SUBSTANTIATION OF PARAMETERS OF THE WORKING ELEMENT FOR SOIL SLOTTING
The specific features of operation of the working elements of soil slotting farm aggregates are considered in the article. An important factor influencing the operation of the soil slotting machine is the angle of the knife-slitter. The angle must provide proper agro-technical operation quality and the least resistance to movement and minimal force for the surface layer shift in the vertical plane. The peculiarity of the above soil slotting organs operation is that, depending on their parameters and the soil condition, the process of soil treatment can be represented as both the separation of soil shavings and the crushing-indentation of soil into the slit walls. As a result of the study conducted, it was found that the most rational shape of the slitter is the stand with the chisel angle of 23-27°. The width of the chisel depends on the requirements of the technological process, though the minimum value is limited by the stand thickness. Usually, the thickness of the rack, from the viewpoint of firmness, is to be about 3 cm. The optimal setting angle for the knife-slitter is βkn=60-80°. With the soil treatment depth of 25 cm, the chisel width should be at least 4.0 cm, and with the depth of 30 cm the width of the chisel should be at least 4.5 cm and it should be set at the angle of α=21°.