CN101262184B - Vertical bending layer energy converter round disk stator and ultrasonic electromotor using this stator - Google Patents
Vertical bending layer energy converter round disk stator and ultrasonic electromotor using this stator Download PDFInfo
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- CN101262184B CN101262184B CN200810064408XA CN200810064408A CN101262184B CN 101262184 B CN101262184 B CN 101262184B CN 200810064408X A CN200810064408X A CN 200810064408XA CN 200810064408 A CN200810064408 A CN 200810064408A CN 101262184 B CN101262184 B CN 101262184B
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Abstract
The invention discloses a longitudinal bending sandwiched energy converter-typed round disc stator and an ultrasonic motor to which the stator is applied, which relates to the ultrasonic motor field. The invention solves the problems in the existing ultrasonic motor, of complex processing, difficult assembly, and lower mechanical output capacity and controllability of the ultrasonic motor. The longitudinal bending sandwiched converter of the stator is fixed between a round disc at the upper end and a round disc at the lower end, both the front end cover and the back end cover of the longitudinal bending sandwiched energy converter are a quadrangular with a rectangle cross section narrowing down gradually, the small end faces of the front end cover and the back end cover are fixedly connected with the upper round disc and the lower round disc; each piezoelectric ceramic piece is polarized along the thickness direction and four pairs of piezoelectric ceramic pieces are respectively fixed between the front end cover, the back end cover and the flange. Rotors in the ultrasonic motor take the shape of a round disc and are embedded respectively from the top and the bottom of the stator component, a wearable cushion is fixed at the end face, contacting the round disc, of the rotor and the stator is fixed to a base through the flange on the energy converter. The longitudinal bending sandwiched energy converter-typed round disc stator and the ultrasonic motor of the invention has the advantages of simple structure, flexible design, high electromechanical coupling efficiency, output with large torque, stable performance and easy control.
Description
Technical field
The present invention relates to a kind of vertical angle coupling heart energy converter round disk 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 the mechanical fan-out capability of ultrasound electric machine be subjected to serious restriction.For the piezoelectric ultrasonic motor that adopts a plurality of transducer drive, because it is in full accord that each transducer is difficult to guarantee in processes such as processing, stickup and assembling, its vibration characteristics be there are differences, and then cause the distortion of stator surface particle vibration track, reduce the mechanical fan-out capability and the controllability of ultrasound electric machine.In addition, in the robot field, the complicated robot motion of realization is had higher requirement to driving element, and the piezoelectric ultrasonic motor that possesses the motion output of two kinds of different rotary directions can be simplified robot construction in a lot of occasions, the performance of raising robot.
Summary of the invention
The present invention existing adopts that the existing processed complex of piezoelectric ultrasonic motor of a plurality of transducer drive, assembly difficulty are big in order to solve, the mechanical fan-out capability of ultrasound electric machine and the problem that controllability reduces, and has proposed a kind of vertical angle coupling heart energy converter round disk stator and used the ultrasound electric machine of this stator.
Vertical angle coupling heart energy converter round disk stator of the present invention is made up of last end disc, following end disc and vertical angle coupling heart transducer; Vertical angle coupling heart transducer is fixed between end disc and the following end disc, and vertical angle coupling heart transducer is made up of front end housing, rear end cap, two pairs of curved piezoelectric ceramic pieces that shake, two pairs of longitudinal vibration piezoelectric ceramic pieces, flange, pre-mandrel, scale copper electrode and insulating cases; Front end housing and rear end cap are that the cross section is rectangle and tapered four prisms cylinder, and the small end face of front end housing is fixedlyed connected with the lower surface of last end disc, and the small end face of rear end cap is fixedlyed connected with the upper surface of following end disc; The flange both sides are separately installed with a pair of curved shake piezoelectric ceramic piece and a pair of longitudinal vibration piezoelectric ceramic piece, the curved piezoelectric ceramic piece that shakes is installed in the longitudinal vibration piezoelectric ceramic piece outside, each piezoelectric ceramic piece polarizes along thickness direction, the every curved piezoelectric ceramic piece symmetry of shaking is divided into curved piezoelectric ceramic piece and the curved piezoelectric ceramic piece that shakes of right half sheet of shaking of left half sheet, and the curved piezoelectric ceramic piece that shakes of left half sheet is opposite with the polarised direction of the curved piezoelectric ceramic piece that shakes of right half sheet; The polarised direction of the curved piezoelectric ceramic piece that shakes of adjacent two left side half sheets is opposite, and the polarised direction of the curved piezoelectric ceramic piece that shakes of adjacent two right side half sheets is opposite, and the polarised direction of adjacent two longitudinal vibration piezoelectric ceramic pieces is opposite; Adjacently curved shake between the piezoelectric ceramic piece, between the adjacent longitudinal vibration piezoelectric ceramic piece, two adjacent curvedly shake between piezoelectric ceramic piece and the longitudinal vibration piezoelectric ceramic piece, between upside longitudinal vibration piezoelectric ceramic piece and the flange and curved shaking be equiped with the scale copper electrode respectively between piezoelectric ceramic piece and the big end of rear end cap; The center of described flange is processed with square opening; Pre-mandrel jack shaft section cross section is square, and pre-mandrel is connected the employing matched in clearance with flange; Described pre-mandrel two ends are processed with first double-screw bolt and second double-screw bolt respectively, and first double-screw bolt is opposite with the hand of spiral of second double-screw bolt; Pre-mandrel is installed in the inside center of vertical angle coupling heart transducer; The two pairs of curved piezoelectric ceramic pieces that shake, two pairs of longitudinal vibration piezoelectric ceramic pieces, flange and scale copper electrodes first double-screw bolt and the big end of the big end of second double-screw bolt and front end housing and rear end cap by pre-mandrel and pre-mandrel two ends is fastenedly connected and is one, at first double-screw bolt, second double-screw bolt and bend to shake and be fixed with insulating case between piezoelectric ceramic piece, longitudinal vibration piezoelectric ceramic piece, the scale copper electrode.
Use the ultrasound electric machine of vertical angle coupling heart energy converter round disk stator, it is made up of stator module, two identical armature spindle assemblies and middle outer cover; The armature spindle assembly is made up of rotor assembly, upper end pedestal, first set screws, second set screws, bearing, pretension packing ring, the 3rd set screws, end cap; Stator module and rotor assembly are rotationally connected by bearing and the upper end pedestal that is installed on the pedestal of upper end; Stator module is fixed on the pedestal of upper end by the upper surface flange and first set screws, and the upper end of middle outer cover is by second set screws fixedly on the flange of upper surface; Bearing is realized pretension by pretension packing ring, end cap and the 3rd set screws; Described rotor assembly is made up of output shaft, rotor, linking bond, wear-resisting lining ring, rubber blanket, disk spring, locking nut, angular contact ball bearing, door and the 4th screw; Output shaft is connected with rotor by linking bond; The contacted end face of rotor and stator module is fixed with wear-resisting lining ring; Rotor assembly is realized the location by the angular contact ball bearing that is installed on the bearing pedestal of upper surface; Rotor is by rubber blanket, disk spring, locking nut and be installed in door on the output shaft end face and the 4th screw acting in conjunction realizes pretension with angular contact ball bearing; The upper end pedestal is realized the location by the bearing that is installed on the output shaft; The composition structure of two armature spindle assemblies is all identical with mounting means.
Vertical angle coupling heart energy converter round disk 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.The present invention realizes transducer longitudinal vibration natural frequency, curved natural frequency and the curved degeneracy that shakes between the natural frequency of disk of shaking of transducer by area ratio, both sides, front/rear end cap square-section ratio, front/rear end cap length, disk internal diameter size and the disk outside dimension of adjusting two end faces of front/rear end cap.Utilize the extensional vibration of piezoelectric ceramic piece in sandwich converter, to motivate extensional vibration and flexural vibrations, by the control input signal, be implemented in and motivate two amplitudes equate, all differ pi/2 on time and space bending vibration modes response on the end disc, two bending vibration modes responses are superimposed upon and form the row ripple on the end disc; Be implemented in down simultaneously and motivate two amplitudes equate, all differ pi/2 on time and space bending vibration modes response on the end disc, two bending vibration modes responses are superimposed upon down and also form the row ripple on the end disc; Capable ripple direction on capable ripple on the last end disc and the following end disc is opposite.The transducer front end housing links to each other with last end disc, and the transducer rear end cap links to each other with following end disc, has made full use of the vibrational energy that transducer produces, and has improved stator efficient.Integrated configuration by front end housing and last end disc and rear end cap and following end disc, simplify the structure, improved the controllability of disk surface of elastomer particle vibration track, eliminated and adopt alternate manner connection transducer and disk stator vibration waveform adverse effect.Front end housing and rear end cap adopt 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, make motor performance be improved.Adopt single transducer encourage the trip ripple in disk stator, problem when avoiding adopting a plurality of transducer, the problem includes: the inconsistent problem of vibration, the mechanical fan-out capability and the controllability of raising ultrasound electric machine.The thin-walled ring can realize that resiliency supported and vibration isolate, and drops to the influence degree that connects the flexural vibration mode of disk of stator module and pedestal minimum.
The vertical angle coupling heart energy converter round disk stator ultrasound electric machine of use provided by the invention is by motivating the opposite capable ripple of direction on last end disc and following end disc, stator driving gear surface particle produces elliptical trajectory, realize the macroscopic motion output of rotor assembly by the coupling of the friction between driving gear and the rotor, because the capable ripple direction on last end disc and the following end disc is opposite, can realize the power output of two different rotation directions; Rotor surface is bonding wear-resisting lining ring, wear-resisting lining ring adopts the conical surface to contact with stator tooth, has increased contact area, can improve the motor output torque, increases the service life, and effectively eliminates noise; The location of having realized rotor assembly by the stator tooth conical surface and bearing; By be installed in bearing on the output shaft realized pedestal the location, reduce the influence of radial load to the motor output characteristic.
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
The longitudinal section of the ultrasound electric machine of angle coupling heart energy converter round disk stator is indulged in the use that Fig. 1 proposes for the present invention; Fig. 2 is the A-A cutaway view of Fig. 1; Fig. 3 is the front view of the vertical angle coupling heart energy converter round disk stator of the present invention's proposition; The outward appearance front view of the ultrasound electric machine of angle coupling heart energy converter round disk stator is indulged in the use that Fig. 4 proposes for the present invention; Fig. 5 is the piezoelectric ceramic piece polarised direction schematic diagram in the vertical angle coupling heart transducer among Fig. 1; Fig. 6～Fig. 9 is that vertical angle coupling heart energy converter round disk stator shown in Figure 3 adopts amplitude to equate at transducer, frequency is transducer self resonance frequency, phase difference changes schematic diagram (that is: V for the vibration shape in+90 ° next complete vibration period of ac voltage signal excitation situation
1=Acos (2 π t/T), V
2=Asin (2 π t/T), V
0=0, V
1Be the voltage excitation signals of longitudinal vibration piezoelectric ceramic piece, V
2Be the voltage excitation signals of the curved piezoelectric ceramic piece that shakes, A is the driving voltage signal amplitude, and T is the driving voltage signal period, and t is the time), this figure is stator circumferentially deploying figure, is the vibration shape variation schematic diagram of stator nine rank bending vibration modes; Fig. 6 is t=nT (n=0,1,2...) Shi Ke a stator vibration shape schematic diagram; Fig. 7 is t=(n+1/4) T (n=0,1,2...) Shi Ke a stator vibration shape schematic diagram; Fig. 8 is t=(n+1/2) T (n=0,1,2...) Shi Ke a stator vibration shape schematic diagram; Fig. 9 is t=(n+3/4) T (n=0,1,2...) Shi Ke a stator vibration shape schematic diagram.
Embodiment
Embodiment one: present embodiment is indulged angle coupling heart energy converter round disk stator, is made up of last end disc 1-1-1, following end disc 1-7-1 and vertical angle coupling heart transducer 1-9; Vertical angle coupling heart transducer 1-9 is fixed between end disc 1-1-1 and the following end disc 1-7-1, and vertical angle coupling heart transducer 1-9 is made up of front end housing 1-1-4, rear end cap 1-7-4, two couples of curved piezoelectric ceramic piece 1-2 that shake, two couples of longitudinal vibration piezoelectric ceramic piece 1-3, flange 1-4, pre-mandrel 1-5, scale copper electrode 1-6 and insulating case 1-8; Front end housing 1-1-4 and rear end cap 1-7-4 are that the cross section is rectangle and tapered four prisms cylinder, the small end face of front end housing 1-1-4 is fixedlyed connected with the lower surface of last end disc 1-1-1, and the small end face of rear end cap 1-7-4 is fixedlyed connected with the upper surface of following end disc 1-7-1; Flange 1-4 both sides are separately installed with a pair of curved shake piezoelectric ceramic piece 1-2 and a pair of longitudinal vibration piezoelectric ceramic piece 1-3, the curved piezoelectric ceramic piece 1-2 that shakes is installed in the longitudinal vibration piezoelectric ceramic piece 1-3 outside, each piezoelectric ceramic piece polarizes along thickness direction, the every curved piezoelectric ceramic piece 1-2 symmetry of shaking is divided into curved piezoelectric ceramic piece 1-2-1 and the curved piezoelectric ceramic piece 1-2-2 that shakes of right half sheet of shaking of left half sheet, and the curved piezoelectric ceramic piece 1-2-1 that shakes is opposite with the polarised direction of the curved piezoelectric ceramic piece 1-2-2 that shakes of right half sheet for left half sheet; The polarised direction of the curved piezoelectric ceramic piece 1-2-1 that shakes of adjacent two left side half sheets is opposite, and the polarised direction of the curved piezoelectric ceramic piece 1-2-2 that shakes of adjacent two right side half sheets is opposite, and the polarised direction of adjacent two longitudinal vibration piezoelectric ceramic piece 1-3 is opposite; Adjacently curved shake between the piezoelectric ceramic piece 1-2, between the adjacent longitudinal vibration piezoelectric ceramic piece 1-3, two adjacent curvedly shake between piezoelectric ceramic piece 1-2 and the longitudinal vibration piezoelectric ceramic piece 1-3, between upside longitudinal vibration piezoelectric ceramic piece 1-3 and the flange 1-4 and bend to shake and be equiped with scale copper electrode 1-6 respectively between piezoelectric ceramic piece 1-2 and the big end of rear end cap 1-7-4; The center of described flange 1-4 is processed with square opening; The shaft part cross section is square in the middle of the pre-mandrel 1-5, and pre-mandrel 1-5 is connected the employing matched in clearance with flange 1-4; Described pre-mandrel 1-5 two ends are processed with the first double-screw bolt 1-5-1 and the second double-screw bolt 1-5-2 respectively, and the first double-screw bolt 1-5-1 is opposite with the hand of spiral of the second double-screw bolt 1-5-2; Pre-mandrel 1-5 is installed in the inside center of vertical angle coupling heart transducer 1-9; The two couples of curved piezoelectric ceramic piece 1-2 that shake, two couples of longitudinal vibration piezoelectric ceramic piece 1-3, flange 1-4 and the scale copper electrode 1-6 first double-screw bolt 1-5-1 and the big end of the big end of the second double-screw bolt 1-5-2 and front end housing 1-1-4 and rear end cap 1-7-4 by pre-mandrel 1-5 and pre-mandrel 1-5 two ends is fastenedly connected and is one, at the first double-screw bolt 1-5-1, the second double-screw bolt 1-5-2 and bend to shake and be fixed with insulating case 1-8 between piezoelectric ceramic piece 1-2, longitudinal vibration piezoelectric ceramic piece 1-3, the scale copper electrode 1-6.
Referring to Fig. 1, Fig. 2, Fig. 3 and Fig. 5, be the structural representation of vertical angle coupling heart energy converter round disk stator.
The described vertical angle coupling heart energy converter round disk stator of present embodiment adopts the flexural vibrations that realize transducer along the curved piezoelectric ceramic piece that shakes of thickness direction polarization, adopts the extensional vibration that realizes transducer along the longitudinal vibration piezoelectric ceramic piece of thickness direction polarization.Realize the curved degeneracy that shakes between the natural frequency of curved shake natural frequency, transducer longitudinal vibration natural frequency and the disk of transducer by area ratio, both sides, front/rear end cap square-section ratio, front/rear end cap length, disk internal diameter size and the disk outside dimension of adjusting two end faces of front/rear end cap.Front end housing and rear end cap adopt 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, make motor performance be improved.Adopt single transducer encourage the trip ripple in disk stator, problem when avoiding adopting a plurality of transducer, the problem includes: the inconsistent problem of vibration, the mechanical fan-out capability and the controllability of raising ultrasound electric machine.The thin-walled ring can realize that resiliency supported and vibration isolate, and drops to the influence degree that connects the flexural vibration mode of disk of stator module and external member minimum.The transducer employing encourages with the alternating voltage of self resonance frequency same frequency, curved piezoelectric ceramic piece and the longitudinal vibration piezoelectric ceramic piece of shaking encourages respectively, as Fig. 6～shown in Figure 9, curved shake that piezoelectric ceramic piece adopts amplitude to equate with the longitudinal vibration piezoelectric ceramic piece, frequency is transducer self resonance frequency, phase difference is during for+90 ° ac voltage signal excitation, utilizes the extensional vibration of piezoelectric ceramic piece to motivate flexural vibrations and extensional vibration in sandwich converter; And then be implemented in and motivate two amplitudes equate, all differ pi/2 on time and space bending vibration modes response on the end disc, two bending vibration modes responses are superimposed upon to form on the end disc goes ripple; Be implemented in down simultaneously and motivate two amplitudes equate, all differ pi/2 on time and space bending vibration modes response on the end disc, two bending vibration modes responses are superimposed upon down and also form the row ripple on the end disc; Capable ripple direction on capable ripple on the last end disc and the following end disc is opposite; Behind excitation trip ripple, stator driving gear surface particle produces elliptical trajectory, and then realizes the macroscopic motion output of rotor by the coupling of the friction between stator driving gear and the rotor; If adjusting the phase difference of excitation signals is-90 °, can change capable wave line of propagation, finally realize the rotor counter motion.Use bent-shaking sandwich energy converter type collar plate stator ultrasound electric machine provided by the invention is because up and down the capable ripple direction that produces on two disks is opposite, and the output shaft of upper end rotor assembly and lower end rotor assembly is exported with the power that carries out of opposite rotation direction; Rotor surface is bonding wear-resisting lining ring, wear-resisting lining ring adopts the conical surface to contact with stator tooth, has increased contact area, can improve the motor output torque, increases the service life, and effectively eliminates noise.
Embodiment two: in conjunction with Fig. 2, Fig. 3 present embodiment is described, present embodiment is that with embodiment one difference described front end housing 1-1-4 adopts a block of metal materials processing to become end cap-disk integral piece respectively with last end disc 1-1-1, rear end cap 1-7-4 and following end disc 1-7-1.Other composition is identical with embodiment one with connected mode.This processing mode can play the purpose that reduces energy loss, helps improving the controllability of driving gear surface particle vibration track.
Embodiment three: present embodiment is described in conjunction with Fig. 3, present embodiment and embodiment one difference are that the upper surface of the described end disc 1-1-1 of going up and the lower surface of following end disc 1-7-1 are processed with continuous pectination driving gear respectively, on the continuous pectination driving gear of last end disc 1-1-1 upper surface, be processed with upper end conical surface 1-1-5, be processed with upper surface thin-walled ring 1-1-2 and upper surface flange 1-1-3 respectively in the outside of last end disc 1-1-1, the inboard of last end disc 1-1-1 is processed with thin-walled ring 1-1-6 and upper surface bearing pedestal 1-1-7 in the upper surface respectively; On the continuous pectination driving gear of following end disc 1-7-1 lower surface, be processed with lower end conical surface 1-7-5, the outside at following end disc 1-7-1 is processed with lower surface thin-walled ring 1-7-2 and lower surface flange 1-7-3 respectively, and the inboard of following end disc 1-7-1 is processed with thin-walled ring 1-7-6 and lower surface bearing pedestal 1-7-7 in the lower surface respectively.Other composition is identical with embodiment one with connected mode.The continuous pectination driving gear that present embodiment increases helps amplifying stator surface particle vibration trajectory amplitudes, and upper end conical surface 1-1-5 and lower end conical surface 1-7-5 help increasing the contact area between stator and the rotor, improves output torque.All thin-walled rings realize that jointly resiliency supported and vibration isolate, and drop to the influence degree that connects the flexural vibration mode of last end disc 1-1-1 and following end disc 1-7-1 of stator module and external member minimum.
Embodiment four: in conjunction with Fig. 1, Fig. 2 and Fig. 4 present embodiment is described, present embodiment and embodiment one difference are that the cross section of described curved shake piezoelectric ceramic piece 1-2, longitudinal vibration piezoelectric ceramic piece 1-3 and flange 1-4 is rectangle or circle.Other composition is identical with embodiment one with connected mode.The curved piezoelectric ceramic piece 1-2 that shakes, longitudinal vibration piezoelectric ceramic piece 1-3 in the present embodiment and the shape of flange 1-4 can simplified processing process.
Embodiment five: in conjunction with Fig. 1, Fig. 4 present embodiment is described, present embodiment is used the ultrasound electric machine of vertical angle coupling heart energy converter round disk stator, and it is made up of stator module, two identical armature spindle assemblies and middle outer cover 4; The armature spindle assembly is made up of rotor assembly 2, upper end pedestal 5, first set screws 8, second set screws 9, bearing 10, pretension packing ring 11, the 3rd set screws 12, end cap 13; Stator module and rotor assembly 2 are rotationally connected with upper end pedestal 5 by the bearing 10 that is installed on the pedestal 5 of upper end; Stator module is fixed on the pedestal 5 of upper end by the upper surface flange 1-1-3 and first set screws 8, and the upper end of middle outer cover 4 is by second set screws 9 fixedly on the upper surface flange 1-1-3; Bearing 10 is realized pretension by pretension packing ring 11, end cap 13 and the 3rd set screws 12; Described rotor assembly 2 is made up of output shaft 2-1, rotor 2-2, linking bond 2-3, wear-resisting lining ring 2-4, rubber blanket 2-5, disk spring 2-6, locking nut 2-7, angular contact ball bearing 2-8, door 2-9 and the 4th screw 2-10; Output shaft 2-1 is connected with rotor 2-2 by linking bond 2-3; The contacted end face of rotor 2-2 and stator module is fixed with wear-resisting lining ring 2-4; Rotor assembly 2 is realized the location by the angular contact ball bearing 2-8 that is installed on the bearing pedestal 1-1-7 of upper surface; Rotor 2-2 is by rubber blanket 2-5, disk spring 2-6, locking nut 2-7 and be installed in door 2-9 on the output shaft 2-1 end face and the 4th screw 2-10 acting in conjunction realizes pretension with angular contact ball bearing 2-8; Upper end pedestal 5 is realized the location by the bearing 10 that is installed on the output shaft 2-1; The composition structure of two armature spindle assemblies is all identical with mounting means.
Embodiment six: present embodiment is described in conjunction with Fig. 1, present embodiment and embodiment five differences are that wear-resisting lining ring 2-4 adopts Polymer Friction Materials, and can be fixed on rotor 2-2 and the contacted end face of stator module by the mode of pasting.Other composition is identical with embodiment five with connected mode.
Embodiment seven: in conjunction with Fig. 1 present embodiment is described, present embodiment and embodiment five differences are that the tapering of upper end conical surface 1-1-5 of last end disc pectination driving gear of the lower surface of described rotor 2-2 and vertical angle coupling heart energy converter round disk stator is identical.Other composition is identical with embodiment five with connected mode.Realize the location of rotor assembly and increased contact area by cone match.
Embodiment eight: in conjunction with Fig. 1, Fig. 4 present embodiment is described, present embodiment and embodiment five differences are that output shaft 2-1 upper end is processed with keyway 2-1-1.Other composition is identical with embodiment five with connected mode.Keyway 2-1-1 is used to realize power output.
Embodiment nine: in conjunction with Fig. 1 present embodiment is described, present embodiment and embodiment five differences are that the outside of pedestal 5 upper surfaces, described upper end is processed with screwed hole 5-1.Other composition is identical with embodiment five with connected mode.Screwed hole 5-1 is used for realizing the installation of motor in mechanical system.
Claims (9)
1. vertical angle coupling heart energy converter round disk stator is made up of last end disc (1-1-1), following end disc (1-7-1) and vertical angle coupling heart transducer (1-9); Vertical angle coupling heart transducer (1-9) is fixed between end disc (1-1-1) and the following end disc (1-7-1), it is characterized in that indulging angle coupling heart transducer (1-9) and is made up of front end housing (1-1-4), rear end cap (1-7-4), two pairs of curved piezoelectric ceramic pieces (1-2) that shake, two pairs of longitudinal vibration piezoelectric ceramic pieces (1-3), flange (1-4), pre-mandrel (1-5), scale copper electrode (1-6) and insulating cases (1-8); Front end housing (1-1-4) and rear end cap (1-7-4) are that the cross section is rectangle and tapered four prisms cylinder, the small end face of front end housing (1-1-4) is fixedlyed connected with the lower surface of last end disc (1-1-1), and the small end face of rear end cap (1-7-4) is fixedlyed connected with the upper surface of following end disc (1-7-1); Flange (1-4) both sides are separately installed with a pair of curved shake piezoelectric ceramic piece (1-2) and a pair of longitudinal vibration piezoelectric ceramic piece (1-3), the curved piezoelectric ceramic piece (1-2) that shakes is installed in longitudinal vibration piezoelectric ceramic piece (1-3) outside, each piezoelectric ceramic piece polarizes along thickness direction, every curved piezoelectric ceramic piece (1-2) symmetry of shaking is divided into curved piezoelectric ceramic piece (1-2-1) and the curved piezoelectric ceramic piece (1-2-2) that shakes of right half sheet of shaking of left half sheet, and the curved piezoelectric ceramic piece (1-2-1) that shakes of left half sheet is opposite with the polarised direction of the curved piezoelectric ceramic piece (1-2-2) that shakes of right half sheet; The polarised direction of the curved piezoelectric ceramic piece (1-2-1) that shakes of adjacent two left side half sheets is opposite, and the polarised direction of the curved piezoelectric ceramic piece (1-2-2) that shakes of adjacent two right side half sheets is opposite, and the polarised direction of adjacent two longitudinal vibration piezoelectric ceramic pieces (1-3) is opposite; Adjacently curved shake between the piezoelectric ceramic piece (1-2), between the adjacent longitudinal vibration piezoelectric ceramic piece (1-3), between two adjacent curved piezoelectric ceramic pieces that shake (1-2) and longitudinal vibration piezoelectric ceramic piece (1-3), between upside longitudinal vibration piezoelectric ceramic piece (1-3) and the flange (1-4) and curved shake piezoelectric ceramic piece (1-2) and rear end cap (1-7-4) be equiped with scale copper electrode (1-6) respectively between holding greatly; The center of described flange (1-4) is processed with square opening; The shaft part cross section is square in the middle of the pre-mandrel (1-5), and pre-mandrel (1-5) is connected the employing matched in clearance with flange (1-4); Described pre-mandrel (1-5) two ends are processed with first double-screw bolt (1-5-1) and second double-screw bolt (1-5-2) respectively, and first double-screw bolt (1-5-1) is opposite with the hand of spiral of second double-screw bolt (1-5-2); Pre-mandrel (1-5) is installed in the inside center of vertical angle coupling heart transducer (1-9); Two pairs curved shake piezoelectric ceramic piece (1-2), two pairs of longitudinal vibration piezoelectric ceramic pieces (1-3), flange (1-4) and scale copper electrode (1-6) by pre-mandrel (1-5) and in advance the big end of the big end of first double-screw bolt (1-5-1) at mandrel (1-5) two ends and second double-screw bolt (1-5-2) and front end housing (1-1-4) and rear end cap (1-7-4) be fastenedly connected and be one, at first double-screw bolt (1-5-1), second double-screw bolt (1-5-2) and bend to shake and be fixed with insulating case (1-8) between piezoelectric ceramic piece (1-2), longitudinal vibration piezoelectric ceramic piece (1-3), the scale copper electrode (1-6).
2. vertical angle coupling heart energy converter round disk stator according to claim 1 is characterized in that described front end housing (1-1-4) adopts a block of metal materials processing to become end cap-disk integral piece respectively with last end disc (1-1-1), rear end cap (1-7-4) and following end disc (1-7-1).
3. vertical angle coupling heart energy converter round disk stator according to claim 1, it is characterized in that the upper surface of described upward end disc (1-1-1) and the lower surface of following end disc (1-7-1) are processed with continuous pectination driving gear respectively, on the continuous pectination driving gear of last end disc (1-1-1) upper surface, be processed with the upper end conical surface (1-1-5), be processed with upper surface thin-walled ring (1-1-2) and upper surface flange (1-1-3) respectively in the outside of last end disc (1-1-1), the inboard of last end disc (1-1-1) is processed with thin-walled ring (1-1-6) and upper surface bearing pedestal (1-1-7) in the upper surface respectively; On the continuous pectination driving gear of following end disc (1-7-1) lower surface, be processed with the lower end conical surface (1-7-5), the outside at following end disc (1-7-1) is processed with lower surface thin-walled ring (1-7-2) and lower surface flange (1-7-3) respectively, and the inboard of following end disc (1-7-1) is processed with thin-walled ring (1-7-6) and lower surface bearing pedestal (1-7-7) in the lower surface respectively.
4. vertical angle coupling heart energy converter round disk stator according to claim 1 is characterized in that the cross section of described curved shake piezoelectric ceramic piece (1-2), longitudinal vibration piezoelectric ceramic piece (1-3) and flange (1-4) is rectangle or circle.
5. use the ultrasound electric machine of vertical angle coupling heart energy converter round disk stator, it is made up of stator module, two identical armature spindle assemblies and middle outer cover (4); The armature spindle assembly is made up of rotor assembly (2), upper end pedestal (5), first set screws (8), second set screws (9), bearing (10), pretension packing ring (11), the 3rd set screws (12), end cap (13); Stator module and rotor assembly (2) are rotationally connected with upper end pedestal (5) by the bearing (10) that is installed on the upper end pedestal (5); Stator module is fixed on upper end pedestal (5) by upper surface flange (1-1-3) and first set screws (8), and the upper end of middle outer cover (4) is by second set screws (9) fixedly on the upper surface flange (1-1-3); Bearing (10) is realized pretension by pretension packing ring (11), end cap (13) and the 3rd set screws (12); It is characterized in that described rotor assembly (2) is made up of output shaft (2-1), rotor (2-2), linking bond (2-3), wear-resisting lining ring (2-4), rubber blanket (2-5), disk spring (2-6), locking nut (2-7), angular contact ball bearing (2-8), door (2-9) and the 4th screw (2-10); Output shaft (2-1) is connected with rotor (2-2) by linking bond (2-3); Rotor (2-2) is fixed with wear-resisting lining ring (2-4) with the contacted end face of stator module; Rotor assembly (2) is realized the location by the angular contact ball bearing (2-8) that is installed on the upper surface bearing pedestal (1-1-7); Rotor (2-2) is by rubber blanket (2-5), disk spring (2-6), locking nut (2-7) and be installed in door (2-9) on output shaft (2-1) end face and the 4th screw (2-10) acting in conjunction realizes pretension with angular contact ball bearing (2-8); Upper end pedestal (5) is realized the location by the bearing (10) that is installed on the output shaft (2-1); The composition structure of two armature spindle assemblies is all identical with mounting means.
6. the ultrasound electric machine of the vertical angle coupling heart energy converter round disk stator of use according to claim 5, it is characterized in that described wear-resisting lining ring (2-4) adopts Polymer Friction Materials, and be fixed on rotor (2-2) and the contacted end face of stator module by the mode of pasting.
7. the ultrasound electric machine of the vertical angle coupling heart energy converter round disk stator of use according to claim 5 is characterized in that the lower surface of described rotor (2-2) is identical with the tapering of the upper end conical surface (1-1-5) of the last end disc pectination driving gear of vertical angle coupling heart energy converter round disk stator.
8. the ultrasound electric machine of the vertical angle coupling heart energy converter round disk stator of use according to claim 5 is characterized in that described output shaft (2-1) upper end is processed with keyway (2-1-1).
9. the ultrasound electric machine of the vertical angle coupling heart energy converter round disk stator of use according to claim 5 is characterized in that the outside of described upper end pedestal (5) upper surface is processed with screwed hole (5-1).
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| CN200810064408XA CN101262184B (en) | 2008-04-29 | 2008-04-29 | Vertical bending layer energy converter round disk stator and ultrasonic electromotor using this stator |
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| CN200810064408XA CN101262184B (en) | 2008-04-29 | 2008-04-29 | Vertical bending layer energy converter round disk stator and ultrasonic electromotor using this stator |
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| CN101262184B true CN101262184B (en) | 2010-07-14 |
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Cited By (1)
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| CN102767563A (en) * | 2012-07-11 | 2012-11-07 | 清华大学 | Rolling auxiliary bearing and auxiliary bearing system |
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