| 摘要 |
A continuous mining machine comprising a forward cutter assembly connected for horizontal pivotal movements with respect to a rearward assembly mounted on the endless track assembly. The cutter assembly includes a central frame and a pair of said frames mounted on the central frame for independent pivotal movement about a pair of axes generally parallel with each other extending in a longitudinal direction corresponding generally to the forward direction of movement of the forward assembly with respect to the mine face. An elongated shaft is rotatalby mounted on each of the side frames so as to extend longitudinally from a position adjacent the rearward portion of the associated side frame forwardly thereof to an extent such that a forward end portion of each shaft extends forwardly of the associated side frame. A speed reducing units is mounted on each side frame between the associated shaft and the associated pivotal axis in driving relation with respect to the rearward portion of the associated shaft. An electric motor is mounted on each side frame between the associated shaft and the associated pivotal axis forwardly of the associated speed reducing unit in driving reltion thereto. The hydraulic ram units which effect the swinging movement of the cutter assembly are detachably mounted so as to enable the same to be operated in such a way that contracting and extending movements are utilized to effect removal and installation of the motor and speed reducing unit on the corresponding side frame rather than pivotal movements of the cutter assembly.
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