Artificial muscle based on high-molecular polymer fiber

Abstract

The invention relates to an artificial muscle based on a high-molecular polymer fiber. The artificial muscle comprises the high-molecular polymer fiber, a temperature adjusting device, a temperature sensor, and a control device, wherein the temperature adjusting device is connected to the high-molecular polymer fiber and is used for adjusting the temperature of the high-molecular polymer fiber; the temperature sensor is arranged to correspond to the high-molecular polymer fiber and is used for detecting the temperature of the high-molecular polymer fiber; the control device is connected to thetemperature sensor and the temperature adjusting device and is used for controlling the temperature adjusting device to increase the temperature or reduce the temperature; the high-molecular polymerfiber generates circumferential torsion and axial shrinkage during heating, and generates circumferential torsion and axial relaxation in the opposite direction during cooling; and the control devicecan perform accurate temperature adjustment and control on the temperature adjusting device through real-time detection of the temperature sensor. By changing the temperature of the high-molecular polymer fiber, spontaneous contraction or relaxation of the high-molecular polymer fiber is promoted, control over displacement and output force of the high-molecular polymer fiber is achieved, and the technical feasibility of the artificial muscle is improved.

Description

technical field [0001] The invention relates to the field of robots, in particular to an artificial muscle based on high molecular polymer fibers. Background technique [0002] The purpose of artificial muscle research is to simulate the human form of force to show the advantages of muscles, and to show all the ideal properties of the muscle-like form factors of natural muscles. More mature technologies now include shape memory alloy actuators and shape memory polymer actuators. These materials contract and expand across their cross-sections through electrical, optical or chemical activation. Since these materials tend to exhibit small strain deformations, large deformations are usually achieved through parallel plate designs. Larger memory polymers have been achieved using stacked designs to increase strain deformation, but these have also resulted in somewhat bulkier actuators. [0003] The existing artificial muscles on the market are made of flexible polymers, which c...

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Problems solved by technology

[0004] However, the aforementioned artificial muscles have certain limitations, such as the high driving voltage required by the electronic electroactive polymer, but the resulting strain is small; the response speed of the ionic electroactive polymer is slow, and it can only Environmental use, artificial muscles are less technically feasible

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