CN101262187B - Bending vibration sandwich energy converter cylinder stator and ultrasonic electromotor using this stator - Google Patents
Bending vibration sandwich energy converter cylinder stator and ultrasonic electromotor using this stator Download PDFInfo
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- CN101262187B CN101262187B CN2008100644145A CN200810064414A CN101262187B CN 101262187 B CN101262187 B CN 101262187B CN 2008100644145 A CN2008100644145 A CN 2008100644145A CN 200810064414 A CN200810064414 A CN 200810064414A CN 101262187 B CN101262187 B CN 101262187B
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Abstract
A bending-vibration sandwiched transducer-typed cylindrical stator and an ultrasonic motor using the stator are provided, which relate to the technical field of piezoelectric ultrasonic motors and solve the problems that the existing piezoelectric ultrasonic motor has low electromechanical coupling efficiency and restricted mechanical output capability. Even numbers of bending vibration sandwiched transducers in the stator are symmetrically fixed on an outer side wall of a cylinder; a front end cover and a back end cover of the transducer are fixedly connected with each other by a flange; twopairs of bending-vibration piezoelectric ceramic plates are respectively fixed at both sides of the flange and polarized along the direction of the thickness of the ceramic plate and the directions of piezoelectric ceramic plates of corresponding positions on every two adjacent bending-vibration sandwiched transducers are opposite. Each bending-vibration sandwiched transducer on the stator of theultrasonic motor is fixed on a base by a grip block and a rotor with an axis and a rotor without an axis are embedded from the upward side and the downward side of the cylinder of the stator, wherein, the rotor without an axis is fixed on a torque output shaft of the rotor with an axis by a splice key. The bending-vibration sandwiched transducer-typed cylindrical stator of the invention can be applied to the field of the manufacturing of ultrasonic motors.
Description
Technical field
The present invention relates to a kind of bending vibration sandwich energy converter cylinder stator and use the ultrasound electric machine of this stator, 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 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, 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.For 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 be subjected to 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 mechanical fan-out capability be subjected to serious restriction.
Summary of the invention
In order to solve the problem that mechanical-electric coupling efficient that existing piezoelectric ultrasonic motor exists and low, the mechanical fan-out capability of ceramic material tensile strength are restricted, the invention provides a kind of bending vibration sandwich energy converter cylinder stator and use the ultrasound electric machine of this stator.
Bending vibration sandwich energy converter cylinder stator of the present invention is made up of cylinder and even number bending vibration sandwich energy converter; Described even number bending vibration sandwich energy converter is symmetrically distributed and is fixedly connected on outside the described cylinder side wall, and described bending vibration sandwich energy converter is made up of front end housing, rear end cap, insulating case, two pairs of curved shake piezoelectric ceramic piece, flange and scale copper electrodes; Front end housing is that the cross section is rectangle and tapered four prisms cylinder, the thickness of described front end housing equates with the height of cylinder, the small end face of front end housing is fixedlyed connected with the outer surface of cylinder side wall, there is a tapped blind hole at the center of the large end face of described front end housing, the center of rear end cap is the through hole that has internal thread, and the two ends of described flange center have double-screw bolt; The center of two symmetrical planes vertical with described double-screw bolt has a tapered blind hole respectively on described flange, flange is fixedlyed connected with rear end cap with front end housing respectively by double-screw bolt, two pairs of curved piezoelectric ceramic pieces that shake are enclosed within respectively between front end housing and the flange, on the double-screw bolt between flange and the rear end cap, front end housing and curved shaking between the piezoelectric ceramic piece, and two curved shaking of every pair are fixed with the scale copper electrode respectively between the piezoelectric ceramic piece, the described curved piezoelectric ceramic piece that shakes, be fixed with insulating case between the double-screw bolt of scale copper electrode and flange, described piezoelectric ceramic piece polarizes along thickness direction.
The ultrasound electric machine of use bending vibration sandwich energy converter cylinder stator of the present invention is made up of stator, rotor assembly, pedestal and even number grip block assembly; Rotor assembly is made up of tape spool rotor, a nothing axle rotor, linking bond, wear-resisting lining ring, rubber blanket, disk spring and locking nut; Wherein a tape spool rotor and a nothing axle rotor are truncated cone-shaped, described tape spool rotor and the thin end that do not have an axle rotor embed from the above and below of the cylinder of stator respectively, described nothing axle rotor is fixed on the moment output shaft of tape spool rotor by linking bond, be fixed with wear-resisting lining ring respectively at tape spool rotor and nothing axle rotor and the contacted side of cylinder, employing rubber blanket below not having the axle rotor, disk spring and locking nut are realized the tape spool rotor and are not had the pretension of axle rotor, the quantity of the bending vibration sandwich energy converter that comprises in the quantity of clamp assemblies and the described stator equates, each clamp assemblies is made up of two grip blocks, each grip block is " recessed " font, at the inboard center of the intermediate transverse girder of described grip block a cone centre is installed, two grip blocks of each group lay respectively at stator a bending vibration sandwich energy converter flange on, following relative fixed connects, cone centre on described two grip blocks embeds respectively in two tapered blind hole on the described flange, and following grip block is fixed on the pedestal.
Bending vibration sandwich energy converter cylinder stator provided by the invention, piezo ceramic element adopts sandwich structure, adopts the d of the high mechanical-electric coupling efficient of piezoelectric ceramic
33Pattern work solves the problem of pasting low, the mechanical fan-out capability difference of piezoelectric ceramic chip piezoelectric ultrasonic motor mechanical-electric coupling efficient; And by front end housing and the integrated configuration of cylinder, simplify the structure, improved the controllability of cylinder surface of elastomer particle vibration track, eliminate and adopt alternate manner connection transducer and cylinder stator vibration waveform adverse effect.When cylinder was operated in n rank bending vibration modes, the contained transducer number of bending vibration sandwich energy converter cylinder stator provided by the invention mostly was 4n most, the angle theta between any two transducer axis
1Satisfy: θ
1=90 ° * m/n, wherein m ∈ 1,2 ..., 4n-1}; All transducers are divided into two groups, the angle theta between any on the same group two transducers
2Satisfy: θ
2=180 ° * m/n, wherein m ∈ 1 ..., 2n-1}; Exponent number and transducer number that output torque that can be according to actual needs and size restrictions are selected the cylinder stator bending vibration modes flexibly.All transducers are divided into the same number of two groups, utilize the extensional vibration of piezoelectric ceramic piece in sandwich converter, to motivate flexural vibrations, by the control input signal, realize that two groups of transducers are motivating the bending vibration modes response that two amplitudes are equal, all differ pi/2 on time and space on the cylinder stator, two bending vibration modes responses are superimposed upon and form the row ripple on the stator, and then produce elliptical trajectory at stator tooth surface particle, by and rotor between the friction coupling realize the macroscopic motion output of rotor.The present invention realizes curved natural frequency and the curved degeneracy that shakes between the natural frequency of cylinder of shaking of transducer by area ratio, both sides, front end housing square-section ratio, rear end cap length, barrel bore size and the outside diameter of cylinder size of adjusting two end faces of front end housing.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 of driving gear surface particle, makes motor performance be improved.
But that stator provided by the invention and ultrasound electric machine have is simple in structure, flexible design, mechanical-electric coupling efficient height, 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 structural representation that has the bending vibration sandwich energy converter cylinder stator of four transducers, Fig. 2 is the cutaway view of Fig. 1, Fig. 3 is the polarised direction schematic diagrames of the curved piezoelectric ceramic pieces that shake of four groups in four bending vibration transducers among Fig. 1, Fig. 4 is stator and a ultrasound electric machine pedestal 4 shown in Figure 1, the assembling schematic diagram of rotor, Fig. 5 is the cutaway view that has the ultrasound electric machine of bending vibration sandwich energy converter cylinder stator shown in Figure 1, Fig. 6 is the A-A partial sectional view of Fig. 5, Fig. 7 is the B-B cutaway view of Fig. 5, Fig. 8 to Figure 11 is that the five rank bending vibration modes vibration shapes of the bending vibration sandwich energy converter cylinder stator with four transducers shown in Figure 1 change schematic diagrames, specifically be to equate two groups of amplitudes, frequency is the curved resonance frequency of shaking of transducer self, phase difference is that the interior vibration shape of a complete vibration period under+90 ° ac voltage signal excitation is controlled changes schematic diagram, that is: V
1=Acos (2 π t/T), V
2=Asin (2 π t/T), V
0=0, V
1Be the voltage excitation signals of first group of sandwich converter, V
2Be the voltage excitation signals of second group of sandwich converter, A is the driving voltage signal amplitude, and T is the driving voltage signal period, t is the time, and Fig. 8 is t=nT (n=0,1,2...) constantly stator vibration shape schematic diagram, Fig. 9 is t=(n+1/4) T (n=0,1,2...) constantly stator vibration shape schematic diagram, Figure 10 is t=(n+1/2) T (n=0,1,2...) constantly stator vibration shape schematic diagram, Figure 11 is t=(n+3/4) T (n=0,1,2...) Shi Ke a stator vibration shape schematic diagram.
Embodiment
Embodiment one: the bending vibration sandwich energy converter cylinder stator of present embodiment is made up of cylinder 1-5 and even number bending vibration sandwich energy converter 1-7; Described even number bending vibration sandwich energy converter 1-7 is symmetrically distributed and is fixedly connected on outside the described cylinder 1-5 sidewall, and described bending vibration sandwich energy converter 1-7 is made up of front end housing 1-5-3, rear end cap 1-1, insulating case 1-2, two couples of curved piezoelectric ceramic piece 1-3, flange 1-4 and scale copper electrode 1-6 of shaking; Front end housing 1-5-3 is that the cross section is rectangle and tapered four prisms cylinder, the thickness of described front end housing 1-5-3 equates with the height of cylinder 1-5, the small end face of front end housing 1-5-3 is fixedlyed connected with the outer surface of cylinder 1-5 sidewall, there is a tapped blind hole at the center of the large end face of described front end housing 1-5-3, the center of rear end cap 1-1 is the through hole that has internal thread, and the two ends at described flange 1-4 center have double-screw bolt 1-4-2; The center of two symmetrical planes vertical with described double-screw bolt 1-4-2 has a tapered blind hole 1-4-1 respectively on described flange 1-4, flange 1-4 is fixedlyed connected with rear end cap 1-1 with front end housing 1-5-3 respectively by double-screw bolt 1-4-2, two couples of curved piezoelectric ceramic piece 1-3 that shake are enclosed within respectively between front end housing 1-5-3 and the flange 1-4, on the double-screw bolt 1-4-2 between flange 1-4 and the rear end cap 1-1, front end housing 1-5-3 and curved shaking between the piezoelectric ceramic piece 1-3, and two curved shaking of every pair are fixed with scale copper electrode 1-6 respectively between the piezoelectric ceramic piece 1-3, the described curved piezoelectric ceramic piece 1-3 that shakes, be fixed with insulating case 1-2 between the double-screw bolt 1-4-2 of scale copper electrode 1-6 and flange 1-4, described piezoelectric ceramic piece 1-3 polarizes along thickness direction, and the polarised direction of the curved piezoelectric ceramic piece that shakes of the last correspondence position of per two adjacent bending vibration sandwich energy converter 1-7 is opposite.
The every curved piezoelectric ceramic piece 1-3 symmetry of shaking is cut into left half sheet 1-3-1 and right half sheet 1-3-2, the polarised direction of a described left side half sheet 1-3-1 and right half sheet 1-3-2 is opposite, and the polarised direction of adjacent two left sides, half sheet 1-3-1 and the two adjacent right side half sheet 1-3-2 is also opposite.
The 1-4 of flange described in the present embodiment is positioned at the nodal section position of the flexural vibrations of bending vibration sandwich energy converter 1-7.
Tapered blind hole 1-4-1 in the present embodiment on the flange 1-4 side is the bite as bending vibration sandwich energy converter cylinder stator, to drop to minimum like this to the influence degree of stator natural resonance frequency, can prevent the distortion of the vibration shape and the drift of resonance frequency, reduce energy loss.
Referring to Fig. 1 to 3, be the structural representation that has the stator of four bending vibration sandwich energy converters, its operation principle is: bending vibration sandwich energy converter cylinder stator adopts the flexural vibrations that realize transducer along the piezoelectric ceramic piece of thickness direction polarization; Realize curved natural frequency and the curved degeneracy that shakes between the natural frequency of cylinder of shaking of transducer by area ratio, both sides, front end housing square-section ratio, rear end cap length, barrel bore size and the outside diameter of cylinder size of adjusting two end faces of front end housing; 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 of driving gear surface particle, makes motor performance be improved; Transducer adopts with the alternating voltage of self bending the resonance frequency same frequency that shakes and encourages, all transducers are divided into two groups and encourage, as shown in Figs. 8 to 11, two groups of sandwich converters adopt amplitude to equate, frequency is the curved resonance frequency of shaking of transducer self, phase difference is ac voltage signal when excitation of+90 °, utilize the extensional vibration of piezoelectric ceramic piece in sandwich converter, to motivate flexural vibrations, and then be implemented in and motivate two amplitudes on the cylinder stator and equate, on time and space, all differ the bending vibration modes response of pi/2, two bending vibration modes responses are superimposed upon and form the row ripple on the stator, driving gear surface particle produces elliptical trajectory, realizes the macroscopic motion output of rotor by the coupling of the friction between driving gear and the rotor; The rotor surface adhesion wear-resisting lining ring, wear-resisting lining ring and stator tooth adopt the conical surface contact, the location of realization rotor assembly has also increased contact area, can improve output torque, increase the service life, effectively eliminates noise; If adjusting the phase difference of excitation signals is-90 °, can change capable wave line of propagation, finally realize the rotor counter motion.
Embodiment two: the difference of present embodiment and embodiment one described bending vibration sandwich energy converter cylinder stator is that described cylinder 1-5 and front end housing 1-5-3 are integral part by a block of metal materials processing.
Front end housing 1-5-3 and cylinder 1-5 in the present embodiment are one, can reduce energy loss like this, help improving the controllability of driving gear surface particle vibration track.
Embodiment three: the difference of present embodiment and embodiment one described bending vibration sandwich energy converter cylinder stator is, be evenly distributed with the parallel driving gear 1-5-5 of central axis of some and described cylinder 1-5 on the described cylinder 1-5 inwall, the top and bottom of described driving gear 1-5-5 have the last conical surface 1-5-1 and the following conical surface 1-5-2 of symmetry respectively.
The cylinder 1-5 inwall of present embodiment increases driving gear 1-5-5, can amplify stator surface particle vibration trajectory amplitudes, the conical surface at the two ends up and down on described driving gear 1-5-5 surface has increased the contact area between stator and the rotor, has improved the stability of rotor rotation and the output torque of rotor.
Embodiment four: the difference of present embodiment and embodiment one described bending vibration sandwich energy converter cylinder stator is that the cross section of described rear end cap 1-2, curved shake piezoelectric ceramic piece 1-3 and flange 1-4 is rectangle or circle.
Rear end cap 1-2 in the present embodiment, curved shake piezoelectric ceramic piece 1-3 and flange 1-4 adopt the shape of rectangle, circular this easy processing, can reach the purpose of simplified processing process.
Embodiment five: the ultrasound electric machine of the use embodiment one described bending vibration sandwich energy converter cylinder stator of present embodiment is made up of stator 1, rotor assembly, pedestal 4 and even number grip block assembly; Wherein stator 1 is the described bending vibration sandwich energy converter cylinder stator of embodiment one to five arbitrary execution mode, and rotor assembly is made up of tape spool rotor 2-1, nothing axle rotor 2-2, a linking bond 2-3, wear-resisting lining ring 2-4, rubber blanket 2-5, disk spring 2-6 and locking nut 2-7; Wherein a tape spool rotor 2-1 and a nothing axle rotor 2-2 are truncated cone-shaped, described tape spool rotor 2-1 and the thin end that do not have an axle rotor 2-2 embed from the above and below of the cylinder 1-5 of stator 1 respectively, described nothing axle rotor 2-2 is fixed on the moment output shaft 2-1-2 of tape spool rotor 2-1 by linking bond 2-3, be fixed with wear-resisting lining ring 2-4 respectively at tape spool rotor 2-1 and nothing axle rotor 2-2 and the contacted side of cylinder 1-5, employing rubber blanket 2-5 below not having axle rotor 2-2, disk spring 2-6 and locking nut 2-7 realize tape spool rotor 2-1 and do not have the pretension of axle rotor 2-2, the quantity of the bending vibration sandwich energy converter that comprises in the quantity of clamp assemblies and the described stator 1 equates, each clamp assemblies is made up of two grip block 5-1, the front view of each grip block 5-1 is " recessed " font, at the inboard center of the intermediate transverse girder of described grip block 5-1 a cone centre 5-2 is installed, two grip block 5-1 of each group lay respectively at stator 1 a bending vibration sandwich energy converter flange 1-4 on, following relative fixed connects, cone centre 5-2 on described two grip block 5-1 embeds respectively in two tapered blind hole 1-4-1 on the described flange 1-4, and following grip block 5-1 is fixed on the pedestal 4.
The fixing means of fixing and grip block 5-1 and the motor base 4 of described two grip block 5-1 can connect by screw or bolt then by on two bossings of a band grip block 5-1 two through hole 5-4 that have internal thread being set respectively.
Referring to Fig. 4 to 7, be the structural representation of the ultrasound electric machine of a stator that has four bending vibration sandwich energy converters.
Wear-resisting lining ring 2-4 described in the present embodiment adopts Polymer Friction Materials, and described wear-resisting lining ring 2-4 is by the fixing tape spool rotor 2-1 and do not have the side of rotor 2-2 of bonding method.
When the stator in the present embodiment adopts embodiment three described structures, the side of described tape spool rotor 2-1, nothing axle rotor 2-2 is identical with the tapering of upper end conical surface 1-5-1, the lower end conical surface 1-5-2 of the pectination driving gear 1-5-5 of stator, to guarantee that rotor is that face contacts with pectination driving gear 1-5-5.This structure realizes the location of rotor assembly by cone match, and has increased contact area, can improve output torque, increase the service life, and can also effectively eliminate noise.
Be processed with screwed hole 4-1 and unthreaded hole 4-2 on the pedestal 4 of the ultrasound electric machine of the use bending vibration sandwich energy converter cylinder stator of present embodiment; outer cover 3 is fixed on the pedestal 4 by screw 7 and screwed hole 4-1; realized encapsulation and protection to motor, unthreaded hole 4-2 is used for realizing the installation of motor in mechanical system.
Embodiment six: the difference of the ultrasound electric machine of present embodiment and embodiment five described use bending vibration sandwich energy converter cylinder stators is, be evenly distributed with some through hole 2-1-1 on described tape spool rotor 2-1 and the nothing axle rotor 2-2, described some through hole 2-1-1 are parallel with the moment output shaft 2-1-2 of tape spool rotor 2-1.
Present embodiment has increased through hole 2-1-1 on rotor, reduced the quality of rotor, has reduced the moment of inertia of rotor, can improve the motor dynamic characteristic.
Claims (10)
1. bending vibration sandwich energy converter cylinder stator, it is made up of cylinder (1-5) and even number bending vibration sandwich energy converter (1-7); It is characterized in that described even number bending vibration sandwich energy converter (1-7) symmetrical distribution is fixedly connected on outside described cylinder (1-5) sidewall, described bending vibration sandwich energy converter (1-7) is made up of front end housing (1-5-3), rear end cap (1-1), insulating case (1-2), two pairs of curved shake piezoelectric ceramic piece (1-3), flange (1-4) and scale copper electrodes (1-6); Front end housing (1-5-3) is that the cross section is rectangle and tapered four prisms cylinder, the thickness of described front end housing (1-5-3) equates with the height of cylinder (1-5), the small end face of front end housing (1-5-3) is fixedlyed connected with the outer surface of cylinder (1-5) sidewall, there is a tapped blind hole at the center of the large end face of described front end housing (1-5-3), the center of rear end cap (1-1) is the through hole that has internal thread, and the two ends at described flange (1-4) center have double-screw bolt (1-4-2); The center of going up two symmetrical planes vertical with described double-screw bolt (1-4-2) at described flange (1-4) has a tapered blind hole (1-4-1) respectively, flange (1-4) is fixedlyed connected with rear end cap (1-1) with front end housing (1-5-3) respectively by double-screw bolt (1-4-2), two pairs of curved piezoelectric ceramic pieces (1-3) that shake are enclosed within respectively between front end housing (1-5-3) and the flange (1-4), on the double-screw bolt (1-4-2) between flange (1-4) and the rear end cap (1-1), front end housing (1-5-3) and curved shaking between the piezoelectric ceramic piece (1-3), and two curved shaking of every pair are fixed with scale copper electrode (1-6) respectively between the piezoelectric ceramic piece (1-3), the described curved piezoelectric ceramic piece (1-3) that shakes, be fixed with insulating case (1-2) between the double-screw bolt (1-4-2) of scale copper electrode (1-6) and flange (1-4), described piezoelectric ceramic piece (1-3) is along the thickness direction polarization, and the polarised direction of the curved piezoelectric ceramic piece that shakes of the last correspondence position of per two adjacent bending vibration sandwich energy converters (1-7) is opposite.
2. bending vibration sandwich energy converter cylinder stator according to claim 1 is characterized in that described flange (1-4) is positioned at the nodal section position of the flexural vibrations of bending vibration sandwich energy converter (1-7).
3. bending vibration sandwich energy converter cylinder stator according to claim 1, it is characterized in that described every curved piezoelectric ceramic piece (1-3) symmetry of shaking is cut into left half sheet (1-3-1) and right half sheet (1-3-2), the polarised direction of a described left side half sheet (1-3-1) and right half sheet (1-3-2) is opposite, and the polarised direction of adjacent two left side half sheets (1-3-1) and adjacent two right side half sheets (1-3-2) is also opposite.
4. bending vibration sandwich energy converter cylinder stator according to claim 1 is characterized in that described cylinder (1-5) and front end housing (1-5-3) are integral part by a block of metal materials processing.
5. bending vibration sandwich energy converter cylinder stator according to claim 1, it is characterized in that being evenly distributed with on described cylinder (1-5) inwall the parallel pectination driving gear (1-5-5) of central axis of some and described cylinder (1-5), the top and bottom of described pectination driving gear (1-5-5) have the last conical surface (1-5-1) and the following conical surface (1-5-2) of symmetry respectively.
6. bending vibration sandwich energy converter cylinder stator according to claim 1 is characterized in that the cross section of described rear end cap (1-1), curved shake piezoelectric ceramic piece (1-3) and flange (1-4) is rectangle or circle.
7. use the ultrasound electric machine of the described bending vibration sandwich energy converter cylinder stator of claim 1, comprise stator (1), rotor assembly, pedestal (4) and even number grip block assembly, it is characterized in that rotor assembly by tape spool rotor (2-1), do not have an axle rotor (2-2), linking bond (2-3), wear-resisting lining ring (2-4), rubber blanket (2-5), disk spring (2-6) and locking nut (2-7) and form; Wherein a tape spool rotor (2-1) and a nothing axle rotor (2-2) are truncated cone-shaped, described tape spool rotor (2-1) and the thin end that do not have an axle rotor (2-2) embed from the above and below of the cylinder (1-5) of stator (1) respectively, described nothing axle rotor (2-2) is fixed on the moment output shaft (2-1-2) of tape spool rotor (2-1) by linking bond (2-3), be fixed with wear-resisting lining ring (2-4) at a tape spool rotor (2-1) and a nothing axle rotor (2-2) respectively with the contacted side of cylinder (1-5), employing rubber blanket (2-5) below not having axle rotor (2-2), disk spring (2-6) and locking nut (2-7) are realized tape spool rotor (2-1) and are not had the pretension of axle rotor (2-2), the quantity of the bending vibration sandwich energy converter that comprises in the quantity of clamp assemblies and the described stator (1) equates, each clamp assemblies is made up of two grip blocks (5-1), each grip block (5-1) is " recessed " font, at the inboard center of the intermediate transverse girder of described grip block (5-1) cone centre (5-2) is installed, two grip blocks (5-1) of each group lay respectively at relatively stator (1) a bending vibration sandwich energy converter flange (1-4) on, fixedly connected down, cone centre (5-2) on described two grip blocks (5-1) embeds respectively in two tapered blind hole (1-4-1) on the described flange (1-4), and following grip block (5-1) is fixed on the pedestal (4).
8. ultrasound electric machine according to claim 7 is characterized in that described wear-resisting lining ring (2-4) adopts Polymer Friction Materials.
9. ultrasound electric machine according to claim 7, the tapering of the upper end conical surface (1-5-1), the lower end conical surface (1-5-2) that it is characterized in that described tape spool rotor (2-1), does not have the side of axle rotor (2-2) and a pectination driving gear (1-5-5) of stator is identical, is that face contacts with the assurance rotor with pectination driving gear (1-5-5).
10. ultrasound electric machine according to claim 7, it is characterized in that described tape spool rotor (2-1) and do not have on the axle rotor (2-2) being evenly distributed with some through holes (2-1-1), described some through holes (2-1-1) are parallel with the moment output shaft (2-1-2) of tape spool rotor (2-1), sandwich converter is fixed on the pedestal by grip block, tape spool rotor and nothing axle rotor embed from the above and below of stator cylinder respectively, and a described nothing axle rotor is fixed on the moment output shaft of tape spool rotor by linking bond.
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| CN2008100644145A CN101262187B (en) | 2008-04-29 | 2008-04-29 | Bending vibration sandwich energy converter cylinder stator and ultrasonic electromotor using this stator |
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| CN102896061B (en) * | 2012-10-15 | 2014-10-08 | 哈尔滨工业大学 | Piezoelectric micro-jet device based on bending vibration sandwich transducer |
| CN105587604A (en) * | 2015-05-08 | 2016-05-18 | 长春工业大学 | Patch sandwich bending vibration compound excitation passive jet propulsion device and driving method thereof |
| CN105587620B (en) * | 2015-05-08 | 2019-05-31 | 长春工业大学 | The active hydraulic jet propulsion system of the sandwich bending vibration complex excitation of patch and its driving method |
| CN104821742A (en) * | 2015-05-25 | 2015-08-05 | 哈尔滨工业大学 | Inner comb-tooth-shaped stator and micro ultrasonic motor using same |
| CN105689248B (en) * | 2016-03-22 | 2018-06-26 | 许龙 | The orthogonal tubular energy converter of composite drive piezoelectricity of cross |
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| EP0401762B1 (en) * | 1989-06-05 | 1996-03-20 | Canon Kabushiki Kaisha | Vibration driven motor |
| CN101022256A (en) * | 2007-03-20 | 2007-08-22 | 哈尔滨工业大学 | Sandwich transducer type longitudinal and bending linear ultrasound motor with frequency-modulating variable-amplitude rod |
| CN101090243A (en) * | 2007-04-30 | 2007-12-19 | 哈尔滨工业大学 | Spherical multi-freedom altrasonic electric machine of single vibrator longtitude bend sandwich changer type |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0401762B1 (en) * | 1989-06-05 | 1996-03-20 | Canon Kabushiki Kaisha | Vibration driven motor |
| CN101022256A (en) * | 2007-03-20 | 2007-08-22 | 哈尔滨工业大学 | Sandwich transducer type longitudinal and bending linear ultrasound motor with frequency-modulating variable-amplitude rod |
| CN101090243A (en) * | 2007-04-30 | 2007-12-19 | 哈尔滨工业大学 | Spherical multi-freedom altrasonic electric machine of single vibrator longtitude bend sandwich changer type |
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