Erosion Behavior and Surface Strengthening of Hydraulic Cylinders
DOI:
https://doi.org/10.54691/77exh939Keywords:
Drilling Pump Hydraulic Cylinder; Erosion Behavior; Surface Strengthening; Finite Element Simulation.Abstract
The hydraulic cylinder of the drilling pump is inevitably eroded by drilling fluid during operation, resulting in a decrease in the service life of the hydraulic cylinder. The surface strengthening of the inner chamber of the hydraulic cylinder can effectively improve its service life. However, the specific erosion behavior and surface strengthening effect evaluation of the hydraulic cylinder still need to be studied. To study the erosion behavior of gooseneck pipes in drilling fluid environment and evaluate the surface strengthening effect, this paper establishes a calculation model for the erosion behavior of drilling pump hydraulic cylinder and the surface strengthening of the inner cavity through finite element simulation. Studied the effect of outlet angle of drilling pump hydraulic cylinder on erosion rate and surface strengthening evaluation method. The calculation results show that the erosion rate is the highest near the outlet of the hydraulic cylinder. Reducing the outlet angle appropriately can effectively reduce the erosion rate, with a maximum reduction of 61.1%. After surface strengthening, the inner chamber of the hydraulic cylinder can effectively reduce the maximum deformation displacement, with a maximum reduction of 34.2%. I hope that the research in this article can provide technical support for improving the erosion law and surface strengthening of hydraulic cylinders.
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