CN1262062C - Supersonic motor standing wave driving vibrator capable of realizing linear or rotary movement - Google Patents
Supersonic motor standing wave driving vibrator capable of realizing linear or rotary movement Download PDFInfo
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- CN1262062C CN1262062C CN 03132540 CN03132540A CN1262062C CN 1262062 C CN1262062 C CN 1262062C CN 03132540 CN03132540 CN 03132540 CN 03132540 A CN03132540 A CN 03132540A CN 1262062 C CN1262062 C CN 1262062C
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Abstract
The present invention relates to a supersonic motor standing wave driving vibrator capable of realizing linear or rotary movement, which belongs to the application field of ultrasonic motors. All existing ultrasonic motors making linear or rotary movement universally have the defects of small output force or force moment. The present invention aims to provide an ultrasonic vibrator which has simple structure and can realize bidirectional drive. The ultrasonic vibrator comprises sandwich transducers (1), wherein two sandwich transducers (1) are fixed by a support frame bracket, an included angle (theta) formed between the two sandwich transducers (1) after fixed by the support frame (2) is from 0 to 180 DEG C, and the support frame (2) is connected to the nodal surfaces of the sandwich transducers (1). The present invention can realize ultrasonic motors with high speed and high power output and can also realize bidirectional movement. An ultrasonic motor adopting the ultrasonic vibrator can provide output power as much as a plurality of kilowatts in theory and can run at high speed under heavy loads. The present invention has the advantages of simple structure and low cost and is suitable for mass production.
Description
Technical field: the present invention relates to the oscillator that uses on a kind of ultrasound electric machine.
Background technology: ultrasound electric machine is a kind of ultrasonic vibrational energy of utilizing, and produces the motor of actuating force, all at present straight lines or the ultrasound electric machine ubiquity power output that rotates or the little defective of moment by rubbing action.
Summary of the invention: the object of the present invention is to provide a kind of simple in structure, can realize making ultrasound electric machine make the ultrasonic vibrator of bi-directional drive, it comprises sandwich transducer 1, two sandwich transducers 1 carry out fixed-site by support 2,0 °＜the θ of angle that forms between two sandwich transducers 1 after support 2 is fixed＜180 °, support 2 is connected the nodal section place of sandwich transducer 1.The present invention links together two sandwich transducers by support, its piezoelectric element adopts piezoelectric ceramic piece, realize its driving with sandwich transducer as longitudinal pumping, utilize one group or organize the combination of this ultrasonic vibrator more, can realize at a high speed, the ultrasound electric machine of high-power output and can realize bidirectional-movement.One group of ultrasonic vibrator of the present invention or several groups are coupled together by connector, contact head is acted on disk or the annulus, then can driver plate or annulus rotation, realize rotary ultrasonic motor; Contact head is acted on the line slideway driving guide rail rectilinear motion or oscillator itself as the mover moving linearly, just can realize linear ultrasonic motor.Adopt the ultrasound electric machine of drive vibrator of the present invention both to have the efficient of driving height, the advantage that can realize bi-directional drive is arranged again, sandwich transducer adopts the highest longitudinal vibration mode of electromechanical conversion efficiency, realize powerful output easily, therefore the power output that adopts the ultrasound electric machine of such oscillator can reach in theory kilowatt, can heavily loaded high-speed cruising, linear ultrasonic motor in the experiment, maximum speed can reach more than the 800mm/s, in the load of installing additional on the support more than the 15Kg, still has good speed stability, Driven by Ultrasonic Motors oscillator of the present invention can be used as working robot's joint driver, the direct driver of high-speed straight-line workbench etc. etc., it is simple in structure, and cost is low, is suitable for producing in batches.
Description of drawings: Fig. 1 is a structural representation of the present invention, the ultrasonic straight line motor structural representation that Fig. 2 is made up of two groups of drive vibrator.
Embodiment one: with reference to Fig. 1, present embodiment comprises sandwich transducer 1, sandwich transducer is Langevin-type transducer again, it comprises front end housing 1-1, the piezoelectric ceramic piece 1-3 of rear end cap 1-2 and longitudinal polarization, front end housing 1-1 and rear end cap 1-2 are made of metal, front end housing 1-1 can be made by aluminium or titanium alloy, rear end cap 1-2 can be become by steel or copper, the cross section of front end housing is that the front is little, the back is big, the longitudinal section can be a stairstepping, parabola shaped etc., can have the cumulative effect like this, screw 4 is arranged through rear end cap 1-2, piezoelectric ceramic piece 1-3, finish being connected of sandwich transducer 1 and support 2 between front end housing 1-1 and the support 2, also can be at piezoelectric ceramic piece 1-3 and front end housing 1-1, rear end cap 1-2, support 2, viscose glue between the screw 4, can have better vibrating effect like this, two sandwich transducers 1 carry out fixed-site by support 2, the angle theta that forms between two sandwich transducers 1 after support 2 is fixed is the angle between 0～180 °, support 2 is connected the nodal section place of sandwich transducer 1, nodal section is meant that the sandwich transducer vibration displacement is zero face, when using, because precision is limit, support 2 is connected near the nodal section position of sandwich transducer 1 also in protection scope of the present invention, the lower end of two sandwich transducers 1 all is pasted with friction plate 3, also friction plate 3 can be sticked on object surfaces that oscillator drives, can improve delivery efficiency like this, increase the service life, and can effectively eliminate noise, friction plate 3 usefulness rub resistance materials are made, sandwich transducer adopts the piezoelectric ceramic of longitudinal polarization to realize extensional vibration among the present invention, the front end housing of two sandwich transducers does not contact, if this oscillator is as mover, before making alive did not drive, the front end housing of two sandwich transducers contacted with stator simultaneously; Before if this oscillator as stator, does not then add driving voltage, the front end housing of two sandwich transducers contacts with mover simultaneously.During driving, a sandwich transducer job, another sandwich transducer suspends, and perhaps two sandwich transducers drive simultaneously by the PWM pulse width modulation mode.
Embodiment two: with reference to Fig. 2, the ultrasonic straight line motor of present embodiment has four sandwich transducers, and its structure is consistent with resonance frequency, couples together as mover moving linearly on guide rail with support.The front end of each sandwich transducer all is a contact head, and when applying driving voltage for these four sandwich transducers, the front end housing contact head of four sandwich transducers keeps in touch with guide rail simultaneously.When realizing when right is moved, apply frequency and the identical driving voltage of himself resonance frequency with sandwich transducer 1-d for sandwich transducer 1-b, sandwich transducer 1-b and sandwich transducer 1-d produce the longitudinal extension vibration simultaneously, the front end housing contact head is done diagonal movement, and masterpiece is used for guide rail, guide rail imposes on one of sandwich transducer and the reaction force that makes progress to the right, power upwards suspends mover, disengaging loses inhibition with contacting of guide rail to sandwich transducer 1-a with sandwich transducer 1-c, and power to the right makes the motion of mover realization to right.In like manner, in the time will realizing the motion of direction left, apply driving voltage with himself resonance frequency same frequency for sandwich transducer 1-a and sandwich transducer 1-c, sandwich transducer produces the longitudinal extension vibration, and active force is in guide rail, and guide rail gives one of sandwich transducer and the reaction force that makes progress left, power upwards suspends mover, sandwich transducer 1-b and sandwich transducer 1-d break away from and the contacting of guide rail, and resistance is zero, and the moving mover of trying hard to recommend left moves.In addition, four sandwich transducers also can drive work simultaneously, at this moment adopt the PWM pulse width modulation mode that it is carried out drive controlling.If one group of such ultrasonic vibrator or several groups are coupled together by connector, with driving action on disk or annulus, then can driver plate or annulus rotation, realize rotary ultrasonic motor.
Claims (4)
1, a kind of ultrasound electric machine standing wave drive vibrator capable of realizing linear or rotary movement, it comprises sandwich transducer (1), it is characterized in that two sandwich transducers (1) carry out fixed-site by support (2), 0 °＜the θ of angle that forms between two sandwich transducers (1) after support (2) is fixing＜180 °, support (2) is connected the nodal section place of sandwich transducer (1).
2, ultrasound electric machine standing wave drive vibrator capable of realizing linear or rotary movement according to claim 1 is characterized in that the lower end of two sandwich transducers (1) all is pasted with friction plate (3).
3, ultrasound electric machine standing wave drive vibrator capable of realizing linear or rotary movement according to claim 1 and 2, it is characterized in that sandwich transducer comprises the piezoelectric ceramic piece (1-3) of front end housing (1-1), rear end cap (1-2) and longitudinal polarization, screw (4) is arranged through finishing being connected of sandwich transducer (1) and support (2) between rear end cap (1-2), piezoelectric ceramic piece (1-3), front end housing (1-1) and the support (2).
4, the capable ripple drive vibrator of ultrasound electric machine capable of realizing linear or rotary movement according to claim 3 is characterized in that viscose glue between piezoelectric ceramic piece (1-3) and front end housing (1-1), rear end cap (1-2), support (2), screw (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03132540 CN1262062C (en) | 2003-07-30 | 2003-07-30 | Supersonic motor standing wave driving vibrator capable of realizing linear or rotary movement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03132540 CN1262062C (en) | 2003-07-30 | 2003-07-30 | Supersonic motor standing wave driving vibrator capable of realizing linear or rotary movement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1474503A CN1474503A (en) | 2004-02-11 |
| CN1262062C true CN1262062C (en) | 2006-06-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 03132540 Expired - Fee Related CN1262062C (en) | 2003-07-30 | 2003-07-30 | Supersonic motor standing wave driving vibrator capable of realizing linear or rotary movement |
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| CN (1) | CN1262062C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101087111B (en) * | 2007-04-25 | 2010-12-08 | 哈尔滨工业大学 | Sanwiched energy converter wave residing ultrasonic electromotor for realizing bidirectional line motion |
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| CN101694974B (en) * | 2009-10-16 | 2012-03-07 | 南京航空航天大学 | Tower-shaped linear ultrasonic motor and electric excitation mode |
| CN103227584B (en) * | 2013-05-08 | 2016-03-23 | 苏州科技学院 | A kind of bi-directional drive linear ultrasonic motor |
| CN103199735B (en) * | 2013-05-08 | 2015-09-02 | 苏州科技学院 | A kind of bi-directional drive rotary ultrasonic motor |
| CN103192097B (en) * | 2013-05-08 | 2015-01-07 | 苏州科技学院 | Single driven ultrasonic elliptical vibration turning device |
| CN103199731B (en) * | 2013-05-08 | 2015-09-02 | 苏州科技学院 | One singly encourages linear ultrasonic motor |
| CN103208943B (en) * | 2013-05-08 | 2015-09-02 | 苏州科技学院 | A kind of single stimulated rotation ultrasonic motor |
| CN104104204A (en) * | 2014-07-01 | 2014-10-15 | 南京航空航天大学 | Vibration energy recovery device having function of self-adaptive control on ultrasound piezoelectric actuation |
| CN104444135B (en) * | 2014-12-09 | 2016-09-21 | 苏州科技大学 | A kind of single excitation ultrasonic elliptical vibratory many oscillators bidirectional material conveyer device |
| CN104467519A (en) * | 2014-12-09 | 2015-03-25 | 苏州科技学院 | Single electric signal excitation ultrasonic elliptic vibration multi-vibrator bidirectional material conveying device |
| CN104967357B (en) * | 2015-07-20 | 2017-04-12 | 哈尔滨工业大学 | Space deployment mechanism driven based on multi-piezoelectric vibrator step crawling mode |
| CN106524824A (en) * | 2016-10-14 | 2017-03-22 | 广汉市思科信达科技有限公司 | Rotating type ultrasonic wave scale removing and preventing device |
-
2003
- 2003-07-30 CN CN 03132540 patent/CN1262062C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101087111B (en) * | 2007-04-25 | 2010-12-08 | 哈尔滨工业大学 | Sanwiched energy converter wave residing ultrasonic electromotor for realizing bidirectional line motion |
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| CN1474503A (en) | 2004-02-11 |
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Granted publication date: 20060628 |