检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
出 处:《中国农机化学报》2016年第7期23-28,共6页Journal of Chinese Agricultural Mechanization
基 金:重庆市科委应用开发计划项目(cstc2013yykfa80003);科技部中小企业创新基金(13C26215115108)
摘 要:针对南方山地丘陵玉米种植区,受地域条件限制,大型农业机械作业困难,而小型农机发展相对不足,设计一种由电机驱动,能调节株距满足玉米不同的种植密度要求的手扶式玉米精量播种机,该播种机主要由铲式穴播器、塔型链轮、调速手把、操作面板、电机驱动装置等组成。对铲式穴播器进行一体化结构参数设计,使排种器、成穴铲、鸭嘴拨块协调工作完成排种、打穴和投种的穴播过程,通过调速手把和操作面板对成穴铲和播种机进行速度匹配,从而实现株距可调功能。田间试验结果表明:漏播率为1.1%,重播率为10.1%,平均株距合格率为96.4%,平均株距变异系数为10.1%,工作性能稳定,满足精量播种的要求。Aiming at southern mountains and hills with corns grown,restricted by geographical conditions,large-scale agricultural machinery can't work easily while small size is underdeveloped.This paper designed a handheld precision seeder for corn driven by a motor,whose plant spacing can be adjusted to different planting density needed by various kinds of corns.This seeder was mainly composed of shovel hill-drop planter,tower chain wheel,variable speed handle,operation panel and motor-driven device.By the integrated design given to shovel hill-drop planter,seed discharge device,cavitation shovel,duckbilled switch and shifting block can work together well to finish hill-drop process including seed discharge,cavitation and seed charge.Variable speed handle and operation panel were used to match the velocity of seeder and cavitation shovel,so that the planting spacing can be changed.The results of field experiment showed that:missing seeding rate was 1.1%,reseeding rate was 10.1%,average qualified rate of plant spacing was96.4%,average coefficient variation of plant spacing was 10.1%.It can work in a steady way and meet require of precision seeding.
分 类 号:S223.2[农业科学—农业机械化工程]
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.28