齿面成形方法对鼓形齿联轴器齿形及其接触性能影响机制  

Influence mechanism of tooth surface forming methods on the tooth profile and contact performance of crown gear coupling

作　　者：关亚彬 张梦涵 冯和生 陈继刚[1] 刘超 GUAN Yabin;ZHANG Menghan;FENG Hesheng;CHEN Jigang;LIU Chao(School of Mechanical Engineering,Yanshan University,Qinhuangdao,Hebei 066099,P.R.China;School of Mechanical and Precision Instrument Engineering,Xi’an University of Technology,Xi’an 710048,P.R.China)

机构地区：[1]燕山大学机械工程学院,河北秦皇岛066099 [2]西安理工大学机械与精密仪器工程学院,西安710048

出　　处：《重庆大学学报》2025年第1期21-32,共12页Journal of Chongqing University

基　　金：国家自然科学基金资助项目(52205070,52005402)。

摘　　要：鼓形齿轮齿面成形方法主要有2种:成形方法Ⅰ为滚刀绕位移圆圆心作圆弧运动展成鼓形齿面,成形方法Ⅱ为滚刀绕位移圆圆心作圆弧运动展成鼓形齿面。以上2种成形方法生成的齿形差异及影响机制尚不清楚。因此,基于齿面加工仿真,推导了2种成形方法的齿面模型。采用啮合原理和有限元,建立了几何和承载接触分析模型。对比了2种成形方法的齿形、几何及承载接触特性。结果表明:在位移圆半径相等时,随着位移圆半径的增大,成形方法Ⅰ与Ⅱ的齿形偏差逐渐减小,最大偏差251μm;成形方法Ⅰ比Ⅱ的齿间载荷分配更加不均匀,最大载荷比最小载荷多702.8%、451.2%;在鼓形量相等下,成形方法Ⅱ的位移圆半径须大于Ⅰ,两者差200 mm,成形方法Ⅰ与Ⅱ的齿间载荷分配接近。Crown gear couplings are primarily manufactured using two tooth surface forming methods.In Forming Method I,the hob centre makes circular motion around the displacement circle center,while in Forming Method II,the gear shaper centre follows the same motion.However,the differences in tooth profiles and the mechanisms influencing their contact performance between these two methods remain unclear.To address this,simulations of the tooth surface machining processes for both forming methods were conducted,and the resulting hub tooth surfaces were modeled.Geometric tooth contact analysis and loaded tooth contact analysis models were established using meshing theory and the finite element method.Comparative analyses of tooth profiles,unloaded,and loaded contact characteristics were performed.Results show that,under identical displacement circle radii,the tooth profile deviations between the two forming methods gradually decreases as the radius increases,with a maximum deviation of 251μm.Moreover,load sharing among teeth is notably less uniform in Forming Method I than in Forming Method II,with maximum loads exceeding minimum loads by 702.8%and 451.2%,respectively.For equal crowning amounts,Forming Method II requires a larger displacement circle radius than Method I,with a difference of 200 mm.Despite this,the load-sharing performance of both methods becomes comparable under these conditions.

关 键 词：鼓形齿联轴器 成形方法 齿形分析 几何接触 承载接触 

分 类 号：TH132[机械工程—机械制造及自动化]