DEVELOPMENT OF A MOBILE WORKSHOP IN THE SYSTEM OF TECHNICAL SERVICE OF AGRICULTURAL MACHINERY

Abstract

The technical service system currently operating in agriculture is the queuing system, but according to the requirements (tractor, agricultural machine) and the service apparatus (live operator, mobile and stationary workshops, repair plants), the diversity of the technological environment (soil for plow, grain for combine harvester, cargo for tractor trailer) and soil and climatic conditions (loamy or sandy, hard or loose soil, heat or precipitation) are very different from it. (Research purpose) The research purpose is developing statistical definitions to the parameters of the technical service system in agriculture, an algorithm for meeting the requirements in this system and probabilistic and mathematical models of a mobile workshop with the analysis of special cases. (Materials and methods) For the research, the results of timing of operational and technological indicators of combine harvesters, methods of probability theory and queuing were used. (Results and discussion) The article proposes specific definitions of elements (parameters) of the technical service system in agriculture. For the first time, a mass technical service system was presented as the sum of sequentially performed operations to meet the requirements. Authors examined the conditions of employment and mobility of the workshop, the appearance and absence of queues of faulty machines. The article presents the equations for calculating the intensity of orders received by the service center per unit of time, the average intensity of maintenance of one malfunction of one machine in a mobile workshop, the load factor of the workshop in the process of servicing faulty machines. The load factor serves as one of the main indicators of the service system and characterizes the completeness and speed of services. (Conclusions) When opening an additional point of branded technical service with a service radius of 40 kilometers, the speed of services increases at about 3 times, the loading of the mobile workshop does not exceed 50 percent, which eliminates the queue.