吉林大学学报(工学版) ›› 2011, Vol. 41 ›› Issue (增刊1): 115-120.

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Analysis of hollow camshaft assembled process on expanding tube connection by pushing through a ball

QIAO Jian1, KOU Shu-qing2, KONG Qiao-ling2, QIAO Jian-yi3   

  1. 1. Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China;
    2. Roll Forging Research Institute, Jilin University, Changchun130022, China;
    3. College of Materials and Engineering Sciences, Changchun University of Technology, Changchun 130022, China
  • Received:2010-08-28 Online:2011-09-01 Published:2011-09-01

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Abstract:

The connection mechanism and advantage of hollow assembled camshaft on expanding tube connection by pushing through a ball was introduced.The numerical simulation was used to analyze the equivalent von Mises stress distribution and residual contact pressure of the shaft and the cam lobes in process of expanding tube connection.The radial displacement and hollow shaft reduction of assembled camshaft on expanding tube connection by pushing through a ball were achieved.The results show the maximum equivalent von Mises stress is located internal surface of shaft.The maximum residual contact pressure between the shaft and the cam lobes appears around both ends of cam hole,and it is the maximum radial displacement.The connection part of hollow shaft is the minimum radial displacement,and also it is the maximum wall thickness reduction.According to the expanding tube connection experiments by pushing through a ball,the experimental results are in agreement with the numerical simulation results.It illustrates that the numerical simulation results can guide perfectly the manufacture of assembled camshaft and design of assembled equipments on expanding tube connection by pushing through a ball.

Key words: mechanical design, hollow assembled camshaft, expanding tube connection by pushing through a ball, assembled process, numerical simulation

CLC Number: 

  • U464.134


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