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Linear ultrasonic motor

A linear ultrasonic motor, integrated technology, applied in the direction of generator/motor, electrical components, piezoelectric effect/electrostrictive or magnetostrictive motor, etc., can solve the problems of structure and principle limitations, inconvenient miniaturization, etc., and achieve Ease of miniaturization, ease of operation, and ease of processing

Inactive Publication Date: 2012-06-13
HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, most of the above-mentioned types of ultrasonic motors are not convenient for miniaturization due to the limitations of their own structures and principles. Therefore, it is hoped to provide a linear ultrasonic motor with a simple structure, easy processing, and easy miniaturization.

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Embodiment Construction

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0039] The invention provides a linear ultrasonic motor, which has a simple structure, is convenient for processing, is convenient for miniaturization, and meets user requirements.

[0040] The content of the technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0041] figure 1 It is an assembly diagram of the linear ultrasonic motor of the present invention.

[0042] figure 1 The meanings ...

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Abstract

The invention discloses a linear ultrasonic motor comprising a pedestal, a guide rail, a slide block, a piezoelectric vibrator, a positioning cantilever, and a positioning support. The pedestal is used for fixing the guide rail and the positioning support. The piezoelectric vibrator is used for generating mechanical oscillation under voltage excitation. The guide rail is used for supporting and constraining movement of the slide block. The positioning support and the positioning cantilever are cooperated with each other and are used for fixing the piezoelectric vibrator. The piezoelectric vibrator contains a metal elastomer that is provided with the set number of holes with a set shape, so that frequency of first-order longitudinal vibration is close to frequency of second-order bending vibration of the piezoelectric vibrator as well as amplitudes of the first-order longitudinal vibration and the second-order bending vibration are increased; and the mechanical oscillation generated by the piezoelectric vibrator drives the slide block to make linear movements. According to the above-mentioned technical scheme provided in the invention, the linear ultrasonic motor has a simple structure as well as can be processed and miniaturized conveniently; and a user demand can also be met.

Description

technical field [0001] The invention belongs to the field of electromechanical technology, and in particular relates to a linear ultrasonic motor with bending and longitudinal composite modes. Background technique [0002] The ultrasonic motor is a new type of power equipment that uses the inverse piezoelectric effect of piezoelectric ceramics to convert the microscopic deformation of the material into the macroscopic motion of the rotor or guide rail through the conversion and coupling of various stretching vibration modes through resonance amplification and friction coupling. The operating frequency of the ultrasonic motor is generally above 20kHz, which is one of the reasons why it is called an ultrasonic motor. Linear ultrasonic motor is a kind of ultrasonic motor, which can directly generate linear motion and direct output thrust. The linear ultrasonic motor has the characteristics of simple structure, large force or torque / mass ratio, sensitive start and stop, high po...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02N2/02H02N2/04
Inventor 胡泓万志坚
Owner HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
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