CN103746598A - Paster longitudinal vibration composite dual-feet piezoelectric supersonic motor vibrator - Google Patents
Paster longitudinal vibration composite dual-feet piezoelectric supersonic motor vibrator Download PDFInfo
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- CN103746598A CN103746598A CN201410040087.5A CN201410040087A CN103746598A CN 103746598 A CN103746598 A CN 103746598A CN 201410040087 A CN201410040087 A CN 201410040087A CN 103746598 A CN103746598 A CN 103746598A
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Abstract
A paster longitudinal vibration composite dual-feet piezoelectric supersonic motor vibrator relates to the technical field of piezoelectric supersonic motors and solves the problems of a complex machining tool and difficulty for realizing miniaturization of the existing sandwich longitudinal vibration dual-feet linear supersonic motor vibrator. The vibrator comprises a metal base body 1 and six piezoelectric ceramic pieces 2; in the metal base body 1, the front end and rear end of a horizontal beam 1-1 are respectively provided with a horizontal variable amplitude rod 1-1-1; a vertical variable amplitude rod 1-2-1 is arranged at each end of each vertical beam 1-2; the horizontal beam 1-1 and the two vertical beams 1-2 are arranged to a U shape; a driving foot 1-3 is arranged between each horizontal variable amplitude rod 1-1-1 and the adjacent vertical variable amplitude rod 1-2-1; a flange 1-4 is arranged at each inside surface of the horizontal beam 1-1 and the two vertical beams 1-2; a thin wall beam 1-5 is machined between horizontal beam 1-1 and the flange 1-4 and between the vertical beams 1-2 and the flanges 1-4; one piezoelectric ceramic piece 2 is fixedly connected to the front and rear surfaces of each of the horizontal beam 1-1 and the two vertical beams 1-2. The paster longitudinal vibration composite dual-feet piezoelectric supersonic motor vibrator is suitable for the field of manufacturing of the supersonic motor.
Description
Technical field
The present invention relates to a kind of piezoelectric ultrasonic motor oscillator, belong 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 CN101626204, name are called " U-shaped double-pin linear ultrasonic motor vibrator ", and it has proposed the U-shaped double-pin linear ultrasonic motor vibrator of a kind of sandwich structure, and it has realized the consistent of two mode of oscillation characteristic frequencies of oscillator.This oscillator has advantages of that mechanical-electric coupling efficiency is high, can realize high-torque output, stable performance, be easy to control, can producing in serial form; But owing to adopting sandwich structure, its processing, assembling are comparatively complicated, very high to the requirement on machining accuracy of part; In addition, sandwich structure also makes its microminiaturization be difficult to realize.
Summary of the invention
For solve the process and assemble that exists in the compound double-pin linear ultrasonic motor vibrator of existing sandwich longitudinal vibration comparatively complicated, be difficult to realize microminiaturized problem, the invention provides the compound biped piezoelectric ultrasonic motor of a kind of SMD longitudinal vibration oscillator.
The compound biped piezoelectric ultrasonic motor of SMD longitudinal vibration of the present invention oscillator, comprises metallic matrix 1 and six piezoelectric ceramic pieces 2; Metallic matrix 1 comprises horizontal beam 1-1, two vertical beam 1-2 and two sufficient 1-3 of driving, the left and right two ends of described horizontal beam 1-1 are respectively provided with a level luffing bar 1-1-1, one end of each vertical beam 1-2 is provided with a vertical ultrasonic transformer 1-2-1, and level luffing bar 1-1-1 and vertically ultrasonic transformer 1-2-1 are all that cross section is rectangle tapered block; Horizontal beam 1-1 and two vertical beam 1-2 are according to U-shaped setting, and two drive the upper surface of sufficient 1-3 to be connected with the small end face of a vertical ultrasonic transformer 1-2-1 respectively; Two drive a side of sufficient 1-3 to be connected with the small end face of level luffing bar 1-1-1 respectively; Metallic matrix 1 also comprises three flange 1-4 and three thin walled beam 1-5, the medial surface of horizontal beam 1-1 and two vertical beam 1-2 is provided with a flange 1-4, between horizontal beam 1-1 and flange 1-4, be all processed with thin walled beam 1-5 between vertical beam 1-2 and flange 1-4; The forward and backward surface of described horizontal beam 1-1, two vertical beam 1-2 is fixedly connected with respectively a slice piezoelectric ceramic piece 2, the equal through-thickness polarization of all piezoelectric ceramic pieces 2, upper two piezoelectric ceramic piece 2 polarised directions that arrange of horizontal beam 1-1 are contrary, upper two piezoelectric ceramic piece 2 polarised directions that arrange of each vertical beam 1-2 are contrary, and two piezoelectric ceramic piece 2 polarised directions that the front surface of two vertical beam 1-2 arranges are contrary.
The compound biped piezoelectric ultrasonic motor of SMD longitudinal vibration of the present invention oscillator utilizes the compound double-pin linear of realizing of the extensional vibration of a horizontal beam and two vertical beams to activate, and piezoelectric ceramic piece is arranged near the node of horizontal beam and vertical beam extensional vibration waveform; Oscillator proportion when work is that the two-phase alternating current that oscillator resonance frequency, phase difference are 90o presses signal to carry out; Wherein two piezoelectric ceramic pieces on horizontal beam are one group, adopt in-phase voltage to encourage, and four piezoelectric ceramic pieces on vertical beam are one group, adopt an other phase voltage to encourage; The extensional vibration of vertical beam can cause the vibration (referring to Fig. 4) that drives sufficient vertical direction, and the extensional vibration meeting of horizontal beam causes the vibration (referring to Fig. 5) that drives sufficient horizontal direction; The stack meeting of two orthogonal extensional vibrations is in the motion (referring to Fig. 6) that drives foot to go out to produce elliptical orbit, and then by driving friction between foot and mover coupling to realize the macroscopic motion output of mover.If adjusting the phase difference of two-phase pumping signal is-90o to realize reverse drive.Level luffing bar and vertically ultrasonic transformer all adopt variable cross-section design to 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.
The compound biped piezoelectric ultrasonic motor of SMD longitudinal vibration of the present invention oscillator adopts paster structure, and simple in structure, process and assemble is very easy, lower to part processing precision requirement, and is easy to realize microminiaturized and integrated.
Accompanying drawing explanation
Fig. 1 be the compound biped piezoelectric ultrasonic motor of SMD longitudinal vibration of the present invention oscillator perspective view, Fig. 2 is the perspective view of metallic matrix 1 in oscillator shown in Fig. 1, Fig. 3 is the polarised direction schematic diagram of piezoelectric ceramic piece 2 in Fig. 1, the formation figure of the vertical vibrating mode that Fig. 4 utilizes while working for oscillator shown in Fig. 1, the formation figure of the horizontal vibration mode that Fig. 5 utilizes while being respectively the work of oscillator shown in Fig. 1, Fig. 6 promotes the schematic diagram (vibration shape variation schematic diagram) of mover motion while being the oscillator work shown in Fig. 1; Wherein mark A is precompression direction; B is the mover direction of motion; C is mover.
Embodiment
Embodiment one, in conjunction with Fig. 1 to Fig. 3, present embodiment is described, the compound biped piezoelectric ultrasonic motor of the SMD longitudinal vibration oscillator described in present embodiment, comprises metallic matrix 1 and six piezoelectric ceramic pieces 2; Metallic matrix 1 comprises horizontal beam 1-1, two vertical beam 1-2 and two sufficient 1-3 of driving, the left and right two ends of described horizontal beam 1-1 are respectively provided with a level luffing bar 1-1-1, one end of each vertical beam 1-2 is provided with a vertical ultrasonic transformer 1-2-1, and level luffing bar 1-1-1 and vertically ultrasonic transformer 1-2-1 are all that cross section is rectangle tapered block; Horizontal beam 1-1 and two vertical beam 1-2 are according to U-shaped setting, and two drive the upper surface of sufficient 1-3 to be connected with the small end face of a vertical ultrasonic transformer 1-2-1 respectively; Two drive a side of sufficient 1-3 to be connected with the small end face of level luffing bar 1-1-1 respectively; Metallic matrix 1 also comprises three flange 1-4 and three thin walled beam 1-5, the medial surface of horizontal beam 1-1 and two vertical beam 1-2 is provided with a flange 1-4, between horizontal beam 1-1 and flange 1-4, be all processed with thin walled beam 1-5 between vertical beam 1-2 and flange 1-4; The forward and backward surface of described horizontal beam 1-1, two vertical beam 1-2 is fixedly connected with respectively a slice piezoelectric ceramic piece 2, the equal through-thickness polarization of all piezoelectric ceramic pieces 2, upper two piezoelectric ceramic piece 2 polarised directions that arrange of horizontal beam 1-1 are contrary, upper two piezoelectric ceramic piece 2 polarised directions that arrange of each vertical beam 1-2 are contrary, and two piezoelectric ceramic piece 2 polarised directions that the front surface of two vertical beam 1-2 arranges are contrary.
The compound biped piezoelectric ultrasonic motor of the SMD longitudinal vibration oscillator of present embodiment is in application, metallic matrix 1 is connected with the common port of driving power, the outer surface and one of two piezoelectric ceramic pieces 2 that horizontal beam 1-1 arranges drives signal to be connected mutually, and the outer surface and other of two upper four fixing bending vibration piezoelectric ceramic pieces 2 of vertical beam 1-2 drives signal to be connected mutually.
The difference of the compound biped piezoelectric ultrasonic motor of the SMD longitudinal vibration oscillator described in embodiment two, present embodiment and embodiment one is, describedly by horizontal beam 1-1, two vertical beam 1-2, two metallic matrixes 1 that drive sufficient 1-3, three flange 1-4 and three thin walled beam 1-5 to form, is integrated part.
Present embodiment can be simplified ultrasonic motor oscillator manufacture craft greatly; Thin walled beam 1-5, for realizing the effect of resiliency supported and vibration isolation, can drop to minimum on the impact of oscillator self vibration by oscillator and connecting of other member.
Claims (2)
1. the compound biped piezoelectric ultrasonic motor of SMD longitudinal vibration oscillator, comprises metallic matrix (1) and six piezoelectric ceramic pieces (2); Metallic matrix (1) comprises horizontal beam (1-1), two vertical beams (1-2) and two driving foots (1-3), the left and right two ends of described horizontal beam (1-1) are respectively provided with a level luffing bar (1-1-1), one end of each vertical beam (1-2) is provided with a vertical ultrasonic transformer (1-2-1), and level luffing bar (1-1-1) and vertically ultrasonic transformer (1-2-1) are all that cross section is rectangle tapered block; Horizontal beam (1-1) and two vertical beams (1-2) are according to U-shaped setting, and two drive the upper surface of foot (1-3) to be connected with the small end face of a vertical ultrasonic transformer (1-2-1) respectively; Two drive a side of foot (1-3) to be connected with the small end face of level luffing bar (1-1-1) respectively; It is characterized in that: metallic matrix (1) also comprises three flanges (1-4) and three thin walled beams (1-5), the medial surface of horizontal beam (1-1) and two vertical beams (1-2) is provided with a flange (1-4), between horizontal beam (1-1) and flange (1-4), be all processed with thin walled beam (1-5) between vertical beam (1-2) and flange (1-4); The forward and backward surface of described horizontal beam (1-1), two vertical beams (1-2) is fixedly connected with respectively a slice piezoelectric ceramic piece (2), all through-thickness polarization of all piezoelectric ceramic pieces (2), upper two piezoelectric ceramic pieces (2) polarised direction arranging of horizontal beam (1-1) is contrary, upper two piezoelectric ceramic pieces (2) polarised direction arranging of each vertical beam (1-2) is contrary, and two piezoelectric ceramic pieces (2) polarised direction that the front surface of two vertical beams (1-2) arranges is contrary.
2. the compound biped piezoelectric ultrasonic motor of SMD longitudinal vibration according to claim 1 oscillator, is characterized in that the described metallic matrixes (1) that are comprised of horizontal beam (1-1), two vertical beams (1-2), two driving foots (1-3), three flanges (1-4) and three thin walled beams (1-5) are integrated part.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410040087.5A CN103746598A (en) | 2014-01-27 | 2014-01-27 | Paster longitudinal vibration composite dual-feet piezoelectric supersonic motor vibrator |
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| CN201410040087.5A CN103746598A (en) | 2014-01-27 | 2014-01-27 | Paster longitudinal vibration composite dual-feet piezoelectric supersonic motor vibrator |
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| CN103746598A true CN103746598A (en) | 2014-04-23 |
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| CN201410040087.5A Pending CN103746598A (en) | 2014-01-27 | 2014-01-27 | Paster longitudinal vibration composite dual-feet piezoelectric supersonic motor vibrator |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111181439A (en) * | 2020-02-24 | 2020-05-19 | 南京航空航天大学 | Surface mount type rotary dual-drive piezoelectric actuator and working method thereof |
| CN112448610A (en) * | 2020-10-26 | 2021-03-05 | 南京航空航天大学 | Piezoelectric driving deep sea propulsion device and working method thereof |
| CN113162463A (en) * | 2021-05-11 | 2021-07-23 | 哈尔滨工业大学 | Ultrasonic motor vibrator with plate-cantilever beam combined structure and excitation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101626205A (en) * | 2009-08-25 | 2010-01-13 | 哈尔滨工业大学 | Rectangular four-pin linear ultrasonic motor vibrator |
| CN101626204A (en) * | 2009-08-25 | 2010-01-13 | 哈尔滨工业大学 | U-type double-pin linear ultrasonic motor vibrator |
| CN102437783A (en) * | 2011-12-22 | 2012-05-02 | 哈尔滨工业大学 | Paster type I-shaped four-foot linear ultrasonic motor vibrator |
-
2014
- 2014-01-27 CN CN201410040087.5A patent/CN103746598A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101626205A (en) * | 2009-08-25 | 2010-01-13 | 哈尔滨工业大学 | Rectangular four-pin linear ultrasonic motor vibrator |
| CN101626204A (en) * | 2009-08-25 | 2010-01-13 | 哈尔滨工业大学 | U-type double-pin linear ultrasonic motor vibrator |
| CN102437783A (en) * | 2011-12-22 | 2012-05-02 | 哈尔滨工业大学 | Paster type I-shaped four-foot linear ultrasonic motor vibrator |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111181439A (en) * | 2020-02-24 | 2020-05-19 | 南京航空航天大学 | Surface mount type rotary dual-drive piezoelectric actuator and working method thereof |
| CN111181439B (en) * | 2020-02-24 | 2024-05-28 | 南京航空航天大学 | Patch type rotary dual-drive piezoelectric actuator and working method thereof |
| CN112448610A (en) * | 2020-10-26 | 2021-03-05 | 南京航空航天大学 | Piezoelectric driving deep sea propulsion device and working method thereof |
| CN113162463A (en) * | 2021-05-11 | 2021-07-23 | 哈尔滨工业大学 | Ultrasonic motor vibrator with plate-cantilever beam combined structure and excitation method thereof |
| CN113162463B (en) * | 2021-05-11 | 2022-12-06 | 哈尔滨工业大学 | Ultrasonic motor vibrator with plate-cantilever beam combined structure and excitation method thereof |
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Application publication date: 20140423 |