Full-cut heading machine

A full-cut heading machine, comprising:

• a drill head configured for drilling hard rock in a mine, said drill head comprising extraction tools (2) and being rotationally mounted about an axis of rotation extending in a driving direction of the heading machine;
• and
• downstream extraction tools (5) configured to produce a floor widened in a floor region of the mine,
• wherein
• the downstream extraction tools (5) are distributedly arranged on shells of rollers rotationally mounted transversely to the axis of rotation of the drill head, and substantially parallelly to a plane of the floor.

A full-cut heading machine, comprising:

• a drill head configured for drilling hard rock in a mine, said drill head comprising extraction tools (2) and being rotationally mounted about an axis of rotation extending in a driving direction of the heading machine;
• and
• downstream extraction tools (5) configured to produce a floor widened in a floor region of the mine,
• wherein
• the downstream extraction tools (5) are arranged on shells and on end faces of rollers rotationally mounted transversely to the axis of rotation of the drill head, and substantially parallelly to a plane of the floor,
• the extraction tools (2) and the downstream extraction tools (5) are roller bits,
• two of said rollers are rotationally mounted at a position outside a vertical longitudinal central plane of the heading machine,
• an axial length of each of said two rollers is between 60 and 70% of a length of a radius of the drill head,
• the downstream extraction tools (5) are mounted on the shells of the rollers with axes of rotation of the downstream extraction tools (5) extending substantially parallelly to axes of rotation of the rollers,
• axial distances between the downstream extraction tools (5) distributedly arranged on the shells are 75 to 100% of radial distances between the extraction tools (2) of the drill head,
• the rollers are drivable for rotation from the floor upwardly to a mine face of the mine,
• and wherein the heading machine further comprises:
• a carrier coupled with the drill head, wherein one or more of the drill head and the carrier carries one or more of chutes and folding shovels configured to take up excavated material and said one or more of chutes and folding shovels are movable onto a haulage device via a discharge site, and
• a slide-like floor support extending from an end of said heading machine facing the mine face, said floor support being arranged beyond a projection of the axes of rotation of the rollers onto the floor, and in a vertical longitudinal central plane of the heading machine.