CN105958861B - A kind of piezo-electric motor with half-crescent shape elastomer - Google Patents
A kind of piezo-electric motor with half-crescent shape elastomer Download PDFInfo
- Publication number
- CN105958861B CN105958861B CN201610411981.8A CN201610411981A CN105958861B CN 105958861 B CN105958861 B CN 105958861B CN 201610411981 A CN201610411981 A CN 201610411981A CN 105958861 B CN105958861 B CN 105958861B
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- crescent shape
- rotor
- shape elastomer
- piezoelectric vibrator
- elastomer
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- 229920001971 elastomer Polymers 0.000 title claims abstract description 48
- 239000000806 elastomer Substances 0.000 title claims abstract description 48
- 239000000463 material Substances 0.000 claims abstract description 10
- 238000005452 bending Methods 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 6
- 230000005489 elastic deformation Effects 0.000 abstract description 4
- 125000004122 cyclic group Chemical group 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- 240000006909 Tilia x europaea Species 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 229910001285 shape-memory alloy Inorganic materials 0.000 description 1
- 238000007514 turning Methods 0.000 description 1
- 238000011144 upstream manufacturing 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
- H02N2/02—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing linear motion, e.g. actuators; Linear positioners ; Linear motors
- H02N2/06—Drive circuits; Control arrangements or methods
- H02N2/062—Small signal circuits; Means for controlling position or derived quantities, e.g. for removing hysteresis
-
- 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
- H02N2/02—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing linear motion, e.g. actuators; Linear positioners ; Linear motors
- H02N2/04—Constructional details
- H02N2/043—Mechanical transmission means, e.g. for stroke amplification
- H02N2/046—Mechanical transmission means, e.g. for stroke amplification for conversion into rotary motion
Landscapes
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
The present invention relates to a kind of piezo-electric motor with half-crescent shape elastomer, including：Rotor, piezoelectric vibrator, stator and half-crescent shape elastomer, wherein：The rotor is column structure, and intermediate arrangement has a cylindrical hole i.e. rotor fixed position hole；The piezoelectric vibrator is made up of elastic base plate with the piezoelectric sheet material for being attached to its upper surface；One end of the piezoelectric vibrator and the side of rotor are connected, and the other end is free end；The half-crescent shape elastomer is the column structure that upper bottom surface is half-crescent shape, is pasted onto the lower surface of the piezoelectric vibrator free end；The stator is made up of stator disk and perpendicular central shaft；Rotor fixed position hole on the rotor constitutes revolute pair with the central shaft on the stator.The piezoelectric vibrator cyclic bending deformation provides the vibration of vertical direction, and the driving force on circumferencial direction is produced by the elastic deformation of half-crescent shape elastomer, has the advantages that simple in construction, required precision is low, tolerance is strong, power density is big.
Description
Technical field
The invention belongs to Piezoelectric Driving field, and in particular to a kind of piezo-electric motor with half-crescent shape elastomer.
Background technology
In recent years, with the fast development of nanometer technique, in optical engineering, micro-electronic manufacturing, aeronautical and space technology, super
The research of the technical fields such as precision optical machinery manufacture, biomedicine is all in the urgent need to simple in construction, tolerance is strong, high power density
Driver.Traditional stepper motor power per weight ratio is low, and motor run at high speed after need deceleration device speed change, cause biography
Dynamic system complex.Obviously, prior art can not meet the growth requirement of industrial circle.
With the development of science and technology, people develop the New-type electric machine that constitutes using functional material to realize that ultraprecise drives,
This research has achieved a series of achievement, such as memory alloy actuator, piezo-electric effect motor, electrostriction motor and magnetic in recent years
Cause telescope motor etc..Wherein, because piezoelectric (PZT) has, good linearity, easy to control, power density be big, displacement resolution
It is high, frequency response is good, do not generate heat, without electromagnetic interference the advantages of, therefore piezo-electric type precision actuation technology turns into domestic and international emphasis
Research direction.However, existing piezoelectric motor configuration is complex, requirement on machining accuracy is higher, and is generally firm between parts
Property coordinate, can not be worked after abrasion, therefore a kind of strong, the wear-resistant microminiature piezo-electric motor of simple in construction, tolerance of design is
It is particularly significant.
The content of the invention
It is small, complicated in order to solve traditional stepper motor power density, and existing piezoelectric motor configuration is complicated, tolerance
A kind of technical problems such as difference, it is proposed that piezo-electric motor with half-crescent shape elastomer, the driver by rotor, piezoelectric vibrator,
Stator and half-crescent shape elastomer are constituted, and the piezoelectric vibrator provides the excitation of vertical direction, passes through half-crescent shape elastomer
Elastic deformation produces the driving force on circumferencial direction, so that rotor driven is rotated.It is of the invention compared with existing piezo-electric motor, by
In there is elastic construction, after abrasion also can normal work, with simple in construction, the advantages of tolerance is strong；With traditional stepping electricity
Machine is compared, and the present invention has the advantages that simple in construction, power density is high, generate heat less, without Electromagnetic Interference.
To achieve these goals, the present invention uses following technical scheme：
A kind of piezo-electric motor with half-crescent shape elastomer of the present invention, including：Rotor, piezoelectric vibrator, stator and half are curved
Month shape elastomer, wherein：The rotor is column structure, and intermediate arrangement has a cylindrical hole i.e. rotor fixed position hole；The piezoelectricity
Oscillator is made up of elastic base plate with the piezoelectric sheet material for being attached to its upper surface；The side that one end of the piezoelectric vibrator passes through welding
The side connection of formula and rotor, the other end is free end；The half-crescent shape elastomer is the post that upper bottom surface is half-crescent shape
Body structure, is surrounded by the different curved surface of two curvature and a mounting plane sideways, and two of which surface intersection is handed in a straight line
Line is contact straight line；Mounting plane on the half-crescent shape elastomer is pasted onto the piezoelectric vibrator by gluing mode
With the perpendicular short transverse of upper bottom surface and the piezoelectric vibrator on the lower surface of free end, and the half-crescent shape elastomer
Length direction it is consistent, to produce the turning moment of maximum；Each half-crescent shape elastomer bending direction is all side clockwise
To or be all counterclockwise；Contact straight line on each half-crescent shape elastomer is at grade；The stator is by fixed
Sub- disk and perpendicular central shaft composition；Rotor fixed position hole on the rotor is constituted with the central shaft on the stator
Contact straight line in revolute pair, and the half-crescent shape elastomer is in contact with the upper surface of the stator disk.
The piezoelectric vibrator is shaken using being pasted onto the single-chip piezoelectricity formed on elastic base plate by a piece of piezoelectric sheet material
Son, or use are pasted onto the bi-morph piezo-electric oscillator that elastic base plate both sides are formed by two panels piezoelectric sheet material.
During work, stator is fixed, the upper surface phase of contact straight line and stator disk on the half-crescent shape elastomer
Contact, applies driving voltage, the upper surface output torque of rotor on piezoelectric vibrator.Apply high frequency on the piezoelectric vibrator to hand over
Stream voltage brings it about cyclic bending deformation, and the free end of piezoelectric vibrator produces the excitation of vertical direction, when piezoelectric vibrator drives
Half-crescent shape elastomer from upper extreme position move downward when, the half-crescent shape elastomer is squeezed generation elastic deformation,
Now because normal pressure increases, frictional force is also larger, and the contact straight line on the half-crescent shape elastomer is in contact with working face
Will not slide, thus the piezoelectric vibrator being connected with the half-crescent shape elastomer upper end free end vibrate downwards it is same
When can produce the positive-displacement of a horizontal direction, i.e., by limes superiors, " position 1 " moves to limit inferior " position 2 ", in having
The limitation of heart axle, the piezoelectric vibrator can the positive corner of rotor driven generation one；When piezoelectric vibrator drives half-crescent shape elasticity
Body from lower limit position move upwards when, now normal pressure reduce suddenly it is even temporary disappear, half-crescent shape elasticity
Body gradually restores to the original state, and is even disappeared during reinstatement because frictional force reduces, i.e., in vibration while institute upwards
State half-crescent shape elastomer upper end mounting plane produced under the collective effect of elastic-restoring force and frictional force one it is small
Upstream shift, the contact straight line of the half-crescent shape elastomer lower end occurs sliding and produces a total positive-displacement, i.e., under
" position 2 " moves to limes superiors, and " position 3 ", due to there is the limitation of central shaft, the piezoelectric vibrator can rotor driven generation for the limit
One total positive corner, completes a working cycles, in the process, is in contact on half-crescent shape elastomer with working face
One step-length of contact straight-ahead motion, alternating voltage effect under, realize orientation stepper drive ability.
Brief description of the drawings
Fig. 1 is a kind of piezoelectric motor configuration schematic diagram with half-crescent shape elastomer of the present invention.
Fig. 2 is a kind of each part installation relation schematic diagram of piezo-electric motor with half-crescent shape elastomer of the invention.
Fig. 3 is a kind of motion schematic diagram of the directional driver with half-crescent shape elastomer of the present invention.
Embodiment
Reference picture 1, Fig. 2 and Fig. 3, a kind of piezo-electric motor with half-crescent shape elastomer of the present invention by rotor 1, six together
The half-crescent shape elastomer 4 of the piezoelectric vibrator 2 of one specification, stator 3 and six same specifications is constituted, wherein：
The rotor 1 is six prism structures, and intermediate arrangement has a cylindrical hole i.e. rotor fixed position hole 11；The piezoelectric vibrator
2 are made up of elastic base plate 21 with the piezoelectric sheet material 22 for being attached to its upper surface；One end of the piezoelectric vibrator 2 passes through welding
Mode is connected with the side of rotor 1, and the other end is free end；The half-crescent shape elastomer 4 is that upper bottom surface is half-crescent shape
Column structure, surrounded sideways by the different curved surface of two curvature and a mounting plane 41, two of which surface intersection is in one
Straight line, intersection is contact straight line 42；Mounting plane 41 on the half-crescent shape elastomer 4 is pasted onto by gluing mode
The lower surface of the free end of piezoelectric vibrator 2, and short transverse perpendicular with upper bottom surface on the half-crescent shape elastomer 4
It is consistent with the length direction of the piezoelectric vibrator 2；Six half-crescent shape elastomers 4 bending direction is all clockwise；
Contact straight line 42 on six half-crescent shape elastomers 4 is at grade；The stator 3 is by stator disk 31 and therewith
Perpendicular central shaft 32 is constituted；Rotor fixed position hole 11 on the rotor 1 is constituted with the central shaft 32 on the stator 3 to be rotated
Contact straight line 42 in pair, and the half-crescent shape elastomer 4 is in contact with the upper surface of the stator disk 31.
The piezoelectric vibrator 2 uses and is pasted onto the single-chip pressure formed on elastic base plate 21 by a piece of piezoelectric sheet material 22
Electric tachometer indicator.
During work, stator 3 is fixed, the contact straight line 42 on the half-crescent shape elastomer 4 is upper with stator disk 31
Surface is in contact.Apply high-frequency ac voltage on the piezoelectric vibrator 2 and bring it about cyclic bending deformation, pass through half-crescent shape
The elastic deformation of elastomer 4 produces the driving force on circumferencial direction.
Claims (2)
1. a kind of piezo-electric motor with half-crescent shape elastomer, including：Rotor (1), the piezoelectricity of more than one same specification shake
Sub (2) and stator (3), it is characterised in that also including with the piezoelectric vibrator (2) quantity identical half-crescent shape elastomer (4),
Wherein：The rotor (1) is column structure, and intermediate arrangement has a cylindrical hole i.e. rotor fixed position hole (11)；The piezoelectric vibrator
(2) by elastic base plate (21) and it is attached to the piezoelectric sheet material (22) of its upper surface and constitutes；One end of the piezoelectric vibrator (2) with
The side connection of rotor (1), the other end is free end；The half-crescent shape elastomer (4) is that upper bottom surface is half-crescent shape
Column structure, is surrounded, two of which surface intersection is in one by the different curved surface of two curvature and a mounting plane (41) sideways
Straight line, intersection is contact straight line (42)；Mounting plane (41) on the half-crescent shape elastomer (4) is pasted onto the piezoelectricity
The lower surface of oscillator (2) free end, and short transverse perpendicular with upper bottom surface on the half-crescent shape elastomer (4) and institute
The length direction for stating piezoelectric vibrator (2) is consistent；Half-crescent shape elastomer (4) bending direction is all clockwise or is all
Counterclockwise；Contact straight line (42) on the half-crescent shape elastomer (4) is at grade；The stator (3) is by fixed
Sub- disk (31) and perpendicular central shaft (32) composition；Rotor fixed position hole (11) on the rotor (1) with it is described fixed
Central shaft (32) on sub (3) constitute contact straight line (42) in revolute pair, and the half-crescent shape elastomer (4) with it is described fixed
The upper surface of sub- disk (31) is in contact.
2. a kind of piezo-electric motor with half-crescent shape elastomer according to claim 1, it is characterised in that：The piezoelectricity
Oscillator (2) uses and is pasted onto the single-chip piezoelectric vibrator formed on elastic base plate (21) by a piece of piezoelectric sheet material (22), or
The bi-morph piezo-electric oscillator that elastic base plate (21) both sides are formed is pasted onto using by two panels piezoelectric sheet material (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610411981.8A CN105958861B (en) | 2016-06-12 | 2016-06-12 | A kind of piezo-electric motor with half-crescent shape elastomer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610411981.8A CN105958861B (en) | 2016-06-12 | 2016-06-12 | A kind of piezo-electric motor with half-crescent shape elastomer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105958861A CN105958861A (en) | 2016-09-21 |
| CN105958861B true CN105958861B (en) | 2017-10-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610411981.8A Active CN105958861B (en) | 2016-06-12 | 2016-06-12 | A kind of piezo-electric motor with half-crescent shape elastomer |
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| Country | Link |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2535972Y (en) * | 2002-03-21 | 2003-02-12 | 浙江大学 | Surface elastic wave motor |
| WO2004082037A3 (en) * | 2003-03-10 | 2005-01-27 | Leuven K U Res & Dev | A motor combining a resonant vibration mode, a stepping mode and a direct positioning mode |
| CN102497132A (en) * | 2011-12-22 | 2012-06-13 | 哈尔滨工业大学 | Ceramic embedded I-shaped four-foot linear ultrasonic motor vibrator |
| CN102916607A (en) * | 2012-06-25 | 2013-02-06 | 南京航空航天大学 | Three-DOF (degree of freedom) motion platform based on linear ultrasonic motor and excitation method thereof |
| CN205666768U (en) * | 2016-06-12 | 2016-10-26 | 吉林大学 | Piezoelectric motor with half falcate elastomer |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7514851B2 (en) * | 2005-07-13 | 2009-04-07 | Siemens Medical Solutions Usa, Inc. | Curved capacitive membrane ultrasound transducer array |
-
2016
- 2016-06-12 CN CN201610411981.8A patent/CN105958861B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2535972Y (en) * | 2002-03-21 | 2003-02-12 | 浙江大学 | Surface elastic wave motor |
| WO2004082037A3 (en) * | 2003-03-10 | 2005-01-27 | Leuven K U Res & Dev | A motor combining a resonant vibration mode, a stepping mode and a direct positioning mode |
| CN102497132A (en) * | 2011-12-22 | 2012-06-13 | 哈尔滨工业大学 | Ceramic embedded I-shaped four-foot linear ultrasonic motor vibrator |
| CN102916607A (en) * | 2012-06-25 | 2013-02-06 | 南京航空航天大学 | Three-DOF (degree of freedom) motion platform based on linear ultrasonic motor and excitation method thereof |
| CN205666768U (en) * | 2016-06-12 | 2016-10-26 | 吉林大学 | Piezoelectric motor with half falcate elastomer |
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| Publication number | Publication date |
|---|---|
| CN105958861A (en) | 2016-09-21 |
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Effective date of registration: 20210518 Address after: Room 704a-1, Huigu building, 1357 Jinhu Road, high tech Zone, Changchun City, Jilin Province, 130000 Patentee after: CHANGCHUN SHANGYUAN TECHNOLOGY DEVELOPMENT Co.,Ltd. Address before: 130012 No. 2699 Qianjin Street, Jilin, Changchun Patentee before: Jilin University |
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Effective date of registration: 20210625 Address after: 215123 unit 8-102, creative industry park, No. 328 Xinghu street, Suzhou Industrial Park, Suzhou area, China (Jiangsu) pilot Free Trade Zone, Suzhou City, Jiangsu Province Patentee after: Resonant electromechanical precision technology (Suzhou) Co.,Ltd. Address before: Room 704a-1, Huigu building, 1357 Jinhu Road, high tech Zone, Changchun City, Jilin Province, 130000 Patentee before: CHANGCHUN SHANGYUAN TECHNOLOGY DEVELOPMENT Co.,Ltd. |