Longwall mining machine with pivotal body adjustment
AssigneeCoal Industry (Patents) Limited
InventorDennis Hartley
Life of this patent
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Abstract
A ranging drum mining machine has its cutting end gearbox pivotally mounted in trunnions for pivotal movement about an axis transverse to the axis of pivotal movement of the ranging arm.
Claims9
A mining machine which in use traverses back and forth along a face conveyor extending along a working face, said machine comprising a supporting underframe movably engaging the conveyor, a body assembly supported by the supporting underframe and at least a portion of which is pivotally mounted relatively to the supporting underframe for pivotal movement about an axis extending generally in the direction of machine traverse, at least one cutter carrying arm pivotally mounted on said portion of the body assembly for movement about a second axis transverse to the direction of machine traverse, first means for pivoting said portion of the body assembly relative to the underframe and second means for pivoting the cutter carrying arm relative to said portion.
A mining machine which in use traverses back and forth along a face conveyor extending along a working face, said machine comprising a supporting underframe movably engaging the conveyor, a body assembly supported by the supporting underframe and at least a portion of which is pivotally mountable relative to the supporting underframe for pivotal movement about a first axis extending generally in the direction of machine traverse, at least one cutter carrying arm pivotally mounted on said one portion of the body assembly for movement about a second axis transverse to the direction of machine traverse, first means for pivoting said one portion of the body assembly relative to the underframe, second means for pivoting the cutter carrying arm relative to said one portion, and inclination means to sense the inclination of said one portion.
Dependencies are inferred from the claim text.