摘 要
随着农业机械化水平的不断提升，大型联合收割机作为现代化农业生产的关键装备，其性能优化与改进成为提升作业效率和质量的重要研究方向本研究以当前主流大型联合收割机为研究对象，针对其在复杂工况下的适应性不足、能耗较高及智能化水平较低等问题，通过理论分析、数值模拟与田间试验相结合的方法，系统探讨了收割机关键部件的设计改进方案及其对整体性能的影响研究结果表明，通过对割台结构的优化设计，可显著提高作物喂入的均匀性；采用新型脱粒分离系统，有效降低了谷物损失率；同时，基于智能控制技术的能耗管理系统实现了能量利用效率的提升主要创新点在于提出了多目标协同优化的设计思路，并成功开发了一套适用于复杂农田环境的智能调控系统，为提升大型联合收割机的综合性能提供了新路径研究表明，优化后的收割机在作业效率、燃油经济性和智能化水平等方面均表现出显著优势，为推动农业装备技术进步和可持续发展奠定了基础
关键词：大型联合收割机；性能优化；智能化水平
ABSTRACT
With the continuous improvement of agricultural mechanization, large combine harvesters, as key equipment in modern agricultural production, have become an important research focus for enhancing operational efficiency and quality. This study takes mainstream large combine harvesters as the research ob ject, addressing issues such as insufficient adaptability under complex working conditions, high energy consumption, and low levels of intelligence. By integrating theoretical analysis, numerical simulation, and field experiments, this research systematically investigates design improvement schemes for critical components of the harvester and their impact on overall performance. The results indicate that optimizing the cutter platform structure significantly improves the uniformity of crop intake. The adoption of a novel threshing and separation system effectively reduces grain loss rates. Simultaneously, an energy consumption management system based on intelligent control technology enhances energy utilization efficiency. A major innovation lies in proposing a multi-ob jective collaborative optimization design approach and successfully developing an intelligent regulation system suitable for complex farmland environments, providing a new pathway to improve the comprehensive performance of large combine harvesters. The study demonstrates that the optimized harvester exhibits significant advantages in operational efficiency, fuel economy, and intelligence level, laying a foundation for advancing agricultural equipment technology and promoting sustainable development.
KEY WORDS：Large Combined Harvester；Performance Optimization；Intelligence Level
目 录
摘 要 I
ABSTRACT II
第一章 绪论 1
1.1 大型联合收割机性能优化的研究背景与意义 1
1.2 国内外大型联合收割机性能优化的研究现状 1
第二章 大型联合收割机关键部件性能分析 2
2.1 收割装置的工作原理与性能评估 2
2.2 脱粒分离系统的技术改进方向 2
2.3 清选机构的效率提升策略 3
第三章 大型联合收割机能耗与效率优化研究 4
3.1 能耗分布特征及影响因素分析 4
3.2 动力传动系统的优化设计方法 4
3.3 提高作业效率的关键技术路径 4
第四章 大型联合收割机智能化与可靠性改进 6
4.1 智能控制技术在性能优化中的应用 6
4.2 可靠性分析与故障诊断技术研究 6
4.3 新材料与新工艺对性能的影响 7
结 论 8
参考文献 9
致 谢 10
随着农业机械化水平的不断提升，大型联合收割机作为现代化农业生产的关键装备，其性能优化与改进成为提升作业效率和质量的重要研究方向本研究以当前主流大型联合收割机为研究对象，针对其在复杂工况下的适应性不足、能耗较高及智能化水平较低等问题，通过理论分析、数值模拟与田间试验相结合的方法，系统探讨了收割机关键部件的设计改进方案及其对整体性能的影响研究结果表明，通过对割台结构的优化设计，可显著提高作物喂入的均匀性；采用新型脱粒分离系统，有效降低了谷物损失率；同时，基于智能控制技术的能耗管理系统实现了能量利用效率的提升主要创新点在于提出了多目标协同优化的设计思路，并成功开发了一套适用于复杂农田环境的智能调控系统，为提升大型联合收割机的综合性能提供了新路径研究表明，优化后的收割机在作业效率、燃油经济性和智能化水平等方面均表现出显著优势，为推动农业装备技术进步和可持续发展奠定了基础
关键词：大型联合收割机；性能优化；智能化水平
ABSTRACT
With the continuous improvement of agricultural mechanization, large combine harvesters, as key equipment in modern agricultural production, have become an important research focus for enhancing operational efficiency and quality. This study takes mainstream large combine harvesters as the research ob ject, addressing issues such as insufficient adaptability under complex working conditions, high energy consumption, and low levels of intelligence. By integrating theoretical analysis, numerical simulation, and field experiments, this research systematically investigates design improvement schemes for critical components of the harvester and their impact on overall performance. The results indicate that optimizing the cutter platform structure significantly improves the uniformity of crop intake. The adoption of a novel threshing and separation system effectively reduces grain loss rates. Simultaneously, an energy consumption management system based on intelligent control technology enhances energy utilization efficiency. A major innovation lies in proposing a multi-ob jective collaborative optimization design approach and successfully developing an intelligent regulation system suitable for complex farmland environments, providing a new pathway to improve the comprehensive performance of large combine harvesters. The study demonstrates that the optimized harvester exhibits significant advantages in operational efficiency, fuel economy, and intelligence level, laying a foundation for advancing agricultural equipment technology and promoting sustainable development.
KEY WORDS：Large Combined Harvester；Performance Optimization；Intelligence Level
目 录
摘 要 I
ABSTRACT II
第一章 绪论 1
1.1 大型联合收割机性能优化的研究背景与意义 1
1.2 国内外大型联合收割机性能优化的研究现状 1
第二章 大型联合收割机关键部件性能分析 2
2.1 收割装置的工作原理与性能评估 2
2.2 脱粒分离系统的技术改进方向 2
2.3 清选机构的效率提升策略 3
第三章 大型联合收割机能耗与效率优化研究 4
3.1 能耗分布特征及影响因素分析 4
3.2 动力传动系统的优化设计方法 4
3.3 提高作业效率的关键技术路径 4
第四章 大型联合收割机智能化与可靠性改进 6
4.1 智能控制技术在性能优化中的应用 6
4.2 可靠性分析与故障诊断技术研究 6
4.3 新材料与新工艺对性能的影响 7
结 论 8
参考文献 9
致 谢 10
