Improving the soil bin for studying rotary tools taking into account the kinematic features of interaction with the soil

The object of this study is experimental equipment in the form of a soil bin intended for scientific and educational investigation of rotary tools. The task solved was to clarify the specificity of rotary tools operation and to design a small-sized soil bin taking into account this specificity. The data collected during experimental research and theoretical analysis confirmed the determining influence of the kinematic parameter on the indicators of interaction between the rotary tool and soil. As a result of the research, a concept was proposed and a soil mini channel was designed, which makes it possible to investigate the process mechanics and to perform graphic modeling. The result relates to the fact that the mediator of motion transmission during the experiments was a ground trough, and the drive belt is rearranged in engagement with pulleys of different diameters. This provides a different ratio of linear movement of the trough and rotation of the working body. The peculiarity of the design is the combination of variable movable troughs and graphic screens with a stationary position of the rotor. The design provides simplicity and visibility of the assignment of different values of the kinematic parameter. A special feature is the modularity of the structure. This makes it possible to conduct research with variable troughs with different soil composition and immediately acquire a graphic interpretation of the kinematic mode on the screen. This implementation of the soil mini bin simplifies the observation and recording of the result of interaction between the rotor and model environment. The field of practical use is scientific research in the area of agricultural engineering. The data obtained can be used to improve existing tools. The research process is part of the educational process at the agricultural university