WORKING MEMBER OF EARTH-MOVING MACHINE Russian patent published in 2003 - IPC

FIELD: mechanical engineering; earth-moving machinery. SUBSTANCE: working member of earth-moving machine contains drive shaft with fitted-on working member in form of cutter with screw conical spiral secured by one end rigidly on drive shaft with possibility of compression along drive shaft. Screw conical spiral is made in conical section in form of scale triangle whose corner is cutting edge and is connected with shaft at least by two cross-members of the same section per spiral coil. Said crossmembers are crescent shape and are rigidly connected with spiral and bushings freely fitted of square-section drive shaft. EFFECT: increased capacity of earth-moving machine. 2 dwg