Development and Evaluation of a Walking Type Two-row Semi-automatic Transplanter for Vegetable Plug Seedlings

文献类型： 外文期刊

第一作者： Han, Luhua

作者： Han, Luhua;Mao, Hanping;Mo, Menghan;Ma, Haorui;Kumi, Francis;Liu, Yang

作者机构：

关键词： Vegetable; Transplant- er; Five-bar planting mechanisms; Qualified ratio; Cost

期刊名称：AMA-AGRICULTURAL MECHANIZATION IN ASIA AFRICA AND LATIN AMERICA （ 影响因子：0.4； 五年影响因子：0.4 ）

ISSN： 0084-5841

年卷期： 2023 年 54 卷 2 期

页码：

收录情况： SCI

摘要： Seedling transplanting mechanization is key to overall success in vegetable production. Thus, in this study, a walking type 2 -row semiautomatic vegetable transplanter was designed and evaluated in the field. The transplanter allows for manual feeding of the seedlings and their subsequent planting by the machine. The machine was designed to be attached to a walking tractor which had a height and spacing adjuster. The transplanting working units were modular in design consisting of distributors, five -bar planting mechanisms, inclined soil compacting wheels, flexible power transmission gearboxes, and seats. Each distributor was designed to have several cups that rotates and release seedlings to be fed into the planting mechanism, and the planting mechanism in turn move up and down to drill holes for placing seedlings in the soil. According to requirements of seedling precision transplanting, the motion dimension relation of the core parts was established. The dynamic analysis of the designed fivebar planting mechanisms was simulated with ADAMS software. The simulations indicated that the static trajectory of the duckbilled cup seemed like an oval shape of an egg, and the dynamic one was the trochoid. After completing the manufacturing prototype, its performance evaluation was conducted under actual production conditions. The performance tests showed that the qualified ratios of success in planting the two seedlings were all more than 90% at a working speed of 35 plants per row per minute. Also, the standard deviation of plant spacing was less than 3 cm, and more than 90% of seedlings were planted to the given depth of 7 cm. Compared to manual transplanting, this mechanical transplanting could obviously save costs and increase benefits.

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