Unmanned aerial vehicle steering engine mounting structure

Abstract

The utility model discloses an unmanned aerial vehicle steering engine installation structure which comprises an installation plate, a steering engine is installed on the installation plate through a fastener, the installation plate is installed on a wing skin through a fastener, and the outer surface of the installation plate is a pneumatic appearance surface and is of a curved surface structure. The structure is low in cost, an engine body structure is fully utilized, local reinforcement is achieved on the skin and the covering cap, steering engine installation and manufacturing are easy, cost is low, and assembling procedures are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned aerial vehicles (UAVs), and in particular to a UAV steering gear installation structure. Background Art

[0002] When a fixed-wing drone is in flight, servos control the rudder surfaces to achieve pitch, yaw, and roll attitude changes, enabling fly-by-wire control. Existing servos are mounted on the structure, with servo connectors designed to transfer the servo load to the structure. Alternatively, servos are attached to ribs inside the wing, requiring flaps on either side of the ribs. Due to the small size of drones and the limited internal space, installation is inconvenient and requires significant skill from the installer. Utility Model Content

[0003] The present invention aims to provide a UAV servo mounting structure to address the problems mentioned in the background art. To achieve this objective, the present invention provides the following technical solution: a UAV servo mounting structure comprising a mounting plate, to which a servo is mounted via fasteners. The mounting plate is mounted to a wing skin via fasteners, and the outer surface of the mounting plate is an aerodynamically contoured, curved surface.

[0004] Preferably, the mounting plate includes a mounting plate body, the outer surface of the mounting plate body is an aerodynamic shape surface, and is a curved surface structure. A thickened area is provided inside the mounting plate body, and the surface of the thickened area is flat.

[0005] Preferably, connecting holes are provided at the four corners of the thickened area, a servo mounting hole is provided in the middle, a rocker arm through-hole is opened in the middle of the mounting plate body, the servo is installed on the mounting plate through the servo mounting holes and fasteners, and the mounting plate is installed on the wing skin through the connecting holes and fasteners.

[0006] Preferably, the rocker arm through hole is a strip-shaped hole.

[0007] Preferably, the fastener comprises a countersunk fastener.

[0008] Preferably, the fastener connecting the servo and the mounting plate is a nut assembly, and the nut assembly includes a nut washer and a countersunk bolt.

[0009] Preferably, the fastener connecting the mounting plate and the wing skin is a support plate nut assembly, and the support plate nut assembly includes a countersunk bolt, a support plate nut and a rivet connecting the support plate nut.

[0010] The technical effects and advantages of the utility model are as follows: the structure has low cost: the structure of the fuselage is fully utilized, the skin and the cover are locally reinforced to realize the installation of the steering gear, the manufacturing is simple, the cost is low, and the assembly process is saved;

[0011] Good aerodynamic performance: countersunk fasteners maintain smooth outer surface;

[0012] Easy maintenance: the servo is directly installed on the cover, which is convenient for disassembly and maintenance;

[0013] Fewer parts: The support structure specifically for installing the servo is eliminated, reducing the number of parts;

[0014] Light weight: Through local reinforcement of the cover and the skin, the strength and rigidity requirements of the servo installation are met, and the structural weight is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is an axonometric drawing of the present utility model;

[0016] Figure 2 It is an exploded view of the utility model;

[0017] Figure 3 It is a partial enlarged view of the utility model;

[0018] Figure 4 This is an axonometric drawing of the mounting plate of the utility model;

[0019] Figure 5 This is a cross-sectional view of the connection between the mounting plate and the wing skin of the utility model;

[0020] Figure 6 This is a cross-sectional view of the connection between the steering gear and the mounting plate of the utility model.

[0021] In the figure, 1. Servo mounting structure; 11. Mounting plate; 111. Thickened area; 112. Mounting plate body; 113. Rocker arm through hole; 12. Servo; 13. Fastener; 131. Support plate nut assembly; 132. Nut assembly; 2. Wing; 21. Wing skin. DETAILED DESCRIPTION

[0022] In order to make the technical means for realizing the present invention, the creative features, the purpose and the effect easily understood, the present invention is further explained below in conjunction with specific diagrams. In the description of the present invention, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, an integral connection or a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be internal communication between two components.

[0023] Example

[0024] like Figure 1 、 Figure 2 and Figure 3As shown, the servo mounting structure 1 is installed on the wing 2 to control the ailerons at the trailing edge of the wing and change the attitude of the UAV during flight. This example takes the servo 12 mounting structure on the wing 2 as an example. In reality, the servo 12 is also installed on the tail wing of the UAV to control the rudder and elevator, and the structure is similar.

[0025] The servo mounting structure 1 includes a mounting plate 11, a servo 12, and fasteners 13. Fasteners 13 are used to mount the servo 12 to the mounting plate 11. Fasteners 13 are also used when the mounting plate 11 is attached to the wing 2. Fasteners 13 are removable, allowing for maintenance of the servo 12. The mounting plate 11 also serves as a cover and is attached to the wing skin 21 via fasteners 13. The wing skin 21 is recessed where it mates with the mounting plate 11, ensuring a smooth surface on the wing 2 after the mounting plate 11 is installed.

[0026] like Figure 4 As shown, the mounting plate 11 includes a mounting plate body 112. The outer surface of the mounting plate body 112 is an aerodynamically shaped curved surface. Inside the mounting plate body 112, a thickened area 111 is provided. This thickened area 111 serves as a connecting structure with a flat surface to facilitate the installation of the fastener 13 and ensure its secure installation. The connection with the servo 12 is also flat, ensuring the precision of the two planes' mating. The four thickened areas 111 effectively enhance the connection strength, effectively transmitting the forces generated by the servo 12 when controlling the control surface to the wing skin 21. The mounting plate body 112 is relatively thin, maintaining its outer shape and acting as a cover. A rocker arm through-hole 112 is provided in the middle of the mounting plate body 112. This is a slender, strip-shaped hole for the passage of the servo rocker arm, ensuring that the servo rocker arm does not interfere with the mounting plate 11 during movement and maintaining a certain safety clearance, in this example, 2 mm. The mounting plate 11 can be an aluminum alloy 3D printed part, an aluminum alloy machined part, or a carbon fiber composite material. In this example, it is a machined part of aluminum alloy 7075, and the heat treatment state is T7351.

[0027] like Figure 5 and Figure 6As shown, the fasteners 13 are all countersunk fasteners, which keep the outer shape of the mounting plate 11 smooth and reduce aerodynamic drag. The mounting plate 11 is connected to the wing skin 21 by a support plate nut assembly, which can be operated on one side. When the mounting plate 11 is installed, the servo 12 and the like are all sealed inside the wing, leaving no space to operate the fasteners 13 inside the wing 2. Therefore, a more expensive support plate nut assembly is used, including a countersunk bolt, a support plate nut and a rivet connecting the support plate nut, which meets the function of being able to be disassembled and installed on the outside of the wing 2 with a single-sided operation. The fastener 13 connecting the servo 12 and the mounting plate 11 is a nut assembly, which consists of a nut washer and a countersunk bolt. During installation, the servo 12 is first installed on the mounting plate 11, and then the entire assembly is installed on the wing skin 21. During disassembly, it is also necessary to disassemble the mounting plate 11 as a whole, and then remove the servo 12. The nut assembly is low in cost and has a simple installation process compared to the support plate nut assembly.

[0028] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A UAV servo mounting structure, comprising a mounting plate, characterized in that: A servo is mounted on the mounting plate via fasteners, and the mounting plate is mounted on the wing skin via fasteners. The outer surface of the mounting plate is an aerodynamic shape surface, which is a curved surface structure.

2. The UAV servo mounting structure according to claim 1, characterized in that: The mounting plate comprises a mounting plate body, the outer surface of the mounting plate body is an aerodynamic shape surface, and is a curved surface structure. A thickened area is provided inside the mounting plate body, and the surface of the thickened area is a plane.

3. The UAV steering gear mounting structure according to claim 2, characterized in that: The four corners of the thickened area are provided with connecting holes, the middle part is provided with a servo mounting hole, the middle part of the mounting plate body is provided with a rocker arm through-hole, the servo is installed on the mounting plate through the servo mounting holes and fasteners, and the mounting plate is installed on the wing skin through the connecting holes and fasteners.

4. The UAV servo mounting structure according to claim 3, characterized in that: The rocker arm through hole is a strip-shaped hole.

5. The UAV servo mounting structure according to claim 1, characterized in that: The fastener comprises a countersunk fastener.

6. The UAV steering gear mounting structure according to claim 5, characterized in that: The fastener connecting the servo and the mounting plate is a nut assembly, and the nut assembly includes a nut washer and a countersunk bolt.

7. The UAV steering gear mounting structure according to claim 5, characterized in that: The fastener connecting the mounting plate and the wing skin is a support plate nut assembly, and the support plate nut assembly includes a countersunk bolt, a support plate nut and a rivet connecting the support plate nut.

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