Dynamic characteristics analysis of triangular damping groove in port plate of double compound axial piston pump

Zhiyuan Sun; Qingliang Zeng; Lirong Wan; Jinying Jiang

doi:10.1117/12.2625276

12 December 2021 Dynamic characteristics analysis of triangular damping groove in port plate of double compound axial piston pump

Zhiyuan Sun, Qingliang Zeng, Lirong Wan, Jinying Jiang

Author Affiliations +

Proceedings Volume 12127, International Conference on Intelligent Equipment and Special Robots (ICIESR 2021); 121270D (2021) https://doi.org/10.1117/12.2625276
Event: International Conference on Intelligent Equipment and Special Robots (ICIESR 2021), 2021, Qingdao, China

Abstract

Aiming at the mitigating effect of the damping groove structure of the port plate on the oil backflow and pressure overshoot in the working process of the axial piston pump, a dynamic model of the double compound axial piston pump is established based on the flow area model of the triangular damping groove, and the influence of the structural parameters of the inlet and outlet triangular groove of the port plate on the pressure and flow characteristics of the piston chamber is analyzed. The results show that, as the flow area between the inlet triangular groove and the piston chamber increases, the positive overshoot pressure and the dead volume residual pressure of the piston chamber in the closed pre-release pressure zone decrease, and the oil backflow from the piston chamber to the low pressure area decreases. The phase angle of oil backflow from the high pressure area to the piston chamber decreases with the increase of the length of the outlet triangular groove, and the peak value of oil backflow decreases. The peak value of oil backflow increases with the increase of the width and depth of the outlet triangular groove, while the phase angle of the peak decreases. Therefore, a reasonable configuration of the structural parameters of the triangular groove of the port plate can effectively alleviate the pressure overshoot and oil backflow, and this paper provides a basis for the optimization of the triangular groove.

Citation Download Citation

Zhiyuan Sun, Qingliang Zeng, Lirong Wan, and Jinying Jiang "Dynamic characteristics analysis of triangular damping groove in port plate of double compound axial piston pump", Proc. SPIE 12127, International Conference on Intelligent Equipment and Special Robots (ICIESR 2021), 121270D (12 December 2021); https://doi.org/10.1117/12.2625276

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KEYWORDS

Analytical research

Cavitation

Electronics engineering

Motion models

Numerical simulations

Fluctuations and noise

Fluid dynamics

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