基于加载接触分析的NW行星轮系齿轮修形研究

发布时间：2018-01-01 23:03

本文关键词：基于加载接触分析的NW行星轮系齿轮修形研究　出处：《中南大学》2011年硕士论文　论文类型：学位论文

【摘要】：矿用电动轮自卸车是一种集机、电、液于一体的高科技产品,是目前1000万吨级以上的大型露天矿场开采运输矿藏的关键装备。自卸车电动轮轮缘减速器是整车中故障多发部位,而国内研制的产品与国外同类产品相比还存在不小的差距；因此,对自卸车电动轮轮缘减速器进行研究,提高自卸车轮缘减速器的质量具有重要意义。轮缘减速器是一个典型的NW行星轮系,相对单对啮合轮齿而言行星轮系的工作指标不但要考虑各齿轮的齿面接触应力与齿根弯曲应力,还需要考虑行星轮系中各行星轮之间的载荷分配情况。所以本文在研究过程中主要使用上述三项指标来反映安装误差和齿轮修形对行星轮系啮合性能的影响。本文主要的研究内容如下： 1.从刀具齿面方程出发运用齿轮啮合与包络原理推导得到了包含过渡曲线的齿轮齿面方程,以此方程为基础结合修形原理得到了修形齿轮的齿面方程。将修形齿轮齿面方程写入到PRO/E中,运用PRO/E的扫描模块得到了修形齿轮参数化的精确几何模型。 2.研究在Abaqus中进行加载接触分析的关键技术,给出在Abaqus中进行加载接触分析的步骤。 3.研究不同齿轮的安装误差对轮边减速器在额定载荷工作时各齿轮的齿面接触应力、齿根弯曲应力及各行星轮之间载荷分配的影响,并针对每种安装误差给出了相应的修形方法。 4.基于轮系的加载分析结果设计了轮缘减速器修形参数,对比了新修形参数与原参数下轮系啮合性能,结果表明新设计修形参数下轮缘减速器的各项性能指标都得到了提升。
[Abstract]:The motor - driven wheel rim reducer is a key equipment for the mining and transportation of large - scale open - pit mine . It is a typical NW planetary gear train . 1 . The gear tooth surface equation containing the transition curve is derived from the gear tooth surface equation using the gear meshing and enveloping principle . The tooth surface equation of the modified gear is obtained based on this equation . The modified gear tooth surface equation is written into PRO / E , and the precise geometric model of the modification gear parameterization is obtained by using the scanning module of PRO / E . 2 . The key technology of loading contact analysis in Abaqus is studied , and the step of loading contact analysis in Abaqus is given . 3 . To study the influence of the installation error of different gears on the contact stress , root bending stress and load distribution between the gears in the rated load , and the corresponding trimming method is given for each installation error . 4 . Based on the results of wheel train loading and analysis , the modification parameters of the wheel flange reducer are designed , and the meshing performance of the new trimming parameter and the original parameter is compared , and the results show that the performance indexes of the wheel flange reducer under the new design modification parameter are improved .

【学位授予单位】：中南大学
【学位级别】：硕士
【学位授予年份】：2011
【分类号】：TH132.41

【引证文献】