Ensuring possibility of functioning of tractors in agricultural production taking into account residual resources of their units and systems

Abstract

Annotation. Development of agriculture in the conditions of market relations is accompanied by aggravation of the problem of efficiency of use of machinery. In this connection, the task of scientists is to increase the actual volume of work performed by tractor units, reducing the cost per unit of production. The high cost of tractors, lack of personnel, reduction of technical equipment of farms and the increase in the volume of products produced in the agro-industrial complex, natural and climatic conditions impose special requirements on technical service to maintain tractors in working conditions. The working state of tractors is the state at which values of parameters, which characterize the ability to execute the given functions, correspond to the normativereference and design documents. During operation of tractors in agriculture under the influence of various factors their parts and units wear. The indicator determining the value of wear is the residual resource of aggregates and units. In the article, the questions of influence of residual resources of basic aggregates and systems of tractors on frequency of failures of various groups of complexity are considered. Experimental research on determination of dependencies of residual resources of tractor units and frequency of failures of different groups of complexity, on the basis of which the rules of replacement of the unit whose resource is exhausted, is carried out, i.e. is replaced with a full of the resource (new) or on the aggregate after overhaul.

Mathematical model of individual lubrication system for bearing assembly of internal combustion engine turbocharger

“…As a result of the research, it was found that the number of failures increases with increasing wear and tear of equipment, which will eventually lead to an increase in the recovery period [2]. In this regard, research aimed at ensuring the performance of systems and units, as well as tractors and agricultural machines in general, is relevant.…”

Results of experimental research of conical rotary loosener in soil canal

“…The nature of the processes occurring in the soil under the influence of the working body depends on its geometric parameters, operating modes and physical and mechanical properties of the soil. The shape of the working body mainly determines the quality of tillage and its energy consumption [1][2][3][4][5][6]. Academician V.P.…”

Influence of Fertigation on Soil Salination

“…Еще один важный фактор, связанный с плодородием почвы, -устойчивость почвенных агрегатов (WSA), которая определяет способность сопротивления почвы разрушающему воздействию осадков, стокаповерхностных вод и ветра. Помимо внешних факторов, на величину этого показателя влияют многие внутренние свойства почвы, например, содержание органических веществ, гранулометрический состав, пористость и др., а также эффективность управления землепользованием [7].…”