In mountainous and hilly orchards,obstacles are dense and terrain is complex,conventional cutting devices fail to achieve efficient weed control.Our study integrates characteristics such as traditional orchard row spacing and small plant distances.Through on-site investigations in the mountainous and hilly areas of Qingdao,considering the undulating topography and diverse weed types,we designed a self-propelled orchard grass mowing machine cutting mechanism tailored to the demands of mountainous operations.Modal analysis of the cutting disc and kinematic simulation is conducted to verify its structural rationality and operational reliability.Field trials in Qingdao are performed to validate the mowing performance of the cutting mechanism.The results indicate that the average cutting height during field operations is 24.15 mm,with a cutting swath utilization coefficient of 98.96%and a cutting loss rate of 1.54%.The experiments demonstrate that the designed cutting mechanism can enhance weed control efficiency in mountainous and hilly orchards,reduce labor intensity,and meet the operational requirements for orchard weed control.This design holds significant importance in further advancing the mechanization of fruit and timber production,contributing to increased efficiency in orchard management.
维普
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