摘要
排种器作为马铃薯机械化播种的关键部件,其目前仍存在重漏指数高、作业效率低、劳动强度大且适应性差等问题,针对以上问题,本研究设计了一种排种链呈三角形布置、取种勺为半杯勺式的新型马铃薯排种器。结合农艺要求和理论分析,对排种器的关键部件进行结构设计;搭建了试验台架,对排种器的排种性能进行试验,以主动轮转速、清种角度、杯勺大小为试验因素,排种性能为试验指标进行正交试验,分析相关因素对排种性能的影响,并得到合理的参数组合。结果表明,主动轮转速为37.5r/min,清种角度为-5°,杯勺选取大号杯勺时,排种器合格指数为93.74%,重种指数为3.99%,漏种指数为2.27%,排种性能较好。
Metering device as key components of potato mechanization planting has problems including the high multiple index and missing index,heavy manual labor intensity,poor universality and other problems.A new type potato seed-metering device with triangular chain and half-cup was designed.The main structure,working principle and related parameters of the device was introduced in detail.An orthogonal experiment was carried out to understand factors including the driving wheel speed,the inclination of the seed-clearing device and the size of cup affect the performance of the seed-metering device.The parameters were optimized and verified.The results showed that the best performance was obtained when the revolving speed of the driving pulley was 37.5 r/min,the inclination of the seed-clearing device was-5°with the biggest size of cup.The qualified index,the multiple index and the missing index is 93.74%,3.99%,and 2.27%,respectively.The performance of metering device under the condition can meet working performance requirements of the potato seeder.It will provide a theoretical and technical reference for studying and designing seed-metering device of potato seeder.
作者
杨锴
段宏兵
宋波涛
陈志鹏
余参参
黄翔
梅红成
YANG Kai1, DUAN Hongbing1,2 ,SONG Botao2, CHEN Zhipeng1, YU Cancan1, HUANG Xiang1,MEI Hongcheng1(1.College of Engineering, Huazhong Agricultural University ,Wuhan 430070, China ; 2.Key Laboratory of Potato Biology and Biotechnology ,Ministry of Agriculture, Wuhan 430070, Chin)
出处
《华中农业大学学报》
CAS
CSCD
北大核心
2018年第2期103-109,共7页
Journal of Huazhong Agricultural University
基金
湖北省科技创新重大项目(2016ABA092)
关键词
马铃薯
排种器
半杯勺
排种性能
potato~ potato seed-metering device~ half-cup~ seeding performanc
