Cylinder Fatigue Test Machine

Abstract

The present invention relates to the technical field of fluid pressure testing, in particular to an oil cylinder fatigue test machine, which includes an equipment table, a pressure device, a first limit assembly, a second limit assembly and a plurality of fixing frames, and the pressure device, the first limit The position component and the second limit component are arranged obliquely along an oblique line. The oil cylinder is fixed on the first limit component and the second limit component. The oil cylinder performs telescopic movement under the cooperation of the external hydraulic system. Provides it with a controlled load force during telescoping motion. The pressure device, the first limit assembly and the second limit assembly of the present invention are distributed in an inclined line, the oil cylinder to be tested is fixed on the first limit assembly and the second limit assembly, and the load box included in the pressure device slides down by gravity, The load is directly applied to the oil cylinder. Because of its simple structure, it runs more stably and has a longer life, and the number of counterweights used with it can be adjusted to adjust the load force.

Description

technical field [0001] The invention relates to the technical field of fluid pressure testing, in particular to an oil cylinder fatigue testing machine. Background technique [0002] Cylinder is an important part of hydraulic system, it can convert hydraulic energy into mechanical energy of linear reciprocating motion. Because of its simple structure. It works reliably and has been widely used in mechanical systems. At present, there are many oil cylinder manufacturers. The performance and quality of the oil cylinder must not only meet the requirements of the main engine, but also meet the standard indicators of the oil cylinder itself. Therefore, a variety of oil cylinder testing equipment has been derived. [0003] For example, the Chinese utility model patent with the publication number CN205639174U discloses a double-acting oil cylinder fatigue test device. During use, the oil inlet and oil return port of the double-acting oil cylinder are connected with the hydraulic ...

AI Technical Summary

Problems solved by technology

[0005] The oil cylinder fatigue test device is to connect the telescopic rod of the oil cylinder to the counterweight through the crank, the rotating shaft, the third hinged rod, the fourth hinged rod, the first hinged rod, the second hinged rod and other parts to detect the counterweight. There are too many parts and it is too complicated. , under long-term operation of the oil cylinder, it is easy to be damaged and has a short service life;

[0006] The load provided by the counterweight is fixed and cannot be adjusted in time according to the needs of the test;

[0007] The vibration of the cylinder body is not strong when the oil cylinder is running slowly, but the durability test is usually operated continuously at the highest speed under the rated working conditions. , leading to serious loss of tooling

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