MATEC Web Conf.
Volume 306, 2020The 6th International Conference on Mechatronics and Mechanical Engineering (ICMME 2019)
|Number of page(s)||4|
|Section||Mechanical Design and Manufacturing System|
|Published online||14 January 2020|
Experimental Research on Static Stiffness of the Planetary Roller Screw Mechanism
Shaanxi Engineering Laboratory for Transmissions and Controls, Northwestern Polytechnical University, Xi’an, 710072, China
* Corresponding author: firstname.lastname@example.org
This paper investigates the static stiffness characteristics of the planetary roller screw mechanism (PRSM). Firstly, an analytical model of elastic deformation in the PRSM considering contact deformation, combined deformation of screw shaft and thread deformations is established. Then, an accuracy coefficient is introduced to take into account the effect of machining error and assembly error on elastic deformation. Secondly, the stiffness tests of the PRSM are performed under different loads and nut positions. Lastly, the correctness of the analytical results is verified via the comparison with experimental results. The results show that the analytical results are in good agreement with the experimental results, and the stiffness variations under different loads and nut positions are obtained.
© The Authors, published by EDP Sciences 2020
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