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Design And Test Of Two-Wheeled Walking Hemp Harvester

文献类型：外文期刊

作者： Huang, JC; Shen, C; Ji, AM; Tian, KP; Zhang, B; Li, XW; Chen, QM

作者机构：

关键词： Hemp; Harvester; Structural Design; Parameter Optimization; Productivity

期刊名称： INTERNATIONAL JOURNAL OF AGRICULTURAL AND BIOLOGICAL ENGINEERING

ISSN： 1934-6344

年卷期： 2020 年 13 卷 1 期

页码：

收录情况： JCR（2021版） ; 农林核心（2020版）

摘要： Aiming at the planting characteristics of hemp in southern hilly regions, a two-wheeled walking hemp harvester suitable for harvesting hemp in southern hilly regions is studied and designed. The harvester mainly consists of a header frame, single-moving cutter, cutter mechanical transmission, stalk lifter and reel, stalk divider, stalk horizontal conveyor, wheeled chassis, motor, gearbox, etc. To improve the cutting performance of the two-wheeled walking hemp harvester, response surface tests of three levels are conducted for three factors influencing the operation quality, including the cutting speed, blade length, and forward speed, on the constructed hemp cutting test bench. Moreover, test results are analyzed with the response surface method, and multi-objective optimization is carried out for the regression mathematical model with Design-Expert software. Results show that when the cutting speed is 1.2 m/s, the blade length is 120 mm, forward speed is 0.6 m/s, the cutting efficiency is 38.92 stalks/s, the cutting power is 776.37 W and the failure rate is 6.24%. Trial production of sample machine and field trial are finished according to the optimized parameters and structural design scheme, and the test results reveal that the cutting rate can reach 92.5%, the rate of transmission can reach 86.7%, the productivity is 0.18 hm(2)/h, and all performance indexes can meet the design requirements. This research can provide references for resolving the mechanical harvesting of hemp.

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