Mechanism Design and Kinematics Analysis of a Hybrid-driven Waist Rehabilitation Robot

Yin Guangcai; Zi Bin; Chen Qiao; Li Yuan

doi:10.16578/j.issn.1004.2539.2016.04.015

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Mechanism Design and Kinematics Analysis of a Hybrid-driven Waist Rehabilitation Robot

更新时间：2022-10-20

- Mechanism Design and Kinematics Analysis of a Hybrid-driven Waist Rehabilitation Robot
- Vol. 40, Issue 4, Pages: 68-73(2016)
- 作者机构：
  
  1. 合肥工业大学机械与汽车工程学院
- 作者简介：
- 基金信息：
- DOI：10.16578/j.issn.1004.2539.2016.04.015
  CLC：
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[1]尹光才,訾斌,陈桥,李元.混合驱动腰部康复机器人机构设计及运动学分析[J].机械传动,2016,40(04):68-73.

Yin Guangcai, Zi Bin, Chen Qiao, et al. Mechanism Design and Kinematics Analysis of a Hybrid-driven Waist Rehabilitation Robot. [J]. 40(4):68-73(2016)
[1]尹光才,訾斌,陈桥,李元.混合驱动腰部康复机器人机构设计及运动学分析[J].机械传动,2016,40(04):68-73. DOI： 10.16578/j.issn.1004.2539.2016.04.015.

Yin Guangcai, Zi Bin, Chen Qiao, et al. Mechanism Design and Kinematics Analysis of a Hybrid-driven Waist Rehabilitation Robot. [J]. 40(4):68-73(2016) DOI： 10.16578/j.issn.1004.2539.2016.04.015.

摘要

针对人体腰部的步态康复训练,设计了一种柔索气动肌肉混合驱动腰部康复机器人。通过对人体躯干在步态时运动状态的分析,确定康复机器人的基本功能要求。据此对康复机器人进行机械结构设计,使用双并联机构分别对人体腰部和下肢进行牵引驱动,并且采用柔性驱动,综合气动肌肉和柔索的驱动特点,不仅增加了康复机器人的适应性,还防止了受训人在训练过程中受到强迫性伤害。为验证机构的上述特点,使用封闭矢量环法计算了位姿逆解,并建立了速度雅可比矩阵。建立了考虑人体尺寸的康复机器人运动学模型和气动肌肉组件动力学模型,数值仿真得出步态时柔索、气动肌肉运动学性能以及气动肌肉组件力输出变化规律曲线,验证了机构的有效性。

Abstract

A cable-pneumatic-muscle hybrid-driven waist rehabilitation robot is designed for human waist and gait rehabilitation training.The presented data and curves indicate that the state of motion of human torso during normal walking and the rehabilitation robotics fundamental functions are confirmed.According to these,the structure of the rehabilitation robot that employed the double parallel mechanism is designed.The cable- driven parallel mechanism is chosen to drive the human lower limb,and the pneumatic muscle（PM） is chosen to twist the human waist.The adaptability and safety of the rehabilitation robot is enhanced by synthesized the features of the two actuators.The inverse kinematics are solved by using the closed-vector-circle method,and the velocity Jacobian matrix is established.In addition,the rehabilitation robotics kinematics model and the PM element thermodynamics model are established in view of the parameters of different trainers is diverse.Then the kinematics character of cables and PM during the normal walking are obtained through numerical simulation,and the force variation trend of PM elements is also simulated to verify the feasibility of mechanism.

关键词

康复机器人步态训练柔索气动肌肉混合驱动运动学分析

Keywords

Rehabilitation robotGait trainingCable-pneumatic-muscle hybrid driveKinematics analysis

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