Multi-connection helical spring

Abstract

The invention discloses a spring member, in particular a constraint spring for artificial muscles, i.e. a multiconnection helical spring which is characterized by being provided with a spring wire; the spring is in multilayer distribution along the axial direction to form a stereoscopic shape which is just like being formed by connecting a plurality of cylinders; and the axis of each cylinder is independent, and the section shape is similar to a whole connected by a plurality of rings. The invention provides a spring with a new structure for the mechanical manufacture industry, which has larger support surface than a single helical spring when used as an elastic element for axial stretching and bending, can carry out multishaft guide and be mutually supported, has good structural stability, can prevent torsion deformation or internal force generated when the single helical structure is loaded by being used for radial constraint of the artificial muscles, can adopt parallel connection of two, three, four or more integrated columnar helical springs wound by one spring wire in structure, and has high popularization and application values and favorable market potential.

Description

technical field [0001] The present invention relates to a spring component, more specifically, to a constraining spring for artificial muscles. Background technique [0002] In the machinery manufacturing and instrumentation industry, springs are used to control the movement of parts, ease the impact, reduce vibration, store energy, and measure the magnitude of force. They are widely used. [0003] At present, artificial muscles are widely used in robotics, medical, military and industrial fields as the driving components of bionic joints and manipulators. Chinese patent ZL200810116379.7 discloses a radially expanding artificial muscle, and Chinese patent ZL97110134.5 discloses an axially elongating artificial muscle. The radial expansion artificial muscle uses fiber braided mesh as the constraining element, resulting in a large volume, which limits its application in small joints. The existing axially elongated artificial muscle uses high-strength fiber helix to form a tub...

AI Technical Summary

Problems solved by technology

The radial expansion artificial muscle uses fiber braided mesh as the constraining element, resulting in a large volume, which limits its application in small joints. The existing axially elongated artificial muscle uses high-strength fiber helix to form a tubular constraint. When the lumen of the structure is inflated, the helix twists around its axis, creating unwanted internal forces or macroscopic twists that affect muscle use

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