Surface miner with tilting superstructure for depth control

A surface miner, comprising:

• a three-caterpillar chassis with two front oscillating caterpillar elements arranged in parallel to one another in the direction of mining and one rear steerable oscillating caterpillar element;
• a frame shaped substructure, said three oscillating caterpillar elements of said caterpillar chassis are connected to one another in a statically determined three-point support by said frame-like substructure, a rear part of said support on said rear steerable oscillating caterpillar element includes a rotating fork with a rotating connection and an actuating element provided between said oscillating caterpillar and said substructure to achieve a steering movement;
• a superstructure arranged on said substructure in a three-point support, wherein one support point above the said rear steerable oscillating caterpillar element is formed by a support ball and the other two supports in the area of said two front oscillating caterpillar elements are formed by two linear adjusting cylinders, which can be actuated independently from one another, and two outer slideways are provided for centering and a compensating movement of said superstructure in relation to said substructure;
• a milling roller module with a milling roller acting as the mining member is arranged under the said superstructure in a front area in front of said three-caterpillar chassis, said milling roller rotating around a horizontal axis of rotation at substantially right angles to the direction of travel and extends over substantially the entire width of the miner;
• a discharge belt adjacent to said milling roller in the direction of conveying said discharge belt being led from said milling roller module between said front oscillating caterpillar elements through the superstructure to a rear area of the miner;
• a loading belt arranged downstream of said discharge belt;
• a loading boom, said discharge belt being joined with said loading belt in a pivotable and height-adjustable manner for conveying;
• drive units for the independent operation of the miner;
• and
• a drive container with a driver stand placed on said drive container arranged on said superstructure.