Motion control device for bridge maintenance car

The utility model relates to the field of bridge maintenance, in particular to a motion control device of a bridge maintenance vehicle. The utility model provides a motion control device for a bridge maintenance vehicle, which can ensure the driving safety speed of a main frame and prevent the main frame from colliding with a pier due to too high speed. A motion control device for a bridge maintenance vehicle comprises a main frame, a vertical frame, a handrail, a control box, frame modules, a traveling module and the like, the vertical frame is connected to the left side of the main frame, the handrail is connected to the upper side of the vertical frame, the control box is connected to the middle of the main frame, the frame modules are arranged on the front portion and the rear portion of the vertical frame, and the traveling module is arranged on the right portion of the vertical frame. When the laser distance measuring sensor detects that the distance between the maintenance car and the pier is ten meter