CN210793652U

CN210793652U - Material emitter and unmanned aerial vehicle

Info

Publication number: CN210793652U
Application number: CN201921643817.5U
Authority: CN
Inventors: 吴李海
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-29
Filing date: 2019-09-29
Publication date: 2020-06-19
Anticipated expiration: 2029-09-29

Abstract

The material launching device comprises a rotating wheel capable of freely rotating, a material conveying belt surrounding the periphery of the rotating wheel, a gear, a power element driving the gear to rotate, a launching tube, a material pushing hammer positioned above the launching tube and a material pushing mechanism driving the material pushing hammer to push materials downwards; a launching magazine for embedding and placing materials is arranged on the material conveying belt, a rack is arranged on one side of the material conveying belt, and the rack is matched with the gear; the power element rotates to drive the gear to rotate, the gear rotates to drive the material conveying belt to convey, when the launching magazine is conveyed to the position above the feeding hole of the launching tube, the material pushing mechanism drives the material pushing hammer to push materials downwards, and materials in the launching magazine are pushed out from the discharging hole of the launching tube. Unmanned aerial vehicle contains above-mentioned material emitter.

Description

Material emitter and unmanned aerial vehicle

Technical Field

The utility model relates to an unmanned aerial vehicle seeding field, concretely relates to material transmitting device and unmanned aerial vehicle.

Background

Because manual work and tractor seeding efficiency are not high to receive all kinds of condition restrictions, for this reason, to the forest, grassland, the soil that need the large tracts of land seeding, adopt unmanned aerial vehicle to sow usually, but present seeder for unmanned aerial vehicle is usually for the mode that sprays, and the seed of seeding is conglobate easily, and the seeding is comparatively intensive, leads to seeding inhomogeneous, the survival rate is low, the effect is poor, and seeder's structure is all comparatively complicated.

The patent of publication number CN207748033U discloses a seeding device and a seeding unmanned aerial vehicle, the seeding device comprises a shell, a transmission component and a feeding component, wherein the feeding end of a material conveying part of the transmission component is arranged close to a feeding hole, so that seeds can fall onto the feeding end and can slide to a discharging end along the material conveying part under the action of gravity; the rotary part of the feeding assembly is arranged close to the discharge end of the conveying part and close to the feeding port, the rotary part is provided with a carrying groove capable of bearing seeds, the rotary part can rotate, the position of the carrying groove can correspond to the position of the discharge end of the conveying part, the carrying groove can also correspond to the feeding port, when the position of the carrying groove corresponds to the position of the discharge end of the conveying part, the seeds on the conveying part can fall into the carrying groove under the action of gravity, and when the carrying groove is opposite to the feeding port, the seeds in the carrying groove can be fed out from the feeding port; the driving piece can drive the rotating piece to rotate.

The inventor thinks that the technical scheme adopts gravity to sow, most seeds cannot enter the soil and are eaten by animals, or are blown away by wind, or the moisture of the soil cannot be obtained and does not bud, so that the survival rate of the seeds cannot be ensured; on the other hand, the seeds do not go deep into the soil, and even if the seeds bud, the root system is shallow, and is easy to be blown by wind to fall down or dry, so that the seeds are extremely unfavorable for the subsequent plant growth or yield.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a material launching device and an unmanned aerial vehicle, aiming at solving the problem that seeds cannot enter the soil so as to ensure the survival rate of the seeds and the sowing effect; in addition, compared with manual seeding and tractor seeding, the seeding equipment and the seeding unmanned aerial vehicle provided by the invention have the advantages of better seeding, quicker seeding and lower cost, and are not limited by various geographic environments, such as hillsides or complex terrains.

In order to achieve the above purpose, the utility model adopts the technical scheme that: a material launching device and an unmanned aerial vehicle are provided.

A material launching device is characterized by comprising a rotating wheel capable of freely rotating, a material conveying belt surrounding the periphery of the rotating wheel, a gear, a power element for driving the gear to rotate, a launching tube, a material pushing hammer positioned above the launching tube and a material pushing mechanism for driving the material pushing hammer to push materials downwards; a launching magazine for embedding and placing materials is arranged on the material conveying belt, a rack is arranged on one side of the material conveying belt, and the rack is matched with the gear; the power element rotates to drive the gear to rotate, the gear rotates to drive the material conveying belt to convey, when the launching magazine is conveyed to the position above the feeding hole of the launching tube, the material pushing mechanism drives the material pushing hammer to push materials downwards, and materials in the launching magazine are pushed out from the discharging hole of the launching tube.

Furthermore, the material pushing mechanism comprises a fixed electromagnet, a spring and a power supply circuit for supplying power to the electromagnet, the electromagnet is provided with an embedding hole for embedding the material pushing hammer, the material pushing hammer is embedded into the embedding hole, the spring is sleeved on the periphery of the material pushing hammer, and the lower part of the spring is connected with the middle part of the material pushing hammer; when the power supply circuit supplies power to the electromagnet, the spring is compressed to drive the pushing hammer to stand by upwards; when the power supply circuit is powered off, the electromagnet loses an electromagnetic field due to electromagnetic induction, and the material pushing hammer quickly hammers downwards under the action of the thrust of the spring and the gravitational potential energy of the material pushing hammer;

furthermore, the material launching device also comprises a control circuit positioned in the electromagnet, wherein the control circuit comprises a microprocessor, and the microprocessor is used for controlling the motion of the power element and the electromagnetic force of the electromagnet; the microprocessor sends a motion instruction to the power element, the power element drives the gear to rotate, and the gear rotates to drive the material conveying belt to convey; when the power supply circuit supplies power to the electromagnet, the spring is compressed to drive the material pushing hammer to stand by upwards. When the power supply circuit is powered off, the electromagnet loses an electromagnetic field due to electromagnetic induction, and the material pushing hammer rapidly hammers downwards under the action of the thrust of the spring and the gravitational potential energy of the material pushing hammer.

Further, the material launching device comprises a back plate, and the back plate is positioned at the rear side of the material launching device and is used for fixedly mounting the rotating wheel, the electromagnet, the power element and the launching tube; the back plate is also used for connecting a plurality of material launching devices in series.

Further, the material is solid particles including, but not limited to, seeds, fertilizers, chemical particles, and the like; the outer layer of the seed is of a two-layer coating structure, the first coating is one or two of fertilizer and medicine, and the second coating is a decomposable hard surface layer.

The material launching device enables the materials to be fixed on the material conveying belt by arranging the launching magazine on the material conveying belt; a motion instruction is sent to a power element through a microprocessor, the power element rotates to drive a gear to rotate, the gear rotates to drive a material conveying belt to convey, and materials for launching the magazine are conveyed to a feeding hole of a launching tube; the microprocessor sends a power-off instruction to the power supply circuit, after the electromagnet is powered off, the electromagnetic field is lost due to electromagnetic induction, the material pushing hammer quickly hammers downwards under the action of the thrust of the spring and the gravitational potential energy of the material pushing hammer, and the material in the launching magazine is pushed out from the discharge hole of the launching tube. Because the elasticity of the spring and the gravity of the pushing hammer are increased, the gravity of the seeds is not independently relied, so that the seeds can be injected into harder soil, and the survival rate of the seeds is improved; the structure is simple and compact, and the seed can be injected into harder soil due to the increase of the elasticity of the spring and the gravity of the pushing hammer, so that the survival rate of the seed is improved.

An unmanned aerial vehicle, include unmanned aerial vehicle main part and fixed mounting with above-mentioned material emitter in the unmanned aerial vehicle main part.

Preferably, unmanned aerial vehicle's wing with unmanned aerial vehicle main part junction is the plug structure, the plug structure includes plug circuit, screw thread and wedge, the plug circuit is located inside the junction, the screw thread with the wedge is located the junction the wing surface, the screw thread is used for the top of wing is in the spiral locking of each other of junction, the wedge is used for the top of wing is in the chucking of each other of junction.

Preferably, a sprayer is fixedly installed at one end of the wing, and the sprayer comprises a centrifugal spray head, a high-speed motor connected with the centrifugal spray head and a liquid storage device.

In one embodiment, in order to improve the spraying effect, the liquid particles are finer, the atomization rate is higher, the effect is better, the mist output is larger, the rotating speed of the high-speed motor is 10000-90000 r/min, but the heat generation amount is extremely large, in order to reduce the temperature of the high-speed motor, a water cooling technology is adopted between a first layer shell and a second layer shell of the high-speed motor, an oil cooling technology is adopted between the inside of the first layer shell and a motor shaft, and an oil seal or a sealing ring is adopted outside the first layer shell for sealing, so that the oil leakage in the first layer shell is prevented.

The beneficial effects of the utility model reside in that, the utility model provides a material launching device and unmanned aerial vehicle through set up the transmission magazine on the material conveyer belt for the material can be fixed on the material conveyer belt; the power element rotates to drive the gear to rotate, the gear rotates to drive the material conveying belt to convey, and materials for launching the magazine are conveyed to the feed port of the launching tube; the microprocessor sends a power-off instruction to the power supply circuit, after the electromagnet is powered off, the electromagnetic field is lost due to electromagnetic induction, the material pushing hammer rapidly hammers downwards under the thrust of the spring and the gravitational potential energy of the material pushing hammer, and the material in the launching magazine is pushed out from the discharge hole of the launching tube. When the material is seeds, the elasticity of the spring and the gravity of the pushing hammer are increased, and the gravity of the seeds is not independently relied, so that the seeds can be shot into harder soil, the survival rate of the seeds is improved, the effect is better if the seeds are in rainy days and in a period of time or wet soil, and the problem that the seeds cannot enter the soil in the prior art is solved;

secondly, under the condition that the embryo of the seed is very tender and easy to break under the impact force, and the seed cannot bud, the outer layer of the seed is provided with a two-layer coating structure, the first layer of coating is one or two of fertilizer and medicine, and the second layer of coating is a decomposable hard surface layer; the seed can be effectively protected, the germination rate is improved, the nutrition and the disease and insect pest prevention at the later period are realized, and the method is particularly effective to barren mountains, wild lands and deserts;

third, the utility model provides a material transmitting device and unmanned aerial vehicle, it is more high-efficient than artifical and tractor seeding, the cost is cheaper, not restricted by all kinds of circumstances, if hillside or topography are complicated etc.. The 3-dimensional flight of the unmanned aerial vehicle is utilized to realize that the seed row line is a 3D curve, and the error is less than 5 centimeters. The row spacing, the plant spacing, the row number, the seed types, the number of seeds in each hole and the depth of the seeds injected into the soil are all accurately adjustable; the whole operation process is digitally recorded, so that data acquisition work is well done for intelligent agriculture, and scientific artificial intelligence optimal guidance is provided for next operation;

fourthly, the volume of the material launching device and the unmanned aerial vehicle provided by the utility model is reduced to one fifth after all the wings are plugged, so that the limitation caused by insufficient environmental space is solved, and the material launching device and the unmanned aerial vehicle can be used for transferring along paths or tight forests and the like, thereby greatly facilitating various narrow environments such as mountain climbing operation and field paths;

fifth, the utility model provides a material emitter and unmanned aerial vehicle can realize the multiple use, accomplishes the seeding, spouts the medicine, raises fertile three kinds of functions, has promoted use value.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of the material launching device and the unmanned aerial vehicle according to an embodiment of the present invention.

Fig. 2 is a schematic structural view of a material launching device provided in the embodiment of the present invention.

Fig. 3 is a rear view of the material launching device provided by the embodiment of the present invention.

Fig. 4 is the utility model discloses unmanned aerial vehicle schematic diagram that provides.

Fig. 5 is the utility model discloses unmanned aerial vehicle top view that provides.

Fig. 6 is a plug circuit structure decomposition diagram of the wing plug structure of the unmanned aerial vehicle provided by the embodiment of the utility model.

Fig. 7 is the utility model discloses the screw thread and the wedge sketch map of unmanned aerial vehicle's wing plug structure are provided.

Fig. 8 is an enlarged view of a portion I of fig. 4.

Fig. 9 is a schematic diagram illustrating cooling of a high-speed motor according to an embodiment of the present invention.

Fig. 10 is a schematic material structure diagram according to an embodiment of the present invention.

The label in the above figure is 1, the main body of the unmanned aerial vehicle; 10. an electric control part; 11. a support; 12. a landing gear; 13. A support bar; 14. a boom; 15. an airfoil; 16. a propeller; 17. a connecting frame; 18. a main rotor motor; 19. a fastener; 2. a material launching device; 20. a rotating wheel; 21. a back plate; 22. a spring; 23. an electromagnet; 24. a material pushing hammer; 25. a launch tube; 26. a material conveying belt; 261. a rack; 27. launching the magazine; 28. A gear; 29. a power element; 30. the axis of the rotating wheel; 31. a bolt; 32. a first extension frame; 33. a second extension frame; 101. a female plug; 102. a plug connecting sleeve; 103. a male plug; 104. a thread; 105. a wedge shape; 106. a connecting seat; 3. a sprinkler; 301. an electric wire; 302. a centrifugal spray head; 303. a high-speed motor and a liquid storage device; 4. an emitting object; 401. a first coating; 402. a second coating; 501. a motor shaft; 502. A first layer of housing; 503. a second layer of housing; 504. oil sealing; 505. water; 506. an oil; 507. and (5) sealing rings. 508. A water inlet; 509. and (7) a water outlet.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present invention, it is noted that when an element is referred to as being "fixed" to another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present, it is to be understood that the terms "upper", "lower", "left", "right", and the like, if any, refer to an orientation or positional relationship based on that shown in the drawings, that is for convenience in describing the invention and to simplify the description, and that no indication or suggestion that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, is intended to be used as an illustration only, and not as a limitation of the patent, since the terms describing the positional relationship in the drawings will be understood by those skilled in the art as having the specific meaning of the terms set forth herein.

The technical solution of the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1, the unmanned aerial vehicle of an embodiment is used for sowing plant seeds, and the unmanned aerial vehicle includes an unmanned aerial vehicle main body 1 and a material emission device 2 fixedly installed on the unmanned aerial vehicle main body 1, and the material emission device 2 is used for sowing plant seeds.

As shown in fig. 2 and 3, the material launching device 2 includes a rotating wheel 20, a back plate 21, a material conveying belt 26, a power element 29, a gear 28, a spring 22, an electromagnet 23, a pushing hammer 24, and a launching tube 25; the spring 22 surrounds the upper part of the material pushing hammer 24; one end of the spring 22 is fixed at the top end of the material pushing hammer 24, and when the spring 22 extends, the material pushing hammer 24 can be driven to move downwards; the electromagnet 23 is arranged in the middle of the material pushing hammer 24; the bottom of the material pushing hammer 24 is positioned above the feeding hole of the launching tube 25;

wherein, be equipped with conductive winding, control circuit and supply circuit in the electro-magnet 23, spring 22, electro-magnet 23 and supply circuit has constituteed pushing equipment, supply circuit is the electro-magnet power supply, supply circuit with power component 29 with supply circuit's signal of telecommunication is connected, control circuit still includes microprocessor, microprocessor is used for controlling the electromagnetic force of power component 29 motion and electro-magnet. The microprocessor sends a motion instruction to the power element 29, the power element 29 drives the gear 28 to rotate, and the gear 28 rotates to drive the material conveying belt 26 to convey; the microprocessor sends a power transmission instruction to the power supply circuit, after the electromagnet 23 is electrified, an electromagnetic field is sent out due to electromagnetic induction, and the pushing hammer 24 moves upwards due to the built-in iron core or the magnet and drives the spring 22 to contract to generate spring potential energy; the microprocessor sends a power-off instruction to the power supply circuit, and after the electromagnet 23 is powered off, the electromagnetic field is lost due to electromagnetic induction, and the material pushing hammer 24 rapidly hammers downwards under the action of the thrust of the spring and the gravitational potential energy of the material pushing hammer 24;

one end of the material conveying belt 26 surrounds the periphery of the rotating wheel 20, and the other end of the material conveying belt is connected with the launching tube 25; the gear 28 is mounted on a power element 29, and when the power element 29 rotates, the power element 29 can drive the gear 28 to rotate; the gear 28 is engaged with the rack 261 on one side of the material conveying belt 26, so as to drive the material conveying belt 26 to convey, and the shooting magazine 27 is just positioned on the feeding hole of the shooting pipe 25;

the rotating wheel 20 is fixedly arranged on the back plate 21 through a rotating wheel shaft center 30, the power element 29 is fixedly arranged on the back plate 21 through a bolt 31, the electromagnet 23 is arranged on a second extending frame 33 connected with the back plate 21, and the launching tube 25 is arranged on a first extending frame 32 connected with the back plate 21.

The launching operation of the material launching device 2 is as follows:

a waiting state: the microprocessor sends a power transmission instruction to the power supply circuit, after the electromagnet 23 is electrified, an electromagnetic field is sent out due to electromagnetic induction, and the pushing hammer 24 drives the spring 22 to contract due to the displacement generated by the built-in iron core or the magnet, so that spring potential energy is generated;

loading state: the microprocessor sends a motion command to the power element 29, the power element 29 rotates, so that the gear 28 is driven to move, the gear 28 drives the rack 261 to move, so that the material conveying belt 26 is driven to convey, and the shooting magazine 27 on the material conveying belt 26 is conveyed to the position above the feeding hole of the shooting pipe 25;

a hair-buckling state: the microprocessor sends a power-off instruction to the power supply circuit, after the electromagnet 23 is powered off, the electromagnetic field is lost due to electromagnetic induction, the material pushing hammer 24 is quickly hammered downwards under the action of the thrust of the spring and the gravitational potential energy of the material pushing hammer 24, so that the material in the launching magazine 27 is pushed out from the discharge hole of the launching tube 25, and the seeding process is completed; and then, the microprocessor sends a reset instruction to the power supply circuit to complete the state to be transmitted, so that a new transmission process is started circularly.

After the electromagnet 23 is powered off, the material pushing hammer 24 rapidly hammers downwards under the action of the thrust of the spring 22 and the gravitational potential energy of the material pushing hammer 24, so that the material in the launching magazine 27 is pushed out from the discharge hole of the launching tube, the pushing force can inject the material into the soil by a depth of several centimeters, the device is suitable for sowing harder soil, the effect is better particularly in rainy days and a period of time or on moist soil, and the problem that the seeds cannot be sown into the harder soil under the action of the gravity of the seeds or the blowing force of a fan is solved.

As shown in fig. 4 and 5, the main body 1 of the unmanned aerial vehicle includes an electric control part 10, wings 15 and propellers 16, the landing gear 12 is fixed on the electric control part 10 through a connecting frame 17, the support 11 is used for fixedly mounting the material launching device 2, the support 11 is fixedly connected with the landing gear 12 through a support rod 13, and the support 11 is fixedly connected with the connecting frame 17 through a suspension rod 14. Automatically controlled part 10 is including the engine of the flight of drive unmanned aerial vehicle main part 1, the driver of power supply, power distributor, automatically controlled subassembly and the wireless signal transmission piece of distributing the power for each wing 15, the driver install in on the engine, the engine drives the driver work, power distributor with the driver links to each other with the plug circuit electrical property of each wing 15, power distributor with the driver automatically controlled subassembly with the wireless signal transmission piece electrical property links to each other, the wireless signal transmission piece is Global Positioning System (GPS), can receive control signal to give received control signal transmission for automatically controlled subassembly, automatically controlled subassembly is used for controlling flight line, flight height, flight speed of unmanned aerial vehicle main part 1, realizes three-dimensional flight.

Preferably, the Global Positioning System (GPS) can adopt RTK technology to realize that the precision of seeding is improved from 2-3 meters to within 5 centimeters; in addition, the electric control part 10 can be provided with a radar height module to fly in a simulated manner, so that the height precision of the sowing unmanned aerial vehicle from the ground is controlled within 0.5 meter, and the depth of the seeds injected into the soil is basically consistent.

Specifically, since the main body 1 of the unmanned aerial vehicle is large, in order to solve the problem of transportation and transition, the wings 15 are connected with the power supply distributor and the central part of the main body 1 of the unmanned aerial vehicle by using a plug circuit, as shown in fig. 6, one end of the female plug 101 is fixedly connected with the power supply distributor or the central part of the main body 1 of the unmanned aerial vehicle, the male plug 103 is connected with the wings 15, the male plug 103 is inserted into one end of the plug connecting sleeve 102, and the other end of the plug connecting sleeve 102 is inserted into the female plug 101, so that the wings 15 are connected with the power supply distributor and the central part of the main body; when the unmanned aerial vehicle main body 1 needs to be transported and transferred, one end of the plug connecting sleeve 102 connected with the female plug 101 is pulled out, so that the wings 15 are separated from the power supply distributor, and the wings 15 can be transported independently; as shown in fig. 7, in order to connect the wing 15 and the power distributor tightly and firmly, the surface of the wing 15 at the connection position of the wing 15 and the power distributor adopts a structure of a screw thread 104 and a wedge 105, the screw thread 104 locks the top end of the wing 15 at the connection position to the axis vertical direction, the screw thread 104 is specifically screwed and locked by an internal external screw thread and an external internal screw thread mechanism, and the wedge 105 matched with the male and the female tightly clamps the top ends of the wing 15 at the connection position to prevent the wing 15 from rotating left and right.

Specifically, as shown in fig. 8, one end of the wing 15 may be further provided with a sprayer 3 for spraying one or both of a pesticide and a liquid fertilizer. The sprinkler 3 comprises a centrifugal spray head 302, a high-speed motor and a liquid storage tank 303, wherein the centrifugal spray head 302 is a centrifugal throwing disc, the high-speed motor and the liquid storage tank 303 are connected with the centrifugal spray head 302, the high-speed motor is connected with an electric control component through an electric wire 301, a main rotor motor 18 is fixed at one end of a wing through a fastener 19, a propeller 16 is fixed on the main rotor motor 18, a power supply distributor respectively supplies power to the main rotor motor 18 and the high-speed motor through electric signals of a controller, the high-speed motor receives starting signals of the electric control component, the high-speed motor rotates to enable liquid pumped out by a water pump in the liquid storage tank to flow into a first liquid storage chamber between a first layer shell 502 and a second layer shell 503 through a water inlet 508, a water outlet 509 is arranged at the bottom of the first liquid storage chamber, the liquid flows out from the water outlet 509 and flows into the center of the, and the liquid is thrown into particle fog by using centrifugal force, so that the liquid is sprayed.

Preferably, in order to improve the spraying effect of the centrifugal nozzle 302, the liquid particles are finer, the atomization rate is higher, the effect is better, the mist output is larger, the rotating speed of the high-speed motor is 10000-. In order to solve the problem of overheating of the high-speed motor during operation, a water-cooling and oil-cooling dual cooling method is adopted, as shown in fig. 9, the high-speed motor is a two-layer housing, a first liquid storage chamber is arranged between a first-layer housing 502 and a second-layer housing 503, and a water-cooling method of flowing water 505 from a water inlet 508 to a water outlet 509 is adopted. A second liquid storage chamber is arranged between the second layer of shell 503 and the motor shaft 501, an oil cooling mode of putting in oil 506 is adopted, when the high-speed motor rotates, the oil is driven by the rotor and the coil in the second liquid storage chamber to circularly flow, heat is brought to the first liquid storage chamber from the inside through the second layer of shell 503, and a sealing mode of an oil seal 504 or a sealing ring 507 is adopted between the oil 506 and water 505.

Preferably, the outer layer of material is wrapped so that the material particles fit consistently to the size of the shooting magazine 27, avoiding the material particles being too small to escape the shooting magazine 27. As shown in fig. 10, a first coating 401 and a second coating 402 are sequentially coated on the material 4 as a center, the first coating 401 is a fertilizer and a drug or any one of them or other organic matters, and the second coating 402 is a decomposable hard surface layer.

Preferably, a plurality of material emitter 2 establish ties through backplate 21 and be fixed in unmanned aerial vehicle main part 1 on, as shown in fig. 1, 20 material emitter 2 establish ties together, fix in unmanned aerial vehicle main part 1, and like this, the interval between material emitter 2 is exactly the row spacing of seeding, through control circuit can realize a plurality of material emitter 2 seeding simultaneously or the time sharing seeding to seeding row spacing, line number, seeding quantity and seeding density can be accurate adjustable.

Preferably, the maximum carrying capacity of the unmanned aerial vehicle is 100 kilograms, and three functions of pesticide spraying, fertilizer raising and seeding can be realized, such as spreading of chemical particles of acidic substances for improvement of saline-alkali soil.

The embodiments of the present invention have been described in detail, but the invention is not limited to the embodiments, and those skilled in the art can make many equivalent modifications or substitutions without departing from the spirit of the present invention, and the equivalent modifications or substitutions are included in the scope of protection defined by the claims of the present application.

Claims

1. A material launching device is characterized by comprising a rotating wheel capable of freely rotating, a material conveying belt surrounding the periphery of the rotating wheel, a gear, a power element for driving the gear to rotate, a launching tube, a material pushing hammer positioned above the launching tube and a material pushing mechanism for driving the material pushing hammer to push materials downwards; a launching magazine for embedding and placing materials is arranged on the material conveying belt, a rack is arranged on one side of the material conveying belt, and the rack is matched with the gear; the power element rotates to drive the gear to rotate, the gear rotates to drive the material conveying belt to convey, when the launching magazine is conveyed to the position above the feeding hole of the launching tube, the material pushing mechanism drives the material pushing hammer to push materials downwards, and materials in the launching magazine are pushed out from the discharging hole of the launching tube.

2. The material launching device as recited in claim 1, wherein the material pushing mechanism comprises a fixed electromagnet, a spring and a power supply circuit for supplying power to the electromagnet, the electromagnet is provided with an embedding hole for embedding the material pushing hammer, the material pushing hammer is embedded into the embedding hole, the spring is sleeved on the periphery of the material pushing hammer, and the lower portion of the spring is connected with the middle portion of the material pushing hammer; when the power supply circuit supplies power to the electromagnet, the spring is compressed to drive the pushing hammer to move upwards; when the power supply circuit is powered off, the thrust of the spring and the gravity of the material pushing hammer drive the material pushing hammer to move downwards rapidly.

3. The material launching device as defined in claim 2, further comprising a control circuit within the electromagnet, the control circuit including a microprocessor for controlling the movement of the powered member and the electromagnetic force of the electromagnet.

4. The material launching device as defined in claim 3, wherein the material launching device comprises a back plate, the back plate is located at the rear side of the material launching device and is used for fixedly mounting the rotating wheel, the electromagnet, the power element and the launching tube; the back plate is also used for connecting a plurality of material launching devices in series.

5. The material launching device as described in claim 4, characterized in that the material is solid particles including but not limited to seeds, fertilizers, chemical particles, etc.

6. The material launching device as recited in claim 5, wherein the outer layer of the seed is a two-layer coating structure, the first layer is one or both of fertilizer and medicine, and the second layer is a decomposable hard surface layer.

7. An unmanned aerial vehicle, characterized in that, includes unmanned aerial vehicle main part and the material emitter of any one of claims 1 ~ 6, the material emitter fixed mounting is in the unmanned aerial vehicle main part.

8. The unmanned aerial vehicle of claim 7, wherein a joint of the wing of the unmanned aerial vehicle and the main body of the unmanned aerial vehicle is a plug structure, the plug structure comprises a plug circuit, a thread and a wedge, the plug circuit is located inside the joint, the thread and the wedge are located on the surface of the wing at the joint, the thread is used for mutually screwing and locking the top ends of the wing at the joint, and the wedge is used for mutually clamping the top ends of the wing at the joint.

9. The unmanned aerial vehicle of claim 8, wherein a sprayer is fixedly mounted at one end of the wing, the sprayer comprises a centrifugal nozzle, a high-speed motor connected with the centrifugal nozzle and a liquid storage device, and the sprayer is used for spraying one or both of pesticide and liquid fertilizer.