TILLAGE ROLLER Russian patent published in 2021 - IPC A01B29/04 

FIELD: agriculture; machine building.

SUBSTANCE: invention relates to the field of agricultural machine building. Soil roller is made of hollow smooth tube. On the periphery of the smooth surface of the pipe in rectangular shape holes (2) are made in longitudinal direction in equal intervals. Holes (2) are made along the whole length of hollow tube. Holes are arranged with spiral screws (3) on the inner side of the hollow tube parallel to its axis of rotation. Spiral screws (3) rest on hollow cylinder (4) installed coaxially inside the hollow tube and having rectangular holes (5) made along its entire length in longitudinal direction through equal intervals. Width of holes in hollow smooth tube and in hollow cylinder (4) is less than diameter of helical screws (3). Pitch of turns of spiral screw (3) is less than or equal to agrotechnical given maximum size of soil lumps. Disks (7) are installed at hollow smooth tube ends. On external surface of hollow tube between helical screws (3) there are hollow perforated ledges (8). Length of the projections is equal to the length of the hollow smooth pipe, and their cross section is a segment of the circle. Height of hollow perforated ledges (8) is equal to height of part of spiral screws (3) projecting from hollow smooth tube. Part of hollow smooth tube arranged under hollow perforated protrusions (8) is also perforated. Ends of hollow cylinder (4) are in contact with inner surface of discs (7). Diameter of holes in hollow perforated projections (8) is less than or equal to agrotechnical given maximum size of soil lumps, and diameter of holes in hollow perforated ledges (8) of hollow smooth pipe part exceeds diameter of holes in hollow perforated projections (8).

EFFECT: higher quality of soil rolling.

1 cl, 3 dwg