Continuous track-mounted, self-propelled open-cast mining machine

A self-propelled, continuous track mounted, continuously operating mining device for strip mining, comprising:

• a drum-shaped mining element having a circumferential surface;
• cutting tools pivotally connected to said circumferential surface;
• an opening formed in said circumferential surface defining a feed chute;
• a discharge conveyor, said discharge conveyor being arranged at least partially within said drum-shaped mining element positioned extended axially with respect to said drum-shaped mining element, said discharge conveyor having a discharge end connected with an additional conveyor;
• flight means associated with each of said cutting tools for delivering mined material to said chute, each of said flight means and said cutting tools including a first operative side and a second operative side for mining during rotation of said drum-shaped mining element in either direction.

A continuous track mounted, self-propelled continuously operable open-cast mining machine, comprising:

• a drum-shaped mining element including a plurality of cutting bars joined with rotatable ring members by conical rings bearing radially arranged ribs, said cutting bars being arranged in a substantially axial pattern on the circumference of the drum, teeth holders arranged connected to said cutting bars, teeth supported by said teeth holders, each teeth holder supporting teeth pointing in the direction of rotation of the drum and supporting teeth pointing in a direction opposite to the direction of rotation of the drum, said teeth pointing in the direction of rotation of the drum automatically pivoting into a cutting position as they engage the material to be extracted and said teeth pointing in the direction opposite to the direction of rotation of the drum automatically pivoting out of a clearance angle zone, said drum including flights connected to said cutter bars, a curved liner positioned within said cutting drum including a feed chute, said feed chute receiving mined material from said flights as said cutting drum is rotated, said feed chute being connected to a discharge belt arranged axially inside said cutting drum;
• and an additional conveyor belt connected to said discharge belt, said additional conveyor belt being positioned outside of said cutting drum, wherein said cutting drum is mounted on both sides on large-diameter anti-friction bearings, said cutting drum including a gear wheel on at least one side, said gear wheel engaging pinions of the cutting drum drive, said anti-friction bearings and said gear wheels lying within the cutting drum on at least one side of the mining machine.