Abstract
Improving the carrying ability of oil film between slipper and swash plate and reducing the partial abrasion of slipper are important to improve the service life and reliability of axial piston pump. In this paper, a numerical simulation model was developed for slipper/swash-plate friction pair based on the elastohydrodynamic theory. The dynamic micro-motion and pressure distribution of slipper were analyzed and it was pointed out that the tilt of slipper was the main reason for its partial abrasion. The simulations about the slippers with different slopes on the outer edge of the sealing belt showed that the partial abrasion could reduce the carrying ability and increase the leakage of the slipper/swash-plate pair. The proper slope on the inner edge helped to improve the carrying ability and reduce the leakage of slipper. The experimental tests were in accord with the simulation results to a great extent, showing that the simulation model had a high accuracy and could be applied to the design and optimization of slipper, and that the slipper with optimal inner slope provided an encouraging method to improve the efficiency and reliability of axial piston pump.
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Xu, B., Zhang, J. & Yang, H. Investigation on structural optimization of anti-overturning slipper of axial piston pump. Sci. China Technol. Sci. 55, 3010–3018 (2012). https://doi.org/10.1007/s11431-012-4955-x
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DOI: https://doi.org/10.1007/s11431-012-4955-x