Design and Experiment on Cylinder Hill Seeding Device for Ra
发布时间：2022-08-07 14:49
滚筒播种技术已经在国内外广泛应用,特别是在大豆、玉米、花生等大粒径的种子排种器中。在大粒径种子播种作业中这项技术已经较为成熟,但是滚筒播种技术在小粒径的油菜种子播种中的应用还有待研究。排种滚筒是排种器关键部件。其工作过程分为四个阶段:充种过程、清种过程、携种过程和投种过程。本文的研究对象是对油菜的滚筒式排种器,研究目标为良好的播种均匀性能,较低的种子损伤率,更强的适应性,克服伤种和漏种等问题。设计了一种适用于油菜播种的滚筒式排种器,并进行台架和田间试验。实验结果表明,该排种器能够有效的解决传统排种滚筒存在的种子损伤和型孔堵塞问题。使用三维设计软件设计6行滚筒排种器,同时使用仿真软件对所设计的6行滚筒排种器进行仿真分析。可以根据实际需要对6行进行扩展。通过台架试验验证该6行滚筒排种器的速度适应性。该研究提供了一种新的高效的油菜排种器,研究内容如下:（1）系统的分析了不同国家的油菜排种器现状和发展情况。在此基础上确定了滚筒排种器的形式。依据工作环境、农艺要求和仿真分析的结果设计了滚筒排种器关键部件和基本参数:滚筒直径、清种材料、支架和总体方案等。（2）对油菜进行物理和力学特性分析。研究了油...
【文章页数】：62 页
【学位级别】：硕士
【文章目录】：
摘要
Abstract
1. Introduction
2. Literature review
2.1. History of cylinder hill seeding
2.2. Domestic research status of rape seeding apparatus
2.3. Current Situation of foreign metering seeding apparatus
2.4. Seeding classification and working principle
2.5. The basic ideas and methods
2.6. ANSYS and Application EDEM seeding apparatus research
2.7. The purpose and significance of research
2.8. Research objective
2.9. Research content
2.10. Technical route
3. Materials and method
3.1. Materials
3.1.1 The new 2BFQ-6 combined planter
3.1.2. Physical characteristics of rapeseed
3.1.3. Following a brief overview of the seed of important physical and mechanical parameters ofthe test procedures and methods
3.2. The seed moisture content determination
3.2.1. The seeds of the bulk density are measured
3.2.2. Determination of angle repose
3.2.3. Designed and structure
3.2.4. Metering cylinder parameter
3.3. Rows cylinder structure parameters on the performance index of test and analysis this kind of dishtype hole
3.3.1. Cylinder seeding speed
3.4. Design components
3.4.1. Cleaning device
3.4.2. Type of thin steel wire
3.5. Seeding working principle and working process
3.5.1. Working principle
3.5.2. Seed dropping device
3.5.3. Key component parameter design and performance influencing factors
3.6. Type of mechanics analysis
3.6.1. Filling process of mechanic analysis
3.6.2. Seeding cylinder analysis
3.6.3. Track type hole diameter
3.6.4. Push kinds of wire diameter and groove width push species
3.6.5. Seed motion analysis
3.6.6. Seed mechanics and kinematics mathematical model
3.7. Summary of this chapter
4. Result and Discussion
4.1. Seed damage and test
4.2. Seeding damage rate test design
4.2.1. Test material
4.2.2. Test and method
4.3. Damage rate performance test
4.3.1. Push thin wire angle influence on broken rate
4.3.2. Single experiment test
4.3.3. Single factor experiment results and analysis
4.3.4. Type of rapeseed performance
4.4. Seed uniformity test
4.4.1. Improvement measures
4.4.2. Seeding device structure improvement
4.4.3. Seeding cylinder structure improvement
4.4.4. Shape of the groove hole and thin wire of structural improvement
4.5. Field experiments of cylinder hill seeding device
4.6. Summary
5. Cylinder hill seeding rapeseed planter
6. Conclusions and Recommendation
6.1. Conclusion
6.2. Recommendation
7. Acknowledgement
8. Reference
9. Appendix
【参考文献】：
期刊论文
[1]气力式油菜精量排种器试验[J]. 廖庆喜,李继波,覃国良. 农业机械学报. 2009(08)
[2]磁吸滚筒式精密排种器设计与试验[J]. 胡建平,郑赛男,刘文东. 农业机械学报. 2009(03)
本文编号：3670517
【文章页数】：62 页
【学位级别】：硕士
【文章目录】：
摘要
Abstract
1. Introduction
2. Literature review
2.1. History of cylinder hill seeding
2.2. Domestic research status of rape seeding apparatus
2.3. Current Situation of foreign metering seeding apparatus
2.4. Seeding classification and working principle
2.5. The basic ideas and methods
2.6. ANSYS and Application EDEM seeding apparatus research
2.7. The purpose and significance of research
2.8. Research objective
2.9. Research content
2.10. Technical route
3. Materials and method
3.1. Materials
3.1.1 The new 2BFQ-6 combined planter
3.1.2. Physical characteristics of rapeseed
3.1.3. Following a brief overview of the seed of important physical and mechanical parameters ofthe test procedures and methods
3.2. The seed moisture content determination
3.2.1. The seeds of the bulk density are measured
3.2.2. Determination of angle repose
3.2.3. Designed and structure
3.2.4. Metering cylinder parameter
3.3. Rows cylinder structure parameters on the performance index of test and analysis this kind of dishtype hole
3.3.1. Cylinder seeding speed
3.4. Design components
3.4.1. Cleaning device
3.4.2. Type of thin steel wire
3.5. Seeding working principle and working process
3.5.1. Working principle
3.5.2. Seed dropping device
3.5.3. Key component parameter design and performance influencing factors
3.6. Type of mechanics analysis
3.6.1. Filling process of mechanic analysis
3.6.2. Seeding cylinder analysis
3.6.3. Track type hole diameter
3.6.4. Push kinds of wire diameter and groove width push species
3.6.5. Seed motion analysis
3.6.6. Seed mechanics and kinematics mathematical model
3.7. Summary of this chapter
4. Result and Discussion
4.1. Seed damage and test
4.2. Seeding damage rate test design
4.2.1. Test material
4.2.2. Test and method
4.3. Damage rate performance test
4.3.1. Push thin wire angle influence on broken rate
4.3.2. Single experiment test
4.3.3. Single factor experiment results and analysis
4.3.4. Type of rapeseed performance
4.4. Seed uniformity test
4.4.1. Improvement measures
4.4.2. Seeding device structure improvement
4.4.3. Seeding cylinder structure improvement
4.4.4. Shape of the groove hole and thin wire of structural improvement
4.5. Field experiments of cylinder hill seeding device
4.6. Summary
5. Cylinder hill seeding rapeseed planter
6. Conclusions and Recommendation
6.1. Conclusion
6.2. Recommendation
7. Acknowledgement
8. Reference
9. Appendix
【参考文献】：
期刊论文
[1]气力式油菜精量排种器试验[J]. 廖庆喜,李继波,覃国良. 农业机械学报. 2009(08)
[2]磁吸滚筒式精密排种器设计与试验[J]. 胡建平,郑赛男,刘文东. 农业机械学报. 2009(03)
本文编号：3670517
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