THE INTERACTION OF HARVESTING AND TRANSPORT MACHINERY WHEN USING THE HEAVY-DUTY TRAILER-LOADER

The ways of improving performance of the harvesting-transportation system for harvesting grain crops by applying means for positioning and monitoring vehicles in the fi eld were identifi ed. The studies were conducted in agricultural enterprises of the forest-steppe zone of Novosibirsk region from 2007 to 2017 during eleven harvesting periods. The grain yields amounted to 4.2 tonnes per ha, the distance of transportation was up to 25 km. Taking into account the peculiarities of the harvesting-transportation system due to remoteness of the fi elds, the time for moving from one harvester to the next, unloading a harvester and a heavy-duty trailer-loader, an expression was obtained to determine the time cycle of the trailer reload scheme for handling the transport service with the use of positioning and monitoring means. It was established that when performing harvesting and transporting in the reloading scheme with the application of positioning systems and monitoring technical means and the use of heavy-duty trailer-loader for transporting distances of over 12 km and yields of over 2 tonnes per ha, the idle time of harvesters and vehicles decreased. The need in vehicles was also reduced; effi ciency of high-performance combine harvesters increased by 10-25%; the coeffi cient of threading e = 0.92; performance of harvesting-transportation system as a whole increased by 9-18 %.