| 摘要: |
| 为提高小区播种作业各排种环节的排种性能,以小区播种机充种装置为研究对象,采用通用旋转组合试验设计方案,研究小区播种机前进速度v、充种装置转动速度ω、充种装置锥体母线长度l和充种装置锥体底角角度α,对油菜和小麦种子充种均匀性变异系数的影响。通过DPS 7.05数据处理系统获得了4个试验因素对油菜、小麦种子充种均匀性变异系数的影响回归方程,确定了各因素的影响顺序:1) 油菜种子,充种装置锥体母线长度＞充种装置锥体底角角度＞小区播种机前进速度＞充种装置转动速度;2) 小麦种子,充种装置锥体底角角度＞充种装置锥体母线长度＞充种装置转动速度＞小区播种机前进速度。确定了针对油菜、小麦种子的充种装置结构及工作环境的最佳参数,即小区播种机前进速度0.4 m/s、充种装置转动速度0.25 rad/s、充种装置锥体母线长度0.1 m、充种装置锥体底角角度50°;在最佳参数条件下,油菜和小麦种子播量分别为5 和180 g时,充种装置最适合育种试验的长度为10 m,充种均匀性变异系数分别为5.68%和7.85%。 |
| 关键词: 小区播种机 充种均匀性 育种机械 性能试验 |
| DOI：10.11841/j.issn.1007-4333.2011.03.027 |
| 投稿时间：2010-11-15 |
| 基金项目:国家"948"项目(2009-Z22) |
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| Test on performance of seed-filling device of plot seeder |
|
LIU Shu-guang1,2, SHANG Shu-qi1, YANG Ran-bing1, ZHENG Yue-nan1, WANG Yan-yao1, ZHAO Da-jun1, ZHAO Jian-liang1
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| (1.College of Mechanical and Electrical Engineering,Qingdao Agricultural University,Qingdao 266109,China;2.College of Science and Technology,China Agricultural University (Yantai),Yantai 264670,China) |
| Abstract: |
| In order to improve the performance of metering parts,a seed-filling device of plot seeder was studied in the paper.The influence of four test factors (motion velocity of plot seeder (v),rotation speed of seed-filling device (ω),generatrix length of seed-filling device (l) and base angle of seed-filling device (α)) on CV of the uniformity in seeding-filling process for rape seed and wheat seed were analyzed by the quadratic general rotational combination design.With DPS 7.05 Data Processing System the regression equations of the uniformity in seed-filling process on the four test factors were established.The effect order of four test factors obtained by the regression equations is generatrix length of seed-filling device>base angle of seed-filling device＞motion velocity of plot seeder>rotation speed of seed-filling device for rape seed and base angle of seed-filling device＞generatrix length of seed-filling device＞rotation speed of seed-filling device＞motion velocity of plot seeder for wheat seed.The optimum parameters about structure and operational environment for rape seed and wheat seed established by analysis are as follows:motion velocity 0.4 m/s,rotation speed of filling device 0.25 rad/s,generatrix length of seed-filling device 0.1 m and base angle of seed-filling device 50°.From the result the best plot length for the seed-filling device is 10 m and the best CVs in seed-filling process for rape seed and wheat seed are 5.68% and 7.85%,respectively,when seeding rate for rape seed and wheat seed are 5 and 180 g/plot. |
| Key words: plot seeder uniformity in seed-filling process breeding machine performance test |
