Defining and modelling sesame stalk shear behaviour in harvesting by reciprocating cutting blade

Summary: This study investigates the optimization of the structural parameters of the reciprocating cutting system in a tea harvester to reduce cutting resistance and improve harvesting quality. By using bionic blades and cutters inspired by the structural characteristics of cricket mouth, the cutting power consumption is reduced and cutting efficiency is improved. Experimental results show that the bionic blade can effectively reduce cutting resistance. The study also explores the influence of cutter type, cutting speed ratio, and cutting angle on the integrity rate and missing rate of tea shoot. The findings provide guidance for the design of reciprocating cutting systems in tea harvesters and other stalk cutting machinery.