Human Lower Limb Rehabilitation Training Machine Synthesis And Analysis Of Structures

Study on lower extremity rehabilitation medical institutions is in recent years is of concern in the field, which covers the medical, bionics, artificial intelligence, information analysis mathematics, engineering computing science disciplines. For the rehabilitation of mechanical design, not only is design from the design point of view to consider the issue, but also combine with patient’s own situation, for the designer must have more knowledge, especially in mechanical design is particularly important, and the need to develop with the rehabilitation program. For patients with rehabilitation therapy can play a guiding role, but also can be very good to help the doctor to do some help. Therefore, it has important practical significance for the study of rehabilitation equipment.In this paper, we designed a mechanism which can help the body to realize self healing. First of all, the research at home and abroad, the research status of medical rehabilitation agencies, technical problems, future trends, combined with the design for design significance and technical difficulties facing the need to draw lessons from the advantage of systematic research, for the basic structural size of the lower limb of the human body, and human stride to walk the position and angle changes were analyzed. Analysis of the establishment of the human lower limb rehabilitation robot conditions and on this basis, make the human lower limb rehabilitation mechanism scheme. And for the rehabilitation of lower extremity of each joint motion mechanism analysis, ratio for the degree of freedom of organization, and the mechanical structure of the theory analysis, and then through the Pro / e established 3D model of the linkage mechanism, and the driving mode and used materials, motor type selection is described.Secondly, for lower limb rehabilitation mechanism kinematics is analyzed. The mechanism is simplified separately for each joint of the mechanical mechanism of the degrees of freedom were calculated, and the position of each joint is inverse solution, the velocity and acceleration analysis.Finally, the simulation analysis for the mechanism, first can get the driving displacement curve, rod length with MATLAB programming calculation speed curve and acceleration curve. And the model are imported into Pro/E built into the ADAMS and kinematics simulation analysis. The correctness of the theoretical derivation is proved by the calculation by MATLAB the long rod displacement curve, acceleration curve and velocity curve and produced by ADAMS simulation curves were compared, two sets of curves exactly the same.And mechanism motion generated by the displacement curve, velocity and acceleration curves of can be seen are some smooth transition curve, there is no large fluctuations. As a result, institutional in rehabilitation training does not produce a greater impact, through the theory analysis is of important practical significance for the lower limbs rehabilitation institutions of the actual design work.