CN102739106A - Bent vibration composite single-driving foot linear ultrasonic driver - Google Patents
Bent vibration composite single-driving foot linear ultrasonic driver Download PDFInfo
- Publication number
- CN102739106A CN102739106A CN2012102132190A CN201210213219A CN102739106A CN 102739106 A CN102739106 A CN 102739106A CN 2012102132190 A CN2012102132190 A CN 2012102132190A CN 201210213219 A CN201210213219 A CN 201210213219A CN 102739106 A CN102739106 A CN 102739106A
- Authority
- CN
- China
- Prior art keywords
- piezoelectric ceramic
- curved
- rear end
- shakes
- horn
- 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
The invention provides a bent vibration composite single-driving foot linear ultrasonic driver, and relates to the technical field of piezoelectric ultrasonic motors. The invention solves the mechanical output capacity limitation problem of the conventional ultrasonic motor stator. The boosters of the driver are quadrangular prisms with a rectangular and reducing cross section; an internally threaded blind hole is formed in the center of each of the big end faces of the boosters; the two side faces of a driving foot are fixedly connected with the small end faces of the two boosters; a bolt is arranged in the center of the side face of each rear end cover, the bolts on the two rear end covers are in threaded connection with the internally threaded blind holes in the center of the big end faces of the boosters respectively; four pairs of bent vibration piezoelectric ceramic wafers are sleeved on bolts between the boosters and the rear end covers respectively; an electrode plate is fixed between each booster and a bent vibration piezoelectric ceramic wafer next to the booster and an electrode plate is also fixed between two bent vibration piezoelectric ceramic wafer; two thin-wall beams are fixed on the two sides of the rear end covers respectively; and the tail end of each thin-wall beam is fixed with a mounting seat. The driver can be used in the field of ultrasonic motor manufacturing.
Description
Technical field
The present invention relates to a kind of curved compound monopodia line ultrasonic driver that shakes, belong to the 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 the supersonic range; Form particle movement at surface of elastomer specified point or specific region with particular track; And then through the friction between stator, the rotor coupling microscopic motion of particle is converted to the macroscopic motion of rotor; Have low speed high torque, need not gear, no electromagnetic interference, advantage such as response speed is fast and cut off self-lock, have very as a kind of piezoelectric actuator and to use widely.
From the simplicity of exiting principle and the simplicity of theoretical analysis method, piezoelectric ultrasonic motor adopts the mode of metallic elastic body stickup piezoelectric ceramic thin sheet to encourage mostly at present, owing to receive the d of piezoelectric ceramic
31Pattern mechanical-electric coupling efficient and ceramic material tensile strength are low, and the restriction of the intensity of glue-line and fatigue life etc., and such energisation mode makes the mechanical fan-out capability of ultrasound electric machine receive serious restriction.
Summary of the invention
The problem that the mechanical fan-out capability that exists for the stator that solves the ultrasound electric machine that the existing mode that adopts the metallic elastic body to paste piezoelectric ceramic thin sheet encourages is restricted the invention provides a kind of curved compound monopodia line ultrasonic driver that shakes.
The curved compound monopodia line ultrasonic driver that shakes comprises that one drives foot, two horn, four pairs of curved shake piezoelectric ceramic piece, two rear end caps, eight electrode slices, four thin walled beams and four mount pads; Horn is that the cross section is rectangle and tapered four prisms cylinder, and there is a tapped blind hole at the center of the large end face of horn; Two sides that drive foot are fixedly connected with the small end face of two horn respectively; The center of a side has double-screw bolt in each rear end cap, the double-screw bolt on two rear end caps respectively with tapped blind threaded connection at two horn large end face centers, four pairs of curved piezoelectric ceramic pieces that shake are enclosed within respectively on the double-screw bolt between horn and the rear end cap; At curvedly shaking between the piezoelectric ceramic piece of being adjacent of horn, two curved fixing respectively electrode slices between the piezoelectric ceramic piece that shake; The rear end cap both sides are fixed with two thin walled beams respectively, and the end of each thin walled beam is fixed a mount pad.
Piezo ceramic element in the curved compound monopodia line ultrasonic driver that shakes of the present invention adopts sandwich structure, adopts the d of the high mechanical-electric coupling efficient of piezoelectric ceramic
33Pattern work has solved the problem of pasting low, the mechanical fan-out capability difference of piezoelectric ceramic chip piezoelectric ultrasonic motor mechanical-electric coupling efficient.The present invention adopts along the excitation of the flexural vibration mode of two quadratures of the curved piezoelectric ceramic piece realization transducer that shakes of two couple of thickness direction polarization, owing to adopt homotype mode, does not have the frequency degeneracy problem between mode; Front end housing adopts the 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, makes motor performance be improved; Thin walled beam can realize that resiliency supported and vibration isolate, and drops to the influence degree that connects the flexural vibration mode of oscillator of mount pad and other member minimum.The curved piezoelectric ceramic piece of bending in the compound monopodia line ultrasonic driver that shakes that shakes of four couples of the present invention adopts amplitude to equate, frequency is transducer self resonance frequency, phase difference encourages for+90 ° ac voltage signal; Utilize the extensional vibration of piezoelectric ceramic piece in oscillator, to motivate the flexural vibration mode of two quadratures; Drive sufficient surperficial particle in the middle of two flexural vibration modes are superimposed upon and produce elliptical trajectory, and then through driving the macroscopic motion output of the friction coupling realization mover between foot and the mover.If the phase difference of adjustment excitation signals is-90 °, can realize reverse drive.
But that the curved compound monopodia line ultrasonic driver that shakes of the present invention has is simple in structure, flexible design, mechanical-electric coupling efficient are high, can realize big moment output, stable performance, be easy to control the advantage of producing in serial form.
Description of drawings
Fig. 1 is the cutaway view of the curved compound monopodia line ultrasonic driver that shakes of the present invention; Fig. 2 is the perspective view of the curved compound monopodia line ultrasonic driver that shakes shown in Figure 1; Fig. 3 is the polarised direction sketch mapes of four pairs of curved piezoelectric ceramic pieces that shake among Fig. 1, and Fig. 4 is two basic flexural vibration mode vibration shape sketch mapes of oscillator shown in Figure 1.
Embodiment
Embodiment one: combine Fig. 1 to Fig. 3 that this execution mode is described; The described curved compound monopodia line ultrasonic driver that shakes of this execution mode comprises that one drives the curved piezoelectric ceramic piece 3 of shaking of 1, two horn of foot 2, four pairs, two rear end caps 6, eight electrode slices 8, four thin walled beams 4 and four mount pads 5; Horn 2 is that the cross section is rectangle and tapered four prisms cylinder, and there is a tapped blind hole at the center of the large end face of horn 2; Two sides that drive foot 1 are fixedly connected with the small end face of two horn 2 respectively; The center of a side has double-screw bolt 6-1 in each rear end cap 6; Double-screw bolt 6-1 on two rear end caps 6 respectively with tapped blind threaded connection at two horn, 2 large end face centers, four pairs of curved piezoelectric ceramic pieces 3 that shake are enclosed within respectively on the double-screw bolt 6-1 between horn 2 and the rear end cap 6; At curvedly shaking between the piezoelectric ceramic piece 3 of being adjacent of horn 2, two curved fixing respectively electrode slices 8 between the piezoelectric ceramic piece 3 that shake; Rear end cap 6 both sides are fixed with two thin walled beams 4 respectively, and the end of each thin walled beam 4 is fixed a mount pad 5.
The curved of this execution mode shakes compound monopodia line ultrasonic driver when using; Be connected with the common port of driving power from 6 second, four, five, seven electrode slices 8 of any rear flank end cap; The first, a phase drive signal of eight electrode slices 8 and driving power is connected, the 3rd, six electrode slice 8 and driving power other one mutually drive signal connect.
Embodiment two: this embodiment is with the difference of the embodiment one described curved compound monopodia line ultrasonic driver that shakes; Every pair of polarised directions of bending two curved piezoelectric ceramic pieces that shake in the piezoelectric ceramic piece 3 that shakes are opposite; The every curved piezoelectric ceramic piece that shakes is formed by two and half identical sheet piezoelectric ceramic piece 3-1 of structure; The polarised direction of said two and half sheet piezoelectric ceramic piece 3-1 is opposite, and the adjacent face of said two and half sheet piezoelectric ceramic piece 3-1 is a cutting face; The cutting face coplane of two couples curved the shake piezoelectric ceramic piece 3 adjacent with two horn 2, the cutting face coplane of two couples curved the shake piezoelectric ceramic piece 3 adjacent with two rear end caps 6, and said two cutting faces are vertical each other.
Embodiment three: this embodiment is that with the difference of the embodiment one described curved compound monopodia line ultrasonic driver that shakes driving 1 and two horn 2 of foot is integral piece.Like this can simplified processing process.
Embodiment four: the difference of this embodiment and the embodiment one described curved compound monopodia line ultrasonic driver that shakes is, all is fixed with insulating case 7 between the double-screw bolt 6-1 between the double-screw bolt 6-1 on curved shake piezoelectric ceramic piece 3 and the rear end cap 6, on electrode slice 8 and the rear end cap 6.
Embodiment five: this embodiment is that with the difference of the embodiment one described curved compound monopodia line ultrasonic driver that shakes rear end cap 6, double-screw bolt 6-1, thin walled beam 4 and mount pad 5 are integral piece.Like this can simplified processing process.
Embodiment six: this embodiment is that with the difference of the embodiment one described curved compound monopodia line ultrasonic driver that shakes the cross section of the said curved piezoelectric ceramic piece 3 that shakes is square or circular.
Claims (6)
1. the curved compound monopodia line ultrasonic driver that shakes comprises that one drives foot (1), two horn (2), four pairs of curved shake piezoelectric ceramic piece (3), two rear end caps (6), eight electrode slices (8), four thin walled beams (4) and four mount pads (5); It is characterized in that: horn (2) is that the cross section is rectangle and tapered four prisms cylinder, and there is a tapped blind hole at the center of the large end face of horn (2); Two sides that drive foot (1) are fixedly connected with the small end face of two horn (2) respectively; The center of a side has double-screw bolt (6-1) in each rear end cap (6); Double-screw bolt (6-1) on two rear end caps (6) respectively with tapped blind threaded connection at two horn (2) large end face center, four pairs of curved piezoelectric ceramic pieces (3) that shake are enclosed within respectively on the double-screw bolt (6-1) between horn (2) and the rear end cap (6); Between the curved piezoelectric ceramic piece that shakes (3) that horn (2) is adjacent, two curved fixing respectively electrode slices (8) between the piezoelectric ceramic piece (3) that shake; Rear end cap (6) both sides are fixed with two thin walled beams (4) respectively, and the end of each thin walled beam (4) is fixed a mount pad (5).
2. the curved compound monopodia line ultrasonic driver that shakes according to claim 1; The polarised direction that it is characterized in that every pair of two curved piezoelectric ceramic pieces that shake in the curved piezoelectric ceramic piece (3) that shakes is opposite; The every curved piezoelectric ceramic piece that shakes is formed by two and half identical sheet piezoelectric ceramic pieces (3-1) of structure; The polarised direction of said two and half sheet piezoelectric ceramic pieces (3-1) is opposite, and the adjacent face of said two and half sheet piezoelectric ceramic pieces (3-1) is a cutting face; The cutting face coplane of the curved piezoelectric ceramic piece (3) that shakes of two couple adjacent with two horn (2), the cutting face coplane of the curved piezoelectric ceramic piece (3) that shakes of two couple adjacent with two rear end caps (6), and said two cutting faces are vertical each other.
3. the curved compound monopodia line ultrasonic driver that shakes according to claim 1 is characterized in that driving foot (1) and two horn (2) and is integral piece.
4. the curved compound monopodia line ultrasonic driver that shakes according to claim 1 is characterized in that between the double-screw bolt (6-1) on curved shake piezoelectric ceramic piece (3) and the rear end cap (6), all is fixed with insulating case (7) between the double-screw bolt (6-1) on electrode slice (8) and the rear end cap (6).
5. the curved compound monopodia line ultrasonic driver that shakes according to claim 1 is characterized in that rear end cap (6), double-screw bolt (6-1), thin walled beam (4) and mount pad (5) are integral piece.
6. the curved compound monopodia line ultrasonic driver that shakes according to claim 1 is characterized in that the cross section of the said curved piezoelectric ceramic piece (3) that shakes is square or circular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102132190A CN102739106A (en) | 2012-06-26 | 2012-06-26 | Bent vibration composite single-driving foot linear ultrasonic driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102132190A CN102739106A (en) | 2012-06-26 | 2012-06-26 | Bent vibration composite single-driving foot linear ultrasonic driver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102739106A true CN102739106A (en) | 2012-10-17 |
Family
ID=46994040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102132190A Pending CN102739106A (en) | 2012-06-26 | 2012-06-26 | Bent vibration composite single-driving foot linear ultrasonic driver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102739106A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103746599A (en) * | 2014-01-27 | 2014-04-23 | 哈尔滨工业大学 | Paster bent vibration composite single-foot piezoelectric supersonic motor vibrator |
| CN103758430A (en) * | 2014-01-28 | 2014-04-30 | 哈尔滨工业大学 | Piezoelectric ultrasonic vibrator driving type automobile power window |
| CN104485837A (en) * | 2014-12-11 | 2015-04-01 | 南京航空航天大学 | Composite vibrator standing wave ultrasonic motor and excitation method thereof |
| CN104518704A (en) * | 2015-01-09 | 2015-04-15 | 哈尔滨工业大学 | Cross-shaped symmetric beam type patch single-foot ultrasonic motor vibrator |
| CN105406758A (en) * | 2016-01-08 | 2016-03-16 | 哈尔滨工业大学 | Two degrees of freedom linear motion platform adopting piezoelectric drive |
| CN108880319A (en) * | 2018-04-28 | 2018-11-23 | 淮海工学院 | Indulge curved composite vibrational mode increasing material manufacturing ultrasonic vibrator |
| CN110957940A (en) * | 2018-09-27 | 2020-04-03 | 佳能株式会社 | Vibration type driving device, vibration type driving apparatus, driving control device, and driving control method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101072000A (en) * | 2007-03-26 | 2007-11-14 | 哈尔滨工业大学 | Single-driving foot sandwiched transducer type longitudinal bending linear ultrasonic motor |
| CN201656809U (en) * | 2010-01-05 | 2010-11-24 | 南京航空航天大学 | Double-rotor bending mode linear ultrasonic motor |
| CN201854205U (en) * | 2010-11-24 | 2011-06-01 | 南京航空航天大学 | Linear ultrasonic motor clamping and location 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 |
-
2012
- 2012-06-26 CN CN2012102132190A patent/CN102739106A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101072000A (en) * | 2007-03-26 | 2007-11-14 | 哈尔滨工业大学 | Single-driving foot sandwiched transducer type longitudinal bending linear ultrasonic motor |
| CN201656809U (en) * | 2010-01-05 | 2010-11-24 | 南京航空航天大学 | Double-rotor bending mode linear ultrasonic motor |
| CN201854205U (en) * | 2010-11-24 | 2011-06-01 | 南京航空航天大学 | Linear ultrasonic motor clamping and location 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 |
Non-Patent Citations (1)
| Title |
|---|
| 石胜君，陈维山，刘军考，谢涛: "大推力推挽纵振弯纵复合直线超声电机", 《中国电机工程学报》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103746599A (en) * | 2014-01-27 | 2014-04-23 | 哈尔滨工业大学 | Paster bent vibration composite single-foot piezoelectric supersonic motor vibrator |
| CN103758430A (en) * | 2014-01-28 | 2014-04-30 | 哈尔滨工业大学 | Piezoelectric ultrasonic vibrator driving type automobile power window |
| CN103758430B (en) * | 2014-01-28 | 2016-04-06 | 哈尔滨工业大学 | The driving automobile electric car-window of piezoelectric ultrasonic vibrator |
| CN104485837A (en) * | 2014-12-11 | 2015-04-01 | 南京航空航天大学 | Composite vibrator standing wave ultrasonic motor and excitation method thereof |
| CN104518704A (en) * | 2015-01-09 | 2015-04-15 | 哈尔滨工业大学 | Cross-shaped symmetric beam type patch single-foot ultrasonic motor vibrator |
| CN105406758A (en) * | 2016-01-08 | 2016-03-16 | 哈尔滨工业大学 | Two degrees of freedom linear motion platform adopting piezoelectric drive |
| CN108880319A (en) * | 2018-04-28 | 2018-11-23 | 淮海工学院 | Indulge curved composite vibrational mode increasing material manufacturing ultrasonic vibrator |
| CN110957940A (en) * | 2018-09-27 | 2020-04-03 | 佳能株式会社 | Vibration type driving device, vibration type driving apparatus, driving control device, and driving control method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101626203B (en) | Vibrator of beam type linear ultrasonic motor using bending vibration modes | |
| CN101626206B (en) | Longitudinal and flexural composite transducer type double cylinder-shaped traveling wave ultrasonic motor vibrator | |
| CN102739106A (en) | Bent vibration composite single-driving foot linear ultrasonic driver | |
| CN101630924B (en) | T-shaped linear ultrasonic motor oscillator | |
| CN100581042C (en) | Plane multi-freedom altrasonic electric machine of single vibrator longtitude bend sandwich changer type | |
| CN102361413B (en) | Composite flexural vibration sandwich type double-foot linear ultrasonic motor vibrator | |
| CN100581041C (en) | Spherical multi-freedom altrasonic electric machine of single vibrator longtitude bend sandwich changer type | |
| CN102361414A (en) | Buckling composite modal sandwich type double-foot rotating ultrasonic motor vibrator with elastic supports | |
| CN102355160B (en) | Longitudinal and bending composite mode sandwich two-foot ultrasonic linear motor oscillator with elastic support | |
| CN101262187B (en) | Bending vibration sandwich energy converter cylinder stator and ultrasonic electromotor using this stator | |
| CN101262186B (en) | Vertical bending layer energy converter cylinder stator and ultrasonic electromotor using this stator | |
| CN102437786A (en) | Surface mount type square four-footed rotational ultrasonic motor vibrator | |
| CN102437782B (en) | Sandwich I-shaped four-footed linear ultrasonic motor vibrator | |
| CN101630925B (en) | Square rotary ultrasonic motor oscillator | |
| CN101626204B (en) | U-type double-pin linear ultrasonic motor vibrator | |
| CN101651431B (en) | Cantilever longitudinal-bending composite transducer type cylindrical traveling-wave ultrasonic motor vibrator | |
| CN101262188B (en) | Ultrasonic electromotor using vertical vibration sandwich energy converter cylinder stator | |
| CN102361412A (en) | Patch type rectangular four-foot linear ultrasonic motor vibrator | |
| CN101626207B (en) | Vibrator of beam type rotary ultrasonic motor using bending vibration modes | |
| CN102437780A (en) | Partition excitation type composite bending vibration linear ultrasonic motor oscillator | |
| CN101626205B (en) | Rectangular four-pin linear ultrasonic motor vibrator | |
| CN103762886A (en) | Sandwich type T type two-foot straight line piezoelectric ultrasonic motor oscillator | |
| CN102437779A (en) | Wedge-shaped pre-tightened sandwich type rectangular four-pin linear ultrasonic motor vibrator | |
| CN101651429B (en) | Ring type traveling wave ultrasonic motor vibrator of cantilever longitudinal-bending composite transducer | |
| CN102355161A (en) | Rotary motor using composite bending vibration biped linear ultrasonic oscillators |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20121017 |