大型偏航变桨齿轮箱轻量化设计技术研究
发布时间：2019-05-14 19:25
【摘要】：偏航变桨齿轮箱作为偏航系统和变桨系统的关键部件，其性能和运行可靠性直接影响风电机组的运行质量和发电效率。由于工况的特殊性，偏航变桨齿轮箱在结构和性能上都有很高的要求。设计上不仅要求承载能力强、无维修工作寿命长，更关键的是还要求体积小、重量轻、结构紧凑。目前，国内大功率风力发电机组用偏航变桨齿轮箱大多采用多级行星齿轮传动结构。本文结合其使用工况，针对风电偏航变桨齿轮箱轻量化和高可靠性设计要求，对行星齿轮箱的关键技术进行了研究，主要完成了以下工作： 1.分析了行星齿轮传动系统轮齿啮合作用力及基本构件上的转矩，分析了行星轮轴承及基本构件轴上的作用力；依据国家标准《渐开线圆柱齿轮承载能力计算方法》（GB3480-1997），结合行星齿轮传动的自身特点，分析了行星齿轮传动的承载能力计算方法，为后续的研究提供理论基础。 2.在满足传动系统中零件的强度、使用寿命等条件下，以追求功率密度最大为准则，采用多目标设计，建立了偏航齿轮箱参数优化模型，通过编程对其关键传动参数进行了优化。 3.正确预测轴承寿命不仅是确保传动系统正常工作的关键，同时对传动系统结构尺寸也有着重要影响；本文结合标准ISO281：2007《Rollingbearings-Dynamic load ratings and rating life》，对滚动轴承的扩展寿命计算方法、修正系数计算方法进行了研究，对影响轴承寿命的主要因素进行了深入分析。 4.建立了单臂行星架的有限元模型，分析了结构参数对单臂行星架强度、刚度的影响；给出了单臂行星架沿轴向、径向方向强度和刚度的大致分布规律；对比分析了单臂行星架圆形结构和三角形结构的应力和变形情况。 5．针对双臂行星架的有限元模型，，分析了连接板厚度、输入端侧板厚度等结构参数对双臂行星架强度和刚度的影响情况；对同规格的单、双臂行星架就强度、刚度和质量方面进行了综合对比分析。 6．构建了多级行星齿轮箱的箱体装配体模型，以SolidWorks Simulation为分析平台，对箱体的应力、变形、模态等动静态特性进行了研究，为箱体的轻量化设计提供依据。
[Abstract]:As the key component of yaw system and variable propeller system, the performance and operation reliability of yaw variable propeller gearbox directly affect the operation quality and power generation efficiency of wind turbine. Due to the particularity of working conditions, yaw variable paddle gearboxes have high requirements in structure and performance. The design not only requires strong bearing capacity and long service life without maintenance, but also requires small volume, light weight and compact structure. At present, most of the yaw variable paddle gearboxes for high-power wind turbines in China use multi-stage planet gear transmission structure. In this paper, according to its operating conditions, aiming at the requirements of lightweight and high reliability design of wind power yaw variable propeller gearbox, the key technology of planet gearbox is studied, and the main work is as follows: 1. The gear tooth meshing force and the torque on the basic components of the planet gear transmission system are analyzed, and the forces on the planet gear bearings and the shafts of the basic components are analyzed. According to the national standard "calculation method of bearing capacity of involute cylindrical gear" (GB3480-1997), combined with the characteristics of planet gear transmission, the calculation method of bearing capacity of planet gear transmission is analyzed, which provides a theoretical basis for subsequent research. 2. Under the condition of satisfying the strength and service life of the parts in the transmission system, taking the pursuit of the maximum power density as the criterion, the parameter optimization model of yaw gearbox is established by using multi-objective design, and the key transmission parameters are optimized by programming. 3. Correctly predicting the bearing life is not only the key to ensure the normal operation of the transmission system, but also has an important impact on the structural size of the transmission system. In this paper, based on the standard ISO281:2007 < Rollingbearings-Dynamic load ratings and rating life >, the calculation method of extended life and correction coefficient of rolling bearing are studied, and the main factors affecting bearing life are analyzed in detail. 4. The finite element model of single arm planet frame is established, the influence of structural parameters on the strength and stiffness of single arm planet frame is analyzed, and the general distribution law of strength and stiffness of single arm planet frame along axial and radial direction is given. The stress and deformation of circular structure and triangular structure of single-arm planet frame are compared and analyzed. 5. According to the finite element model of dual-arm planet frame, the influence of structural parameters such as connection plate thickness and input side plate thickness on the strength and stiffness of dual-arm planet frame is analyzed. The strength, stiffness and mass of single and dual-arm planet frames of the same specification are compared and analyzed. 6. The box assembly model of multi-stage planet gearbox is constructed. Based on SolidWorks Simulation, the dynamic and static characteristics of the box, such as stress, deformation, mode and so on, are studied, which provides the basis for the lightweight design of the box.
【学位授予单位】：机械科学研究总院
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH132.41
本文编号：2476986
[Abstract]:As the key component of yaw system and variable propeller system, the performance and operation reliability of yaw variable propeller gearbox directly affect the operation quality and power generation efficiency of wind turbine. Due to the particularity of working conditions, yaw variable paddle gearboxes have high requirements in structure and performance. The design not only requires strong bearing capacity and long service life without maintenance, but also requires small volume, light weight and compact structure. At present, most of the yaw variable paddle gearboxes for high-power wind turbines in China use multi-stage planet gear transmission structure. In this paper, according to its operating conditions, aiming at the requirements of lightweight and high reliability design of wind power yaw variable propeller gearbox, the key technology of planet gearbox is studied, and the main work is as follows: 1. The gear tooth meshing force and the torque on the basic components of the planet gear transmission system are analyzed, and the forces on the planet gear bearings and the shafts of the basic components are analyzed. According to the national standard "calculation method of bearing capacity of involute cylindrical gear" (GB3480-1997), combined with the characteristics of planet gear transmission, the calculation method of bearing capacity of planet gear transmission is analyzed, which provides a theoretical basis for subsequent research. 2. Under the condition of satisfying the strength and service life of the parts in the transmission system, taking the pursuit of the maximum power density as the criterion, the parameter optimization model of yaw gearbox is established by using multi-objective design, and the key transmission parameters are optimized by programming. 3. Correctly predicting the bearing life is not only the key to ensure the normal operation of the transmission system, but also has an important impact on the structural size of the transmission system. In this paper, based on the standard ISO281:2007 < Rollingbearings-Dynamic load ratings and rating life >, the calculation method of extended life and correction coefficient of rolling bearing are studied, and the main factors affecting bearing life are analyzed in detail. 4. The finite element model of single arm planet frame is established, the influence of structural parameters on the strength and stiffness of single arm planet frame is analyzed, and the general distribution law of strength and stiffness of single arm planet frame along axial and radial direction is given. The stress and deformation of circular structure and triangular structure of single-arm planet frame are compared and analyzed. 5. According to the finite element model of dual-arm planet frame, the influence of structural parameters such as connection plate thickness and input side plate thickness on the strength and stiffness of dual-arm planet frame is analyzed. The strength, stiffness and mass of single and dual-arm planet frames of the same specification are compared and analyzed. 6. The box assembly model of multi-stage planet gearbox is constructed. Based on SolidWorks Simulation, the dynamic and static characteristics of the box, such as stress, deformation, mode and so on, are studied, which provides the basis for the lightweight design of the box.
【学位授予单位】：机械科学研究总院
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH132.41
【参考文献】
相关期刊论文 前10条
1 王明远;周思柱;;基于ANSYS的辊压机用行星减速器行星架应力分析[J];机电设备;2008年03期
2 董进朝;刘忠明;;风电齿轮箱轴承寿命计算方法研究[J];机械传动;2007年05期
3 李政;;奥托汽车变速箱箱体有限元模态分析[J];机械传动;2008年04期
4 陈毅;侯力;马朝玲;蒋苏民;;风力发电机齿轮箱体有限元分析[J];机械传动;2009年04期
5 袁齐;王勇;;行星齿轮传动单侧板转臂的有限元分析[J];机械传动;2010年03期
6 张志宏;刘忠明;张和平;阳培;;大型风电齿轮箱行星架结构分析及优化[J];机械设计;2008年09期
7 杨成云,林腾蛟,李润方,杭华江;中心传动齿轮箱体固有特性研究[J];机械设计与制造工程;2002年04期
8 朱亮亮;;滚动轴承寿命计算浅析[J];科技信息;2010年03期
9 陈器;刘珍来;周勇;;盾构机行星减速器行星架仿真分析及优化[J];矿山机械;2010年12期
10 卢舟燕;赵治军;李柳;;辊压机用行星减速器行星架有限元分析[J];煤矿机械;2009年12期
相关硕士学位论文 前5条
1 陈营利;增速齿轮箱体有限元分析及其结构优化[D];哈尔滨工程大学;2009年
2 李晓燕;兆瓦级风力机偏航控制系统设计研究[D];上海交通大学;2007年
3 曹野;兆瓦级风力发电机组电动变桨距控制策略的研究[D];沈阳工业大学;2010年
4 李治琴;直驱永磁同步风力发电机变桨控制仿真研究[D];西南大学;2010年
5 荀建敏;风电机变桨减速机受力分析与优化设计[D];大连交通大学;2010年
本文编号：2476986
本文链接：https://www.wllwen.com/kejilunwen/jixiegongcheng/2476986.html
