FIELD: mining.;SUBSTANCE: invention relates to mining and construction equipment. Excavator bucket of active action includes a housing and a power actuator in the form of percussion mechanisms with pushers, working teeth and arresters of their travel, as well as with return elements. Power actuator of the bucket of active action is made in the form of eccentric shaft in bearings of the housing of the bucket, with n eccentric elements on the shaft, displaced along and turned around the axis of this shaft relative to each other with a pitch of 360/n degrees along its circumference. Pushers of active teeth are made fork-shaped on one side in contact with cams. Their longitudinal axes are perpendicular to the cam turning axis. On the other side pushers have spherical ends in contact with the active teeth directly interacting with mine rock. Drive motors are installed inside the shaft ends, the motors are mechanically connected to the shaft to transfer torque and connected to frequency-controlled control system.;EFFECT: technical result is increase of power consumption and high efficiency of the bucket of active action.;1 cl, 1 dwg
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