Composite wing unmanned aerial vehicle motor support structure and positioning tool

Abstract

The utility model relates to an unmanned plane technical field especially relates to a kind of composite wing unmanned plane motor support structure, including motor seat, the upper and lower of motor seat are provided with the motor mounting platform for installing motor, the motor mounting surface of motor mounting platform and fuselage plane have included angle, promote lift system performance, the left and right of motor seat are equipped with electrically controlled, the inside of motor seat is hollow structure, and the inside of motor seat is passed for the wire harness of motor, electrically controlled, the motor seat front and rear penetration, left and right penetration, can be fixed and maintained by front through slot to internal wire harness, the dismounting and overhaul of electrically controlled are convenient, so that the utility model has the advantages of good maintainability, the motor mounting surface of motor mounting platform and fuselage plane are kept 5 ° included angle, can improve the performance of lift system, meanwhile, the present application also has the advantages of good heat dissipation performance and good weight reduction effect, good safety and good torsional performance.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, and in particular to a motor support structure and positioning fixture for a composite wing UAV. Background Technology

[0002] Vertical takeoff and landing (VTOL) drones do not require dedicated runways for takeoff and landing, making them flexible and widely applicable. They are increasingly used in logistics, reconnaissance, power line inspection, and rescue.

[0003] The motor mount connects to the lift unit of the drone, providing the power for the drone's vertical take-off and landing. It should have high strength. The lift unit of the drone is an important power system and requires regular maintenance. Therefore, the motor mount that connects to the lift unit needs to facilitate maintenance of the lift unit, detect defects in a timely manner, and reduce maintenance costs.

[0004] Meanwhile, in the existing technology, when the motor is installed on the motor support, the motor mounting surface is horizontal, which prevents the performance of the lift system from being maximized. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a motor support structure and positioning tooling for a compound wing UAV, which has the advantages of good maintainability, good heat dissipation and weight reduction, good safety and torsional resistance, and can improve the performance of the lift system.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A motor support structure for a compound-wing unmanned aerial vehicle (UAV) includes a motor mount, with motor mounting platforms for mounting motors at both the top and bottom of the motor mount. The motor mounting surface of the motor mounting platform forms an angle with the fuselage plane to improve the performance of the lift system. ESCs are mounted on both the left and right sides of the motor mount. The interior of the motor mount is a hollow structure, and the wiring harnesses for the power supply motor and ESC pass through the interior of the motor mount.

[0008] Preferably, the motor mounting platform has a motor connection hole and a weight reduction hole.

[0009] Furthermore, the motor base has ESC mounting platforms on both the left and right sides for mounting ESCs, and each ESC mounting platform has an ESC connection hole.

[0010] Furthermore, the inner top and bottom walls of the motor base are equipped with reinforcing ribs, and the middle of the reinforcing ribs has a through hole that communicates with the weight reduction hole.

[0011] Furthermore, the front end of the motor mount has a through slot for the passage of wire harnesses, for inspecting the internal wire harnesses of the motor mount, and for reducing the weight of the motor mount.

[0012] Furthermore, the motor base has front weight reduction grooves at all four front corners.

[0013] Furthermore, the rear center of the motor mount is provided with a rear through slot for the wire harness to pass through and for reducing the weight of the motor mount.

[0014] Furthermore, the motor base has rear weight reduction holes on both sides of the rear end, and rear weight reduction grooves at the four corners of the rear end.

[0015] Furthermore, the motor mount is equipped with an anti-wear sleeve to prevent wire harness wear, and the motor mounting surface of the motor mounting platform has a 5° angle with the body plane.

[0016] A positioning fixture for a motor support structure of a compound-wing UAV is provided for positioning and installing a motor mount. It includes a positioning connector, a positioning pin, a motor hole-connector, a main positioning pin, and a locking component. The positioning connector is connected to the aircraft in an overall assembly fixture via the positioning pin. One end of the motor hole-connector is connected to the positioning connector, and the other end is a shaft structure. After the motor mount is installed on the shaft structure at the other end of the motor hole-connector, the main positioning pin is inserted from below, passing through the shaft structure and the bottom of the motor mount, and extending into the interior of the motor mount. Then, the locking component is used to fix the motor mount.

[0017] The beneficial effects of this utility model are:

[0018] The motor mount of this utility model is through the front and back, and through the left and right. The internal wiring harness can be fixed and maintained through the front through slot. The motor mount connects the motor at the top and bottom, and the ESCs at the left and right, which facilitates the disassembly, assembly and maintenance of the ESCs. Thus, this utility model has the advantage of good maintainability.

[0019] The motor mount adopts a cage-like structure. During vertical takeoff and landing, it utilizes the wind from the propeller for heat dissipation. During level flight, it can dissipate heat through the airflow of the UAV flying forward. It has good heat dissipation performance. The motor mount has slots and holes on multiple sides to minimize the weight of the parts. Thus, this utility model has the advantages of good heat dissipation performance and good weight reduction effect.

[0020] The motor mount adopts a cage-like structure with ESC connection platforms on both the left and right sides, which can effectively withstand the torque, tension and other loads of the UAV's vertical take-off and landing. It has high strength and good safety, thus giving this utility model the advantages of good safety and good torsional performance.

[0021] This invention maintains a 5° angle between the motor mounting surface of the motor mounting platform and the plane of the fuselage, which can improve the performance of the lifting system. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is an isometric view of a composite wing UAV motor support structure according to the present invention;

[0024] Figure 2 This is a schematic diagram of the rear end of a composite wing UAV motor support structure according to the present invention.

[0025] Figure 3 This is a schematic diagram of the internal structure of a composite wing UAV motor support according to the present invention;

[0026] Figure 4 This is a schematic diagram of the motor mounting surface of the motor mounting platform of this utility model;

[0027] Figure 5 This is a schematic diagram of the motor base of this utility model being positioned by the positioning fixture;

[0028] Figure 6 This is a schematic diagram from another perspective when the motor base of this utility model is positioned by the positioning fixture.

[0029] Figure 7 This is a partial structural diagram of the positioning tooling used in this application.

[0030] The markings in the diagram are as follows: 1. Motor mount; 101. Motor mounting platform; 1011. Motor connection hole; 1012. Weight reduction hole; 102. ESC mounting platform; 1021. ESC connection hole; 103. Reinforcing rib; 104. Front through slot; 105. Front weight reduction slot; 106. Rear through slot; 107. Rear weight reduction hole; 108. Rear weight reduction slot; 2. Positioning connector; 3. Positioning pin; 4. Motor hole-connector; 5. Main positioning pin; 6. Locking component. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0032] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0033] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0034] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0035] Example 1

[0036] Please see Figure 1-4 As shown, a motor support structure for a compound wing UAV includes a motor mount 1. The motor mount 1 adopts a cage-like structure. The preferred material for the motor mount 1 is 7075 aluminum alloy, and the preferred heat treatment state is T7351, which has high strength and rigidity. When the motor mount 1 bears the load of the lifting unit, it can maintain structural stability.

[0037] The motor mount 1 has motor mounting platforms 101 at both the top and bottom for mounting the motor. To improve the performance of the lifting system, the motor mounting surface of the motor mounting platform 101 maintains a 5° angle with the plane of the fuselage (e.g., ...). Figure 4 As shown in the figure, the upper motor mounting angle is -5° and the lower mounting angle is 5°. In this example, the included angle is controlled at 5°+ / -0.3.

[0038] ESCs are installed on both the left and right sides of the motor base 1. The interior of the motor base 1 is a hollow structure, and the wiring harnesses for the power supply motor and ESCs pass through the interior of the motor base 1.

[0039] The motor mounting platform 101 is provided with a motor connection hole 1011, which is used to install the motor of the lifting system, for example, by screw connection. Since the motor mounting surface of the motor mounting platform 101 maintains a 5° angle with the plane of the fuselage, the performance of the lifting system can be maximized.

[0040] like Figure 1 As shown, the motor base 1 has an ESC mounting platform 102 on both the left and right sides for mounting the ESC, and the ESC mounting platform 102 has an ESC connection hole 1021 for mounting the ESC of the lift system, for example, by screw connection.

[0041] The motor mount 1 is also subjected to torsional loads transmitted from the lift system (motor + blades). To increase the torsional resistance of the motor mount 1, reinforcing ribs 103 are designed on both the inner top and inner bottom walls of the motor mount 1. A through hole connected to the weight reduction hole 1012 is opened in the middle of the reinforcing rib 103, and the diameter of the through hole is equal to the diameter of the weight reduction hole 1012. By setting the weight reduction hole 1012, the weight of the motor mount 1 can be reduced. The weight reduction hole 1012 and the reinforcing rib 103 provide positioning / constraint holes for motor assembly. To ensure the accuracy of positioning, the tolerance of this hole is controlled within + / -0.08mm. In this example, the requirement for the hole is 15 + / -0.08mm.

[0042] The motor mounting platform 101 is also provided with weight reduction holes 1012. The front center of the motor base 1 is provided with a front through groove 104 for wire harness passage, for inspecting the internal wire harness of the motor base 1 and for reducing the weight of the motor base 1. The front four corners of the motor base 1 are provided with front weight reduction grooves 105. The rear center of the motor base 1 is provided with a rear through groove 106 for wire harness passage and for reducing the weight of the motor base 1. The rear two sides of the rear end of the motor base 1 are provided with rear weight reduction holes 107. The rear four corners of the rear end of the motor base 1 are provided with rear weight reduction grooves 108.

[0043] By providing slots and holes on multiple sides of the motor base 1, the motor base 1 can be made to run through the front and back and through the left and right sides. The internal wiring harness can be fixed and maintained through the front through slot 104. The motor base 1 connects the motor at the top and bottom and the ESC at the left and right sides, which facilitates the disassembly, assembly and maintenance of the ESC.

[0044] The motor mount 1 is equipped with anti-wear sleeves to prevent wire harness wear. Specifically, anti-wear sleeves are installed inside the front through groove 104 and the rear through groove 106. The anti-wear sleeves are made of rubber and are clipped around the front through groove 104 and the rear through groove 106. They are held in place by the elastic deformation of the soft rubber material. Under the action of the anti-wear sleeves, wire harness wear can be prevented, avoiding short circuit accidents caused by wire harness wear.

[0045] like Figure 5-7 As shown, a positioning fixture for a motor support structure of a compound wing UAV is used to position and install the motor mount 1, which can ensure the accurate installation of the motor mount 1, especially to ensure its 5° included angle, and to ensure the correct spatial position and angle of the motor mount 1.

[0046] The positioning fixture includes a positioning connector 2, a positioning pin 3, a motor hole-connector 4, a main positioning pin 5, and a locking component 6. The positioning connector 2 is connected to the aircraft in the overall assembly fixture via the positioning pin 3. One end of the motor hole-connector 4 is connected to the positioning connector 2, and the other end of the motor hole-connector 4 is a shaft structure. This shaft structure also forms a 5° angle with the aircraft plane, with the tolerance range controlled within + / -0.3°.

[0047] After the motor mount 1 is installed on the shaft structure at the other end of the motor hole-connector 4, the through holes of the weight reduction hole 1012 and the reinforcing rib 103 are connected to the round hole of the shaft structure. The main positioning pin 5 is inserted from the bottom through the shaft structure and the bottom of the motor mount 1 (the through holes of the weight reduction hole 1012 and the reinforcing rib 103) and extends into the interior of the motor mount 1. Then the locking piece 6 is used to fix the motor mount 1 to prevent the position and angle of the motor mount 1 from changing during the assembly of the motor or aircraft.

[0048] The motor base 1 is fixed by locking the locking member 6 and the main positioning pin 5 into the motor base 1. The locking member 6 and the main positioning pin 5 into the motor base 1 are locked by means including but not limited to threaded connection. The inner diameter of the through hole opened in the weight reduction hole 1012 and the reinforcing rib 103 matches the outer diameter of the main positioning pin 5, which can prevent the motor base 1 from being positioned inaccurately.

[0049] In summary, the motor base 1 of this utility model is through the front and back and through the left and right sides. The internal wiring harness can be fixed and maintained through the front through slot 104. The motor base 1 connects the motor at the top and bottom and the ESC at the left and right sides, which facilitates the disassembly, assembly and maintenance of the ESC. Thus, this utility model has the advantage of good maintainability.

[0050] The motor mount 1 adopts a cage-like structure. During vertical take-off and landing, it uses the wind from the propeller for heat dissipation. During level flight, it can be cooled by the airflow of the UAV flying forward. It has good heat dissipation performance. The motor mount 1 has slots and holes on multiple sides to minimize the weight of the parts. Thus, this utility model has the advantages of good heat dissipation performance and good weight reduction effect.

[0051] The motor mount 1 adopts a cage-like structure with an ESC connection platform on both the left and right sides, which can effectively withstand the torque, tension and other loads of the UAV's vertical take-off and landing. It has high strength and good safety, thus giving this utility model the advantages of good safety and good torsional performance.

[0052] This invention maintains a 5° angle between the motor mounting surface of the motor mounting platform 101 and the plane of the fuselage, which can improve the performance of the lifting system.

[0053] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A motor support structure for a compound-wing unmanned aerial vehicle, characterized in that, include: The motor base (1) is provided with a motor mounting platform (101) for mounting the motor on both the top and bottom. The motor mounting surface of the motor mounting platform (101) has an angle with the plane of the fuselage to improve the performance of the lifting system. The motor base (1) is equipped with an electric speed controller on both the left and right sides. The motor base (1) has a hollow structure inside, and the wiring harness of the motor and the electric speed controller passes through the inside of the motor base (1).

2. The composite wing UAV motor support structure according to claim 1, characterized in that, The motor mounting platform (101) is provided with a motor connection hole (1011) and a weight reduction hole (1012).

3. The composite wing UAV motor support structure according to claim 1, characterized in that, The motor base (1) has an ESC mounting platform (102) for mounting an ESC on both the left and right sides, and the ESC mounting platform (102) has an ESC connection hole (1021).

4. The composite wing UAV motor support structure according to claim 1, characterized in that, The inner top wall and inner bottom wall of the motor base (1) are both equipped with reinforcing ribs (103), and the middle part of the reinforcing ribs (103) is provided with a through hole that communicates with the weight reduction hole (1012).

5. The composite wing UAV motor support structure according to claim 1, characterized in that, The front end of the motor mount (1) is provided with a front through groove (104) for wire harness passage, for inspecting the internal wire harness of the motor mount (1), and for reducing the weight of the motor mount (1).

6. The composite wing UAV motor support structure according to claim 1, characterized in that, The motor base (1) has front weight reduction grooves (105) at the four corners of its front end.

7. The composite wing UAV motor support structure according to claim 1, characterized in that, The motor mount (1) has a rear through groove (106) in the middle of its rear end for the wire harness to pass through and for reducing the weight of the motor mount (1).

8. The composite wing UAV motor support structure according to claim 1, characterized in that, The motor base (1) has rear weight reduction holes (107) on both sides of the rear end, and rear weight reduction grooves (108) at the four corners of the rear end.

9. The composite wing UAV motor support structure according to claim 1, characterized in that, The motor mount (1) is equipped with an anti-wear sleeve to prevent wire harness wear, and the motor mounting surface of the motor mounting platform (101) has a 5° angle with the body plane.

10. A positioning fixture for a motor support structure of a compound-wing unmanned aerial vehicle, used for positioning and installing the motor mount (1) as described in any one of claims 1-9, characterized in that, The assembly includes a positioning connector (2), a positioning pin (3), a motor hole-connector (4), a main positioning pin (5), and a locking member (6). The positioning connector (2) is connected to the aircraft in the overall assembly fixture via the positioning pin (3). One end of the motor hole-connector (4) is connected to the positioning connector (2), and the other end of the motor hole-connector (4) is a shaft structure. After the motor seat (1) is installed on the shaft structure at the other end of the motor hole-connector (4), the main positioning pin (5) is inserted from the bottom through the shaft structure and the bottom of the motor seat (1) and extends into the interior of the motor seat (1). Then, the locking member (6) is used to fix the motor seat (1).

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