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) in parallel to axis of its rotation there are spiral screws (3), 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 external surface of hollow smooth tube (1) between helical screws (3) protrusions (8) are made, the cross section of which is a segment of circle. Height of ledges (8) is equal to height of a part of spiral screws (3) projecting from hollow pipe (1). Ends of hollow cylinder (4) are in contact with inner surface of discs (7).

EFFECT: higher quality of soil rolling.

1 cl, 3 dwg