CN218489895U - Unmanned aerial vehicle variable cross section combined material tail-boom structure - Google Patents
Unmanned aerial vehicle variable cross section combined material tail-boom structure Download PDFInfo
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- CN218489895U CN218489895U CN202222959221.4U CN202222959221U CN218489895U CN 218489895 U CN218489895 U CN 218489895U CN 202222959221 U CN202222959221 U CN 202222959221U CN 218489895 U CN218489895 U CN 218489895U
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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
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Abstract
The utility model relates to the technical field of unmanned aerial vehicle equipment, aiming at solving the problems that the existing tail boom structure adopts a metal structure, more parts are arranged, mechanical connection is adopted between the parts, more connecting pieces are arranged, the connecting mode is complicated, and the manufacturing cost is high, and providing an unmanned aerial vehicle variable cross-section composite tail boom structure which comprises a left skin and a right skin, wherein the left skin and the right skin are composite material components, the left skin and the right skin are buckled to form a variable cross-section column body, one end with a larger cross-section area of the variable cross-section column body is connected with a front end frame, one end with a smaller cross-section area of the variable cross-section column body is connected with a tail end frame, and at least one middle frame is arranged inside the variable cross-section column body; the utility model provides a tail boom simple structure, part is small in quantity, light in weight, and is with low costs, and the assembly methods is simple, and assembly man-hour is short, and its intensity, bearing capacity still can satisfy the flight requirement.
Description
Technical Field
The utility model relates to an unmanned aerial vehicle equipment technical field particularly, relates to an unmanned aerial vehicle variable cross section combined material tail-stay structure.
Background
A tail boom is a component that connects the forward nacelle and the aft vertical tail of an aircraft. Conventional tail boom structure adopts metal construction, and its spare part is more, and adopts mechanical connection between the part, and the connecting piece is also more, if adopt the bolt of different models, rivet etc. to connect, and the connected mode is loaded down with trivial details, and manufacturing cost is high, and weight is heavier.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an unmanned aerial vehicle variable cross section combined material tail boom structure to what solve current tail boom structure and adopt is metal construction, and its spare part is more, and adopts mechanical connection between the part, and the connecting piece is also more, and connected mode is loaded down with trivial details, problem that manufacturing cost is high.
The utility model discloses a technical scheme who adopts following realizes:
the utility model provides an unmanned aerial vehicle variable cross section combined material tail-brace structure, including left covering and right covering, left side covering with right side covering is the combined material component, left side covering with right side covering is the lock joint mutually and forms the variable cross section cylinder, the great one end of variable cross section cylinder cross sectional area is connected with the front end frame, the less one end of variable cross section cylinder cross sectional area is connected with the tail end frame, the inside at least one middle frame that is equipped with of variable cross section cylinder.
The utility model discloses constitute the tail boom appearance with left covering and right covering lock, the tail boom appearance is the variable cross section cylinder, and the great one end of its cross-sectional area is connected with the front end frame, and the less one end of cross-sectional area is connected with the tail end frame, the front end frame is used for being connected with anterior nacelle, transmits all loads of tail boom, the tail end frame is used for being connected with rear portion vertical fin, the inside middle frame that still is provided with of variable cross section cylinder, middle with the tail end frame is used for keeping the tail boom appearance, provides support to the covering, improves the bearing capacity of covering.
The utility model discloses well left side covering and right covering are the combined material component, and it adopts combined material to make, and light in weight subtracts heavy effect obvious, and need not to use other connecting pieces, adopts to splice and can realize the connection between the component, has reduced the technology degree of difficulty, and the cost is reduced also can lighten weight simultaneously.
The utility model provides a tail boom simple structure, part is small in quantity, light in weight, and is with low costs, and the assembly methods is simple, and assembly man-hour is short, and its intensity, bearing capacity still can satisfy the flight requirement.
As a preferable technical scheme:
the left skin and the right skin are carbon fiber composite members.
As a preferable technical scheme:
the inner wall surfaces of the left skin and the right skin are provided with long honing, and the length direction of the long honing is the same as that of the left skin and that of the right skin.
The long honing is used for increasing the local rigidity of the skin and improving the stability of the skin.
As a preferred technical scheme:
the inner wall surfaces of the left skin and the right skin are provided with a plurality of long honing.
As a preferred technical scheme:
the long honing is arranged at the middle frame in a segmented mode.
As a preferred technical scheme:
the long honing is connected with the left skin and the right skin through glue joint.
The assembly and connection mode by adopting the gluing mode is simple, and additional connecting pieces are not needed.
As a preferable technical scheme:
the cross section of the long honing is L-shaped.
As a preferred technical scheme:
the long honing is a composite material member.
As a preferable technical scheme:
and the left skin and the right skin are connected in a bonding manner after being lapped.
As a preferable technical scheme:
the front end frame, the tail end frame and the middle frame are provided with a recess at the lap joint of the left skin and the right skin.
Because the overlapping part of the skins is thick, the position of the overlapping part of the skins is designed with a recess to ensure the attractive appearance of the tail boom.
As a preferable technical scheme:
the front end frame, the tail end frame, the middle frame, the left skin and the right skin are connected through glue joint.
As a preferred technical scheme:
and the tail end frame and the middle frame are provided with frame edge strips.
The supporting area of the skin is increased, and the bearing capacity of the skin is improved.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
the utility model discloses constitute the tail-stock appearance with left covering and right covering lock, the tail-stock appearance is the variable cross section cylinder, and the great one end of its cross-sectional area is connected with the front end frame, and the less one end of cross-sectional area is connected with the tail end frame, the front end frame is used for being connected with anterior nacelle, transmits all loads of tail-stock, the tail end frame is used for being connected with rear portion vertical tail, the inside middle frame that still is provided with of variable cross section cylinder, middle with the tail end frame is used for keeping the tail-stock appearance, provides support to the covering, improves the bearing capacity of covering.
The utility model discloses well left side covering and right covering are the combined material component, and it adopts combined material to make, and light in weight subtracts the heavy effect obvious, and need not to use other connecting pieces, adopts to splice and can realize the connection between the component, has reduced the technology degree of difficulty, and the cost is reduced also can the weight reduction simultaneously.
The utility model provides a tail boom simple structure, part is small in quantity, light in weight, and is with low costs, and the assembly methods is simple, and assembly man-hour is short, and its intensity, bearing capacity still can satisfy the flight requirement.
Drawings
Figure 1 is the structure schematic diagram of unmanned aerial vehicle variable cross section combined material tail boom structure.
Fig. 2 is an exploded view of the part of fig. 1.
Fig. 3 is a schematic view of the overlapping of the left skin and the right skin.
Fig. 4 is a schematic structural view of the skin panel according to the present invention.
Icon: 1-left skin, 2-long honing, 3-right skin, 4-front end frame, 5-second frame, 6-third frame, 7-tail end frame and 8-normal temperature glue.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
Example 1
As shown in fig. 1 and fig. 2, the present embodiment provides a variable cross-section composite tail boom structure for an unmanned aerial vehicle, including a left skin 1 and a right skin 3, the left skin 1 and the right skin 3 are symmetrically disposed and fastened to each other, so as to form a hollow variable cross-section column, where the variable cross-section column is a hollow structure and has openings at two ends.
The left skin 1 and the right skin 3 form a tail boom shape, bear aerodynamic loads distributed on the outer surface, bear shearing force brought by tail boom torsion, and are main components of torsional rigidity along the longitudinal axis.
The left skin 1 and the right skin 3 are composite material members which are integrally formed by composite materials. Preferably, a carbon fiber composite is used.
As shown in fig. 3, left covering 1 with adopt the normal atmospheric temperature to glue 8 after the overlap joint of right covering 3, in this embodiment, the surface of left covering 1 is equipped with sunkenly, will during the assembly right covering 3 overlap joint is in on the left covering 1 for reduce the thickness of overlap joint.
The cross-sectional area of the variable cross-section column body is uniformly changed, and the surface of the variable cross-section column body is smooth. The end with the larger cross-sectional area of the variable cross-section column body is connected with a front end frame 4, and the end with the smaller cross-sectional area of the variable cross-section column body is connected with a tail end frame 7. The front end frame 4 is used for bearing concentrated loads in a frame plane and distributed loads perpendicular to the frame plane, and the front end frame 4 is connected with the front nacelle and used for transferring all loads of the tail boom. The front end frame 4 is an aluminum alloy integral frame, a plurality of bolt holes are formed in the front end frame 4, and the front end frame 4 is connected with the front nacelle through bolts. The tail end frame 7 is connected with the rear vertical tail.
At least one middle frame is arranged inside the variable-section column body, and the middle frame and the tail end frame 7 are used for keeping the appearance of a tail support, supporting the skin and improving the bearing capacity of the skin. In this embodiment, two intermediate frames, namely a second frame 5 and a third frame 6, are arranged inside the variable cross-section column body at intervals.
The tail end frame 7 with be equipped with the frame border strip on the intermediate frame respectively, the frame border strip is perpendicular with the frame face, arranges in the framework round all around, and the framework is the [ "type with the cross-section that the frame border strip formed, the frame border strip is used for increasing the holding area to the covering, improves the bearing capacity of covering. The middle frame, the tail end frame 7 and the frame edge strips are integrally formed by composite materials. Preferably, a carbon fiber composite is used. In this embodiment, the tail end frame 7 increases the length of the rim strip to facilitate the connection of the rear vertical tail to the tail boom.
The inner wall surfaces of the left skin 1 and the right skin 3 are provided with a long honing 2, and the length direction of the long honing 2 is the same as that of the left skin 1 and that of the right skin 3. The long honing 2 is used for increasing the local rigidity of the skin and improving the stability of the skin. In this embodiment, the inner wall surfaces of the left skin 1 and the right skin 3 are respectively provided with two long honing 2, and the two long honing 2 are arranged on the skins at intervals. The long honing 2 is segmented at the middle frame, so that the middle frame is directly connected with the skin. In this embodiment, two long honing 2 are divided into three sections. The long honing 2 is a composite material member, and preferably, a carbon fiber composite material is adopted. The cross section of the long honing 2 is L-shaped, and one side of the L-shaped is directly connected with the inner wall of the skin.
The front end frame 4, the tail end frame 7 and the middle frame are all provided with a recess, and the positions of the recesses correspond to the lap joint positions of the left skin 1 and the right skin 3. Because the overlapping part of the skins is thick, a recess is designed at the overlapping position of the skins to ensure the attractive appearance of the tail boom.
Connection mode of each member:
left side covering 1 with right side covering 3 adopts the normal atmospheric temperature to glue and link to each other the two overlap joint, long honing 2 with left side covering 1 the contact surface of right side covering 3 adopts the normal atmospheric temperature to glue and splices, front end frame 4 tail end frame 7 the middle frame with left side covering 1 the contact surface of right side covering 3 adopts the normal atmospheric temperature to glue respectively and splices. The assembly and connection mode by adopting the gluing mode is simple, and additional connecting pieces are not needed.
The utility model discloses a light low-cost design, a plurality of components in the tail boom structure are the combined material component, and it adopts combined material to make, and light in weight subtracts the heavy effect obvious, and need not to use other connecting pieces, adopts to splice to realize the connection between the component, has reduced the technology degree of difficulty, and the assembly method is simple, and the raw materials cost is low, and assembly man-hour is short, the cost is reduced. Meanwhile, the strength and the bearing capacity of the aircraft can still meet the flight requirements by arranging reinforcing structures such as the middle frame and the long truss 2.
The assembly flow of tail boom structure include:
s1: respectively adopting composite materials to cure and mold the left skin 1, the right skin 3, the stringers, the middle frame and the tail end frame 7, increasing a certain thickness at the position of the skin needing a connecting frame during manufacturing, prefabricating the front end frame 4 of the aluminum alloy structure, and forming corresponding bolt holes in the front end frame 4;
s2: an upper long truss and a lower long truss are respectively arranged on the inner wall surfaces of a left skin 1 and a right skin 3, the long trusses 2 are cut off at the position of a middle frame, each long truss is divided into three sections, and the long trusses and the skins are glued and cured together through normal-temperature glue to form a skin wallboard, as shown in fig. 4;
s3: fixing the front end frame 4, the middle frame and the tail end frame 7 at specified positions, then buckling the two skin wall plates, and gluing the contact positions of the frames and the skins by adopting normal temperature glue;
s4: and overlapping the right skin 3 on the left skin 1, and gluing the overlapped part by adopting normal temperature glue.
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 (10)
1. The utility model provides an unmanned aerial vehicle variable cross section combined material tail boom structure which characterized in that:
the variable-cross-section column comprises a left skin and a right skin, wherein the left skin and the right skin are composite material components, the left skin and the right skin are buckled to form a variable-cross-section column body, the end with the large cross-sectional area of the variable-cross-section column body is connected with a front end frame, the end with the small cross-sectional area of the variable-cross-section column body is connected with a tail end frame, and at least one middle frame is arranged inside the variable-cross-section column body.
2. The unmanned aerial vehicle variable cross-section composite tail boom structure of claim 1, wherein:
the inner wall surfaces of the left skin and the right skin are provided with long honing, and the length direction of the long honing is the same as that of the left skin and that of the right skin.
3. The unmanned aerial vehicle variable cross-section composite tail boom structure of claim 2, wherein:
the inner wall surfaces of the left skin and the right skin are provided with a plurality of long honing.
4. The unmanned aerial vehicle variable cross-section composite tail boom structure of claim 2, wherein:
the long honing is arranged at the middle frame in a segmented mode.
5. The unmanned aerial vehicle variable cross-section composite tail boom structure of claim 2, wherein:
the long honing is connected with the left skin and the right skin through glue joint.
6. The unmanned aerial vehicle variable cross section combined material tail boom structure of claim 2, characterized in that:
the cross section of the long honing is L-shaped.
7. The unmanned aerial vehicle variable cross section combined material tail boom structure of claim 1, characterized in that:
and the left skin and the right skin are connected in a splicing manner after being lapped.
8. The unmanned aerial vehicle variable cross-section composite tail boom structure of claim 7, wherein:
the front end frame, the tail end frame and the middle frame are provided with depressions at the lap joint of the left skin and the right skin.
9. The unmanned aerial vehicle variable cross-section composite tail boom structure of any one of claims 1-8, wherein:
the front end frame, the tail end frame, the middle frame, the left skin and the right skin are connected through glue joint.
10. The unmanned aerial vehicle variable cross-section composite tail boom structure of claim 9, wherein:
and the tail end frame and the middle frame are provided with frame edge strips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222959221.4U CN218489895U (en) | 2022-11-07 | 2022-11-07 | Unmanned aerial vehicle variable cross section combined material tail-boom structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222959221.4U CN218489895U (en) | 2022-11-07 | 2022-11-07 | Unmanned aerial vehicle variable cross section combined material tail-boom structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218489895U true CN218489895U (en) | 2023-02-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222959221.4U Active CN218489895U (en) | 2022-11-07 | 2022-11-07 | Unmanned aerial vehicle variable cross section combined material tail-boom structure |
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| Country | Link |
|---|---|
| CN (1) | CN218489895U (en) |
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2022
- 2022-11-07 CN CN202222959221.4U patent/CN218489895U/en active Active
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