Optimization of the front-mounted fertilizer pipe strip rotary tillage device by modeling the wide-seedbed characteristics and power consumption

IF 7.7 1区农林科学 Q1 AGRICULTURE, MULTIDISCIPLINARY

Computers and Electronics in Agriculture Pub Date : 2024-11-07 DOI:10.1016/j.compag.2024.109624

Pengfei Zhao , Xiaojun Gao , Xiaoteng Ju , Pengkun Yang , Qingbin Song , Yuxiang Huang , Zhiqi Zheng

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引用次数: 0

Abstract

Conventional wheat wide-seedbed strip rotary tillage devices face several disadvantages, including low straw cleaning efficiency, inadequate soil pulverization, inconsistent sowing depth, and high-power consumption. Therefore, this study introduces a novel front-mounted fertilizer pipe wide-seedbed strip rotary tillage device. The fertilizer pipe is strategically positioned within the gap between the rotary tillage blade groups, enabling an integrated operation with the rotary tillage blade assembly. To minimize trenching resistance, the design combines the fertilizer pipe with a sliding knife. Through theoretical analysis, this study analyzes the operating principles of the front-mounted fertilizer pipe wide-seedbed strip rotary tillage device, explores the structural characteristics of the Standard strip rotary tillage blade Group (SG) and Trapezoidal straight blade Group (TG), and examines the sources of power consumption during operation. A corresponding discrete element simulation model is constructed, and its validity is confirmed through soil bin experiments. These experiments underscore the model’s effectiveness. Subsequently, the study compares the effects of the SG and TG on the wide-seedbed strip rotary tillage device based on simulation experiments. Additionally, a regression orthogonal rotation combination experimental design is employed to investigate how the rotation speed of the strip rotary tillage blade group, the forward spacing between the fertilizer pipe and blade shaft, and the types of blades affect straw cleaning and soil crushing. Moreover, response surface methodology is employed to clarify the influence of these factors on the experimental outcomes. Optimization results indicate that under a rotation speed of 270 rpm for the strip rotary tillage blade group, a forward spacing of 30 mm, and a combination of SG and TG, the device performs optimally. Under these conditions, it achieves a theoretical straw cleaning rate of 55.38 %, a soil crushing rate of 79.56 %, and a total power consumption of 3.26 kW. These findings support the development and optimization of wheat wide seedling belt sowing devices.

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通过建立宽苗床特性和动力消耗模型，优化前置式施肥管带旋耕装置

传统的小麦宽苗床条状旋耕装置面临着秸秆清理效率低、土壤粉碎不充分、播种深度不一致、动力消耗大等缺点。因此，本研究引入了一种新型前置式施肥管宽苗床条状旋耕装置。施肥管被巧妙地安置在旋耕刀组之间的缝隙中，实现了与旋耕刀组件的一体化作业。为了最大限度地减少开沟阻力，该设计将施肥管与滑动刀相结合。本研究通过理论分析，分析了前置式施肥管宽苗床带状旋耕装置的工作原理，探讨了标准带状旋耕刀组（SG）和梯形直刀组（TG）的结构特征，并研究了作业过程中的动力消耗源。建立了相应的离散元模拟模型，并通过土仓实验证实了模型的有效性。这些实验证明了模型的有效性。随后，研究根据模拟实验比较了 SG 和 TG 对宽苗床带状旋耕装置的影响。此外，还采用回归正交旋转组合实验设计，研究条带旋耕刀片组的旋转速度、施肥管与刀片轴之间的正向间距以及刀片类型对秸秆清理和土壤粉碎的影响。此外，还采用了响应面方法来阐明这些因素对实验结果的影响。优化结果表明，在条状旋耕刀片组转速为 270 rpm、前进间距为 30 mm 以及 SG 和 TG 组合的条件下，该装置的性能最佳。在这些条件下，该设备的理论秸秆清理率为 55.38%，土壤粉碎率为 79.56%，总功耗为 3.26 千瓦。这些发现为小麦宽苗带播种装置的开发和优化提供了支持。

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来源期刊

Computers and Electronics in Agriculture 工程技术-计算机：跨学科应用

CiteScore

15.30

自引率

14.50%

发文量

800

审稿时长

62 days

期刊介绍： Computers and Electronics in Agriculture provides international coverage of advancements in computer hardware, software, electronic instrumentation, and control systems applied to agricultural challenges. Encompassing agronomy, horticulture, forestry, aquaculture, and animal farming, the journal publishes original papers, reviews, and applications notes. It explores the use of computers and electronics in plant or animal agricultural production, covering topics like agricultural soils, water, pests, controlled environments, and waste. The scope extends to on-farm post-harvest operations and relevant technologies, including artificial intelligence, sensors, machine vision, robotics, networking, and simulation modeling. Its companion journal, Smart Agricultural Technology, continues the focus on smart applications in production agriculture.