FAILURES OF POLYMER PARTS OF AGRICULTURAL MACHINERY

Abstract

Since the last century, polymer materials have been widely used in industry. They are increasingly being used in the construction of agricultural machinery. Simultaneously with the spread of polymer parts, there is a need to develop technologies for repairing agricultural machinery containing such parts. (Research purpose) The research purpose is in analyzing the failures of polymer parts of agricultural machinery and equipment. (Materials and methods) The article presents a study of cases of failures of polymer parts of agricultural machinery based on data received from the enterprise LLC "Rassvet" of the Rostov region, the production cooperative "Koelginskoe" of the Chelyabinsk region for 2019 and summary information from various suppliers of spare parts of agricultural machinery. (Results and discussion) The parts of the industrial water treatment filter, turbine water meters and the sprayer housing failed at LLC "Rassvet" during the period under review. In the production cooperative "Koelginskoe" the gear of the servo drive of the grain flow and the oil seal of the hydraulic cylinder of the tractor K-744 failed, and therefore it was necessary to replace the entire unit. It is unprofitable for dealers of agricultural machinery to supply parts in a single copy due to their low cost. (Conclusions) The nomenclature of polymer parts of agricultural machines that fail is quite diverse, and cases of their failures are not rare. In some cases, the replacement of these parts is impossible due to their absence from sale, and in other cases, it turns out to be unprofitable due to long delivery times or a large minimum order batch. In this regard, agricultural producers suffer significant losses, overpaying for a whole node instead of replacing one part.