doi:10.16186/j.cnki.1673-9787.2020020038

Received:2020/02/18

Revised:2020/05/07

Published: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