| 摘要 |
A mining machine that has an elongated frame member and a mining assembly attached thereto for dislodging material from a seam upon contact therewith. The mining machine is equipped with at least one first propulsion member for propelling the mining machine on a surface. In addition, a second propulsion member is pivotally attached to the frame member and is selectively pivotable between a first retracted position adjacent the top portion of the frame member and a second extended position wherein the second propulsion member engages the roof of an entry formed by the mining machine to provide additional propulsion to the mining machine. The mining machine is also equipped with a conveying apparatus for conveying dislodged material from the front portion of the frame member to the rear portion thereof for discharge therefrom. In the alternative, the mining machine may be equipped with propulsion members that can selectively engage the side walls of the entry or the mining machine may have an integral self-propelled propulsion module attached thereto to provide additional thrust and traction to the mining machine. |
