渐开线直齿锥齿轮等距修形正交优化设计  

Orthogonal Optimization Design of Isometric Modification of Involute Spur Bevel Gear

作　　者：张方友[1] 崔焕勇[1] 

机构地区：[1]济南大学机械工程学院,山东济南250022

出　　处：《机械传动》2013年第2期36-40,共5页Journal of Mechanical Transmission

基　　金：山东省自然科学基金(Y2008F21)

摘　　要：针对直齿锥齿轮在工作中的啮合干涉冲击和"端啮"现象,提出正交设计的思想对齿轮进行等距修形的优化研究,并介绍等距修形原理及工艺。为优化修形效果,找出等距修形量、修形高度及修形位置这3个最影响修形效果的要素,对各个要素各选取3个水平进行正交试验设计,并通过SolidWorks建立精确的齿轮三维实体模型,利用ANSYS/LS-DYNA进行齿轮动态接触有限元分析,确定各个因素对等距修形效果影响的重要程度,进而获得最优等距修形参数。通过仿真分析,说明优化后的等距修形不仅能有效降低齿轮啮合干涉、冲击及振动,还可以消除"边缘效应",均化齿向分布载荷,提高了齿轮的承载能力,具有齿廓和齿向同时修形的综合修形效果,对于完善直齿锥齿轮等距修形理论具有参考价值。For the phenomenon of meshing interference, impact and end contact of spur bevel gear in working, the idea of orthogonal design for isometric modification is put forward, the principle of isometric modification and its manu- facturing process is introduced. In order to optimize the effect of modification, the amount of isometric modification, modification height and the modification area of these three factors most affect the effect on modification are identified, three levels of each factor are selected for orthogonal experimental design, and then three - dimensional solid models of standard gears and modification gears are established by SolidWorks, based on gear dynamic FEA simulation analysis with ANSYS/LS - DYNA, the various factors affect the degree of importance on the effect of isometric modification is i- dentified, and then the optimal isometric modification parameters are obtained. Through the simulation analysis, the re- suits indicate that optimal isometric modification not only reduce meshing interference, impact and vibration effectively but also can avoid the edge effect, the load distribution is homogenized, and the beating capacity of gear pair is im- proved, it has the comprehensive effect of profile modification and longitudinal modification. The conclusion can pro- vide some references for perfecting isometric modification theory of straight bevel gear.

关 键 词：直齿锥齿轮 等距修形 正交设计 有限元分析 

分 类 号：TH132.413[机械工程—机械制造及自动化]