SU Wei,LAI Qing-hui,LUO Kui,et al.Design and Experiment for Soybean High-speed Precision Vacuum Seed Metering[J].Soybean Science,2014,33(04):594-598.[doi:10.11861/j.issn.1000-9841.2014.04.0594]
气吸式大豆高速精密排种器的设计与试验
- Title:
- Design and Experiment for Soybean High-speed Precision Vacuum Seed Metering
- Keywords:
- Soybean; Seeder; High-speed precision seeding; Vacuum seed metering
- 分类号:
- S565.1
- 文献标志码:
- A
- 摘要:
- 为了解决高速精密播种质量差、单粒率低等问题,设计了一种新型气吸式大豆高速精密排种器,对各部件和关键参数分别进行了结构设计和理论计算,开展了播种性能初步试验。样机台架试验结果表明:在作业速度分别为7,8,9,10,11 km·h-1时,均可获得播种合格指数大于94,漏播指数小于2.5,重播指数小于3.3和变异系数小于20的良好试验效果,说明该排种器能够满足高速精播的要求。
- Abstract:
- In order to solve the problem of poor seeding and low rate of single particle,a high-speed precision vacuum seed metering was designed.The structure designing and the theory calculating for the key components were conducted,and the preliminary experiment of seeding performance was carried out.The experimental results showed that when the speed in operation was 7,8,9,10 and 11 km·h-1,the eligible index could obtain greater than 94,omitting seeding index less than 2.5,rebroadcast index less than 3.3 and variation coefficient less than 20,the experiment results were good.The seed metering could meet the requirement of high-speed precision seeding.
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备注/Memo
基金项目:国家自然科学基金(51305187);云南省级项目(人培)(KKSY201323025,KKSY201323067)。