Automatic Precision Planting Mechanism of Garlic Seeder

Guilin Chen, Yifan Yao, Lili Yi, Xiang Yin (), Juan Du and Jun Chong
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Guilin Chen: School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo 255000, China
Yifan Yao: School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo 255000, China
Lili Yi: School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo 255000, China
Xiang Yin: School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo 255000, China
Juan Du: School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo 255000, China
Jun Chong: Ji’nan Huaqing Agricultural Machinery Technology Co., Ltd., Ji’nan 251600, China

Agriculture, 2025, vol. 15, issue 8, 1-19

Abstract: With the advancement of modern agricultural technology, precision seeding has emerged as a critical approach to enhancing the crop yield and quality. Consequently, a garlic seeder insertion mechanism was developed to improve the accuracy and efficiency of garlic seeding. The single-seed extraction mechanism and the adjustment mechanism for the garlic clove direction were designed based on the appearance dimensions of garlic cloves, enabling precise single-seed selection and orientation. A kinematic model of the insertion planting process was established, with key parameters meticulously described and analyzed, providing theoretical support for determining optimal insertion parameters. A timing sequential control method was adopted to accurately control the periodic motion of the insertion planting mechanism. A speed detection device was utilized to monitor the travel speed of the crawler-type chassis and a rotational speed controller was developed to accurately regulate the rotational speed of the insertion mechanism, ensuring uniform planting distances. Field trials demonstrated that when the preset planting distance was set at 150 mm and sowing operations were conducted at speeds of 0.10 m/s, 0.15 m/s, and 0.20 m/s, the average sowing spacing values were 148 mm, 149 mm, and 151 mm, respectively, the maximum sowing spacing error and root mean square (RMS) error were 30 mm and 7 mm, with an average error of less than 10 mm, and the maximum coefficient of variation was 0.046. The upright rate exceeded 85%, and the missing seeding rate was below 5%. The above results indicated that the designed garlic planting machine insertion mechanism and control method conform to the agronomic requirements for garlic sowing operations.

Keywords: garlic planter; insertion mechanism; sowing spacing; timing sequential control; periodic motion (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2025
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