DESIGN AND EXPERIMENT OF SEED AGITATOR FOR VERTICAL DISK SEED METERING DEVICE
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Published:2021-04-30
Issue:
Volume:
Page:179-188
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ISSN:2068-2239
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Container-title:INMATEH Agricultural Engineering
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language:en
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Short-container-title:INMATEH
Author:
Chen Yulong1, Zhang Meng2, Liu Zeqi3, Lan Yubin1, Yi Lili1, Ji Pengqiang4, Yin Xiang1
Affiliation:
1. 1) School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo 255000, China; 2) Shandong Provincial Collaborative Innovation Centre of Dry-farming Intelligent Agricultural Equipment, Zibo, China 2. School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo 255000, China; 3. School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo 255000, China 4. Shandong Agricultural Machinery Research Institute, Jinan 255000, China 250000, China
Abstract
In order to improve the seed filling performance of mechanical hole type seed metering device with high speed, a vertical disc metering device was designed with seed agitator to improve the seed filling probability. Discrete element simulation method and physical prototype bench tests were used to simulate and analyse the seed metering process. The structure parameters of the seed agitators were optimized by the quadratic orthogonal rotation central composite design test. The results showed that: 1) the addition of seed agitator had a significant influence on the MIS (miss index), among which the concave type had the lowest MIS, and it was the highest without agitator; 2) for concave type agitator, the optimal value of depth and angle were 3.1 mm and 60.5°, respectively; 3) the physical prototype tests showed that the QFI (quality of feed index) was more than 95% under the speed of 2-10 km/h, and the MIS was less than 1%, which meets the requirements of precision sowing.
Publisher
R and D National Institute for Agricultural and Food Industry Machinery - INMA Bucharest
Subject
Industrial and Manufacturing Engineering,Mechanical Engineering,Food Science
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