CN112498696B - Swing stopper for airplane nacelle - Google Patents
Swing stopper for airplane nacelle Download PDFInfo
- Publication number
- CN112498696B CN112498696B CN202011432760.1A CN202011432760A CN112498696B CN 112498696 B CN112498696 B CN 112498696B CN 202011432760 A CN202011432760 A CN 202011432760A CN 112498696 B CN112498696 B CN 112498696B
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- CN
- China
- Prior art keywords
- hole
- swing stopper
- swing
- base body
- nacelle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D9/00—Equipment for handling freight; Equipment for facilitating passenger embarkation or the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D47/00—Equipment not otherwise provided for
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/40—Weight reduction
Abstract
The application belongs to the technical field of aviation structural design, and particularly relates to an aircraft pod swing stopper. The method comprises the following steps: the nacelle hanger comprises a nacelle hanger, a swing stopper base, a preset piece and a connecting assembly. The nacelle hanger comprises a nacelle wall plate and a plurality of hanging claws arranged on the nacelle wall plate, and the lower surfaces of the hanging claws are arc-shaped; the upper surface of the swing stopper base body is in an arc shape matched with the lower surface of the hanging claw, and a first through hole is formed in the swing stopper base body; the preset piece comprises a base and an adjusting sheet, the base is arranged on the swing stopper base body, a limiting rod is arranged on the base, a second through hole matched with the first through hole is formed in the center of the limiting rod, a third through hole is formed in the center of the adjusting sheet, and the adjusting sheet is sleeved on the limiting rod through the third through hole; one end of the connecting component sequentially penetrates through the first through hole and the second through hole to install the swing stopper base body on the nacelle wall plate. The aircraft pod swing stopper has the advantages of being convenient to install, simple and convenient to manufacture, low in cost and the like in the whole structure, and is more suitable for future aircraft pods.
Description
Technical Field
The application belongs to the technical field of aviation structural design, and particularly relates to an aircraft pod swing stopper.
Background
At present, the main structure of the swing stopper of the military aircraft nacelle is that the nacelle is connected with the hanging rack through two lifting lugs, and four swing stoppers are arranged on the upper wall plate of the nacelle and are in contact with the hanging rack, so that the swing stopper of the nacelle is limited.
Most of the anti-sway devices used on the existing airplane pod are 1Cr18Ni9Ti, which belong to stainless steel and heat-resistant steel materials, the end face of the anti-sway device is supported with a slope surface to be contacted with the bottom of a hanger, and the contacted slope surface forms a support reaction force during the flight of the airplane, thereby playing the role of limiting the anti-sway of the pod. However, the structure has certain disadvantages that the gap between the aircraft nacelle hanger and the swing stopper of different batches of the aircraft nacelle hanger is slightly different, the nacelle structure vibrates in the flight of the aircraft, friction impact vibration and the like occur on the surface of the swing stopper, and a large bending moment is generated on the local structure of the nacelle wall plate, so that the wall plate structure is required to have good bending bearing capacity.
Accordingly, a technical solution is desired to overcome or at least alleviate at least one of the above-mentioned drawbacks of the prior art.
Disclosure of Invention
The application aims to provide an aircraft nacelle anti-sway device so as to solve at least one problem existing in the prior art.
The technical scheme of the application is as follows:
an aircraft pod sway stop comprising:
a pod hanger comprising a pod wall panel and a plurality of lifting claws disposed on the pod wall panel, the lower surfaces of the lifting claws being arcuate;
the upper surface of the swing stopper base body is in an arc shape matched with the lower surface of the lifting claw, and a first through hole is formed in the swing stopper base body;
the preset part comprises a base and an adjusting sheet, the base is arranged on the swing stopper base body, a limiting rod is arranged on the base, a second through hole matched with the first through hole is formed in the center of the limiting rod, a third through hole is formed in the center of the adjusting sheet, and the adjusting sheet is sleeved on the limiting rod through the third through hole;
and one end of the connecting assembly sequentially penetrates through the first through hole and the second through hole to install the swing stopper base body on the nacelle wallboard.
Optionally, the swing stopper base is made of stainless steel.
Optionally, a surface of the swing stopper base is provided with polyurethane foam.
Optionally, the connection assembly comprises a screw and a washer.
Optionally, the screw is a socket head cap screw.
Optionally, the preset piece is made of stainless steel.
Optionally, the adjustment tab comprises a plurality.
The invention has at least the following beneficial technical effects:
the aircraft pod swing stopper adopts the structural characteristics of the arc-shaped contact surface, so that the influences of impact vibration and the like can be reduced, and the force transmission is more uniform and reasonable; the thickness of the preset part can be adjusted by increasing or reducing the assembling quantity of the adjusting pieces, so that the height of the vibration reduction and swing stop device is adjusted to adapt to different gap quantities, the swing stop device can be in tighter contact with the hanging rack, and the damage of vibration to the body structure is reduced.
Drawings
FIG. 1 is a schematic view of an aircraft nacelle pylon according to an embodiment of the present application;
FIG. 2 is a schematic overall view of an aircraft pod sway stop according to an embodiment of the present application;
FIG. 3 is a front view of an aircraft pod sway stop according to an embodiment of the present application;
FIG. 4 is a side view of an aircraft pod sway stop according to an embodiment of the present application;
FIG. 5 is a schematic view of a preset of an aircraft pod sway stop according to an embodiment of the present application;
FIG. 6 is a schematic view of a coupling assembly of an aircraft pod swing stop according to an embodiment of the present application;
FIG. 7 is an assembly view of an aircraft pod sway stop according to an embodiment of the present application.
Wherein:
1-a pendulum stopper base; 2-connecting the components; 3-presetting pieces.
Detailed Description
In order to make the implementation objects, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the drawings in the embodiments of the present application. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are a subset of the embodiments in the present application and not all embodiments in the present application. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application. Embodiments of the present application will be described in detail below with reference to the accompanying drawings.
In the description of the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present application and for simplifying the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the scope of the present application.
The present application is described in further detail below with reference to fig. 1 to 3.
The application provides an aircraft pod anti-sway device, includes: nacelle pylon, swing stop base 1, presets 3 and connection assembly 2.
Specifically, as shown in fig. 1, the nacelle hanger comprises a nacelle wall and a plurality of hanging claws arranged on the nacelle wall, wherein the lower surfaces of the hanging claws are arc-shaped, and the lower surfaces of the hanging claws of the nacelle hanger are made into arc-shaped to be matched with the arc-shaped surface of the swing stopper base body 1, so that the swing stopper limiting function of the nacelle is achieved. In this embodiment, the pod wall plate is rectangular, and two lifting claws are respectively arranged along two opposite ends of the pod hanger.
Further, as shown in fig. 2 to 4, the upper surface of the swing stopper base body 1 is in an arc shape matched with the lower surface of the hanging claw, and the swing stopper base body 1 is provided with a first through hole; the preset part 3 comprises a base and an adjusting sheet, the base is arranged on the swing stopper base body 1, a limiting rod is arranged on the base, a second through hole matched with the first through hole is formed in the center of the limiting rod, a third through hole is formed in the center of the adjusting sheet, and the adjusting sheet is sleeved on the limiting rod through the third through hole; one end of the connecting component 2 passes through the first through hole and the second through hole in sequence to install the swing stopper base body 1 on the nacelle wall plate.
In one embodiment of the present application, 4 swing stoppers having the same structural form may be mounted on the nacelle wall plate according to the nacelle swing stopper structure and functional requirements, and the size of the swing stopper base 1 may be set to about 65 × 55 mm. The structure of the single nacelle anti-sway device is shown in fig. 2, the anti-sway device base body 1 can be made of high-temperature resistant materials such as stainless steel, the surface can be made of polyurethane foam, and the anti-sway device base body is incompressible, has good buffering and impact resistance characteristics and is mainly used for vibration reduction.
In one embodiment of the present application, as shown in fig. 5, the preset piece 3 is made of stainless steel, the preset piece 3 is installed in the polyurethane foam in advance during the forming process of the pendulum stopper base body 1, and the height of the preset piece 3 is changed by increasing or decreasing the number of the adjusting pieces in the thickness direction, so as to adjust the gap.
In one embodiment of the present application, as shown in fig. 6, the connection assembly 2 is a special structure suitable for the structure of a vibration damping and anti-sway device, and the preset member 3 is connected with the nacelle wall plate structure through the connection assembly 2. In this embodiment, coupling assembling 2 contains purpose-made hexagon socket countersunk screw and relaxes the gasket, and coupling assembling 2 is less than the upper surface of the mounting hole of pendulum-stopping ware base member 1 after the installation, does not interfere with other positions, and this connection structure designs according to the pendulum-stopping ware, and the countersunk head screw head of hexagon socket type materials is few, and the smooth angle of difficult, is convenient for fasten and dismantle.
The utility model provides an aircraft nacelle anti-sway ware, if nacelle anti-sway ware production piece and finished product stores pylon accord with digital analog design parameter basically, nacelle anti-sway ware just need not adjust, directly can exert the spacing function of anti-sway, if there is the deviation, can adjust the difference of damping anti-sway ware height in order to adapt to the clearance volume through the thickness of adjusting the preset piece, realizes the function of adjusting.
The aircraft pod swing stopper adopts the structural characteristics of the arc-shaped contact surface, so that the influences of impact vibration and the like can be reduced, and the force transmission is more uniform and reasonable; the height of the vibration reduction and swing stop device is adjusted by adjusting the thickness of the preset piece to adapt to different gap amounts, the swing stop device can be in tighter contact with the hanging rack, and damage of vibration to the structure of the machine body is reduced; the whole structure has the characteristics of convenience in installation, simplicity and convenience in mechanical manufacture, low cost and the like, and is more suitable for future aircraft pods.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (6)
1. An aircraft pod sway stop, comprising:
a pod hanger comprising a pod wall panel and a plurality of hanging claws disposed on the pod wall panel, a lower surface of the hanging claws being arcuate;
the swing stopper comprises a swing stopper base body (1), wherein the upper surface of the swing stopper base body (1) is in an arc shape matched with the lower surface of the lifting claw, and a first through hole is formed in the swing stopper base body (1);
the swing stopper comprises a preset piece (3), wherein the preset piece (3) comprises a base and an adjusting sheet, the base is arranged on a swing stopper base body (1), a limiting rod is arranged on the base, a second through hole matched with the first through hole is formed in the center of the limiting rod, a third through hole is formed in the center of the adjusting sheet, and the adjusting sheet is sleeved on the limiting rod through the third through hole;
the connecting assembly (2) comprises a screw and a gasket, and one end of the screw of the connecting assembly (2) penetrates through the first through hole and the second through hole in sequence to install the swing stopper base body (1) on the nacelle wall plate.
2. An aircraft pod swing stopper according to claim 1 wherein the swing stopper base (1) is of stainless steel.
3. An aircraft pod swing stopper according to claim 1, characterized in that the surface of the swing stopper base body (1) is provided with polyurethane foam.
4. The aircraft pod swing stop of claim 1, wherein the screw is a socket head cap screw.
5. An aircraft pod swing stop according to claim 1, characterized in that the presets (3) are of stainless steel.
6. The aircraft pod swing stop of claim 5, wherein the adjustment tab comprises a plurality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011432760.1A CN112498696B (en) | 2020-12-09 | 2020-12-09 | Swing stopper for airplane nacelle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011432760.1A CN112498696B (en) | 2020-12-09 | 2020-12-09 | Swing stopper for airplane nacelle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112498696A CN112498696A (en) | 2021-03-16 |
| CN112498696B true CN112498696B (en) | 2022-11-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011432760.1A Active CN112498696B (en) | 2020-12-09 | 2020-12-09 | Swing stopper for airplane nacelle |
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| Country | Link |
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| CN (1) | CN112498696B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7156347B2 (en) * | 2004-10-15 | 2007-01-02 | The Boeing Company | Pivotable pylon for external carriage of aircraft stores |
| CN102980733A (en) * | 2012-11-30 | 2013-03-20 | 西安电子工程研究所 | Vibration clamp for aircraft pod of small-scale helicopter |
| CN109795704A (en) * | 2017-11-16 | 2019-05-24 | 中国航空工业集团公司西安飞机设计研究所 | A kind of joint assembly |
| US11279486B2 (en) * | 2019-03-20 | 2022-03-22 | The Boeing Company | Auxiliary-pod mounting system and mounting methods for a helicopter |
| CN209757555U (en) * | 2019-03-21 | 2019-12-10 | 中国电子科技集团公司第二十九研究所 | Convex beam type high-adaptability suspension section structure of external hanging nacelle body of airplane |
| CN111319770A (en) * | 2020-03-17 | 2020-06-23 | 郑州郑飞机电技术有限责任公司 | Transfer nacelle suitable for air transportation |
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2020
- 2020-12-09 CN CN202011432760.1A patent/CN112498696B/en active Active
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| CN112498696A (en) | 2021-03-16 |
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