Negative pressure rotating type artificial muscle

Abstract

The invention discloses a negative pressure rotating type artificial muscle. The negative pressure rotating type artificial muscle is made of elastic materials and is overall of a fan-shaped structure, internal air chambers and supporting columns are arrayed in a staggered mode, and the more the air chamber is away from the circle center, the larger the size of the air chambers is; and when the interior of the artificial muscle is vacuum, the circumferential supporting columns of the pneumatic artificial muscle are inserted into the adjacent air chambers, finally, the whole artificial muscle generates the fan-closing movement along the circle center, and the rotating moment is provided. The negative pressure rotating type artificial muscle can be applied to the field, such as medical rehabilitation, software robots, and bionic robots, needing flexible driving.

Description

technical field [0001] The invention belongs to the technical field of pneumatic muscles, in particular to a negative pressure rotating artificial muscle. Background technique [0002] Pneumatic Artificial Muscle (PAM) is a kind of flexible driver, which has the advantages of light weight, high flexibility, convenient use, and no pollution. In recent years, with the further development of bionic technology, people pay more and more attention to the research of pneumatic muscles. As early as the 1950s, American doctor Joseph.L.Mckibben invented a pneumatic artificial muscle called Mckibben, which was the first invention of pneumatic artificial muscle. Since then, researchers from various countries in the world have started research work on pneumatic artificial muscles, such as the Rubbertuator produced by Bridgestone Corporation of Japan, the FiuidicMuscies produced by Festo Corporation of Germany, the air muscles produced by Shadow Corporation of England, and so on. [000...

AI Technical Summary

Problems solved by technology

[0006] Traditional inflatable shortened artificial muscles have the following disadvantages: this type of pneumatic artificial muscle is mainly composed of an inner elastic rubber tube and an outer braided mesh, the dry friction between them and the inelastic deformation of the braided mesh will produce hysteresis, making the artificial muscle The precise control of artificial muscles is very difficult; traditional artificial muscles usually have a "threshold pressure", when the air pressure inside the artificial muscle is less than the "threshold pressure", the artificial muscle cannot perform; The pipe protrudes along the weaving mesh or is damaged at a certain point, and there is even a risk of explosion

This is very inconvenient to use, and the efficiency is not high. Other rigid parts are introduced, which increases the space occupied by the actuator.

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