Lightweight unmanned aerial vehicle arm

Abstract

The utility model discloses a light-weight unmanned aerial vehicle arm which aims at solving the problems that in the prior art, an unmanned aerial vehicle arm and a cabin where a motor is installed need to be additionally connected through bolts, the overall weight of an unmanned aerial vehicle can be increased due to the fact that the bolts are additionally used for connection, and the cruising ability of the unmanned aerial vehicle is affected. The light-weight unmanned aerial vehicle arm comprises a vehicle arm body, and a cavity is formed in the vehicle arm body and used as an electric adjusting bin; the motor cabin is fixedly connected with the vehicle arm, and the motor cabin and the vehicle arm are manufactured by adopting an integral forming preparation method; and the lining and the locking ring are used for connecting the vehicle arm with a vehicle body of the unmanned aerial vehicle. The cavity formed in the vehicle arm is used as the electric adjusting cabin, and the motor cabin is communicated with the vehicle arm, so that the vehicle arm, the electric adjusting cabin and the motor cabin are integrally formed, the internal space of a vehicle body of the unmanned aerial vehicle can be saved, the use of bolts is reduced, and the overall weight of the vehicle arm is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of unmanned aerial vehicles, and particularly relates to a lightweight unmanned aerial vehicle arm. Background Art

[0002] An unmanned aerial vehicle is a general term for an unpiloted aircraft, which is equipped with an autopilot, a program control device and other equipment, and can track and position a flying device through a ground station or an operator. Compared with a manned aircraft, it has the advantages of small size, low cost, convenient use, etc. It can take off vertically under radio control. When recovering, it can land automatically and can be used repeatedly. Unmanned aerial vehicles are widely used in related tasks such as pesticide spraying, aerial photography, and disaster monitoring.

[0003] At present, the structures of most unmanned aerial vehicle arm devices on the market are relatively complex. An additional bolt connection is required between the arm and the chamber for installing the motor. Using an additional bolt connection will increase the overall weight of the unmanned aerial vehicle and affect the endurance of the unmanned aerial vehicle. Content of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide a lightweight unmanned aerial vehicle arm, which aims to solve the problem that an additional bolt connection is required between the arm of the unmanned aerial vehicle and the chamber for installing the motor in the prior art. Using an additional bolt connection will increase the overall weight of the unmanned aerial vehicle and affect the endurance of the unmanned aerial vehicle.

[0006] (2) Technical Solutions

[0007] To solve the above technical problems, the utility model provides such a lightweight unmanned aerial vehicle arm, which includes:

[0008] An arm, in which a cavity is opened, and the cavity is used as an ESC (Electronic Speed Controller) chamber;

[0009] A motor chamber, which is fixedly connected to the arm and is made by an integral molding preparation method;

[0010] A lining and a locking ring, which are used for connecting the arm to the fuselage of the unmanned aerial vehicle.

[0011] Preferably, the cavity of the arm is communicated with the inside of the motor chamber.

[0012] Furthermore, one end of the arm away from the motor chamber is used for connecting to the fuselage of the unmanned aerial vehicle.

[0013] Even further, the lining is installed inside one end of the arm away from the motor chamber, and the locking ring is installed outside one end of the arm away from the motor chamber.

[0014] Furthermore, a plurality of mounting plates are fixedly connected to the inner wall of the bottom end of the motor cabin, and a motor mounting plate is mounted on the plurality of mounting plates by screws, and a motor is mounted on the motor mounting plate by screws.

[0015] Furthermore, a support plate is fixedly connected to the inner wall of the top end of the motor cabin, a gasket is mounted on the support plate by screws, a turntable is arranged above the gasket, a connecting cylinder is fixedly connected to the middle of the upper surface of the turntable, and a fixing piece is sleeved outside the connecting cylinder.

[0016] Furthermore, the output shaft of the motor sequentially penetrates through the support plate and the gasket from bottom to top and extends into the shaft hole opened on the turntable, and the output shaft of the motor is fixedly connected to the shaft hole opened on the turntable.

[0017] Furthermore, a fan blade is mounted between the fixing piece and the turntable.

[0018] Beneficial effects

[0019] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0020] The cavity opened inside the arm of the present utility model is used as an ESC compartment, and the motor cabin is communicated with the arm, so that the arm, the ESC compartment and the motor cabin are integrally formed, which can save the internal space of the UAV fuselage, reduce the use of bolts, reduce the overall weight of the arm, reduce the impact on the endurance of the UAV, and at the same time, since the arm, the ESC compartment and the motor cabin are integrally formed into a whole module, the installation or disassembly steps of the whole UAV are simplified. Description of the drawings

[0021] Figure 1 is a three-dimensional schematic diagram of the present utility model.

[0022] Figure 2 is a bottom view schematic diagram of the present utility model.

[0023] Figure 3 is a schematic diagram of the structure of the motor cabin of the present utility model.

[0024] The marks in the drawings are: 1, arm; 2, motor cabin; 11, inner lining; 12, locking ring; 21, mounting plate; 22, motor mounting plate; 23, fan blade; 24, support plate; 25, gasket; 26, turntable; 27, connecting cylinder; 28, fixing piece. Specific embodiments

[0025] This specific embodiment is a lightweight UAV arm, and its structural schematic diagram is as Figures 1 - 3 shown.

[0026] The lightweight UAV arm includes:

[0027] The arm 1 has a cavity formed inside it, and the cavity formed in the arm 1 can be used as an ESC compartment.

[0028] The motor compartment 2 is fixedly connected to the arm 1 and is made by an integrally formed manufacturing method. By integrally forming the motor compartment 2 and the robotic arm 1, bolts are no longer used at the connection between the motor compartment 2 and the arm 1. After removing the bolts at this location, the structure on the arm 1 of the present utility model is reduced, the structure of the arm 1 is simple, and thus the overall weight of the arm 1 is reduced, having certain advantages in lightweight design.

[0029] The cavity of the arm 1 is connected to the inside of the motor compartment 2. A cavity is formed inside the arm 1, and this cavity can be used as an ESC compartment. Moreover, the motor compartment 2 is connected to the arm 1, enabling the arm 1, the ESC compartment, and the motor compartment 2 to be integrally formed. This can save the internal space of the drone fuselage, reduce the use of bolts, reduce the overall weight of the arm 1. At the same time, since the arm 1, the ESC compartment, and the motor compartment 2 are integrally formed into a single integrated module, the overall installation or disassembly steps of the drone are simplified.

[0030] The inner lining 11 and the locking ring 12 are used for connecting the arm 1 to the fuselage of the drone. One end of the arm 1 away from the motor compartment 2 is used to connect to the fuselage of the drone. The inner lining 11 is installed inside the end of the arm 1 away from the motor compartment 2, and the locking ring 12 is installed outside the end of the arm 1 away from the motor compartment 2. The way the inner lining 11 and the locking ring 12 are installed on the arm 1 is prior art and will not be elaborated here. At the same time, the method of installing the arm 1 on the fuselage of the drone through the inner lining 11 and the locking ring 12 is also prior art and will not be elaborated here.

[0031] A plurality of mounting plates 21 are fixedly connected to the bottom inner wall of the motor compartment 2. A motor mounting plate 22 is installed on the plurality of mounting plates 21 by screws. A motor is installed on the motor mounting plate 22 by screws. A plurality of mounting holes for mating with the screws are formed on both the motor mounting plate 22 and the mounting plates 21. The cooperation between the screws and the mounting holes enables the motor mounting plate 22 to be disassembled and assembled.

[0032] A support plate 24 is fixedly connected to the top inner wall of the motor compartment 2. A gasket 25 is installed on the support plate 24 by screws. A turntable 26 is arranged above the gasket 25, and a relatively small gap is left between the gasket 25 and the turntable 26. A connecting cylinder 27 is fixedly connected to the middle of the upper surface of the turntable 26. A fixing piece 28 is sleeved outside the connecting cylinder 27, and a fan blade 23 is installed between the fixing piece 28 and the turntable 26;

[0033] A circular hole matching the connecting cylinder 27 is provided in the middle of the fan blade 23 and the middle of the fixing piece 28. A plurality of mounting holes matching the screws are provided in the middle of the fixing piece 28, the fan blade 23, and the turntable 26. The fan blade 23 is sleeved on the connecting cylinder 27 through the circular hole, and the connecting cylinder 27 passes through the circular hole provided in the fan blade 23 and extends to the outside of the fan blade 23. Then, the fixing piece 28 is sleeved on the outer surface of one end of the connecting cylinder 27 extending to the outside of the fan blade 23 through the circular hole. Then, the fixing piece 28 and the fan blade 23 are fixedly installed on the turntable 26 through screws.

[0034] The output shaft of the motor sequentially penetrates through the support plate 24 and the gasket 25 from bottom to top and extends into the shaft hole provided in the turntable 26, and the output shaft of the motor is fixedly connected to the shaft hole provided in the turntable 26. Through holes with diameters larger than the diameter of the output shaft of the motor are provided in the middle of the support plate 24 and the middle of the gasket 25. This facilitates the output shaft of the motor to pass through the support plate 24 and the gasket 25 and also meets the condition for the rotation of the output shaft of the motor. Start the motor to drive the output shaft to rotate, the output shaft drives the turntable 26 to rotate, and the turntable 26 drives the fan blade 29 to rotate.

[0035] All the technical features in this embodiment can be freely combined according to actual needs.

[0036] The above embodiment is a preferred implementation scheme of the present utility model. In addition, the present utility model can also be implemented in other ways. Any obvious replacement without departing from the concept of the technical solution is within the protection scope of the present utility model.

Claims

1. A lightweight drone arm, characterized in that: The lightweight drone arm includes: An arm (1), with a cavity formed inside the arm (1), which is used as an ESC compartment; A motor compartment (2), which is fixedly connected to the arm (1) and is made by an integral molding preparation method; A lining (11) and a locking ring (12), which are used for connecting the arm (1) to the fuselage of the drone.

2. The lightweight drone arm according to claim 1, characterized in that, The cavity of the arm (1) communicates with the inside of the motor compartment (2).

3. The lightweight drone arm according to claim 2, characterized in that, One end of the arm (1) away from the motor compartment (2) is used to connect to the fuselage of the drone.

4. The lightweight drone arm according to claim 3, characterized in that, The lining (11) is installed inside the end of the arm (1) away from the motor compartment (2), and the locking ring (12) is installed outside the end of the arm (1) away from the motor compartment (2).

5. The lightweight drone arm according to claim 1, characterized in that, A plurality of mounting plates (21) are fixedly connected to the bottom inner wall of the motor compartment (2), and a motor mounting plate (22) is installed on the plurality of mounting plates (21) by screws, and a motor is installed on the motor mounting plate (22) by screws.

6. The lightweight drone arm according to claim 5, wherein A support plate (24) is fixedly connected to the top inner wall of the motor compartment (2), a gasket (25) is installed on the support plate (24) by screws, a turntable (26) is arranged above the gasket (25), a connecting cylinder (27) is fixedly connected to the middle of the upper surface of the turntable (26), and a fixing piece (28) is sleeved outside the connecting cylinder (27).

7. The lightweight drone arm according to claim 6, characterized in that, The output shaft of the motor sequentially penetrates through the support plate (24) and the gasket (25) from bottom to top and extends into the shaft hole formed in the turntable (26), and the motor output shaft is fixedly connected to the shaft hole formed in the turntable (26).

8. The lightweight drone arm according to claim 6, wherein, A fan blade (23) is installed between the fixing piece (28) and the turntable (26).

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