Increasing the durability of power transmissions of MPF by reducing their dynamic loading

The purpose of this research is to determine the durability of the tractor structural elements by a computational and experimental method and, based on the results of calculations, determine the change in the loading of the power transmission parts when an elastic-damping mechanism is installed in it. The obtained results of the calculated and experimental values of the loading of the elements of the power transmission of a serial tractor and a tractor with a ЕDM show that the durability of an experimental tractor is on average up to 2.5 times greater than the durability of a tractor with a serial power transmission. The increase in durability is explained by a decrease in the load on the parts (the calculations were carried out based on the results of the change in the torque) of the power transmission of the tractor when an elastic-damping mechanism is installed in it. The listed results indicate that the use of ЕDM in the power transmission of a tractor of traction class 1.4 during operation with the main agricultural machines can significantly reduce the workloads on the elements of the power transmission. The organization of the article is structured as follows. The section “Introduction” is devoted to the problem of improving the power transmissions of tractors. Various works of domestic and foreign researchers in the field of improving the performance indicators of tractors are presented. The same section provides additional background information about our previous studies, the background of studies of the elastic-damping mechanism (UDM) installed in the power transmission of a tractor of a small traction class. The section “Materials and Methods” contains a description of the applied method and the sequence of actions for conducting research. Sections “Research Results and Discussions” contain the results of the work done and their discussion, including the interpretation of the data analysis. The section “Conclusion” is a generalization of the main results in which the results of the research are summed up.