水稻钵盘精量播种机充种性能试验  

Performance experiments of bowl dish precision seeder for rice in filling processing

作　　者：陶桂香[1] 衣淑娟[1] 汪春[1] 毛欣[1] 王睿晗[1] 

机构地区：[1]黑龙江八一农垦大学工程学院,大庆163319

出　　处：《农业工程学报》2013年第8期44-50,共7页Transactions of the Chinese Society of Agricultural Engineering

基　　金：高等学校博士学科专项科研基金联合资助课题(305110002);黑龙江省科技攻关项目(GZ11B109);黑龙江教育厅科学技术研究项目资助(12531439)

摘　　要：为优化水稻钵盘精量播种机有关参数,以提高其充种性能。利用研制的水稻钵盘精量播种机进行了三因素五水平二次正交旋转组合试验,研究了型孔直径、型孔厚度、种箱速度对充种率、损伤率和空穴率的影响。结果表明影响充种率和空穴率的因素主次顺序为型孔直径、型孔厚度、种箱速度;影响损伤率的因素主次顺序为型孔直径、种箱速度、型孔厚度;确定较优参数组合为型孔直径10mm、型孔厚度4mm、种箱速度0.115m/s;此时充种率94.81%、损伤率0.479%、空穴率0.46%,研究结果为水稻钵盘精量播种机设计与性能改进提供依据。Bowl dish precision seeder for rice mainly includes a filling process and a dropping process. In the course of sowing, rice was filled into shaped hole at first, and fell into trays finally by flap driven. In filling process, there are differences in physical characteristics among rice, feature of bud easily injured and interactive effect of structural parameters that create some difficulties in determining the optimal structure parameters. According to commonly data used in production and previous test results, there are three main factors： the diameter of the shaped hole, the thickness of shaped hole and seed boxes velocity that impact filling performance. In order to optimize the parameters of rice bowl dish precision seeder, and improve its filling performance, on condition that brush seed wheels diameter is 78 mm, brush seed wheels high is 3 mm, shaped hole center distance is 19.3 mm, seed box wide is 342 mm, shaped hole is round, rice varieties is kongyu131, bud length is 1-2 mm, rice length 7.0-7.4 mm, rice wide is 3.6-4.0 mm, rice thickness is 2.3-2.6 mm, selected shaped hole diameter , shaped hole thickness and seed boxes velocity as experimental factors, selected filling rate, hole rate and damage rate as performance indicators. The model was established considering nonlinear regression between shaped hole diameter, shaped hole thickness and seed boxes velocity and filling rate, hole rate and damage rate using self-developed rice bowl dish precision seeder by quadratic orthogonal rotary experiments. The method can overcome the shortcomings of the conventional orthogonal experiment. Statistical analysis by computer, and simulation optimization, identify the best combination of the multiple factors and trends. The research results can provide a reference for the design and performance improvement of a rice bowl dish precision seeder. The experimental results showed： 1） the influences of shaped hole diameter, shaped hole thickness and seed boxes velocity on the rate of filling and the rate of cavity

关 键 词：农业机械 种子 充种 钵盘精量播种机 二次正交旋转组合试验 水稻 

分 类 号：S223.23[农业科学—农业机械化工程]