Plane main undercarriage space retraction/extension mechanism and retraction/extension method

A retractable mechanism and landing gear technology, applied in the chassis and other directions, can solve the problems of the landing gear door retractable mechanism and the complex control system, and achieve the effect of simplifying the design

Active Publication Date: 2012-05-02
LANDING GEAR ADVANCED MFG
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the shortcomings of the existing undercarriage that needs to be turned over, the retractable mechanism of the landing gear hatch and the control system are complex, the present invention aims to provide a space retractable mechanism and a retractable method for the main landing gear of an aircraft. The landing gear does not turn over when the landing gear is on the ground, and the landing gear door mechanism and retractable control system can be simplified

Method used

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  • Plane main undercarriage space retraction/extension mechanism and retraction/extension method
  • Plane main undercarriage space retraction/extension mechanism and retraction/extension method
  • Plane main undercarriage space retraction/extension mechanism and retraction/extension method

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Embodiment Construction

[0031] A space retractable mechanism for the main landing gear of an aircraft, such as image 3 and Figure 5 As shown, it includes a crossbeam 1 connected to the body 10, a bracket 8 hinged with the retractable actuator 9, and the other end of the crossbeam 1 is connected with the top of the outer cylinder 3 of the landing gear through the first universal hinge mechanism. The upper part of the outer cylinder 3 is connected with one end of a rocker arm 4 through the second universal hinge mechanism, and the other end of the rocker arm 4 is hinged with the bracket 8; the retractable actuator 9, the bracket 8 and a connecting rod assembly 6. The lever 7 constitutes a four-bar linkage drive mechanism; the axis OO of the hinge pivot 2 of the first universal hinge mechanism 1 , The connecting line OO between the hinge center points of the first universal hinge mechanism and the second universal hinge mechanism 3 , and the axis OO of the hinge pin of the rocker arm 4 and the brack...

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Abstract

The invention discloses a plane main undercarriage space retraction/extension mechanism and a plane main undercarriage space retraction/extension method and belongs to the design field of plane main undercarriages. In order to solve the problem that a traditional undercarriage is required to be turned, and a undercarriage cabin door retraction/extension mechanism and a control system are complex, the plane main undercarriage space retraction/extension mechanism consists of a five-pole and five-secondary space retraction/extension mechanism and a plane four-connecting rod driving mechanism, wherein the five-pole and five-secondary space retraction/extension mechanism consists of a cross beam, a pivoting shaft, an outer cylinder, a rocker and a rotary sleeve; and the combined plane four-connecting rod driving mechanism consists of connecting rod components, a lever, a bracket and a driving component retraction/extension acting cylinder. The undercarriage space retraction/extension is realized by using a universal hinge, and kinematic pairs, such as a rotation pair and the like, so the design of the undercarriage cabin door and a retraction/extension control system are simplified.

Description

technical field [0001] The invention relates to the field of aircraft landing gear design, in particular to an aircraft main landing gear space retractable mechanism and a retractable method. Background technique [0002] At present, for high-wing aircraft with special storage requirements for the main landing gear, the traditional main landing gear retraction mechanism is generally a plane flipping and retracting around the fixed axis of the outer cylinder. figure 1 and figure 2 As shown, the mechanism drives the outer cylinder around the fixed axis through the retracting actuator to realize retracting and retracting. During the retracting and retracting process, the buffer pillar and the machine wheel turn over. The landing gear door consists of a middle door and an aft door, which are driven separately. [0003] The traditional retractable mechanism of this type of main landing gear, due to the overturning of the landing gear during retraction, makes it impossible for ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64C25/10
Inventor 陈和潮金军孙继勇宁晓东王小锋折世强吴林张航舟徐达生李田囡张成亮
Owner LANDING GEAR ADVANCED MFG
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