【作者】 谭莉莉；

【导师】 林腾蛟；

【作者基本信息】 重庆大学 ， 机械设计及理论， 2005， 硕士

【摘要】 鼓形齿联轴器是近30 年来为满足大倾角、变倾角、小尺寸和高可靠性等技术要求发展起来一种齿轮联轴器。具有补偿轴线间相对径向位移、轴向位移和角位移的能力,并且结构紧凑,传递运动准确、可靠,能有效地避免齿的尖角应力集中,具有较大的承载能力。本论文来源于戚墅堰机车车辆工艺研究所委托课题“齿轮联轴器内外齿有限元强度分析”。本课题研究的目的是通过对北京地铁联轴器齿轮副进行强度设计和校核,并且对其进行三维弹性接触有限元分析,得出鼓形齿联轴器齿轮副的弹性接触状况,为鼓形齿联轴器的设计及制造提供数据和理论支持。本文的主要研究内容有: ①对鼓形齿联轴器进行结构尺寸设计计算,应用I-DEAS 软件对鼓形齿联轴器进行三维实体造型。②以Visual Fortran作为工具,开发齿轮联轴器有限元弹性接触分析前处理程序,自动生成齿轮联轴器轮齿的计算模型及输入数据。③在鼓形齿联轴器无轴间倾角的情况下,应用自行开发的弹性接触有限元分析程序及I-DEAS 软件对啮合轮齿进行有限元接触分析;分析结果的后处理。④在鼓形齿联轴器有轴间倾角的情况下,应用I-DEAS 软件对啮合轮齿进行有限元接触分析,得到轮齿的位移场、应力场及齿面接触应力。更多还原

【Abstract】 Crown gear coupling is a kind of small-scale gear coupling developed in the resent 30 years, which can reliably work with inclination of axes. Crown gear coupling can compensate the radial and axial displacement and angular displacement between axes. Its structure is compact. It can transmit motion reliably and accurately and avoid the stress concentration in sharp corner of teeth. So this coupling’s carrying power is large. This paper comes from the project of “Finite Element Strength Analysis of the external and internal teeth of Gear Coupling”from Qisuyan Engine and Vehicle Technics Institute. The aim of the subject is to design and check the strength of the gears of crown gear coupling from the Beijing subway and to analyse the teeth by means of 3D FE elastic contact method. The result can numerically and theoretical support the design and manufacture of crown gear coupling. The main work of this paper includes: ①　The calculation of the structure parameters and 3D modeling in I-DEAS of the crown gear coupling are carried on. ②　The pro-processing program for FE elastic contact analysis of gear coupling is developed through Visual Fortran. The program can generate the model for calculation and input data. ③　When the inclination of axes does not exist, the FE contact analysis of the meshing gears is carried out by the means both of the FE elastic contact analysis program developed by our own lab and of the I-DEAS software. The result is post-processed. ④　When the inclination of axes exists, the FE contact analysis of the meshing gears is carried out through the I-DEAS software to get the displacement field, stress field and contact stress of tooth faces.更多还原