【作者】 吕和生；

【导师】 陈兵奎；

【作者基本信息】 重庆大学 ， 机械设计与理论， 2002， 硕士

【摘要】 精密传动是一种重要的基础性零部件，在机器人、机床、仪器仪表等工业领域有着广泛的应用。随着信息和宇航科学技术的发展，特别是卫星通信、飞行目标跟踪与拦截、遥感与遥测、天文观察等天线系统的微小型化、快速化及自动化，对精密传动提出了更高的要求。因此，探索新的精密传动形式，研究新的精密传动理论具有十分重要的意义。课题来源于国家高技术发展研究计划项目“新型空间凸轮活齿精密传动及其应用研究”（课题编号：2001AA423190）。本文根据新型空间凸轮活齿精密传动的特点，研究了啮合传动理论，并进行了相应的数值计算。论文的主要工作包括：1、根据啮合点和钢球中心轨迹均在同一圆柱面上的特点，研究了给定端齿齿廓条件下求解凸轮齿廓的一般方法；论证了在给定端齿、齿差数和钢球直径相同的条件下，正负齿差啮合齿廓的唯一性；讨论了端齿为球面摆线时，凸轮齿廓的具体表达式，并研究了该齿廓的性质。2、分别运用拆分法，封闭行星机构的传动简图和结构简图推导出单级和双级的多种结构的传动比公式，并给出一齿差、二齿差球面摆线钢球传动机构减速比的简化计算公式。3、分析了封闭机构的封闭功率的大小和方向，提出了消除封闭功率的方法，并对传动装置结构进行了优化设计。4、根据凸轮的受力特点，分析了该传动机构的自锁特性。结合实例，讨论了端齿基本参数对凸轮的自锁性能的影响，并给出了分析结果。5、通过对凸轮啮合齿廓的分析，推导出一齿差时凸轮动平衡的计算公式，并提出了动平衡的方法。6、以Microsoft VC++ 6.0为编程工具，开发了一套关于球面摆线钢球传动数值分析软件。 7、在以上理论研究的基础上，完成样机的设计和试制。更多还原

【Abstract】 Precision transmission device is one kind of the key fundamental components, which are extensively applied to many industry fields including robot industry, machine industry, instrument industry etc. With the development of Information Technology and space navigation technology, especially the micro-miniaturization, speediness and automation of satellite communication, scouting the flying project, remote sensing and measuring and astronomic observation antenna system, more hard requirements are demanded on precision transmission. Therefore, it deserves great significance to research new type of precision transmission and study the new precision transmission theory.This Project originates from The National High-technology Development and Research named ’The Research and Application on New Spatial-Cycloid-Ball Gearing’, (No. 2001AA423190). According to the characteristics of spatial-cycloid-ball gearing, meshing transmission theory is studied and related numerical simulation is carried out. Major contents are as follows:1. As both the meshing point and ball’s center are on the given cylinder, a general method for developing the cam’s profile is studied. It is proved that the profile of Positive and Negative transmission is unique if the face gear, the difference between face tooth number and ball number and the diameter of ball are the same. The concrete expression of meshing cam on given spatial cycloid profile, and the characteristics of the profiles are discussed.2. The splitting method, enclosed planetary transmission sketch method and structure sketch method are used to deduce the transmission ratio formulas on several structures of the single-stage and double-stage spatial-cycloid-ball gearing respectively. Further more, the simplified calculating formulas on one-tooth-difference and two-tooth-difference spatial-cycloid-ball gearing are given.3. The size and direction of enclosed power current are analyzed for enclosed transmission structure. The method to eliminate enclosed power current is presented. Optimizing structural design is carried out.4. According to forces acted on cam, the self-lock character is analyzed. Examples are given to illustrate the self-lock character with different gear parameters. The results of analysis are presented.<WP=6>5. When it is one-tooth-minus, by analyzing the cam’s profile, the formula to calculate kinematics balance is derived. The method of kinematics balance is put forward.6. With Microsoft VC++ 6.0 programming language, the software about numerical simulation on spatial-cycloid-ball gearing is developed.7. Based on the theoretic research, the design and manufacture of model machines are accomplished.更多还原