Airfoil follow-up sealing structure

A technology of follow-up sealing and airfoil, applied in the direction of engine sealing, engine components, aircraft parts, etc., can solve the problems of poor sealing performance, low rigidity, high maintenance cost, etc., to avoid distortion, reduce maintenance cost, and optimize the sealing form Effect

Active Publication Date: 2016-05-11
XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
View PDF5 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of low rigidity, poor sealing performance and high maintenance cost of the conventional follow-up sealing structure of the aircraft wing surface, and propose a follow-up seal structure of the wing surface

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Airfoil follow-up sealing structure
  • Airfoil follow-up sealing structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0009] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0010] Such as figure 1 As shown, the structure of the present invention includes a rubber sealing profile 1, a spring pressing piece 2 and a baffle plate 3, one end of the baffle plate 3 can be fixedly connected to the movable wing surface 4, and the rubber sealing profile 1 and the spring pressing piece 2 are passed through fasteners. 6 is fixed on the other end of the baffle plate 3, the rubber sealing profile 1 is made of rubber material, the surface is covered with polytetrafluoroethylene fabric, it is located between the body skin 5 and the spring pressure piece 2, and the end in contact with the body skin 5 has a triangular section The shape ensures that one apex of the triangle is in contact with the body skin 5. The spring pressing piece 2 adopts a spring steel structure. One end is fixed on the baffle 3 with the rubber sealing pro...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an airfoil follow-up sealing structure which comprises a rubber sealing profile 1, a spring pressing piece 2 and a baffle 3, wherein one end of the baffle 3 can be fixedly connected to a movable airfoil 4, the rubber sealing profile 1 and the spring pressing piece 2 are fixed at the other end of the baffle 3 by fasteners 6, the rubber sealing profile 1 is located between a machine skin 5 and the spring pressing piece 2; one end, in contact with the machine skin 5, of the rubber sealing profile 1 is in triangular section shape to ensure that one vertex of the triangle is in contact with the machine skin; the spring pressing piece 2 is of a spring steel structure, so as to ensure pretightening force of contact between the rubber sealing profile 1 and the machine skin 5; and by utilizing the characteristics of elastic expansion and compression of the spring pressing piece 2, production of elastic deformation of the rubber sealing profile 1 between the baffle and the machine skin 5 can be ensured, thus realizing pneumatic sealing. According to the invention, the sealing manner of the airfoil follow-up structure can be optimized, distortion and tearing of the rubber sealing profile can be avoided, pneumatic sealing efficiency can be improved, and maintenance cost can be lowered.

Description

technical field [0001] The invention belongs to the technical field of aircraft structure sealing, and relates to an airfoil follow-up sealing structure. Background technique [0002] Such as figure 2 As shown in the figure, the follow-up sealing structure of the horizontal stabilizer of a certain type of aircraft is that a follow-up baffle is installed at the root of the horizontal stabilizer, and a P-shaped rubber profile is fixed around the follow-up baffle with a metal pressure plate, which is realized by extrusion deformation of the rubber profile. Pneumatic seal between the follower baffle and the body skin. Both the follower baffle and the skin of the fuselage are cubic curved surfaces, and the gap between them varies greatly during relative rotation, which requires a large section size of the rubber sealing profile, resulting in a decrease in the stiffness of the rubber sealing profile. During relative rotation, the P-type rubber The arc portion where the profile c...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & AuthorityApplications(China)
IPC IPC(8): F16J15/18B64C1/26
Inventor成炜杨霍燕覃雯
OwnerXIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA