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Flexible actuating ultrasonic motor

An ultrasonic motor and actuation technology, applied in the direction of generator/motor, piezoelectric effect/electrostrictive or magnetostrictive motor, electrical components, etc. Complexity, smooth transmission, and the effect of preventing damage to parts

Inactive Publication Date: 2012-01-04
SHANGHAI JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing belt drive structure usually requires the rotor friction to drive the belt
The existence of the rotor limits the size reduction and weight reduction of the belt transmission mechanism
Therefore, in some environments with small space, light weight, and easy damage, such as implanting human body environment as the action device of artificial muscles, it is impossible to use the general belt transmission mechanism.

Method used

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  • Flexible actuating ultrasonic motor
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Embodiment Construction

[0014] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings: this embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following example described above.

[0015] Such as figure 1 As shown, in this embodiment, the triangular drive foot is included, there are two guide wheels, and screws are used for common connecting parts. The specific components of this embodiment include: pre-pressure adjustment screw 1, screw support 2, gasket 3, rectangular metal elastic body 4, first piezoelectric ceramic sheet 5, first fixing screw 6, second fixing screw 7, driving foot 8 , a flexible belt 9, a first guide wheel 10, a support wheel 11, a second guide wheel 12, a third fixing screw 13, a fourth fixing screw 14, and a second piezoel...

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Abstract

The invention relates to a flexible actuating ultrasonic motor comprising a stator component and a flexible strap drive structure. The stator component comprises at least one drive foot, the flexible strap drive structure comprises a flexible strap, a support wheel and a guide wheel. The flexible strap is clamped between the support wheel and the drive foot, the drive foot is under the stator component, the support wheel is below the drive foot, the guide wheel is on both sides of the support wheel, the drive foot, the support wheel and the guide wheel are all connected with flexible strap, the flexible moves along the direction determinated by the guide wheel under the friction drive action of the drive foot. The flexible actuating ultrasonic motor is realized by directly driving the flexible strap through ultrasonic actuation, and can be applied in the occasion which has special requirement for the action devices such as narrowness size, light weight and easily damaged.

Description

technical field [0001] The invention relates to an ultrasonic motor in the field of motor technology, in particular to a flexible actuation ultrasonic motor. Background technique [0002] Ultrasonic motor is a new type of driver that uses the inverse piezoelectric effect of piezoelectric ceramics and ultrasonic vibration to convert the microscopic deformation of the material into the macroscopic motion of the rotor or slider through vibration and friction coupling. Compared with the general electromagnetic motor, the ultrasonic motor has Direct output of low speed and high torque, fast transient response, high positioning accuracy, high power density, good control characteristics, not affected by magnetic field, accurate movement, etc. Wide range of applications. In some occasions where flexible output is required, belt transmission mechanisms are usually used now, which have the advantages of smooth transmission, low noise, cushioning, vibration absorption and overload sli...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02N2/04
Inventor 杨明何巍李世阳
Owner SHANGHAI JIAOTONG UNIV