WORKING TOOL OF MINING MACHINE Russian patent published in 2007 - IPC E21C27/02 

FIELD: mining industry, possible use in mining machines with cutting working tools (worms, crowns, drums), in particular in drilling combines and complexes for driving mines of rectangular cross-section.

SUBSTANCE: working tool contains frame, on which motor is held with cutting tool. Motor is made in form of two independent reducers with engines. Cutting tool is made in form of four separate drums. On output shaft of each reducer two drums are mounted. Each reducer is held on frame with possible transverse movement relatively to the latter.

EFFECT: high productiveness during work with hard rock, expanded area of possible use depending on width of mine being driven, possible destruction of rectangular face using simple plan, not requiring high combiner skills.

2 cl, 7 dwg