盾构机双驱动大功率行星减速器的特性分析
发布时间：2019-05-27 03:36
【摘要】：盾构机是集机、电、液、控于一体,专门用于开挖地下隧道工程的技术密集型重大工程装备。大功率行星减速器作为盾构机的关键部件之一,其性能好坏直接影响盾构机的工作性能。用于盾构机的减速装置工作环境恶劣,要经受重载荷和高冲击,并且必须具备大功率、大扭矩输出等功能。其设计制造加工要求高,世界上只有日本,德国等少数国家的企业能生产,且成本很高。因此,研究盾构机大功率齿轮传动系统,对提高我国盾构机减速器的自主创新能力,促进城市化建设进程,具有重要意义。 本文阐述了盾构机的工作原理,分析了盾构机及其减速装置国内外的发展和现状。在高度总结概括盾构机变速装置工作要求的基础上,设计出一种新型的盾构机双驱动大功率行星齿轮减速器。该减速器由一个差动机构和一个两级封闭机构复合而成的多流传动系统,具有传动比大、承载能力强等优点,并且能以一个减速器取代传统系统中的多套变速装置。主要研究内容如下: 根据机械原理及齿轮啮合原理,采用行列式法建立了系统联系图,推导了减速器的运动学方程;分析了双驱动减速器的传动特性,得到了传动比、内部转速及内部扭矩的关系和变化规律。 应用功率键合图理论及机械系统动力学原理,建立了差动机构、封闭机构及整体的键合图动力学模型,推导了减速器的状态方程,模拟仿真了减速器的动态特性。分析了不同输入条件下系统的内部各变量的变化规律及影响因素。根据齿轮啮合原理,应用3-D的设计方法,建立了盾构机双驱动行星减速器各零部件的三维实体模型,按照各构件的实际连接关系,并进行了虚拟装配。 设计虚拟实验,建立了减速器的运行机构,进行运动学仿真,验证了传动比的正确性,直观的反映了各构件的运动状况;运用有限元分析方法,从结构静力学、非线性接触以及模态等三个方面,验证了盾构机双驱动行星减速器的结构合理性,并为进一步的研究奠定了基础。
[Abstract]:Shield machine is a technology-intensive major engineering equipment which integrates machine, electricity, liquid and control, which is specially used for underground tunnel excavation. As one of the key components of shield machine, the performance of high power planet reducer directly affects the working performance of shield machine. The deceleration device used in shield machine has bad working environment, must withstand heavy load and high impact, and must have the functions of high power and high torque output. Its design, manufacturing and processing requirements are high, only Japan, Germany and other countries in the world can produce, and the cost is very high. Therefore, it is of great significance to study the high power gear transmission system of shield machine in order to improve the independent innovation ability of shield machine reducer and promote the process of urbanization construction in our country. In this paper, the working principle of shield machine is described, and the development and present situation of shield machine and its deceleration device at home and abroad are analyzed. On the basis of summarizing the working requirements of shield machine variable speed device, a new type of double drive high power planet gear reducer for shield machine is designed. The reducer is composed of a differential mechanism and a two-stage closed mechanism, which has the advantages of large transmission ratio and strong bearing capacity, and can replace multiple sets of variable speed devices in the traditional system with a reducer. The main research contents are as follows: according to the mechanical principle and gear meshing principle, the system contact diagram is established by determinant method, and the kinematic equation of reducer is deduced. The transmission characteristics of double drive reducer are analyzed, and the relationship and variation law of transmission ratio, internal speed and internal torque are obtained. Based on the theory of power bond graph and the principle of mechanical system dynamics, the dynamic models of differential mechanism, closed mechanism and the whole bond graph are established, the equation of state of the reducer is derived, and the dynamic characteristics of the reducer are simulated. The variation law and influencing factors of the internal variables of the system under different input conditions are analyzed. According to the principle of gear meshing, the three-dimensional solid model of each component of double drive planet reducer of shield machine is established by using the design method of 3 D. According to the actual connection relationship of each component, the virtual assembly is carried out. The virtual experiment is designed, the running mechanism of the reducer is established, the kinematic simulation is carried out, the correctness of the transmission ratio is verified, and the motion condition of each component is reflected intuitively. By using the finite element analysis method, the structural rationality of the double drive planet reducer of shield machine is verified from three aspects of structural statics, nonlinear contact and mode, which lays a foundation for further research.
【学位授予单位】：重庆大学
【学位级别】：硕士
【学位授予年份】：2011
【分类号】：U455.39;TH132.46
本文编号：2485878
[Abstract]:Shield machine is a technology-intensive major engineering equipment which integrates machine, electricity, liquid and control, which is specially used for underground tunnel excavation. As one of the key components of shield machine, the performance of high power planet reducer directly affects the working performance of shield machine. The deceleration device used in shield machine has bad working environment, must withstand heavy load and high impact, and must have the functions of high power and high torque output. Its design, manufacturing and processing requirements are high, only Japan, Germany and other countries in the world can produce, and the cost is very high. Therefore, it is of great significance to study the high power gear transmission system of shield machine in order to improve the independent innovation ability of shield machine reducer and promote the process of urbanization construction in our country. In this paper, the working principle of shield machine is described, and the development and present situation of shield machine and its deceleration device at home and abroad are analyzed. On the basis of summarizing the working requirements of shield machine variable speed device, a new type of double drive high power planet gear reducer for shield machine is designed. The reducer is composed of a differential mechanism and a two-stage closed mechanism, which has the advantages of large transmission ratio and strong bearing capacity, and can replace multiple sets of variable speed devices in the traditional system with a reducer. The main research contents are as follows: according to the mechanical principle and gear meshing principle, the system contact diagram is established by determinant method, and the kinematic equation of reducer is deduced. The transmission characteristics of double drive reducer are analyzed, and the relationship and variation law of transmission ratio, internal speed and internal torque are obtained. Based on the theory of power bond graph and the principle of mechanical system dynamics, the dynamic models of differential mechanism, closed mechanism and the whole bond graph are established, the equation of state of the reducer is derived, and the dynamic characteristics of the reducer are simulated. The variation law and influencing factors of the internal variables of the system under different input conditions are analyzed. According to the principle of gear meshing, the three-dimensional solid model of each component of double drive planet reducer of shield machine is established by using the design method of 3 D. According to the actual connection relationship of each component, the virtual assembly is carried out. The virtual experiment is designed, the running mechanism of the reducer is established, the kinematic simulation is carried out, the correctness of the transmission ratio is verified, and the motion condition of each component is reflected intuitively. By using the finite element analysis method, the structural rationality of the double drive planet reducer of shield machine is verified from three aspects of structural statics, nonlinear contact and mode, which lays a foundation for further research.
【学位授予单位】：重庆大学
【学位级别】：硕士
【学位授予年份】：2011
【分类号】：U455.39;TH132.46
【引证文献】
相关硕士学位论文 前5条
1 赵宇恒;伺服驱动减速器强度刚度及动态性能研究[D];大连交通大学;2017年
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3 贺子奇;海上作业绞车式主动升沉补偿系统设计与仿真[D];大连理工大学;2015年
4 臧含书;卧式加工中心进给系统动态特性分析及优化[D];大连理工大学;2014年
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