Cowl assembly for longwall mining machine
AssigneeGerb. Eickhoff Machinenfabrik und Eisengiesserei m.b.H.
InventorRolf Krause
Life of this patent
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Abstract
A cowl assembly for the cutter drum of a longwall mining machine, the cowl being arranged for pivoting or slewing movement about the cutter drum axis and having at least one driving motor to pivot it, the driving motor output gear meshing with a toothed annulus on an elongated cylindrical support member disposed centrally of the cutter drum axis.
Claims7
A cowl assembly for the hollow cutter drum of a longwall mining machine mounted for rotation on a support element extending outwardly from a cutter drum support arm, said cowl assembly being pivotal about the axis of the cutter drum and comprising a cylindrical member positioned within the hollow cutter drum and extending along a substantial length of the cutter drum, bearing means for mounting the opposite ends of said cylindrical member on said support element, an arm extending radially outwardly from said cylindrical member, and a cowl carried on said arm.
A cowl assembly for the hollow cutter drum of a longwall mining machine mounted for rotation on a support element extending outwardly from a cutter drum support arm, said cowl assembly being pivotal about the axis of the cutter drum and comprising a cylindrical member positioned within the hollow cutter drum and extending along a substantial length of the cutter drum, an internally-toothed annulus on said cylindrical member positioned within the hollow cutter drum, a plurality of gears connected to drive motors circumferentially spaced around said toothed annulus for rotating the same, bearing means for mounting the opposite ends of said cylindrical member on said support element, an arm extending radially outward from said cylindrical member, and a cowl carried on said arm.
Dependencies are inferred from the claim text.