Weeding subassembly of drill

The utility model provides a weeding subassembly of drill has two longerons in the both sides of frame respectively along the drill direction of advance, the weeding subassembly includes a pivot, the pivot is rotated and is fixed on two longerons, at the fixed land wheel in the both ends of pivot, when the drill god forward, the land wheel drove the pivot and rotates, be fixed with in the pivot and grab the grass wheel, the pivot drives grabs the grass wheel and uses the pivot as the rotation of axes, crossbeam in the frame is in the top of pivot, be fixed with two shear plates on the crossbeam, two shear plates be in respectively the both sides of grabbing the grass wheel and respectively with grab the parallel and contact of grass wheel, and two shear plates with grab the grass wheel in horizontal direction top overlapping. Compared with the prior art, the power that advances that utilizes the drill drives the land wheel rotation, and land wheel drive pivot is rotated, and the pivot drive is grabbed the gra