Extraction device for the underground mining operations, in particular for the coal recovery operated in longwall face

摘要

Extraction device for the underground mining operations, in particular for the degradation of player delicately strength deposits, such as coal seams in the tunnel, with a arranged in front of the face, in an excavation direction feedback via chain wheels for a guide frame, which can be deflected and driven endless plough chain, with the distributed over its length and under the bank of the surface of a bank start gain end plough body are coupled, which are arranged at a distance one above the other, parallel to the face running guides for the guide frame, which carry at their ends in the area of the chain wheels are connected via deflecting guide rolls 8, characterized in that the face (2) together, over the entire thickness degrading plough body (26) which are arranged one above the other plane in each case with bits (29) and fitted by means of hook-like throwing power of the guides in the form of the guide rails (11,17) at these are positively, wherein the plough body (26) at their guide hooks (30) behind the guide rails on the plough chain (14) are connected, and in the operation of revolving motion along the guide rails (11, 17) and the side of the end of the deflecting guide rolls 8 (23) performing.