SINKING MACHINE Russian patent published in 2012 - IPC E21D9/10 

FIELD: mining.

SUBSTANCE: The invention relates to mining, in particular, to sinking machine for excavation. The sinking machine comprises a hull, a working element, running gear, and a chain-linked conveyor. The hull is assembled from two parts with a ball joint hydraulic connection and jack-supported by blocks o tank and vehicle wheels. Each block has its own hydraulic drive. The working element comprises four rotors, two on large carrier and two on small carrier. The rotors rotate in different directions and are fitted with blades or roller bits. The rotor of one carrier rotate in one direction while the rotor of the second carrier rotation in the opposite direction, their rotation axis is inclined in different directions to ensure twisting in, like a corkscrew, into the working face during continuous feeding controlled by synchrodrives. The sinking machine can be fitted with manipulators with perforation drills. The form the arch shape of the bottomhole the large carrier rotors can move back and forth along the carrier sleeves using hydrocylinders controlled by tracers and verge millers.

EFFECT: increased productivity and excavation speed.

2 dwg