华南农业大学学报2011，Vol.32Issue(1)：112-116,5.
气力板式蔬菜排种器吸排种动力学模型研究
Dynamic Model Building of Metering Process for Pneumatic Plate-Type Vegetable Seed Metering Device
摘要
Abstract
For designing high performance pneumatic plate-type vegetable metering device ,dynamic models of seeds during metering process were established. Combined with experiments study, main factors of seeding effects were discussed. The absorption effect can be enhenced by increasing inlet air flow volume of the suction hole, reducing rotation speed of the metering device, increasing sliding friction coefficient between seeds and the seed metering device, and decreasing ann length of the seed metering device. For insuring the seeds can be absorbed stably to their metering position, vacuum degree and diameter of the suction hole should be increased properly for avoiding difficulty of ejection. Increasing static friction characteristics between seeds and seed metering device, reducing rotation speed of the metering device, decreasing arm length of the seed metering device, and properly controlling seed quantity are helpful for stable suction of seeds. When ejecting seeds, the ejection height should be as small as possible, and intensity of the jet flow field should not be too large for preventing rebounding of seeds.关键词
播种机/排种器/蔬菜/气力板式/动力学模型Key words
seeder/ metering device/ vegetable/ pneumatic plate-type/ dynamic model分类
农业科技引用本文复制引用
夏红梅,李志伟,汪刘一..气力板式蔬菜排种器吸排种动力学模型研究[J].华南农业大学学报,2011,32(1):112-116,5.基金项目
广东省农业厅项目"蔬菜播种技术及设备的研制" （）
