内齿行星齿轮减速器的优化设计

发布时间：2018-03-06 01:05

本文选题：内齿行星齿轮减速器　切入点：受力分析　出处：《陕西科技大学》2012年硕士论文　论文类型：学位论文

【摘要】：内齿行星齿轮传动是一种相对较为独特的齿轮传动方式，它具有结构紧凑、承载能力大、传动比大、传动效率高、体积小和运动平稳等优点。在这些优点的基础上，内齿行星齿轮减速器渐渐地被广泛应用到了国防、冶金、矿山、纺织、起重运输、轻工、化工、食品工业、仪表制造和建筑工程等各种领域当中，，逐步地替代了现有的多级圆柱齿轮减速器，蜗杆蜗轮减速器等类型的减速器，同时它也受到了广大学者们的日益关注和深入的研究。对于内齿行星齿轮传动，分析内、外齿轮啮合力大小的变化情况以及计算转臂轴和轴承上的受力情况，这是内齿行星齿轮减速器产品设计的重要问题之一。本文针对高速轴动力输入的不同情况，对内齿板进行了受力分析，并且得到了内、外齿轮啮合力大小的变化规律以及转臂轴和轴承的受力情况。内齿行星齿轮减速器的运动设计和结构设计也是本文的关键部分，对内齿行星齿轮传动的传动比进行了推导计算，列出了齿轮副参数计算的相关公式，对减速器的几个基本参数中心距、传动比、内外齿轮的齿数以及模数的确定进行了分析，另外也对行星轴承的选择，输出轴和输入轴的结构以及内齿板的几何尺寸进行了设计。本文以整体尺寸和重量最小为目标，充分考虑各种约束条件，采用先进的优化方法，对内齿行星减速器进行优化设计。通过目标函数的建立和选取合适的设计变量，以及约束条件的确定都是有多方面的因素问题要考虑的，几何参数，如尺寸、体积、齿廓干涉、装配条件等；运动学因素，主要是传动比；承载能力的因素，如齿面接触疲劳强度，齿根弯曲疲劳强度等。凭借MATLAB优化工具箱对内齿行星齿轮进行了优化设计，在满足约束条件的情况之下，优化后的内齿行星减速器和之前的相比较，其体积有明显的减少，这说明在MATALB优化工具箱的优化工具下，这种方法是可行的，对降低生产产品成本，提高制造厂家的经济效益等都有相当大的实际意义。最后，通过对内齿行星齿轮减速器CAD系统简单的开发，通过Pro/E软件强大的参数化三维建模功能，在参数化造型技术为基础上建立了零件库系统，通过对模板零件实行尺寸驱动，并且实现了自动生成零件，这样有助于实现内齿行星齿轮减速器设计的自动化、可视化及部分智能化。
[Abstract]:Inner tooth planetary gear transmission is a relatively unique gear transmission mode. It has the advantages of compact structure, large bearing capacity, large transmission ratio, high transmission efficiency, small volume and stable movement. The inner gear reducer has been widely used in many fields such as national defense, metallurgy, mining, textile, lifting transportation, light industry, chemical industry, food industry, instrument manufacture and construction engineering, etc. It has gradually replaced the existing multi-stage cylindrical gear reducer, worm gear reducer and other types of reducer. At the same time, it has been paid more and more attention and in-depth research by many scholars. For the inner tooth planetary gear transmission, the change of the meshing force of the inner and outer gears and the calculation of the force on the rotating arm shaft and bearing are analyzed. This is one of the important problems in the design of the inner gear reducer. In this paper, the internal gear plate is analyzed according to the different conditions of the high speed shaft dynamic input, and the inner gear plate is obtained. The changing law of the engagement force of the outer gear and the force condition of the arm shaft and bearing. The motion design and structure design of the inner planetary gear reducer are also the key parts of this paper. The transmission ratio of the inner tooth planetary gear transmission is deduced and calculated, and the relevant formulas for the calculation of the gear pair parameters are listed. Several basic parameters of the reducer, such as center distance, transmission ratio, tooth number and modulus of internal and external gears, are analyzed. In addition, the selection of planetary bearings, the structure of output shaft and input shaft and the geometric size of inner gear plate are also designed. This paper takes the minimum size and weight as the objective, fully considers all kinds of constraints, and adopts advanced optimization method to optimize the design of the inner gear planetary reducer. Through the establishment of the objective function and the selection of appropriate design variables, The determination of constraint conditions has many factors to be considered, such as size, volume, tooth profile interference, assembly condition, kinematics, transmission ratio, bearing capacity, etc. Such as tooth surface contact fatigue strength, tooth root bending fatigue strength and so on. With the help of MATLAB optimization toolbox, the inner tooth planetary gear is optimized and designed. Under the condition of satisfying the constraint conditions, the optimized inner tooth planetary reducer is compared with the previous one. The volume is obviously reduced, which shows that this method is feasible under the optimization tools of MATALB optimization toolbox, and has great practical significance to reduce the cost of production products and improve the economic benefits of manufacturers. Finally, through the simple development of the CAD system of the inner planetary gear reducer and the powerful parameterized 3D modeling function of the Pro/E software, the part library system is established on the basis of the parameterized modeling technology. Through the dimension drive of the template parts and the automatic generation of the parts, it is helpful to realize the automation, visualization and partial intelligence of the design of the inner planetary gear reducer.
【学位授予单位】：陕西科技大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH132.46

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