Passive self-adaptive distributed human body gravity unloading system

Abstract

The invention discloses a passive self-adaptive distributed human body gravity unloading system. Modular grading is performed according to continuous mass characteristics of a human body, and the main body adopts a pure passive mechanism which is formed by combining a two-free air floating platform, a scissor type main constant force system and a self-adaptive distributed human body gravity unloading system. Horizontal two-degree-of-freedom large-range movement of the whole human body is achieved through a two-degree-of-freedom air floating platform and an air floating guide rail; a scissor type main constant force system is formed by connecting a scissor mechanism and a zero-rigidity mechanism in series, and large-range vertical movement and constant unloading force are provided in the vertical direction. According to the self-adaptive distributed human body gravity unloading system, a tree-shaped bifurcated zero-stiffness structure is combined with a scissor type auxiliary constant force system to achieve local multi-degree-of-freedom movement of the trunk of the four limbs of the human body, a multi-point distributed gravity unloading strategy is adopted, the additional joint force and the triggering muscle force during training of the astronaut are effectively reduced, and the trueness and the immersion of the micro-low gravity simulation training of the astronaut are improved.

Description

technical field [0001] The invention belongs to the technical fields of aerospace micro-low gravity simulation, sports training, fitness and entertainment, mechanical engineering, etc., and specifically relates to a passive self-adaptive distributed human body gravity unloading system. Background technique [0002] my country's manned spaceflight project is developing rapidly, and space station construction, on-orbit construction, and on-orbit maintenance require more astronauts to enter space; internationally, NASA announced a manned landing plan on Mars, and SpaceX launched a plan for private transportation and interstellar travel. The activities gradually expanded to space. The low-gravity environment of space will cause various negative effects on the human body, including poor balance, changes in limb movement patterns, and muscle atrophy, which seriously affect the safety, health, and work efficiency of astronauts. In order to ensure the health and effectiveness of ast...

AI Technical Summary

Problems solved by technology

However, most of the existing suspension systems adopt single-cable or few-cable schemes, and lack the distributed unloading analysis and design of multiple suspension points. Low-gravity immersion is reduced; at the same time, there are many training equipment for a single motion mode, such as upright walking, jumping, etc., and there is a lack of research on continuous adaptive gravity unloading training equipment for astronauts' autonomous multi-sport modes

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