机车牵引齿轮修形技术及啮合性能研究  

Study on Modification Technology and Meshing Performance of Locomotive Traction Gear

作　　者：施晓春[1] 张日明 何卫东[1] Shi Xiaochun;Zhang Riming;He Weidong(School of Mechanical Engineering, Dalin Jiaotong University, Dalian 116052, China)

机构地区：[1]大连交通大学机械工程学院,辽宁大连116052

出　　处：《机械传动》2017年第11期82-86,177,共6页Journal of Mechanical Transmission

基　　金：辽宁重大装备制造协同创新中心资助项目

摘　　要：全面考虑箱体、轴承、轴的变形及装配间隙等影响因素,采用有限元法对机车牵引齿轮接触状态、载荷分布趋势进行分析。依据啮合过程中出现的偏载现象,采用遗传算法优化获得最佳齿向圆弧修形曲线;再通过对修形前、后机车齿轮正、反转两种啮合状态的对比分析,得知修形后轮齿齿宽方向上载荷分布更加均匀,偏载造成的应力集中现象得到明显改善,接触应力、弯曲应力最大值均减小,优化得到的修形曲线效果较好。Considering the factors such as the deformation of the box body,the bearing and the shaft and the assembling clearance,the finite element method is used to analyze the contact state and load distribution of the traction gear. According to partial load in the meshing process,the optimum gear profile modification curve is optimized by using genetic algorithm. Through the comparison and analysis of the two meshing states of the forward and reversal of the locomotive gear,it can be found the load distribution on the teeth is more uniform,the stress concentration phenomenon caused by partial load is improved,and the maximum value of contact stress and bending stress significantly is reduced. The result shows the modification curve has a good effect.

关 键 词：斜齿轮 齿向修形 优化计算 

分 类 号：U260.33[机械工程—车辆工程]