January 2025
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The lower limb exoskeleton rehabilitation robot is a type of robot that can assist patients with motor dysfunction caused by stroke in limb movement and rehabilitation training. In response to the limited applicability and low flexibility of current lower limb exoskeleton robots, this paper designs a highly adaptable lower limb exoskeleton robot through Solidworks, which has the characteristics of continuous leg length adjustment and structural simplification. The robot has a single lower limb with 3 degrees of freedom, using only the minimum but necessary degrees of freedom to achieve walking motion, thereby reducing the complexity of the mechanism. In addition, the design also avoids the negative impact of joint size on human health and foot movement, and introduces a waist width adjustment mechanism to adapt to users of different body types. Finally, using Ansys Workbench finite element analysis software, static and modal analyses were conducted on different stages of robot motion. The experimental results showed that this design scheme can achieve effective force distribution throughout the entire walking cycle, verifying the feasibility of the structural design.