Abstract

Agricultural tractors are one of the key means r to implement the agricultural mechanization process in Vietnam. Choosing the right type of tractor and the range of traction to ensure suitability for the tractor working on Vietnamese fields are very important. Base on using Unigraphics NXCAD and SIM CENTER simulation software provided by Siemens AG, we analyzed and selected the configuration of the power transmission system (PTS) of the Thaco tractor including gearbox assemblies, drive axle, other clusters, and then calculated the appropriate gear ratios of the PTS. Besides, we have also designed, calculated, and simulated to optimize the specifications and structures of the PTS of the tractor in order to find out a set of specifications that is suitable for the working ability of the Thaco tractor on specific fields of Vietnam. The results show the selection of the PTS for the Thaco tractor is suitable for the working conditions in the Vietnam’s fields. The designing PTS has the structure that is consistent with domestic manufacturing technology. This PTS is going to be deployed into production under the project of science and technology "Research, Design and Manufacture 4-Wheel Tractor with Vietnamese Brand" of Truong Hai Auto Corporation.