Meshing characteristics analysis of planetary roller screw mechanism with misalignment

Wei Cai, Xiaojun Fu, Shangjun Ma, Geng Liu

Research output: Contribution to journalArticlepeer-review

Abstract

In this study, a meshing model for planetary roller screw mechanism (PRSM) with misalignment is established, considering misalignment angle and misalignment azimuth angle. By incorporating these misalignment variates into space coordinate transformation matrices, the meshing equations of screw-roller and nut-roller interfaces are derived to explore the meshing characteristics of PRSM with misalignment. Furtherly, the maximum misalignment angle of PRSM is obtained by the bisection method to research the limit position in misalignment. The effectiveness of the misalignment meshing model is verified by comparing with a previously published model. In addition, a typical PRSM is taken as an example to investigate the effect of misalignment angle and misalignment azimuth angle on meshing positions and axial clearances of PRSM. The results demonstrate that the meshing characteristics of PRSM with misalignment have an enormous difference from that of PRSM in an ideal state.

Original languageEnglish
Pages (from-to)3794-3806
Number of pages13
JournalProceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science
Volume238
Issue number9
DOIs
StatePublished - May 2024

Keywords

  • Planetary roller screw mechanism
  • maximum misalignment angle
  • meshing characteristics
  • misalignment angle
  • misalignment azimuth angle

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