DESIGN AND PERFORMANCE TEST OF DIRECT SEED METERING DEVICE FOR RICE HILL

被引：9
|
作者：
Liquan, Tian [1 ,2 ]
Yongsen, Xiong [1 ,2 ]
Zhao, Ding [1 ]
Zhan, Su [1 ]
机构：
[1] Jinhua Polytech, Coll Engn, Jinhua 321017, Zhejiang, Peoples R China
[2] Key Lab Crop Harvesting Equipment Technol Zhejian, Jinhua 321017, Zhejiang, Peoples R China
来源：
INMATEH-AGRICULTURAL ENGINEERING | 2021年 / 64卷 / 02期
关键词：
direct seeding in rice hill; seed-metering device; spiral groove; design; test; UNIT;
D O I：
10.35633/inmateh-64-25
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
In order to meet the requirements of rice field precision direct seeding in rows and hills, a spiral grooved seed metering device for rice field precision direct seeding in hills is designed. The Matlab software is used to study the movement trajectory of rice buds in the spiral groove during the seeding process. Based on the quadratic regression-orthogonal rotation combination design, and taking the working speed of the seeding wheel, the spiral groove length and the helix angle of the spiral groove as the test factors, as well as the qualified rate of hill diameters, the qualified rate of hill grains and the miss-seeding rate as the indicators, the seed metering performance is tested by JPS-12 metering device test bench. The test data are analyzed by using Design-Expert 6.0.10 software to obtain a mathematical model between the factors and indicators. The test results show that when the spiral groove rise angle is 71.0 degrees, the spiral groove length is 10.8mm, and the working speed of the metering wheel is 23.2r/min, the qualified rate of hill diameter, qualified rate of hill grains and miss-seeding rate are 91.06%, 94.64% and 3.64% respectively. The seeding performance meets the agronomic requirements of rice field seeding.
引用
收藏
页码：257 / 268
页数：12
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