【作者】 丁艳；

【导师】 江渡；

【作者基本信息】 大连交通大学 ， 机械设计及理论， 2007， 硕士

【摘要】 随着计算机技术和产品信息化的发展，计算机辅助设计(CAD)和参数化设计思想已经广泛应用于机械行业。产品参数化CAD系统的开发已经成为企业产品数字化、信息化的必然趋势。目前，减速器作为机械传动装置应用日益广泛，但其复杂的结构给设计工作带来了重复性和繁琐性。正基于此，本论文开发了基于Pro／E的渐开线行星齿轮减速器三维参数化CAD系统，通过该系统，用户可以在可视化平台上实现交互式设计，大大提高其设计效率和设计质量，缩短产品的开发周期，也方便了产品后续的运动仿真和有限元分析等，符合现代设计思想的发展要求。本论文在Windows2000操作系统上，利用Visual C++6.0集成开发环境和Pro／TOOLKIT二次开发工具，以Pro／E野火为CAD系统平台建立了NGW型行星减速器参数化CAD系统。根据实现的功能，该系统划分成用户输入数据、设计计算、零件三维参数化设计、设计评价、标准件库和设计文档管理六个模块。用户输入数据模块用于处理用户输入参数信息，存入初始数据文件中，供设计计算使用。设计计算模块具有齿轮传动优化设计和减速器结构设计功能，优化设计部分采用了降维穷举的优化方法。零件三维参数化设计模块可以使设计人员在产品设计阶段直观、方便的修改设计尺寸，大大节省了设计成本。设计评价模块对齿轮传动的刚度和强度进行了校核，保证了齿轮传动的设计质量。在产品装配阶段，可以调用该系统的标准件库模块实现减速器的装配，同时可以根据需要添加和删除标准件。设计文档模块实现了设计文档的生成，便于管理设计数据，也为日后的设计提供参考。更多还原

【Abstract】 With the development of computer technique and information industry, CAD technique and parametric technique are widely used in mechanical field. The development of parametric CAD system is the trend of digital and information producing in the enterprise. At present, gear reducer is a mechanical driving device which is extensively applied in mechanism. But designing reducer is a perplexing and iterative process because of its complicated structure. The paper expounds the techniques of building a 3D parametric CAD system of involute planetary reducer based on Pro/E. Through this system, users can interactively design all parts of the reducer on the visual circumstance. This system not only improves designing quality and efficiency, but also be of value to movement simulation and finite element analysis. So it satisfies the development of modern designing.In the system, the operating platform is Windows2000. VC++6.0 is the integrated development environment. Pro/TOOLKIT is the development tool. Pro/ENGINEER WILDFIRE is parametric CAD platform. The system can be divided into inputting-parameter module, designing and computing module, parametric designing module, designing valuation module, standard part library module and designing document management module. Parameters which are input by users can be saved to a primary-data file in the inputting-parameter module. Designing and computing module includes optimum design of gear driver and structure design of reducer. The optimum method is dimensionality reduction and exhaustivity in this module. Users can conveniently change dimensions of products in the designing process, which reduces the designing cost. The system can check stiffness and hardness of the gear driver in designing valuation module, which will guarantee gear reliability. Designers can assemble all parts of reducer by calling part library module. At the meantime they can add or delete standard parts in this module. Designing documents would be generated in designing document module, which is convenient to manage data and offer references for further designing.更多还原