Slicing assembly type residual mulch clearing drum

The invention discloses a slicing assembly type residual mulch clearing drum which is characterized in that a drum shaft is fixedly mounted on a support saddle; a drum is mounted on the drum shaft through a bearing; through holes are uniformly distributed in the drum wall; cam plates with annular grooves are fixedly mounted on the drum shaft; the cylindrical drum adopts such a structure that ribs are uniformly distributed on and fixedly connected to end plates at the two ends of the drum; the slicing assembled drum wall is connected to the ribs; mulch picking tooth beams parallel to the drum shaft are uniformly arranged around the periphery of the cam plates; swinging arms are hinged on the mulch picking tooth beams; rollers arranged at one end of the swinging arms are matched with the annular grooves of the cam plates; connecting rods are hinged on the mulch picking tooth beams; one end of each connecting rod is hinged on a rib hinged seat; mulch picking teeth protruding outwards are fixedly connected to the