Kinematic analysis of the milling working part of an implement for tending tree rows in plantations

When growing plantings, an important factor in their successful growth and development is additional tillage, which consists in loosening and removing weedage. In forestry, this technological operation is performed mainly in the spacing of plantations by inter-row cultivators or by saddling a row with leaving a protective zone with special forest tools. Directly in the row, the forest crops are clarified manually with the help of motorcycle cutters and trimmers, which is not productive. By analogy with garden tools, the authors have designed a machine for cultivating the soil in rows of tree plantation, equipped with a milling working part. The purpose of the work is to compile a mathematical model of the movement of a vertically rotating milling cutter with an arcuate withdrawal from a row during tillage with a perennial plantings tool to evaluate the kinematic parameters of the work process. The developed model takes into account that the gun moves progressively, and the crank on which the milling cutter is mounted works like a curtain rod, that is, it moves in a half-arc. The determination of the position of the treated plants is linked to the working part, as when moving out of the row, the milling cutter should not touch the stipes. As an example of using the model, the result of modeling fragments of a work area for two different plant spacing is shown – 1 m and 2 m. The presented mathematical formulation of the kinematics of a tillage tool with a milling working part work process of can be used for further theoretical and experimental studies of the operation of this type of equipment and reduces the development time of serial technical samples.

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