Metal corrugated pipe stability test device

Abstract

A metal corrugated pipe stability test device comprises a screw rod, a lower flange and an upper flange which are screwed on the screw rod, and an armored reinforced corrugated pipe arranged between the lower flange and the upper flange. A lower sealing assembly and an upper sealing assembly are arranged at the two ends of the armored reinforced corrugated pipe; a pressure source connector with a pressurizing channel is arranged in the middle of the lower flange, and the outlet end of the pressure source connector penetrates through the lower boss flange and the lower groove flange to be communicated with a cavity in the armored reinforced corrugated pipe. A test inclined base plate with an inclined lower surface is arranged between the upper boss flange and the upper flange; according to the device, the inclined base plate for testing is matched with the corrugated pipe, the corrugated pipe is forced to deflect in an axial extrusion mode, a pressurizing medium is conveyed to a cavity of the armored reinforced corrugated pipe through the pressure source connector, meanwhile, the actually-measured pressure value is recorded, and the problem of internal pressure testing of the corrugated pipe in the deflection state is solved; the device is used for verifying performance stability and working reliability of products.

Description

technical field [0001] The invention belongs to metal bellows test technology, in particular to a metal bellows stability test device. Background technique [0002] Metal bellows products are in accordance with the requirements of relevant industry standards, national standards, and national military standards. When the design or production is finalized, when the structure, material, and process change, when the production is stopped for more than two years and the production is resumed, when the production is transferred to the factory, etc. Type test or qualification test. The inspection items include destructive tests such as pressure resistance, fatigue life, and blasting, and relevant standards provide specific test methods. [0003] A kind of armored swinging bellows with a reinforcing ring. When the two ends of the bellows are not on the same axis, there is a deflection angle of about 3°, and the working pressure is relatively high. In order to ensure the reliable wo...

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