Upper-and-lower-limb variable-track weight-losing and rehabilitation robot

The invention discloses an upper-and-lower-limb variable-track weight-losing and rehabilitation robot. The upper-and-lower-limb variable-track weight-losing and rehabilitation robot comprises a rack, upper-limb training mechanisms and lower-limb training mechanisms. Each upper-limb training mechanism is characterized in that the upper end of a second connecting rod and a supporting rod form a rotation pair, the lower end of the second connecting rod and the head end of a third connecting rod form a rotation pair, and a first connecting rod with a handle at the top end is inserted into the second connecting rod to form a moving pair and a rotation pair. Each lower-limb training mechanism is characterized in that a pedal is installed on a foot rest, the front end of the foot rest is connected with the front end of a crank to form a rotation pair, the back end of the crank is perpendicularly and fixedly connected with an output shaft of a power mechanism, the middle of the foot rest is connected with the tail end of the corresponding third connecting rod to form a rotation pair, and the back end of the foot rest is connected with a foot rest supporting frame to form a moving pair and a rotation pair. The head ends of the foot rest supporting frames are connected with the upper ends of linear actuators to form rotation pairs, the tail ends of the foot rest supporting frames are connected to the rack to form rotation pairs, and the lower ends of the linear actuators are hinged to the rack. By means of the upper-and-lower-limb variable-track weight-losing and rehabilitation robot, the upper limbs and the lower limbs can be trained in cooperation, and a training track is adjustable.