Rationale for the design of the stand for dynamic testing of drive wheels of agricultural transport and technological machines

Introduction. The development of agricultural production technical support implies the creation of new working tools and machines for soil treatment, and their improvement and research. This process is continuously associated with the use of soil channels and experimental facilities that help to determine the nature of interaction of working elements and wheeled drivers of agricultural machinery, including means of small-scale mechanization, with the soil. The purpose of this study is to provide the rationale for the design of the stand for testing the working elements of tillage units and wheels of transport and technological machines in the agro-industrial complex. Materials and Methods. In order to obtain reliable experimental data on the interaction of wheeled propellers of small-scale mechanization with the soil, the analysis of the basic design of the experimental stand to study the working elements of agricultural machinery was conducted. The requirements for the experimental stand were defined. The experimental-measuring complex “Soil Channel” was developed and manufactured on the basis of production facilities of the Prof. Leshchankin Chair of Mobile Power Tools and Agricultural Machinery of the Institute of Mechanics and Power Engineering of National Research Mordovia State University. Results. The analysis of ensuring the stability of translational motion of the experimental stand movable module is given, the technical solution to ensure the uniformity of its motion is substantiated and the choice of the electromagnetic powder brake type size is made. The kinematic diagram and a prototype of the movable module of the experimental stand for the investigation of the driving wheels of power tillers are developed. Discussion and Conclusion. Improvement of the soil channel design by introducing a removable module into it, will provide tests not only of active, traction and traction-driven working tools of tillage machines, but will also allow studying the nature of interaction of their driving wheels with the soil, carrying out simultaneous control of traction force and slipping. These data can be used for modernization of existing machines and working tools, and for developing new units.