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

FIELD: agriculture.

SUBSTANCE: invention relates to the agriculture. Soil roller is made of hollow smooth tube (1), along periphery of smooth surface and along its length in lengthwise direction through equal intervals there are openings (2) of rectangular shape. In holes (2) on inner side of hollow smooth tube (1) parallel to axis (6) of its rotation there are helical screws (3) installed, resting on hollow cylinder (4) installed coaxially inside hollow smooth tube (1) with rectangular shape holes (5) made along its entire length in longitudinal direction through equal intervals. Width of holes (2 and 5) in hollow smooth tube (1) 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 from the ends of hollow smooth tube (1). On outer surface of hollow smooth tube (1) between helical screws (3) there are perforated projections (8), length of which is equal to length of hollow smooth tube (1), and their cross section is a segment of circle. Height of perforated ledges (8) is equal to height of part of helical screws (3) protruding from hollow pipe (1). Part of hollow smooth tube (1) located under perforated protrusions (8) is also perforated. Ends of hollow cylinder (4) are in contact with inner surface of discs (7).

EFFECT: higher quality of soil rolling.

1 cl, 3 dwg