大学 | A kind of deep-sea full open model mechanical finger structure and its working method |
| CN109067238A (en) * | 2018-08-02 | 2018-12-21 | 哈尔滨工程大学 | A kind of patch type four-footed piezoelectric actuation mechanism |
| CN109013259A (en) * | 2018-08-09 | 2018-12-18 | 中南大学 | A kind of Large Amplitude Vibration amplitude transformer for ultrasonic vibration at high speed secondary process |
| CN113595439A (en) * | 2020-04-30 | 2021-11-02 | 华侨大学 | Circular patch type double-foot linear ultrasonic motor and stator thereof |
| CN113595439B (en) * | 2020-04-30 | 2024-06-07 | 华侨大学 | Circular patch type bipedal linear ultrasonic motor and stator thereof |
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| CN103746597B (en) | 2017-03-01 |
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