交错振动式深松机的设计与试验研究
发布时间：2022-01-23 22:10
农用机械对表层土壤的不断翻耕会产生坚硬的犁底层。深松机具的使用可以打破犁底层,使水分和植物的根系能到更深的土壤中。但深松机具需要很大的牵引力和大马力拖拉机来带动,严重地制约了深松技术的发展。振动深松是减少耕作阻力的一项新技术。现有的振动深松机大部分深松铲尖需要同一时间穿透坚硬的土壤,从而引起了土壤阻力的提高,增加了牵引力。常见的振动深松机在田间作业时,拖拉机手还会因为振动深松机的振动传递到拖拉机上而感到不适。本论文的研究为解决上述存在的问题,设计了一种新型的V型交错振动深松施肥机,优化改进深松铲来穿透土壤并克服阻力,同时使振动深松机在工作时保持平衡和振动稳定来为拖拉机手提供好的工作环境。新设计的振动深松机主要包括五个部分,（1）交错往复运动单元（2）动力提供转化装置（3）偏心结构单元（4）主机架（5）深度控制机构和施肥系统。2012年和2013年连续两年在中国河北省固安县进行测试。主要研究内容和样机的性能结果如下：-通过铲柄模型分析、铲柄受力分析以及研究铲柄阻力下降的机理,得到了相应的设计参数。计算得出振动方程式并绘制铲柄运动轨迹,确定速度、振幅、频率以及实际运动轨迹的关系,便于优化和...
【文章来源】：中国农业大学北京市 211工程院校 985工程院校 教育部直属院校
【文章页数】：139 页
【学位级别】：博士
【文章目录】：
摘要
Abstract
Chapter Ⅰ Introduction
1.1 Background
1.2 Review of literature
1.3 Problem definition:(justification of the development of vibratory sub-soil)
1.4 Study objectives
1.5 study outline
Chapter Ⅱ Design and fabrication
2.1 Types of vibrating mechanism
2.2 Basic Principle of Anti-drag
2.3 Forced oscilation of soil cutting process
2.4 Tool vibratory Movement
2.5 Soil model of subsoiling operation
2.6 Optimal selection and selection criteria for the shanks
2.7 Subsoiler shank force analysis
2.8 Vibration trajectory
2.9 The main design ideas and working principles of new a staggered reciprocal vibratory subsoiler with fertilizer application
2.10 Key design parameters
2.11 Crank unit
2.12 Fertilizer system and depth control unit
2.13 Arrangement of shanks on the new applicator
2.14 Fabrication of the implement
2.15 Specifications of the new design
Chapter Ⅲ Material and methods
3.1 Materials
3.2 Methods
3.3 Measurements
3.4 statistics analysis
Chapter Ⅳ Fields evaluation results and discussion
4.1 Effect of new developed vibratory plow on machine performance
4.2 Effect of new developed vibratory plow on soil properties
Chapter Ⅴ Summary,Conclusions,Future Perspectives and Innovations
5.1 Summary
5.2 Conclusions
5.3 Future perspectives
5.4 Innovations
References
Preface and Acknowledgments
Personal statement
【参考文献】：
期刊论文
[1]Effects of Subsoiling on Soil Moisture Under No-Tillage for Two Years[J]. QIN Hong-ling1,GAO Wang-sheng2,MA Yue-cun3,MA Li2,YIN Chun-mei2,CHEN Zhe1 and CHEN Chun-lan1 1 Institute of Subtropical Agriculture,Chinese Academy of Sciences,Changsha 410125,P.R.China 2 College of Agronomy and Biotechnology,China Agricultural University,Beijing 100094,P.R.China 3 Soil and Fertilizer Institute,Hunan Academy of Agricultural Sciences,Changsha 410125,P.R.China. Agricultural Sciences in China. 2008(01)
本文编号：3605243
【文章来源】：中国农业大学北京市 211工程院校 985工程院校 教育部直属院校
【文章页数】：139 页
【学位级别】：博士
【文章目录】：
摘要
Abstract
Chapter Ⅰ Introduction
1.1 Background
1.2 Review of literature
1.3 Problem definition:(justification of the development of vibratory sub-soil)
1.4 Study objectives
1.5 study outline
Chapter Ⅱ Design and fabrication
2.1 Types of vibrating mechanism
2.2 Basic Principle of Anti-drag
2.3 Forced oscilation of soil cutting process
2.4 Tool vibratory Movement
2.5 Soil model of subsoiling operation
2.6 Optimal selection and selection criteria for the shanks
2.7 Subsoiler shank force analysis
2.8 Vibration trajectory
2.9 The main design ideas and working principles of new a staggered reciprocal vibratory subsoiler with fertilizer application
2.10 Key design parameters
2.11 Crank unit
2.12 Fertilizer system and depth control unit
2.13 Arrangement of shanks on the new applicator
2.14 Fabrication of the implement
2.15 Specifications of the new design
Chapter Ⅲ Material and methods
3.1 Materials
3.2 Methods
3.3 Measurements
3.4 statistics analysis
Chapter Ⅳ Fields evaluation results and discussion
4.1 Effect of new developed vibratory plow on machine performance
4.2 Effect of new developed vibratory plow on soil properties
Chapter Ⅴ Summary,Conclusions,Future Perspectives and Innovations
5.1 Summary
5.2 Conclusions
5.3 Future perspectives
5.4 Innovations
References
Preface and Acknowledgments
Personal statement
【参考文献】：
期刊论文
[1]Effects of Subsoiling on Soil Moisture Under No-Tillage for Two Years[J]. QIN Hong-ling1,GAO Wang-sheng2,MA Yue-cun3,MA Li2,YIN Chun-mei2,CHEN Zhe1 and CHEN Chun-lan1 1 Institute of Subtropical Agriculture,Chinese Academy of Sciences,Changsha 410125,P.R.China 2 College of Agronomy and Biotechnology,China Agricultural University,Beijing 100094,P.R.China 3 Soil and Fertilizer Institute,Hunan Academy of Agricultural Sciences,Changsha 410125,P.R.China. Agricultural Sciences in China. 2008(01)
本文编号：3605243
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