Rational traction-energy indicators of 4K4 wheel tractor at implementation of resource-saving operations tillage

The article considers the problem of increasing the efficiency of modern energy-saturated wheel tractors using in the main tillage operations. The purpose of the article is to justify the rational traction and coupling indicators of the wheel 4К4 tractor while performing various tillage operations taking into account the probabilistic nature of the outer load. The research subject is the wheel 4K4b tractor “Kirovets” K-424 and its traction performance. As a result of the carried out studies, it was found that the value of traction-energy indicators of the tractor with complete set of 1К (single wheels) when the tractor is subjected to fluctuations of a traction force on the hook on this gear in the range = 0-0.2 does not differ significantly at the same value of m e . Optimal load modes at load variation factor = 0.05-0.2 correspond to the tractor traction mode λ P * = 0.85-0.97, and, depending on the gear number, they shift towards the nominal value of traction force on the hook P te...