Application of a structural-topological model in the optimization of the working elements of a combine harvester

Abstract

A structural-topological model is developed, which is presented in the form of connected graphs of the technological flows of grain and spike. Taking into account this model, the use of the main and additional formal features when searching for a non-optimal working element of a combine harvester is justified. For the reaping part, the search for a non-optimal working element is performed on the main formal basis, which characterizes the implementation of the main component of the principle of harmony of the structure. Due to the presence of common arcs of controlled and uncontrolled flows along simple chains, cuts in which two or more working elements, as well as the presence of circulating flows in the threshing machine of the combine, it is necessary to exclude the influence of circulating flows on the process when searching for a non-optimal working element. The search for a non-optimal working element of the thresher is performed on the basis of an additional formal feature, which is characterized by a decrease in the amount of flow along the controlled flow or an increase in the flow through the uncontrolled flow from the circulation flow.

Comprehensive evaluation of modern combine harvester performance in Southern Russia

“…Пропускная способность комбайнов с аксиальнороторной молотилкой [8] Удельный расход топлива на 1 га убираемой площади самый большой отмечен у комбайна РСМ-101 «Вектор 410» -14,65 кг/га, наименьший у комбайна «Дон-1500Б» -9,3 кг/га, у остальных варьировался от 9,7 до 13,7 кг/га. Наименьшие потери зерна (общие) были у Laverda М 306 -0,74% к убранному зерну, наибольшие -2,93 % у John Deere S 690 и 2,95% у Massey Ferguson 9700.…”