吊杯式移栽机地轮与土壤相互作用力的试验研究
Experimental Study on the Interaction Force between Ground-wheel and Soil of Dibble-type Transplanter
摘要 以2ZB-2型吊杯式移栽机为试验装置,以一次地轮与土壤接触区为研究单元,由薄膜压力传感器及配套的数据采集卡构成数据采集系统,在移栽机稳定工作状态下采集移栽机地轮与土壤的相互作用力,获得基于土壤硬度变化时地轮与土壤正压力模型,分析在不同土壤硬度条件下地轮-土壤接触区域相互作用力的变化趋势.田间试验结果表明:同一土壤硬度下随着地轮的移动,在地轮正下方位置应力值最大;地轮同一截面正应力值大小基本相同,且变化趋势基本相同;随着土壤硬度的增加,应力值逐渐增大.通过对地轮与土壤相互作用力的研究,可为移栽机栽植效果的提高提供依据.
Abstract:
Taking the 2ZB-2type dibble-type transplanting machines as the testing equipment and a ground wheel in contact with the soil as the research unit and through the data acquisition system consisting of the film pressure sensors and supporting data acquisition cards, The positive model of ground wheel and soil based on different soil hardness was established by collecting the interaction force between ground wheel of the transplanters and the soil under the stable oper-ation of the transplanting machine.Finally,the mathematical model of ground wheel slip ratio was established. Field test results show that in the same soil hardness with the ground wheel movement, the maximum stress value is located below the ground wheel; the same stress value of the same section of the ground wheel is basically the same, and the trend is basically the same;with the increase of soil hardness,the stress value increases gradually,and the slip rate of the trans-planting machine decreases. Through the study of the interaction force to the ground wheel with the soil,and provide the basis for improving the planting effect of transplanting machine.
Author: Xu Kun Li Xuying He Shenggen Liu Xuening Hou Zhanfeng
作者单位: 内蒙古农业大学 机电工程学院,呼和浩特,010018
刊 名 农机化研究 PKU
年,卷(期): 2018, 40(9)
分类号: S223.92
机标分类号: S22 S1
在线出版日期: 2018年2月6日
基金项目: 国家自然科学基金项目,内蒙古自治区高等学校研究项目,内蒙古农业大学科技成果转化项目