CN102868316A - Paster-type dual-feet ultrasound motor oscillator - Google Patents
Paster-type dual-feet ultrasound motor oscillator Download PDFInfo
- Publication number
- CN102868316A CN102868316A CN2012103869931A CN201210386993A CN102868316A CN 102868316 A CN102868316 A CN 102868316A CN 2012103869931 A CN2012103869931 A CN 2012103869931A CN 201210386993 A CN201210386993 A CN 201210386993A CN 102868316 A CN102868316 A CN 102868316A
- Authority
- CN
- China
- Prior art keywords
- intermediate beam
- bending vibration
- piezoelectric ceramic
- feet
- thin walled
- 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.)
- Pending
Links
Images
Landscapes
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
A paster-type dual-feet ultrasound motor oscillator belongs to the technical field of piezoelectric ultrasound motors and solves the problem that the existing sandwich dual-driving-feet liner driving piezoelectric ultrasound motors are complex in assembly and difficult in microminiaturization. An intermediate beam of the paster-type dual-feet ultrasound motor oscillator is a quadrangular with a square cross section, two end faces of the intermediate beam are respectively connected with the head end of an amplitude variation rod, a friction plate is arranged at the tail end of each amplitude variation rod which is a block tapering off from the head end to the tail end, a bending vibration piezoelectric ceramic sheet is arranged on four lateral walls of the intermediate beam, a pair of thin-wall beams is respectively arranged two opposite lateral walls of the intermediate beam, one ends of the thin-wall beams forming a thin-wall beam pair are respectively fixed on two end portions of the intermediate beam, installing seats are fixed at the other ends of the thin-wall beams, polarization is carried out on the bending vibration piezoelectric ceramic sheet along the thickness direction, and polarization directions of the two bending vibration piezoelectric ceramic sheets which are mutually parallel are same. The paster-type dual-feet ultrasound motor oscillator is applicable to manufacture of the ultrasound motors.
Description
Technical field
The present invention relates to a kind of SMD biped ultrasonic motor oscillator, belong to the piezoelectric ultrasonic motor technical field.
Background technology
Piezoelectric ultrasonic motor utilizes the inverse piezoelectric effect of piezoelectric ceramic, in elastomer, motivate the vibration in the supersonic range, form the particle movement with particular track at surface of elastomer specified point or specific region, and then the microscopic motion of particle is converted to the macroscopic motion of rotor by the friction between stator, rotor coupling, have low speed high torque, need not gear, without electromagnetic interference, fast response time and the advantage such as cut off self-lock.
Chinese patent " composite flexural vibration sandwich type double-foot linear ultrasonic motor vibrator ", publication number is CN102361413A, open day is on February 22nd, 2012, a kind of new configuration of piezoelectric ultrasonic motor that adopts homotype quadrature bending vibration modes to realize the double-driving foot linear drives has been proposed first, success avoided the mode degeneracy problem in the design process, but have the advantage such as simple in structure, flexible design producing in serial form; But owing to adopting sandwich structure, its processing, assembling are comparatively complicated, and be very high to the requirement on machining accuracy of part; In addition, sandwich structure is also so that its microminiaturization is difficult to realization.
Summary of the invention
The present invention is complicated for the assembling of the piezoelectric ultrasonic motor existence that solves existing sandwich double-driving foot linear drives and is difficult to microminiaturized problem, a kind of SMD biped ultrasonic motor oscillator is provided.
SMD biped ultrasonic motor oscillator of the present invention, it comprises intermediate beam, it also comprises four mount pads, four thin walled beams, two ultrasonic transformers, four bending vibration piezoelectric ceramic pieces and two friction plates,
Intermediate beam is that cross section is foursquare quadrangular, and two end faces of intermediate beam are connected with the head end of a ultrasonic transformer respectively, and each ultrasonic transformer end is provided with friction plate, ultrasonic transformer be by head end to terminal tapered block,
Be provided with the bending vibration piezoelectric ceramic piece on four sidewalls of intermediate beam,
On two relative sidewalls of intermediate beam a pair of thin walled beam is set respectively, forms two ends that this end to two thin walled beams of thin walled beam is separately fixed at intermediate beam, the other end of described thin walled beam is fixed with mount pad,
Described bending vibration piezoelectric ceramic piece through-thickness polarization, the polarised direction of two bending vibration piezoelectric ceramic pieces that are parallel to each other is identical.
Described intermediate beam, four thin walled beams, four mount pads and two ultrasonic transformers are integrated part.
Advantage of the present invention is: the present invention adopts four bending vibration piezoelectric ceramic pieces of through-thickness polarization to realize the excitation of two homotype quadrature odd-order flexural vibrations of oscillator, owing to adopting the homotype mode of oscillation, the symmetry that only needs to guarantee the oscillator cross section just can satisfy the consistent of two bending vibration modes resonance frequencys, so that the oscillator design possesses very large flexibility.
The present invention adopts paster structure, and process and assemble is very easy, and is lower to the part processing precision requirement, and is easy to realize microminiaturized; In addition, the thin walled beam in the oscillator can be realized resiliency supported and vibration isolation, drops to the influence degree that connects the flexural vibration mode of oscillator of mount pad and other member minimum.
That the present invention has advantages of is simple in structure, flexible design, be convenient to realize microminiaturized.
Description of drawings
Fig. 1 is the perspective view of motor oscillator of the present invention;
Fig. 2 is the structural representation of the integral piece of intermediate beam, four thin walled beams, four mount pads and two ultrasonic transformer formation;
Fig. 3 is the polarised direction schematic diagram of a kind of polarization mode of four bending vibration piezoelectric ceramic pieces;
Fig. 4 promotes the view of mover motion when being motor oscillator work of the present invention, 7 is mover among the figure, and arrow is depicted as the movable direction of mover.
Embodiment
Embodiment one: present embodiment is described below in conjunction with Fig. 1 to Fig. 4, the described SMD biped ultrasonic motor oscillator of present embodiment, it comprises intermediate beam 1, and it also comprises four mount pads 2, four thin walled beams 3, two ultrasonic transformers 4, four bending vibration piezoelectric ceramic pieces 5 and two friction plates 6
Be provided with bending vibration piezoelectric ceramic piece 5 on four sidewalls of intermediate beam 1,
On two relative sidewalls of intermediate beam 1 a pair of thin walled beam 3 is set respectively, forms two ends that this end to two thin walled beams 3 of thin walled beam 3 is separately fixed at intermediate beam 1, the other end of described thin walled beam 3 is fixed with mount pad 2,
Described bending vibration piezoelectric ceramic piece 5 through-thickness polarization, the polarised direction of two bending vibration piezoelectric ceramic pieces 5 that are parallel to each other is identical.
The described motor oscillator of present embodiment is when using, intermediate beam 1 is connected with the common port of driving power, among Fig. 1, the outer surface and one of two fixing bending vibration piezoelectric ceramic pieces 5 drives mutually signal and is connected on about 1 two sides of intermediate beam, and the outer surface and other of two bending vibration piezoelectric ceramic pieces 5 that intermediate beam is fixed on two sides about in the of 1 drives mutually signal and is connected.
In the present embodiment, four bending vibration piezoelectric ceramic pieces 5 are arranged at four sides of intermediate beam 1, its correspondence is positioned at the anti-node location of oscillator odd-order flexural vibrations, and this is so that the stretching vibration that the bending vibration piezoelectric ceramic piece 5 that is parallel to each other replaces can effectively motivate the flexural vibrations of oscillator.Two bending vibration piezoelectric ceramic pieces 5 that motor oscillator of the present invention is parallel to each other when work are one group, adopt in-phase voltage to encourage to it; Four bending vibration piezoelectric ceramic piece 5 proportions are that oscillator bending vibration resonance frequency, phase difference are pressed signal for+90 ° two-phase alternating current and encouraged; Among Fig. 1, two stretching vibrations that bending vibration piezoelectric ceramic piece 5 replaces fixing on about 1 two sides of intermediate beam can motivate the flexural vibrations in the oscillator XOY plane, and correspondence causes ultrasonic transformer 4 terminal particle horizontal directions, the i.e. axial displacement of OY; Intermediate beam is fixing two stretching vibrations that bending vibration piezoelectric ceramic piece 5 replaces on two sides about in the of 1, can motivate the flexural vibrations in the oscillator XOZ plane, and correspondence causes ultrasonic transformer 4 terminal particle vertical directions, the i.e. axial displacement of OZ; Two flexural vibrations stacks can be moved at two ultrasonic transformers, 4 end surface particles generation elliptical orbit in the same way, and then export by the macroscopic motion of the friction coupling realization mover 7 between ultrasonic transformer terminal 4 and the mover 7.If adjusting the phase difference of two-phase pumping signal is-90 °, can realize reverse drive.
The described SMD biped ultrasonic motor oscillator of present embodiment is when practical application, with a kind of mated condition of mover referring to shown in Figure 4, friction plate 6 frictional connections of the lower surface of the mover of strip and ultrasonic transformer 4 ends, when SMD biped ultrasonic motor oscillator vibration, ultrasonic transformer 4 terminal generations are vibrated, corresponding friction plate 6 and mover friction coupling, and then drive the mover motion.
Embodiment two: below in conjunction with Fig. 2 present embodiment is described, present embodiment is for to the further specifying of execution mode one, and described intermediate beam 1, four thin walled beams 3, four mount pads 2 and two ultrasonic transformers 4 are integrated part.
Described thin walled beam 3 can be realized the effect of resiliency supported and vibration isolation, can drop to the influence degree that connects the flexural vibration mode of oscillator of oscillator and other member minimum.
Claims (2)
1. SMD biped ultrasonic motor oscillator, it comprises intermediate beam (1), it is characterized in that: it also comprises four mount pads (2), four thin walled beams (3), two ultrasonic transformers (4), four bending vibration piezoelectric ceramic pieces (5) and two friction plates (6)
Intermediate beam (1) is foursquare quadrangular for cross section, two end faces of intermediate beam (1) are connected with the head end of a ultrasonic transformer (4) respectively, each ultrasonic transformer (4) end is provided with friction plate (6), ultrasonic transformer (4) is to terminal tapered block by head end
Be provided with bending vibration piezoelectric ceramic piece (5) on four sidewalls of intermediate beam (1),
On two relative sidewalls of intermediate beam (1) a pair of thin walled beam (3) is set respectively, form two ends that this end to two thin walled beams (3) of thin walled beam (3) is separately fixed at intermediate beam (1), the other end of described thin walled beam (3) is fixed with mount pad (2)
The polarization of described bending vibration piezoelectric ceramic piece (5) through-thickness, the polarised direction of the two bending vibration piezoelectric ceramic pieces (5) that are parallel to each other is identical.
2. SMD biped ultrasonic motor oscillator according to claim 1, it is characterized in that: described intermediate beam (1), four thin walled beams (3), four mount pads (2) and two ultrasonic transformers (4) are integrated part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103869931A CN102868316A (en) | 2012-10-12 | 2012-10-12 | Paster-type dual-feet ultrasound motor oscillator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103869931A CN102868316A (en) | 2012-10-12 | 2012-10-12 | Paster-type dual-feet ultrasound motor oscillator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102868316A true CN102868316A (en) | 2013-01-09 |
Family
ID=47446974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103869931A Pending CN102868316A (en) | 2012-10-12 | 2012-10-12 | Paster-type dual-feet ultrasound motor oscillator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102868316A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103746601A (en) * | 2014-01-27 | 2014-04-23 | 哈尔滨工业大学 | Paster transducer cylinder traveling wave piezoelectric supersonic motor vibrator |
| CN106452162A (en) * | 2016-11-25 | 2017-02-22 | 哈尔滨工业大学 | Patch type clamped-beam orthogonal composite ultrasonic wire-drawing oscillator |
| CN113595437A (en) * | 2020-04-30 | 2021-11-02 | 华侨大学 | Diamond patch type double-foot linear ultrasonic motor and stator thereof |
| CN113595438A (en) * | 2020-04-30 | 2021-11-02 | 华侨大学 | Rhombic double-longitudinal-vibration sandwich type excitation double-foot linear ultrasonic motor and stator thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101283460A (en) * | 2005-06-14 | 2008-10-08 | 新阶科技股份有限公司 | Mechanism comprised of ultrasonic lead screw motor |
| JP2008289348A (en) * | 2007-04-17 | 2008-11-27 | Mitsumi Electric Co Ltd | Driving device |
| CN102355160A (en) * | 2011-10-19 | 2012-02-15 | 哈尔滨工业大学 | Longitudinal and bending composite mode sandwich two-foot ultrasonic linear motor oscillator with elastic support |
| CN102361413A (en) * | 2011-10-18 | 2012-02-22 | 哈尔滨工业大学 | Composite flexural vibration sandwich type double-foot linear ultrasonic motor vibrator |
-
2012
- 2012-10-12 CN CN2012103869931A patent/CN102868316A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101283460A (en) * | 2005-06-14 | 2008-10-08 | 新阶科技股份有限公司 | Mechanism comprised of ultrasonic lead screw motor |
| JP2008289348A (en) * | 2007-04-17 | 2008-11-27 | Mitsumi Electric Co Ltd | Driving device |
| CN102361413A (en) * | 2011-10-18 | 2012-02-22 | 哈尔滨工业大学 | Composite flexural vibration sandwich type double-foot linear ultrasonic motor vibrator |
| CN102355160A (en) * | 2011-10-19 | 2012-02-15 | 哈尔滨工业大学 | Longitudinal and bending composite mode sandwich two-foot ultrasonic linear motor oscillator with elastic support |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103746601A (en) * | 2014-01-27 | 2014-04-23 | 哈尔滨工业大学 | Paster transducer cylinder traveling wave piezoelectric supersonic motor vibrator |
| CN106452162A (en) * | 2016-11-25 | 2017-02-22 | 哈尔滨工业大学 | Patch type clamped-beam orthogonal composite ultrasonic wire-drawing oscillator |
| CN106452162B (en) * | 2016-11-25 | 2018-07-17 | 哈尔滨工业大学 | A kind of orthogonal composite ultraphonic wave wire drawing oscillator of the clamped beam type of patch type |
| CN113595437A (en) * | 2020-04-30 | 2021-11-02 | 华侨大学 | Diamond patch type double-foot linear ultrasonic motor and stator thereof |
| CN113595438A (en) * | 2020-04-30 | 2021-11-02 | 华侨大学 | Rhombic double-longitudinal-vibration sandwich type excitation double-foot linear ultrasonic motor and stator thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102868315A (en) | Paster-type bending vibration composite dual-feet ultrasound motor oscillator | |
| Liu et al. | A high-power linear ultrasonic motor using bending vibration transducer | |
| CN101626203B (en) | Vibrator of beam type linear ultrasonic motor using bending vibration modes | |
| CN102307021B (en) | Not same order bending vibration modes linear ultrasonic motor and function mode thereof | |
| CN104967355A (en) | Bionic crawling multi-foot linear piezoelectric actuator | |
| CN103746597A (en) | Paster T-shaped dual-feet linear piezoelectric supersonic motor vibrator | |
| CN111464070A (en) | Linear ultrasonic motor stator and electric excitation method thereof | |
| CN102437786A (en) | Surface mount type square four-footed rotational ultrasonic motor vibrator | |
| CN102780417B (en) | Microminiature antifriction driving type linear ultrasonic motor and exciting mode thereof | |
| CN102868316A (en) | Paster-type dual-feet ultrasound motor oscillator | |
| CN102361414A (en) | Buckling composite modal sandwich type double-foot rotating ultrasonic motor vibrator with elastic supports | |
| CN102882420A (en) | Surface-mounted piezoelectric ceramic and metal composite beam and method for exciting the composite beam to realize longitudinal and bending compounded vibration | |
| CN102355160A (en) | Longitudinal and bending composite mode sandwich two-foot ultrasonic linear motor oscillator with elastic support | |
| CN102437782B (en) | Sandwich I-shaped four-footed linear ultrasonic motor vibrator | |
| CN102437783B (en) | Surface mount type I-shaped four-footed linear ultrasonic motor vibrator | |
| CN105406754A (en) | Longitudinal-flexural-combined single-foot two-degree-of-freedom ultrasonic motor vibrator | |
| CN101860257B (en) | Miniature piezoelectric monocrystal linear motor | |
| CN102882422A (en) | Sandwich type piezoelectric metal composite beam and method for driving longitudinal and torsional combined oscillation of sandwich type piezoelectric metal composite beam | |
| CN211859981U (en) | Circular patch type double-foot linear ultrasonic motor and stator thereof | |
| CN104578899A (en) | Patch-type circular ring double-pin ultrasonic motor vibrator | |
| CN102025286B (en) | Alternating force based linear ultrasonic motor | |
| CN102361412A (en) | Patch type rectangular four-foot linear ultrasonic motor vibrator | |
| CN102497132A (en) | Ceramic embedded I-shaped four-foot linear ultrasonic motor vibrator | |
| CN102437780A (en) | Partition excitation type composite bending vibration linear ultrasonic motor oscillator | |
| CN103795290A (en) | Patch type longitudinal vibration composite single-foot piezoelectric ultrasonic motor oscillator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130109 |