The invention relates to a parallel experimental device for six-degree-of-freedom
gait simulation, which comprises a frame, a six-bar parallel mechanism and a series loading device, wherein the frame is provided with a force-plate-mounting-height adjusting device and a
tendon driving device. The force-plate-mounting-height adjusting device is mounted on a lower platform surface of the frame and comprises four lead screws, four lower nuts, four upper nuts and two force plate mounting racks, the
tendon driving device comprises a motor, a coupler, a reduction gear set, a
sprocket and a chain, the six-bar parallel mechanism comprises a fixed platform, a movable platform, 12 groups of hooke hinges and six identical movement branching chains, and the series loading device comprises a
hydraulic cylinder, a guide rail fixing shaft, a
force sensor and a shin bone connecting shaft
system with an indexing disc, wherein the
hydraulic cylinder is fixed onto a movable platform, and the guide rail fixing shaft is capable of sliding along a sliding groove. The experimental device can not only simulate six-degree-of-freedom movement of shin bones fixed by a loading shaft
system, but also axially
load force (such as gravity, microgravity or the like) to the shin bones, and can be effectively used for researching
ankle dynamics.