摘要
针对新疆现有玉米精密播种存在的问题,利用重力夹持原理设计了一种夹持式玉米精密穴播轮。介绍了其工作原理,设计了主要部件的结构以及尺寸。对穴播轮的充种、清种和投种工作过程进行动力学分析,确定各个阶段的主要工作参数;并运用AMTLAB软件模拟投种运动轨迹,得出了投种运动轨迹与播种速度之间的关系。田间试验表明,在理论播种速度范围内,单粒率最高可达90%,双粒率6%,空穴率4%,可实现精密播种。
According to the existing problem of corn precision seeding technology on the membrane in Xinjiang, a clamping precision corn seed metering device was developed, based on the clamping principle. The working principle of the metering device was introduced, analyzed the main parts of structure;concluded detailed dimension in theory. Dynamic analysis of seed fulfilling, seed clearing and seed discharge. Determining main technical parameters of each stages. Using MATLAB software to simulate track of seed discharge, obtaining the relationship between sowing speed and seed discharge track. The test shows that in theory sowing speed range that dibber wheel can realize precision seeding which single index can be as high as 96% ,multiple index 3% ,miss index 1%.
出处
《农机化研究》
北大核心
2013年第5期72-76,共5页
Journal of Agricultural Mechanization Research
基金
国家自然科学基金项目(50565004)
关键词
玉米
精密穴播轮
夹持式
工作过程
corn
precision sowing wheet
clamping
working process
