Crop chopper for maize waste - has two super-imposed rotors with swinging flails on lower and fixed blades with hammers on upper

摘要

The crop chopper primarily is for the disposal of maize trash. Two rotors (2,4) are provided one above the other in a casing (6). Both rotate on horizontal axes the lower rotor (2) has swinging flails (8) to cut the standing stalks and the upper rotor (4) has pivoted hammers (20) working between fixed cutting blades (22) inside the casing. These chop the cut crop and any other debris which was lying on the ground and which will be thrown up by the flails of the first rotor. The fixed cutting blades (22) are sharpened on four edges (23) and so present four alternative cutting edges by reversal or turning over. The cutting blades are pivoted to the casing by strong bolts and fixed against rotation by shear bolts or pins.