TUNNELING MACHINE Russian patent published in 1996 - IPC

FIELD: mining, particular, tunneling machines with boom-line working member. SUBSTANCE: tunneling machine includes loading device with conveyer located in the center of tunneling machine frame, and boom-like working member with turning turret whose upper and lower higher supports are installed above and under the conveyer. Frame of tunneling machine is made in form of closed gantry in cross-section. Side vertical posts of gantry are rigidly connected between them by cross-beams located above and under the conveyer. Hinged support of turning turret are installed in middle parts of cross-beams. Hinged supports of turning turret are made with hollow axles in which tenons are installed to connect turret with frame of tunneling machine. Upper hinge support of turret is located in bracket rigidly connected with upper cross beam of gantry and brought out to the side of working member. EFFECT: higher efficiency. 3 cl, 4 dwg