农机化研究2025，Vol.47Issue(9)：59-66,8.DOI:10.13427/j.issn.1003-188X.2025.09.009
油茶林深松作业刀具设计研究
Design Research of Cutting Tools for Deep Loosening in Camellia Oleifera Forest
摘要
Abstract
Aiming at the problems of severe soil compaction,strong soil adhesion,and high subsoiling resistance and low efficiency caused by intertwining of internal vegetation roots in southern Camellia oleifera forest,designed a vertical spiral cutting tool that could stabilize subsoiling and had the effect of cutting and winding roots based on the principle of rotary cutting,and studied the structure,principle and motion trajectory of the tool.The finite element model of cutting soil with spiral cutting tool was established based on smooth particle fluid dynamics method.lS-DUNA software was used to simulate the working process of the tool,and the simulation results of soil stress,power consumption and cutting resist-ance were analyzed.The simulation results showed that the maximum equivalent stress tended to 8.7 MPa,the average cutting resistance was 775.4 N,and the total energy consumption was close to 2 kJ.The prototype of spiral cutter was manufactured and the field test was carried out to test the cutting resistance and the actual deep loosening effect of the cutter.Field tests showed that the actual maximum stress of the working head of the spiral cutter was 49.3 MPa,and the resistance value of the field test was 847.9 N,which was 9.2%higher than the simulation data.The average ploughing depth measured was 29.2 cm,and the stability coefficient of the ploughing depth was 97.3%.This study can provide some reference for the research and development of forest subsoiling tools,and lay a foundation for the subsequent optimi-zation of spiral cutting tools.关键词
油茶林/螺旋刀具/土壤切削/计算机仿真Key words
Camellia oleifera forest/spiral cutting tool/soil cutting/computer simulation分类
农业科技引用本文复制引用
金鑫,闵淑辉,廖凯,郭锟..油茶林深松作业刀具设计研究[J].农机化研究,2025,47(9):59-66,8.基金项目
国家重点研发计划项目(2022YFD2202103-1) （2022YFD2202103-1）
