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An Elastic Blade Type Ultrasonic Motor Running in Two Directions

A technology of ultrasonic motors and elastic blades, applied in piezoelectric effect/electrostrictive or magnetostrictive motors, generators/motors, electrical components, etc., can solve problems such as the complexity of the motor structure design process, and achieve simple structure, The effect of avoiding wear and tear and improving stability

Inactive Publication Date: 2017-06-16
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In recent years, the research on composite ultrasonic motors has mainly focused on longitudinal-bending composite type, longitudinal-torsion composite type, longitudinal-bending-torsion composite type, and radial-torsion composite ultrasonic motor, and these motors need to consider two different modes in the design. Tuning problems complicate the structural design process of the motor

Method used

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  • An Elastic Blade Type Ultrasonic Motor Running in Two Directions
  • An Elastic Blade Type Ultrasonic Motor Running in Two Directions

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings.

[0022] An elastic vane type ultrasonic motor operating in both directions, such as figure 1 As shown, it includes an end cover 2, a housing 3, a base 13, a rotor 5, a first stator, a second stator and a rotating shaft 14; the shape of the rotor 5 is cylindrical, and the stator is arranged in the rotor 5; The first stator is fixedly bonded to the rotating shaft 14 through the second connecting plate 6, and the second stator is installed on the base 13; the stator includes piezoelectric ceramics and metal rings, and several elastic blades are evenly fixed on the The outer surface of the metal ring is arranged on the inner surface of the rotor 5 and rigidly connected with the rotor, and the angle between the normal line of the fixed point where the elastic blade is installed on the outer surface of the metal ring and the elastic blade is 25-35 degrees At the same time, t...

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Abstract

The invention discloses a two-way running elastic blade type ultrasonic motor, comprising an end cover (2), a casing (3), a base (13), a rotor (5), a first stator, a second stator and a rotating shaft (14) The shape of the rotor (5) is cylindrical, the first stator is fixedly bonded to the rotating shaft (14) through the second connecting plate (6), and the second stator is installed on the base (13) , and the stator is arranged in the rotor (5); the stator includes piezoelectric ceramics, metal rings, and elastic blades, and the elastic blades are fixedly installed on the outer surface of the metal ring, while the elastic blades and the rotor (5) The energy transmission between the stator and the rotor is realized through a rigid contact connection; and the piezoelectric ceramics are bonded on the inner side of the metal ring. The invention has all the advantages of the standing wave ultrasonic motor, and at the same time, the motor can realize bidirectional operation, and the structure is simple and easy to install.

Description

technical field [0001] The invention is a bidirectionally running standing wave ultrasonic motor, which belongs to the technical field of ultrasonic motor manufacturing. Background technique [0002] Compared with traditional electromagnetic motors, ultrasonic motors have significant characteristics such as low speed and high torque, no electromagnetic interference, fast action response, and no noise in operation. application prospects, and has been successfully applied in engineering. [0003] The structure design of the ultrasonic motor is flexible, and the ultrasonic motor with different structures can be constructed by using different polarization forms of piezoelectric ceramics and vibration modes of elastic bodies. The composite ultrasonic motor only needs a set of piezoelectric ceramic single-phase excitation, has a simple structure, and is easier to realize miniaturization design, so it has extremely broad application prospects. In recent years, the research on com...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02N2/12H02N2/10
Inventor 徐志科董晓霄胡敏强金龙潘非非
Owner SOUTHEAST UNIV
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