| 摘要 |
<p>A gantry-type mobile mining machine (10) includes a cutterwheel (12) having an axis of rotation substantially parallel to the tunnel work face and carried by a boom assembly (20) pivotally movable about an axis also substantially parallel to the tunnel work face and to the cutterwheel axis of rotation. A rotation assembly (38, 42, 44) supports the boom assembly and cutterwheel and causes rotation of the cutterwheel (12) and the boom assembly (20) about an axis substantially perpendicular to the tunnel work face and to the cutterwheel axis of rotation. A transverse assembly (46) supported on a frame (88a, 88b) causes traverse movement of the cutterwheel (12), boom assembly (20) and rotation assembly (38, 42, 44) on the frame (88a, 88b). Thrust cylinders (76) thrust forward as a unit the cutterwheel, boom assembly and rotation assembly relative to the frame. A holding assembly (58a, 58b, 62a, 62b) secures the frame in the tunnel during thrusting by the thrust cylinders (76). A transport assembly (112) supports and moves the frame of the machine.</p> |
