A four-axis unmanned aerial vehicle shaft connecting device

Abstract

The utility model discloses a four -axis unmanned plane axle connecting device, including four machine arms, one end of machine arm is equipped with machine arm base, and the other end is equipped with machine arm end cover, and the inside of machine arm is equipped with electric wire pipeline and main shaft pipeline, one side of machine arm end cover is equipped with rotor gear box, and the surface of machine arm is connected with cross bar through connecting piece, and the surface upper portion of machine arm base is equipped with mounting support, and the bottom of machine arm base is inclined and curved downward and is connected with mounting support board, and the bottom of engine body is equipped with landing gear body, the machine arm of the device is connected with engine body and landing gear body directly, and the rotating shaft in the inside of unmanned plane is connected and carried, does not need to use the rack in traditional unmanned plane, makes the device structure more simple and light, and the overall quality is smaller, and the machine arm adopts carbon fiber material, has high strength, light weight and corrosion -resistant characteristics.

Description

TECHNICAL FIELD

[0001] The utility model relates to unmanned plane technical field especially relates to a four -axis unmanned plane axle connecting device. BACKGROUND

[0002] The unmanned plane is also called "UAV" in English, which is a kind of unmanned aircraft controlled by remote control equipment and / or built-in program. With the development of market demand, some unmanned planes tend to develop in the direction of large-scale, such as cargo unmanned plane or emergency rescue and spraying unmanned plane, while some unmanned planes develop in the direction of miniaturization and light weight to meet the requirements of users for convenience.

[0003] The axle connecting device of the unmanned plane is a very important part of the structure of the unmanned plane, which ensures that each rotor of the unmanned plane can work stably and efficiently, so as to realize smooth flight and precise control. However, in the prior art, in order to realize the functions of the whole plane, a traditional unmanned plane generally needs to be provided with a frame as a main structure, which is specially used for installing and fixing related parts and serves as a carrier of the axle, which makes the whole device heavy and bulky. Therefore, we design a four-axis unmanned plane axle connecting device. SUMMARY

[0004] The utility model aims at providing a four-axis unmanned plane axle connecting device to solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme.

[0006] A four-axis unmanned plane axle connecting device, comprising four arms, the ends of the four arms close to each other are respectively provided with arm bases, and the ends of the four arms away from each other are respectively provided with arm end covers, the inside of the arm is provided with a wire pipe and a main shaft pipe, the arm base is provided with a first main shaft through hole and a first wire through hole, the arm end cover is provided with a second main shaft through hole and a second wire through hole, the wire pipe is arranged between the first wire through hole and the second wire through hole, the main shaft pipe is arranged between the first main shaft through hole and the second main shaft through hole, the side of the arm end cover away from the arm is provided with a rotor gear box, the adjacent two arms are connected by a connecting piece and a cross bar, the side surface of the arm base away from the arm is provided with two mounting brackets, the first mounting bolt is inserted and mounted on the mounting bracket, the bottom of the arm base is downwardly and downwardly curved and connected with a mounting plate, the second mounting bolt is inserted and mounted on the mounting plate, the engine body is arranged between the four arms, the engine body is provided with a landing gear body, the mounting bracket is fixedly connected with the connecting plate on the top of the engine body through the first mounting bolt, and the mounting plate is fixedly connected with the landing gear body through the second mounting bolt.

[0007] As a preferred scheme of the utility model: the connecting piece includes integrally formed mounting block and connecting rod, two third mounting bolts are inserted on the mounting block, the surface of the arm is provided with the mounting hole matched with the third mounting bolt, the surface of the side of the mounting block away from the connecting rod is the arc surface structure that is combined with the surface of the arm, and the indicating arrow is engraved on the arc surface, the outside of the connecting rod is equipped with the external thread, the inside of the cross bar is equipped with the internal thread matched with the external thread.

[0008] As a further preferred scheme of the utility model: the rotor gear box includes two split type box bodies, two split type box bodies are spliced into the horizontal cylinder and vertical cylinder that are connected with each other through a plurality of bolts, the flange is arranged on the end of the horizontal cylinder away from the vertical cylinder, the rotor gear box is connected with the outside surface of the arm end cover through the flange, the threading hole corresponding with the second wire through hole is formed in the flange.

[0009] As a further preferred scheme of the utility model: the wire pipeline is arranged in parallel above the main shaft pipeline, and the pipe diameter of the wire pipeline is smaller than the pipe diameter of the main shaft pipeline.

[0010] As a further preferred scheme of the utility model: the material of the arm body structure is carbon fiber.

[0011] As a further preferred scheme of the utility model: the material of the arm base and the material of the arm end cover are both aluminum alloy.

[0012] As a further preferred scheme of the utility model: the cross bar and the connecting piece are both hollow tubular structures.

[0013] As a further preferred scheme of the utility model: the first main shaft through hole, the main shaft pipeline, the second main shaft through hole, the inside of the horizontal cylinder and the inside of the vertical cylinder are sequentially communicated.

[0014] The utility model discloses an advantageous effect is: the device when using, the mounting support is fixedly connected through the first mounting bolt with the connecting plate on the top of engine body, and the mounting support is fixedly connected with the landing gear body through the second mounting bolt, and the drive shaft connected with the engine output end is arranged in the main shaft pipeline, and the other end of the drive shaft reaches the main rotating shaft in the rotor gear box and is connected, and the main rotating shaft is located in the inside of vertical cylinder, and simultaneously, the relevant electric wire can be arranged in the inside of electric wire pipeline, through the structural design of the device, the arm is directly connected with the engine body and landing gear body, and the unmanned aerial vehicle is connected and bears each rotating shaft in the inside, so that the rotor take-off function of unmanned aerial vehicle can be realized, and the rack in traditional unmanned aerial vehicle is not needed, so that the device structure is more simple and light, and the overall quality is smaller, the arm adopts carbon fiber material, has the characteristics of high strength, light weight and corrosion resistance, and the setting of detachable cross bar can increase the stability of device structure on one hand, and on the other hand, the cross bar can also provide the position for the installation of relevant equipment, such as water tank, control box or exhaust pipe etc., improve the practicality of device. BRIEF DESCRIPTION OF DRAWINGS

[0015] The accompanying drawings are included to provide a further understanding of the present application and are incorporated in and constitute a part of this specification, illustrate embodiments of the present application and are used to explain the present application, and do not constitute a limitation on the present application. In the drawings:

[0016] Figure 1 It is the perspective view of the whole structure of the utility model;

[0017] Figure 2 It is the explosion view of the local structure of the utility model;

[0018] Figure 3 It is Figure 2 The enlarged view of the local structure in A;

[0019] Figure 4 It is Figure 1 The enlarged view of A in A;

[0020] Figure 5 It is the exploded view of the local structure of the utility model.

[0021] 1, arm, 2, rotor gear box, 3, cross bar, 4, arm base, 5, mounting support, 6, flange, 7, mounting support, 8, first electric wire through hole, 9, electric wire pipeline, 10, mounting hole, 11, second main shaft through hole, 12, second electric wire through hole, 13, split type box, 14, main shaft pipeline, 15, first main shaft through hole, 16, connecting rod, 17, external thread, 18, indication arrow, 19, mounting block, 20, arm end cover, 21, transverse cylinder, 22, vertical cylinder. DETAILED DESCRIPTION

[0022] The utility model will be further explained in detail in combination with the drawings. These drawings are all simplified schematic diagrams, and only schematically show the basic structure of the utility model, so they only show the relevant components of the utility model.

[0023] Please refer to Figures 1-5 In the embodiment of the utility model, a four-axle unmanned aerial vehicle axle connecting device, including four machine arms 1, the material quality of the machine arm 1 body structure is carbon fiber, the end of the mutual approach of four machine arms 1 is equipped with machine arm base 4 respectively, the end of the mutual departure of four machine arms 1 is equipped with machine arm end cover 20 respectively, the inside of machine arm 1 is equipped with electric wire pipeline 9 and main shaft pipeline 14, electric wire pipeline 9 is parallelly arranged in the just above of main shaft pipeline 14, the pipe diameter size of electric wire pipeline 9 is less than the pipe diameter size of main shaft pipeline 14, the first main shaft through hole 15 and the first electric wire through hole 8 are passed through and set up on machine arm base 4, the second main shaft through hole 11 and the second electric wire through hole 12 are passed through and set up on machine arm end cover 20, electric wire pipeline 9 is arranged between the first electric wire through hole 8 and the second electric wire through hole 12, main shaft pipeline 14 is arranged between the first main shaft through hole 15 and the second main shaft through hole 11, the side of machine arm end cover 20 away from machine arm 1 is equipped with rotor gear box 2, the adjacent two machine arms 1 are connected with cross bar 3 through connecting piece, the surface upper portion of the side of machine arm base 4 away from machine arm 1 is equipped with two mounting brackets 7, the first mounting bolt is inserted and installed on mounting bracket 7, the bottom of machine arm base 4 is downwardly inclined and curved and is connected with mounting support plate 5, the second mounting bolt is inserted and installed on mounting support plate 5, the engine body is arranged between four machine arms 1, the landing gear body is arranged on the bottom of engine body, the engine body and landing gear are not shown in the drawing, mounting bracket 7 is fixedly connected with the connecting plate on the top of engine body through the first mounting bolt, mounting support plate 5 is fixedly connected with landing gear body through the second mounting bolt, the material quality of machine arm base 4 and the material quality of machine arm end cover 20 are all aluminum alloy.

[0024] Connecting piece includes integrally formed mounting block 19 and connecting rod 16, two third mounting bolts are inserted and installed on mounting block 19, the surface of machine arm 1 is provided with mounting hole 10 matched with third mounting bolt, the surface of the side of mounting block 19 away from connecting rod 16 is arc surface structure that is combined with the surface of machine arm 1, and the upward indicating arrow 18 is engraved on the arc surface, the outer thread 17 is arranged on the outside of connecting rod 16, the inner thread matched with outer thread 17 is arranged in the inside of cross bar 3, and cross bar 3 and connecting piece are all hollow tubular structure;The curved surface design on mounting block 19 is convenient for the surface of machine arm 1 to be combined when installing, and the setting of indicating arrow 18 is convenient for reminding the position of mounting block 19 when installing, so as to improve the operation convenience.

[0025] The rotor gear box 2 comprises two split bodies 13 which are spliced into a transverse cylinder 21 and a vertical cylinder 22 connected with each other through a plurality of bolts, a first main shaft through hole 15, a main shaft pipe 14, a second main shaft through hole 11, the inside of the transverse cylinder 21 and the inside of the vertical cylinder 22 are sequentially communicated, a flange plate 6 is arranged outside the end of the transverse cylinder 21 away from the vertical cylinder 22, the rotor gear box 2 is connected with the outer side surface of the arm end cover 20 through the flange plate 6, and a wire hole corresponding to the second wire through hole 12 is formed in the flange plate 6.

[0026] Specifically, in use, the mounting bracket 7 is fixedly connected with the connecting plate at the top of the engine body through the first mounting bolt, the mounting plate 5 is fixedly connected with the landing gear body through the second mounting bolt, the driving shaft connected with the output end of the engine is arranged in the main shaft pipe 14, the other end of the driving shaft extends into the rotor gear box 2 and is connected with the main rotating shaft, the main rotating shaft is located in the inside of the vertical cylinder 22, and meanwhile, the related wire can be arranged in the wire pipe 9, through the structural design of the device, the arm 1 is directly connected with the engine body and the landing gear body, the arm 1 is connected and bears the rotating shafts in the unmanned aerial vehicle, so that the rotor take-off function of the unmanned aerial vehicle is realized, the rack in the traditional unmanned aerial vehicle is not needed, the device is more simple and light in structure, the overall quality is smaller, the arm 1 is made of carbon fiber material and has the characteristics of high strength, light weight and corrosion resistance, the detachable cross rod 3 can increase the stability of the device structure on the one hand, and the cross rod 3 can also provide positions for the installation of related equipment, such as a water tank, a control box or an exhaust pipe and the like, and the practicability of the device is improved.

[0027] The above is only a preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A four-axis unmanned aerial vehicle shaft connecting device, comprising four arms (1); characterized in that: Four machine arms (1) are provided with machine arm bases (4) at one end close to each other, and are provided with machine arm end covers (20) at the other end away from each other, the inside of the machine arm (1) is provided with a wire conduit (9) and a main shaft conduit (14), the machine arm base (4) is provided with a first main shaft through hole (15) and a first wire through hole (8) penetratingly formed thereon, the machine arm end cover (20) is provided with a second main shaft through hole (11) and a second wire through hole (12) penetratingly formed thereon, the wire conduit (9) is arranged between the first wire through hole (8) and the second wire through hole (12), the main shaft conduit (14) is arranged between the first main shaft through hole (15) and the second main shaft through hole (11), the machine arm end cover (20) is provided with a rotor gear box (2) on the side away from the machine arm (1), two adjacent machine arms (1) are connected by a connecting piece and a cross rod (3), the surface of the side of the machine arm base (4) away from the machine arm (1) is provided with two mounting brackets (7) on the upper part, the mounting bracket (7) is inserted with a first mounting bolt, the bottom of the machine arm base (4) is downwardly and obliquely bent and connected with a mounting support plate (5), the mounting support plate (5) is inserted with a second mounting bolt, the four machine arm bases (4) are provided with an engine body, the bottom of the engine body is provided with a landing gear body, the mounting bracket (7) is fixedly connected with the connecting plate on the top of the engine body through the first mounting bolt, and the mounting support plate (5) is fixedly connected with the landing gear body through the second mounting bolt. 2.The shaft connecting device of a quadcopter according to claim 1, wherein: The connecting piece comprises an integral mounting block (19) and a connecting rod (16), the mounting block (19) is inserted with two third mounting bolts, the surface of the machine arm (1) is provided with mounting holes (10) matched with the third mounting bolts, the surface of the side of the mounting block (19) away from the connecting rod (16) is an arc surface structure matched with the surface of the machine arm (1), and an indicating arrow (18) is engraved on the arc surface, the outer part of the connecting rod (16) is provided with external threads (17), and the inner part of the cross rod (3) is provided with internal threads matched with the external threads (17). 3.The shaft connecting device of a quadcopter according to claim 1, wherein: The rotor gear box (2) comprises two split type box bodies (13), the two split type box bodies (13) are spliced into a horizontal cylinder (21) and a vertical cylinder (22) connected with each other through a plurality of bolts, the outer part of the end of the horizontal cylinder (21) away from the vertical cylinder (22) is sleeved with a flange plate (6), the rotor gear box (2) is connected with the outer surface of the machine arm end cover (20) through the flange plate (6), and the flange plate (6) is provided with a wire penetrating hole corresponding to the second wire through hole (12).

4. The shaft connecting device of a quadcopter according to claim 1, characterized in that: The wire conduit (9) is arranged in parallel above the main shaft conduit (14), and the pipe diameter of the wire conduit (9) is smaller than that of the main shaft conduit (14).

5. The shaft connecting device of a quadcopter according to claim 4, characterized in that: The material of the machine arm (1) body structure is carbon fiber.

6. The shaft connecting device of a quadcopter unmanned aerial vehicle according to claim 1, characterized in that: The materials of the machine arm base (4) and the machine arm end cover (20) are both aluminum alloy.

7. The shaft connecting device of a quadcopter according to claim 5, characterized in that: The cross rod (3) and the connecting piece are both hollow tubular structures. 8.The shaft connecting device of a quadcopter according to claim 6, wherein: The first main shaft through hole (15), the main shaft pipeline (14), the second main shaft through hole (11), the transverse cylinder (21) inside and the vertical cylinder (22) inside are sequentially communicated.

Images