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NGW型行星齿轮减速机构设计自动化系统研究
Research on Automation Design System of NGW Planetary Gear Reducing Mechanism
【作者】 伍琼仙；
【导师】 阎开印；
【作者基本信息】 西南交通大学 ， 机械制造及其自动化， 2011， 硕士
【摘要】 行星齿轮传动具有传动比范围大、结构紧凑、体积和质量小、效率普遍较高、噪音低以及运转平稳等优点,被广泛应用于起重、矿山、工程机械、船舶、航空、以及国防工业等部门作为减速、变速或增速齿轮传动装置。但其设计计算繁琐,类型系列较多,为了提高设计效率,减少设计失误,满足CAD/CAE/CAM集成的需要,对行星传动装置进行模块化、系列化、参数化设计的研究就具有重要的现实意义。采用面向对象的开发工具VisualBasic6.0对三维软件SolidWorks进行二次开发,借助关系型数据库管理软件Microsoft Access对设计参数、设计结果、模型参数进行数据管理,将NGW型行星减速机构设计计算及强度校核、关键零部件系列化、参数化建模集成系统,并做成与SolidWorks集成的插件形式。主要完成了以下工作：1、在对NGW型渐开线行星齿轮传动的设计理论进行研究的基础上,采用VisualBasic6.0和Microsoft Access数据库为开发工具,实现NGW型渐开线行星齿轮减速机构设计计算、强度校核和结构参数设计程序化；通过用户交互的设计流程,输入功率、转速、总传动比、预计寿命、传动效率等初始参数,系统便可得出推荐的传动级数、传动比分配、齿数分配、齿轮几何参数计算及强度校核结果、以及零件的结构参数等。2、对NGW型行星减速机构的关键零部件参数化建模方法进行研究,利用三维设计软件SolidWorks强大的参数化建模功能和其提供的大量二次开发接口函数,实现了基于特征的关键零部件三维模型的参数化建模。通过尺寸驱动参数化方法、或者尺寸驱动与程序驱动组合的参数化方法,实现只需改变零件主要参数即可完成模型尺寸的更新,生成设计人员所设计的新三维模型；生成行星减速机构快速且定位准确的装配部件参数化模型,并进行运动仿真和干涉检查,及时反馈设计结果的优劣情况,为改进设计结果提供参考意见。3、采用DLL(Dynamic Link Libarary)的开发模式对SolidWorks进行二次开发,将行星减速机构设计自动化系统做成SolidWorks的插件模式,实现了系统与SolidWorks的无缝集成,解决设计计算结果和三维建模数据相互脱离的问题。建立的NGW型行星齿轮减速机构设计自动化系统能够快速设计出产品,减少重复繁琐的计算和建模工作,显著提高了设计效率和设计可靠性,大大缩短了设计周期,也可为其他系列化产品的开发提供参考。
【Abstract】 Planetary gear transmission has several advantages, such as large scope of transmission ratio, compact structure, small volume and quality, generally high efficiency, low noise and stable operation, etc. It was widely used in lifting, mining, construction machinery, shipbuilding, aerospace and defense industry sector as the deceleration, speed change or speed-up gear transmission. But there have many types of planetary gear transmission, and the design calculations are complicated, so in order to improve the design efficiency, reduce design errors, and meet the needs of the CAD/CAE/CAM integrated, it have important practical significance to do the researches on modulation design, seriation design, parametric design studies for planetary transmission.The secondary development of three-dimensional software SolidWorks by using VisualBasic6.0 which is an object-oriented developing tool, with the combination of database of Microsoft Access 2003 RDBMS on the storage and management of design parameters, design results, the model parameters. Combine the calculating method of design, the checking of contact strength, and the parametric modeling of series key components of NGW planetary reducer to be a system, make integration with the SolidWorks as plug-in unit. The main research work is as follows:1.Study the design theory of NGW type involute planetary gear transmission, achieve rountinization of design calculations, strength checking and structural parameters design of NGW type planetary gear reducing mechanism based on Microsoft Access 2003 database and VisualBasic6.0 as development tool; Through user interaction design process, system offer recommended transmission series, transmission ratio distribution, distribution of teeth, gear geometry and strength check calculation results, and parts of the structure parameters, after input the initial parameters such as power, speed, the total transmission ratio, life expectancy, transmission efficiency etc.2. Study the parametrization modeling method of NGW type planetary gear reducing mechanism’s essential spare part, achieve the feature-based parametric modeling of key components by using application programming interface (API) of the computer-aided design (CAD) software SolidWorks, which provides parametric modeling function. Model the new three 3D model which the production designers design by only changing the components main parameter to renew the model size, through parameter driving parametric method, or parameter driving and program driving combination’s parametric method; Modeling position accurate assembly parts parametric model of planetary gear reducing mechanism, timely feedback strengths and weaknesses of the design results, provide a reference advice for improving the design results.3. Redeveloping Dynamic Link Libarary (DLL) file of SolidWorks, Makes planetary gear reducing mechanism automated design system as SolidWorks plug-in unit. The DLL realizes the seamless integration with SolidWorks, which can solve the problem of design calculations and three-dimensional modeling data from mutual.NGW planetary gear reducing mechanism automated design system enables users to quickly interactive design environment, reducing of duplication of tedious calculations and modeling, significantly improves design efficiency and reliability, significantly reducing design cycle.