刘俊利, 焦豪奇, 关洪涛,等.横向滚花装配凸轮轴连接强度理论分析与实验研究[J].河南理工大学学报（自然科学版）,2021,40(2):98-104.

LIU J L, JIAO H Q, GUAN H T,et al.Theoretical analysis and experimental study on the connection strength oftransverse knurled assembled camshaft[J].Journal of Henan Polytechnic University(Natural Science) ,2021,40(2):98-104.

横向滚花装配凸轮轴连接强度理论分析与实验研究

刘俊利1, 焦豪奇1, 关洪涛2, 张青华1, 王华伟1, 闫艳燕1

1.河南理工大学 机械与动力工程学院，河南 焦作 454000;2.河南中轴控股集团股份有限公司，河南 焦作 454000

摘要:横向滚花凸轮轴各部件的加工工艺参数是影响凸轮轴装配性能的关键要素。为了推导横向滚花连接静扭矩计算公式及与之相关的材料和加工参数，对横向滚花装配凸轮与轴管连接状态和失效形式进行分析。以某汽车发动机凸轮轴为例，根据推导公式和生产经验确定各参数并建立模型，利用ABAQUS软件对凸轮轴装配过程和静态破坏扭矩进行仿真分析；在相同参数下实现凸轮轴的加工与装配，利用扭矩实验平台对装配完成的凸轮轴进行静态扭矩破坏实验。在相同的参数下，理论计算、仿真分析和破坏实验的破坏扭矩分别为406. 8，485.96 ， 446.9 N . m，3组数值相差不大。因此，可以采用理论计算结合仿真模拟的方式，确定最优工艺参数组合，并通过实验验证进行新产品设计，从而减少设计工作量和设计成本，缩短产品研发周期。

关键词:装配式凸轮轴;内燃机;连接强度;数值模拟;滚花连接

doi:10.16186/j.cnki.1673-9787.2020020038

基金项目:国家自然科学基金资助项目（51575163 ）

收稿日期:2020/02/18

修回日期:2020/05/07

出版日期:2021/03/15

Theoretical analysis and experimental study on the connection strength oftransverse knurled assembled camshaft

LIU Junli1, JIAO Haoqi1, GUAN Hongtao2, ZHANG Qinghua1, WANG Huawei1, YAN Yanyan1

1.School of Mechanical and Power Engineering， Henan Polytechnic University， Jiaozuo  454000 ， Henan， China;2.Henan Zhangzhou Holding Group Company Limited， Jiaozuo  454000 ， Henan， China

Abstract:The processing parameters of tran sverse knurled camshaft parts are key factors that affect the assembly performance of camshaft. the connection state and failure mode of the transverse knurled assembled cam and the shaft tube were analyzcd， In order to derive the calculation formula of the static torque of the transverse knurled connection and the related material and processing parameters. Taking the camshaft of an automobile engine as an example， the parameters were determined and the model was established according to the derivation formula and production experience. The assembly and static failure torque of the camshaft were simulated and analyzed by ABAQUS software. Under the same parameters， the camshaft was processed and assembled， and the static torque failure experiment was carried out by using the torque experiment platform. Under the same parameters， the failure torques of the theoretical calculation， simulation analysis and failure experiment were 406.8 ，485.96 and 446.9 N•m， respectively. Therefore， the optimal combination of process parameters could be determined by theoretical calculation and simulation， and the new product design could be verified by experiments， which greatly reduced the design workload and design cost， and shortened the product development cycle.

Key words:assembled camshaft;internal combustion engine;connection strength;analog simulation;knurled connection

 横向滚花装配凸轮轴连接强度理论分析与实验研究_刘俊利.pdf