Fatigue performance testing machine for piston rod detection

Abstract

The invention discloses a fatigue performance testing machine for piston rod detection, and relates to the technical field of piston rod detection, the fatigue performance testing machine comprises a bottom plate, the bottom plate is provided with a supporting mechanism for supporting two ends of a piston rod, a pressurizing mechanism is arranged above the middle part of the piston rod, and two ends of the supporting mechanism are respectively provided with two loading and unloading mechanisms. A storage mechanism is arranged on the other side of the piston rod on the supporting mechanism, the supporting mechanism is used for supporting the piston rod needing fatigue performance detection, the pressurizing mechanism is used for extruding the piston rod, the sliding plate is driven to stretch out of the interior of the driving cavity, and the piston rod placed on the supporting plate is fixed; the piston rod is prevented from rotating or sliding in the process of being extruded by the pressurizing mechanism, so that accidents are avoided, an additional power source is not needed in the whole fixing process, and more energy conservation and environmental protection are achieved.

Description

technical field [0001] The invention relates to the technical field of piston rod detection, in particular to a fatigue performance testing machine for piston rod detection. Background technique [0002] A hydraulic cylinder is a common hydraulic actuator, which can convert hydraulic energy into mechanical energy and perform reciprocating linear motion. Among them, the piston rod is one of the important parts of the hydraulic cylinder. The piston rod can be driven by hydraulic energy from the hydraulic cylinder. Stretch out or retract into the hydraulic cylinder to achieve reciprocating linear motion. The performance of the piston rod seriously affects whether the hydraulic cylinder can be used normally. Therefore, the performance detection of the piston rod is particularly important; [0003] The Chinese invention patent discloses a "device and method for testing the bending fatigue performance of hydraulic cylinder piston rod coating", the publication number is CN112595613...

AI Technical Summary

Problems solved by technology

[0005]1. When the load application system exerts force on the piston rod, it is easy to cause the piston rod to rotate or slide, which affects the normal detection of the fatigue performance of the piston rod;

[0006]2. When testing the fatigue performance of the piston rod, it is necessary to manually carry and fix the piston rod, which affects the efficiency of fatigue performance testing and wastes a lot of manpower ;

Images