EFFICIENCY OF USING CARRYING WHEELS IN DRAGLINE EXCAVATOR
Mathematical models of traction support in dragline shovels of various design have been shown. The possibility to enhance shovel filling on account of reduction of shovel bottom end's friction against the soil has been proved. Technical proposals of draglines' shovels with balancer wheels, whose characteristic feature is replacement of friction-sliding motion of bottom end against the soil by friction-rolling motion have been introduced