CN106936333A - 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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- CN106936333A CN106936333A CN201611266917.1A CN201611266917A CN106936333A CN 106936333 A CN106936333 A CN 106936333A CN 201611266917 A CN201611266917 A CN 201611266917A CN 106936333 A CN106936333 A CN 106936333A
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- 150000001875 compounds Chemical class 0.000 title claims abstract description 19
- 239000000919 ceramic Substances 0.000 claims abstract description 21
- 239000011159 matrix material Substances 0.000 claims abstract description 16
- 230000000694 effects Effects 0.000 claims abstract description 15
- 210000004907 gland Anatomy 0.000 claims description 13
- 229920002379 silicone rubber Polymers 0.000 claims description 13
- 239000002783 friction material Substances 0.000 claims description 7
- 230000005284 excitation Effects 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims 1
- 238000005457 optimization Methods 0.000 description 8
- 230000010355 oscillation Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 238000002604 ultrasonography Methods 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 241000219000 Populus Species 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/10—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing rotary motion, e.g. rotary motors
- H02N2/103—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing rotary motion, e.g. rotary motors by pressing one or more vibrators against the rotor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/10—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing rotary motion, e.g. rotary motors
- H02N2/12—Constructional details
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- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
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, 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;Stator is open circles tubulose metallic matrix, six rectangle planes of formed objects are cut out on excircle in the middle of metallic matrix, one 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 groove are provided with the semicircle perforate equal with groove width;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;Motor stator structure of the present invention is simpler, and preferably, output torque is big for extensional vibration and torsional frequency uniformity, has its irreplaceable advantage in the occasion that bulk is limited.
Description
Technical field
The present invention relates to a kind of rod-type paster longitudinal-torsional compound ultrasonic motor, belong 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, its knot
Structure species is as many as tens kinds.Traditional 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.It is vertical
Compound ultrasonic motor is turned round compared with other types of ultrasound electric machine, because having that output torque is especially big, controllability by force, rotating
The features such as characteristic is consistent, low-speed stability is good, dynamic response performance is good and turn into one of focus of recent domestic research.Closely
Researcher proposes various longitudinal-torsional compound ultrasonic motor structures over 20 years.1994, Ueha was with sandwich
The multi-modal type of longitrorse that piezoelectric stator structure structure of the substitution with stacked piezoelectric stator have developed an a diameter of 80mm surpasses
Acoustic-electric machine;Since 1992, the Tomikawa of Japanese chevron university carried out substantial amounts of research to tests of longitudinaltorsionaultrasonic ultrasonic motors.Root
According to the design feature of motor, the motor that oneself is developed is divided into multi-modal stator type and the single class of mode stator type two by he;2000
Year or so, Tsujino is studied oblique slot type mode conversion type ultrasound electric machine, and the motor only needs one group of piezoelectric vibrator to swash
Encourage, but single direction rotation can only be realized;2010 or so Zhao Chunsheng, poplars are drenched and propose a kind of chip longitudinal-torsional compound ultrasonic electricity
Machine, the motor needs three groups of piezoelectric ceramic pieces to be respectively used to encourage motor stator longitudinal vibration mode and torsional oscillation mode, required piezoelectricity pottery
Ceramics quantity is more and barbola work requirement is high, and the structure is not easy to miniaturization.
At present, existing Hybrid transducer motor has the following disadvantages:
1st, the twisting vibration of stator base has three kinds of energisation modes, and one is produced by the torsional oscillation piezoelectric ceramics based on d15 effects, but
This torsional oscillation piezoelectric ceramic process is complicated, processing difficulties, high cost;Two is by the longitudinal vibration Piezoelectric Ceramics Excitation based on d33 effects
Extensional vibration conversion and obtain, which needs to design corresponding mode converter, complex structure, and can only realize unidirectional rotation
Turn, three are encouraged by one group of piezoelectric ceramic piece based on d31 effects at an angle each other, barbola work requirement is high,
It is not easy to realize that motor is miniaturized.
2nd, traditional sandwich longitudinal-torsional compound ultrasonic motor complex structure, part be more, assembly process is more, and easily produces
Raw rigging error, causes extensional vibration and torsional frequency inconsistent.
The content of the invention
The present invention provides a kind of rod-type paster longitudinal-torsional compound ultrasonic motor, is a kind of steady rotating speed, and output performance is excellent,
Low cost, Miniaturized longitudinal-torsional composite ultrasonic motor, this motor cost is low, and number of parts is few, processing technology and assembler
Skill is simple, and motor stator structure is simpler, it is only necessary to which the length and width of regulating tank can just make the longitrorse vibrational of motor frequently
Rate is consistent, and preferably, motor is easy to miniaturization for extensional vibration and torsional frequency uniformity, and output torque is big, in bulk
There is its irreplaceable advantage in limited occasion.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of rod-type paster longitudinal-torsional compound ultrasonic motor, including stator and rotor assembly, wherein, rotor assembly includes that first is pre-
Pressure 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 are laid respectively
At stator module two ends, and in mirror alignment;First precompressed rotor-support-foundation system, the second precompressed rotor-support-foundation system and stator are coaxially socketed
On the rotating shaft, the stator be open circles tubulose metallic matrix, cut out on the excircle in the middle of metallic matrix six it is identical
The rectangle plane of size, one axially distributed groove is cut out every two rectangle planes respectively, and the position of groove is arranged on phase
Adjacent two junctions of plane, set three road grooves altogether, and the two ends of groove are provided with the semicircle perforate equal with groove width;In every twice groove
Between two rectangle planes on paste two rectangular piezoelectric ceramic pieces based on d31 effects respectively, form an exciting unit;
Offered respectively in bearing hole, bearing hole at the two ends of stator and be laid with bearing respectively;
Used as present invention further optimization, the first precompressed rotor-support-foundation system, the second precompressed rotor-support-foundation system include rotor, friction material
Material, silicon rubber spring, gland and locking nut, wherein, rotor is pasted with friction material, silicon rubber bullet with the side of stator contact
Spring, gland, locking nut are successively set on the opposite side of rotor, and rotor, silicon rubber spring, gland are socketed in rotary shaft
On, silicon rubber spring, gland are pressed on rotor by coupling between locking nut and rotary shaft;
As present invention further optimization, six rectangles of formed objects are cut out on the excircle in the middle of metallic matrix and is put down
Face, six rectangle planes are uniformly distributed in 120 degree two-by-two;Uniformly three strips are offered on the metallic matrix of stator to cut
Groove, the two ends of groove are provided with the semicircle perforate equal with groove width, for regulation motor torsional frequency, and each two strip
Two rectangle planes are provided between grooving;
It is viscous along stator shaft orientation respectively on two rectangle planes between described every twice groove as present invention further optimization
Two rectangular piezoelectric ceramic pieces based on d31 effects of patch, form an exciting unit, the piezoelectric ceramic piece of all exciting units
Polarised direction is directed to the center of circle or away from the center of circle;Apply phase respectively between two rectangular piezoelectric ceramic pieces of each exciting unit
Potential difference is 90 ° of sinusoidal excitation voltage or cosine driving voltage, and symmetric vibration mode and antisymmetry for inspiring unit are shaken
Dynamic model state, three groups of exciting units are eventually exhibited as 1 rank longitudinal vibration mode of stator body along the circumferential synthetic incentive effect of stator
With 2 rank torsion modes;
Used as present invention further optimization, the described bearing hole opened up respectively at the two ends of stator is stepped shaft bearing bore,
The first journal bearing, the second journal bearing are laid with respectively in bearing hole, and equally distributed cutting is offered on two end faces of stator
Groove.
By above technical scheme, relative to prior art, the invention has the advantages that:
Stator of the invention is open circles tubulose metallic matrix, and six formed objects are cut out on the excircle in the middle of metallic matrix
Rectangle plane, the rectangular piezoelectric ceramic piece based on d31 effects is pasted respectively, indulged for inspiring 1 rank needed for stator base
To mode of oscillation and 2 rank torsion modes, so as to avoid using the torsional oscillation potsherd based on d15 effects, in the middle of motor stator
3 strip groovings are evenly distributed with, and each strip grooving is located at two neighboring rectangle plane middle, for adjusting electricity
Torsional vibration frequency, can be conveniently adjusted extensional vibration and the torsional frequency uniformity of motor.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is the assembly structure figure of the preferred embodiments of the present invention;
Fig. 2 is the piezoelectric ceramics polarization distribution and electric excitation conceptual scheme of the preferred embodiments of the present invention;
Fig. 3 is the operation mode of paster longitudinal-torsional compound ultrasonic motor proposed by the present invention, and wherein a is represented and is distributed in the stator
The 2 rank torsional oscillation mode vibration shapes, b represents distribution 1 rank longitudinal vibration Mode Shape in the stator;
In figure:1 is rotary shaft, and 2 is locking nut, and 3 is gland, and 4 is rotor, and 5 is friction material, and 6 is grooving, and 7 is stator, 8
It is strip grooving, 9 is rectangular piezoelectric ceramic piece, and 10 is bearing, and 11 is silicon rubber spring.
Specific embodiment
In conjunction with the accompanying drawings, the present invention is further explained in detail.These accompanying drawings are simplified schematic diagram, only with
Illustration illustrates basic structure of the invention, therefore it only shows the composition relevant with the present invention.
As shown in figure 1, a kind of rod-type paster longitudinal-torsional compound ultrasonic motor of the invention, including stator 7 and rotor assembly,
Wherein, rotor assembly include 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,
Second precompressed rotor-support-foundation system is laid in stator module two ends respectively, and in mirror alignment;First precompressed rotor-support-foundation 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, in metallic matrix
Between excircle on cut out six rectangle planes of formed objects, every two rectangle planes cut out respectively together it is axially distributed
Groove, and the position of groove is arranged on the junction of two neighboring plane, and three road grooves are set altogether, and the two ends of groove are provided with equal with groove width
Semicircle perforate;Two Rectangular piezoelectrics based on d31 effects are pasted on two rectangle planes between every twice groove respectively
Potsherd 9, forms an exciting unit;Offered respectively in bearing hole, bearing hole at the two ends of stator and be laid with bearing respectively
10;
Used as present invention further optimization, the first precompressed rotor-support-foundation system, the second precompressed rotor-support-foundation system include rotor 4, friction
Material 5, silicon rubber spring 11, gland 3 and locking nut 2, wherein, rotor is pasted with friction material with the side of stator contact,
Silicon rubber spring, gland, locking nut are successively set on the opposite side of rotor, and rotor, silicon rubber spring, gland are socketed in
In rotary shaft, silicon rubber spring, gland are pressed on rotor by coupling between locking nut and rotary shaft;
As present invention further optimization, six rectangles of formed objects are cut out on the excircle in the middle of metallic matrix and is put down
Face, six rectangle planes are uniformly distributed in 120 degree two-by-two;Uniformly three strip groovings are offered on the metallic matrix of stator
8, the two ends of groove are provided with the semicircle perforate equal with groove width, for regulation motor torsional frequency, and each two strip
Two rectangle planes are provided between grooving;
Shown in Fig. 2-Fig. 3, as present invention further optimization, on two rectangle planes between described every twice groove respectively
Two rectangular piezoelectric ceramic pieces based on d31 effects are pasted along stator shaft orientation, an exciting unit is formed, all exciting units
The polarised direction of piezoelectric ceramic piece is directed to the center of circle or away from the center of circle;Two rectangular piezoelectric ceramic pieces of each exciting unit it
Between apply the sinusoidal excitation voltage or cosine driving voltage that phase difference is 90 ° respectively, the symmetric vibration mould for inspiring unit
State and antisymmetric vibration mode, three groups of exciting units are eventually exhibited as 1 rank of stator body along the circumferential synthetic incentive effect of stator
Longitudinal vibration mode and 2 rank torsion modes;
Time and spatially phase difference is 90 ° of 1 rank longitudinal vibration mode and the synthesis energy of 2 rank torsion modes in stator
Enough give directions stator faces and produce elliptic motion, for driving rotor to rotate;
Used as present invention further optimization, the described bearing hole opened up respectively at the two ends of stator is stepped shaft bearing bore,
The first journal bearing, the second journal bearing are laid with respectively in bearing hole, and equally distributed cutting is offered on two end faces of stator
Groove 6.
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 with the application art in those of ordinary skill general understanding identical meaning.Should also
Understand, those terms defined in such as general dictionary should be understood that the meaning having with the context of prior art
The consistent meaning of justice, and unless defined as here, will not be with idealizing or excessively formal implication be explained.
The implication of "and/or" described herein refers to the simultaneous situation of respective individualism or both and wraps
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.
With above-mentioned according to desirable embodiment of the invention as enlightenment, by above-mentioned description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property scope is not limited to the content on specification, it is necessary to its technical scope is determined according to right.
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
Six rectangle planes of formed objects are cut out, one axially distributed groove is cut out respectively every two rectangle planes, and groove
Position is arranged on the junction of two neighboring plane, and three road grooves are set altogether;Divide on two rectangle planes between every twice groove
Nian Tie not two rectangular piezoelectric ceramic pieces based on d31 effects, one exciting unit of formation;Offered respectively at the two ends of stator
Bearing is laid with respectively in bearing hole, bearing hole.
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 six rectangle planes of formed objects, six rectangle planes are uniformly distributed in 120 degree two-by-two;In stator
Three strip groovings uniformly are offered on metallic matrix, the two ends of groove are provided with the semicircle perforate equal with groove width, for adjusting
Economize on electricity is provided with two rectangle planes between torsional vibration frequency, and each two strip grooving.
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 paste two rectangular piezoelectric ceramic pieces based on d31 effects along stator shaft orientation respectively, form one and 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 the sinusoidal excitation voltage or cosine driving voltage that phase difference is 90 ° respectively, be used for
The symmetric vibration mode and antisymmetric vibration mode of unit are inspired, three groups of exciting units are along the circumferential synthetic incentive effect of stator
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 open 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)
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CN201611266917.1A CN106936333A (en) | 2016-12-31 | 2016-12-31 | A kind of rod-type paster longitudinal-torsional compound ultrasonic motor |
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CN201611266917.1A CN106936333A (en) | 2016-12-31 | 2016-12-31 | A kind of rod-type paster longitudinal-torsional compound ultrasonic motor |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108551278A (en) * | 2018-03-06 | 2018-09-18 | 南京航空航天大学 | A kind of patch type counter rotating birotor ultrasonic motor |
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CN1667934A (en) * | 2005-04-08 | 2005-09-14 | 清华大学 | Composite ultrasonic micromotor with slotted metal square column piezoelectric sheet |
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CN104124893A (en) * | 2014-07-21 | 2014-10-29 | 上海交通大学 | Grooving type longitrorse compound ultrasonic motor |
CN105305875A (en) * | 2015-11-16 | 2016-02-03 | 南京航空航天大学 | Rib plate displacement type longitudinal-torsional composite ultrasonic motor |
CN105305874A (en) * | 2015-11-16 | 2016-02-03 | 南京航空航天大学 | Rib plate-excited displacement type longitudinal-torsional composite ultrasonic motor |
CN206422710U (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 |
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2016
- 2016-12-31 CN CN201611266917.1A patent/CN106936333A/en active Pending
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1667934A (en) * | 2005-04-08 | 2005-09-14 | 清华大学 | Composite ultrasonic micromotor with slotted metal square column piezoelectric sheet |
CN101311650A (en) * | 2007-05-23 | 2008-11-26 | 海尔集团公司 | Fastening and loading device for ice maker container |
CN101777853A (en) * | 2010-01-12 | 2010-07-14 | 南京航空航天大学 | d31-effect based unidirectional chip longitudinal-torsional compound ultrasonic motor |
CN103354430A (en) * | 2013-06-28 | 2013-10-16 | 南京航空航天大学 | Flexible installation fixing apparatus for minitype mode-conversion type ultrasonic motor |
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CN105305875A (en) * | 2015-11-16 | 2016-02-03 | 南京航空航天大学 | Rib plate displacement type longitudinal-torsional composite ultrasonic motor |
CN105305874A (en) * | 2015-11-16 | 2016-02-03 | 南京航空航天大学 | Rib plate-excited displacement type longitudinal-torsional composite ultrasonic motor |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN108551278A (en) * | 2018-03-06 | 2018-09-18 | 南京航空航天大学 | A kind of patch type counter rotating birotor ultrasonic motor |
CN108551278B (en) * | 2018-03-06 | 2024-04-30 | 南京航空航天大学 | Patch type abnormal-direction rotating double-rotor ultrasonic motor |
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