Technological effectiveness of tillage unit with working bodies of parquet type in technologies of cultivation of grain crops

The article presents the results of experimental studies of the technological operation of tillage in the technology of growing cereals. The authors proved that one of the solutions in soil-saving agriculture is the introduction of parquet-type working bodies for deep loosening. It is proved that the technological process of tillage by working bodies of the parquet type is performed by asymmetric racks and paws, made as separate, sequentially placed broken planes. The influence of the relative position of the working bodies was studied in two variants: frontal with pairwise counter asymmetry; chess arrangement of working bodies. As a result of the experimental research, it is established that in the first variant the energy intensity of the process with the increase of the unit speed by 5.5 km·h increased by 22%, in the second variant – by 14.5%. The authors found that in the second variant at the speed of the unit 8 km·h traction resistance is reduced by 3.5%, and at the speed of 10 km·h 1 the advantage increases to 5.8% compared to the first variant. The article notes that the factor of pinching the soil mass in the space between the paws and their intensive loosening in the frontal performance of the working bodies of the parquet type adds 5% of energy consumption. The authors proved that according to the indicators of slipping by rational modes of tillage in the technology of growing cereals in the unit with a tractor that develops a traction force of 30-40 kN tillage can be carried out at speeds up to 10 km·h. Under such conditions, the productivity of cultivation will be 3.1 ha·h.