Surface miner with tilting superstructure for depth control

Abstract

A continuously operating surface miner designed basically with a milling roller for the accurate, selective mining of sedimentary beds. The parameters cutting height, cutting width and feed speed are decisive for the performance capacity of surface miners. How the miner begins a block to be mined, how it finishes it and changes over to a new block to be mined is significant as well. The particular technology that can be used depends essentially on the mobility of the miner and the possibility of the engagement of the milling roller with the material to be mined. A three-caterpillar chassis for the miner and for arranging the milling roller (,) in front of the said chassis in the direction of mining is provided. The milling roller (,) is mounted on a transverse frame (,) and is fastened by same to the superstructure (,) of the miner. High mobility of the miner is achieved due to this arrangement of the milling roller and the use of the chassis. The miner always travels on a clean, freshly cut level, so that natural unevennesses or ditches dug to drain surface water do not interfere with the travel. Another advantage of this design is that the miner can move backward without problems, can strip corners with ease and can also open basin-shaped deposits with a circular feed movement.