双圆盘式覆土器运动参数的试验研究  

Experimental Study on Motion Parameters of Double-disc Coverer

作　　者：王景立[1,2] 马旭[3] 叶玉桃[2] 

机构地区：[1]吉林大学生物与农业工程学院,长春130022 [2]吉林农业大学工程技术学院,长春130118 [3]华南农业大学南方农业机械与装备关键技术省部共建教育部重点实验室,广州510642

出　　处：《农机化研究》2011年第3期155-158,共4页Journal of Agricultural Mechanization Research

基　　金：国家“十一五”科技支撑计划项目(2006BAD11A05);高等学校博士学科点专项科研基金项目(20040183024);吉林省科技发展计划项目(20040545)

摘　　要：双圆盘式覆土器是一种新型覆土器,在中小型播种机上应用越来越广泛,其覆土量与覆土过程中对种子触土后位移变化的影响较大。为此,选取不同的运动参数对比分析了八字型覆土器和双圆盘式覆土器的覆土性能,得出了覆土量、种子位移变化量与覆土器运动参数间的关系模型,为精密播种机覆土器的选型和设计提供了依据。The double-disc coverer is widely used in small and medium size of seeder as a new type of coverer.The volume of covering soil has more influence on the seed displacement variation contacting soil during covering soil.The performance of covering soil is studied by choosing various motion parameters between 八-shaped and double-disc coverers.The relationship model among the volume of covering soil,seed displacement variation and motion parameters of coverer is concluded by the experiment.The result provides references for model selection and design of coverer of accurate seeder.

关 键 词：覆土器 运动参数 覆土量 种子位移变化量 

分 类 号：S223.25[农业科学—农业机械化工程]