CHC型少齿差减速器CAD系统研究与开发

发布时间：2018-02-26 07:07

本文关键词： 少齿差传动力学模型计算机辅助设计　出处：《武汉理工大学》2011年硕士论文　论文类型：学位论文

【摘要】：CHC型少齿差减速器是一种新型齿轮传动装置,具有传动比大、承载能力大、结构紧凑、质量轻、传动效率高等诸多特点,可广泛应用于石油、化工、起重运输、建筑机械、港口船舶等各大工业领域。 CHC型少齿差减速器设计计算目前尚无国家标准。由于缺乏可靠的设计计算依据,致使少齿差传动相关零件参数选择不合理,存在功率富裕、关键零件易失效等问题。另外,CHC型少齿差减速器为系列化产品,不同的产品规格在结构上相似度较高,其设计存在重复性。针对这些问题,本文的主要目的是建立合理的少齿差传动力学模型并进行相关的受力分析。在此基础上提出少齿差传动设计计算方法,合理运用现有的开发技术实现零件图和装配图自动绘制,开发CHC型少齿差减速器CAD系统,满足产品系列化的要求。在建立少齿差传动力学模型基础上,以少齿差传动及关键零件的设计为例阐述采用VB编程开发CAD设计计算模块,运用计算机辅助设计方法将各个设计过程程序化。运用VB自带的数据库的操作建立零件信息库并保存设计结果,利用VB的文本文件的读写操作生成详细的设计计算说明书。参数化绘图系统运用VB编程采用ActiveX技术从外部操作AutoCAD的系统对象实现参数化绘图,在利用开发的底层函数下,读取零件信息库中参数实行零件图的自动化绘制,并结合ObjectDBX技术和对象的扩展词典下实现装配图的自动绘制。通过零件信息库从设计计算部分到参数化绘图部分传递设计数据信息,按照文件执行顺序调用程序接口将各部分有效连接起来,最终实现设计计算和参数化绘图一体化。
[Abstract]:CHC reducer with small tooth difference is a new type gear transmission device, which has many characteristics, such as high transmission ratio, large bearing capacity, compact structure, light weight, high transmission efficiency and so on. It can be widely used in petroleum, chemical industry, hoisting and transportation, construction machinery, etc. Port ships and other major industrial areas. At present, there is no national standard for the design and calculation of CHC reducer with small tooth difference. Due to the lack of reliable basis for design and calculation, the parameter selection of the parts related to the transmission with less tooth difference is unreasonable and the power is rich. In addition, CHC type reducer with less teeth difference is a series of products. Different product specifications have high structural similarity, and their design is repeatable. The main purpose of this paper is to establish a reasonable dynamic model of small tooth difference transmission and to carry on the related force analysis. On this basis, the design and calculation method of small tooth difference transmission is put forward, and the automatic drawing of parts drawing and assembly drawing is realized by reasonable use of existing development technology. The CAD system of CHC type low tooth differential reducer is developed to meet the requirements of product serialization. On the basis of establishing the dynamic model of small tooth difference transmission, taking the design of small tooth difference transmission and key parts as an example, the design and calculation module of CAD is developed by VB programming. Each design process is programmed by using the method of computer aided design. The part information database is established by the operation of the database provided by VB and the design result is saved. The parameterized drawing system uses VB programming technology to realize parameterized drawing from the system object of external operation of AutoCAD by using VB programming technology, under the use of the bottom function of development, the parametric drawing system uses VB text file reading and writing operation to generate detailed design and calculation instructions, and the parametric drawing system realizes parameterized drawing by using VB programming technology. Read the parameters in the part information database and carry out the automatic drawing of the part drawing. The automatic drawing of assembly drawing is realized under the ObjectDBX technology and the extended dictionary of object, and the design data information is transferred from the design calculation part to the parametric drawing part through the part information base. According to the file execution order, the program interface is called to connect each part effectively, and finally the integration of design calculation and parameterized drawing is realized.
【学位授予单位】：武汉理工大学
【学位级别】：硕士
【学位授予年份】：2011
【分类号】：TH132.46;TP391.72

【引证文献】