农业机械学报2023，Vol.54Issue(z2)：10-19,10.DOI:10.6041/j.issn.1000-1298.2023.S2.002
丘陵山区自走式马铃薯联合收获机设计与通过性试验
Design and Trafficability Experiment of Self-propelled Potato Harvester in Hilly and Mountainous Areas
摘要
Abstract
Aiming at the shortage of potato combine harvesters and the poor passability of caterpillar chassis in hilly and mountainous areas,a self-propelled potato harvester with chassis walking device and multistage conveying and separating device was designed,and the passability of chassis and harvestability were analyzed theoretically.Firstly,the performance of harvester chassis driving on slope and obstacle crossing was analyzed theoretically,and the critical parameters of chassis passing were obtained.Secondly,the kinematic analysis of potato during harvest was carried out,and the relevant parameters of key working parts were obtained.At the same time,RecurDyn simulation software was used to simulate the multi-body dynamics of the whole machine,and the relevant motion parameters of the self-propelled potato combine suitable for the horizontal and longitudinal slopes in hilly areas,across trenches and straight walls were obtained.The simulation results showed that the maximum climbing angle of longitudinal slope driving was 28°,the maximum slope angle of transverse slope driving was 20°,the maximum height of the machine crossing vertical obstacles was 150 mm,and the maximum crossing trench width was 300 mm.The results showed that the rate of damaged potato and the rate of broken potato were 1.92％and 2.86％,respectively,which met the standard of damaged potato and broken potato less than 2％and 3％,respectively.The harvester can meet the longitudinal.slope of 25° and drive steadily,cross the trench of 300 mm width and climb over the straight wall of 150 mm,which was consistent with the simulation results,and verified the accuracy of the simulation.This study can meet the design requirements of crawler potato harvester driving performance,and provide theoretical basis and reference for the design of crawler root harvester in hilly and mountainous areas.关键词
马铃薯/自走式联合收获机/丘陵山区/RecurDyn仿真/通过性Key words
potatoes/self-propelled harvester/hilly mountainous areas/RecurDyn simulation/trafficability分类
农业科技引用本文复制引用
王法安,曹钦洲,李彦彬,庞有伦,解开婷,张兆国..丘陵山区自走式马铃薯联合收获机设计与通过性试验[J].农业机械学报,2023,54(z2):10-19,10.基金项目
云南省重大科技专项(2018ZC001-3) （2018ZC001-3）
