不同曲面分禾器对分禾的影响及其作业受力分析

目的 研究棉花密植栽培模式下,雾滴无法穿透棉花冠层,影响植株中下部受药效果,研究不同曲面分禾器对分禾的影响及其作业受力分析。方法 建立以数学理论为基础的数字化模型,对分禾器工作瞬态作受力分析、棉枝弹性形变分析。结果 在相同扰动情况下,抛物线曲面上同一作用力对分禾曲面造成的压力逐渐减小,在分禾器末端降至23N。结论 抛物线曲面分禾器在通过阻力最低,为三种分禾器中效果最佳的分禾型式。

Influence of Different Curved Surface Graft Dividers on Graft Distribution and Analysis of Their Working Force

Objective To solve the problems caused by dense planting and cultivation mode of cotton in Xinjiang. For example, the fog droplets could not penetrate the crop canopy and the effect of insecticides on the middle and lower parts of cotton plants was poor.Method Through the establishment of a digital model based on mathematical theory, the transient stress analysis of the grain divider and the elastic deformation analysis of cotton branch were carried out.Results Under the same disturbance, the pressure on the splitting surface caused by the same force on the parabolic surface decreased gradually, and it dropped to 23N at the end of the divider. Conclusion The parabolic surface divider has the lowest passing resistance and is the best dividing type among the three dividers.