Patent ID: 6224163
Filing Date: 2001-05-01
Classification: E01C,E02F,E21C

Abstract:
A milling roller module for a surface miner, the milling roller module comprising:a milling roller operating with undershot and having a milling roller jacket;first and second drives for the milling roller;a downstream discharge belt;material guiding elements arranged between said milling roller and said downstream discharge belt;a fastening structure for fastening said milling roller to a front of a chassis of the surface miner at right angles to a direction of travel in its horizontal longitudinal axis, said fastening structure including a support frame, said horizontal longitudinal axis also being the axis of rotation of said milling roller, said milling roller being mounted and driven by said first and second drives on both sides in an area of end faces of said milling roller, said milling roller having milling tools and guide plates arranged on a circumferential surface of said milling roller, wherein material being loosened from the block being mined is carried in a direction of rotation and is transferred to said discharge belt, said discharge belt being narrower than a cutting width of said milling roller, wherein a conveying space of the loosened material in the area of said milling roller is an annular space between said milling roller jacket and a cutting circuit diameter (D.sub.S), a basic body of said milling roller being said milling roller jacket and completely accommodating said first and second drives each on one of sides of said milling roller, said first and second drives having power take-off shafts connected to said milling roller with a fixed drive housing connected to said support frame, and said first and second drives having bearings which are also the bearings of the said milling roller;a takeup chute surrounding a portion of said milling roller at a spaced location from a cutting circle diameter (D.sub.S) of said milling roller from a top edge of the level being cut in the direction of rotation of the roller in an angle of about 110.degree., said takeup chute limiting a conveying space for loosened material to an outside and being provided with a guide tunnel in an area of the intended transfer of the material to said discharge belt, said takeup chute being provided downstream of the block being mined in the direction of rotation of said milling roller to guide material and to transfer it to said downstream discharge belt in a specific manner, said takeup chute being connected to the surface miner with one upper joint and two longitudinally adjustable struts.