Drum coal cutting machine having a roller crusher
AssigneeGebr. Eickhoff, Maschinenfabrik und Eisengiesserei m.b.H.
InventorsFriedhelm Henrich, Willy Lanfermann
Life of this patent
Estimating the term…
Abstract
A roller crusher is carried by a coal cutting mining machine which is, in turn, carried by a gantry for movement along the frame of a longwall face conveyor. The roller crusher is attached to the coal cutting machine by a U-shaped frame having hinge pins for pivotal movement thereof about a horizontal axis at the end of the machine which faces toward the oncoming stream of coal on the conveyor. The U-shaped frame supports a drive motor that is, in turn, coupled by a gear drive to the roller crusher. A piston and cylinder assembly is controlled to adjustably position the U-shaped frame and thereby the roller. The mining machine has support arms that are pivotal about horizontal axes and carry coal cutting drums to project into the working face of the mine.
Claims12
The combination of a conveyor having a support frame adapted to rest upon the footwall of a coal mine and extending in a direction parallel to the working face thereof, and a coal mining apparatus comprising:
- a gantry adapted to travel along on said frame and pass above said conveyor, said gantry having a portal opening for the passage of coal therethrough while transported by said conveyor,
- a coal cutting machine carried by said gantry,
- a support arm pivotally attached to said machine for movement about a horizontal axis,
- a cutter head mounted on said support arm for projecting into the working face of the mine,
- means supported by said coal cutting machine and coupled to said support arm to pivotally displace the support arm about said horizontal axis and thereby selectively position said cutting head into a desired projecting relation toward the working face of the mine.
- a roller crusher carried by said coal cutting machine independently of said cutter head at the end of said gantry which faces toward and in a generally overlying relation to the oncoming stream of coal carried by said conveyor, said roller crusher being arranged to break down large lumps of coal on said conveyor before passing into the portal opening in said gantry,
- a support member rotatably mounting said roller crusher at one end thereof while supported at the other end by said gantry for pivotal movement about a horizontal axis, and
- a drive motor carried by said support member to rotate only said roller crusher.
Dependencies are inferred from the claim text.