Theoretical study on power performance of agricultural gantry systems

In terms of the future development of the mechanization and automation of the agricultural production, the transition from the narrow-gauge towing tractor to the wide-span (gantry) traction and power unit, also called the agricultural gantry system, seems to be a promising trend. For the purpose of combining implements with the agricultural gantry system with the use of a manifold power take-off system, it is necessary to undertake theoretical research into such power units with regard to their suitability for their functional purpose. The aim of the investigations was to analyze the laws governing the effect that the parameters and operation conditions of agricultural gantry systems have on their power balances and at the same time to outline the principal trends for the development of the theory of such machines with that aim in view. As a result of the investigations, it has been established that the power intensity rate of such agricultural gantry systems travelling at working speeds within a range of 10 km·h-1 is equal to 23.5 kW·t-1. Also, the agricultural gantry system is capable of producing a traction force of 6.37 kN·t-1 of its operating mass provided that a sufficient grip of its undercarriage on the surface of the permanent process track is ensure