Aiming at the cargo handling problem of the low floors uninstalled the elevator in the daily life
it is necessary to design an intelligent service robot to climb ladder.The gravity center regulating system is the key device of the robot to climb the stairs.It used the designing robot can adjust the center of gravity of robot between the deformation wheels and the rear wheels and keep the force uniform of four wheels in the plains and climbing the stairs.When the robot climbing stairs
the center of gravity transfers to front wheel direction by the servo rotating a certain angle to drive connecting rod
increasing the grip of the front wheels
reducing rear wheel stress to improve the stability of climbing and handling.The stair climbing test of physical prototype is completed in the actual terrain. The designed gravity center regulating system of climbing robot can solve the robot walking and the cargo handling problems on the plains
the ladder and in different environments is verified by practice.