Arrangement for the adjacent control of powered support assemblies in self-advancing support underground

摘要

An arrangement for adjacent control in self-advancing support, with multiple hydraulic hoses or hydraulic control hoses which extend from control units arranged in the one set of powered support assemblies in each case to supply units (17; 19) arranged in the other set of powered support assembly. Connecting lines are laid from the supply units (17; 19) inside the powered support assembly to the consumers (4; 8; 10; 11; 13; 14), which stand on skids (3) and comprise hydraulic props (4) carrying a roof bar (5), at least one advancing cylinder (14) pushing the skids (3), and further cylinders (10; 11; 13) arranged on the roof bar (5). The arrangement is characterised by two separate supply units (17 and 19 resp.) in the powered support assembly (1), of which one (17) is provided for the props (4) and the advancing cylinder (14) and is arranged in the area of the skids (3), and the other (19) is provided for the cylinders (10; 11; 13) arranged on the roof bar (5) and is arranged in the area of the roof bar (5). The invention takes into account the fact that the connections of the consumers are partly concentrated at the bottom and partly at the top in the powered support assembly. It splits up the hitherto central supply unit and places a separate supply unit at the bottom near the connections of the one set of consumers and a separate supply unit at the top near the connections of the other consumers and only requires correspondingly short connecting lines. <IMAGE>