SCREENING BUCKET (VERSIONS) Russian patent published in 2025 - IPC E02F3/40 

FIELD: soil-shifting.

SUBSTANCE: group of inventions relates to excavating working equipment and is intended for sieving thawed, frozen soils and other materials, as well as crushing solid inclusions. Hydraulic motors are installed on both sides of the bucket housing and are connected to rotors by means of a chain drive mechanism, which includes drive sprockets mounted on hydraulic motors, driven sprockets mounted on rotors, and drive chains connect drive and driven sprockets in series from hydraulic motor to first rotor and further from rotor to rotor. Angle of inclination of the body bottom relative to the circle radius drawn from the point of attachment of the bucket to the cutting edge of bottom is 55°<α<65°, and length of bottom is limited by points of its intersection with line of this circle. Rear wall of the housing is made at angle of 90°<β<120° relative to the bottom. According to the second version, the rotor drive mechanism is equipped with a friction clutch fixed on the rotor shaft by a lock washer and a nut coupled with a spacer sleeve fixing the bearing installed on the shaft.

EFFECT: reduced time of the working cycle, increased operational efficiency and reliability of the structure.

2 cl, 7 dwg