Aircraft airfoil blind rivet looseness repairing method

A wing surface and aircraft technology, applied in the field of aircraft wing surface connection, can solve the problems of loosening, falling off of pulling nails, easy loosening and falling off of pulling nails, etc.

Pending Publication Date: 2021-04-23
XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0002] At present, riveting is mainly used for the connection of old aircraft wing surfaces. At least one side of the skin is connected by rivets. However, the rivets are easy to loosen and fall off during long-term use. The rivets will loosen / fall off soon, and the rudder that has been installed can no longer be riveted with rivets. In addition, in the above-mentioned re-pumping process, the rudder surface needs to be separated from the machine, and the re-pumping method is more complicated.

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  • Aircraft airfoil blind rivet looseness repairing method
  • Aircraft airfoil blind rivet looseness repairing method
  • Aircraft airfoil blind rivet looseness repairing method

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Embodiment Construction

[0033] In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

[0034] It has been explained in the above-mentioned background technology that the current method of repairing old aircraft wing surfaces is as follows: once the rudder surface loosens / falls off, the original grade of the rivets is generally used to make up again. This kind of repair measure can solve the problem temporarily, but once the failure of pulling the nail loose / falls off again, it will be difficult to repair it later. Because the nail hole has been enlarged during the last repair, on the one hand, the nail edge distance has not met the design requirements, and the ...

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Abstract

The invention discloses a method for repairing looseness of an aircraft airfoil blind rivet. The method comprises the steps of determining the specification of the loosened blind rivet and the structural arrangement condition of a blind rivet connecting area; formulating repairing measures according to the loosening conditions of the current loosened drawing nails, the loosening conditions of the drawing nails comprise single drawing nail loosening and multiple drawing nail loosening, and different drawing nail repairing schemes are formulated according to different drawing nail loosening conditions; and cleaning the loosened nail pulling area according to the formulated nail pulling repair scheme, installing a bushing, installing a repair plate, and installing an adaptive repair pulling nail according to the nail pulling repair scheme. According to the method of the invention, the problem of loosening of the drawing nail is solved at one time, and the repaired drawing nail is prevented from loosening / falling off.

Description

technical field [0001] The invention relates to but not limited to the technical field of aircraft wing surface connection, in particular to a method for repairing loose nails on the aircraft wing surface. Background technique [0002] At present, riveting is mainly used for the connection of old aircraft wing surfaces. At least one side of the skin is connected by rivets. However, the rivets are easy to loosen and fall off during long-term use. The rivets will loosen / fall off soon, and the installed rudder can no longer be riveted with rivets. In addition, in the above-mentioned re-drawing process, the rudder surface needs to be separated from the aircraft, and the re-drawing method is more complicated. [0003] Therefore, how to select a reliable pulling nail to reconnect the loosened / falling off pulling nail has become an airfoil connection problem that needs to be solved urgently. Contents of the invention [0004] The purpose of the present invention is: the embodime...

Claims

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Application Information

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IPC IPC(8): B64F5/40
CPCB64F5/40
Inventor 达磊吴斌朱胜利
Owner XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
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