Abstract: A rotary tillage, sowing, ditching and pressing compound operation machine includes a fertilization and sowing device, an intermediate rotary tillage and ditching device, a frame, a liftable ditcher, and a multi-stage press wheel device. The multi-stage press wheel device includes a front press wheel and a rear press wheel. The front press wheel includes a front press roller shaft, front press rollers, and connecting rods. The rear press wheel includes a connecting plate, a rear press roller shaft, and a rear press roller. A first end of the connecting plate is connected to the rear press roller shaft by a support, and the connecting plate is connected to the frame in a manner of a sliding pair. The rear press roller is mounted on the rear press roller shaft in a manner of a revolving pair, and the rear press roller is located behind the liftable ditcher.

Abstract: Provided is a rotary tillage, sowing, ditching and pressing compound operation machine, including a fertilization and sowing device (2), an intermediate rotary tillage and ditching device (4), a frame (1), a liftable ditcher (3), and a multi-stage press wheel device (5). The multi-stage press wheel device (5) includes a front press wheel (51) and a rear press wheel (52). The front press wheel (51) includes a front press roller shaft (511), front press rollers (512), and connecting rods (514). The rear press wheel (52) includes a connecting plate (521), a rear press roller shaft (523), and a rear press roller (524). A first end of the connecting plate (521) is connected to the rear press roller shaft (523) by a support, and the connecting plate (521) is connected to the frame (1) in a manner of a sliding pair. The rear press roller (524) is mounted on the rear press roller shaft (523) in a manner of a revolving pair, and the rear press roller (524) is located behind the liftable ditcher (3).