阅读说明：本技术 农业无人机风动播撒单元及播撒方法 (Agricultural unmanned aerial vehicle pneumatic sowing unit and sowing method ) 是由 周振飞 童新蒙 俞冬敏 庞古月 于 2021-08-02 设计创作，主要内容包括：本发明公开了一种农业无人机风动播撒单元及播撒方法,包括壳体,所述壳体的顶部设置有进料口,所述壳体的底部设置有出料口,所述壳体内设置有盘体,所述壳体上设置有下料通道,所述下料通道的顶部与壳体之间形成有开口,所述出料口位于下料通道的底部,所述盘体与壳体转动连接,所述盘体上设置有吸种孔。将现有技术种的无序直播,通过本技术方案能够达到有序直播的效果,目前无人机或地面设备设备直播仅实现播种和条播,属于无序直播状态,本技术方案实现了有序穴播,也就是成规律成行成穴的一颗颗直播,田间通风和光照条件得到改善,提高后期水稻的成苗率和水稻质量。(The invention discloses a pneumatic sowing unit and a sowing method for an agricultural unmanned aerial vehicle, and the unit comprises a shell, wherein a feed inlet is formed in the top of the shell, a discharge outlet is formed in the bottom of the shell, a disc body is arranged in the shell, a blanking channel is formed in the shell, an opening is formed between the top of the blanking channel and the shell, the discharge outlet is located at the bottom of the blanking channel, the disc body is rotatably connected with the shell, and a seed suction hole is formed in the disc body. With the unordered direct seeding of prior art kind, can reach the effect of orderly direct seeding through this technical scheme, present unmanned aerial vehicle or ground equipment are direct-seeded and only realize seeding and drill seeding, belong to unordered direct seeding state, and this technical scheme has realized orderly bunch planting, also is one grain direct seeding in line cavitation in law promptly, and field ventilation and illumination condition obtain improving, improve the seedling rate and the rice quality of later stage rice.)

1. The utility model provides a unit is scattered to agricultural unmanned aerial vehicle pnematic, its characterized in that: comprises a shell (1), a feed inlet (14) is arranged at the top of the shell (1), a discharge outlet (12) is arranged at the bottom of the shell (1), a disc body (3) is arranged in the shell (1), a blanking channel (13) is arranged on the shell (1), an opening (131) is formed between the top of the blanking channel (13) and the shell (1), the discharge outlet (12) is positioned at the bottom of the blanking channel (13), the disc body (3) is rotatably connected with the shell (1), a seed suction hole (311) is arranged on the disc body (3), a connecting shaft (322) is arranged at the center of the disc body (3), a driving device is connected onto the connecting shaft (322), a rotating pipe (33) is arranged in the connecting shaft (322), the rotating pipe (33) is rotatably connected with the connecting shaft (322), one end of the rotating pipe (33) is communicated with the seed suction hole (311), the other end of the rotating pipe (33) is connected with an air suction pipe (324), and the air suction pipe (324) is communicated with an air source (332); drive arrangement drive disk body (3) rotate, make inhale in disk body (3) kind of a hole (311) from casing (1) in through opening (131) rotate to unloading passageway (13), casing (1) is provided with restriction inhale kind of a hole (311) at discharge gate (12) position and goes up baffle (132) that the seed got into in casing (1), baffle (132) are located the rotation orbit of inhaling kind of a hole (311), the bottom downwardly extending of casing (1) forms discharging channel (11), discharging channel's (11) bottom is provided with discharge gate (12), discharging channel's (11) lateral wall rotates and is connected with and rotates seat (21), the bottom of rotating seat (21) is connected with accelerating tube (22), casing (1) bottom is provided with rotating motor (23), the main shaft that rotates motor (23) is connected with rotation seat (21), it rotates and makes accelerating tube (22) to rotate motor (23) drive rotation seat (21) and have and be vertical in ground The surface and the horizontal surface are in two action postures, the gas source is communicated with a gas outlet pipe (15), and the gas outlet pipe (15) is communicated with an accelerating pipe.

2. The agricultural unmanned aerial vehicle pneumatic seeding unit of claim 1, wherein: the driving device comprises a driving motor (4), a first gear (41) and a second gear (42), wherein the first gear (41) is connected with a motor shaft of the driving motor (4), the second gear (42) is meshed with the first gear (41), and the second gear (42) is arranged on the connecting shaft (322).

3. The agricultural unmanned aerial vehicle pneumatic seeding unit of claim 1, wherein: the bottom of casing (1) is provided with motor cabinet (231), be provided with first connecting bolt (232) between rotating motor (23) and motor cabinet (231).

4. The agricultural unmanned aerial vehicle pneumatic seeding unit of claim 1, wherein: the side of the rotating seat (21) is provided with an avoiding hole (211) which avoids the discharging channel (11) in the rotating process.

5. The agricultural unmanned aerial vehicle pneumatic seeding unit of claim 1, wherein: rotate seat (21) width direction's a side and be provided with spindle hole (212), spindle hole (212) outwards extend along the horizontal direction and form first clamping groove (213), spindle hole (212) and the main shaft cooperation of rotating motor (23), be provided with first locking bolt (214) on first clamping groove (213), another side of rotating seat (21) width direction is provided with rotation piece (215), be provided with second connecting bolt (216) between the one end of rotation piece (215) and discharging channel (11), the other end of rotation piece (215) with rotate seat (21) and rotate and be connected.

6. The agricultural unmanned aerial vehicle pneumatic seeding unit of claim 5, wherein: be provided with adapter sleeve (221) on accelerating tube (22), the top of adapter sleeve (221) is connected with the bottom of rotating seat (21), the bottom and accelerating tube (22) of adapter sleeve (221) are connected, the outlet duct slope upwards sets up on adapter sleeve.

7. The agricultural unmanned aerial vehicle pneumatic seeding unit of claim 5, wherein: the bottom of the connecting sleeve (221) is provided with second clamping grooves (222), and a second locking bolt (223) is arranged between two sides of each second clamping groove (222) in the width direction.

8. The agricultural unmanned aerial vehicle pneumatic seeding unit of claim 6, wherein: the second clamping groove (222) extends along the length direction of the accelerating tube (22).

9. An unmanned aerial vehicle sowing method is characterized in that: the seed suction disc is rotatably connected in the shell, a seed suction hole is formed in the seed suction disc, the negative pressure end of the air pump generates negative pressure at the position of the seed suction hole to fix seeds at the position of the seed suction hole, the rotating disc rotates to discharge the seeds into the accelerating tube which vertically faces downwards one by one, and the positive pressure end of the air pump generates positive pressure in the accelerating tube to accelerate the seeds to fall.

Technical Field

The invention relates to the field of plant protection unmanned aerial vehicles, in particular to a pneumatic sowing unit and a sowing method of an agricultural unmanned aerial vehicle.

Background

Plant protection unmanned aerial vehicle flies the accuse through ground remote control or navigation, realizes spraying the operation, can spray medicament, seed, powder etc.. But plant protection unmanned aerial vehicle among the prior art, its seeding case has the technical problem that seeding homogeneity is poor, and impracticable seeding maize, beans etc. single hole seeding quantity accuracy requirement is higher, row interval controls tighter crop. Plant protection unmanned aerial vehicle among the prior art, the seed that its seeder was broadcast leans on gravity freely to fall to soil in, and the seed is in soil surface, still need carry out the earthing operation after the seeding usually.

In the prior art, the invention patent with the publication number of "CN 201921198072.6" discloses an unmanned aerial vehicle seeding device, which completes seeding by sowing seeds downwards, but in the process of sowing rice seeds, due to the nature of a paddy field, the sowed seeds can only float on the water surface under the action of gravity, and good seed falling cannot be realized.

Disclosure of Invention

The invention aims to provide a pneumatic sowing unit of an agricultural unmanned aerial vehicle, which has the advantages of high seed falling precision and high seed falling efficiency.

The technical purpose of the invention is realized by the following technical scheme: an unmanned aerial vehicle negative pressure sowing structure comprises a shell, wherein a feed inlet is formed in the top of the shell, a discharge outlet is formed in the bottom of the shell, a disc body is arranged in the shell, a blanking channel is formed in the shell, an opening is formed between the top of the blanking channel and the shell, the discharge outlet is located at the bottom of the blanking channel, the disc body is rotatably connected with the shell, a seed suction hole is formed in the disc body, a connecting shaft is arranged in the center of the disc body, a driving device is connected onto the connecting shaft, a rotating pipe is arranged in the connecting shaft and rotatably connected with the connecting shaft, one end of the rotating pipe is communicated with the seed suction hole, the other end of the rotating pipe is connected with a gas suction pipe, and the gas suction pipe is communicated with a gas source; the utility model discloses a seed feeding device, including drive arrangement drive disk body, make the hole of inhaling on the disk body rotate to unloading passageway through the opening in the casing, the casing is provided with the restriction at the discharge gate position and inhales the baffle in the hole goes up the seed entering casing, the baffle is located the rotation orbit of inhaling the hole, the bottom downwardly extending of casing forms discharging channel, discharging channel's bottom is provided with the discharge gate, discharging channel's lateral wall rotates and is connected with and rotates the seat, the bottom of rotating the seat is connected with the accelerating tube, the casing bottom is provided with rotates the motor, the main shaft that rotates the motor is connected with and rotates the seat, it rotates the seat and rotates and makes the accelerating tube have two action gestures of vertical in ground and level in ground to rotate motor drive, the intercommunication has the outlet duct on the air supply, outlet duct and accelerating tube intercommunication. .

Preferably, the driving device comprises a driving motor, a first gear and a second gear, the first gear is connected with a motor shaft of the driving motor, the second gear is meshed with the first gear, and the second gear is arranged on the connecting shaft.

Through adopting above-mentioned technical scheme, driving motor drives first gear and rotates, and first gear and second gear meshing, and then the drive connecting axle takes place to rotate.

Preferably, the driving motor is located outside the housing, and the driving motor is connected with the housing.

Through adopting above-mentioned technical scheme, realized driving motor's fixed.

Preferably, the first and second gears are located within the housing.

Through adopting above-mentioned technical scheme, the casing plays the effect of protection to first gear and second gear.

Preferably, a sealing bearing is arranged between the rotating pipe and the connecting shaft, and the sealing bearings are respectively positioned at two ends of the rotating pipe in the length direction.

Through adopting above-mentioned technical scheme, avoid the air to flow from rotating tube and connecting axle position incasement.

Preferably, the longitudinal section of the blanking channel is C-shaped.

Through adopting above-mentioned technical scheme, the motion trail the same with the disk body avoids the seed to take place to interfere between removal in-process and the unloading passageway.

Preferably, a motor base is arranged at the bottom of the shell, and a first connecting bolt is arranged between the rotating motor and the motor base.

Through adopting above-mentioned technical scheme, realize the connection between motor cabinet and the rotation motor.

Preferably, the side surface of the rotating seat is provided with an avoiding hole which avoids the discharging channel in the rotating process.

Through adopting above-mentioned technical scheme, avoid the ejection of compact through with rotate and take place to interfere between the seat.

Preferably, a side face of the rotating seat in the width direction is provided with a spindle hole, the spindle hole extends outwards along the horizontal direction to form a first clamping groove, the spindle hole is matched with a spindle of the rotating motor, a first locking bolt is arranged on the first clamping groove, the other side face of the rotating seat in the width direction is provided with a rotating sheet, a second connecting bolt is arranged between one end of the rotating sheet and the discharging channel, and the other end of the rotating sheet is rotatably connected with the rotating seat.

Through adopting above-mentioned technical scheme, through first locking bolt, realized the locking to the main shaft of rotating electrical machines, played the effect of fixed rotating electrical machines's main shaft.

Preferably, a connecting sleeve is arranged on the accelerating tube, the top of the connecting sleeve is connected with the bottom of the rotating seat, and the bottom of the connecting sleeve is connected with the accelerating tube.

Through adopting above-mentioned technical scheme, adapter sleeve plays the effect of connecting accelerating tube and rotation seat.

Preferably, the bottom of the connecting sleeve is provided with a second clamping groove, and a second locking bolt is arranged between two sides of each second clamping groove in the width direction.

Through adopting above-mentioned technical scheme, be convenient for accelerate the change and the installation of pipe.

Preferably, the second clamping groove extends in a length direction of the acceleration tube.

Preferably, the second clamping grooves are oppositely arranged.

Preferably, a motor base is arranged at the bottom of the shell, and a first connecting bolt is arranged between the rotating motor and the motor base.

Through adopting above-mentioned technical scheme, realize the connection between motor cabinet and the rotation motor.

Preferably, the side surface of the rotating seat is provided with an avoiding hole which avoids the discharging channel in the rotating process.

Through adopting above-mentioned technical scheme, avoid the ejection of compact through with rotate and take place to interfere between the seat.

Preferably, a side face of the rotating seat in the width direction is provided with a spindle hole, the spindle hole extends outwards along the horizontal direction to form a first clamping groove, the spindle hole is matched with a spindle of the rotating motor, a first locking bolt is arranged on the first clamping groove, the other side face of the rotating seat in the width direction is provided with a rotating sheet, a second connecting bolt is arranged between one end of the rotating sheet and the discharging channel, and the other end of the rotating sheet is rotatably connected with the rotating seat.

Through adopting above-mentioned technical scheme, through first locking bolt, realized the locking to the main shaft of rotating electrical machines, played the effect of fixed rotating electrical machines's main shaft.

Preferably, the accelerating tube is provided with a connecting sleeve, the top of the connecting sleeve is connected with the bottom of the rotating seat, the bottom of the connecting sleeve is connected with the accelerating tube, and the air outlet tube is obliquely and upwards arranged on the connecting sleeve.

Through adopting above-mentioned technical scheme, adapter sleeve plays the effect of connecting accelerating tube and rotation seat.

Preferably, the bottom of the connecting sleeve is provided with a second clamping groove, and a second locking bolt is arranged between two sides of each second clamping groove in the width direction.

Through adopting above-mentioned technical scheme, be convenient for accelerate the change and the installation of pipe.

Preferably, the second clamping groove extends in a length direction of the acceleration tube.

Preferably, the second clamping grooves are oppositely arranged.

Preferably, the mounting holes are uniformly distributed along the circumferential direction of the sowing tray.

By adopting the technical scheme, the seeds are more uniform in the transmission process.

Preferably, six suction holes are arranged.

Preferably, the diameter of the seed suction hole is 3mm-10 mm.

By adopting the technical scheme, the size of the seeds is determined.

Preferably, the seed suction hole comprises an inner hole and an outer hole, the cross section of the inner hole is circular, the outer hole is arranged in the direction of the inner hole deviating from the negative pressure cavity, and the circumferential side surface of the outer hole is inclined outwards.

Through adopting above-mentioned technical scheme, can adapt to the seed that the diameter is different through the outer hole that leans out.

Preferably, the diameter of the inner hole is 4mm-7mm, and the depth of the inner hole is 2mm-4mm

Preferably, the diameter of the outer hole is 8mm-10mm, and the depth of the outer hole is 2mm-4 mm.

Preferably, a mounting hole is formed between every two adjacent seed suction holes, a threaded hole corresponding to the mounting hole is formed in the fixed disc, and a mounting bolt is arranged between the mounting hole and the threaded hole.

Through adopting above-mentioned technical scheme, mounting bolt passes the mounting hole and is connected with the screw hole, and then is connected seeding dish and fixed disk, makes things convenient for the shaping in negative pressure chamber.

The second purpose of the invention is to provide an unmanned aerial vehicle sowing method which has the advantages of high seed dropping precision and high seed dropping efficiency.

The technical purpose of the invention is realized by the following technical scheme: an unmanned aerial vehicle sowing method is characterized in that a seed suction disc is rotatably connected in a shell, a seed suction hole is formed in the seed suction disc, a negative pressure end of an air pump generates negative pressure at the position of the seed suction hole to fix seeds at the position of the seed suction hole, a rotating disc rotates to discharge the seeds into an accelerating tube which vertically faces downwards one by one, and a positive pressure end of the air pump generates positive pressure in the accelerating tube to accelerate the falling of the seeds.

In conclusion, the transportation of the seeds is realized by two steps, one step is the fixation of the seeds, the air suction rotating pipe is connected with an air source through the air suction pipe, so that negative pressure is formed in the negative pressure cavity, the seeds in the shell are sucked to the seed suction hole through the negative pressure, the negative pressure ensures that the seeds cannot fall off from the seed suction hole, the fixation of the seeds is realized, and the fixation effect is good; the second mode is feeding and discharging of seeds, the seeds enter the shell through the feeding hole, the driving device drives the disc body to rotate, the seeds are fixed by the seed suction holes, the seeds are moved into the discharging channel by the rotating disc body and finally blocked by the baffle plate, the seeds fall into the discharging hole to complete transportation and discharging of the seeds, and only one seed can be transported in the same seed suction hole, so that the seeds are transported one by one, and the precision in the unmanned aerial vehicle sowing process is improved; after the unmanned aerial vehicle is lifted off, the rotating motor controls the accelerating tube to rotate from a horizontal state to a vertically downward state, namely, the seeds are in the accelerating tube, and the acceleration can be normally realized; before the unmanned aerial vehicle lands, the rotating motor controls the accelerating tube to rotate from a vertically downward state to a state of being horizontal to the ground, so that the height required by a bottom bracket of the unmanned aerial vehicle is reduced, namely the overall height of the unmanned aerial vehicle is reduced, and the unmanned aerial vehicle has the effect of reducing the occupied space of the unmanned aerial vehicle; meanwhile, in the flying process, the positive pressure generated by the air source not only has a fixed effect on the transportation of the seeds, but also gives an acceleration to the seeds in the accelerating tube by the positive pressure generated by the air source so that the seeds fall faster, and meanwhile, the water surface of the paddy field can be effectively broken through, the seeds are prevented from floating on the water surface, and the device has the advantages of high seed falling precision and high seed falling efficiency; with the unordered direct seeding of prior art kind, can reach the effect of orderly direct seeding through this technical scheme, present unmanned aerial vehicle or ground equipment are direct-seeded and only realize seeding and drill seeding, belong to unordered direct seeding state, and this technical scheme has realized orderly bunch planting, also is one grain direct seeding in line cavitation in law promptly, and field ventilation and illumination condition obtain improving, improve the seedling rate and the rice quality of later stage rice.

Drawings

FIG. 1 is a first schematic structural diagram of an embodiment;

FIG. 2 is a schematic sectional view of the embodiment;

FIG. 3 is a schematic structural view of a driving apparatus of the embodiment;

FIG. 4 is a second schematic structural view of the embodiment;

FIG. 5 is a schematic structural view of the embodiment at the position of the accelerating tube;

FIG. 6 is a schematic structural view of the embodiment after the blanking channel is removed;

FIG. 7 is a schematic structural view of a rotary disk of the embodiment;

in the figure, 1, a housing; 11. a discharge channel; 12. a discharge port; 13. a blanking channel; 131. an opening; 132. a baffle plate; 14. a feed inlet; 15. an air outlet pipe; 21. a rotating seat; 211. avoiding holes; 212. a spindle hole; 213. a first clamping groove; 214. a first locking bolt; 215. a rotating sheet; 216. a second connecting bolt; 22. an accelerating tube; 221. connecting a sleeve; 222. a second clamping groove; 223. a second locking bolt; 23. rotating the motor; 231. a motor base; 232. a first connecting bolt; 3. a tray body; 31. a seeding tray; 311. a seed suction hole; 312. an inner bore; 313. an outer bore; 314. mounting holes; 32. fixing the disc; 321. A negative pressure chamber; 322. a connecting shaft; 323. an air suction passage; 324. an air intake duct; 33. rotating the tube; 332. A gas source; 4. a drive motor; 41. a first gear; 42. a second gear; 43. and sealing the bearing.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Example (b):

as shown in fig. 1 to 7, an unmanned aerial vehicle negative pressure sowing structure comprises a housing 1, a feed inlet 14 is arranged at the top of the housing 1, a discharge outlet 12 is arranged at the bottom of the housing 1, a disc body 3 is arranged in the housing 1, a blanking channel 13 is arranged on the housing 1, as shown in fig. 4, the longitudinal section of the blanking channel 13 is C-shaped, an opening 131 is formed between the top of the blanking channel 13 and the housing 1, the discharge outlet 12 is positioned at the bottom of the blanking channel 13, the disc body 3 is rotatably connected with the housing 1, a seed suction hole 311 is arranged on the disc body 3, a connecting shaft 322 is arranged at the center of the disc body 3, a driving device is connected to the connecting shaft 322, a rotating pipe 33 is arranged in the connecting shaft 322, the rotating pipe 33 is rotatably connected to the connecting shaft 322, one end of the rotating pipe 33 is communicated with the seed suction hole 311, the other end of the rotating pipe 33 is connected with an air suction pipe 324, the air suction pipe 324 is communicated with an air source 332, the gas source 332 of the embodiment is an air pump.

As shown in fig. 4, the driving device drives the disc body 3 to rotate, the driving device includes a driving motor 4, a first gear 41 and a second gear 42, the first gear 41 is connected with a motor shaft of the driving motor 4, the second gear 42 is engaged with the first gear 41, the second gear 42 is disposed on the connecting shaft 322, meanwhile, the first gear 41 and the second gear 42 are both located in the housing 1, the driving motor 4 is located outside the housing 1, the front end of the driving motor 4 is connected with the outside of the housing 1 through a bolt, and a motor shaft of the driving motor 4 extends into the housing 1 and is connected with the first gear 41 in the housing 1.

The driving motor 4 rotates the seed suction hole 311 on the disk body 3 from the inside of the housing 1 to the discharging channel 13 through the opening 131, the housing 1 is provided with a baffle 132 at the position of the discharging hole 12 for limiting the seed on the seed suction hole 311 to enter the housing 1, the baffle 132 is located in the rotating track of the seed suction hole 311, namely, after the seed passes through the baffle 132, the seed is blocked in the discharging hole 12 by the baffle 132.

As shown in fig. 2, a sealing bearing 43 is disposed between the rotating tube 33 and the connecting shaft 322, and the sealing bearings 43 are respectively disposed at two ends of the rotating tube 33 in the length direction and function to seal the rotating tube 33 and the connecting shaft 322.

The seeds referred to in the examples are coated seeds, that is, the seeds are coated into spheres by a chemical coating method.

As shown in fig. 4 to 6, in the present embodiment, only the structure of the connection position between the accelerating tube 22 and the accelerating tube 22 is disclosed, and fig. 1 is a structure of an integral unmanned aerial vehicle seeding device, the seeding principle and the specific structure of which are not related to the present invention and will not be described herein; this unmanned aerial vehicle accelerating tube revolution mechanic includes casing 1, casing 1 is used for holding and the discharge seed, the bottom downwardly extending of casing 1 forms discharging channel 11, discharging channel 11's bottom is provided with discharge gate 12, discharging channel 11's lateral wall rotates and is connected with and rotates seat 21, the bottom of rotating seat 21 is connected with accelerating tube 22, casing 1 bottom is provided with rotates motor 23, the main shaft that rotates motor 23 is connected with rotation seat 21, make to rotate motor 23 drive and rotate seat 21 and rotate and make accelerating tube 22 have two action gestures vertical in ground and level in ground.

As shown in fig. 4 and 5, the connection relationship between the rotating motor 23 and the bottom of the housing 1 is: a motor base 231 is arranged at the bottom of the shell 1, a first connecting bolt 232 is arranged between the rotating motor 23 and the motor base 231, and the shell of the rotating motor 23 is connected with the motor base 231 through two first connecting bolts 232; meanwhile, the side face of the rotating seat 21 is provided with an avoiding hole 211 avoiding the discharging channel 11 in the rotating process, so that the discharging channel 11 and the rotating seat 21 are prevented from interfering in the rotating process, and meanwhile, the avoiding hole 211 plays a certain air supply role in the accelerating process.

As shown in fig. 4 and 5, a spindle hole 212 is formed in one side surface of the rotating base 21 in the width direction, the spindle hole 212 extends outwards in the horizontal direction to form a first clamping groove 213, the spindle hole 212 is matched with a spindle of the rotating motor 23, a first locking bolt 214 is arranged on the first clamping groove 213, the first locking bolt 214 penetrates through and locks the first clamping groove 213, in the rotating process of the first locking bolt 214, the first clamping groove 213 is reduced, and further the spindle of the rotating motor 23 is locked, so that the rotating motor 23 can control the rotating base 21 to rotate integrally in the rotating process, a rotating piece 215 is arranged on the other side surface of the rotating base 21 in the width direction, a second connecting bolt 216 is arranged between one end of the rotating piece 215 and the discharging channel 11, and the other end of the rotating piece 215 is rotatably connected with the rotating base 21.

As shown in fig. 4 and 5, the connection relationship between the accelerating tube 22 and the rotating seat 21 is as follows: the accelerating tube 22 is provided with a connecting sleeve 221, the top of the connecting sleeve 221 is connected with the bottom of the rotating seat 21, the bottom of the connecting sleeve 221 is connected with the accelerating tube 22, the bottom of the connecting sleeve 221 is provided with a second clamping groove 222, a second locking bolt 223 is arranged between two sides of each second clamping groove 222 in the width direction, the second clamping grooves 222 extend along the length direction of the accelerating tube 22, two second clamping grooves 222 are oppositely arranged, and the second locking bolts 223 play a role in locking the accelerating tube 22 in the rotating process; the accelerating tube 22 can be a hard plastic tube or a soft tube as required, the air outlet tube 15 is arranged on the side surface of the connecting sleeve 211, the air outlet tube 15 is communicated with the air source 332, the air source 15 plays a role in accelerating air flow, namely, negative pressure is generated at one end to suck seeds, positive pressure is generated at the position of the accelerating tube 22, and the seeds are discharged.

As shown in fig. 1 to 7, an unmanned aerial vehicle seeding disc structure, including disk body 3, disk body 3 is made by plastics, disk body 3 includes seeding disc 31 and fixed disk 32, seeding disc 31 realizes fixed connection through concatenation and bolt locking with fixed disk 32, it is provided with seed suction hole 311 to run through on the periphery of seeding disc 31, seed suction hole 311 is along the circumferencial direction evenly distributed of seeding disc 31, the connected mode of seeding disc 31 and fixed disk 32 does, be provided with mounting hole 314 between the adjacent seed suction hole 311, the circumferencial direction evenly distributed of seeding disc 31 is followed to mounting hole 314, be provided with the screw hole that corresponds with mounting hole 314 on the fixed disk 32, be provided with mounting bolt between mounting hole 314 and the screw hole, mounting bolt passes behind mounting hole 314, realize the locking with screw hole relative rotation, and then accomplish the fixed of seeding disc 31 and fixed disk 32.

Meanwhile, as shown in fig. 2, a negative pressure cavity 321 is formed between the sowing disc 31 and the fixed disc 32, the negative pressure cavity 321 is formed by inward recessing of the fixed disc 32, the center of the fixed disc 32 extends outwards to form a connecting shaft 322, meanwhile, a suction channel 323 is arranged in the connecting shaft 322, the suction channel 323 is connected with a gas source, such as an air pump, through a suction pipe 324, and the connecting shaft 322 also plays a role in connecting with a motor and controlling the rotation of the sowing disc 31.

As shown in fig. 7, the seed suction holes 311 are uniformly distributed along the circumferential direction of the sowing plate 31, six seed suction holes 311 are provided, six mounting holes 314 are also provided between the seed suction holes 311, the diameter of the seed suction holes 311 is 3mm to 10mm, the seed suction holes 311 include an inner hole 312 and an outer hole 313, the cross section of the inner hole 312 is circular, the outer hole 313 is arranged in the direction away from the negative pressure cavity 321 in the inner hole 312, the circumferential side of the outer hole 313 is inclined outwards, wherein the diameter of the inner hole 312 is 4mm to 7mm, the depth of the inner hole 312 is 2mm to 4mm, the diameter of the outer hole 313 is 8mm to 10mm, the depth of the outer hole 313 is 2mm to 4mm, in this embodiment, the diameter of the inner hole 312 is 6mm, the diameter of the outer hole 313 is 9mm, and the sum of the depths of the inner hole 312 and the outer hole 313 is 3.5 mm.

The working principle is as follows:

the air suction channel 323 is communicated with an air source 332, seeds enter the shell 1 through the feed inlet 14, the driving device drives the disc body 3 to rotate, the air source 332 generates negative pressure at the positions of the seed suction holes 311, the seeds are fixed by the seed suction holes 311 under the action of the negative pressure, the negative pressure ensures that the seeds do not fall off from the seed suction holes 311, the seeds are fixed, the disc body 3 is connected with the motor through the connecting shaft 322 at the rear side, the disc body 3 rotates around the connecting shaft 322, the seeds are moved into the blanking channel 13 by the rotating disc body 3 and are blocked by the blocking plate 132 finally, and the seeds are accelerated to be ejected downwards under the action of the positive pressure provided by the accelerating tube 22 and the air source, so that the seeds fall off; meanwhile, after the unmanned aerial vehicle is lifted off, the rotating motor 23 controls the rotating seat 21 to rotate, so that the accelerating tube 22 at the bottom of the rotating seat 21 rotates from a horizontal state to a vertically downward state, namely, after the seeds fall into the accelerating tube 22, the acceleration can be normally realized; before unmanned aerial vehicle descends, rotate motor 23 control and rotate seat 21 and rotate for rotate seat 21 bottom accelerating tube 22 by vertical decurrent state, rotate to the state that is on level with ground, reduced the required height of unmanned aerial vehicle bottom support.