Control for mining machine

Details Control for mining machine Control for mining machine

1985-04-22

1986-05-13

Novosad, Stephen J.

Mining or in situ disintegration of hard material

Automatic control; signaling or indicating

Of hard material disintegrating machine

299 75, E21C 3508, E21C 3524

Patent

active

045882304

ABSTRACT:
A control for a mining machine having means for traversing a ground surface and a universally-pivotal carrier arm of variable length which carries at its forward end a cutter drum. A displacement pickup is responsive to forward or aft movement of the cutter drum with respect to the ground surface. Means are connected to the displacement pickup for producing a first signal when said cutter drum has moved forwardly in an amount substantially equal to its length and for thereafter producing a second signal when the cutter drum is moved backwardly in an amount equal to a fraction of its length. These signals are used to control forward or aft movement of the mining machine over the ground surface, or extension or retraction of the variable length carrier arm, to remove ribs in the side walls after a cut has been taken from the mine face area, these ribs resulting from the shape of the cutter drum and its angularity with respect to the mine roadway side walls.

REFERENCES:
patent: 4023861 (1977-05-01), Schnell

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