WAYS TO IMPROVE THE RELIABILITY OF GRAIN HARVESTING MACHINES TO ENSURE THE COUNTRY'S FOOD INDEPENDENCE

The issues of reliability of harvesting machines are considered, which largely depends on the technological process of their development and operation. The design features of domestic and foreign grain harvesting units, their susceptibility to technical failures, as well as the influencий e of operational factors on the wear of the main mechanisms are studied. The main types of failures are analyzed, including mechanical wear, abrasive damage, failures due to fatigue of materials, malfunctions of electronic and hydraulic systems. The need to increase the durability and reliability of units by using wear-resistant materials, protective coatings and improving structural solutions is substantiated. An approach to a comprehensive assessment of the reliability of the “machine - maintenance” system is proposed to minimize downtime and increase the efficiency of harvesting.