CN117002734A - Sowing device and unmanned aerial vehicle thereof - Google Patents
Sowing device and unmanned aerial vehicle thereof Download PDFInfo
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- CN117002734A CN117002734A CN202311135940.7A CN202311135940A CN117002734A CN 117002734 A CN117002734 A CN 117002734A CN 202311135940 A CN202311135940 A CN 202311135940A CN 117002734 A CN117002734 A CN 117002734A
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- sowing
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- material bin
- materials
- sowing disc
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- 238000009331 sowing Methods 0.000 title claims abstract description 133
- 239000000463 material Substances 0.000 claims abstract description 168
- 238000003892 spreading Methods 0.000 claims abstract description 42
- 238000007599 discharging Methods 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 5
- 238000009826 distribution Methods 0.000 description 11
- 238000004891 communication Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000003337 fertilizer Substances 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 230000001276 controlling effect Effects 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 239000007769 metal material Substances 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 239000008187 granular material Substances 0.000 description 3
- RZVHIXYEVGDQDX-UHFFFAOYSA-N 9,10-anthraquinone Chemical compound C1=CC=C2C(=O)C3=CC=CC=C3C(=O)C2=C1 RZVHIXYEVGDQDX-UHFFFAOYSA-N 0.000 description 2
- 241000209094 Oryza Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000000575 pesticide Substances 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 239000011343 solid material Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 230000004720 fertilization Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- -1 seeds Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C17/00—Fertilisers or seeders with centrifugal wheels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D1/00—Dropping, ejecting, releasing, or receiving articles, liquids, or the like, in flight
- B64D1/16—Dropping or releasing powdered, liquid, or gaseous matter, e.g. for fire-fighting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- B64U2101/00—UAVs specially adapted for particular uses or applications
- B64U2101/40—UAVs specially adapted for particular uses or applications for agriculture or forestry operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- B64U2101/00—UAVs specially adapted for particular uses or applications
- B64U2101/45—UAVs specially adapted for particular uses or applications for releasing liquids or powders in-flight, e.g. crop-dusting
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Sowing (AREA)
Abstract
The application provides a sowing device with a cap peak and an unmanned aerial vehicle thereof, wherein the sowing device comprises: the material bin is used for storing materials, and the materials are led out of the material bin through a discharging unit connected with the material bin; the sowing disc is positioned below the blanking unit and can rotate on a rotating plane and is used for throwing out materials led in by the blanking unit through centrifugal force; the driving device is connected with the sowing disc and used for driving the sowing disc to rotate; the cap peak is arranged above the sowing disc and is in a hollow round table shape and is used for rebounding the thrown material to ensure that the sowing width of the material is R f When the height H of the sowing disc is 3 meters, the included angle theta between the inner side surface of the cap peak and the horizontal plane accords with the relation: r is R f ＝10.409θ 2 16.058 theta +8.9132, whereby controlled broadcasting can be achievedThe spreading width is reduced, the spreading density is increased, and the spreading effect is improved.
Description
Technical Field
The application relates to the field of unmanned aerial vehicles, and in particular relates to a sowing device with a hat brim and an unmanned aerial vehicle with the sowing device.
Background
In modern agricultural production, the sowing of materials in the form of particles or powder, such as seeds, fertilizers and the like, is often required, and with the continuous development of agriculture modernization and precision agriculture, the development of agricultural machinery provides great convenience for the agriculture modernization. The system can be used for carrying a sowing system on an unmanned aerial vehicle, and an efficient and convenient operation method is provided for agricultural modernization in the scenes such as rice sowing, fertilization and the like.
At present, unmanned aerial vehicle's system of scattering is when broadcasting the material, mainly throws away material granule through the centrifugation and gets rid of the dish level, and the material is thrown away by getting rid of the dish and is parabolic motion. The emergent speed and angle of the thrown objects often lead to overlarge breadth, sparse materials and poor sowing effect.
Disclosure of Invention
The application provides a sowing device and an unmanned aerial vehicle thereof, wherein the hat brim which forms a certain angle with a sowing disc is arranged, so that the emergent angle of materials can be limited, the width is reduced, the density is increased, and the sowing effect is improved.
In a first aspect, there is provided a spreading device comprising: the material bin is used for storing materials, and the materials are led out of the material bin through a discharging unit connected with the material bin; the sowing disc is positioned below the blanking unit and is used for rotating on a rotating plane to throw out materials imported by the blanking unit through centrifugal force; the driving device is connected with the sowing disc and used for driving the sowing disc to rotate; the cap peak is arranged above the sowing disc and is in a hollow round table shape and is used for rebounding the thrown material to ensure that the sowing width of the material is R f When the height H of the sowing disc is 3 meters, the included angle theta between the inner side surface of the cap peak and the horizontal plane accords with the following relation: r is R f ＝10.409θ 2 -16.058θ+8.9132。
With reference to the first aspect, in certain implementation manners of the first aspect, raised guide strips are provided on the sowing disc, and the guide strips are uniformly distributed on the sowing disc.
According to the scheme of the application, the emergent angle of the material can be limited, the breadth is reduced, the density is increased, and the sowing effect is improved.
Second squareThe face provides a scattering device, and the device includes: the material bin is used for storing materials, and the materials are led out of the material bin through a discharging unit connected with the material bin; the sowing disc is positioned below the blanking unit and is used for rotating on a rotating plane to throw out materials imported by the blanking unit through centrifugal force; the driving device is connected with the sowing disc and used for driving the sowing disc to rotate; the cap peak is arranged above the sowing disc and is in a hollow round table shape and is used for rebounding the thrown material to ensure that the sowing width of the material is R f The height of the sowing disc is H, when the sowing width is R f When the angle theta between the inner side surface of the cap peak and the horizontal plane is set to be 4 meters, the following relational expression is satisfied: h= -7.5195 θ 3 +7.7016θ 2 +4.3058θ+0.4412。
With reference to the second aspect, in some implementations of the second aspect, raised guide strips are provided on the sowing tray, and the guide strips are uniformly distributed on the sowing tray.
In a third aspect, there is provided a drone, the drone comprising: a fuselage for providing flight power and controlling flight; the bracket is arranged below the machine body; the sowing device is connected to the bracket; wherein, the sowing device includes: the material bin is used for storing materials, and the materials are led out of the material bin through a discharging unit connected with the material bin; the sowing disc is positioned below the blanking unit and is used for rotating on a rotating plane to throw out materials imported by the blanking unit through centrifugal force; the driving device is connected with the sowing disc and used for driving the sowing disc to rotate; the cap peak is arranged above the sowing disc and is in a hollow round table shape and is used for rebounding the thrown material to ensure that the sowing width of the material is R f When the height H of the sowing disc is 3 meters, the included angle theta between the inner side surface of the cap peak and the horizontal plane accords with the following relation: r is R f ＝10.409θ 2 -16.058θ+8.9132。
With reference to the third aspect, in some implementations of the third aspect, raised guide strips are provided on the sowing tray, and the guide strips are uniformly distributed on the sowing tray.
In a fourth aspect, there is provided an unmanned aerial vehicle comprising: a fuselage for providing flight power and controlling flight; the bracket is arranged below the machine body; the sowing device is connected to the bracket;wherein, the sowing device includes: the material bin is used for storing materials, and the materials are led out of the material bin through a discharging unit connected with the material bin; the sowing disc is positioned below the blanking unit and is used for rotating on a rotating plane to throw out materials imported by the blanking unit through centrifugal force; the driving device is connected with the sowing disc and used for driving the sowing disc to rotate; the cap peak is arranged above the sowing disc and is in a hollow round table shape and is used for rebounding the thrown material to ensure that the sowing width of the material is R f The height of the sowing disc is H, when the sowing width is R f When the angle theta between the inner side surface of the cap peak and the horizontal plane is set to be 4 meters, the following relational expression is satisfied: h= -7.5195 θ 3 +7.7016θ 2 +4.3058θ+0.4412。
With reference to the fourth aspect, in some implementations of the fourth aspect, raised guide strips are provided on the sowing tray, and the guide strips are uniformly distributed on the sowing tray.
Drawings
Fig. 1 is a schematic diagram of a sowing device according to an embodiment of the present application.
Fig. 2 is a schematic view of a cap peak and a spreading plate according to an embodiment of the present application.
Fig. 3 is a schematic diagram of a material scattering analysis according to an embodiment of the present application.
Fig. 4 is a schematic diagram of material rebound analysis according to an embodiment of the present application.
Fig. 5 is a schematic diagram of parabolic analysis of a material according to an embodiment of the present application.
Fig. 6 is a graph showing a fitting relationship between a cap peak bottom angle and a sowing height according to an embodiment of the present application.
Fig. 7 is a graph showing another fitting relationship between the visor base angle and the sowing height provided in the application example.
Detailed Description
The technical scheme of the application will be described below with reference to the accompanying drawings.
The terms "comprising" and "having" and any variations thereof in the embodiments of the application shown below are intended to cover a non-exclusive inclusion, such that a system, article, or apparatus that comprises a list of elements is not necessarily limited to those elements expressly listed but may include other elements not expressly listed or inherent to such article or apparatus.
In embodiments of the application, the words "exemplary" or "such as" are used to mean examples, illustrations, or descriptions, and embodiments or designs described as "exemplary" or "such as" should not be construed as preferred or advantageous over other embodiments or designs. The use of the word "exemplary" or "such as" is intended to present the relevant concepts in a concrete fashion to facilitate understanding.
Fig. 1 is a schematic diagram of a spreading device 100 according to an embodiment of the present application.
As shown in fig. 1, the sowing device includes at least:
a material bin 110 for storing material.
It will be appreciated that the material may be solid particles of seeds, fertiliser, feed or pesticide, as the application is not limited in this regard.
The shape, size and material of the material bin 110 are not limited in the embodiments of the present application. Those skilled in the art may choose or design the device according to actual needs. Illustratively, the upper portion of the material bin 110 may be barrel-shaped, the bottom of the material bin may be inverted funnel-shaped, and may be made of plastic material, stable in performance, not easy to deform, and light in weight. Still another exemplary embodiment of the material bin 110 may have a box shape at the upper portion and an inverted funnel shape at the bottom, and the material may be a metal material with high strength and stable performance.
And the discharging unit 120 is connected with the material bin 110, and the materials in the material bin 110 are led out of the material bin through the discharging unit 120.
It should be appreciated that in some embodiments, the blanking unit may be provided integrally with the material bin, or the blanking unit may be provided as a separate component below the material bin. However, the materials are led out of the material bin through the blanking unit, and the specific arrangement mode of the blanking unit is not limited in the embodiment of the application.
In some embodiments, a regulating valve may be disposed in the blanking unit, and the regulating valve is used to regulate the quantity and speed of the material passing through.
As shown in fig. 2, the spreading plate 130 is located below the discharging unit 120 and is rotatable on a rotation plane for throwing out the material introduced by the discharging unit by centrifugal force.
The spreading disc 130 is provided with raised guide strips which are uniformly distributed on the spreading disc.
Illustratively, the guide strips may be straight strips of projections disposed along the radius of the circle of the distribution plate and evenly distributed about the center of the circle.
Also illustratively, the deflector strips may be curved, strip-like projections that are centrally symmetrically distributed about the center of the disc.
The driving device 140 is connected to the spreading plate 130, and drives the spreading plate 130 to rotate.
It should be understood that the driving device may be disposed above or below the sowing tray, and the sowing tray is connected through a transmission structure, and the location and manner of disposing the driving device are not limited in the present application.
The rotation of the sowing disc generates centrifugal force, solid granular materials falling on the sowing disc are thrown out of the sowing disc in a centrifugal mode, and the solid materials in the sowing disc are thrown out under the action of centrifugal force due to the gravity, centrifugal force and upward reaction force of the sowing disc to the particles and the supporting force of the guide strips.
Illustratively, the material of the distribution plate 130 is not limited, and those skilled in the art can choose or design according to actual needs. In some embodiments, the overall shape of the distribution plate 130 may be disk-shaped, and the entire distribution plate 130 may be made of a metallic material. In other embodiments, the distribution plate 130 may be made of a plastic material.
It should be understood that the material is thrown out by the sowing disc to do parabolic motion, the emergent speed and angle of the material often lead to overlarge material width and sparse material, so the application provides a sowing device which limits the emergent angle by adding a cap peak on the sowing device, reduces the width and increases the sowing density.
The cap peak 150 is arranged above the sowing disc 130 and is in the shape of a hollow round table, and is used for rebounding the thrown material to ensure that the sowing width of the material is R f When sowingWhen the disk height H is 3 meters, the included angle theta between the inner side surface of the cap peak and the horizontal plane accords with the following relation:
R f ＝10.409θ 2 -16.058θ+8.9132。
the cap peak may be mounted by being clamped to the bracket, or by being connected to the bracket by a bolt, or by being connected to the bracket by a hinge, or by other connection means, which is not limited in the present application.
It should be understood that in embodiments of the present application, the bill may also be referred to as a baffle, a reflector, etc., as the present application is not limited in this regard.
The bottom angle theta of the cap peak can be adjusted according to the needs, and the cap peak is suitable for the situation that the sowing width needs to be frequently adjusted. The adjustable hat brim consists of two parts, wherein one part is a bracket fixed around the throwing disc, the other part is a hat brim which can be adjusted at any time, and the sowing width can be controlled by adjusting the angle of the hat brim.
Generally, if the spreading width is reduced, the bottom angle of the cap peak can be adjusted to be larger, so that the range of the spreading disc for spreading materials is limited. If the sowing width is required to be increased, the bottom angle of the hat peak can be adjusted to be smaller, so that the range of the sowing disc for sowing materials is enlarged.
According to the embodiment of the application, the cap peak with a certain angle with the sowing disc is arranged, so that the emergent angle of materials can be limited, the sowing width is reduced, the sowing density is increased, and the sowing effect is improved.
The embodiment of the application provides an unmanned aerial vehicle.
It should be appreciated that the unmanned aerial vehicle may be a rotary-wing unmanned aerial vehicle, a fixed-wing unmanned aerial vehicle, an unmanned helicopter, or a fixed-wing-rotor hybrid unmanned aerial vehicle, or the like. Wherein, rotor unmanned vehicles includes many rotor unmanned vehicles. The multi-rotor unmanned aerial vehicle comprises a two-rotor unmanned aerial vehicle, a four-rotor unmanned aerial vehicle, a six-rotor unmanned aerial vehicle, an eight-rotor unmanned aerial vehicle, a ten-rotor unmanned aerial vehicle or a twelve-rotor unmanned aerial vehicle and the like. The unmanned aerial vehicle can also carry out wireless communication or wired communication with the control terminal, thereby operate unmanned aerial vehicle through the control terminal.
The unmanned aerial vehicle comprises a fuselage for providing flight power and controlling flight.
And the bracket is arranged below the machine body.
It should be understood that the fuselage is a structural carrier of the unmanned aerial vehicle, and is used for installing control devices such as a flight control main board and parts such as a battery, so that flight power can be provided, and flight direction, angle and height can be controlled. Simultaneously, a support for supporting unmanned aerial vehicle take off and land can be through screw fastening connection in the lower part of fuselage. The support can be a fixed foot rest, and is in an open state in the flight operation process of the unmanned aerial vehicle so as to land and land at any time. Other accessories required by the unmanned aerial vehicle can be fixedly installed on the bracket. The application does not limit the arrangement of the unmanned plane body and the bracket.
And the sowing device is connected to the bracket.
It should be understood that the spreading device is the spreading device in the above embodiment, and reference may be made to the description above, which is not repeated here.
As shown in FIG. 3, after the material falls on the spreading disc, the material is pulled by the spreading disc to do circular motion, and the moving speed can be decomposed into tangential speed Vt and radial speed Vr when the material leaves the spreading disc, and the tangential included angle is alpha.
The rotation angular velocity of the spreading disc is omega, and the radius is R s Tangential velocity V of material leaving the spreading disc t ：
V t ＝ωR s 。
As shown in fig. 3, the radial velocity is analyzed in a non-inertial frame. The material moves radially along the guide strips on the spreading disc. Tangential to the circumference, the material is subjected to Coriolis force F c And the supporting force N of the guide strip, and N=F co . In the radial direction, the material is subjected to centrifugal force F ce And the friction force f acts to accelerate the motion in the radial direction. Assuming that the material falls at the drop point radius r on the spreading disc, irrespective of friction, the radial velocity of the material when leaving the spreading disc:
the emergent speed V of the material leaving the scattering disc is as follows:
as shown in fig. 4, the material flies out of the throwing disc and flies towards the hat brim to strike the hat brim, and the radius of the striking point is R m . The included angle between the impact speed and the projection of the normal line of the cap peak surface on the XY plane can be calculated:
as shown in figure 5, when the material rebounds from the cap peak, the material will perform parabolic motion with an initial velocity of V and an included angle with the horizontal plane ofAt the moment, the seeds fall onto the ground under the influence of gravity and air resistance, and different sowing widths R can be obtained corresponding to different initial vertical heights H f 。
The gravity acceleration of the crane is g, the material is spherical, the diameter is d, the density is rho, and the air resistance coefficient is 25 ℃ under standard atmospheric pressureThen a material track parameter equation can be obtained so as to calculate the flight track and the drop point after the material rebounds:
the material impacts the cap peak and bounces, and the reflecting speed is equal to the incident speed without considering the energy loss in the material rebound processThe direction of the reflection is related to the base angle of the cap peak and the direction of the incident speed, and the base angle theta of the cap peak can be calculated according to the reflection theorem and accords with the following formula:
illustratively, the radius of the spreading disc is 0.12 m, the material is spread at 1000 rpm, the density of the material is 1000 kg/cube, the radius of the material is 0.002 m (e.g. compound fertilizer), and the spreading height is 3 m, so that the relationship between the cap peak angle and the material spreading width can be calculated according to the method 200, and some of the results are shown in table 1.
The sowing width of the material is the horizontal distance from the rebound point of the material on the cap peak to the landing of the material.
Table 1 relationship between the bottom angle of the cap peak and the sowing width at a height H of 3 m
| θ (radian) | Sowing width R f (Rice) |
| 0 | 8.827 |
| 0.05 | 8.157 |
| 0.1 | 7.470 |
| 0.15 | 6.791 |
| 0.2 | 6.146 |
| 0.25 | 5.550 |
| 0.3 | 5.013 |
| 0.35 | 4.540 |
| 0.4 | 4.128 |
| 0.45 | 3.775 |
| 0.5 | 3.477 |
| 0.55 | 3.231 |
| 0.6 | 3.034 |
| 0.65 | 2.884 |
| 0.7 | 2.782 |
| 0.75 | 2.726 |
As shown in fig. 6, fitting the data in table 1 can result in:
R f ＝10.409θ 2 -16.058θ+8.9132。
also by way of example, the radius of the spreading disc is 0.12 m, the material is spread at 1000 rpm, the density of the material is 1000 kg/cube, the radius of the material is 0.002 m (e.g. compound fertilizer), and the spreading width is 3 m, so that the relationship between the cap peak angle and the height of the spreading disc can be calculated according to the method 200 described above, and some of the results are shown in table 2.
TABLE 2 relationship between cap peak bottom angle and spreading height when spreading width is 4 meters
As shown in fig. 7, fitting the data in table 2 can result in:
H＝-7.5195θ 3 +7.7016θ 2 +4.3058θ+0.4412。
thus, the embodiment of the application provides another sowing device.
The sowing device at least comprises:
and the material bin is used for storing materials.
It will be appreciated that the material may be solid particles of seeds, fertiliser, feed or pesticide, as the application is not limited in this regard.
The embodiment of the application does not limit the shape, the size and the material of the material bin. Those skilled in the art may choose or design the device according to actual needs. Illustratively, the upper part of the material bin can be barrel-shaped, the bottom of the material bin is inverted funnel-shaped, and the material bin can be made of plastic materials, so that the material bin is stable in performance, not easy to deform and light in weight. Still another example, the upper portion shape of material storehouse can be the box, and the bottom is the funnel form of inversion, and the material can be the metallic material, and intensity is high, stable performance.
And the discharging unit is connected with the material bin, and materials in the material bin are led out of the material bin through the discharging unit.
It should be appreciated that in some embodiments, the blanking unit may be provided integrally with the material bin, or the blanking unit may be provided as a separate component below the material bin. However, the materials are led out of the material bin through the blanking unit, and the specific arrangement mode of the blanking unit is not limited in the embodiment of the application.
In some embodiments, a regulating valve may be disposed in the blanking unit, and the regulating valve is used to regulate the quantity and speed of the material passing through.
The scattering disc is positioned below the blanking unit and can rotate on a rotating plane, and is used for throwing out materials imported by the blanking unit through centrifugal force.
The spreading disc is provided with raised flow guiding strips which are uniformly distributed on the spreading disc.
Illustratively, the guide strips may be straight strips of projections disposed along the radius of the circle of the distribution plate and evenly distributed about the center of the circle.
Also illustratively, the deflector strips may be curved, strip-like projections that are centrally symmetrically distributed about the center of the disc.
The driving device is connected with the sowing disc and drives the sowing disc to rotate.
It should be understood that the driving device may be disposed above or below the sowing tray, and the sowing tray is connected through a transmission structure, and the location and manner of disposing the driving device are not limited in the present application.
The rotation of the sowing disc generates centrifugal force, solid granular materials falling on the sowing disc are thrown out of the sowing disc in a centrifugal mode, and the solid materials in the sowing disc are thrown out under the action of centrifugal force due to the gravity, centrifugal force and upward reaction force of the sowing disc to the particles and the supporting force of the guide strips.
Illustratively, the material of the distribution plate is not limited, and those skilled in the art can choose or design the distribution plate according to actual needs. In some embodiments, the overall shape of the distribution plate may be disk-shaped, and the entire distribution plate may be made of a metallic material. In other embodiments, the distribution plate may be made of a plastic material.
It should be understood that the material is thrown out by the sowing disc to do parabolic motion, and the emergent speed and angle of the material often lead to overlarge material width and sparse material, so the application provides a sowing device.
The cap peak is arranged above the sowing disc and is in a hollow round table shape and is used for rebounding the thrown material to ensure that the sowing width of the material is R f When the broadcasting amplitude is R f When the angle is 4 meters, the included angle theta between the inner side surface of the cap peak and the horizontal plane accords with the following relation:
H＝-7.5195θ 3 +7.7016θ 2 +4.3058θ+0.4412。
according to the embodiment provided by the application, when the sowing width is fixed, the bottom angle of the cap peak can be adjusted according to the sowing height, so that the emergent angle of materials can be limited, the width is reduced, and the density is increased.
The embodiment of the application provides an unmanned aerial vehicle.
It should be appreciated that the unmanned aerial vehicle may be a rotary-wing unmanned aerial vehicle, a fixed-wing unmanned aerial vehicle, an unmanned helicopter, or a fixed-wing-rotor hybrid unmanned aerial vehicle, or the like. Wherein, rotor unmanned vehicles includes many rotor unmanned vehicles. The multi-rotor unmanned aerial vehicle comprises a two-rotor unmanned aerial vehicle, a four-rotor unmanned aerial vehicle, a six-rotor unmanned aerial vehicle, an eight-rotor unmanned aerial vehicle, a ten-rotor unmanned aerial vehicle or a twelve-rotor unmanned aerial vehicle and the like. The unmanned aerial vehicle can also carry out wireless communication or wired communication with the control terminal, thereby operate unmanned aerial vehicle through the control terminal.
The unmanned aerial vehicle comprises a fuselage for providing flight power and controlling flight.
And the bracket is arranged below the machine body.
It should be understood that the fuselage is a structural carrier of the unmanned aerial vehicle, and is used for installing control devices such as a flight control main board and parts such as a battery, so that flight power can be provided, and flight direction, angle and height can be controlled. Simultaneously, a support for supporting unmanned aerial vehicle take off and land can be through screw fastening connection in the lower part of fuselage. The support can be a fixed foot rest, and is in an open state in the flight operation process of the unmanned aerial vehicle so as to land and land at any time. Other accessories required by the unmanned aerial vehicle can be fixedly installed on the bracket. The application does not limit the arrangement of the unmanned plane body and the bracket.
And the sowing device is connected to the bracket.
It should be understood that the spreading device is the spreading device in the above embodiment, and reference may be made to the description above, which is not repeated here.
In the several embodiments provided by the present application, it should be understood that the disclosed apparatus may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
It is to be understood that the various embodiments may be used independently or in combination based on some intrinsic or extrinsic relationship, and that the various implementations of the embodiments may be used independently or in combination.
The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (8)
1. A sowing apparatus, comprising:
the material bin is used for storing materials, and the materials are led out of the material bin through a blanking unit connected with the material bin;
the sowing disc is positioned below the blanking unit and is used for rotating on a rotating plane to throw out materials led in by the blanking unit through centrifugal force;
the driving device is connected with the sowing disc and used for driving the sowing disc to rotate;
the cap peak is arranged above the sowing disc and is in a hollow round table shape, and the material which is used for rebound and throwing out is enabled to be in an R shape f When the height H of the sowing disc is 3 meters, the included angle theta between the inner side surface of the cap peak and the horizontal plane accords with the following relation:
R f ＝10.409θ 2 -16.058θ+8.9132。
2. the spreading device according to claim 1, wherein the spreading disc is provided with raised guide strips, said guide strips being evenly distributed over the spreading disc.
3. A sowing apparatus, comprising:
the material bin is used for storing materials, and the materials are led out of the material bin through a blanking unit connected with the material bin;
the sowing disc is positioned below the blanking unit and is used for rotating on a rotating plane to throw out materials led in by the blanking unit through centrifugal force;
the driving device is connected with the sowing disc and used for driving the sowing disc to rotate;
the cap peak is arranged above the sowing disc and is in a hollow round table shape, and the material which is used for rebound and throwing out is enabled to be in an R shape f The height of the sowing disc is H, and when the sowing width is R f When the angle θ between the inner side surface of the cap peak and the horizontal plane is set to be 4 meters, the angle θ accords with the following relation:
H＝-7.5195θ 3 +7.7016θ 2 +4.3058θ+0.4412。
4. a spreading device according to claim 3 wherein the spreading disc is provided with raised deflector strips which are evenly distributed over the spreading disc.
5. An unmanned aerial vehicle, comprising:
a fuselage for providing flight power and controlling flight;
the bracket is arranged below the machine body;
the sowing device is connected to the bracket;
wherein, the scattering device includes:
the material bin is used for storing materials, and the materials are led out of the material bin through a blanking unit connected with the material bin;
the sowing disc is positioned below the blanking unit and is used for rotating on a rotating plane to throw out materials led in by the blanking unit through centrifugal force;
the driving device is connected with the sowing disc and used for driving the sowing disc to rotate;
the cap peak is arranged above the sowing disc and is in a hollow round table shape, and the material which is used for rebound and throwing out is enabled to be in an R shape f When the height H of the sowing disc is 3 meters, the included angle theta between the inner side surface of the cap peak and the horizontal plane accords with the following relation:
R f ＝10.409θ 2 -16.058θ+8.9132。
6. the unmanned aerial vehicle of claim 5, wherein raised deflector strips are provided on the spreader plate, the deflector strips being evenly distributed on the spreader plate.
7. An unmanned aerial vehicle, comprising:
a fuselage for providing flight power and controlling flight;
the bracket is arranged below the machine body;
the sowing device is connected to the bracket;
wherein, the scattering device includes:
the material bin is used for storing materials, and the materials are led out of the material bin through a blanking unit connected with the material bin;
the sowing disc is positioned below the blanking unit and is used for rotating on a rotating plane to throw out materials led in by the blanking unit through centrifugal force;
the driving device is connected with the sowing disc and used for driving the sowing disc to rotate;
the cap peak is arranged above the sowing disc and is in a hollow round table shape, and the material which is used for rebound and throwing out is enabled to be in an R shape f The height of the sowing disc is H, and when the sowing width is R f When the angle θ between the inner side surface of the cap peak and the horizontal plane is set to be 4 meters, the angle θ accords with the following relation:
H＝-7.5195θ 3 +7.7016θ 2 +4.3058θ+0.4412。
8. the unmanned aerial vehicle of claim 7, wherein raised deflector strips are provided on the spreader plate, the deflector strips being evenly distributed on the spreader plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202311135940.7A CN117002734A (en) | 2023-09-04 | 2023-09-04 | Sowing device and unmanned aerial vehicle thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311135940.7A CN117002734A (en) | 2023-09-04 | 2023-09-04 | Sowing device and unmanned aerial vehicle thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117426189A (en) * | 2023-12-06 | 2024-01-23 | 华南农业大学 | Centrifugal disc sowing uniformity improvement method and device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117426189A (en) * | 2023-12-06 | 2024-01-23 | 华南农业大学 | Centrifugal disc sowing uniformity improvement method and device |
| CN117426189B (en) * | 2023-12-06 | 2024-06-25 | 华南农业大学 | Centrifugal disc sowing uniformity improvement method and device |
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