气力板式蔬菜排种器设计与试验  

Design and Experiment of the Vegetable Seed Metering Device in Pneumatic Plate-type

作　　者：夏红梅[1] 李志伟[1] 甄文斌[1] 

机构地区：[1]华南农业大学工程学院,广州510642

出　　处：《农业机械学报》2010年第6期56-60,共5页Transactions of the Chinese Society for Agricultural Machinery

基　　金：广东省农业厅资助项目

摘　　要：提出了一种气力板式排种器,进行了具体的结构设计,选取青江小白菜种子进行了播种性能试验。单因素试验结果表明,吸种孔直径增大,单粒率先增大后减小,多粒率总体趋势为增加,空穴率先减小后增大,吸种孔直径对单粒率、多粒率和空穴率的影响都非常显著。相对压力增大,单粒率先增大后减小,多粒率先增大后减小再增大,空穴率先减小后增大。相对压力对单粒率和空穴率的影响非常显著,对多粒率的影响并不显著。生产率增大,单粒率先增大后减小,多粒率总体为先降后增,空穴率呈增大趋势。生产率对单粒率和空穴率的影响非常显著,对多粒率的影响比较显著。Working principle of vegetable seed metering device in pneumatic plate-type was put forward.Correlative structure was designed.Qingjiang cabbage seeds were selected for sowing performance test.Single factor test results showed that with the increase of diameter of suction hole,single-seed rate began to increase and then decreased,multi-seed rate increased,empty-seed rate began to decrease and then increased.Influence of diameter of suction hole on single-seed rate,multi-seed rate and empty-seed rate was highly significant.With the increase of relative pressure,single-seed rate first increased and then decreased,multi-seed rate first increased,then decreased and last increased,empty-seed rate first decreased and then increased.Influence of relative pressure on single-seed rate and empty-seed rate was highly significant,while on multi-seed rate was not significant.With the increase of sowing efficiency,single-seed rate first increased and then decreased,multi-seed rate first decreased and then increased,empty-seed rate increased.Influence of sowing efficiency on single-seed rate and empty-seed rate was highly significant,while on multi-seed rate was not so significant.

关 键 词：排种器 蔬菜 气力板式 设计 试验 

分 类 号：S223.25[农业科学—农业机械化工程]