A test device and test method for hose aging test

Abstract

The invention discloses a test device and a test method for hose aging test, which comprises a support platform, a first fixing seat for fixing one end of the hose is arranged on the upper end surface of the support platform, and a first fixing seat for fixing one end of the hose is arranged on the lower end surface of the support platform. There is a swinging mechanism, the swinging mechanism is provided with a second fixing seat, and the other end of the hose is fixed on the second fixing seat. The hose is driven by the swing mechanism to undergo regular cyclic bending deformation, thereby simulating the fatigue damage caused by the mechanical deformation of the hose during actual operation, and the hose is irradiated with ultraviolet light to accelerate the aging speed of the hose, and the final inspection Whether there are cracks or other damages in the hose, the operating speed of the swinging mechanism can be controlled by controlling the motor speed, thereby controlling the deformation rate of the hose, simulating the fatigue strength of different working conditions, and the ultraviolet lamp can adjust the intensity to control the aging of the hose The speed greatly shortens the test time.

Description

technical field [0001] The invention relates to a test device and a test method for hose aging test. Background technique [0002] As a cheap and clean energy, natural gas is taking an increasing proportion in the world's energy consumption with the improvement of mining and utilization technology. The number of CNG vehicles using compressed natural gas as fuel is increasing. CNG refueling stations mainly refer to places where CNG vehicles are filled with fuel, and CNG refueling machines are important equipment for refueling CNG vehicles. The gas filling hose is a device that leads from the gas filling machine to the gas filling gun. It needs to maintain a certain strength and flexibility during gas filling. The national standard requires that the outer layer of the gas filling hose and the armored protective layer should have no damage, and have good static conductivity, and its compressive strength is the same as that of the gas filling machine. Gas filling hose is usua...

AI Technical Summary

Problems solved by technology

Gas filling hose is usually composed of nylon conductive inner tube, synthetic fiber braided reinforcement layer and polyurethane outer layer, etc. It will gradually age during use, and it is easy to become a source of dangerous accidents. testing is necessary

At present, there is a device that uses the joint operation of the cylinder and the time relay to control the bending movement of the APP hose, but there is still the problem of a long test time

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