轴间差速器锥齿轮齿隙控制与疲劳寿命实验  

Backlash Control and the Fatigue Life Bench Test of Bevel Gears from Inter axle Differential

作　　者：赵龙 刘虎 张凌霄 王浩 Zhao Long;Liu Hu;Zhang Lingxiao;Wang Hao(Training Base,Army Engineering University of PLA,Xuzhou 221004,China)

机构地区：[1]中国人民解放军陆军工程大学训练基地,江苏徐州221004

出　　处：《机械传动》2023年第7期35-41,共7页Journal of Mechanical Transmission

摘　　要：锥齿轮作为轴间差速器的关键核心零件,其可靠性直接影响着驱动桥之间的差速功能和传动能力。研究从齿隙控制角度改善锥齿轮疲劳寿命,解决了实际使用过程中锥齿轮齿隙选取盲目的问题。采用模块化设计思想,建立了齿隙控制尺寸链,提出在输入轴上增加台阶,精确控制锥齿轮齿隙的方法;通过轴间差速器锥齿轮疲劳寿命台架试验装置,探索出轴间差速器锥齿轮总齿隙的最佳控制范围为[0.30,0.60]mm;得知齿隙变化对锥齿轮齿面接触与齿根弯曲疲劳寿命影响明显,而合理的齿隙控制可使齿面接触疲劳寿命提升29%。研究为提高轴间差速器锥齿轮的疲劳寿命提供了理论和实验依据。The bevel gears are the core components of inter-axle differential.The reliability of the bevel gears will affect the differential function and transmission capacity between different drive axles.Focusing on improving the fatigue life of bevel gears from the point of gears'backlash control,the issue that the selection of backlash for bevel gears are ambiguous during the actual application is resolved.Adopting a modular design con⁃cept,establish a backlash control dimension chain,and propose a method of adding steps on the input shaft to accurately control the backlash of bevel gears;through the fatigue life test rig of the interaxle differential bevel gear,the optimal control range for the total backlash of the interaxle differential bevel gear is explored to be[0.30,0.60]mm;it is known that the change in backlash has a significant impact on the contact fatigue life of bevel gears and the bending fatigue life of tooth roots,and reasonable backlash control can increase the contact fatigue life of tooth surfaces by 29%.The research provides theoretical and experimental basis for improving the fatigue life of bevel gears in the inter axle differential.

关 键 词：轴间差速器 锥齿轮 齿隙控制 疲劳寿命 台架试验 

分 类 号：U467[机械工程—车辆工程]