Analysis of the factors affecting the disc harrow operation efficiency
Disc harrows with in-line arrangement of spherical discs on an individual axle are widely used in resource-saving technologies for soil preparation for sowing grain after row crops. The working bodies of the disc harrows are not clogged with plant residues and soil. An important indicator of the disc harrow is the efficiency. The purpose of the study is to determine the factors influencing the efficiency of the disc harrow with the disc installation on an individual axis. It has been found that the traction resistance of the disc harrow depends on the design and technological parameters of the spherical disc and the speed of the unit. The operating weight of the disc harrow is set depending on the number of discs and the required load to maintain the required working depth. It is proved that the efficiency of the disc harrow does not depend on the design and technological parameters of the installation of the spherical disc on the frame. The influence of the specific traction resistance of the soil, the load on the disc, the depth of processing on the efficiency of the disc harrow has been established. The increase in the efficiency of the disc harrow is achieved by increasing the useful costs for the operation of the spherical disc and reducing the load on the disc.