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A New Study on the Parameter Relationships of Planetary Roller Screws

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  • Shangjun Ma
  • Geng Liu
  • Ruiting Tong
  • Xiaocai Zhang

Abstract

As a more powerful transmission device, planetary roller screws (PRSs) recently have received more attention, compared to conventional ball screws. However, due to the complicated and unclear relationships among the PRS components’ parameters, it is difficult to design high-quality PRSs. To facilitate the PRS design, a new study on the parameter relationships of PRS is conducted in this work. New models of the axial stiffness and the frictional moment of PRS are developed, and the relationships of the axial stiffness and the frictional moment in terms of contact angle, helical angle, and tooth number of the roller thread are investigated. This study could contribute to the research of PRS to improve its transmission performance, especially to increase its positioning accuracy.

Suggested Citation

  • Shangjun Ma & Geng Liu & Ruiting Tong & Xiaocai Zhang, 2012. "A New Study on the Parameter Relationships of Planetary Roller Screws," Mathematical Problems in Engineering, Hindawi, vol. 2012, pages 1-29, November.
    • Handle: RePEc:hin:jnlmpe:340437
    DOI: 10.1155/2012/340437
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