Cutting mechanism having cutter disc assembly and fan blade for mower

A cutting mechanism, comprising:

• a cutter disc;
• a shroud, detachably connected to the cutter disc and enclosing the cutter disc to form an internal cavity, at least one of the cutter disc or the shroud forming a suction inlet communicating with the internal cavity, and the suction inlet being arranged at a circumferential edge of the shroud;
• a power component, mounted on the cutter disc and provided with an output shaft extending into the internal cavity;
• a cutting knife, housed within the internal cavity and connected to the output shaft for rotation under a drive of the output shaft;
• and
• a fan blade, housed within the internal cavity and detachably connected to the cutting knife or the output shaft, the fan blade being configured to rotate under the drive of the output shaft to form a driving airflow from the suction inlet towards the internal cavity,
• wherein:
• a rotation axis of the power component passes through a center portion of the cutting knife and a center portion of the fan blade to arrange the center portion of the cutting knife closer to the power component than the center portion of the fan blade;
• and
• the cutting knife and the fan blade are circumferentially staggered with respect to each other about the rotation axis of the power component.