Gecko-like bionic dry adhering device

Abstract

The invention provides a gecko-like dry adhering device. The gecko-like dry adhering device comprises a main structure, wherein the upper end of the main structure is coaxially connected with an upper structure, the upper end surface of the upper structure is uniformly provided with four sliding holes in the circumferential direction, each sliding hole is connected with an adhering structure which comprises a guide pipe, a base, a steel wire and an adhering part, one end of the guide pipe stretches into the sliding hole, the other end of the guide pipe is connected with the base, the lower end of the base is arranged on the main structure through an elastic supporting structure in parallel, the adhering part is arranged on the upper end surface of the base, and the steel wire penetrates through two ends of the guide pipe and is connected with the adhering part and the bottom part of the sliding hole; the lower end surface of the main structure is provided with a rotating motor and a rotating disc which are connected, and the rotating disc is connected with the bases through bracing wires. According to the gecko-like bionic dry adhering device disclosed by the invention, requirements on preload and relative sliding between the preload and an adhering surface in adhering are realized, a requirement that an angle between an adhering material and the adhering surface reaches 30 degree is realized in absorption removing, and the gecko-like bionic dry adhering device has the advantages that the adsorption force is larger, the adhering effect is good, repeated use can be realized, and the using range is wide.

Description

technical field [0001] The invention relates to the technical field of design of an adhesion mechanism, in particular to a reusable gecko-like bionic dry adhesion device used in a space environment. [0002] Background technique [0003] Large geckos in nature can move freely on ceilings or walls, mainly relying on its walking mechanism and special bristle structure on the soles of its feet. In 2000, American Autumn et al. published an article in "Nature", measuring the adhesion force of a single nanoscale gecko setae, and proved that the adhesion force between the setae and the adsorption surface is the van der Waals force between molecules. This adhesion mechanism belongs to biomimetic dry adhesion. At this stage, the adhesion methods mainly include the following methods: vacuum adsorption, magnetic adsorption, electrostatic adsorption, viscous adsorption, mechanical chain adsorption, bionic wet adsorption and bionic dry adhesion. When vacuum adsorption is in contact wi...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problems in the prior art that the adhesion device is not strong, the adhesion effect is poor, it cannot be reused, and it is not suitable for the space environment, the present invention provides a gecko-like bionic dry adhesion device, which includes a main structure. The upper end of the main structure is coaxially connected with an upper structure, and the upper end surface of the upper structure is evenly distributed with a number of sliding holes perpendicular to the upper structure in the circumferential direction, and each of the sliding holes is connected with an adhesive structure, and the main structure A rotating assembly for rotating the adhesive structure in a plane perpendicular to the adhesive surface is also provided on the lower end; wherein the adhesive structure includes:

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