Self-locking high-precision rotary drive motor
A rotary drive, high-precision technology, applied in the direction of generators/motors, piezoelectric effect/electrostrictive or magnetostrictive motors, electrical components, etc., can solve the problems of small output torque and inability to brake, and achieve output The effect of large torque, enhanced driving capacity, and improved load capacity
Inactive Publication Date: 2012-02-08
UNIV OF SCI & TECH OF CHINA
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Problems solved by technology
For the rotary piezoelectric motor, the current research mainly focuses on the ultrasonic motor USM (including traveling wave motor and standing wave motor, etc.), the common feature is that its output torque is small, it cannot be braked, and it cannot meet some needs for large driving force. and occasions where self-locking braking is required
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[0023] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0024] Such as figure 1 As shown, the structure of the present invention mainly includes: friction disc 1, output shaft 2, arc-shaped telescopic elements 3, 4, self-locking telescopic elements 6, and clamping telescopic elements 5, 7. Friction sheets 8, 9, 10 of a certain thickness are all installed on the contacting surfaces of the clamping telescopic elements 5, 7, the self-locking telescopic element 6 and the friction disc 1. It can be seen from the figure that the corresponding mechanisms are symmetrically installed on the upper and lower surfaces of the friction disc, and the corresponding mechanisms are also symmetrically installed on the same surface and evenly distributed. This not only increases the output torque, but also ensures the output of a symmetrical couple moment.
[0025] The friction disc 1 and the output shaft 2 are co...
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The invention relates to a self-locking high-precision rotary drive motor, which is suitable for miniature or small, large torque, arbitrary stroke, high-precision, self-locking, bidirectional rotation occasions, and belongs to the field of electromechanical technology. In the technical solution of the present invention, a driving composite mechanism composed of longitudinal self-locking telescopic elements, arc-shaped telescopic elements, and longitudinal clamping telescopic elements is adopted. These composite mechanisms are symmetrically distributed in groups. Through clamping, telescoping and self-locking, the direct drive to the friction disc is realized, thereby driving the rotation of the output shaft. In the case where rotation is not required, the pose can be maintained through a self-locking mechanism. The output torque is above hundreds of N·cm. The invention can be used in the fields of industrial driving, mechanical processing, biological instruments and the like, and is especially suitable for use in the occasions of driving joints of various types of robots and maintaining dynamic and static postures.
Description
technical field [0001] The invention relates to a piezoelectric motor, which is a miniature, high torque, arbitrary stroke, high precision, self-locking, bidirectional rotating piezoelectric motor, belonging to the electromechanical technical field. Background technique [0002] Piezoelectric motor is a new type of drive motor developed in recent years. It is a micro-drive motor made of piezoelectric ceramic inverse piezoelectric effect. It has the characteristics of small size, large thrust, high precision, high displacement resolution, and fast response. For the rotary piezoelectric motor, the current research mainly focuses on the ultrasonic motor USM (including traveling wave motor and standing wave motor, etc.), the common feature is that its output torque is small, it cannot be braked, and it cannot meet some needs for large driving force. And occasions where self-locking braking is required. Contents of the invention [0003] The purpose of the present invention is...
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IPC IPC(8): H02N2/00H02N2/10H02N2/12
Inventor 关胜晓汪增福张江涛
Owner UNIV OF SCI & TECH OF CHINA