Hydraulic cylinder durability test bed

Abstract

The invention provides a hydraulic cylinder durability test bed. The hydraulic cylinder durability test bed comprises a test loop and a control loop, wherein the test loop comprises a first hydraulic cylinder, a second hydraulic cylinder and an oil tank; a piston rod of the first hydraulic cylinder is connected with a piston rod of the second hydraulic cylinder through a quick coupling; two chambers of the first hydraulic cylinder are connected with two working oil ports of an M-type reversing valve through hydraulic control one-way valves and one-way throttle valves respectively; two chambers of the second hydraulic cylinder are connected with working oil ports of a second P-type reversing valve through one-way valves respectively; pressure oil ports of the M-type reversing valve and the second P-type reversing valve are connected with the working oil ports of a first P-type reversing valve respectively; the first P-type reversing valve is used for selecting test modes; the control loop controls on-off of the hydraulic control one-way valves through the reversing valves, so that constant-speed, constant-pressure and durability test modes of the hydraulic cylinders are realized, the switching is relatively convenient, higher universality is realized, and addition of load weight of the hydraulic cylinders in working condition tests is avoided.

Description

technical field [0001] The invention relates to the field of hydraulic cylinder tests, in particular to a hydraulic cylinder durability test bench. Background technique [0002] Hydraulic cylinders are important actuators in hydraulic systems and are widely used in industries such as construction machinery, mining machinery, and intelligent machinery. The performance of hydraulic cylinders not only determines the reliability of hydraulic systems, but also affects the normal operation of mechanical equipment. With the development of hydraulic technology, higher and higher requirements are put forward for the performance of hydraulic cylinders. The test and detection of hydraulic cylinders is an important means to ensure the normal operation of hydraulic systems of mechanical equipment. [0003] At present, domestic hydraulic cylinder manufacturing enterprises mostly refer to national standards and machinery industry standards for the durability test of hydraulic cylinders. Th...

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Problems solved by technology

[0003] At present, domestic hydraulic cylinder manufacturing enterprises mostly refer to national standards and machinery industry standards for the durability test of hydraulic cylinders. The test methods and methods for hydraulic cylinders are relatively simple, especially for the durability test of hydraulic cylinders, which lack other forms of hydraulic pressure. Cylinder test method is not conducive to respond to the current increasingly high market requirements

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