Design and Test of a Crawler-Type Tiger-Nut Combine Harvester

被引：5
|
作者：
Qu, Zhe [1 ]
Han, Minghui [1 ]
Lv, Yanliu [1 ]
Zhou, Zheng [1 ]
Lv, Zhijun [1 ]
Wang, Wanzhang [1 ]
He, Xun [1 ]
机构：
[1] Henan Agr Univ, Coll Mech & Elect Engn, Zhengzhou 450002, Peoples R China
来源：
AGRICULTURE-BASEL | 2023年 / 13卷 / 02期
基金：
国家重点研发计划;
关键词：
tiger nut; combine harvester; efficient harvesting; mechanical design; field test;
D O I：
10.3390/agriculture13020277
中图分类号：
S3 [农学（农艺学）];
学科分类号：
0901 ;
摘要：
Traditional harvesters of tiger nuts (Cyperus esculentus) face problems including low harvesting efficiency, high loss rate, high impurity rate, and high labor intensity. To solve these problems and improve the harvesting efficiency and quality of tiger nuts, a crawler-type tiger-nut combine harvester that integrates digging, soil removal, picking, screening, and collection was designed. The machinery comprises crawler devices and working devices. The key devices were designed through theoretical analysis. Therein, the digging and hoisting devices consist of digger blades, combined soil-breaking blades, and vibrating hoisting chains. The tuber picking and screening device is composed of the tuber picking drum, double-deck heterodromous vibrating screens, impurity removal blowers, and soil-crushing guide rollers. The crawler devices include the track assemblies and the hydraulic driving systems. SolidWorks was used to establish the virtual prototype model. Combined with simulation using the discrete element software, the law of motion of tiger-nut tubers in the digging, elevation, and screening processes was studied, which verified the feasibility of the design. Finally, a prototype was manufactured and fabricated to conduct field harvesting tests on tiger nuts. Field test results indicate that the harvesting efficiency, harvest rate, and impurity rate of the tiger-nut harvester are separately 0.216 ha/h, 98.14%, and 3.24%, which meet the harvesting requirements for tiger-nut growers.
引用
收藏
页数：20
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