期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2019
卷号：315
期号：3
页码：1-9
DOI：10.1088/1755-1315/315/3/032008
出版社：IOP Publishing
摘要：The aim of the work is a comparative assessment of the technological level of high-power wheeled tractors in the natural-industrial conditions of the Eastern agrozone of the Siberian Federal District. As the main criterion for adaptation to natural production conditions, when forming models and algorithms for assessing the technological level of Russian-made production tractors of different configuration, we used a generalized net performance indicator corresponding to the minimum reduced costs for different classes of rut and groups of tillage operations with specific characteristics of specific traction resistance of working machines and the nominal values of technological speed. According to the simulation results, rational traction modes were defined, limited by 7-15% skidding of propulsions and the corresponding change ranges and axle distribution of wheeled 4K4b tractors of different configurations. For the prevailing class of rut length more than 1000 m, the required tractor power, taking into account the employment in operations of different groups, was 260 kW on single wheels and 250 kW doubled with an operating weight of 14.64-17.60 t and 15.70-18.38 t respectively. With an average for the agrozone, the rut length class of 600–1000 m, the optimum values of the mass-energy parameters of the tractor are at the level of 0.80–0.81 from those indicated. According to the criterion of the technological level in the natural production conditions of agrozones with a rut length of more than 1000 m, the Kirovets tractors of models K-740P, K-742C and K-742P with an operating capacity of 284-298 kW on single wheels and tractor RSM-2375 (240 kW) on dual are mostly efficient (Kэ ≥ 0, 950). Doubling the tractor wheels increases productivity by 5-6% and fuel efficiency of the aggregates up to 14% with a two-fold decrease in pressure on the soil.
