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Sealing covering cap for opening of outer hanging point of plane

A hanging point and aircraft technology, applied in the field of aircraft structure design, can solve problems such as restricting aircraft performance, aircraft stealth performance and aerodynamic performance, etc., and achieve simple and reliable installation, small weight and external dimensions of the mechanism, and rapid modification. Effect

Active Publication Date: 2016-06-08
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this method has obvious disadvantages: after the pylon is thrown away, there is no cover to seal the opening on the skin of the external hardpoint, which has a great impact on the stealth performance and aerodynamic performance of the aircraft, which restricts the performance of the aircraft

Method used

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  • Sealing covering cap for opening of outer hanging point of plane
  • Sealing covering cap for opening of outer hanging point of plane
  • Sealing covering cap for opening of outer hanging point of plane

Examples

Experimental program
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Effect test

Embodiment Construction

[0046] This embodiment is a sealing flap for the opening of a certain type of aircraft's hardpoint.

[0047] The coordinate system of the sealing flap is defined as figure 1 Shown: the y direction is the flying direction of the aircraft, the x direction is the span direction, and the z direction is above the aircraft.

[0048] This embodiment includes a housing 1, 2 sealing plates 12, 2 sealing tension springs 7, 1 sealing plate cover plate 3, 2 pairs of inner guide rails 11, 2 outer guide rails 10, 2 sealing plate reset wrenches 6. 4 inner rail rollers 13, 4 outer rail rollers 14, 2 symmetrically arranged locking device pins 25, 4 locking device hooks 4, 4 locking device limit pins 23, 2 locking device hoops 15. Two locking device torsion springs 16. Each of the components is located in the shell 1, such as figure 2 shown.

[0049] Consists of 1 sealing plate 12, 1 sealing plate cover 3, 2 pairs of inner guide rails 11, 2 outer guide rails 10, 14 cover plate fixing bolts...

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Abstract

The invention discloses a sealing covering cap for an opening of an outer hanging point of a plane. A sealing plate component and a locking device are both located in a shell. Two inner guiding rails and two outer guiding rails in the sealing plate component are installed on sealing plates through guiding rail rollers correspondingly and fixed to the lower surface of a sealing plate cover plate through wall plates which are located on the inner guiding rails and the outer guiding rails correspondingly, so that all the sealing plates are fixedly connected with the sealing plate cover plate. The sealing plates can move horizontally in the shell through the inner guiding rails and the inner guiding rail rollers. Sealing tension springs in the sealing plate component are installed on hooks on the upper surfaces of the sealing plates correspondingly and located on the outer sides of the two inner guiding rails. The sealing covering cap is kept to be in an open state after a hanger is installed and can be closed automatically after the hanger is thrown and is kept to be in a closed state all the time in the flying process after the hanger is thrown. By the adoption of the sealing mechanism, the stealth performance and the aerodynamic performance of the plane can be remarkably improved, and the reliability is high.

Description

technical field [0001] The invention relates to the field of aircraft structure design, in particular to a cover for sealing the opening of an aircraft external hardpoint. Background technique [0002] In order to obtain excellent maneuverability and stealth performance, modern stealth aircraft usually use built-in magazines, which makes the aircraft encounter bottlenecks in range and ammunition load. When performing certain tasks, the aircraft must use external hardpoints to carry auxiliary fuel tanks or ammunition to meet the mission. Require. When the stealth aircraft performs missions, in order to ensure its maneuverability and stealth performance, before the aircraft enters the combat zone, it is necessary to throw away the auxiliary fuel tank together with the pylon. In addition, after the aircraft has launched the external ammunition, it is also necessary to throw away the pylon to reduce the radar reflection area and aerodynamic resistance of the aircraft, and ensur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64C1/14B64C1/12
CPCB64C1/12B64C1/14
Inventor 喻天翔简正新庄新臣孙中超
Owner NORTHWESTERN POLYTECHNICAL UNIV
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