Three-shaft stubble cleaning rotary tillage mixed burying soil preparation machine

The utility model discloses a three-shaft stubble cleaning rotary tillage mixed burying soil preparation machine and belongs to agricultural machinery. A plate-type straight cutter rhizome crushing cutter shaft, a straw mixing and burying cutter shaft and a plate-type straight cutter soil crushing and stubble pressing cutter shaft are sequentially and rotatably mounted at the front side part of the lower end of the rack assembly and in front of the subsoiler assembly from front to back; a cover plate is installed on the front side portion of the upper end of the machine frame assembly and located above the plate-type straight cutter rhizome smashing cutter shaft, the straw mixing and burying cutter shaft and the plate-type straight cutter soil smashing and stubble pressing cutter shaft in a covering mode, a branch transmission box is fixedly installed at the upper end of the machine frame assembly, and the branch transmission box is connected with a main transmission box through a power transmission shaft. Th