CN213677188U - Fairing tray mounting and fixing structure - Google Patents
Fairing tray mounting and fixing structure Download PDFInfo
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- CN213677188U CN213677188U CN202022695175.2U CN202022695175U CN213677188U CN 213677188 U CN213677188 U CN 213677188U CN 202022695175 U CN202022695175 U CN 202022695175U CN 213677188 U CN213677188 U CN 213677188U
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- fairing
- tray
- propeller hub
- hub
- circular groove
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Abstract
The utility model discloses a fairing tray mounting and fixing structure, which comprises a propeller hub and a fairing tray; the fairing tray and the propeller hub are fixed through locking screws; the outer portion of the propeller hub is provided with an annular convex shoulder, the center of the upper portion of the fairing tray is provided with a circular groove, the shape of the inner wall of the circular groove is matched with that of the outer wall of the annular convex shoulder, and the circular groove of the fairing tray is buckled and pressed on the annular convex shoulder of the propeller hub. The utility model discloses can not be restricted by the molding of engine flange, also not restricted by fuselage and engine flange position relation. The propeller hub and the engine flange are integrally installed, the positioning is accurate, and the fixing of the fairing tray and the propeller hub cannot be influenced even if the propeller hub is disassembled and replaced for multiple times.
Description
Technical Field
The utility model belongs to the technical field of the aeronautical technology and specifically relates to a radome fairing tray installation fixed knot constructs.
Background
In the prior art, the fairing installation mode is that the fairing tray is clamped on a flange of an engine through a propeller hub, but the fairing tray is limited by the flange shape of the engine, so that the situation that the assembly cannot be carried out exists in the position relation of part of the engine flange and a machine body, the assembly of the propeller hub and the fairing tray is damaged, the installation surface of the fairing tray can be directly damaged through repeated dismounting and mounting inspection, the fairing tray is damaged, and the service life of the fairing tray is greatly reduced.
Disclosure of Invention
The utility model aims at providing a radome fairing tray installation fixed knot constructs to the defect that prior art exists, can not receive the molding restriction of engine flange, also do not receive the restriction of fuselage and engine flange position relation. The propeller hub and the engine flange are integrally installed, the positioning is accurate, and the fixing of the fairing tray and the propeller hub cannot be influenced even if the propeller hub is disassembled and replaced for multiple times.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a fairing tray mounting and fixing structure comprises a propeller hub and a fairing tray;
the fairing tray and the propeller hub are fixed through locking screws;
the outer portion of the propeller hub is provided with an annular convex shoulder, the center of the upper portion of the fairing tray is provided with a circular groove, the shape of the inner wall of the circular groove is matched with that of the outer wall of the annular convex shoulder, and the circular groove of the fairing tray is buckled and pressed on the annular convex shoulder of the propeller hub.
Further, the hub is fixedly connected with a flange of the engine.
Furthermore, the propeller hub is provided with a first threaded hole, the fairing tray is provided with a second threaded hole, and the first threaded hole and the second threaded hole are correspondingly arranged and are fixedly connected through a locking screw.
Further, the thread length of the locking screw is matched with the thread hole of the hub, and full threads are adopted.
Compared with the prior art, the utility model following beneficial effect has:
the propeller hub is provided with a threaded hole, the propeller hub and the fairing tray are locked and positioned by the locking screw, and the propeller hub and the fairing tray are integrated and then fixed with an engine flange. The openings in the hub and the cowl tray are positioned to mate. The thread length of the locking screw is matched with the thread hole of the propeller hub, and full threads are adopted. Meanwhile, the stability of single screw fixation is enhanced by the buckling structure of the tray and the propeller hub. The utility model discloses a new mounting structure can not be restricted by the molding of engine flange, also does not receive the restriction of fuselage and engine flange position relation. The propeller hub and the engine flange are integrally installed, the positioning is accurate, the fixing of the fairing tray and the propeller hub cannot be influenced even if the propeller hub is disassembled and replaced for multiple times, the adaptability is good, the failure rate is reduced, and the installation efficiency is greatly improved.
Drawings
Fig. 1 is a schematic view of a mounting and fixing structure of a fairing tray of the present invention;
fig. 2 is a schematic view of a prior art cowl tray mounting arrangement.
In the figure: 1 locking screw, 2 propeller hubs, 3 fairing trays and 4 engine flanges.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution:
a fairing tray mounting and fixing structure comprises a propeller hub 2 and a fairing tray 3;
the fairing tray and the propeller hub are fixed through a locking screw 1;
the outer portion of the propeller hub is provided with an annular convex shoulder, the center of the upper portion of the fairing tray is provided with a circular groove, the shape of the inner wall of the circular groove is matched with that of the outer wall of the annular convex shoulder, and the circular groove of the fairing tray is buckled and pressed on the annular convex shoulder of the propeller hub. The buckling structure enhances the stability of single screw fixation.
Further, the hub is fixedly connected with the engine flange 4.
Furthermore, the propeller hub is provided with a first threaded hole, the fairing tray is provided with a second threaded hole, and the first threaded hole and the second threaded hole are correspondingly arranged and are fixedly connected through a locking screw.
Further, the thread length of the locking screw is matched with the thread hole of the hub, and full threads are adopted.
The propeller hub is provided with a threaded hole, the propeller hub and the fairing tray are locked and positioned by the locking screw, and the propeller hub and the fairing tray are integrated and then fixed with an engine flange. The openings in the hub and the cowl tray are positioned to mate. The thread length of the locking screw is matched with the thread hole of the propeller hub, and full threads are adopted. The utility model discloses a new mounting structure can not be restricted by the molding of engine flange, also does not receive the restriction of fuselage and engine flange position relation. The propeller hub and the engine flange are integrally installed, the positioning is accurate, the fixing of the fairing tray and the propeller hub cannot be influenced even if the propeller hub is disassembled and replaced for multiple times, the adaptability is good, the failure rate is reduced, and the installation efficiency is greatly improved.
All parts and parts which are not discussed in the present application and the connection mode of all parts and parts in the present application belong to the known technology in the technical field, and are not described again.
In the present application, the term "plurality" means two or more unless expressly defined otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or unit indicated must have a specific direction, be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the present invention.
In the description of the present specification, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. A fairing tray mounting and fixing structure comprises a propeller hub and a fairing tray;
the propeller is characterized in that the fairing tray and the propeller hub are fixed through locking screws;
the outer portion of the propeller hub is provided with an annular convex shoulder, the center of the upper portion of the fairing tray is provided with a circular groove, the shape of the inner wall of the circular groove is matched with that of the outer wall of the annular convex shoulder, and the circular groove of the fairing tray is buckled and pressed on the annular convex shoulder of the propeller hub.
2. The fairing tray mounting attachment of claim 1 wherein said hub is fixedly attached to an engine flange.
3. The structure as claimed in claim 1 or 2, wherein the hub has a first threaded hole, the cowl tray has a second threaded hole, and the first and second threaded holes are correspondingly formed and fixed by a locking screw.
4. The fairing tray mounting and fixing structure of claim 3, wherein the thread length of said locking screw is adapted to the thread hole of the hub and is full thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022695175.2U CN213677188U (en) | 2020-11-19 | 2020-11-19 | Fairing tray mounting and fixing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022695175.2U CN213677188U (en) | 2020-11-19 | 2020-11-19 | Fairing tray mounting and fixing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213677188U true CN213677188U (en) | 2021-07-13 |
Family
ID=76733971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022695175.2U Active CN213677188U (en) | 2020-11-19 | 2020-11-19 | Fairing tray mounting and fixing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213677188U (en) |
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2020
- 2020-11-19 CN CN202022695175.2U patent/CN213677188U/en active Active
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