CN110022089A - A kind of sandwich magnetic repulsion rotating electric machine based on piezoelectric ceramics - Google Patents
A kind of sandwich magnetic repulsion rotating electric machine based on piezoelectric ceramics Download PDFInfo
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- CN110022089A CN110022089A CN201910384318.7A CN201910384318A CN110022089A CN 110022089 A CN110022089 A CN 110022089A CN 201910384318 A CN201910384318 A CN 201910384318A CN 110022089 A CN110022089 A CN 110022089A
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- piezoelectric ceramics
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- magnetic repulsion
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N11/00—Generators or motors not provided for elsewhere; Alleged perpetua mobilia obtained by electric or magnetic means
- H02N11/006—Motors
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Abstract
Sandwich magnetic repulsion rotating electric machine based on piezoelectric ceramics, is related to piezoelectric driving technology field.It solves the problems such as service life is short, revolving speed is low caused by existing piezoelectric actuator is worn due to material.The present invention includes rear end cap, piezoelectric ceramics, drive end bearing bracket, annular permanent magnet, ring structure rotor and rectangle magnetic patch；When applying high-frequency ac voltage on piezoelectric ceramics, known from experience by the stator elastic composite that rear end cap, piezoelectric ceramics and drive end bearing bracket form and generates extensional vibration, the relative spacing that the extensional vibration can be constantly changing the annular permanent magnet being pasted on stator between the rectangle magnetic patch that is pasted on ring structure rotor, annular permanent magnet and the rectangle magnetic patch being pasted on wedge structure remain certain angle, realize driving eventually by the cross component force of the homopolarity repulsion between magnet.Present invention could apply to noncontact driving fields.
Description
Technical field
The present invention relates to a kind of sandwich magnetic repulsion rotating electric machine based on piezoelectric ceramics, belongs to piezoelectric ultrasonic motor skill
Art field.
Background technique
Current piezoelectric driving technology is mainly the inverse piezoelectric effect for utilizing piezoelectric ceramics, converts electric energy to mechanical energy,
The stator of piezoelectric actuator is usually the composite elastic body for the specific shape being made of piezoelectric ceramics and metal elastomer, by right
The alternating voltage that piezoelectric ceramics applies supersonic frequency realizes the excitation in stator elastomeric with frequency mechanical oscillation, and then drives in stator
Dynamic region endoplasm point forms the motion profile with driving effect；It is real further by the friction coupling between stator and rotor
The output of existing rotor macroscopic motion.It has many advantages, such as low speed high torque, without gear, fast response time, as one kind
Piezoelectric actuator has very extensive application.
Since existing piezoelectric actuator is using friction coupling driving, lead to problems such as there are the service life is short, revolving speed is low, so that
Application range is seriously restricted.
Summary of the invention
In order to solve, existing piezoelectric actuator driver service life as caused by friction coupling between stator and rotor is short, turns
The low problem of speed, provides a kind of sandwich magnetic repulsion rotating electric machine based on piezoelectric ceramics.
Sandwich magnetic repulsion rotating electric machine based on piezoelectric ceramics of the invention include rear end cap (1), piezoelectric ceramics (2),
Drive end bearing bracket (3), annular permanent magnet (4) and rectangle magnetic patch (5) and ring structure rotor (6)；Rear end cap (1), piezoelectric ceramic piece (2)
Driver stator is collectively constituted with drive end bearing bracket (3), annular permanent magnet (4) is pasted onto drive end bearing bracket (3) upper surface, rectangle magnetic patch (5)
It is pasted on the wedge-shaped end face of ring structure rotor (6), and piezoelectric ceramics through-thickness polarizes.
The driver rotor of sandwich magnetic repulsion rotating electric machine based on piezoelectric ceramics of the invention is ring structure, including
Rectangle magnetic patch (5) and ring structure rotor (6) two parts, the lower end surface of ring structure rotor (6) are serrated, rectangle magnetic patch according to
It is secondary to be pasted on the ipsilateral lozenges of each sawtooth.
The piezoelectric ceramics (2) of sandwich magnetic repulsion rotating electric machine based on piezoelectric ceramics of the invention is held on rear end cap
(1) between drive end bearing bracket (3), and piezoelectric ceramics (2) is in pressured state always.
The rectangle magnetic patch (5) and ring structure rotor of sandwich magnetic repulsion rotating electric machine based on piezoelectric ceramics of the invention
(6) freedom degree in the vertical direction is limited, and stator elastomeric is displaced cyclically-varying caused by the vertical direction, so that
Relative spacing also cyclically-varying between annular permanent magnet (4) and rectangle magnetic patch (5), and then persistently generate effective horizontal magnetic
Repulsion component, driving driver rotor is along continuous rotation counterclockwise (or clockwise).
The piezoelectric ceramics (2) of sandwich magnetic repulsion rotating electric machine based on piezoelectric ceramics of the invention is by piezoelectric ceramic piece
It stacks, by applying single-phase high frequency alternating voltage to piezoelectric ceramics (2), by means of the d of piezoelectric ceramic piece33Operating mode is real
The excitation of existing stator elastic composites longitudinal vibration mode.
The rear end cap (1) of sandwich magnetic repulsion rotating electric machine based on piezoelectric ceramics of the invention and the cross of drive end bearing bracket (3)
Sectional area is more than or equal to the cross section of piezoelectric ceramics (2).
The axis and ring of the ring structure rotor (6) of sandwich magnetic repulsion rotating electric machine based on piezoelectric ceramics of the invention
The axis of shape permanent magnet (4) is overlapped.
Without friction between the driver stator and mover of rod-type magnetic repulsion driving method based on piezoelectric ceramics of the invention,
The driver service life is long, and revolving speed is high, and process and assemble is easy, is easy to implement seriation and commercialization.
The present invention is suitable for noncontact driving field.
Detailed description of the invention
Fig. 1 is tomograph of the invention.
Fig. 2 is piezoelectric ceramic piece polarization direction schematic diagram of the invention.
Fig. 3 is longitudinal vibration Mode Shape schematic diagram of the invention.
Specific embodiment
Specific embodiment 1: illustrating present embodiment in conjunction with Fig. 1 to Fig. 3, made pottery described in present embodiment based on piezoelectricity
The sandwich magnetic repulsion rotating electric machine of porcelain, including rear end cap (1), piezoelectric ceramics (2), drive end bearing bracket (3), annular permanent magnet (4) and
Rectangle magnetic patch (5) and ring structure rotor (6)；Rear end cap (1), piezoelectric ceramic piece (2) and drive end bearing bracket (3) collectively constitute driver
Stator, annular permanent magnet (4) are pasted onto drive end bearing bracket (3) upper surface, and rectangle magnetic patch (5) is pasted onto the wedge of ring structure rotor (6)
On shape end face, and piezoelectric ceramics through-thickness polarizes.
Specific embodiment 2: present embodiment with described in specific embodiment one based on the sandwich of piezoelectric ceramics
The difference of formula magnetic repulsion rotating electric machine is that the driver rotor is ring structure, including rectangle magnetic patch (5) and ring structure
Rotor (6) two parts, the lower end surface of ring structure rotor (6) are serrated, and rectangle magnetic patch is successively pasted onto the ipsilateral of each sawtooth
On lozenges.
Specific embodiment 3: present embodiment with described in specific embodiment one based on the sandwich of piezoelectric ceramics
The difference of formula magnetic repulsion rotating electric machine is that the piezoelectric ceramics (2) is held between rear end cap (1) and drive end bearing bracket (3), and presses
Electroceramics (2) is in pressured state always.
Specific embodiment 4: present embodiment with described in specific embodiment one based on the sandwich of piezoelectric ceramics
The difference of formula magnetic repulsion rotating electric machine is, the freedom of the rectangle magnetic patch (5) and ring structure rotor (6) in the vertical direction
Degree is limited, and stator elastomeric is displaced cyclically-varying caused by the vertical direction, so that annular permanent magnet (4) and rectangle magnetic
Relative spacing also cyclically-varying between block (5), and then effective horizontal magnetic repulsion component is persistently generated, driving driver turns
Son is along continuous rotation counterclockwise (or clockwise).
Specific embodiment 5: present embodiment with described in specific embodiment one based on the sandwich of piezoelectric ceramics
The difference of formula magnetic repulsion rotating electric machine is that the piezoelectric ceramics (2) is stacked by piezoelectric ceramic piece, by making pottery to piezoelectricity
Porcelain (2) applies single-phase high frequency alternating voltage, by means of the d of piezoelectric ceramic piece33Operating mode realizes the longitudinal vibration of stator elastic composites
The excitation of mode.
Specific embodiment 6: present embodiment with described in specific embodiment one based on the sandwich of piezoelectric ceramics
The difference of formula magnetic repulsion rotating electric machine is that the cross-sectional area of the rear end cap (1) and drive end bearing bracket (3) is more than or equal to piezoelectricity
The cross section of ceramic (2).
Specific embodiment 7: present embodiment with described in specific embodiment one based on the sandwich of piezoelectric ceramics
The difference of formula magnetic repulsion rotating electric machine is, it is described after the axis of ring structure rotor (6) and the axis weight of annular permanent magnet (4)
It closes.
Claims (7)
1. the sandwich magnetic repulsion rotating electric machine based on piezoelectric ceramics, including rear end cap (1), piezoelectric ceramics (2), drive end bearing bracket (3),
Annular permanent magnet (4) and rectangle magnetic patch (5) and ring structure rotor (6)；Rear end cap (1), piezoelectric ceramic piece (2) and drive end bearing bracket
(3) driver stator is collectively constituted, annular permanent magnet (4) is pasted onto drive end bearing bracket (3) upper surface, and rectangle magnetic patch (5) is pasted onto ring
On the wedge-shaped end face of shape construction rotor (6), and piezoelectric ceramics through-thickness polarizes.
2. a kind of sandwich magnetic repulsion rotating electric machine based on piezoelectric ceramics according to claim 1, it is characterised in that institute
Stating driver rotor is ring structure, including rectangle magnetic patch (5) and ring structure rotor (6) two parts, ring structure rotor (6)
Lower end surface be serrated, rectangle magnetic patch is successively pasted on the ipsilateral lozenges of each sawtooth.
3. a kind of sandwich magnetic repulsion rotating electric machine based on piezoelectric ceramics according to claim 1, it is characterised in that institute
It states piezoelectric ceramics (2) to be held between rear end cap (1) and drive end bearing bracket (3), and piezoelectric ceramics (2) is in pressured state always.
4. a kind of sandwich magnetic repulsion rotating electric machine based on piezoelectric ceramics according to claim 1, it is characterised in that institute
It states the freedom degree of rectangle magnetic patch (5) and ring structure rotor (6) in the vertical direction to be limited, stator elastomeric is in vertical direction
Generated displacement cyclically-varying, so that the relative spacing between annular permanent magnet (4) and rectangle magnetic patch (5) also periodically becomes
Change, and then persistently generate effective horizontal magnetic repulsion component, driving driver rotor is along continuous rotation counterclockwise (or clockwise).
5. a kind of sandwich magnetic repulsion rotating electric machine based on piezoelectric ceramics according to claim 1, it is characterised in that institute
Stating piezoelectric ceramics (2) is stacked by piezoelectric ceramic piece, by applying single-phase high frequency alternating voltage to piezoelectric ceramics (2), is borrowed
Help the d of piezoelectric ceramic piece33The excitation of operating mode realization stator elastic composites longitudinal vibration mode.
6. a kind of sandwich magnetic repulsion rotating electric machine based on piezoelectric ceramics according to claim 1, it is characterised in that institute
The cross-sectional area for stating rear end cap (1) and drive end bearing bracket (3) is more than or equal to the cross section of piezoelectric ceramics (2).
7. a kind of sandwich magnetic repulsion rotating electric machine based on piezoelectric ceramics according to claim 1, it is characterised in that institute
The axis for stating ring structure rotor (6) is overlapped with the axis of annular permanent magnet (4).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910384318.7A CN110022089B (en) | 2019-05-09 | 2019-05-09 | Sandwich type magnetic repulsion force rotating motor based on piezoelectric ceramics |
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| CN201910384318.7A CN110022089B (en) | 2019-05-09 | 2019-05-09 | Sandwich type magnetic repulsion force rotating motor based on piezoelectric ceramics |
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| CN110022089B CN110022089B (en) | 2020-09-29 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110829887A (en) * | 2019-11-27 | 2020-02-21 | 山东理工大学 | Standing wave type double-sided magnetic repulsion force rotating motor capable of rotating in two directions |
| CN114055248A (en) * | 2021-11-22 | 2022-02-18 | 江西圣卓科技有限公司 | Piezoelectric-driven microminiature dividing disc and control method thereof |
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| NL177785C (en) * | 1978-05-12 | 1985-11-18 | Sp Pk T Byuro Malykh Elek Mash | ELECTRIC VIBRATION MOTOR. |
| JPS63217980A (en) * | 1987-03-03 | 1988-09-12 | Seiko Instr & Electronics Ltd | Structure of wave motor |
| US5107163A (en) * | 1989-07-17 | 1992-04-21 | Aisin Seiki Kabushiki Kaisha | Ultrasonic motor |
| CN1470417A (en) * | 2003-06-26 | 2004-01-28 | 上海磁悬浮交通发展有限公司 | Power rail mounting vehicle for magnetic-suspension train |
| WO2013148641A1 (en) * | 2012-03-27 | 2013-10-03 | Bayer Material Science Ag | Rotational inertial drive system and bearing systems for electroactive polymer devices |
| CN105553328A (en) * | 2016-02-02 | 2016-05-04 | 吉林大学 | Piezoelectric vibrating peristaltic motor |
| CN105629983A (en) * | 2016-02-18 | 2016-06-01 | 江西洪都航空工业集团有限责任公司 | Attitude control device based on magnetic suspension chassis |
-
2019
- 2019-05-09 CN CN201910384318.7A patent/CN110022089B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL177785C (en) * | 1978-05-12 | 1985-11-18 | Sp Pk T Byuro Malykh Elek Mash | ELECTRIC VIBRATION MOTOR. |
| JPS63217980A (en) * | 1987-03-03 | 1988-09-12 | Seiko Instr & Electronics Ltd | Structure of wave motor |
| US5107163A (en) * | 1989-07-17 | 1992-04-21 | Aisin Seiki Kabushiki Kaisha | Ultrasonic motor |
| CN1470417A (en) * | 2003-06-26 | 2004-01-28 | 上海磁悬浮交通发展有限公司 | Power rail mounting vehicle for magnetic-suspension train |
| WO2013148641A1 (en) * | 2012-03-27 | 2013-10-03 | Bayer Material Science Ag | Rotational inertial drive system and bearing systems for electroactive polymer devices |
| CN105553328A (en) * | 2016-02-02 | 2016-05-04 | 吉林大学 | Piezoelectric vibrating peristaltic motor |
| CN105629983A (en) * | 2016-02-18 | 2016-06-01 | 江西洪都航空工业集团有限责任公司 | Attitude control device based on magnetic suspension chassis |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110829887A (en) * | 2019-11-27 | 2020-02-21 | 山东理工大学 | Standing wave type double-sided magnetic repulsion force rotating motor capable of rotating in two directions |
| CN110829887B (en) * | 2019-11-27 | 2024-06-04 | 山东理工大学 | Standing wave type double-sided magnetic repulsion rotary motor capable of rotating bidirectionally |
| CN114055248A (en) * | 2021-11-22 | 2022-02-18 | 江西圣卓科技有限公司 | Piezoelectric-driven microminiature dividing disc and control method thereof |
| CN114055248B (en) * | 2021-11-22 | 2022-10-21 | 江西圣卓科技有限公司 | Piezoelectrically-driven microminiature index plate and control method thereof |
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| CN110022089B (en) | 2020-09-29 |
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