Vertical test device for reliability test of aircraft landing gear door up lock

A technology of test device and upper lock, which is applied in the direction of measuring device, mechanical component test, machine/structural component test, etc. It can solve the problems that the test requirements cannot meet the requirements, do not have driving parts, cannot be triggered, etc., and achieve light weight , Low processing cost, small size effect

CN103983444BActive Publication Date: 2016-05-25NORTHWESTERN POLYTECHNICAL UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2016-05-25

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Abstract

The invention provides a vertical testing device for a reliability test of an aircraft landing gear door uplock. The vertical testing device is composed of a supporting mechanism, a simulated door structure and a driving device, wherein the door uplock to be tested, the simulated door structure and the driving device are all installed on the supporting mechanism, the supporting mechanism is connected with an external vibration table, the driving device drives the simulated door structure to move, and the simulated door structure comprises a lock ring, a lock ring supporting part, a simulated door frame and a belleville spring. The vertical testing device is small in size and low in weight, can be installed in an environment temperature test box and meet the weight requirement of the vibration table, can be matched with the vibration table to achieve vibration stress loading, can be matched with a hydraulic system to achieve work triggering of the door uplock to be tested, and can simulate aerodynamic force loading. The environment conditions and working conditions simulated by the device are pretty real, and the device has certain universality and can be used for the reliability test of door locks with similar principles. The vertical testing device is low in machining cost and low in testing cost.
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Description

technical field

[0001] The invention relates to the field of aircraft reliability tests, in particular to a vertical test device for the reliability test of an aircraft landing gear cabin door uplock. Background technique

[0002] The aircraft landing gear system includes a complex system consisting of landing gear mechanism assembly, landing gear door and actuator, upper / lower cabin door locks, auxiliary sensors and hydraulic control system, which has the characteristics of large mass, complex principle and high requirements for use; Whether the system can work normally is an important condition related to whether the aircraft can complete the task as required and ensure safety, and is a key part to ensure the normal use of the aircraft. The aircraft landing gear door up lock (hereinafter referred to as the door up lock) is a key product that affects whether the door can work normally, and is a key product that affects the work of the landing gear system. The door uplock i...

Examples

Embodiment Construction

[0022] Describe the present invention below in conjunction with specific embodiment:

[0023] In this embodiment, a vertical test device for the reliability test of the uplock of the aircraft landing gear door is composed of a support mechanism, a simulated door structure and a driving device.

[0024] The hatch door uplock to be tested, the simulated hatch door structure and the driving device are all installed on the support structure. The installation position of the hatch door uplock to be tested is the same as the actual working state. The support structure is also the connection between the test device and the test shaking table. Connect the interface.

[0025] Refer to the attached figure 2 , the connection base 1, the main load-bearing plate 2 and the auxiliary rib 3 are connected together by welding, which is the main body of the test device. The connection base 1 is processed with bolt holes connected with the vibration table. , to simulate a vibrating environment...