CUTTING HEAD ADAPTABLE TO VARYING CUTTING CONDITIONS FOR LONGWALL MECHANICAL COAL MINERS

摘要

1. The winning element of a mining combine for variable mining conditions, which has a cylindrical shape made up of a hub with at least three coiled loading plates and a concave head shield, with mining cutters set on the edges of the loading plates and the edge of the head shield, the mining cutters on one plate being tangential cutters, and on the other plates being radial cutters, which also has cutter on the head shield, consisting in that the loading plate (3) fitted on the edge with tangential cutters (7, 8, 9) set in holders (5) with bumpers (14) has in cross-section a structure of a box formed by the slanting plate (3') extending from the hub (4) of the element to the four fourths of the loading plate (3), and on the concave planes (17) of the head shield (18) has mining cutters (21).IMAGE