EXCAVATOR BUCKET Russian patent published in 2020 - IPC E02F3/40 

FIELD: machine building.

SUBSTANCE: invention relates to excavating machines, particularly, to single bucket excavators. Excavator bucket includes side walls made in the form of round bowls with possibility of free rotation and cross-shaped frame, lower part of which ends with cutting edge arranged in front of bowls. Bowls in horizontal plane are installed at gripping angles α to axis of symmetry of bucket with formation of dihedral angle 2α between planes of rotation of their cutting edges, projections of which in frontal plane represent two ellipses, large semi-axes of which are parallel to axis of symmetry of bucket. At that, cutting edge of cross-shaped frame is arranged rectilinear with teeth, and its width B₀ is equal to distance between larger semi-axes of ellipses.

EFFECT: enlarging technological capabilities of bucket for high-quality development of dense soils, wet clay soils without sticking of bucket with soil, as well as simplification of design.

3 cl, 3 dwg