Authors

Abstract

Aiming at the problems of low mechanization level, poor adaptability of existing planters, and low sowing accuracy for potato sowing in hilly and mountainous areas, this paper developed a high-precision intelligent potato planter based on an electric chassis. Through the design calculation of the seed-metering speed, the maximum critical linear speed of the seed spoon chain was determined to be 1.10 m/s. Through the design and research of the electric chassis control system, the power matching and coordinated operation of the entire machine were achieved. A central composite design experiment was adopted, with travel speed and seed-metering linear speed as influencing factors and the qualified seed potato spacing rate as the indicator. Field experiments were conducted, and through optimization and verification, the optimal parameter combination was obtained: machine forward speed of 0.36 m/s and a metering line speed of 0.23 m/s. Under these conditions, the qualified seed potato spacing rate reached 98.43%, meeting the relevant technical standards. The research shows that the designed electric chassis potato planter has stable performance when operating in hilly and mountainous areas, with broad application prospects. It provides an effective technical solution for the electrification and intelligent development of potato planters.

Abstract in Chinese

本文针对四川丘陵山区马铃薯播种机械化程度低、现有播种机适应性差及播种精度不高等问题，研制了一款基于电动底盘的高精度智能化马铃薯播种机。通过一体化结构设计，实现了电动底盘与播种机的动力匹配；集成光电传感器与雷达传感器构建智能监控系统，实现了排种过程的实时监测与空穴补偿。采用中心复合设计试验，以行走速度和排种器线速度为因素优化作业参数，结果表明二者交互作用对合格率影响显著，最优参数组合为行走速度0.36 m/s、排种器线速度0.23 m/s，此时种薯间距合格率达95.8%。研究验证了电动底盘播种机在丘陵山区应用的可行性与优势，为马铃薯播种机的电动化、智能化发展提供了有效技术方案。