COAL PLOW Russian patent published in 1994 - IPC

FIELD: coal plows. SUBSTANCE: coal plow has frames and cutter heads. Frames are articulated to each other. Each cutter head includes body, spacers with cutters and device to prevent displacement of spacers relative to one another and to body by means of three-sides T-shaped recess joint. Each device for prevention of displacement is made in form of adjusting screw and connecting pins. Body of each cutter head and respective spacers have axial vertical channels. Connecting pins are installed in vertical channel for motion. Adjusting screw is mounted in vertical channel of respectively body for interaction with end face of respective lower connecting pin. EFFECT: higher efficiency. 2 cl, 2 dwg