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Minitype rod traveling wave type ultrasonic motor

An ultrasonic motor, rod-type technology, applied in the direction of generator/motor, piezoelectric effect/electrostrictive or magnetostrictive motor, electrical components, etc. problems, to achieve the effect of compact structure, high processing and assembly, easy installation and application

Inactive Publication Date: 2005-04-13
JIANGSU FENGKE ULTRASONIC MOTORS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing rod-type traveling wave motor has a large design volume and is inconvenient to install and fix, which greatly limits the application of this motor

Method used

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  • Minitype rod traveling wave type ultrasonic motor
  • Minitype rod traveling wave type ultrasonic motor

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Embodiment Construction

[0009] The invention is a novel ultrasonic motor developed based on the piezoelectric effect of the piezoelectric ceramic sheet to excite the second-order bending vibration mode of an elastic beam with one end fixed and one end free. It is mainly composed of three parts: stator, rotor and shell. Fig. 1 is the concrete structure schematic diagram of the present invention, as can be seen from the figure, the stator of motor is made piezoelectric ceramic group 3 (total 5 pieces) / electrode sheet group 2 (total 6 pieces) by base 1 and upper counterweight 4, through base The screw on the shaft compresses to form an elastic beam. The base is glued to the shell to form a boundary condition where one end of the vibrator is fixed and the other end is free. In this way, the installation of the motor is more convenient and reliable, and the working mode of the motor will not be affected by the installation position. Last counterweight 4 becomes band outer ring groove. The groove size a...

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Abstract

A micro-rod traveling wave supersonic motor is composed of a stator part including screwing tightly the piezoelectric ceramic set and electrode plates by the base and the up balance block with a crew rod on the base. The rotor part is composed of a rotor, a bearing and a disk spring. The shell part is composed of a holddown and a shell. The pre-pressure of the stator and rotor is applied by pressing the disk spring with press blocks. When a certain AC voltage is inlet into the motor in supersonic frequency, the top surface mass points on the top balance block of the stator form elliptic movement, a friction is generated between the rotor and stator since pre-pressure exists between them. The power is output by the rotor shaft.

Description

Technical field: [0001] The micro rod type traveling wave ultrasonic motor of the present invention belongs to the ultrasonic motor in the field of micro motors. Background technique: [0002] Ultrasonic motor is a new type of micro motor using the inverse piezoelectric effect of piezoelectric ceramics and ultrasonic vibration. Among them, the rod type traveling wave ultrasonic motor belongs to a kind of traveling wave ultrasonic motor. Because ultrasonic motors have more unique advantages than traditional motors when they are smaller in size, miniaturization is the development trend of ultrasonic motors. The existing rod-type traveling wave motor has a large design volume and is inconvenient to install and fix, which greatly limits the application of this motor. Invention content: [0003] The purpose of the present invention is to develop a miniature rod type traveling wave ultrasonic motor with smaller volume, easier processing, assembly and use, higher efficiency and...

Claims

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Application Information

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IPC IPC(8): H02N2/10
Inventor 赵淳生朱华
Owner JIANGSU FENGKE ULTRASONIC MOTORS TECH
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