数字农科院2.0

Design and experiment of key mechanism of root cutting device for heading vegetables

文献类型： 外文期刊

作者： Zhang, Jianfei;Li, Yanjun;Chen, Yanguo;Wang, Mingsheng;Yu, Yongtao

作者机构：

关键词： Heading vegetables;Root cutting device;Simulation experiment;Orthogonal test

期刊名称： SCIENTIFIC REPORTS

ISSN： 2045-2322

年卷期： 2025 年 15 卷 1 期

页码：

收录情况： SCIE（2025版）

摘要： Because the root cutting process in the mechanized harvesting process of heading vegetables is important. A common root cutting device for heading vegetables was designed. In this paper, according to the motion analysis and mechanical analysis of the root cutting process of heading vegetables, the conditions of no leakage cutting during the harvest of heading vegetables was determined. And the combination of the cutter blade for the combination of light-edged disc blade and serrated disc blade were also determined. The cutter blade disk was designed accordingly. ANSYS modal analysis was used to verify the reasonableness of the design of the cutter and the disk. The simulation test of the factors affecting the maximum root cutting force and internal energy of root cutting was carried out by using LS-DYNA. The influences of the rotational speed of the cutter, the traveling speed, the inclination angle of the cutter and the overlap amount of the cutter on the maximum root cutting force and internal energy of root cutting were obtained. Further, a four-factor, three-level quadratic rotation orthogonal test was conducted. The root cutting power of the root cutting device is lowest when the cutting knife speed is 200 r/min, the conveying speed is 0.3 m/s, the cutting knife inclination angle is 10 degrees, and the knife overlap amount is 20 mm.

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