HEAVY CRAWLER TRUCK WITH ELECTRIC DRIVE Russian patent published in 2000 - IPC

FIELD: drilling rigs. SUBSTANCE: heavy crawler truck with electric drive is designed for mounted drilling rig unit on foundation, removing it from foundation, hauling and control in process of movement. Truck has frame with support members, lifting hydraulic cylinder, oil tank mounted on frame for side rolling on trunnion hinge-secured on crossmember whose ends terminate in axle-shafts by means of which wheel rests on track. Truck has two drives, each being mechanically coupled with hydroelectromechanical brake and with driving sprocket coupled with track to provide movement both of truck with electric drive, and loading mass (weight) and permit transportation of large-size heavy units of drilling rig. EFFECT: enlarged operating capabilities. 4 cl, 10 dwg