CN101984550B - Flexible hinge based clamping and positioning device for linear ultrasonic motor - Google Patents
Flexible hinge based clamping and positioning device for linear ultrasonic motor Download PDFInfo
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- CN101984550B CN101984550B CN2010105560887A CN201010556088A CN101984550B CN 101984550 B CN101984550 B CN 101984550B CN 2010105560887 A CN2010105560887 A CN 2010105560887A CN 201010556088 A CN201010556088 A CN 201010556088A CN 101984550 B CN101984550 B CN 101984550B
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Abstract
A flexible hinge based clamping and positioning device for a linear ultrasonic motor comprises a stator (3) and a rotor guide rail (4). The stator (3) is provided with two vibrators, has a V-shaped structure and is positioned in an opening outer frame (2) through a clamp (1) having a flexible hinge, wherein a frame on the outer frame (2) and parallel to the rotor guide rail (4) is provided with an opening. A driving pin of the stator (3) is positioned at the opening of a first frame. The clamping technique is conducive to improve the stability of the motor structure and increase the output power and the output efficiency of the ultrasonic motor.
Description
Technical field
The present invention relates to a kind of novel linear ultrasound electric machine assembling and clamping technology, belong to the ultrasound electric machine technical field.
Background technology
Linear ultrasonic motor is a kind of novel electrical micro-machine that develops rapidly and use the eighties in 20th century; It utilizes the inverse piezoelectric effect and the elastomeric ultrasonic vibration of piezoelectric element; And through the rubbing action between stator and the mover; The macroscopical straight line (rotation) that converts elastomeric micro breadth oscillation to mover moves, and directly promotes load.It has compact conformation, low-speed big, response is fast, positioning accuracy is high and advantage such as Electro Magnetic Compatibility.Have a wide range of applications in Aero-Space, weaponry and accurate driving field.
The research and development of present domestic linear ultrasonic motor is very fast, and colleges and universities such as Tsing-Hua University, Nanjing Aero-Space University, Harbin Institute of Technology have successively launched research to linear ultrasonic motor.Online at Chinese patent, published annular standing wave linear ultrasonic motor [200510046044.9], prism longitudinal bend composite vibrator linear supersonic motor [200610132316.1], triangle bended plate type piezoelectric straight line ultrasound electric motor [200710045921.X], H shape standing wave linear ultrasonic motor oscillator [200820014739.8] etc. successively since 2004.In recent years, Nanjing Aero-Space University succeeded in developing column structure dual-wheel foot driving linear ultrasonic motor and electric excitation method thereof [200710020963.8], based on K shape linear ultrasonic motor [200810124426.2] of continuous amplitude transformer principle etc.But existing ultrasound electric machine still has deficiencies such as power output is little, efficient is low, the life-span is short.Through consulting, some linear ultrasonic motor need lean on spring and rigid body to form labyrinth to carry out clamping, and is provided with incorrectly, can produce unnecessary moving and rotating, and can not guarantee the normal operation of motor.
The clamp position of linear ultrasonic motor stator is to influence its stability and the key factor of delivery efficiency.Linear ultrasonic motor mainly carries out clamping through the supporter of spring support stator or stator at present.This clamp method is at supporter and be used for fixing between the housing of stator and inevitably have the gap; There is relative rubbing action in ultrasound electric machine in the work at retained part, has increased the non-linear of stator vibration; Need to consider the installation site of spring, take a large amount of structure spaces, process consuming time, assembling complicacy simultaneously.
The research of the clamping of ultrasound electric machine at present reports that seldom the patent of this respect also seldom.Patent [CN101728972A], proposed the clamp method about linear ultrasonic motor based on the clamping and positioning device of the K shape linear ultrasonic motor of continuous amplitude transformer principle, this method remains the method for clamping based on spring and guide rail.The present invention is reduced to stator, mover, hold assembly and loading part four parts with electric machine structure, and hold assembly comprises holder and attachment screw, and stator is fixed on the folder frame through holder, flexible hinge.This invention has improved the stability of electric machine structure, the clamping device before having optimized.In addition, replace the effect of spring, and eliminated the nonlinear contact of gap and stator and housing through flexible hinge.
Summary of the invention
Technical problem to be solved by this invention provides a kind of clamp method of new linear ultrasonic motor, has improved the vibration characteristics of stator, has eliminated the mode overlapping phenomenon.
The present invention realizes goal of the invention through following technical scheme:
A kind of linear ultrasonic motor clamping and positioning device based on flexible hinge; Comprise stator and mover guide rail; Have two oscillators on the stator, the V-shaped structure of said stator is positioned in the opening housing through the holder that has flexible hinge; Frame parallel with the mover guide rail on the said opening housing is provided with opening, and the driving foot of said stator is positioned the opening part of opening housing.
The described holder that has flexible hinge is the U-shaped structure; Comprise the flexible circular arc fragment and the supporting arm that are located at its two ends and middle part; And the thickness of flexible circular arc fragment less than other part of structure, forms flexible hinge out and away, has through hole at the arm tail place of the holder that has flexible hinge; The holder that has flexible hinge is installed on the opening housing through through hole; Supporting arm is vertical with stator two oscillators respectively, and each supporting arm back of the body is positioned between the two adjacent piezoelectric ceramic piece groups of corresponding oscillator, and is fixed together through pretension bolt.
Beneficial effect:
The present invention structurally is integrally formed the supporting frame of stator and stator through the flexible hinge connection, and no longer there is relative CONTACT WITH FRICTION in stator (stator supporter) with open frame; On mechanical characteristic, substitute spring through flexible hinge, can apply suitable precompression equally; At aspect of performance, the existence of flexible hinge reduce supporting frame in the contact position nonlinear interaction of (fixed point).Above-mentioned clamp method has improved the vibration characteristics of stator, has eliminated the mode overlapping phenomenon.
This technology applies to the ultrasound electric machine field to flexible circular arc fragment cleverly, has simplified traditional clamping technology, has saved the space, connects stator through the flexible clip gripping member, and attachment screw is fixed on the flexible clip gripping member on the housing.The flexible clip gripping member is designed to circular-arc, helps processing like this, and simultaneously, stressed when guaranteeing stator vibration is continuous variation.This flexibility clamping and housing are connected to solid, have prevented that stator from producing other unnecessary displacement and vibrations when vibration, and the use of this clamping technology helps to improve the stability of electric machine structure, improves the power output and the delivery efficiency of ultrasound electric machine.
The flexibility of V-arrangement ultrasonic straight line motor is retained as the U-shaped structure, and flexible circular arc fragment is with at its two ends and middle part, and the thickness of its flexible circular arc fragment less than other part of structure, forms flexible hinge out and away.Arm tail at supporting arm has manhole, and supporting arm is installed on the rectangle housing through the manhole on the arm tail; Flexible hinge has replaced the effect of traditional line ultrasound electric machine spring, has eliminated because of a series of destabilizing factors such as gap that spring brings, frictions.Flexible circular arc fragment on the neutral line can be eliminated erection stress, reduces interfering with each other of two stators.
Description of drawings
Fig. 1 is the structural representation that is used for V-arrangement linear ultrasonic motor clamping device of the present invention.
Fig. 2 is the structural representation that has the holder of flexible hinge of the present invention.
Label title among the figure: the 1. holder that has flexible hinge; 2. opening housing; 3. stator; 4. mover guide rail, 5. flexible circular arc fragment, 6. supporting arm, 7. pretension bolt, 8 arm tails.
Embodiment
As shown in Figure 1; A kind of clamping and positioning device of the linear ultrasonic motor based on flexible hinge comprises stator 3 and mover guide rail 4, has two oscillators on the stator 3; Said stator 3 V-shaped structures; Be positioned in the opening housing 2 through the holder 1 that has flexible hinge, be provided with opening with mover guide rail 4 parallel frames on the said opening housing 2, the driving foot of said stator 3 is positioned the opening part of opening housing 2.The holder 1 that has flexible hinge is the U-shaped structure; Comprise the flexible circular arc fragment 5 and the supporting arm 6 that are located at its two ends and middle part, and the thickness of flexible circular arc fragment 5 forms flexible hinge out and away less than other part of structure; Arm tail 8 places at holder 1 have through hole; Holder 1 is installed on the opening housing 2 through through hole, and supporting arm 6 is vertical with 3 liang of oscillators of stator respectively, and each supporting arm 6 is positioned between the two adjacent piezoelectric ceramic piece groups of corresponding oscillator; And be fixed together through pretension bolt 7, so flexible circular arc fragment 5 distortion that move through of Langevin-type transducer realize.
This device has limited displacement and the rotation of stator 3 in all directions, has guaranteed the accuracy of stator 3 motions, thereby can reduce the idle work of stator 3, raises the efficiency.The flexible circular arc fragment 5 that has holder 1 two ends of flexible hinge plays spring action for stator 3, mover guide rail 4 when applying precompression; And the flexible circular arc fragment 5 that has on holder 1 neutral line of flexible hinge can be eliminated the erection stress in stator 3 assemblings, reduces interacting between two Langevin-type transducers.
Claims (1)
1. clamping and positioning device based on the linear ultrasonic motor of flexible hinge; Comprise stator (3) and mover guide rail (4), have two oscillators on the stator (3), it is characterized in that: the V-shaped structure of said stator (3); Be positioned in the opening housing (2) through the holder (1) that has flexible hinge; Said opening housing (2) is gone up and is provided with opening with the parallel frame of mover guide rail (4), and the driving foot of said stator (3) is positioned the opening part of opening housing (2), and the described holder (1) that has flexible hinge is the U-shaped structure; Comprise the flexible circular arc fragment (5) and the supporting arm (6) that are located at its two ends and middle part; And the thickness of flexible circular arc fragment (5) less than other part of structure, forms flexible hinge out and away, locates to have through hole at the arm tail (8) that has the holder of flexible hinge (1); The holder (1) that has flexible hinge is installed on the opening housing (2) through through hole; Supporting arm (6) is vertical with stator (3) two oscillators respectively, and each supporting arm (6) is positioned between the two adjacent piezoelectric ceramic piece groups of corresponding oscillator, and is fixed together through pretension bolt (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105560887A CN101984550B (en) | 2010-11-24 | 2010-11-24 | Flexible hinge based clamping and positioning device for linear ultrasonic motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105560887A CN101984550B (en) | 2010-11-24 | 2010-11-24 | Flexible hinge based clamping and positioning device for linear ultrasonic motor |
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| Publication Number | Publication Date |
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| CN101984550A CN101984550A (en) | 2011-03-09 |
| CN101984550B true CN101984550B (en) | 2012-07-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010105560887A Expired - Fee Related CN101984550B (en) | 2010-11-24 | 2010-11-24 | Flexible hinge based clamping and positioning device for linear ultrasonic motor |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102931873B (en) * | 2012-11-02 | 2016-04-06 | 南京航空航天大学 | A kind of small all-in-one parallel rotation ultrasonic motor |
| CN103944445A (en) * | 2014-04-24 | 2014-07-23 | 南京航空航天大学 | Linear ultrasonic motor clamping positioning device with one end supported in hinged mode |
| RU2617631C2 (en) | 2015-09-30 | 2017-04-25 | Акционерное общество "Лаборатория Касперского" | Method for detection working malicious software runned from client, on server |
| CN105958860B (en) * | 2016-06-21 | 2017-12-05 | 中国地震局地震研究所 | Linear electric motors falling bodies mechanism for absolute gravimeter |
| CN106208806B (en) * | 2016-07-06 | 2018-03-09 | 西安交通大学 | The rotatory inertia piezoelectric actuator and start method of the mechanism of tandem drive containing Double Diamond |
| CN109100106B (en) * | 2018-09-04 | 2024-04-19 | 苏州盛拓半导体科技有限公司 | Electric linear vibration platform |
| CN110768571B (en) * | 2019-04-08 | 2022-08-23 | 浙江师范大学 | Bionic creeping type piezoelectric precision driving device based on parasitic inertia principle |
| CN112260578B (en) * | 2020-09-02 | 2022-01-04 | 广州大学 | Low-voltage driving V-shaped linear ultrasonic motor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1484370A (en) * | 2003-07-30 | 2004-03-24 | 哈尔滨工业大学 | Ultrasonic motor travelling wave driving vibrator capable of realizing straight line or rotate movement |
| CN200987127Y (en) * | 2006-10-30 | 2007-12-05 | 苏州市职业大学 | K-shaped straight line ultrasonic motor |
| CN101656489A (en) * | 2009-09-04 | 2010-02-24 | 华南农业大学 | Linear ultrasonic motor with V-shaped prism composite oscillator |
| CN101728972A (en) * | 2010-01-14 | 2010-06-09 | 南京航空航天大学 | Clamping and positioning device of K-shaped linear ultrasonic motor based on continuous amplitude transformer principle |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201854206U (en) * | 2010-11-24 | 2011-06-01 | 南京航空航天大学 | Flexure-hinge-based clamping and positioning device for linear ultrasonic motor |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1484370A (en) * | 2003-07-30 | 2004-03-24 | 哈尔滨工业大学 | Ultrasonic motor travelling wave driving vibrator capable of realizing straight line or rotate movement |
| CN200987127Y (en) * | 2006-10-30 | 2007-12-05 | 苏州市职业大学 | K-shaped straight line ultrasonic motor |
| CN101656489A (en) * | 2009-09-04 | 2010-02-24 | 华南农业大学 | Linear ultrasonic motor with V-shaped prism composite oscillator |
| CN101728972A (en) * | 2010-01-14 | 2010-06-09 | 南京航空航天大学 | Clamping and positioning device of K-shaped linear ultrasonic motor based on continuous amplitude transformer principle |
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| CN101984550A (en) | 2011-03-09 |
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