Abstract
Pipe joints are important connecting devices and weak links in high-pressure hydraulic systems, and their rational design is of great significance for ensuring the safety of hydraulic transmission systems. In accordance with the requirements of high-pressure hydraulic oil systems, a 70 MPa high-pressure oil pipe structure was designed, and strength and sealing analyses were conducted by using the finite element module in SolidWorks simulation. The results showed that the stress distribution in various parts of the pipe joint was relatively uniform and achieved an elastic-plastic sealing effect. The radius of curvature on the outer wall of the pipe is a key factor in joint design, and the connectivity performance of the joint can be adjusted by the axial displacement of the connector. The sealing tests demonstrated that the pipe design meets the structural strength and sealing performance requirements for use at 70 MPa. The research findings provide references for optimizing the design, manufacturing, and installation of pipe joints in high-pressure hydraulic systems.
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