Air spring for suspension support in ground vibration test

Abstract

The invention belongs to the airplane suspension support technology in a ground vibration test, and particularly relates to an air spring for the ground vibration test. The air spring comprises an air spring body, an auxiliary air tank, a high-pressure hose and a rubber capsule, wherein the air spring body is a cylindrical air storage tank, a body ventilation opening for allowing air in the auxiliary air tank to inflow and outflow is formed in the middle of the wall of the air spring body, the body ventilation opening is connected with the auxiliary air tank through the high-pressure hose, flange discs are arranged at the two ends of the high-pressure hose, a bolt hole is formed in the lower portion of the bottom of the air storage tank and connected with a platform for the air spring body to be placed on through a bolt, and the rubber capsule is arranged in the air storage tank and connected between the movable top of the air storage tank and the top of an inner free rotation connecting device. According to the air spring, by adding the auxiliary air tank and improving the structure and the size of the air spring body, large-tonnage, low-rigidity, large-displacement and multi-freedom-degree airplanes can be jacked up, and the air spring has great practical application value.

Description

technical field [0001] The invention belongs to the aircraft suspension support technology in the ground vibration test, and in particular relates to the shape and jacking capacity of an air spring used in the ground vibration test. Background technique [0002] Due to the needs of aircraft ground vibration tests, large-tonnage air springs are required in aircraft suspension support technology to carry out ground vibration test suspension supports. However, neither the jacking tonnage nor the jacking position size of the existing air springs can meet the suspension support requirements of the ground vibration test of large-tonnage aircraft such as 60 tons or more. And there is no such equipment both at home and abroad, so a kind of large-scale air spring that can fully meet the suspension support requirements of large-tonnage aircraft has been innovated and invented. Contents of the invention [0003] The purpose of the present invention is to provide a special air spring...

AI Technical Summary

Problems solved by technology

However, neither the jacking tonnage nor the size of the jacking position of the existing air springs can meet the suspension support requirements of the ground vibration test of large-tonnage aircraft such as 60 tons or more.

Moreover, there is no such equipment at home and abroad, so we innovated and invented a large-scale air spring that can fully meet the suspension support requirements of large-tonnage aircraft.

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