SWDE120A DOWN-THE-HOLE DRILLING RIG OPERATOR’S MANUAL BOOK
10. STRUCTURE AND WORKING THEORY
The machine is impacting rotating type hole drilling rig. Main components are feed
system, rotating assembly, drill boom, drill frame, compensation cylinder, slide frame, lifting
cylinder, rod carousel, rod UNLOADER, dust hood, dust collection device, travel frame,
machine frame, air compressor & air Press system, diesel pump group, hydraulic system & main
control valve group, cab, operating platform etc. (See picture 1 ).
FIG.1 SWDE200B
10.1 DRILLING FRAME
Drilling frame is one of the main components and can guide the sliding of rotating assembly,
drilling and lifting of drilling tool. It is box truss structure welded by U-steel and with seat
fixed at its toe to support the rod and drilling tool. Connected with compensation cylinder and
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