具有下肢训练功能的手推助力助行器设计

Design of Manpowered Walking Aid with Function of Training Lower Limbs

长期下肢瘫痪或不便于行走的患者,常常会发生下肢肌肉萎缩的问题。本文设计了一部拥有辅助训练功能的手推助力助行器,采用双偏置曲柄滑块六杆步态机构驱动,使腿部被动运动,实现模拟正常人行走的步态,以防止肌肉萎缩,利于康复。基于Creo/Parametric优化设计模块对步态机构运动尺寸进行优化设计。采用有限元法对支撑框架结构进行强度和刚度校核。

The person who was lower limb paralysis or inconvenient to walk,often troubled by muscle amyotrophy.The paper designs a manpowered walking aid with the function of training lower limbs,which help the foot moving with the double offset slider crank mechanism passive.The device is helpful of simulating the pace of normal person,avoiding the muscle amyotrophy,and is benefit to the rehabilitation.The paper design the lengths of bars of the double offset slider crank mechanism with the optimum design method,and check the strength and stiffness of the framework of the wheelchair with the finite element method.