The invention discloses a heavy stubble cleaning
harrow. The heavy stubble cleaning
harrow is characterized by comprising a main
harrow frame
assembly, a middle harrow frame
assembly, a left folding harrow frame
assembly and a right folding harrow frame assembly, wherein the left folding harrow frame assembly and the right folding harrow frame assembly are connected to the left side and the rightside of the main harrow frame assembly in a foldable mode; the middle harrow frame assembly is fixedly connected to the lower portion of the main harrow frame assembly; the front end of the main harrow frame assembly is movably connected with a
traction frame assembly; the rear end of the main harrow frame assembly is movably connected with a rear adjusting
tail frame assembly; walking wheels areconnected to the rear portion of the rear adjusting
tail frame assembly; the front end of the left folding harrow frame assembly is connected with a left pressing roller assembly; and the front end ofthe right folding harrow frame assembly is connected with a right pressing roller assembly. According to the heavy stubble cleaning harrow, high-stubble
straw is pressed down, the
straw is crushed and mixed through the front row of harrow pieces and the rear row of harrow pieces, and
straw rhizomes are subjected to secondary
cutting through disc slices, so that the straw can be fully crushed, repeated operation of the stubble cleaning harrow on an operated residual stubble field is not needed, and the operation efficiency is improved.