一种新型轮椅脚踏板机构设计分析

Design and Analysis of a New Type of Wheelchair Pedal Mechanism

爬楼轮椅的出现解决了普通轮椅的跨越沟壑和台阶的难题,但由于大多数爬楼轮椅采用背对楼梯的方式,与平时的面对行走方式相反,进而限制了乘坐者的视野,增加了轮椅操作的复杂性,降低了安全性,为了克服爬楼轮椅的这一缺陷,对一种基于变胞原理的轮椅脚踏板机构进行了研究设计。利用自由度和拓扑关系的变化引起的结构变化,通过运动学分析,受力分析,动力学分析,MATLAB软件仿真,UG、Adams联合仿真对其分析,并对其进行尺寸设计,仿真优化,以此提高爬楼轮椅的各项性能。

Climbing the floor wheelchair to solve the problem of common wheelchair and steps across the gully,but because most of the stair climbing wheelchair back to the stairs,contrary to the usual face way of walking,thus limiting the occupant’s vision,increase the complexity of wheelchair operation,reduce the safety,in order to overcome this defect climb the building of a wheelchair,wheelchair pedal mechanism based on the Metamorphic Principle of design,structural changes caused by changes of degree of freedom and topological relation,through kinematics analysis,force analysis,dynamic analysis,MATLAB simulation, analysis of UG, Adams combined with the simulation, and the design of the simulation and optimization,in order to improve the performance of stair climbing wheelchair.