A drone rice seeding device

Abstract

The present invention provides a drone rice sowing device, comprising a body, a sowing device, an air supply device, and an angle holding device. The body comprises a frame, auxiliary wheels, a flight control module, a sowing airborne control module, a power module, and an ultrasonic sensor. The sowing device mainly comprises a seeding disc and a reduction motor. The seeding disc takes and sows seeds under the drive of the reduction motor. The sowing speed of the sowing device is regulated by controlling the speed of the reduction motor to adapt to the flight speed. The angle holding device keeps the sowing device vertical to the ground at all times. The air supply device utilizes the downward pressure wind field of the drone rotor to accelerate the downward speed of the seeds, so as to improve the accuracy of sowing, reduce the sowing position error, and improve the effect of rice sowing.

Description

Technical Field

[0001] The invention relates to an unmanned aerial vehicle rice seeding device, belonging to the technical field of agricultural machinery unmanned aerial vehicle seeding. Background Art

[0002] Rice is one of the three major food crops and also one of the most important cultivated crops in my country. The rice planting area in my country accounts for 1 / 4 of the country's food crops, while the output accounts for more than half. With the development of my country's social economy, agricultural structural adjustment, rural labor transfer and population aging, the traditional rice cultivation technology based on manual labor can no longer meet the current needs of rice production in my country. The simplification and mechanized planting of rice have become the key to improving labor productivity and solving the labor shortage. In recent years, with the development of social economy, the comparative benefits of grain production have been declining, a large number of laborers have been transferred to other industries, and large-scale land management has become a trend. Direct seeding of rice is a rice farming method that directly sows rice seeds into the field, eliminating the procedures of raising seedlings, pulling seedlings and planting seedlings. The advantages of saving labor and cost are particularly significant, which caters to the needs of current rice production and has developed rapidly. Traditional manual sowing has a series of difficult-to-solve technical problems such as uneven emergence, disordered seedlings, shallow roots and easy lodging, low yield potential and poor stability, so mechanized direct seeding technology has become an inevitable trend.

[0003] The existing technology of direct seeding rice by drones adopts a star-shaped spreading structure. This method leads to non-standardized seeding and uncontrollable structure of rice plant groups, which in turn affects the permeability and growth rate of subsequent plant groups. Therefore, a drone rice seeding device with stable and uniform seeding speed needs to be studied. Summary of the invention

[0004] In view of the shortcomings in the prior art, the present invention provides a drone rice seeding device, which can realize sowing in a row pattern, make the sowing spacing controllable and uniform, and is conducive to the growth of rice plants.

[0005] The present invention achieves the above technical objectives through the following technical means.

[0006] An unmanned aerial rice seeding device, characterized in that it comprises: a body, a seeding device, and an angle holding device, wherein the body comprises a frame, a flight control module, an airborne seeding control module, a power module, and an ultrasonic sensor;

[0007] The frame is provided with a UAV rotor, and the flight control module is used to control the flight state of the UAV; the flying seeding airborne control module controls the seeding device to adjust the seeding operation by obtaining the flight state of the UAV; the power supply module is used to provide power, and the ultrasonic sensor is installed under the frame plate to detect the distance between the frame and the ground, and is connected to the flight control module; the flying seeding airborne control module adjusts the speed of the reduction motor by receiving the command issued after making a judgment based on the flight speed of the UAV;

[0008] The seeding device includes a cylindrical casing, a reduction motor, a coupling, a first gear shaft, a second gear shaft, a lower cover plate, an upper cover plate, a seed leakage disk, a seed box, a controller, a rolling bearing, and a seed outlet tube. The seed box is fixed in the cylindrical casing by a sleeve ring. The upper cover plate is provided with a seed inlet, and the lower cover plate is provided with a seed outlet. The lower cover plate and the upper cover plate are stacked and fixed in sequence inside the cylindrical casing and are located below the seed box; the seed inlet and the seed outlet are located at different positions in the same circular area; the seed leakage disk is accommodated between the lower cover plate and the upper cover plate, and the multiple seed leakage holes on the seed leakage disk can respectively contact the seed inlet and the seed outlet during the process of rotating around the axis. overlap; the seed inlet is connected to the seed box, the seed outlet is connected to the seed outlet tube, the seed outlet tube is installed at the lower end of the cylindrical casing and extends out of the seeding device; the second gear shaft passes through the center of the lower cover plate and the upper cover plate, and the upper and lower ends are installed in the cylindrical casing through rolling bearings, and the seed leakage plate is fixed on the second gear shaft through a keyway; the first gear shaft and the second gear shaft are matched through gear transmission; one end of the first gear shaft is connected to the reduction motor installed on the cylindrical casing through a coupling, and the other end is installed on the cylindrical casing through a rolling bearing; the reduction motor is connected to the controller, and the controller is connected to the airborne control module of the flying seeding;

[0009] The angle holding device includes a first shell, a second shell, a first rotating pin, a second rotating pin, and a rotating shaft. The first shell is connected to the second shell through two first rotating pins, and the rotating shaft is connected to the second shell through the second rotating pin. The cylindrical housing is installed at the lower end of the rotating shaft.

[0010] Furthermore, a circle of hard-bristle brushes that fit closely with the lower cover plate is provided around each seed leakage hole on the lower surface of the seed leakage tray, and a circle of hard-bristle brushes that can fit closely with the upper surface of the seed leakage tray is provided at the seed inlet on the upper cover plate.

[0011] Furthermore, there are four ultrasonic sensors, which are installed in four positions below the frame panel, front, back, left and right, respectively, to detect the distance between the fuselage and the ground and transmit the signal to the flight control module. The flight control module adjusts the rotor flight state according to the distance between the fuselage and the ground.

[0012] Furthermore, a plurality of seeding devices are installed on the frame with adjustable spacing; a first pressure sensor is installed in the seed box, and the first pressure sensor is connected to the aerial seeding airborne control module.

[0013] Furthermore, it also includes an air supply device, which includes an air inlet pipe connected to the seed outlet pipe, and a rotating fan blade is installed in the air inlet pipe. The rotating fan blade is powered by a power module.

[0014] Furthermore, the air inlet pipe is in a tapered shape, and the rotating fan blades are installed at the large end of the air inlet pipe.

[0015] Furthermore, the air inlet of the air inlet duct is arranged below the UAV rotor, and its position is where the swirl intensity below the UAV is suitable, so that the swirl below the rotor can be continuously collected.

[0016] Furthermore, the body also includes auxiliary wheels and a second pressure sensor. The auxiliary wheels are installed under the frame. A second pressure sensor is installed at each auxiliary wheel and frame installation location. The pressure sensor is used to detect the pressure between the ground and the frame exerted on the auxiliary wheels. The pressure sensor is connected to the flight control module.

[0017] Furthermore, the flight control module can adjust different power supply schemes according to different land conditions in the working environment:

[0018] When the working environment is dry land, when the flight control module detects that the auxiliary wheels touch the ground according to the signals of the second pressure sensor and the ultrasonic sensor, the power of the UAV rotor is reduced, and the auxiliary wheels play the role of auxiliary power to move on the land;

[0019] When the working environment is slippery clay soil, when the flight control module detects that the auxiliary wheels touch the ground based on the signals of the second pressure sensor and the ultrasonic sensor, the UAV rotor power is not reduced, the auxiliary wheels are lifted off the ground, and the flight mode is adopted.

[0020] Furthermore, the auxiliary wheels and the frame are both made of lightweight composite materials, and the connection between the auxiliary wheels and the frame is a detachable structure.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The seed leakage tray of the present invention is closely fitted with the upper and lower cover plates fixed on the cylindrical casing, and the hard bristle brush prevents the rice seeds from entering the gap and damaging the seed body, so that the seed breakage rate can be reduced during sowing.

[0023] 2. The present invention can adjust the speed of the reduction motor through the controller according to the flight speed of the UAV, thereby adjusting the rotation speed of the driving seed leakage disk and changing the sowing speed.

[0024] 3. The air supply device of the present invention can utilize part of the wind force of the downward pressure wind field of the drone, and can guide the wind force into the seed tube to accelerate the seeds in the seed tube, shorten the falling time of the rice seeds, and reduce the sowing position error.

[0025] 4. The seed-discharging device of the present invention can keep its angle with the ground unchanged or change it within a very small angle under the action of the angle-maintaining device, thereby reducing the position error of the rice seed landing point.

[0026] 5. When the drone of the present invention performs aerial seeding operations, the auxiliary wheels can assist the drone in sowing operations, extend the working time, and can also assist the drone in landing. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the structure of the UAV rice seeding device of the present invention;

[0028] Figure 2 This is a front view of a UAV rice seeding device according to an embodiment of the present invention;

[0029] Figure 3 It is a side view of the UAV rice seeding device according to an embodiment of the present invention;

[0030] Figure 4 It is a schematic diagram of the transmission structure of the seeding device;

[0031] Figure 5 is a schematic diagram of an air supply device;

[0032] Figure 6 This is a schematic diagram of the seed-leaking structure of the seed-discharging device;

[0033] Figure 7 It is a schematic diagram of the cross-sectional structure of the seeding device;

[0034] Figure 8 is a top view schematic diagram of the angle holding device;

[0035] Fig. 9 for Figure 8 The angle holding device AA cross-sectional schematic diagram shown;

[0036] Fig.10 for Figure 8 The angle holding device BB is shown as a schematic cross-sectional view.

[0037] In the figure: 1. frame; 2. rotation; 3. flight control module; 4. aerial seeding airborne control module; 5. power module; 6. seeding device; 7. cylindrical housing; 8. reduction motor; 9. coupling; 10. first gear shaft; 11. second gear shaft; 12. lower cover plate; 13. upper cover plate; 14. seed leakage plate; 15. seed box; 16. controller; 17. rolling bearing; 18. seed outlet tube; 19. bristle brush; 20. air inlet pipe; 21. rotating fan blade; 22. angle holding device; 23. first shell; 24. second shell; 25. first rotating pin; 26. second rotating pin; 27. rotating shaft; 28. ultrasonic sensor; 29. ​​second pressure sensor. DETAILED DESCRIPTION

[0038] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments, but the protection scope of the present invention is not limited thereto.

[0039] like Figure 1 , Figure 2 , Figure 3 As shown, the UAV rice seeding device of the present invention includes a body, a seeding device 6, and an angle maintaining device 22.

[0040] The UAV body includes a frame 1, a flight control module 3, a flying seeding airborne control module 4, a power module 5, an ultrasonic sensor 28, and a second pressure sensor 29. The frame 1 is equipped with a UAV rotor to realize the functions of the UAV, and the flight control module 3 is responsible for controlling the take-off and landing, forward and backward, steering and other functions of the UAV. The ultrasonic sensor 28 is installed below the frame 1 board to detect the distance between the frame 1 and the ground, and is connected to the flight control module 3; specifically, the number of the ultrasonic sensors 28 is four, which are respectively installed in the front, back, left and right directions below the frame 1 board, for detecting the distance between the fuselage and the ground, and transmitting the signal to the flight control module 3, and the flight control module 3 adjusts the rotor flight state according to the distance between the fuselage and the ground. The flying seeding airborne control module 4 controls the seeding device 6 to adjust the seeding operation by obtaining the flight status of the UAV, and the power module 5 is responsible for providing power to the UAV rice flying seeding device.

[0041] Auxiliary wheels 2 are installed under the frame 1. A second pressure sensor 29 is installed at the connection between each auxiliary wheel 2 and the frame 1 to detect the pressure between the ground and the frame on the auxiliary wheel 2; the pressure sensor 29 is connected to the flight control module 3. The flight control module 3 can adjust different power supply schemes according to different land conditions in the working environment:

[0042] When the working environment is dry land, when the flight control module 3 detects that the auxiliary wheel 2 touches the land according to the signals of the second pressure sensor 29 and the ultrasonic sensor 28, the rotor power of the UAV is reduced, and the auxiliary wheel 2 plays the auxiliary power role to move on the land;

[0043] When the working environment is slippery clay soil, when the flight control module 3 detects that the auxiliary wheel 2 touches the ground according to the signals of the second pressure sensor 29 and the ultrasonic sensor 28, the UAV rotor power is not reduced, the auxiliary wheel 2 is lifted off the ground, and the UAV moves in flight mode.

[0044] The auxiliary wheel 2 and the frame 1 are both made of light composite materials, and the connection between the auxiliary wheel 2 and the frame is a detachable structure.

[0045] like Figure 4 , Figure 6 , Figure 7 As shown, the seeding device 6 includes a cylindrical housing 7, a reduction motor 8, a first gear shaft 10 of a coupling 9, a second gear shaft 11, a lower cover plate 12, an upper cover plate 13, a seed leakage plate 14, a seed box 15, a controller 16, a rolling bearing 17, a seed outlet tube 18, and a bristle brush 19. The seed box 15 is fixed in the cylindrical housing 7 by a collar, the upper cover plate 13 has a seed inlet, and the lower cover plate 12 has a seed outlet. The lower cover plate 12 and the upper cover plate 13 are stacked and fixed in the cylindrical housing 7 in sequence and are located below the seed box 15; the V-shaped seed outlet at the lower end of the seed box 15 is connected to the seed inlet of the upper cover plate 13. The seed inlet and the seed outlet are located at different positions in the same circular area; the seed leakage disk 14 is accommodated between the lower cover plate 12 and the upper cover plate 13, and the multiple seed leakage holes on the seed leakage disk 14 can overlap with the seed inlet and the seed outlet respectively during the process of rotating around the axis; the seed inlet is connected to the seed box 15, and the seed outlet is connected to the upper end of the seed outlet tube 18, and the seed outlet tube 18 is conical and its large end is installed at the seed outlet of the lower cover plate 12, and the lower end extends out of the seeding device 6; the second gear shaft 11 passes through the center of the lower cover plate 12 and the upper cover plate 13, and the upper and lower ends are installed in the cylindrical housing 7 through rolling bearings 17, and the seed leakage disk 14 is fixed on the second gear shaft 11 through a keyway; the first gear shaft 10 and the second gear shaft 11 are matched through gear transmission; one end of the first gear shaft 10 is connected to the reduction motor 8 installed on the cylindrical housing 7 through a coupling 9, and the other end is installed on the cylindrical housing 7 through a rolling bearing 17. The reduction motor 8 is fixed at the lower part of the cylindrical housing 7 through a motor connector and is connected to a controller 16. The controller 16 is connected to the aerial seeding airborne control module 4, and the speed of the reduction motor 8 is controlled by the controller.

[0046] The selected reduction motor 8 is a 12V DC reduction motor of model 775, with a speed of 10 to 600 / min and a torque of 10 to 60 kg. The seed leakage tray 14 is driven by the power output of the reduction motor 8 through the primary gear transmission device. The seed leakage holes on the seed leakage tray 14 that can hold the rice seeds required for a single rice sowing are connected to the seed box 15 through the seed inlet on the upper cover 13 in turn to obtain seeds; the seeds are connected to the seed outlet pipe 18 through the seed outlet on the lower cover 12 to output the seeds for sowing. During the rotation of the seed leakage tray 14, in order to prevent the seeds from entering the gap between the seed leakage tray 14 and the upper cover 13 and the lower cover 12, a circle of hard brushes 19 that fit closely with the lower cover 12 are provided around each seed leakage hole on the lower surface of the seed leakage tray 14, which can prevent the rice seeds from leaking out of the gap between the seed leakage holes of the seed leakage tray 14 and the lower seed leakage tray 8. The seed inlet on the upper cover plate 13 is provided with a circle of hard brushes 19 that can fit tightly with the upper surface of the seed leakage plate 14, which can prevent excessive rice seeds in the seed leakage hole from overflowing from the gap between the seed leakage plate 14 and the upper cover plate 13. A first pressure sensor is installed in the seed box 15, and the first pressure sensor is connected to the aerial seeding machine control module 4. The pressure sensor reflects the seed retention status in the seed box 15 to ensure that the rice seeds can slide naturally and continuously therein.

[0047] The seeding device 6 is connected to the frame 1 through the angle holding device 22 and is placed below the wind field to maintain stability. Figure 8 , Fig. 9 , Fig.10 As shown, the angle holding device 22 includes a first housing 23, a second housing 24, a first rotating pin 25, a second rotating pin 26, and a rotating shaft 27. The first housing 23 is connected to the second housing 24 through two first rotating pins 25, and the rotating shaft 27 is connected to the second housing 24 through the second rotating pin 26. The cylindrical housing 7 is mounted on the lower end of the rotating shaft 27. The angle holding device is connected to the UAV body through a threaded connection, and the rotating shaft is connected to the seeding device. When the UAV performs steering operations, the rotating shaft 27 can be rotated and the second housing 24 can be rotated to keep the seed outlet on the seeding device vertical to the ground. Under the action of the angle holding device, the seeding device can keep the angle with the ground unchanged or change within a very small angle under the UAV. The multiple seeding devices 6 are installed on the frame 1 with adjustable spacing, which is convenient for adjustment as needed.

[0048] The unmanned aerial rice seeding device of the present invention further comprises an air supply device, such as Figure 1 , Figure 2 , Figure 3 , Figure 5As shown, the air supply device includes an air inlet pipe 20 connected to the seed outlet pipe 18, and the air inlet pipe 20 is in a tapered shape. A rotating fan blade 21 is installed at the large end of the air inlet pipe 20, and the rotating fan blade 21 is powered by the power module 5. The fan blade rotates unidirectionally to suck the air outside the air inlet pipe into the pipe, and the external air flows in through the large end and blows out from the small end. The tapered shape with one end large and the other end small can accelerate the airflow entering from the large end, and the accelerated airflow blows into the seed outlet pipe from the small end to accelerate the seeds therein, shorten the falling time of the rice seeds, and reduce the sowing position error.

[0049] Preferably, the air inlet of the air inlet duct 20 is arranged below the UAV rotor, and its position is where the swirl intensity below the UAV is suitable, so that the swirl below the rotor can be continuously collected.

[0050] The working process of the UAV rice seeding device of the present invention is as follows:

[0051] When working, the reduction motor starts, and the power is transmitted to the first gear shaft through the coupling, and then to the second gear shaft through the first-stage gear. The power drives the seed leakage disk installed on the second gear shaft to rotate. The rice seeds in the seed box are filled with the seed leakage holes on the seed leakage disk as the seed leakage disk rotates. The rice seeds in the seed leakage holes of the seed leakage disk rotate and enter the seed outlet tube through the circular holes on the lower cover plate. At the same time, the air supply device is started when the UAV takes off and starts working. The rotating fan blades in the air supply tube rotate unidirectionally to introduce part of the external airflow into the air inlet tube. The airflow is accelerated through the tapered air inlet tube and blown into the seed outlet tube to accelerate the seeds in the seed outlet tube, shorten the falling time of the rice seeds, and reduce the sowing position error.

[0052] The embodiments are preferred implementations of the present invention, but the present invention is not limited to the above-mentioned implementations. Any obvious improvements, substitutions or modifications that can be made by those skilled in the art without departing from the essential content of the present invention belong to the protection scope of the present invention.

Claims

1. A UAV rice seeding device, characterized in that: include: A machine body, a seeding device (6), and an angle holding device (22), wherein the machine body comprises a frame (1), a flight control module (3), a flying seeding airborne control module (4), a power module (5), and an ultrasonic sensor (28); the frame (1) is provided with a UAV rotor, the flight control module (3) is used to control the flight state of the UAV; the flying seeding airborne control module (4) controls the seeding device (6) to adjust the seeding operation by acquiring the flight state of the UAV; the power module (5) is used to provide power; the ultrasonic sensor (28) is installed below the frame (1) board to detect the distance between the frame (1) and the ground, and is connected to the flight control module (3); the flying seeding airborne control module (4) adjusts the speed of the reduction motor by receiving instructions issued after making a judgment based on the flight speed of the UAV; The seeding device (6) comprises a cylindrical casing (7), a reduction motor (8), a coupling (9), a first gear shaft (10), a second gear shaft (11), a lower cover plate (12), an upper cover plate (13), a seed leakage plate (14), a seed box (15), a controller (16), a rolling bearing (17), and a seed outlet tube (18). The seed box (15) is fixed in the cylindrical casing (7) by a sleeve ring. The upper cover plate (13) is provided with a seed inlet, and the lower cover plate (12) is provided with a seed outlet. The lower cover plate (12) and the upper cover plate (13) are stacked and fixed in sequence inside the cylindrical casing (7) and are located below the seed box (15); the seed inlet and the seed outlet are located at different positions in the same circular area; the seed leakage disk (14) is accommodated between the lower cover plate (12) and the upper cover plate (13); the plurality of seed leakage holes on the seed leakage disk (14) can respectively coincide with the seed inlet and the seed outlet during the process of rotating around the axis; each seed leakage hole on the lower surface of the seed leakage disk (14) is provided with a circle of holes that overlap with the lower cover plate (15) 12) a hard brush (19) that fits tightly against the seeding plate (14); a circle of hard brushes (19) that can fit tightly against the upper surface of the seeding plate (14) is provided at the seed inlet on the upper cover plate (13); the seed inlet is connected to the seed box (15); the seed outlet is connected to the upper end of the seed outlet tube (18), and the lower end extends out of the seeding device (6); the second gear shaft (11) passes through the center of the lower cover plate (12) and the upper cover plate (13), and the upper and lower ends are installed in the cylindrical housing (7) through rolling bearings (17); the seeding plate (14) is connected to the seed box (15); the seed outlet is connected to the upper end of the seed outlet tube (18), and the lower end extends out of the seeding device (6); the second gear shaft (11) passes through the center of the lower cover plate (12) and the upper cover plate (13), and the upper and lower ends are installed in the cylindrical housing (7) through rolling bearings (17); The seed plate (14) is fixed on the second gear shaft (11) through a keyway; the first gear shaft (10) and the second gear shaft (11) are matched through gear transmission; one end of the first gear shaft (10) is connected to a reduction motor (8) installed on a cylindrical housing (7) through a coupling (9), and the other end is installed on the cylindrical housing (7) through a rolling bearing (17); the reduction motor (8) is connected to a controller (16), and the controller (16) is connected to an onboard control module (4) of the flying seeding machine; The angle holding device (22) comprises a first housing (23), a second housing (24), a first rotating pin (25), a second rotating pin (26), and a rotating shaft (27); the first housing (23) is connected to the second housing (24) via two first rotating pins (25); the rotating shaft (27) is connected to the second housing (24) via the second rotating pin (26); and the cylindrical housing (7) is mounted at the lower end of the rotating shaft (27); It also includes an air supply device, the air supply device includes an air inlet pipe (20) connected to the seed outlet pipe (18), a rotating fan blade (21) is installed in the air inlet pipe (20), and the rotating fan blade (21) is powered by a power module (5); the air inlet pipe (20) is in a tapered shape, and the rotating fan blade (21) is installed at the large end of the air inlet pipe (20); the air inlet of the air inlet pipe (20) is arranged below the rotor of the UAV, and its position is where the swirl intensity below the UAV is suitable, so that the swirl below the rotor can be continuously collected; The body further comprises auxiliary wheels (2) and a second pressure sensor (29); the auxiliary wheels (2) are mounted below the frame (1); a second pressure sensor (29) is mounted at each auxiliary wheel (2) and the frame (1); the second pressure sensor (29) is used to detect the pressure between the ground and the frame exerted on the auxiliary wheel (2); and the second pressure sensor (29) is connected to the flight control module (3).

2. The UAV rice seeding device according to claim 1, characterized in that: The ultrasonic sensors (28) are four in number and are respectively installed at four positions, front, back, left, and right, below the frame (1) panel, for detecting the distance between the fuselage and the ground and transmitting signals to the flight control module (3). The flight control module (3) adjusts the flight state of the rotor according to the distance between each part of the fuselage and the ground.

3. The UAV rice seeding device according to claim 1, characterized in that: A plurality of seeding devices (6) are installed on the frame (1) at adjustable intervals; a first pressure sensor is installed in the seed box (15), and the first pressure sensor is connected to the aerial seeding machine-mounted control module (4).

4. The UAV rice seeding device according to claim 1, characterized in that: The flight control module (3) can adjust different power supply schemes according to different land conditions in the working environment: When the working environment is dry land, when the flight control module (3) detects that the auxiliary wheel (2) contacts the ground based on the signals of the second pressure sensor (29) and the ultrasonic sensor (28), the power of the rotor of the drone is reduced, and the auxiliary wheel (2) exerts auxiliary power to move on the land; When the working environment is slippery clay soil, when the flight control module (3) detects that the auxiliary wheel (2) contacts the ground based on the signals from the second pressure sensor (29) and the ultrasonic sensor (28), the power of the rotor of the drone is not reduced, the auxiliary wheel (2) is lifted off the ground, and the drone moves in flight mode.

5. The UAV rice seeding device according to claim 1, characterized in that: The auxiliary wheel (2) and the frame (1) are both made of lightweight composite materials, and the connection between the auxiliary wheel (2) and the frame is a detachable structure.

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