阅读说明：本技术 一种翼身结合接头及无人机 (Wing body combines to connect and unmanned aerial vehicle ) 是由 王刚 尚晓冬 孙亚东 崔瑞芹 王红梅 于 2020-12-23 设计创作，主要内容包括：本发明公开了一种用于无人机机翼与机身连接的翼身结合接头及无人机,包括：翼身结合接头主体、翼身结合接头衬套、机身接头主体、机身接头衬套,其中：连接至机翼的翼身结合接头主体与连接至机身的机身接头主体通过螺栓和螺母及垫圈经由螺栓孔连接。本发明采用水平连接螺栓布置,结构简单,拆装方便,机翼外型高度没有限制,可实现连接螺栓间距提高100％以上,接头承载能力提高70％。(The invention discloses a wing body combining joint for connecting wings and a body of an unmanned aerial vehicle and the unmanned aerial vehicle, wherein the wing body combining joint comprises: the wing body combines to connect main part, wing body combines to connect bush, fuselage to connect main part, fuselage to connect the bush, wherein: the wing body joint body connected to the wing and the fuselage joint body connected to the fuselage are connected via bolt holes by bolts and nuts and washers. The invention adopts horizontal connecting bolts for arrangement, has simple structure and convenient assembly and disassembly, has no limitation on the external height of the wing, can realize the increase of the distance between the connecting bolts by more than 100 percent and the bearing capacity of the joint by 70 percent.)

1. A wing body joint, comprising:

-a wing body joint body (1, 2) connected to a wing and its corresponding wing body joint bushing (3, 4), wherein the wing body joint bushing (3, 4) is located in a first bolt hole (5, 6) and a second bolt hole (7, 8) of the wing body joint body (1, 2), wherein the first bolt hole (5, 6) and the second bolt hole (7, 8) are arranged in a horizontal direction along the wing body joint body (1, 2);

-a fuselage joint body (9) connected to a fuselage and its corresponding fuselage joint bushing (10), wherein the fuselage joint bushing (10) is located in a third bolt hole (11) and a fourth bolt hole (12) of the fuselage joint body (9), wherein the third bolt hole (11) and the fourth bolt hole (12) are arranged in a horizontal direction along the fuselage joint body (9);

the wing body joint body (1, 2) and the fuselage joint body (9) are connected by means of a bolt (14), a nut (15) and a washer (13) via the first bolt hole (5, 6) and the third bolt hole (11) and via the second bolt hole (7, 8) and the fourth bolt hole (12), respectively.

2. The wing body bonded joint according to claim 1, characterized in that the wing body bonded joint body (1, 2) comprises a first upper bead (16), a first back plate (18) and a first lower bead (17) which are integrally formed and perpendicular to each other, the first bolt hole (5, 6) and the second bolt hole (7, 8) being located at a vertical midpoint of the first back plate (18).

3. The wing body joint according to claim 2, characterized in that a recess (19) is provided in the first back plate (18) at the horizontal midpoint of the first bolt hole (5, 6) and the second bolt hole (7, 8), wherein the depth of the recess (19) is one half of the thickness of the first back plate (18).

4. The wing body joint according to claim 2, characterized in that the first upper edge strip (16) and the first lower edge strip (17) are each one-sided turned-up, the width of which gradually widens from the connection of the fuselage end to the second bolt hole (7, 8) and remains constant from the second bolt hole (7, 8) to the connection of the wing end.

5. The wing-body joint according to any one of claims 1 to 4, characterized in that the fuselage joint body (9) comprises a second upper bead (20), a second back plate (22) and a second lower bead (21) which are integrally formed and perpendicular to each other, the third bolt hole (11) and the fourth bolt hole (12) being located at the midpoint of the second back plate (22) in the vertical direction.

6. The wing body joint according to claim 5, characterized in that a step (24) is provided around the third bolt hole (11) and the fourth bolt hole (12) on the second back plate (22), wherein the height of the step (24) is half of the thickness of the second back plate (22).

7. The wing body joint according to claim 5, wherein the second upper bead (20) and the second lower bead (21) are each double-sided hemmed flanges, the width of which gradually widens from the connection with the wing end to the third bolt hole (11), and the width of the second upper bead (20) is constant from the third bolt hole (11) to the connection with the fuselage end, and the width of the second lower bead (21) is constant from the fourth bolt hole (12) to the connection with the fuselage end.

8. The wing-body joint according to claim 5, characterized in that the fuselage joint body (9) further comprises a guide strip (23) perpendicular to the second upper bead (20), the guide strip (23) being triangular in shape with a height that gradually increases from the wing end to the fuselage end.

9. The wing body coupling joint according to claim 8, characterized in that the angle of inclination of the guide strip (23) is the same as the angle of inclination of the second upper rim strip (20).

10. A drone, characterized in that it comprises a fuselage-coupling joint according to any one of claims 1 to 9.

Technical Field

The invention belongs to the field of unmanned aerial vehicle facilities, and particularly relates to a wing body combined joint for connecting wings and a fuselage of an unmanned aerial vehicle and the unmanned aerial vehicle.

Background

In the design of modern medium and large unmanned aerial vehicles, in order to satisfy the packing transportation needs, the wing adopts the scheme of dismantling more. The connection between the fuselage and the wing is usually realized by an upper lug and a lower lug of a wing joint.

However, in the thin airfoil condition, the space is limited, which results in insufficient load bearing capacity of the upper and lower tabs.

In addition, if use thicker auricle, perhaps use schemes such as many auricles to carry out the reinforcement, then can cause unmanned aerial vehicle structure complicacy, weight gain, the dismouting difficulty influences unmanned aerial vehicle wholeness ability.

Disclosure of Invention

The invention aims to solve the technical problem that the wing body joint for connecting the wing and the fuselage of the unmanned aerial vehicle and the unmanned aerial vehicle aim to solve the problem that the bearing capacity of the wing body joint is insufficient due to the limitation of the space size.

In order to achieve the purpose, the technical scheme of the invention is realized as follows:

according to one aspect of the invention, there is provided a wing-body joint for connecting a wing of an unmanned aerial vehicle to a fuselage, comprising: the wing body combines to connect main part, wing body combines to connect bush, fuselage to connect main part, fuselage to connect the bush, wherein: the wing body joint main body is connected to a wing, the wing body joint bushing is positioned in a first bolt hole and a second bolt hole of the wing body joint main body, and the first bolt hole and the second bolt hole are arranged in the horizontal direction along the wing body joint main body; the machine body joint main body is connected to a machine body, the machine body joint bushing is positioned in a third bolt hole and a fourth bolt hole of the machine body joint main body, and the third bolt hole and the fourth bolt hole are arranged in the horizontal direction along the machine body joint main body; the wing body joint main body is connected with the fuselage joint main body through a bolt, a nut and a washer respectively through a first bolt hole and a third bolt hole and through a second bolt hole and a fourth bolt hole.

Preferably, the wing body joint main body comprises a first upper edge strip, a first back plate and a first lower edge strip which are integrally formed and perpendicular to each other, and the first bolt hole and the second bolt hole are located at the vertical midpoint of the first back plate.

Preferably, a groove is arranged at the midpoint of the first bolt hole and the second bolt hole in the horizontal direction on the first back plate, and is used for reducing the weight of the wing body combining joint, wherein the depth of the groove is one half of the thickness of the first back plate.

Preferably, the first upper edge strip and the first lower edge strip are both single-side turned-ups, the width of the first upper edge strip and the width of the first lower edge strip are gradually widened from the end connected with the fuselage to the second bolt holes 7 and 8, and the width of the first upper edge strip and the width of the first lower edge strip are kept constant from the second bolt holes 7 and 8 to the end connected with the wing.

Preferably, the body joint body includes a second upper bead, a second back plate and a second lower bead which are integrally formed and perpendicular to each other, and the third bolt hole and the fourth bolt hole are located at a midpoint of a vertical direction of the second back plate.

Preferably, the second upper and lower flanges are double-sided flanges, the width of each flange gradually increases from the end connected to the wing to the third bolt hole 11, the width of the second upper flange 20 remains constant from the third bolt hole 11 to the end connected to the fuselage, and the width of the second lower flange 21 remains constant from the fourth bolt hole 12 to the end connected to the fuselage.

Preferably, a step portion is arranged around the third bolt hole and the fourth bolt hole on the second back plate, and positioning is performed when the wing body joint main body is assembled and butted with the fuselage joint main body, wherein the height of the step portion is half of the thickness of the second back plate 22.

Preferably, the fuselage connector body further comprises a guide strip perpendicular to the second upper edge strip, the guide strip is triangular, the height of the guide strip gradually increases from the side close to the wing to the side close to the fuselage, the inclination angle of the guide strip is the same as that of the second upper edge strip, and guiding and load transferring are provided when the wing body is assembled and butted with the fuselage connector body.

Preferably, wing body joint bush, fuselage joint bush all establish to take the shoulder structure for improve the bearing capacity of bolt hole, wing body joint bush all adopts interference fit to fix with first bolt hole and second bolt hole and fuselage joint bush and third bolt hole and fourth bolt hole.

Preferably, the wing body joint main body 1 and the wing body joint main body 2 are matched for use, and the width of the back plate of the wing body joint main body 1 is smaller than that of the back plate of the wing body joint main body 2 and is matched with the appearance of the wing.

In another aspect the invention provides a drone comprising a fuselage-engaging joint for connecting a wing to a fuselage as described above.

By adopting the technical scheme, compared with the prior art, the invention has the following beneficial effects: due to the fact that the horizontal connecting bolts are arranged, the distance between the bolt holes and the aperture are increased, the external height of the wing is not limited, the distance between the connecting bolts can be improved by more than 100%, and the bearing capacity of the joint is improved by more than 70%.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:

FIG. 1 is a schematic view of the overall structure of a wing body bonded joint according to an embodiment of the invention;

FIG. 2 is an exploded view of a wing body attachment joint according to an embodiment of the present invention;

FIG. 3 is an elevation view of a wing body attachment joint configuration according to an embodiment of the present invention; and

fig. 4 is a sectional view in the direction a-a of fig. 3.

Labeled as:

1. wing body combined joint main body 1

2. Wing body joint main body 2

3. Wing body joint bush 3

4. Wing body joint bush 4

5. First bolt hole 5

6. First bolt hole 6

7. Second bolt hole 7

8. Second bolt hole 8

9. Fuselage connector body

10. Fuselage connects bush

11. Third bolt hole

12. Fourth bolt hole

13. Gasket ring

14. Bolt

15. Nut

16. First upper edge strip

17. First lower edge strip

18. First backboard

19. Groove

20. Second upper edge strip

21. Second lower edge strip

22. Second backboard

23. Guide strip

24. Step part

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following embodiments and the accompanying drawings.

The embodiment of the invention discloses a wing body combining joint, which is shown in figures 1 to 2 and comprises: wing body joint main part 1,2, wing body joint bush 3, 4, fuselage joint main part 9, fuselage joint bush 10, wherein: the wing body joint bushing 3, 4 is located in the first bolt hole 5, 6 and the second bolt hole 7, 8 of the wing body joint body 1, 2; the fuselage joint bushing 10 is located in the third bolt hole 11 and the fourth bolt hole 12 of the fuselage joint body 9; the wing body joint body 1,2 and the fuselage joint body 9 are connected by means of bolts 14 and nuts 15 and washers 13 via the first bolt holes 5, 6 and the third bolt hole 11 and via the second bolt holes 7, 8 and the fourth bolt hole 12, respectively.

In the related art, the connection between the fuselage and the wing is usually realized by an upper lug and a lower lug. Under the condition of thin airfoil, the bearing capacity of the upper lug and the lower lug is insufficient due to limited space.

In the embodiment of the invention, as shown in fig. 2, the first bolt holes 5, 6 and the second bolt holes 7, 8 are respectively arranged on the wing body combining joint main bodies 1,2 along the horizontal direction, the third bolt hole 11 and the fourth bolt hole 12 are correspondingly arranged on the wing body joint main body 9, and the wing body combining joint main bodies 1,2 are horizontally connected with the wing body joint main body 9 through the bolt 14, the nut 15 and the washer 13, so that horizontal transmission of heading load is effectively realized. Correspondingly, the distance between the first bolt holes 5 and 6 and the second bolt holes 7 and 8 and the aperture of each bolt hole are increased, the external height of the wing is not limited, the spacing of the connecting bolts can be increased by more than 100%, and the bearing capacity of the joint is increased by more than 70%.

According to an embodiment of the present invention, the wing body joint main body 1,2 further includes a first upper bead 16, a first back plate 18, and a first lower bead 17 which are integrally formed and perpendicular to each other, the first bolt hole 5, 6 and the second bolt hole 7, 8 are located at a vertical midpoint of the first back plate 18, and the second bolt hole 7, 8 is located at a horizontal midpoint of the first back plate 18, a distance between the first bolt hole 5, 6 and the second bolt hole 7, 8 is one third of a back plate length of the wing body joint main body 1, 2. In the embodiment, the positions of the first bolt holes 5 and 6 and the second bolt holes 7 and 8 are arranged, and the distance between the bolt holes is set, so that the heading load is effectively borne, and the effects of high utilization rate of the wing body combined joint structure and good force transmission route are achieved.

According to the embodiment of the invention, as shown in fig. 1 to 3, a groove 19 is arranged at the middle point of the horizontal direction of the first bolt holes 5, 6 and the second bolt holes 7, 8 on the first back plate 18 of the wing body combining joint main bodies 1,2, and the weight of the wing body combining joint can be reduced by arranging the groove 19, wherein the depth of the groove 19 is half of the thickness of the first back plate 18, the length of the groove 19 is one sixth of the length of the first back plate 18 of the wing body combining joint main bodies (1, 2), and the height of the groove 19 is one half of the height of the first back plate 18 of the wing body combining joint main bodies (1, 2). In the embodiment, the position, the length, the height and the depth of the groove 19 are set, so that the strength and the rigidity of the wing body combined joint are ensured, and meanwhile, the weight is reduced.

According to the embodiment of the invention, as shown in fig. 1 to 4, the first upper edge strip 16 and the first lower edge strip 17 on the wing body combining joint main bodies 1 and 2 are both single-side turned-up edges, the width of the first upper edge strip and the first lower edge strip is gradually widened from one end of the connecting body to the second bolt holes 7 and 8, and the width of the first upper edge strip and the first lower edge strip is kept constant from the second bolt holes 7 and 8 to one end of the connecting wing. In the embodiment, the first upper edge strip 16 and the first lower edge strip 17 are arranged and used for transmitting the course load and providing guidance when the wing body is assembled and butted with the joint main bodies 1 and 2 and the fuselage joint main body 9, so that the wing body is convenient and quick to install.

According to the embodiment of the present invention, as shown in fig. 2, the body joint main body 9 includes the second upper bead 20, the second back plate 22, and the second lower bead 21 which are integrally formed and perpendicular to each other, and the third bolt hole 11 and the fourth bolt hole 12 are located at the vertical midpoint of the second back plate 22 and are provided corresponding to the first bolt holes 5, 6 and the second bolt holes 7, 8 of the body joint main bodies 1, 2. The second upper bead 20 and the second lower bead 21 are both double-sided hems, the width of which gradually widens from the end of the connecting wing to the third bolt hole 11, the width of the second upper bead 20 remains constant from the third bolt hole 11 to the end of the connecting fuselage, and the width of the second lower bead 21 remains constant from the fourth bolt hole 12 to the end of the connecting fuselage.

According to the embodiment of the invention, as shown in fig. 2, a step part 24 is arranged around the third bolt hole 11 and the fourth bolt hole 12 on the second back plate 22 of the body joint main body 9, wherein the height of the step part 24 is one half of the thickness of the second back plate 22. In this embodiment, the step 24 is provided to quickly position the wing body when the joint bodies 1 and 2 are assembled and butted with the body joint body 9.

According to the embodiment of the invention, as shown in fig. 1 to 2, the fuselage joint main body 9 further includes a guide strip 23 perpendicular to the second upper edge strip 20, the guide strip 23 is triangular, the height of the guide strip 23 gradually increases from a side close to the wing to a side close to the fuselage, the inclination angle of the guide strip is the same as that of the second upper edge strip 20, and guiding, convenient and fast installation and heading load transfer are provided when the wing body is assembled and butted with the fuselage joint main body 9 in combination with the joint main bodies 1 and 2.

According to the embodiment of the invention, as shown in fig. 2, the wing body joint bushing 3, 4 and the fuselage joint bushing 10 are respectively designed to be in a shouldered structure for improving the bearing capacity of the bolt holes, the wing body joint bushing 3, 4 and the first bolt holes 5, 6 and the second bolt holes 7, 8 as well as the fuselage joint bushing 10 and the third bolt hole 11 and the fourth bolt hole 12 are fixed in an interference fit manner, and the sizes of the wing body joint bushing 3, 4 and the fuselage joint bushing 10 are respectively matched with the sizes of the bolt holes on the wing body joint main body 1,2 and the fuselage joint main body 9. In this embodiment, the wing body joint main bodies 1 and 2 respectively have two bolt holes, and can be respectively matched with two wing body joint bushings to be fixed in interference fit with the bolt holes on the wing body joint main bodies 1 and 2. The body joint main body 9 has two bolt holes, and can be fixed by matching two body joint bushings 10 with the bolt holes on the body joint main body 9 in an interference fit manner.

According to the embodiment of the invention, as shown in fig. 2, the wing body combining joint main body 1 and the wing body combining joint main body 2 are used in a matching way, and the height of the back plate of the wing body combining joint main body 1 is smaller than that of the back plate of the wing body combining joint main body 2, so as to match the appearance of the wing.

In addition, this embodiment still provides an unmanned aerial vehicle, combines to connect including the wing body that is used for wing and fuselage to be connected.

The working principle of the invention is as follows: the wing loads are transferred through the wing body joint to the bolts and further to the fuselage joints, through which they are finally spread and transferred to the fuselage structure. Through the bolt of arranging at wing body combination joint main part upper level, avoid receiving the restriction of airfoil profile height in vertical direction, effectively utilize the span of wing to the space, the bolt span increases, and bearing capacity strengthens.

By adopting the technical scheme, compared with the prior art, the invention has the following beneficial effects: due to the fact that the horizontal connecting bolts are arranged, the bolt hole distance and the bolt hole diameter are increased, the external height of the wing is not limited, the connecting bolt distance can be improved by more than 100%, and the bearing capacity of the joint is improved by more than 70%.

The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.