Theoretical Substantiation
Achievement of permanent growth of agricultural production, the population can be provided with food and agricultural raw materials due to the improvement of technical level, quality and durability of agricultural machinery and the widespread introduction of scientific and technological achievements aimed at increasing the efficiency of its use (Denisov, 2005;Nekhoroshev, 2014; Hansson, 2002).The improvement of mobile agricultural machinery, its efficiency, technological efficiency and reliability, the traction-dynamic and economic characteristics of machine-tractor units (MTAs) in their set-making and operation in production are of great importance in the solution of these problems (Iofinov & Mikuberg, 1971; Zoz &Grisso, 2003).
The most technological operations result in overexpenditure of fuel, energy and money costs per unit of received products and processed area. This occurs because of the inconsistency of traction characteristics of the tractor and the aggregated machines at operating speeds and, as a consequence, the lack of an optimum load of the engine by traction (Kutkov, 1980).
The introduction of the latest achievements of science, technology and advanced technologies is of great importance in the development of agricultural production efficiency. The main task in the development of a new system of machines for agricultural production is to increase their productivity, to reduce fuel consumption in various types of work, to decrease the negative consequences of the interaction of the engine with the soil to a minimum. Each modern tractor must be adapted to perform an increasing number of different traction, transport and other works, therefore their designs become more complex. To increase labor productivity, the power-to-weight ratio of tractors and speed of their parts are constantly increasing. But this inevitably leads to an increase in the dynamic loading of the chassis and transmission parts and to an increase in the level of generated oscillations, which increase the vibration load of the working place of an operator.(Antonov, 1978; Hansson, 1994; Gurhan, &Cay, 2008; Duke & Goss, 2007; Marjoram at al, 2008; Zheng at al, 2016; Deboli at al, 2017; Pobedin & Shekhovtsov, 2016).
The negative consequences of these impacts can and should be decreased by installing additional damping devices in the tractor transmission. The effectiveness of their installation has been proved by many researchers (Polifke, 2017; Polifke, 2016; Feuerhuber at al 2013; Hansson, 2002; Fritz & Elsner, 2002).
We have made an attempt to prove the efficiency of introducing a traction mechanism of a damping mechanism into a tractor transmission of a small class. Its theoretical and experimental parameters have been justified. Its effectiveness has been proved.