Axial Deformation of Ball Screw Considering Contact Angle

Lan Liu; Zhao Xia He; Xiao Cai Zhang

doi:10.4028/www.scientific.net/AMM.300-301.785

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 300-301Axial Deformation of Ball Screw Considering...

Axial Deformation of Ball Screw Considering Contact Angle

Abstract:

A mathematic model of ball screw was constructed which was based on the elastic contact deformation theory. The helix angle was considered and the formula of axial elastic deformation was deduced in this study. Furthermore, a finite element model of ball screw was established and its elastic deformation results were also acquired. And the effect of contact angle on axial elastic deformation was analyzed by theoretic method and FEA. The study shows that the axial elastic deformation of ball screw changes with the contact angle. The deformation will decrease by the contact angle increasing, and the positional accuracy of the ball screw is improved.

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Periodical:

Applied Mechanics and Materials (Volumes 300-301)

Pages:

785-788

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.300-301.785

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Online since:

February 2013

Authors:

Lan Liu, Zhao Xia He, Xiao Cai Zhang

Keywords:

Ball Screw, Contact Angle (CA), Elastic Deformation, Finite Element Analysis (FEA)

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