[go: up one dir, main page]

CN203225675U - Bidirectional-driving linear ultrasonic motor - Google Patents

Bidirectional-driving linear ultrasonic motor Download PDF

Info

Publication number
CN203225675U
CN203225675U CN 201320241824 CN201320241824U CN203225675U CN 203225675 U CN203225675 U CN 203225675U CN 201320241824 CN201320241824 CN 201320241824 CN 201320241824 U CN201320241824 U CN 201320241824U CN 203225675 U CN203225675 U CN 203225675U
Authority
CN
China
Prior art keywords
ultrasonic
elliptical vibration
vibration
ultrasonic motor
elliptical
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 201320241824
Other languages
Chinese (zh)
Inventor
殷振
李华
曹自洋
李艳
谢鸥
汪帮富
任坤
陈玉荣
张峰
吕自强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzhou University of Science and Technology
Original Assignee
Suzhou University of Science and Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Suzhou University of Science and Technology filed Critical Suzhou University of Science and Technology
Priority to CN 201320241824 priority Critical patent/CN203225675U/en
Application granted granted Critical
Publication of CN203225675U publication Critical patent/CN203225675U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)

Abstract

本实用新型公开了一种双向驱动直线超声电机,动子包括滑条和设置在滑条表面的摩擦层;定子包括支架、通过支架固定的两个相同的超声振动换能器、两个相同的椭圆振动模态转换器和设置在椭圆振动模态转换器前端两个相同的摩擦驱动块,椭圆振动模态转换器设置在超声换能器的前端,其整体为圆柱形,上下两侧开设有三个错位分布的矩形缺口,将超声振动换能器产生的纵向超声振动转换为椭圆振动模态转换器末端及摩擦驱动块的椭圆振动,两个超声振动换能器分别进行工作时,驱动动子进行双向连续直线运动。

Figure 201320241824

The utility model discloses a two-way drive linear ultrasonic motor. The mover includes a sliding bar and a friction layer arranged on the surface of the sliding bar; the stator includes a bracket, two identical ultrasonic vibration transducers fixed by the bracket, two identical The elliptical vibration mode converter and two identical friction drive blocks are arranged at the front end of the elliptical vibration mode converter. The elliptical vibration mode converter is set at the front end of the ultrasonic transducer. A rectangular notch with a dislocation distribution converts the longitudinal ultrasonic vibration generated by the ultrasonic vibration transducer into the elliptical vibration of the end of the elliptical vibration mode converter and the friction drive block. When the two ultrasonic vibration transducers work separately, the drive mover Carry out two-way continuous linear motion.

Figure 201320241824

Description

一种双向驱动直线超声电机A Bidirectional Drive Linear Ultrasonic Motor

技术领域 technical field

本实用新型涉及利用压电陶瓷逆压电效应的超声电机领域,尤其是涉及一种双向驱动直线超声电机。 The utility model relates to the field of ultrasonic motors utilizing the inverse piezoelectric effect of piezoelectric ceramics, in particular to a two-way driving linear ultrasonic motor.

背景技术 Background technique

直线超声电机是20世纪80年代迅速发展和应用的一种新型微电机,是利用压电材料的逆压电效应实现电能-机械能转换的机电耦合装置,通过定子和动子之间的摩擦作用,把弹性体的微幅振动转换成动子的宏观直线(旋转)运动,直接驱动负载。因其具有体积小、重量轻、低速大扭矩、噪声小、响应快、定位精度高、无电磁干扰和环境适应性强等优点,在医疗、航空航天、机器人、MEMS 等技术领域得到了日益广泛的应用。 The linear ultrasonic motor is a new type of micro-motor developed and applied rapidly in the 1980s. It is an electromechanical coupling device that uses the inverse piezoelectric effect of piezoelectric materials to convert electrical energy to mechanical energy. Through the friction between the stator and the mover, Convert the micro-vibration of the elastic body into the macroscopic linear (rotational) motion of the mover to directly drive the load. Because of its small size, light weight, low speed and high torque, low noise, fast response, high positioning accuracy, no electromagnetic interference and strong environmental adaptability, it has been increasingly widely used in medical, aerospace, robotics, MEMS and other technical fields. Applications.

单激励模态转换型超声电机是超声电机的一种,它是利用一组压电陶瓷元件的激励,通过特殊结构的模态转换器使定子产生具有两种振动模态分量的复杂振动。如果这两个振动模态之间存在一定的相位差且频率相近,定子和转子接触界面上定子的端面质点就会产生椭圆轨迹振动,从而通过定子和转子之间的摩擦获得转子的运动和扭矩。利用模态转换原理制作的超声电机只需要一组控制电路及其驱动电源,控制驱动系统简单,制造成本、控制难度均可得到降低。 The single-excitation mode-conversion ultrasonic motor is a kind of ultrasonic motor. It utilizes the excitation of a group of piezoelectric ceramic elements to make the stator generate complex vibration with two vibration modal components through a mode converter with a special structure. If there is a certain phase difference between the two vibration modes and the frequency is similar, the end surface particle of the stator on the contact interface between the stator and the rotor will generate an elliptical trajectory vibration, thereby obtaining the motion and torque of the rotor through the friction between the stator and the rotor . The ultrasonic motor made by using the mode conversion principle only needs a set of control circuit and its driving power supply, the control driving system is simple, and the manufacturing cost and control difficulty can be reduced.

目前国内直线超声电机的研究发展很快,清华大学、南京航空航天大学、哈尔滨工业大学等高校先后对直线超声电机展开了研究。自2004年以来,中国专利网陆续刊登了环形驻波直线超声电机【200510046044.9】、棱柱型纵弯复合振子直线超声电机【200610132316.1】、三角形弯板式压电直线超声电机【200710045921.X】、H形驻波直线超声电机振子【200820014739.8】、圆柱结构双轮足驱动直线超声电机及电激励方法【200710020963.8】、基于连续变幅杆原理的K形直线超声电机【200810124426.2】等专利。但是现有的直线超声电机存在着结构复杂、输出功率小、制造困难、对制造装配要求较高、成本较高和寿命短等不足。这些问题制约了它们在工业生产中的应用。 At present, research on linear ultrasonic motors in China is developing rapidly. Universities such as Tsinghua University, Nanjing University of Aeronautics and Astronautics, and Harbin Institute of Technology have successively launched research on linear ultrasonic motors. Since 2004, China Patent Network has successively published the ring standing wave linear ultrasonic motor [200510046044.9], the prismatic longitudinal bending composite vibrator linear ultrasonic motor [200610132316.1], the triangular bent plate piezoelectric linear ultrasonic motor [200710045921.X], the H-shaped Standing wave linear ultrasonic motor vibrator [200820014739.8], cylindrical structure double wheel foot driven linear ultrasonic motor and electric excitation method [200710020963.8], K-shaped linear ultrasonic motor based on the principle of continuous horn [200810124426.2] and other patents. However, the existing linear ultrasonic motors have disadvantages such as complex structure, low output power, difficult manufacture, high requirements for manufacturing and assembly, high cost and short life. These problems restrict their application in industrial production.

发明内容 Contents of the invention

本实用新型提供了一种新型的双向驱动直线超声电机,目的是为了克服上述直线超声电机中存在的不足。 The utility model provides a novel two-way drive linear ultrasonic motor, which aims to overcome the shortcomings of the above-mentioned linear ultrasonic motor.

一种双向驱动直线超声电机,包括定子和动子,动子包括滑条和设置在滑条表面的摩擦层;所述的定子包括支架、通过支架固定的两个相同的超声振动换能器、两个相同的椭圆振动模态转换器和两个相同的摩擦驱动块;超声振动换能器包括螺栓及依次套设在螺栓上的后盖板、压电陶瓷片、电极片和前盖板,前盖板和螺栓通过螺纹联接将后盖板、压电陶瓷片、电极片和前盖板压紧固定,构成了双向驱动直线超声电机的能量转换部分,将A超声电源和B超声电源输出的超声电能转换为超声换能器的超声振动能量。 A bidirectional drive linear ultrasonic motor, including a stator and a mover, the mover includes a slide bar and a friction layer arranged on the surface of the slide bar; the stator includes a bracket, two identical ultrasonic vibration transducers fixed by the bracket, Two identical elliptical vibration mode converters and two identical friction drive blocks; the ultrasonic vibration transducer includes bolts and rear cover plates, piezoelectric ceramic sheets, electrode sheets and front cover plates that are sequentially sleeved on the bolts, The front cover and the bolts are screwed together to press and fix the rear cover, piezoelectric ceramic sheet, electrode sheet and front cover, which constitutes the energy conversion part of the bidirectional drive linear ultrasonic motor, and the output of the A ultrasonic power supply and the B ultrasonic power supply The ultrasonic electrical energy is converted into ultrasonic vibration energy of the ultrasonic transducer.

所述的椭圆振动模态转换器和前盖板制作成一个整体设置在前盖板的前端,或者利用附加的联接螺柱将椭圆振动模态转换器联接在前盖板的前端,椭圆振动模态转换器整体为圆柱形,其上下两侧开设有三个错位分布的矩形缺口,设置矩形缺口的目的是为了改变超声振动换能器的振动模态,使其纵向振动模态频率和弯曲振动模态频率接近或相等,将超声振动换能器产生的纵向超声振动转换为椭圆振动模态转换器末端的纵弯复合超声椭圆振动。 The elliptical vibration mode converter and the front cover are made as a whole and arranged on the front end of the front cover, or the elliptical vibration mode converter is connected to the front end of the front cover by using additional connecting studs, and the elliptical vibration mode The state converter is cylindrical as a whole, and there are three rectangular notches with misplaced distribution on the upper and lower sides. The purpose of setting the rectangular notches is to change the vibration mode of the ultrasonic vibration transducer, so that the longitudinal vibration modal frequency and the bending vibration mode The modal frequency is close to or equal, and the longitudinal ultrasonic vibration generated by the ultrasonic vibration transducer is converted into longitudinal-bending composite ultrasonic elliptical vibration at the end of the elliptical vibration mode converter.

所述的摩擦驱动块通过焊接或粘接方式设置在椭圆振动模态转换器的前端,摩擦驱动块与滑条上的摩擦层相接触。两个超声振动换能器通过支架和超声振动换能器的法兰盘联接在一起,且支架用来固定定子和安装预压力装置,将定子和动子连接成一整体构成双向驱动直线超声电机,经法兰盘和支架固定后的两个超声振动换能器轴线之间夹角为20度~160度。 The friction driving block is arranged on the front end of the elliptical vibration mode converter by welding or bonding, and the friction driving block is in contact with the friction layer on the slide bar. The two ultrasonic vibration transducers are connected together through the bracket and the flange of the ultrasonic vibration transducer, and the bracket is used to fix the stator and install the pre-pressure device, and connect the stator and the mover as a whole to form a bidirectional drive linear ultrasonic motor. The angle between the axes of the two ultrasonic vibration transducers fixed by the flange plate and the bracket is 20 degrees to 160 degrees.

在未加超声电压信号驱动前,两个椭圆振动模态转换器前端的摩擦驱动块10同时与动子接触。 Before being driven by an ultrasonic voltage signal, the friction drive blocks 10 at the front ends of the two elliptical vibration mode converters are in contact with the mover at the same time.

驱动时,其中一个超声换能器悬浮,另外一个超声换能器工作。即是:向需要悬浮的超声换能器电极片送入直流负压电信号,利用压电效应使该超声振动换能器轴向收缩,进而使椭圆振动模态转换器前端的摩擦驱动块悬浮在动子上。向另外一个需进行驱动工作的超声换能器送入超声正弦电信号,如把超声电源输出的超声电信号接入到超声振动换能器的电极片,该超声振动换能器即产生超声振动,超声振动能量从超声振动换能器传递到椭圆振动模态转换器末端后,转换为具有一定相位差的纵向振动和弯曲振动复合的纵弯复合超声椭圆振动,即转换为椭圆振动模态转换器末端的纵弯复合超声椭圆振动;并驱动摩擦驱动块和椭圆振动模态转换器末端一起做超声椭圆振动,进而驱动动子进行连续直线运动。 When driving, one of the ultrasonic transducers is suspended while the other is working. That is: send a DC negative piezoelectric signal to the electrode piece of the ultrasonic transducer that needs to be suspended, and use the piezoelectric effect to make the ultrasonic vibration transducer shrink axially, thereby suspending the friction drive block at the front end of the elliptical vibration mode converter on the mover. Send an ultrasonic sinusoidal electrical signal to another ultrasonic transducer that needs to be driven. For example, if the ultrasonic electrical signal output by the ultrasonic power supply is connected to the electrode sheet of the ultrasonic vibration transducer, the ultrasonic vibration transducer will generate ultrasonic vibration. , after the ultrasonic vibration energy is transmitted from the ultrasonic vibration transducer to the end of the elliptical vibration mode converter, it is converted into longitudinal and bending composite ultrasonic elliptical vibration with a certain phase difference, that is, converted into elliptical vibration mode conversion The longitudinal bending compound ultrasonic elliptical vibration at the end of the device; and drive the friction drive block and the end of the elliptical vibration mode converter to perform ultrasonic elliptical vibration together, and then drive the mover to perform continuous linear motion.

当需要动子向另一个方向直线运动时,交换两个超声换能器的超声电信号驱动方式即可。相比现有文献介绍的双向驱动直线超声电机,该直线超声电机具有功率容量大、能量转换效率高、结构简单,制造容易、成本低、结构刚度大、控制驱动系统简单和振动性能稳定等优点。 When the mover needs to move linearly in another direction, it is sufficient to exchange the ultrasonic electric signal driving modes of the two ultrasonic transducers. Compared with the bidirectional drive linear ultrasonic motor introduced in the existing literature, the linear ultrasonic motor has the advantages of large power capacity, high energy conversion efficiency, simple structure, easy manufacture, low cost, high structural rigidity, simple control drive system and stable vibration performance. .

更进一步,所述的双向驱动直线超声电机的两个超声振动换能器均分别有一组纵向振动压电陶瓷片。 Furthermore, the two ultrasonic vibration transducers of the two-way drive linear ultrasonic motor each have a set of longitudinal vibration piezoelectric ceramic sheets.

更进一步,所述的双向驱动直线超声电机的两个超声振动换能器均分别需一路超声电信号激励。 Furthermore, the two ultrasonic vibration transducers of the two-way driving linear ultrasonic motor need to be excited by an ultrasonic electric signal respectively.

本实用新型采用了机械振动模态转换机理把超声换能器的纵向振动转换为椭圆振动模态转换器的纵弯复合超声椭圆振动,简化了双向驱动直线超声电机的整体结构,大大降低了振动系统的复杂程度,降低了制造、装配难度和生产成本,整个双向驱动直线超声电机结构简单、制造容易,有利于微型化目标的实现;另外该实用新型的两个超声换能器均只需一路控制电路及超声电信号进行激励,控制难度低,避免了多相超声振动复合形成椭圆振动换能器的复杂超声电源开发费用,简化了控制电路及超声电源结构,降低了控制电路及超声电源成本,减小了控制电路及超声电源体积,易于实现控制电路及超声电源的微型化,集成化,提高了可靠性,工作性能更加稳定,应用前景广阔。 The utility model adopts the mechanical vibration mode conversion mechanism to convert the longitudinal vibration of the ultrasonic transducer into the longitudinal bending composite ultrasonic elliptical vibration of the elliptical vibration mode converter, simplifies the overall structure of the two-way drive linear ultrasonic motor, and greatly reduces the vibration The complexity of the system reduces the difficulty of manufacturing and assembly and the production cost. The whole two-way drive linear ultrasonic motor has a simple structure and is easy to manufacture, which is conducive to the realization of the miniaturization goal; in addition, the two ultrasonic transducers of the utility model only need one The control circuit and ultrasonic electric signal are used for excitation, and the control difficulty is low, avoiding the complex ultrasonic power supply development cost of multi-phase ultrasonic vibration compounding to form an elliptical vibration transducer, simplifying the control circuit and ultrasonic power supply structure, and reducing the cost of control circuit and ultrasonic power supply , the size of the control circuit and ultrasonic power supply is reduced, it is easy to realize the miniaturization and integration of the control circuit and ultrasonic power supply, the reliability is improved, the working performance is more stable, and the application prospect is broad.

附图说明 Description of drawings

图1是本实用新型的结构示意图。 Fig. 1 is a structural representation of the utility model.

图2是本实用新型的应用实例示意图。 Fig. 2 is a schematic diagram of an application example of the utility model.

图中标号说明:1.螺栓,2.后盖板,3.压电陶瓷片,4.电极片,5.前盖板,6. 椭圆振动模态转换器,7.矩形缺口,8.滑条,9.摩擦层,10摩擦驱动块,11.支架,12.A超声电源,13.B超声电源 Explanation of symbols in the figure: 1. Bolt, 2. Rear cover, 3. Piezoelectric ceramic sheet, 4. Electrode sheet, 5. Front cover, 6. Elliptical vibration mode converter, 7. Rectangular notch, 8. Slide Bar, 9. Friction layer, 10 Friction driving block, 11. Bracket, 12.A ultrasonic power supply, 13.B ultrasonic power supply

具体实施方式 Detailed ways

结合图1、2所示,一种双向驱动直线超声电机,包括定子和动子,动子包括滑条8和设置在滑条8表面的摩擦层9;所述的定子包括支架11、通过支架11固定的两个相同的超声振动换能器、两个相同的椭圆振动模态转换器和两个相同的摩擦驱动块;超声振动换能器包括螺栓(1)及依次套设在螺栓(1)上的后盖板(2)、压电陶瓷片(3)、电极片(4)和前盖板(5),前盖板5和螺栓1通过螺纹联接将后盖板2、压电陶瓷片3、电极片4和前盖板5压紧固定,构成了双向驱动直线超声电机的能量转换部分,将超声电源12和12输出的超声电能转换为超声换能器的超声振动能量。该双向驱动直线超声电机的两个超声振动换能器均分别有一组纵向振动压电陶瓷片3,压电陶瓷换能器段直径30mm,压电陶瓷片3材料为PZT-8,尺寸为:Ф30×Ф15×5mm,片数为2。 As shown in Figures 1 and 2, a bidirectional drive linear ultrasonic motor includes a stator and a mover, the mover includes a slide bar 8 and a friction layer 9 arranged on the surface of the slide bar 8; 11 Two identical ultrasonic vibration transducers, two identical elliptical vibration mode converters and two identical friction drive blocks are fixed; the ultrasonic vibration transducers include bolts (1) ) on the rear cover (2), piezoelectric ceramic sheet (3), electrode sheet (4) and front cover (5), the front cover 5 and bolt 1 connect the rear cover 2, piezoelectric ceramic Sheet 3, electrode sheet 4 and front cover 5 are compressed and fixed to form the energy conversion part of the bidirectional drive linear ultrasonic motor, which converts the ultrasonic electric energy output by the ultrasonic power supply 12 and 12 into the ultrasonic vibration energy of the ultrasonic transducer. The two ultrasonic vibration transducers of the two-way drive linear ultrasonic motor each have a set of longitudinal vibration piezoelectric ceramic sheets 3, the diameter of the piezoelectric ceramic transducer section is 30mm, the material of the piezoelectric ceramic sheet 3 is PZT-8, and the size is: Ф30×Ф15×5mm , the number of pieces is 2.

所述的椭圆振动模态转换器6和前盖板5制作成一个整体设置在前盖板5的前端,椭圆振动模态转换器6整体为圆柱形,直径15mm,上下两侧开设有三个错位分布的矩形缺口7,三个矩形缺口7宽度为6mm,深度为3mm,三个矩形缺口7的中心距前端面的距离分别为15mm,25mm,35mm。所述的摩擦驱动块10通过粘接设置在椭圆振动模态转换器6的前端,摩擦驱动块10与滑条8上的摩擦层9相接触。两个超声振动换能器通过支架11和超声振动换能器的法兰盘联接在一起,且支架11用来固定定子和安装预压力装置,将定子和动子连接成一整体构成双向驱动直线超声电机,经法兰盘和支架固定后的两个超声振动换能器轴线之间夹角为90度。 The elliptical vibration mode converter 6 and the front cover 5 are made as a whole and arranged on the front end of the front cover 5. The elliptical vibration mode converter 6 is cylindrical as a whole with a diameter of 15mm, and three dislocations are provided on the upper and lower sides. The distributed rectangular notches 7 have a width of 6 mm and a depth of 3 mm. The distances between the centers of the three rectangular notches 7 and the front face are 15 mm, 25 mm, and 35 mm, respectively. The friction driving block 10 is arranged on the front end of the elliptical vibration mode converter 6 by bonding, and the friction driving block 10 is in contact with the friction layer 9 on the slide bar 8 . The two ultrasonic vibration transducers are connected together through the bracket 11 and the flange of the ultrasonic vibration transducer, and the bracket 11 is used to fix the stator and install the pre-pressure device, and connect the stator and the mover as a whole to form a two-way drive linear ultrasonic The motor, the angle between the axes of the two ultrasonic vibration transducers fixed by the flange and the bracket is 90 degrees.

双向驱动直线超声电机的两个超声换能器固有频率相同为25.32KHz,阻抗分别为86和82欧姆,动态电阻为17和15欧姆,两个超声振动换能器均分别需一路超声电信号激励,A超声电源12和B超声电源13,其输出电压范围均为0-400V,电流范围均为0-4A,输出频率均为25.32±0.01KHz,且A超声电源12和B超声电源13在指定频率范围内均具有自动频率跟踪功能。 The two ultrasonic transducers of the two-way drive linear ultrasonic motor have the same natural frequency of 25.32KHz, the impedances are 86 and 82 ohms, and the dynamic resistances are 17 and 15 ohms. The two ultrasonic vibration transducers need to be excited by an ultrasonic electrical signal , A ultrasonic power supply 12 and B ultrasonic power supply 13, the output voltage range is 0-400V, the current range is 0-4A, the output frequency is 25.32±0.01KHz, and the A ultrasonic power supply 12 and B ultrasonic power supply 13 are specified It has automatic frequency tracking function in the frequency range.

在未加超声电压信号驱动前,两个椭圆振动模态转换器6前端的摩擦驱动块10同时与动子接触。 Before being driven by an ultrasonic voltage signal, the friction drive blocks 10 at the front ends of the two elliptical vibration mode converters 6 are in contact with the mover at the same time.

驱动时,向需要悬浮的超声换能器电极片送入直流负压电信号,利用压电效应使该超声振动换能器轴向收缩,进而使椭圆振动模态转换器6前端的摩擦驱动块10悬浮在动子上;向另外一个需进行驱动工作的超声换能器送入超声正弦电信号,当把B超声电源13输出的超声电信号接入到超声振动换能器的电极片4后,该超声振动换能器即产生超声振动,超声振动能量从超声振动换能器传递到椭圆振动模态转换器6末端后,转换为具有一定相位差的纵向振动和弯曲振动复合的纵弯复合超声椭圆振动,即转换为椭圆振动模态转换器6末端的纵弯复合超声椭圆振动;并驱动摩擦驱动块10和椭圆振动模态转换器6末端一起做超声椭圆振动,进而驱动动子进行连续直线运动。运行10分钟后系统达到稳定振动状态,B超声电源13的输出电压为240V,电流为1.45A,动子速度峰值为16.8mm/s。 When driving, send a DC negative piezoelectric signal to the electrode sheet of the ultrasonic transducer that needs to be suspended, and use the piezoelectric effect to make the ultrasonic vibration transducer axially shrink, and then make the friction drive block at the front end of the elliptical vibration mode converter 6 10 is suspended on the mover; send an ultrasonic sinusoidal electrical signal to another ultrasonic transducer that needs to be driven, when the ultrasonic electrical signal output by the B ultrasonic power supply 13 is connected to the electrode sheet 4 of the ultrasonic vibration transducer , the ultrasonic vibration transducer generates ultrasonic vibration, and after the ultrasonic vibration energy is transmitted from the ultrasonic vibration transducer to the end of the elliptical vibration mode converter 6, it is converted into a composite longitudinal vibration and bending vibration with a certain phase difference. Ultrasonic elliptical vibration, which is converted into longitudinal-bending composite ultrasonic elliptical vibration at the end of the elliptical vibration mode converter 6; and drives the friction drive block 10 and the end of the elliptical vibration mode converter 6 to perform ultrasonic elliptical vibration together, and then drives the mover for continuous linear motion. After running for 10 minutes, the system reached a stable vibration state. The output voltage of B ultrasonic power supply 13 was 240V, the current was 1.45A, and the peak velocity of the mover was 16.8mm/s.

交换两个超声换能器的超声电信号驱动方式,运行10分钟后A超声电源12的输出电压为240V,电流为1.50A,动子向另一个方向进行直线运动,其速度峰值为17.1mm/s。 Exchange the ultrasonic electric signal driving mode of the two ultrasonic transducers. After running for 10 minutes, the output voltage of the ultrasonic power supply 12 of A is 240V, and the current is 1.50A. s.

Claims (5)

1. a bi-directional drive linear ultrasonic motor comprises mover and stator, and mover comprises draw runner and is arranged on the frictional layer on draw runner surface; It is characterized in that: stator comprises support, by support fixing two identical ultrasonic vibration transducers, two identical elliptical vibration MODAL TRANSFORMATION OF A device friction-driven pieces identical with two; The ultrasonic vibration transducer comprises that bolt reaches back shroud, piezoelectric ceramic piece, electrode slice and the front shroud that is set in successively on the bolt, and front shroud and bolt are fixed back shroud, piezoelectric ceramic piece, electrode slice and front shroud by thread connection; Described elliptical vibration MODAL TRANSFORMATION OF A device is arranged on the front end of front shroud, its integral body is cylindrical, both sides offer three rectangular indentation that are dislocatedly distributed up and down, described friction-driven piece is arranged on the front end of elliptical vibration MODAL TRANSFORMATION OF A device, and angle is 20 degree ~ 160 degree between two ultrasonic vibration transducer axis after ring flange and support are fixing.
2. a kind of bi-directional drive linear ultrasonic motor according to claim 1, it is characterized in that: described elliptical vibration MODAL TRANSFORMATION OF A device and front shroud are made into the front end that an integral body is arranged on front shroud.
3. a kind of bi-directional drive linear ultrasonic motor according to claim 1 is characterized in that: also comprise the connection double-screw bolt, be used for elliptical vibration MODAL TRANSFORMATION OF A device is connected in the front end of front shroud.
4. a kind of bi-directional drive linear ultrasonic motor according to claim 1, it is characterized in that: described friction-driven piece is arranged on the front end of elliptical vibration MODAL TRANSFORMATION OF A device by welding.
5. a kind of bi-directional drive linear ultrasonic motor according to claim 1, it is characterized in that: described friction-driven piece is by the bonding front end that is arranged on elliptical vibration MODAL TRANSFORMATION OF A device.
CN 201320241824 2013-05-08 2013-05-08 Bidirectional-driving linear ultrasonic motor Expired - Fee Related CN203225675U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320241824 CN203225675U (en) 2013-05-08 2013-05-08 Bidirectional-driving linear ultrasonic motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320241824 CN203225675U (en) 2013-05-08 2013-05-08 Bidirectional-driving linear ultrasonic motor

Publications (1)

Publication Number Publication Date
CN203225675U true CN203225675U (en) 2013-10-02

Family

ID=49252665

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201320241824 Expired - Fee Related CN203225675U (en) 2013-05-08 2013-05-08 Bidirectional-driving linear ultrasonic motor

Country Status (1)

Country Link
CN (1) CN203225675U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103227584A (en) * 2013-05-08 2013-07-31 苏州科技学院 Bidirectional driving linear ultrasonic motor
CN104362895A (en) * 2014-12-09 2015-02-18 苏州科技学院 Singe-stimulating linear ultrasonic motor
CN104410322A (en) * 2014-12-09 2015-03-11 苏州科技学院 Single electric signal excited ultrasound elliptic-vibration multi-vibrator material conveying device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103227584A (en) * 2013-05-08 2013-07-31 苏州科技学院 Bidirectional driving linear ultrasonic motor
CN103227584B (en) * 2013-05-08 2016-03-23 苏州科技学院 A kind of bi-directional drive linear ultrasonic motor
CN104362895A (en) * 2014-12-09 2015-02-18 苏州科技学院 Singe-stimulating linear ultrasonic motor
CN104410322A (en) * 2014-12-09 2015-03-11 苏州科技学院 Single electric signal excited ultrasound elliptic-vibration multi-vibrator material conveying device

Similar Documents

Publication Publication Date Title
CN103414370B (en) Singly encourage linear ultrasonic motor
CN102185519B (en) Mode conversion type piezoelectric thread transmission linear ultrasonic motor
CN103401470B (en) Bi-directional drive linear ultrasonic motor
CN103199731B (en) One singly encourages linear ultrasonic motor
CN103191859B (en) Single driven ultrasonic elliptical vibration transducer
CN103414373B (en) Single stimulated rotation ultrasonic motor
CN103746597A (en) Paster T-shaped dual-feet linear piezoelectric supersonic motor vibrator
CN101860259B (en) Single-electrical signal-stimulated rotation ultrasonic motor
CN203225675U (en) Bidirectional-driving linear ultrasonic motor
CN103227584B (en) A kind of bi-directional drive linear ultrasonic motor
CN203457073U (en) Bidirectionally driven linear ultrasonic motor
CN103208943B (en) A kind of single stimulated rotation ultrasonic motor
CN103414372B (en) Bi-directional drive rotary ultrasonic motor
CN203225674U (en) Single-excitation linear ultrasonic motor
CN203406797U (en) Single excitation linear ultrasonic motor
CN103199735B (en) A kind of bi-directional drive rotary ultrasonic motor
CN203406799U (en) Two-way drive rotary ultrasonic motor
CN204271942U (en) A Bidirectional Drive Linear Ultrasonic Motor
CN204271943U (en) A Single Excitation Linear Ultrasonic Motor
CN104362895B (en) A kind of single excitation linear ultrasonic motor
CN204271934U (en) A single electric signal excitation ultrasonic elliptical vibration multi-vibrator two-way material conveying device
CN203406800U (en) Single Excitation Rotary Ultrasonic Motor
CN204271941U (en) Single excitation ultrasonic elliptical vibration precision conveying device
CN204271933U (en) A single electric signal excitation ultrasonic elliptical vibration multi-vibrator material conveying device
CN203225676U (en) Bidirectional driving rotary ultrasonic motor

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20131002

Termination date: 20160508

CF01 Termination of patent right due to non-payment of annual fee