Ditching device of grassland no-tillage reseeding machine

The ditching device of the grassland no-tillage reseeding machine comprises a mounting plate, a fixing frame, an assembling rod and a protective shell, first external threads are formed in the outer surfaces of the two ends of a rotating rod, an internal thread connecting opening is formed in one end of the assembling rod, and second external threads are formed in the outer surface of the other end of the assembling rod; the rotating rod is in threaded connection with the assembly rod through the first external thread and the internal thread connector, and a ditching cutter plate is fixedly connected to the outer surface of the middle of the assembly rod. According to the ditching device of the grassland no-tillage reseeding machine, through the arrangement of the rotating rod, the first external thread, the internal thread connector, the assembly rods, the ditching cutter plate and other elements, a second external thread on one assembly rod is screwed into the internal thread connector of the other assembly