CUTTING DRUM FOR DRILLING MACHINE Russian patent published in 2021 - IPC E21C25/10 E21C27/24 E21C27/12 E21C25/52 

FIELD: mining.

SUBSTANCE: group of inventions relates to drilling machines with a cutting drum. Cutting drum for drilling machine, having longitudinal axis extending across or perpendicular to axes of rotation of most front primary cutting rotors of drilling machine. Cutting drum comprises main body centred on said lengthwise axis and having outwardly facing drum surface, cutting teeth holders projecting outward from said drum surface and intended for installation of appropriate cutting teeth on main body, blade for material transfer. Each blade has corresponding outward facing surface elevated in radial direction from drum surface. Each blade extends substantially along the drum between the tooth holders, and the blades are located side by side in circumferential direction around the drum, covering the surface of the drum.

EFFECT: technical result is reduction of secondary crushing of material and maximum increase in collection and movement of tail of cut material from shaft surface, reduced power consumption of engine and higher efficiency.

16 cl, 5 dwg