BLADE OF ROAD-BUILDING MACHINE Russian patent published in 2003 - IPC

FIELD: mining and construction engineering, particularly, blades of road-building machines applicable in cleaning of surfaces from impurities and breakage of solid and abrasive material, and also used as blades of bulldozers and snow removers. SUBSTANCE: blade includes body with units of its attachment to working member of machine and cutting tool connected with body. Cutting tool is in the form of rectangular plates with cutting edges located in the same plane. Said plates are spaced at the same intervals over entire length of body. Blade has inserts each located between adjacent plates. Plates are made of hard alloys materials. Body end face has longitudinal recess for location of plates and inserts. Each insert is connected with body. Insert length along recess longitudinal axis amounts to at least 0.15 and not more 0.65 of plate length along the same axis. EFFECT: increased blade service life, reduced power consumption in breakage process. 11 cl, 7 dwg