Crossed downwards-reversed airfoil folding mechanism

A folding mechanism and airfoil technology, applied in wing adjustment, mechanical equipment, gear transmission, etc., can solve the problems of reduced airfoil aerodynamic efficiency, space waste, etc., to improve lift-to-drag ratio and aerodynamic efficiency, and flexible mechanism movement. , the effect of high stability

Inactive Publication Date: 2017-12-22
JIANGXI HONGDU AVIATION IND GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Solve the problems of wasted space and reduced aerodynamic efficiency of the airfoil caused by symmetrical flat folding of the traditional folding mechanism, and realize reliable deployment of the cross lower anti-wing surface

Method used

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  • Crossed downwards-reversed airfoil folding mechanism
  • Crossed downwards-reversed airfoil folding mechanism
  • Crossed downwards-reversed airfoil folding mechanism

Examples

Experimental program
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Effect test

Embodiment Construction

[0023] The present invention is further described below in conjunction with accompanying drawing:

[0024] like Figure 1~5 As shown in the figure, a folding mechanism for the cross lower anti-airfoil includes a slider 8, a left space connecting rod 6, a right space connecting rod 7, a left airfoil 1, a right airfoil 2, a left rotating shaft 4, a right rotating shaft 5, a beam 3, and a guide rail 9. Right guide rail 10, guide rail bracket 11; left airfoil 1 and right airfoil 2 are installed on the crossbeam 3 through left rotating shaft 4 and right rotating shaft 5 respectively and can rotate freely around left rotating shaft 4 and right rotating shaft 5; left space connecting rod 6, Right space connecting rod 7 is made up of left joint 14, right joint 16, cylinder 15 and left joint bearing 13, right joint bearing 17; Left joint 14, right joint 16 are threadedly connected with cylinder 15. The left space connecting rod 6 and the right space connecting rod 7 are respectively c...

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PUM

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Abstract

The invention relates to a longitudinal airfoil folding mechanism and discloses a crossed downwards-reversed airfoil folding mechanism. According to the crossed reversed airfoil folding mechanism, parts have simple structures and are convenient to dismount and mount; a connecting rod is connected with an airfoil and a sliding block by adopting knuckle bearings; the movement of the mechanism is flexible and is not blocked; the sliding stability of the sliding block along a guide rail is high and the unfolding synchronization of left and right airfoils can be effectively ensured; a space connecting rod mechanism is adopted so that left and right synchronous crossed folding and unfolding of the airfoils are realized; after the airfoils have pneumatic deformation, the effective area is enlarged, and the lift-to-drag ratio and the pneumatic efficiency are improved.

Description

technical field [0001] The invention relates to a longitudinal airfoil folding mechanism, in particular to a cross-down reverse longitudinal airfoil folding mechanism. Background technique [0002] In order to meet the aerodynamic and spatial layout requirements of an aircraft, the airfoil adopts a cross-down reverse layout scheme, and uses a space linkage mechanism to drive the left and right airfoils synchronously to realize folding and unfolding. The common folding airfoil module adopts a symmetrical longitudinal folding scheme and drives a planar linkage mechanism. If the chord length of the airfoil is wider, the lateral direction of the folded airfoil will exceed the envelope of the body, which will affect the overall dimensions of the aircraft and increase the difficulty of skin repair. At the same time, after the flat-folded airfoil is deployed, it deforms under the action of aerodynamic lift, which reduces the effective area of ​​the airfoil, the lift-to-drag ratio,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64C3/40B64C3/54F16H1/16
Inventor 陈雷洪厚全姚盼盼万渠毛端华瞿绍奇付俊兴吴华晴张志强蒋宇涛
Owner JIANGXI HONGDU AVIATION IND GRP
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