Novel wave disc stubble breaking device

The utility model relates to a novel wave disc stubble breaking device and belongs to agricultural machinery. An eccentric shaft is inserted on an upper rotary sleeve and locked on the upper rotary sleeve through an upper set screw; a conical limiting block with a lower set screw is sleeved at the lower side part of the eccentric shaft and locked on the eccentric shaft through the lower set screw; a lower rotary sleeve with a conical through hole on the lateral wall is sleeved on the outer part of the conical limiting block; a conical part of the conical limiting block is positioned in the conical through hole of the lower rotary sleeve; fit clearances are formed between two conical lateral walls of the conical through hole and two conical lateral surfaces of the conical limiting block; and an elastic floating wave stubble breaking disc assembly is assembled on the rear side part of the lower rotary sleeve. The novel wave disc stubble breaking device has the advantages of simple and reasonable structure, good