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Flexible hinge based clamping and positioning device for linear ultrasonic motor

A technology of linear ultrasonic motor and flexible hinge, which is applied in the direction of piezoelectric effect/electrostrictive or magnetostrictive motor, generator/motor, electrical components, etc., which can solve complex assembly, time-consuming processing, and few ultrasonic motors, etc. problems, to achieve the effect of improving vibration characteristics, eliminating mode overlap, and eliminating phenomena

Inactive Publication Date: 2011-03-09
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Application Information

AI Technical Summary

Problems solved by technology

This clamping method inevitably has a gap between the support and the outer frame used to fix the stator; the ultrasonic motor in operation has relative friction in the clamping part, which increases the nonlinearity of the stator vibration; the spring needs to be considered The installation position occupies a large amount of structural space, and at the same time, the processing is time-consuming and the assembly is complicated
[0005] At present, there are few research reports on the clamping of ultrasonic motors, and there are few patents in this area

Method used

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  • Flexible hinge based clamping and positioning device for linear ultrasonic motor
  • Flexible hinge based clamping and positioning device for linear ultrasonic motor
  • Flexible hinge based clamping and positioning device for linear ultrasonic motor

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Embodiment Construction

[0018] Such as figure 1 As shown, a clamping and positioning device for a linear ultrasonic motor based on a flexible hinge includes a stator 3 and a mover guide rail 4. There are two vibrators on the stator 3, and the stator 3 has a V-shaped structure. The clamping part 1 is positioned in the open frame 2, and the open frame 2 is provided with an opening on the frame parallel to the mover guide rail 4, and the driving foot of the stator 3 is positioned at the opening of the open frame 2. The clip 1 with a flexible hinge is a U-shaped structure, including flexible arc segments 5 and support arms 6 at both ends and in the middle, and the thickness of the flexible arc segments 5 is much smaller than other parts of the structure, A flexible hinge is formed, and a through hole is opened at the arm tail 8 of the clamping part 1. The clamping part 1 is installed on the opening frame 2 through the through hole, and the supporting arms 6 are respectively perpendicular to the two oscil...

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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 [0001] The invention relates to a novel linear ultrasonic motor assembly and clamping technology, which belongs to the technical field of ultrasonic motors. Background technique [0002] The linear ultrasonic motor is a new type of micro-motor developed and applied rapidly in the 1980s. It uses the inverse piezoelectric effect of the piezoelectric element and the ultrasonic vibration of the elastic body, and through the friction between the stator and the mover, the elastic The micro-vibration of the body is converted into the macroscopic linear (rotational) motion of the mover, which directly pushes the load. It has the advantages of compact structure, high torque at low speed, fast response, high positioning accuracy and electromagnetic compatibility. It has broad application prospects in aerospace, weapon equipment and precision drive fields. [0003] At present, research on linear ultrasonic motors in China is developing rapidly. Universities such as Ts...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02N2/04
Inventor 姚志远胡宁焦阳
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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