Patent ID: 7921581

Claim:
An apparatus for excavating and transporting away soil material, comprising: two impeller wheels ( 12 , 14 ) which can be rotated about an axis of rotation (y) in a direction of rotation (u), with a conically extending guide surface ( 20 ) arranged about the axis of rotation (y) in a rotationally symmetrical manner and with guide vanes ( 22 ) which project radially from the conically extended guide surface ( 20 ) and which form an acute angle with respect to the axis of rotation (y), and a conveyor belt ( 18 ) for transporting away excavated material ( 41 ), said conveyor belt being arranged between the impeller wheels ( 12 , 14 ), said conveyor belt ( 18 ) having a conveying direction (x) which is at a right angle with respect to the axis of rotation (y), wherein, the conically extending guide surface ( 20 ) of the impeller wheels ( 12 , 14 ) having a narrowed end adjoining the conveyor belt ( 18 ) and forming a run-off surface for the excavated material ( 41 ), wherein, the guide vanes ( 22 ) are bounded by two lateral edges ( 24 , 26 ) which are parallel to one another, and the width of the guide vanes ( 22 ) corresponds substantially to the width of the conically extending guide surface ( 20 ), and wherein an inner lateral edge ( 24 ) of the guide vanes ( 22 ) adjoins a fixed guide plate ( 30 ) at least in a region below the conveyor belt ( 18 ).