Design and Optimization of a Double-Concave Rocker Seedmeter for Precision Seeding

作者：Jia Honglei^*; Zhao Jiale; Jiang Xinming; Guo Mingzhuo; Zhuang Jian; Qi Jiangtao; Yuan Hongfang

来源：AMA-Agricultural Mechanization in Asia Africa and Latin America, 2015, 46(2): 29-34.

• seedmeter
• double-concave seed-taking block
• tilting seed-cleaning ring

A new type of seedmeter for soybeans was designed, and its working principle was analyzed and illustrated. The structural parameters of the key component of the seedmeter, the double-concave seed-taking block, were optimized. To meet the requirements for adjusting seeding rate by changing the rotational speed and to offer a theoretical basis for the design of a high-speed, high-performance planter, a rotary speed combination design was developed, with the rotational speed of the seedmeter and the tilt angle of the seed-cleaning ring as experimental factors and the single-seeding rate as the experimental index. A mathematical model based on the experimental data was developed using the Design-Expert software. The experimental results showed that at the optimal tilt angle of 65 and at a rotational speed between 21 rpm and 55 rpm, the seed-cleaning ring can achieve a single-seeding rate of over 95 %.

• 出版日期2015
• 单位吉林大学