Screening bucket

A screening bucket, comprising a bucket body defining a loading compartment and an unloading opening, wherein the bucket body comprises two opposite side walls at least partially defining the unloading opening,

• wherein the screening bucket comprises at least one screening assembly which comprises:
• a screening shaft, extending between two opposite shaft ends, and rotatable about a rotation axis;
• and
• a plurality of screening tools connected to the screening shaft,
• wherein the screening bucket further comprises a transmission system positioned at at least one of the two opposite side walls and configured to transfer mechanical and/or hydraulic power to the at least one screening assembly,
• wherein the transmission system comprises a rotor positioned at a side wall of the two opposite side walls and extending to protrude into the loading compartment and facing one of the two opposite shaft ends,
• wherein the screening shaft forms, at the shaft end facing the rotor, a shaft coupling portion forming a shaft recess open at least in a direction transverse to an axis parallel to the rotation axis or radial to the rotation axis,
• wherein the shaft recess is blind in the direction transverse to the axis parallel to the rotation axis or radial to the rotation axis,
• wherein the rotor comprises a rotor end, removably inserted into the shaft recess, so as to obtain a geometric coupling with the shaft coupling portion,
• wherein the rotor end and the shaft recess are shaped so as to allow a torque transmission from the rotor to the screening shaft,
• wherein the screening bucket further comprises a clamp, positioned opposite to the shaft coupling portion with respect to the rotor end of the rotor along a direction transverse or radial to the rotation axis, and
• wherein the clamp is removably connected to the shaft coupling portion so as to constrain the rotor end of the rotor in the shaft recess.