A self-propelled straw picking and baling device has been designed to address the issues of low mechaniza-tion and high manual labor intensity in the harvesting of wasted straw in the fields of southern regions.It can com-plete integrated operation processes such as straw picking,feeding,conveying,and compression into bales,which can effectively promote the comprehensive use of straw resources.In this paper,the structural parameters of the key moving parts of the whole machine were calculated and designed,and the motion laws of different unit points of the compression device were obtained through simulation.Then the constrained mode simulation of the main frame was completed in ANSYS,and the relationship between natural frequency and multi-source excitation of the body was ob-tained.Finally,field harvesting experiments were conducted on the entire machine to comprehensively evaluate its operational performance.The results showed that the baling rate and regular baling rate were 98.94％ and 97.47％,respectively.The average size of formed straw bales was 65 cm × 50 cm × 36 cm,with an average mass of 16.02 kg,the density of 137.42 kg·m-3,the resistance rate of 96.25％,the total loss rate of 2.95％,and the pure working hour productivity of 0.8325 t·h-1 .This study can provide reference for the development and subsequent optimiza-tion of the integrated machine for picking,transporting,and baling wasted straw in field.
关键词
秸秆收获/捡拾打捆机/装置结构设计/田间性能试验
Key words
straw harvesting/self-propelled baler/structural design of the device/field performance test
维普
万方数据