CN206422711U - A kind of rod-type paster longitudinal-torsional compound ultrasonic motor - Google Patents
A kind of rod-type paster longitudinal-torsional compound ultrasonic motor Download PDFInfo
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- CN206422711U CN206422711U CN201621485200.1U CN201621485200U CN206422711U CN 206422711 U CN206422711 U CN 206422711U CN 201621485200 U CN201621485200 U CN 201621485200U CN 206422711 U CN206422711 U CN 206422711U
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Abstract
The utility model is related to a kind of rod-type paster longitudinal-torsional compound ultrasonic motor, including stator and rotor assembly, wherein, rotor assembly includes the first precompressed rotor-support-foundation system, the second precompressed rotor-support-foundation system and rotary shaft, the rectangle plane of six formed objects is cut out on the excircle in the middle of metallic matrix, one of axially distributed groove is cut out respectively every two rectangle planes, and the position of groove is arranged on the junction of two neighboring plane, three road grooves are set altogether, and the two ends of strip grooving are circular hole；Two rectangular piezoelectric ceramic pieces based on d31 effects are pasted on two rectangle planes between every twice groove respectively, an exciting unit is formed；Meanwhile, two annular grooves are offered respectively close to end in stator both sides, for adjusting torsional frequency；Not only cost is low for the utility model, and processing technology is simple, and assembly process is simple, and motor stator structure is simpler, workable, and extensional vibration and torsional frequency uniformity are preferable.
Description
Technical field
The utility model is related to a kind of rod-type paster longitudinal-torsional compound ultrasonic motor, belongs to ultrasound electric machine field.
Background technology
The research of longitudinal-torsional compound ultrasonic motor can substantially trace back to the end of the eighties in 20th century, up to the present, and it is tied
Structure species is as many as tens kinds.Longitudinal-torsional compound ultrasonic motor contains two PZT oscillators --- longitudinal vibration and torsion oscillator,
Vertical, torsion oscillator inspires two mutually perpendicular vibrations respectively, and both vibrations can be adjusted individually, not coupled mutually.Longitrorse is answered
Mould assembly ultrasound electric machine is compared with other types of ultrasound electric machine, because with output torque is especially big, controllability is strong, rotating characteristic
Unanimously, the features such as low-speed stability is good, dynamic response performance is good and one of the focus studied as recent domestic.Nearly tens
People propose various longitudinal-torsional compound ultrasonic motor structures to two kinds of research since year.1994, Ueha with
Structure of the sandwich piezoelectric stator structure substitution with stacked piezoelectric stator have developed a diameter of 80mm longitrorse multimode
State type ultrasound electric machine；Since 1992, the Tomikawa of Japanese chevron university carried out substantial amounts of to tests of longitudinaltorsionaultrasonic ultrasonic motors
Research.According to the design feature of motor, the motor that oneself is developed is divided into multi-modal stator type and single mode stator type two by he
Class；2000 or so, Tsujino was studied oblique slot type mode conversion type ultrasound electric machine, and the motor only needs one group of pressure
Electric tachometer indicator is encouraged, but can only realize single direction rotation.
At present, existing Hybrid transducer motor has the following disadvantages：
1st, the twisting vibration of stator base has two kinds of energisation modes, and one is by the torsional oscillation piezoelectric ceramics production based on d15 effects
It is raw, but this torsional oscillation piezoelectric ceramic process is complicated, and processing difficulties, cost is high；Two be by the longitudinal vibration piezoelectric ceramics based on d33 effects
The extensional vibration of excitation is converted and obtained, and which needs to design corresponding mode converter, complicated, and can only realize list
To rotation.
2nd, longitudinal-torsional compound ultrasonic motor is complicated, assembly process is more, and easily produces rigging error, causes longitudinal direction
Vibration and torsional frequency are inconsistent.
Utility model content
The utility model provides a kind of rod-type paster longitudinal-torsional compound ultrasonic motor, while needing to adjust the width of annular groove
And depth, and the width of strip groove, the radius of two ends circular hole come reach regulation longitrorse vibration frequency uniformity purpose, not only
Cost is low, and processing technology is simple, and assembly process is simple, and motor stator structure is simpler, workable, it is easy to real below
Test structure to do over again amendment, extensional vibration and torsional frequency uniformity are preferable.
The utility model solves the technical scheme that its technical problem used：
A kind of rod-type paster longitudinal-torsional compound ultrasonic motor, including stator and rotor assembly, wherein, rotor assembly includes the
One precompressed rotor-support-foundation system, the second precompressed rotor-support-foundation system and rotary shaft, the first precompressed rotor-support-foundation system, the second precompressed rotor-support-foundation system difference
Stator module two ends are laid in, and in mirror alignment；First precompressed rotor-support-foundation system, the second precompressed rotor-support-foundation system and stator are coaxial
On the rotating shaft, the stator is open circles tubulose metallic matrix, and six are cut out on the excircle in the middle of metallic matrix for socket
The rectangle plane of formed objects, one of axially distributed groove is cut out every two rectangle planes respectively, and the position of groove is set
In the junction of two neighboring plane, three road grooves are set altogether, and the two ends of strip grooving are circular hole；Between every twice groove
Two rectangular piezoelectric ceramic pieces based on d31 effects are pasted on two rectangle planes respectively, an exciting unit is formed；Meanwhile,
Two annular grooves are offered respectively close to end in stator both sides, for adjusting torsional frequency；Stator two ends are set simultaneously
It is equipped with bearing hole, bearing hole and is laid with bearing respectively；
As it is of the present utility model further preferably, the first precompressed rotor-support-foundation system, the second precompressed rotor-support-foundation system include turn
Son, friction material, silicon rubber spring, gland and locking nut, wherein, the side of rotor and stator contact is pasted with friction material
Material, silicon rubber spring, gland, locking nut are successively set on the opposite side of rotor, and rotor, silicon rubber spring, gland cover
Connect on the rotating shaft, silicon rubber spring, gland are pressed on rotor by coupling between locking nut and rotary shaft；
As it is of the present utility model further preferably, six formed objects are cut out on the excircle in the middle of metallic matrix
Rectangle plane, six rectangle planes are uniformly distributed in 120 degree two-by-two；Uniformly three strips are offered on the metallic matrix of stator
Shape grooving, the two ends of strip grooving are provided with two rectangle planes, strip between circular hole, and each two strip grooving
Grooving is located at the junction of two neighboring rectangle plane, meanwhile, offer two annulars respectively close to end in stator both sides
Groove；
As of the present utility model further preferred, respectively along fixed on two rectangle planes between described every twice groove
It is sub axially to paste two rectangular piezoelectric ceramic pieces based on d31 effects, form an exciting unit, the piezoelectricity of all exciting units
The polarised direction of potsherd is directed to the center of circle or away from the center of circle；Divide between two rectangular piezoelectric ceramic pieces of each exciting unit
Not Shi Jia phase difference for 90 ° sinusoidal excitation voltage or cosine driving voltage, for inspire unit symmetric vibration mode and
Antisymmetric vibration mode, three groups of exciting units are eventually exhibited as the 1 rank longitudinal direction of stator body along the circumferential synthetic incentive effect of stator
Mode of oscillation and 2 rank torsion modes；
As it is of the present utility model further preferably, the bearing hole opened up respectively at the two ends of stator be staged
It is laid with respectively in bearing hole, bearing hole on the first journal bearing, the second journal bearing, two end faces of stator and offers uniform point
The grooving of cloth.
By above technical scheme, relative to prior art, the utility model has the advantages that：
Stator of the present utility model is open circles tubulose metallic matrix, and six are cut out on the excircle in the middle of metallic matrix
The rectangle plane of formed objects, pastes the rectangular piezoelectric ceramic piece based on d31 effects respectively, for needed for inspiring stator base
1 rank longitudinal vibration mode and 2 rank torsion modes, so as to avoid using the torsional oscillation potsherd based on d15 effects, motor is fixed
3 strip groovings are evenly distributed with the middle of sub, the two ends of strip grooving are circular hole, meanwhile, in stator both sides close to end
Annular groove is offered at face respectively, and each strip grooving is located at two neighboring rectangle plane middle, for regulation motor
Torsional frequency, can be conveniently adjusted extensional vibration and the torsional frequency uniformity of motor.
Brief description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is the stereogram of preferred embodiment of the present utility model；
Fig. 2 is the sectional view of preferred embodiment of the present utility model；
Fig. 3 be the utility model proposes paster longitudinal-torsional compound ultrasonic motor operation mode, wherein a is fixed to be distributed in
The 2 rank torsional oscillation mode vibration shapes in son, 1 rank longitudinal vibration Mode Shapes of the b for distribution in the stator；
Fig. 4 is the piezoelectric ceramics polarization distribution and electric excitation conceptual scheme of preferred embodiment of the present utility model.
In figure：1 is rotary shaft, and 2 be locking nut, and 3 be gland, and 4 be rotor, and 5 be stator, and 6 be annular groove, and 7 be strip
Shape grooving, 8 be rectangular piezoelectric ceramic piece, and 9 be grooving, and 10 be bearing, and 11 be silicon rubber spring, and 12 be friction material.
Embodiment
The utility model is described in further detail presently in connection with accompanying drawing.These accompanying drawings are simplified schematic diagram,
Only illustrate basic structure of the present utility model in a schematic way, therefore it only shows the composition relevant with the utility model.
As Figure 1-Figure 2, a kind of rod-type paster longitudinal-torsional compound ultrasonic motor of the present utility model, including the He of stator 5
Rotor assembly, wherein, rotor assembly includes the first precompressed rotor-support-foundation system, the second precompressed rotor-support-foundation system and rotary shaft 1, the first precompressed
Rotor-support-foundation system, the second precompressed rotor-support-foundation system are laid in stator module two ends respectively, and in mirror alignment；First precompressed rotor system
System, the second precompressed rotor-support-foundation system and stator are coaxially socketed in rotary shaft, and the stator is open circles tubulose metallic matrix,
The rectangle plane of six formed objects is cut out on excircle in the middle of metallic matrix, is cut out respectively together every two rectangle planes
Axially distributed groove, and the position of groove is arranged on the junction of two neighboring plane, and three road grooves, strip grooving 7 are set altogether
Two ends be circular hole；Two rectangle pressures based on d31 effects are pasted on two rectangle planes between every twice groove respectively
Electroceramics piece 8, forms an exciting unit；Meanwhile, offer two annular grooves 6 respectively close to end in stator both sides, use
In regulation torsional frequency；Stator two ends are provided with bearing hole, bearing hole and are laid with bearing 10 respectively simultaneously.；
As it is of the present utility model further preferably, the first precompressed rotor-support-foundation system, the second precompressed rotor-support-foundation system include turn
Son 4, friction material 12, silicon rubber spring 11, gland 3 and locking nut 2, wherein, the side of rotor and stator contact is pasted with
Friction material, silicon rubber spring, gland, locking nut are successively set on the opposite side of rotor, and rotor, silicon rubber spring, pressure
Lid is socketed on the rotating shaft, and silicon rubber spring, gland are pressed on rotor by coupling between locking nut and rotary shaft；
As it is of the present utility model further preferably, six formed objects are cut out on the excircle in the middle of metallic matrix
Rectangle plane, six rectangle planes are uniformly distributed in 120 degree two-by-two；Uniformly three strips are offered on the metallic matrix of stator
Shape grooving, the two ends of strip grooving are provided with two rectangle planes, strip between circular hole, and each two strip grooving
Grooving is located at the junction of two neighboring rectangle plane, meanwhile, offer two annulars respectively close to end in stator both sides
Groove；
As of the present utility model further preferred, respectively along fixed on two rectangle planes between described every twice groove
It is sub axially to paste two rectangular piezoelectric ceramic pieces based on d31 effects, form an exciting unit, the piezoelectricity of all exciting units
The polarised direction of potsherd is directed to the center of circle or away from the center of circle；Divide between two rectangular piezoelectric ceramic pieces of each exciting unit
Not Shi Jia phase difference for 90 ° sinusoidal excitation voltage or cosine driving voltage, for inspire unit symmetric vibration mode and
Antisymmetric vibration mode, three groups of exciting units are eventually exhibited as the 1 rank longitudinal direction of stator body along the circumferential synthetic incentive effect of stator
Mode of oscillation and 2 rank torsion modes；
Shown in Fig. 3-Fig. 4, a kind of piezoelectric ceramics pole of rod-type paster longitudinal-torsional compound ultrasonic motor described in the utility model
Change arrangement and electric excitation method thereof is：Polarised direction is pasted in each plane of the rectangle plane of six formed objects and points to stator circle
The rectangular piezoelectric ceramic piece of the heart, applies the sinusoidal excitation signal that phase is φ on rectangular piezoelectric ceramic piece, motivates longitudinal vibration rib
1 rank longitudinal vibration mode of plate, so as to induce 1 rank longitudinal vibration mode of motor stator；Polarization side is pasted in each plane
To the rectangular piezoelectric ceramic piece for pointing to the stator center of circle, apply same frequency and the sinusoidal excitation of phase ± 90 ° on piezoelectric ceramics
Signal, motivates 1 rank flexural vibration mode of torsional oscillation floor, so as to induce 2 rank torsion modes of motor stator, stator
Middle time and spatially phase difference are that the synthesis of 90 ° of 1 rank longitudinal vibration mode and 2 rank torsion modes can make stator
End face, which is given directions, produces elliptic motion, for driving rotor to rotate.
As it is of the present utility model further preferably, the bearing hole opened up respectively at the two ends of stator be staged
It is laid with respectively in bearing hole, bearing hole on the first journal bearing, the second journal bearing, two end faces of stator and offers uniform point
The grooving 9 of cloth.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein（Including technology art
Language and scientific terminology）With the general understanding identical meaning with the those of ordinary skill in the application art.Should also
Understand, those terms defined in such as general dictionary, which should be understood that, to be had and the meaning in the context of prior art
The consistent meaning of justice, and unless defined as here, will not be explained with idealization or excessively formal implication.
The implication of "and/or" described herein refers to that the simultaneous situation of respective individualism or both is wrapped
Including including.
The implication of " connection " described herein can be that being directly connected between part can also be passed through between part
Other parts are indirectly connected with.
Using it is above-mentioned according to desirable embodiment of the present utility model as enlightenment, pass through above-mentioned description, related work people
Member can carry out various changes and amendments in the range of without departing from this utility model technological thought completely.This reality
The content on specification is not limited to new technical scope, it is necessary to its technology is determined according to right
Property scope.
Claims (5)
1. a kind of rod-type paster longitudinal-torsional compound ultrasonic motor, including stator and rotor assembly, wherein, rotor assembly includes first
Precompressed rotor-support-foundation system, the second precompressed rotor-support-foundation system and rotary shaft, the first precompressed rotor-support-foundation system, the second precompressed rotor-support-foundation system difference cloth
Stator module two ends are located at, and in mirror alignment；First precompressed rotor-support-foundation system, the second precompressed rotor-support-foundation system and the equal coaxial sleeve of stator
Connect on the rotating shaft, it is characterised in that：The stator is open circles tubulose metallic matrix, on the excircle in the middle of metallic matrix
The rectangle plane of six formed objects is cut out, one of axially distributed groove is cut out respectively every two rectangle planes, and groove
Position is arranged on the junction of two neighboring plane, three road grooves is set altogether, the two ends of strip grooving are circular hole；In every twice
Two rectangular piezoelectric ceramic pieces based on d31 effects are pasted on two rectangle planes between groove respectively, an excitation are formed single
Member；Meanwhile, two annular grooves are offered respectively close to end in stator both sides, for adjusting torsional frequency；Stator two
End is provided with bearing hole, bearing hole and is laid with bearing respectively simultaneously.
2. rod-type paster longitudinal-torsional compound ultrasonic motor according to claim 1, it is characterised in that：First precompressed rotor system
System, the second precompressed rotor-support-foundation system include rotor, friction material, silicon rubber spring, gland and locking nut, wherein, rotor with
The side of stator contact is pasted with friction material, and silicon rubber spring, gland, locking nut are successively set on the opposite side of rotor,
And rotor, silicon rubber spring, gland are socketed on the rotating shaft, silicon rubber spring, gland by locking nut and rotary shaft it
Between connection be pressed on rotor.
3. rod-type paster longitudinal-torsional compound ultrasonic motor according to claim 1, it is characterised in that：In the middle of metallic matrix
Excircle on cut out the rectangle planes of six formed objects, six rectangle planes are uniformly distributed in 120 degree two-by-two；In stator
Uniform on metallic matrix to offer three strip groovings, the two ends of strip grooving are circular hole, and each two strip is cut
Provided with two rectangle planes between groove, strip grooving is located at the junction of two neighboring rectangle plane, meanwhile, in stator both sides
Two annular grooves are offered respectively close to end.
4. rod-type paster longitudinal-torsional compound ultrasonic motor according to claim 1, it is characterised in that：Between every twice groove
Two rectangle planes on respectively along stator shaft orientation paste two rectangular piezoelectric ceramic pieces based on d31 effects, formed one swash
Unit is encouraged, the polarised direction of the piezoelectric ceramic piece of all exciting units is directed to the center of circle or away from the center of circle；Each exciting unit
Two rectangular piezoelectric ceramic pieces between apply respectively phase difference be 90 ° sinusoidal excitation voltage or cosine driving voltage, be used for
Inspire the symmetric vibration mode and antisymmetric vibration mode of unit, synthetic incentive effect of three groups of exciting units along stator circumference
It is eventually exhibited as the 1 rank longitudinal vibration mode and 2 rank torsion modes of stator body.
5. rod-type paster longitudinal-torsional compound ultrasonic motor according to claim 1, it is characterised in that：It is described in stator
The bearing hole that two ends are opened up respectively is to be laid with the first journal bearing, the second radial axle respectively in stepped shaft bearing bore, bearing hole
Hold, equally distributed grooving is offered on two end faces of stator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621485200.1U CN206422711U (en) | 2016-12-31 | 2016-12-31 | A kind of rod-type paster longitudinal-torsional compound ultrasonic motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621485200.1U CN206422711U (en) | 2016-12-31 | 2016-12-31 | A kind of rod-type paster longitudinal-torsional compound ultrasonic motor |
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| CN206422711U true CN206422711U (en) | 2017-08-18 |
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| CN201621485200.1U Expired - Fee Related CN206422711U (en) | 2016-12-31 | 2016-12-31 | A kind of rod-type paster longitudinal-torsional compound ultrasonic motor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107070299A (en) * | 2016-12-31 | 2017-08-18 | 南京航空航天大学 | A kind of rod-type paster longitudinal-torsional compound ultrasonic motor |
| CN108969032A (en) * | 2018-07-09 | 2018-12-11 | 南京航空航天大学 | A kind of magnetic-type laparoscope mechanism of straight line-rotation-oscillation Three Degree Of Freedom |
| CN112290828A (en) * | 2020-10-30 | 2021-01-29 | 河南师范大学 | Ultrasonic motor with axial preloading |
-
2016
- 2016-12-31 CN CN201621485200.1U patent/CN206422711U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107070299A (en) * | 2016-12-31 | 2017-08-18 | 南京航空航天大学 | A kind of rod-type paster longitudinal-torsional compound ultrasonic motor |
| CN107070299B (en) * | 2016-12-31 | 2024-03-19 | 南京航空航天大学 | Rod-type paster longitudinal-torsion composite ultrasonic motor |
| CN108969032A (en) * | 2018-07-09 | 2018-12-11 | 南京航空航天大学 | A kind of magnetic-type laparoscope mechanism of straight line-rotation-oscillation Three Degree Of Freedom |
| CN108969032B (en) * | 2018-07-09 | 2020-11-24 | 南京航空航天大学 | Straight line-rotation-swing three-degree-of-freedom magnetic attraction type laparoscope mechanism |
| CN112290828A (en) * | 2020-10-30 | 2021-01-29 | 河南师范大学 | Ultrasonic motor with axial preloading |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170818 Termination date: 20201231 |