CN206422710U - 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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- CN206422710U CN206422710U CN201621485164.9U CN201621485164U CN206422710U CN 206422710 U CN206422710 U CN 206422710U CN 201621485164 U CN201621485164 U CN 201621485164U CN 206422710 U CN206422710 U CN 206422710U
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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, 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 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；The utility model motor stator structure 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 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.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 one of the focus studied as recent domestic.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 structure of the piezoelectric stator structure 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, which are drenched, proposes a kind of chip longitudinal-torsional compound ultrasonic electricity
Machine, the motor needs three groups of piezoelectric ceramic pieces to be respectively used to excitation motor stator longitudinal vibration mode and torsional oscillation mode, required piezoelectricity pottery
Ceramics quantity is more and barbola work requires 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 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, three are encouraged by one group of piezoelectric ceramic piece at an angle based on d31 effects each other, barbola work requirement
Height, is not easy to realize that motor is miniaturized.
2nd, traditional sandwich longitudinal-torsional compound ultrasonic motor is complicated, part is more, assembly process is more, and easily production
Raw rigging error, causes extensional vibration and torsional frequency inconsistent.
Utility model content
The utility model provides a kind of rod-type paster longitudinal-torsional compound ultrasonic motor, is that a kind of rotating speed is steady, output performance
Excellent, cost is low, and Miniaturized longitudinal-torsional composite ultrasonic motor, this motor cost is low, and number of parts is few, processing technology and dress
Simple with technique, motor stator structure is simpler, it is only necessary to which the length and width of regulating tank just can make the longitrorse of motor shake
Dynamic frequency is consistent, and preferably, motor is easy to miniaturization for extensional vibration and torsional frequency uniformity, and output torque is big, in space
There is its irreplaceable advantage in size-constrained occasion.
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, the two ends of groove are provided with the semicircle perforate equal with groove width；Every two
Two rectangular piezoelectric ceramic pieces based on d31 effects are pasted on two rectangle planes between road groove respectively, an excitation is formed
Unit；Offered respectively in bearing hole, bearing hole at the two ends of stator and be 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 groove are provided with the semicircle perforate equal with groove width, and for regulation motor torsional frequency, and each two is long
Provided with two rectangle planes between bar shaped grooving；
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, and each strip grooving is located at two neighboring rectangle plane middle, is used 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 assembly structure figure of preferred embodiment of the present utility model；
Fig. 2 is the piezoelectric ceramics polarization distribution and electric excitation conceptual scheme 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 represents to be distributed in
The 2 rank torsional oscillation mode vibration shapes in stator, b represents to be distributed 1 rank longitudinal vibration Mode Shape in the stator；
In figure：1 is rotary shaft, and 2 be locking nut, and 3 be gland, and 4 be rotor, and 5 be friction material, and 6 be grooving, and 7 be fixed
Son, 8 be strip grooving, and 9 be rectangular piezoelectric ceramic piece, and 10 be bearing, and 11 be silicon rubber spring.
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 shown in figure 1, a kind of rod-type paster longitudinal-torsional compound ultrasonic motor of the present utility model, including stator 7 and rotor
Component, 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
System, the second precompressed rotor-support-foundation system are laid in stator module two ends respectively, and in mirror alignment；First precompressed rotor-support-foundation system,
Two precompressed rotor-support-foundation systems and stator are coaxially socketed in rotary shaft, and the stator is open circles tubulose metallic matrix, in metal
The rectangle plane of six formed objects is cut out on excircle in the middle of matrix, is cut out respectively together along axle every two rectangle planes
The junction of two neighboring plane is arranged on to the position of the groove of distribution, and groove, three road grooves are set altogether, the two ends of groove are provided with and groove
Wide equal semicircle perforate；Two squares based on d31 effects are pasted respectively on two rectangle planes between every twice groove
Shape piezoelectric ceramic piece 9, forms an exciting unit；Offer and laid respectively in bearing hole, bearing hole respectively at the two ends of stator
There is bearing 10；
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 5, silicon rubber spring 11, gland 3 and locking nut 2, wherein, the side of rotor and stator contact, which is pasted with, rubs
Material is wiped, silicon rubber spring, gland, locking nut are successively set on the opposite side of rotor, and rotor, silicon rubber spring, gland
It is socketed 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 8, the two ends of groove are provided with the semicircle perforate equal with groove width, for regulation motor torsional frequency, and each two
Provided with two rectangle planes between strip grooving；
Shown in Fig. 2-Fig. 3, as it is of the present utility model further preferably, two rectangles between described every twice groove are flat
Two rectangular piezoelectric ceramic pieces based on d31 effects are pasted along stator shaft orientation respectively on face, an exciting unit is formed, it is all to swash
The polarised direction for encouraging the piezoelectric ceramic piece of unit is directed to the center of circle or away from the center of circle；Two Rectangular piezoelectrics of each exciting unit
Apply sinusoidal excitation voltage or cosine driving voltage that phase difference is 90 °, pair for inspiring unit between potsherd respectively
Claim mode of oscillation and antisymmetric vibration mode, three groups of exciting units are eventually exhibited as stator along the circumferential synthetic incentive effect of stator
The 1 rank longitudinal vibration mode and 2 rank torsion modes of body；
Time and spatially phase difference is 90 ° of 1 rank longitudinal vibration mode and the conjunction of 2 rank torsion modes in stator
Elliptic motion is produced into that can give directions stator faces, 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 6 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, 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 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 groove are provided with the semicircle perforate equal with groove width, for adjusting
Provided with two rectangle planes between the torsional vibration frequency, and each two strip grooving of economizing on electricity.
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 |
|---|---|---|---|
| CN201621485164.9U CN206422710U (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 |
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| CN201621485164.9U CN206422710U (en) | 2016-12-31 | 2016-12-31 | A kind of rod-type paster longitudinal-torsional compound ultrasonic motor |
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| CN206422710U true CN206422710U (en) | 2017-08-18 |
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| CN201621485164.9U Expired - Fee Related CN206422710U (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 |
|---|---|---|---|---|
| CN106936333A (en) * | 2016-12-31 | 2017-07-07 | 南京航空航天大学 | A kind of rod-type paster longitudinal-torsional compound ultrasonic motor |
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- 2016-12-31 CN CN201621485164.9U patent/CN206422710U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106936333A (en) * | 2016-12-31 | 2017-07-07 | 南京航空航天大学 | A kind of rod-type paster longitudinal-torsional compound ultrasonic motor |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170818 Termination date: 20201231 |
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| CF01 | Termination of patent right due to non-payment of annual fee |