设计和实验大豆无轴螺旋种子排放和种子输送装置的设计和实验
Huibin Zhu1, Xian Wu1, Lizhen Bai2
1Faculty of Modern Agricultural Engineering, Kunming University of Science and Technology, Kunming, 650500, China.
Scientific reports
|November 25, 2023
概括
一种新的没有轴的螺旋式大豆种子装置改善了西南中国的无耕种种植者表现. 这种设计增强了种子排放和指导,满足了当地农业学对质量播种的需求.
科学领域:
- 农业工程 农业工程
- 精准农业 精准农业 精准农业
- 土壤科学 土壤科学
背景情况:
- 中国西南地区的无耕种植者面临着地面冲击和振动的挑战,导致种子排放和指导不佳.
- 碎碎叶片会引起种植者振动,对播种精度产生负面影响.
研究的目的:
- 设计和优化一个没有轴的螺旋式大豆种子排放和输送装置,用于在具有挑战性的地形上运行的无耕种种植者.
- 改善在地面平整不良和远距离种子交付条件下播种性能.
主要方法:
- 设计了一种基于螺旋输送原理的无轴螺旋式大豆种子装置.
- 分析了大豆种子的特性,并使用离散元件方法 (EDEM) 和RecurDyn.模拟了设备性能.
- 进行二次回归直角旋转测试和响应表面分析以优化操作参数.
主要成果:
- 优化的参数包括螺旋间距 (11.4毫米),外半径 (5.5毫米),内半径 (2.9毫米) 和旋转速度 (10.4 r·s−1).
- 实地试验表明种植合格率高 (92.6%),种植多重种植率低 (5.03%),种植缺失 (2.4%),以及损坏指数 (0.92%).
- 该设备在模拟的恶劣地面条件下有效运行 (16.1°的斜率,8.9厘米的平坦度,75.2赫兹的振动).
结论:
- 设计的没有轴的螺旋式大豆播种装置符合在具有挑战性的环境中无耕种的质量要求.
- 这种设备提供了一种可行的解决方案,可以在困难的田间条件下改善种子排放器和种子导管的性能.
- 为未来的农业机械设计提供参考,专注于提高播种精度和效率.
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