Modular seed drill system mounted to three-point harrows

摘要

The modular system includes a drawframe (4) complete with wheels (3) and drawbar (5), and the seed drill (1) is mounted on the rear of the frame by means of couplings (15,16). The non-motor powered ground implements (19) and the ground roller (21) fitted to the frame lie ahead of the seed drill, with the wheels arranged between the seeding coulters (13) and the implements. The wheels can be adjustably (23) raised relative the frame by an hydraulic cylinder (24) and both the implements and roller can also be raised and lowered relative the frame by lifting devices (20,29). The wheels are mounted below the seed hopper and the drawbar is joined by coupling (25) to the bottom rod (26) of a tractor (28) three-point linkage (27). The wheel adjuster (22) cylinders are connected to the three-point linkage power cylinder and the roller (18) lies to the rear of the frame wheels.