Theoretical research of the work of technological equipment for lifting large planting material with a soil clod

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Large woody plants are a promising type of planting material for use in landscaping and forestry. The most labor-intensive technological operation in the process of growing them is lifting. To increase efficiency, this type of work must be performed using special equipment. The aim of the study is to study the process of plantlets lifting with a soil clod based on mathematical modeling methods to determine the optimal design parameters of lifting equipment developed by the authors. For a theoretical study of the equipment working process, a mathematical description of the interaction of the digging working tool with the soil-plant environment is carried out. The research work with the model consisted in the implementation of computer experiments to solve the compiled differential equation of the working tool motion around a fixed axis. Moreover, within the framework of changing the parameters of the working tool and the medium being processed, the dependences of the moments created by the driving forces and resistance forces are recorded. According to the results of the study, patterns of changes in the power characteristics of the digging process were established depending on the parameters of the working tool and the soil-plant environment.