Aircraft air spring lifter

Abstract

The invention belongs to aircraft suspension support technology, in particular to an aircraft air spring lifting support. The aircraft air spring lifting support of the invention includes a hydraulic station, a hydraulic lifting cylinder, a base, an auxiliary support, an air spring installation base plate, a control valve group, and a displacement sensor. The air spring installation base plate is a circular flange structure, which is set on the base for installing the air spring. Three hydraulic sound drop cylinders and three auxiliary supports are arranged around the air spring at intervals and evenly distributed on the air spring installation base plate In addition, the hydraulic lifting actuators are all provided with control valve groups and connected to the hydraulic station, and the displacement sensors are arranged on the side walls of the hydraulic lifting actuators. The air spring special lifting support for large aircraft of the present invention realizes three-point synchronous lifting of large aircraft in the support, greatly reduces the risk of aircraft support, and has extremely high safety and reliability.

Description

technical field [0001] The invention belongs to aircraft suspension support technology, in particular to an aircraft air spring lifting support. Background technique [0002] Aircraft suspension support technology is a support suspension technology during aircraft ground testing, which is used to simulate the free-free state of the aircraft in the air. Existing aircraft suspension support technology mainly adopts lifting base with leading screw and telex type lifting base. The lifting base with lead screw mainly achieves the purpose of lifting by rotating the lead screw. The disadvantages are: 1) time-consuming and laborious (rotating the lead screw by manpower); 2) it is not suitable for large-tonnage aircraft; 3) it cannot be synchronized at three points Lifting; 4) Poor safety. The fly-by-wire lifting base is mainly driven by a motor to rotate the screw to achieve the purpose of lifting. The disadvantage is that it is not suitable for large-tonnage aircraft. [0003] M...

AI Technical Summary

Problems solved by technology

The lifting base with lead screw mainly achieves the purpose of lifting by rotating the lead screw. The disadvantages are: 1) time-consuming and laborious (rotating the lead screw by manpower); 2) it is not suitable for large-tonnage aircraft; 3) it cannot be synchronized at three points Lifting; 4) Poor security

The fly-by-wire lifting base is mainly driven by the motor to rotate the screw to achieve the purpose of lifting. The disadvantage is: it is not suitable for large-tonnage aircraft

[0003] Modern aircraft ground vibration tests require the aircraft to be able to lift freely under the suspension support. The lifting system developed in the past can no longer meet the requirements of modern aircraft suspension support. Therefore, there is an urgent need for a new type of aircraft support equipment that can meet the requirements of modern aircraft ground vibration tests.

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