阅读说明：本技术 一种无人机的发动机吊挂结构 (Unmanned aerial vehicle's engine suspended structure ) 是由 李永福 张淑焕 朱启晨 于 2020-12-29 设计创作，主要内容包括：本发明属于飞机结构设计领域,涉及一种无人机的发动机安装结构。包括：吊挂前缘、吊挂盒段、发动机吊装前接头、发动机吊装后接头、吊挂与机翼对接段,其中,吊挂盒段、发动机吊装前接头以及吊挂与机翼对接段为一体结构,吊挂前缘包括倾斜段和水平段,吊挂前缘与吊挂盒段连接,发动机吊装前接头、发动机吊装后接头与发动机连接,吊挂前缘与发动机吊装前接头之间以及吊挂前缘与吊挂盒段之间形成管路电缆通道,发动机吊装后接头与吊挂盒段连接。解决了采用涡轮喷气发动机的无人机舱内空间不足和发动机维护性较差、更换发动机时操作空间不足的问题。(The invention belongs to the field of airplane structure design, and relates to an engine mounting structure of an unmanned aerial vehicle. The method comprises the following steps: the engine hoisting front connector and the engine hoisting rear connector are connected with the engine, pipeline cable channels are formed between the hoisting front edge and the engine hoisting front connector and between the hoisting front edge and the hoisting box section, and the engine hoisting rear connector is connected with the hoisting box section. The problems that the space in an unmanned cabin of the turbojet engine is insufficient, the engine is poor in maintainability, and the operation space is insufficient when the engine is replaced are solved.)

1. The utility model provides an unmanned aerial vehicle's engine suspended structure which characterized in that includes: hang leading edge (3), hang box section (4), engine hoist and mount front connector (5), engine hoist and mount rear connector (6), hang and wing butt joint section (7), wherein, hang box section (4), engine hoist and mount front connector (5) and hang and wing butt joint section (7) structure as an organic whole, hang leading edge (3) including slope section and horizontal segment, hang leading edge (3) and hang box section (4) and be connected, engine hoist and mount front connector (5), engine hoist and mount rear connector (6) and engine are connected, hang between leading edge (3) and engine hoist and mount front connector (5) and hang between leading edge (3) and hang box section (4) and form pipeline cable channel (8), engine hoist and mount rear connector (6) and hang box section (4) and be connected.

2. The engine suspension structure of claim 1, wherein the engine suspension front joint (5) structure is in the form of thrust diffusion.

3. The engine suspension structure of claim 2, wherein the engine suspension front joint (5) comprises a diffusing stud in the force transmission direction.

4. The engine hanger structure according to claim 2 wherein the hanger leading edge (3) is connected with the hanger box section (4) by a pallet self-locking nut and bolt or flap lock.

5. The engine suspension structure according to claim 1, wherein the engine suspension rear joint (6) is connected with the engine by a joint bearing for enabling the tail of the engine to make small-range deviation along the course.

6. The hanging structure of the engine as claimed in claim 1, wherein the engine hanging rear joint (6) is connected with the engine through a connecting rod for enabling the tail of the engine to swing at a small angle along the heading.

7. The engine pylon structure of claim 1 wherein the pylon and wing interface section (7) is a fairing package and the connecting bolts are disposed on the exterior of the pylon.

8. The engine suspension structure according to claim 3, wherein the engine suspension front joint (5) comprises at least two diffusion studs along the force transmission direction, and end ribs are arranged on the left and right sides of the end part of the channel (8).

Technical Field

The invention belongs to the field of airplane structure design, and relates to an engine mounting structure of an unmanned aerial vehicle.

Background

The unmanned aerial vehicle who adopts turbojet at present all arranges the engine inside the organism, has taken up valuable under-deck space, and the maintainability of engine is relatively poor, and the operation is inconvenient when changing the engine. In order to solve the above problem, a hanging structure for externally connecting an engine of the unmanned aerial vehicle is required.

Disclosure of Invention

The purpose of the invention is as follows: the unmanned aerial vehicle with the wing-mounted engine layout provides an engine hanging structure of the unmanned aerial vehicle, and solves the problems that the space in an unmanned cabin of the unmanned aerial vehicle adopting a turbojet engine is insufficient, the engine maintenance performance is poor, and the operation space is insufficient when the engine is replaced.

The technical scheme is as follows:

in a first aspect, an engine suspension structure of an unmanned aerial vehicle is provided, including: hang leading edge 3, hang box section 4, engine hoist and mount front connector 5, engine hoist and mount rear connector 6, hang and wing butt joint section 7, wherein, hang box section 4, engine hoist and mount front connector 5 and hang and wing butt joint section 7 structure as an organic whole, hang leading edge 3 and include slope section and horizontal segment, hang leading edge 3 and hang box section 4 and be connected, engine hoist and mount front connector 5, engine hoist and mount rear connector 6 and engine are connected, hang and form pipeline cable channel 8 between leading edge 3 and the engine hoist and mount front connector 5 and hang between leading edge 3 and the hanging box section 4, engine hoist and mount rear connector 6 and hang box section 4 and be connected.

Further, the structure of the front connector 5 for engine hoisting is in a thrust diffusion mode.

Further, the engine hoist front joint 5 comprises a diffusing stud in the force transfer direction.

Further, the hanging front edge 3 is connected with the hanging box section 4 through a supporting plate self-locking nut and a bolt or a cover lock.

Furthermore, the engine hoisting rear joint 6 is connected with the engine by adopting a joint bearing, and is used for enabling the tail of the engine to make small-range deviation along the course.

Furthermore, the engine hoisting rear connector 6 is connected with the engine through a connecting rod, and is used for enabling the tail of the engine to swing along the course at a small angle.

Further, the hanging and wing butt-joint section 7 is a rectification bag, and the connecting bolts are arranged outside the hanging.

Further, engine hoist and mount front connector 5 includes along at least two diffusion studs of biography power direction, is provided with the end rib in 8 tip left and right sides.

Has the advantages that:

the invention provides an engine hanging structure for an unmanned aerial vehicle with a wing-hung engine layout. A pipeline cable channel is reserved; the thrust of the engine is completely transmitted by the front joint; in order to counteract the influence of the thermal deformation of the engine, the rear joint can make small-range deviation or small-angle swing along the course. The hanging and wing butt bolts are arranged outside the hanging, so that the hanging and wing can be conveniently disassembled. To the characteristics of the little difficult connection of unmanned aerial vehicle size, with engine hoist and mount front connector, hang the box section and hang and the wing butt joint section fuses a part so that the installation.

Drawings

FIG. 1 is a schematic view of an engine mount structure according to an embodiment of the present invention;

FIG. 2 is an exploded view of an engine mount according to an embodiment of the present invention;

FIG. 3 is one embodiment of an engine hanger front sub of an engine hanger structure according to an embodiment of the present invention;

FIG. 4 shows another embodiment of an engine mount front adapter of an engine mount structure according to an embodiment of the present invention;

FIG. 5 is one embodiment of an engine hanger rear joint of an engine hanger structure according to an embodiment of the present invention;

FIG. 6 is another embodiment of an engine hanger rear joint of an engine hanger structure according to an embodiment of the invention;

FIG. 7 is a schematic structural diagram of a pylon-to-wing interface section of an engine pylon structure according to an embodiment of the invention.

The engine hanging device comprises a wing 1, a wing 2, an engine 3, a hanging front edge 4, a hanging box section 5, an engine hanging front connector 6, an engine hanging rear connector 7, a hanging and wing butt joint section 8 and a pipeline cable channel.

Detailed Description

In order to solve the problem, this patent provides an engine suspended structure for the unmanned aerial vehicle of wing crane engine overall arrangement.

As shown in figure 1, 1 is a wing, 2 is an engine, the engine 2 is connected to the wing 1 through a hanging structure, and the whole hanging of the invention is divided into five parts, namely a hanging front edge 3, a hanging box section 4, an engine hanging front joint 5, an engine hanging rear joint 6 and a hanging and wing butt joint section 7. Hang leading edge 3 and be thin covering detachable construction, through layer board auto-lock nut and bolt or flap lock with hang box section 4 and be connected, hang leading edge 3 and hang and reserve pipeline cable channel 8 between the box section 4. The hanging front edge 3 is removed as shown in fig. 2 to expose the reserved pipeline cable channel 8. To the characteristics of the unmanned aerial vehicle small in size and difficult in connection, the engine hoisting front connector 5, the hanging box section 4 and the hanging and wing butt joint section 7 are integrated into a whole so as to be convenient for installation.

The thrust of the engine is completely transmitted by the engine hoisting front joint 5, the front joint is provided with triangular vertical ribs along the course to diffuse the thrust, and two schemes are designed aiming at the thrust with different sizes. Wherein, fig. 3 is a general thrust scheme of the engine hoisting front connector. Fig. 4 is a thrust increasing scheme of a hoisting front connector of an engine, the number of studs and the thickness of connecting lugs are increased on the basis of the scheme in fig. 3, and end ribs are added to flanges connected with a hanging front edge to improve stability.

In order to counteract the influence of thermal deformation of the engine, two schemes are designed for a connector after the engine is hoisted, wherein in the scheme A in the figure 5, a joint bearing and an oblique pull rod are adopted to enable the tail part of the engine to be capable of carrying out small-range deviation along the course, and in the scheme B in the figure 6, a longitudinal pull rod is adopted to enable the tail part of the engine to be allowed to carry out small-angle swing along the course.

As shown in figure 7, the connection bolt is arranged outside the hanger on the butt-joint section 7 of the hanger and the wing, so that the hanger and the wing are very convenient to disassemble and assemble, and in order to reduce the influence on the flying quality, the rectifier package is additionally arranged outside the bolt and is directly fused with the hanger box section 4 into a whole. The connection bolt is arranged outside the hanger by adopting the design of the rectification bag at the butt joint section 7 of the hanger and the wing, and the hanger and the wing are very convenient to disassemble and assemble. To the characteristics of the little difficult connection of unmanned aerial vehicle size, with engine hoist and mount front connector, hang the box section and hang and the wing butt joint section fuses a part so that the installation.