Four-degree-of-freedom series-parallel cycling motion simulation platform

Abstract

The invention particularly relates to a four-degree-of-freedom series-parallel cycling motion simulation platform with two-dimensional movement and two-dimensional rotation. The platform comprises a base, a middle executing mechanism and front, back, left and right driving branches; and the middle executing mechanism is formed by sequentially and rotationally connecting a first connecting seat, a first connecting rod, a second connecting rod, a third connecting rod, a fourth connecting rod, a fifth connecting rod and a second connecting seat in pairs, the front driving branch and the rear driving branch each comprise a U-shaped kinematic pair, an electric cylinder assembly and a spherical kinematic pair which are sequentially connected together, the left driving branch and the right driving branch each comprise an electric cylinder assembly, the telescopic ends of the two electric cylinder assemblies are rotationally connected with the second rotating shaft and the sixth rotating shaft correspondingly, and the fixed ends of the two electric cylinder assemblies are rotationally connected with the left baffle and the right baffle of the base through the rotating shafts correspondingly. The platform has the advantages of being simple in structure, high in precision, high in bearing capacity, small in tail end accumulative error, conforming to the characteristics of bicycle riding movement and the like, and can achieve two-dimensional rotation and two-dimensional movement of the tail end under the interaction of the four electric cylinder driving branches.

Description

Technical field [0001] The invention belongs to the field of fitness equipment, and more particularly to a four-dimensional molten-free cycling motion simulation platform with two-dimensional movement and two-dimensional rotation. Background technique [0002] With the rapid improvement of the economy, the overall quality of national life improvement, people began to pay attention to how to improve their quality, sports and fitness have become a major goal of people's healthy life. In the context of low-carbon sustainable development, the concept of green travel is deeply rooted, and the cycling is popular. Bicycle ride has become a new choice for people's fitness with its simple and convenient, high interest. However, with the economic development, the environment has deteriorated, and frequent smog weather has been covered with a shadow, traffic congestion, and unclear driving makes outdoor riding safety. Therefore, many people want to be able to conduct indoor cycling fitness ...

AI Technical Summary

Problems solved by technology

However, currently the more common motion simulator is the Stewart six-degree-of-freedom parallel motion simulator, and there are not many practical riding motion simulation platforms based on the series-parallel hybrid structure with four degrees of freedom.

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