Folding mechanism suitable for folding morphing wing

A folding mechanism and variant wing technology, applied in the directions of wings, wing adjustment, aircraft parts, etc., can solve the problems of poor load-bearing capacity, serious wing structure coupling, unfavorable mechanism maintenance and replacement, etc., to save space, Simple connection, reduced weight and size

Active Publication Date: 2020-12-22
BEIHANG UNIV
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  • Application Information

AI Technical Summary

Problems solved by technology

Actuators for wing folding can be divided into mechanical actuators, memory alloy actuators, and piezoelectric actuators. Among them, mechanical actuators are relatively mature and widely used in carrier-based aircr

Method used

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  • Folding mechanism suitable for folding morphing wing
  • Folding mechanism suitable for folding morphing wing
  • Folding mechanism suitable for folding morphing wing

Examples

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example

[0055] Example: Folding variant wing model sample design for a certain project

[0056] In this example, the arrangement of the folding mechanisms adopts a mixed arrangement, and every three folding mechanisms form a folding mechanism group, and the two folding mechanism groups are connected through the outer sleeve (13) and the transmission shaft (16). The motor (15) arranged in the inner structure of the wing section transmits the output torque to the folding mechanism through the bevel gear commutator (14), so as to realize the rotation action of the folding mechanism group. The outer planet carrier (10) of the outermost folding mechanism of the folding mechanism group is bolted to the housing of the bevel gear commutator (14) through mounting holes arranged circumferentially at the bottom of the planet carrier (10).

[0057] Figure 7 Show the physical model of the folding mechanism according to an embodiment of the present invention and the photograph of its static test ...

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Abstract

The invention provides a folding mechanism suitable for a folding morphing wing. The folding mechanism has the characteristics of lower driving torque and modularization in installation and maintenance. The folding mechanism comprises a sun wheel shaft (1), a gear ring (2), a planet wheel bearing (3), a planet wheel (4), a hinge shell (5), a gear box sealing cover (6), a planet carrier shaft (7),a hinge bearing (8), an oil-proof cover (9), a planet carrier (10), a sun wheel shaft bearing (11), a dust cover (12) and an outer sleeve (13). According to the folding mechanism, a planet gear systemis adopted, torque is transmitted through a gear meshing higher pair, and the driving torque of the mechanism for achieving the folding action is reduced by utilizing the characteristic of high reduction ratio of the planet gear system. When the wing load is large, the load of each folding mechanism can be reduced in the mode that a plurality of folding mechanisms are connected in parallel. The folding mechanism has the advantages of easiness in installation, the compact structure, large torque and high adaptability and is suitable for wings of various kinds of shipboard aircraft and foldingmorphing aircraft.

Description

technical field [0001] The invention relates to a folding mechanism suitable for folding modified wings. Background technique [0002] For traditional aircraft, it is difficult to achieve both excellent low-speed flight performance and high-speed flight performance. The working environment of high-speed aircraft has high dynamic pressure, so it does not need a large wing area and wing thickness to maintain flight. In order to reduce drag, high-speed aircraft usually have a smaller aspect ratio, lower wing thickness, and the leading edge of the wing is mostly pointed to reduce shock wave resistance; while low-speed aircraft have low dynamic pressure in the working environment to ensure lift , a wing with a relatively large aspect ratio and a relatively thick wing is required to ensure that the aircraft has a large wing area and a large lift coefficient. [0003] The folding wing variant aircraft is a variant aircraft that significantly changes the effective area of ​​the wi...

Claims

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Application Information

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IPC IPC(8): B64C3/54G09B25/02
CPCB64C3/546G09B25/02
Inventor 宋晨杨昊霖张桢锴雷朝辉杨超
Owner BEIHANG UNIV
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