摘要
在载荷作用下,齿轮传动系统中支承轴的弯扭耦合变形会使齿轮副啮合齿面之间产生啮合错位,进而影响齿轮副沿齿宽方向的齿面接触应力分布。基于ANSYS有限元分析软件,建立了考虑轴柔性的二级齿轮传动系统的接触有限元模型,分别考察了实心式和腹板式轮体结构下各级齿轮副沿齿宽方向的齿面接触应力分布。结果表明:对于实心式和腹板式齿轮,各级齿轮副齿面接触应力均存在明显的偏载现象。而将腹板式齿轮的腹板进行偏置布置时,各级齿轮副沿齿宽方向的齿面接触应力分布均发生明显变化。通过对齿轮腹板进行合理的偏置设计,可以有效改善各级齿轮副齿面接触应力沿齿宽方向的偏载现象。
Under loading condition,the bending and torsional deformation of the supporting shafts will cause the mesh misalignment between the mating tooth surfaces of gear pairs,and then affect the contact stress distribution of the tooth surface along the gear width.Based on the ANSYS software,the contact finite element model for a two-stage gear transmission system by considering the shaft flexibility was established,and the contact stress distribution along gear width under the solid and webtype condition are investigated respectively.The results show that for solid gear and web gear,the contact stress of tooth surface of each gear pair is obviously biased.When the web of the web gear is offset,the contact stress distribution along the tooth width of each gear pair changes obviously.Through the rational offset design of gear web,the phenomenon of offset load along the width direction of gear pair tooth surface contact stress can be effectively improved.
作者
王硕
袁冰
徐文博
韩冰
马国亮
WANG Shuo;YUAN Bing;XU Wenbo;HAN Bing;MA Guoliang(School of Mechatronic Engineering,Xi´an Technological University,Xi´an 710021,China;Zhengzhou Research Institute of Mechanical Engineering Co.,Ltd.,Zhengzhou 450052,China;Shaanxi Engineering Laboratory for Transmissions and Controls,Northwestern Polytechnical University,Xi´an 710072,China)
出处
《机械科学与技术》
北大核心
2025年第12期2099-2105,共7页
Mechanical Science and Technology for Aerospace Engineering
基金
国家自然科学基金项目(52005382)
教育部春晖计划合作科研项目(HZKY20220517)。
关键词
接触应力
轴柔性
接触有限元模型
齿轮腹板偏置设计
contact stress
shaft flexibility
contact finite element model
gear web offset design
