This
system assists users with walking disabilities in performing exercise training that is equivalent to the walking ability of
healthy individuals. [Solution] The simulated biostep training
robot mainly includes an outer shell,
handrail mechanism, X-direction
cam mechanism, step mechanism, Y-direction
cam mechanism, and base mechanism. By appropriately designing the mounting position of each transmission link,
stroke amplification of the drive end is achieved, and the external dimensions of the X-direction
cam and Y-direction cam are effectively reduced by a factor of six. In addition, by engaging and disengaging the
ratchet plate and the pawl receiving plate, the sole cam is driven in conjunction
clockwise throughout the entire motion cycle, achieving the effect of linked drive of six terminal
degrees of freedom by a single motor. Based on the principles of simulated biokinematics, the mechanical structure is designed as an appropriate constraint
system, and by driving the position of both of the user's feet and the angle of the
ankle joint in conjunction, the step mechanisms of the left and right feet can realize a simulated human
gait biomotion trajectory and changes in forward and backward tilt posture.