Numerical Simulation and Bench Test of Crawler-Type Cotton Time-Delay Hole-Forming Device Based on RecurDyn-EDEM Coupling

文献类型： 外文期刊

第一作者： Pan, Feng

作者： Pan, Feng;Chen, Jincheng;Zhang, Hualin;Wang, Baiwei;Jiang, Xizhen;Ji, Chao;Pan, Feng;Chen, Jincheng;Zhang, Hualin;Wang, Baiwei;Jiang, Xizhen;Ji, Chao;Zhang, Hualin;Jiang, Xizhen

作者机构：

关键词： cotton; crawler-type; delayed hole-forming device; coupling simulation; field experiment; soil bin test

期刊名称：MACHINES （ 影响因子：2.1； 五年影响因子：2.2 ）

ISSN：

年卷期： 2024 年 12 卷 7 期

页码：

收录情况： SCI

摘要： In view of the challenges faced by cotton dibbler in Xinjiang under high-speed operation, a novel crawler-type delayed hole-forming device has been designed to address the seed throwing and floating issues in high-speed cotton dibbling in Xinjiang, enhancing the duck bill's performance. This mechanism increases the sowing speed to 6 km/h by extending the duck bill horizontally. Utilizing agronomic principles, the mechanism's layout and key components were optimized for efficient hole-forming. DEM and multi-body dynamics simulations were employed to analyze the motion, focusing on the fixed the tilt angle of the duck bill (A), the depth of the duck bill hole-forming into the soil (B), and the angle of rotation of the moving duck bill (C) as factors affecting hole dimensions (longitudinal length of hole Y1 and hole-forming depth of cotton seed hole Y2). Quadratic regression test using RecurDyn-EDEM coupling identified optimal parameter settings for maximum hole-forming performance. When A was 2.4 degrees, B was 42.4 mm, and C was 30.5 degrees, the performance of the hole-forming was the best. Under the optimal parameter combination, the bench verification test was carried out. The error between the bench verification results and the simulation results is small, indicating that the model has high accuracy. The average opening time of the duck bill at a speed of 6 km/h is 0.45 s, which is much longer than the time required for cotton seeds to fall from the duck bill (0.11 s). It meets the requirements of high-speed cotton planting in China and facilitating advancements high-speed planter technology.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序