阅读说明：本技术 一种多旋翼植保无人机的种肥两用撒播装置 (Seed and fertilizer dual-purpose broadcasting device of multi-rotor-wing plant protection unmanned aerial vehicle ) 是由 伍志军 石盛材 邓浩 丁洋 韩琦 李俊乐 成亮 于 2021-10-21 设计创作，主要内容包括：本发明涉及撒播技术领域,具体涉及一种多旋翼植保无人机的种肥两用撒播装置,包括种箱、出料筒、第二电机和甩盘机构,所述种箱为底端敞口的长方体壳体结构,水平布置的所述出料筒固定在所述种箱的底端并与其内部连通。本发明中,通过在种箱的下方设置有出料筒,利用出料筒内侧的螺旋出料轴能够将种箱内侧的种子或者肥料转移至出料筒中部的敞口排出,通过第二电机带动甩盘机构旋转,从而实现甩盘机构上种子或者肥料的离心运动,做离心运动的种子或者肥料被甩出后撞击在侧壁倾斜布置的方口挡环上,再被反弹掉落到地面,实现种肥的均匀播撒,且反弹时的作用力能够提高种肥下落的速率,增大种肥播撒入土深度,降低了外界因素对种肥撒播的影响程度。(The invention relates to the technical field of broadcasting, in particular to a seed and fertilizer dual-purpose broadcasting device of a multi-rotor-wing plant protection unmanned aerial vehicle. According to the seed and fertilizer uniform spreading device, the discharging barrel is arranged below the seed box, seeds or fertilizers on the inner side of the seed box can be transferred to the opening in the middle of the discharging barrel to be discharged by the aid of the spiral discharging shaft on the inner side of the discharging barrel, the disc throwing mechanism is driven to rotate by the second motor, centrifugal motion of the seeds or the fertilizers on the disc throwing mechanism is achieved, the seeds or the fertilizers which do centrifugal motion are thrown out and then impact on the square opening baffle ring which is obliquely arranged on the side wall, and then rebound and fall onto the ground, uniform spreading of the seed and fertilizers is achieved, the falling speed of the seed and fertilizers can be improved by acting force during rebound, the spreading depth of the seed and fertilizers into the soil is increased, and the influence degree of external factors on the seed and fertilizer spreading is reduced.)

1. The utility model provides a dual-purpose device of broadcasting of seed manure of many rotors plant protection unmanned aerial vehicle, its characterized in that includes seed case (1), goes out feed cylinder (2), second motor (4) and gets rid of a set mechanism (5), seed case (1) is the open cuboid shell structure in bottom, and the level is arranged go out feed cylinder (2) and fix in the bottom of seed case (1) and communicate with its inside, goes out the inside of feed cylinder (2) and connects spiral play material axle (21) through bearing rotation on its horizontal axis, goes out the outside fixed mounting panel (22) of feed cylinder (2) one end, first motor (24) are installed to one side of mounting panel (22), and the motor shaft of first motor (24) runs through mounting panel (22) and is connected rather than rotating, and the motor shaft of first motor (24) with spiral play material axle (21) are located the mounting panel (22) outside and serve all fixedly cup joint the belt pulley, and rotate between two belt pulleys and cup joint interlock belt (25), the open that is used for the blowing is offered to the intermediate position of play feed cylinder (2) bottom, and the below of going out feed cylinder (2) is provided with and is used for broadcasting even square mouth fender ring (3), is used for evenly broadcasting get rid of a set mechanism (5) and arrange the inboard that keeps off ring (3) at the square mouth, the drive gets rid of a set mechanism (5) second motor (4) are arranged at the top that keeps off ring (3) at the square mouth, the lateral wall that keeps off ring (3) all inclines to be arranged.

2. The dual-purpose seed and fertilizer spreading device of multi-rotor plant protection unmanned aerial vehicle of claim 1, wherein the square opening of the square opening baffle ring (3) is fixed with a connecting frame (31), the upper surface of the connecting frame (31) is fixed with a second flange (32) through screws, the bottom opening of the discharging barrel (2) is fixed with a first flange (23) which is fixedly used with the second flange (32), the second motor (4) is fixed at the center of the bottom surface of the connecting frame (31), and the center of the top surface of the connecting frame (31) is located at the inner side of the second flange (32) and is fixed with a conical protrusion (33).

3. The dual-purpose seed and fertilizer spreading device of the multi-rotor plant protection unmanned aerial vehicle according to claim 1, wherein a cross fixing frame (41) is fixed on a motor shaft of the second motor (4), the flail disk mechanism (5) comprises a circular flail disk (53) and a flail ring (51) fixed with the cross fixing frame (41), the middle of the circular flail disk (53) is recessed, the flail ring (51) is located at the recessed position of the middle of the circular flail disk (53), a plurality of first poking teeth (52) are uniformly fixed on the top surface of the flail ring (51), a plurality of groups of first threaded holes (511) are uniformly formed on the bottom surface of the flail ring (51), second poking teeth (54) are fixed on the outer side of the top surface of the circular flail disk (53) corresponding to the positions of the first poking teeth (52), and second threaded holes (532) are formed on the circular flail disk (53) corresponding to the positions of the plurality of first threaded holes (511), and the inner side of the second threaded hole (532) is screwed with the fixed connecting screw (531), the top end of the connecting screw (531) is screwed with the first threaded hole (511) at the corresponding position, and one side surface of the second shifting tooth (54) is an arc-shaped surface.

4. The dual-purpose seed and fertilizer spreading device of the multi-rotor plant protection unmanned aerial vehicle as claimed in claim 3, wherein a sliding groove (541) is formed in the other side surface of the second shifting tooth (54) along the horizontal direction, a square sliding plate (542) is connected to the inner side of the sliding groove (541) in an embedded manner in a sliding manner, the flail disk mechanism (5) further comprises a hinged rod (55) and a connecting rod (56), one end of the hinged rod (55) is arranged on the inner side of a connecting groove (521) formed in one end of the adjacent first shifting tooth (52), one end of the hinged rod (55) is rotatably connected with the inner side of the connecting groove (521) through a rotating shaft, the other end of the hinged rod (55) is attached to one end of the connecting rod (56), the other end of the hinged rod (55) is connected with one end of the connecting rod (56) through a fixing bolt (551), and one end of the other end of the connecting rod (56) is provided with the adjacent square sliding plate (542) in a rotating manner in a penetrating manner And a set screw (561) is connected.

5. The dual-purpose seed and fertilizer spreading device of the multi-rotor plant protection unmanned aerial vehicle as claimed in claim 3, wherein a position of the swing ring (51) corresponding to the connecting rod (56) is provided with a limit slot (512).

6. The dual-purpose seed and fertilizer spreading device of the multi-rotor plant protection unmanned aerial vehicle as claimed in claim 4, wherein the included angle between the first shifting tooth (52) and the adjacent second shifting tooth (54) is 165-180 degrees.

7. The dual-purpose seed and fertilizer spreading device of the multi-rotor plant protection unmanned aerial vehicle as claimed in claim 3, wherein the top end of the inner annular surface of the throwing ring (51) and the top opening of the recess on the circular throwing disk (53) are both provided with bevel opening structures.

8. The dual-purpose seed and fertilizer spreading device of the multi-rotor plant protection unmanned aerial vehicle as claimed in claim 2, wherein the tip of the conical protrusion (33) faces upwards, and the diameter of the bottom surface of the conical protrusion (33) is equal to the outer diameter of the second motor (4).

9. The dual-purpose seed and fertilizer spreading device of the multi-rotor plant protection unmanned aerial vehicle of claim 4, wherein two side edges of the square sliding plate (542) are in contact with the upper and lower side walls of the sliding groove (541), and the thickness of the square sliding plate (542) is smaller than the depth of the sliding groove (541).

Technical Field

The invention relates to the technical field of broadcast sowing, in particular to a seed and fertilizer dual-purpose broadcast sowing device of a multi-rotor-wing plant protection unmanned aerial vehicle.

Background

The rapid development of the unmanned aerial vehicle industry and the proposal of the precise agricultural aviation concept lead the agricultural unmanned aerial vehicle to be produced at the same time. Agricultural unmanned aerial vehicle has that the suitability is good, efficient, control personnel factor of safety height and crop damage advantage such as little.

In sowing, sowing in traditional agriculture includes at least two procedures of seed soaking and seedling raising from seed selection to seedling insertion into a field. In any process, a great deal of effort is required. In the aspect of fertilization, manual fertilization is high in labor intensity and low in efficiency, and poses a threat to the health of operators. At present, unmanned aerial vehicle is more and more common in agricultural application, and plant protection unmanned aerial vehicle is small in size, control the flexibility, can realize track planning and automatic navigation flight for unmanned aerial vehicle shed granule is not only efficient, and more artifical more even.

However, current partial plant protection unmanned aerial vehicle is at the in-process that the seed manure was broadcast, mostly adopt the mode of directly broadcasting to handle, directly throw away the seed or the fertilizer that the incasement portion dropped through rotatory throwing disk, then the seed manure directly drops in the field for seed manure is mostly unrestrained on field soil surface, and it is great to receive external factor's influence, is unfavorable for evenly broadcasting of seed manure, and the effective area who broadcasts simultaneously is not adjustable, and is inconvenient to use.

Disclosure of Invention

In order to overcome the technical problem, the invention provides a seed and fertilizer dual-purpose broadcasting device of a multi-rotor-wing plant protection unmanned aerial vehicle.

The purpose of the invention can be realized by the following technical scheme:

a seed and fertilizer dual-purpose broadcasting device of a multi-rotor-wing plant protection unmanned aerial vehicle comprises a seed box, a discharge barrel, a second motor and a disc throwing mechanism, wherein the seed box is of a cuboid shell structure with an open bottom end, the discharge barrel is horizontally arranged and fixed at the bottom end of the seed box and is communicated with the inside of the seed box, the inside of the discharge barrel is rotatably connected with a spiral discharge shaft through a bearing along the horizontal axis of the discharge barrel, a mounting plate is fixed at the outer side of one end of the discharge barrel, a first motor is installed at one side of the mounting plate, a motor shaft of the first motor penetrates through the mounting plate and is rotatably connected with the mounting plate, belt pulleys are fixedly sleeved on the motor shaft of the first motor and one end of the spiral discharge shaft, which is positioned at the outer side of the mounting plate, a linkage belt is rotatably sleeved between the two belt pulleys, an opening for discharging is formed in the middle position of the bottom of the discharge barrel, and a square opening retaining ring for uniform broadcasting is arranged below the discharge barrel, the disc throwing mechanism for uniform spreading is arranged on the inner side of the square-opening baffle ring, the second motor for driving the disc throwing mechanism is arranged at the top of the square-opening baffle ring, and the side wall of the square-opening baffle ring is obliquely arranged.

Further, the method comprises the following steps: the top mouth that the square mouth kept off the ring is fixed with the link, the upper surface of link has the second ring flange through the screw fixation, go out the first ring flange that feed cylinder bottom uncovered department was fixed with and is used with the second ring flange is fixed, the second motor is fixed the center of the bottom surface of link, the inboard that the center of link top surface lies in the second ring flange is fixed with the circular cone arch, utilizes link and second ring flange can keep off the ring with the square mouth and fix the uncovered department in the bottom of a feed cylinder to guarantee that seed manure is thrown away as centrifugal motion by the effect of throwing disk mechanism after the uncovered discharge of a feed cylinder, and then can guarantee that the even of seed manure is broadcast and the degree of depth of ingressing of seed manure is appropriate.

Further, the method comprises the following steps: the motor shaft of the second motor is fixedly provided with a cross-shaped fixing frame, the throwing disc mechanism comprises a circular throwing disc and a throwing ring fixed with the cross-shaped fixing frame, the middle of the circular throwing disc is sunken, the throwing ring is positioned at the sunken position of the middle of the circular throwing disc, the top surface of the throwing ring is uniformly fixed with a plurality of first poking teeth, the bottom surface of the throwing ring is uniformly provided with a plurality of groups of first threaded holes, the outer side of the top surface of the circular throwing disc is fixedly provided with second poking teeth corresponding to the first poking teeth, the circular throwing disc is provided with a plurality of groups of second threaded holes corresponding to the first threaded holes, the inner side of each second threaded hole is connected with a fixed connecting screw in a screwing mode, the top end of each connecting screw is fixedly screwed with one first threaded hole corresponding to the corresponding position, and one side surface of each second poking tooth is an arc-shaped surface.

Further, the method comprises the following steps: the utility model discloses a swing disc mechanism, including first group tooth, second group tooth, swing disc mechanism, connecting rod, hinge bar, connecting rod, fixing bolt, the second is dialled the another side of tooth and is seted up the slip recess on the horizontal direction along the horizontal direction on, and the inboard slip embedding of slip recess is connected with the square sliding plate, swing disc mechanism still includes hinge bar and connecting rod, the one end of hinge bar is arranged adjacent first group tooth one end and is seted up the spread groove inboard, and rotates through the pivot between the one end of hinge bar and the inboard of spread groove to be connected, the other end of hinge bar with the one end laminating of connecting rod, and the other end of hinge bar with connect through fixing bolt between the one end of connecting rod, run through on the other end of connecting rod to be provided with one end and the adjacent square sliding plate and close the set screw who connects the use soon.

Further, the method comprises the following steps: get rid of and go up corresponding connecting rod position department on the ring and seted up spacing draw-in groove, through with circular getting rid of the dish and get rid of when arranging the mode that is dislocation from top to bottom between the ring, spacing draw-in groove and an adjacent connecting rod joint, spacing draw-in groove can once fix the position of being in its inboard connecting rod like this, then through changing longer connecting screw, through with connecting screw with be in just closing soon to a second screw hole and a first screw hole of position, be convenient for like this to circular getting rid of the dish and get rid of the relative position of ring and carry out the secondary and fix.

Further, the method comprises the following steps: the included angle scope between the tooth is dialled for 165-.

Further, the method comprises the following steps: get rid of the top of intra-annular face and the circular sunken apical margin that gets rid of and coil all set up to the bevel connection structure, can get rid of the ring like this and the circular mode of getting rid of arranging about the dish is when spilling seed manure and when getting rid of the ring and being located the circular central depressed part that gets rid of the dish, when seed manure receives the effect of centrifugal force and throws away, set up it into the bevel connection, the seed manure of being convenient for throws away like this, avoids taking place to get rid of the interior anchor ring of dish and the sunken interior anchor ring to shelter from the circumstances that seed manure was centrifugal motion to appear.

Further, the method comprises the following steps: the bellied pointed end of circular cone up, and the bellied bottom surface diameter of circular cone equals the external diameter of second motor, utilizes the bellied biggest cross section of circular cone just can cover the second motor, prevents that seed manure from beating, the dead second motor of card.

Further, the method comprises the following steps: two side edges of the square sliding plate are in contact with the upper side wall and the lower side wall of the sliding groove, and the thickness of the square sliding plate is smaller than the depth of the sliding groove.

The invention has the beneficial effects that:

1. the discharging barrel is arranged below the seed box, seeds or fertilizers on the inner side of the seed box can be transferred to an opening in the middle of the discharging barrel to be discharged by utilizing a spiral discharging shaft on the inner side of the discharging barrel, the throwing disc mechanism is driven to rotate by the second motor, so that centrifugal motion of the seeds or the fertilizers on the throwing disc mechanism is realized, the seeds or the fertilizers which do centrifugal motion are thrown out and then impact on square-opening baffle rings which are obliquely arranged on the side wall, and then rebound and fall onto the ground, so that uniform sowing of the seed fertilizers is realized, the falling rate of the seed fertilizers can be improved by acting force during rebound, the sowing depth of the seed fertilizers into the soil is increased, and the influence degree of external factors on the sowing of the seed fertilizers is reduced;

2. the throwing ring is provided with a plurality of groups of first threaded holes, the circular throwing plate is provided with the second threaded holes, the circular throwing plate and the throwing ring can be fixedly connected through the connecting screws, when the adjustment is needed, the circular throwing plate is rotated to a proper angle, so that the first shifting teeth and the second shifting teeth are arranged at a certain included angle, the throwing direction of seed manure can be adjusted, the uniformity of seed manure spreading can be improved, and the uniform seed manure spreading efficiency can be further improved by setting one side surface of the second shifting teeth to be an arc surface; the circular throwing disc and the throwing ring are arranged in a vertically staggered manner, so that seed manure can be centrifugally thrown out through the circular throwing disc below, and is contacted with the side wall below the square opening baffle ring, the effective area for sowing the seed manure can be increased, and the relative positions of the circular throwing disc and the throwing ring can be favorably fixed by adjusting the connecting position of the connecting rod and the hinged rod;

3. the position of the connecting rod at the inner side of the throwing disc can be fixed for the first time by arranging the limiting clamping groove used for the disc row of the connecting rod on the throwing disc, and then the relative position of the round throwing disc and the throwing ring is conveniently fixed for the second time by screwing the connecting screw with the second threaded hole and the first threaded hole which are opposite to each other, so that the connection stability between the round throwing disc and the throwing ring can be improved; through be provided with the circular cone arch that is used for sheltering from the second motor on the link, the protruding biggest cross section of circular cone can cover the second motor, prevents that seed manure from beating, blocks dead second motor, guarantees the normal seed manure that spreads seeds of throwing away a set mechanism.

Drawings

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

FIG. 1 is a schematic view of the overall structure of the present invention;

FIGS. 2-3 are schematic views of the structure of the seed box of the present invention;

FIG. 4 is a schematic view of a square mouth baffle ring according to the present invention;

FIG. 5 is a schematic view of the position relationship between the square notch blocking ring and the second motor according to the present invention;

FIG. 6 is a schematic view of a disc throwing mechanism according to the present invention;

FIG. 7 is an enlarged view of a portion of FIG. 6 at A;

FIG. 8 is a schematic view of a swing ring structure of the present invention;

FIG. 9 is a schematic view of the throw ring and the circular throw disk of the present invention in an operating state;

fig. 10 is a schematic view of the structure of the second setting member of the present invention.

In the figure: 1. a seed box; 2. a discharging barrel; 21. spirally discharging the material shaft; 22. mounting a plate; 23. a first flange plate; 24. a first motor; 25. a linking belt; 3. a square-mouth baffle ring; 31. a connecting frame; 32. a second flange plate; 33. a conical projection; 4. a second motor; 41. a cross-shaped fixing frame; 5. a disc throwing mechanism; 51. swinging a ring; 511. a first threaded hole; 512. a limiting clamping groove; 52. a first shifting tooth; 521. connecting grooves; 53. a circular throwing disc; 531. a connecting screw; 532. a second threaded hole; 54. a second shifting tooth; 541. a sliding groove; 542. a square sliding plate; 55. a hinged lever; 551. fixing the bolt; 56. a connecting rod; 561. a set screw; 6. unmanned aerial vehicle body.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-10, a dual-purpose seed and fertilizer spreading device of a multi-rotor unmanned aerial vehicle for plant protection comprises a seed box 1, a discharge barrel 2, a second motor 4 and a throwing disc mechanism 5, wherein the seed box 1 is a cuboid shell structure with an open bottom end, the discharge barrel 2 horizontally arranged is fixed at the bottom end of the seed box 1 and is communicated with the inside of the seed box, the inside of the discharge barrel 2 is rotatably connected with a spiral discharge shaft 21 through a bearing along a horizontal axis of the discharge barrel, a mounting plate 22 is fixed at the outer side of one end of the discharge barrel 2, a first motor 24 is installed at one side of the mounting plate 22, a motor shaft of the first motor 24 penetrates through the mounting plate 22 and is rotatably connected with the mounting plate, belt pulleys are fixedly sleeved on one ends of the motor shaft of the first motor 24 and the spiral discharge shaft 21, which are positioned at the outer side of the mounting plate 22, a belt 25 is rotatably sleeved between the two belt pulleys, an open end of the bottom of the discharge barrel 2 is provided with a discharge opening for discharging, the square opening baffle ring 3 for uniform broadcasting is arranged below the discharge barrel 2, the disc throwing mechanism 5 for uniform broadcasting is arranged on the inner side of the square opening baffle ring 3, the second motor 4 for driving the disc throwing mechanism 5 is arranged at the top of the square opening baffle ring 3, the side wall of the square opening baffle ring 3 is obliquely arranged, when in use, a movable door capable of adding seeds or fertilizer can be arranged on the outer side of the seed box 1 and can be tightly closed after adding seed fertilizer without influencing the flying broadcasting process, after the seeds or fertilizer are added, the first motor 24 drives the spiral discharge shaft 21 to synchronously rotate through the linkage belt 25 in the flying process of the unmanned aerial vehicle body 6, the spiral discharge shaft 21 is of a double-spiral discharge structure, so that the seeds or fertilizer on the inner side of the seed box 1 can be intensively conveyed to the middle part of the discharge barrel 2 and then is discharged through the middle part of the discharge barrel 2 in an open manner, discharged seed or fertilizer still drop on throwing away a set mechanism through first ring flange 23 and second ring flange 32 in proper order, then it is rotatory to drive through second motor 4 and get rid of a set mechanism 5, thereby realize throwing away the centrifugal motion of the last seed of a set mechanism 5 or fertilizer, the seed of doing centrifugal motion or fertilizer are thrown away the back striking and are kept off the ring 3 at the square opening that the lateral wall slope was arranged, fall to ground by the bounce-back again, thereby realize the even broadcast of kind fertile, and can increase kind fertile broadcast depth of burying.

The top opening of the square opening baffle ring 3 is fixed with a connecting frame 31, the upper surface of the connecting frame 31 is fixed with a second flange plate 32 through screws, the opening at the bottom of the discharge barrel 2 is fixed with a first flange plate 23 which is fixedly used with the second flange plate 32, the second motor 4 is fixed at the center of the bottom surface of the connecting frame 31, the center of the top surface of the connecting frame 31 is positioned at the inner side of the second flange plate 32 and is fixed with a conical bulge 33, the square opening baffle ring 3 can be fixed at the opening at the bottom of the discharge barrel 2 by utilizing the connecting frame 31 and the second flange plate 32, thereby ensuring that seed manure is centrifugally moved and thrown out under the action of a throwing disc mechanism 5 after being discharged through the opening of the discharge barrel 2, further ensuring that the uniform sowing of the seed manure and the appropriate soil penetration depth of the seed manure, the tip of the conical bulge 33 faces upwards, the diameter of the bottom surface of the conical bulge 33 is equal to the outer diameter of the second motor 4, and the diameter of the bottom surface of the conical bulge 33 is smaller than the inner diameter of a throwing ring 51, utilize the biggest cross section of circular cone arch 33 just can cover second motor 4, prevent that seed manure from beating, the dead second motor 4 of card, and can make some seed manure can drop on the circular throwing disk 53 of throwing ring 51 below.

A cross fixing frame 41 is fixed on a motor shaft of the second motor 4, the throwing disc mechanism 5 comprises a circular throwing disc 53 and a throwing ring 51 fixed with the cross fixing frame 41, the middle of the circular throwing disc 53 is sunken, the throwing ring 51 is positioned at the sunken part of the middle of the circular throwing disc 53, a plurality of first poking teeth 52 are uniformly fixed on the top surface of the throwing ring 51, a plurality of groups of first threaded holes 511 are uniformly arranged on the bottom surface of the throwing ring 51, the number of each group of first threaded holes 511 is multiple, second poking teeth 54 are fixed on the outer side of the top surface of the circular throwing disc 53 corresponding to the positions of the first poking teeth 52, second threaded holes 532 are arranged on the circular throwing disc 53 corresponding to the positions of the plurality of groups of first threaded holes 511, the inner sides of the second threaded holes 532 are screwed and connected with fixed screw connecting screws 531, and the top ends of the connecting screws 531 are screwed and fixed with one first threaded hole 511 at the corresponding position, one side surface of the second shifting tooth 54 is an arc-shaped surface, the other side surface of the second shifting tooth 54 is provided with a sliding groove 541 along the horizontal direction, the inner side of the sliding groove 541 is connected with a square sliding plate 542 in a sliding embedded manner, the throwing disc mechanism 5 further comprises a hinge rod 55 and a connecting rod 56, one end of the hinge rod 55 is arranged at the inner side of a connecting groove 521 formed at one end of the adjacent first shifting tooth 52, one end of the hinge rod 55 is rotatably connected with the inner side of the connecting groove 521 through a rotating shaft, the other end of the hinge rod 55 is attached to one end of the connecting rod 56, the other end of the hinge rod 55 is connected with one end of the connecting rod 56 through a fixing bolt 551, the other end of the connecting rod 56 is provided with a positioning screw 561, one end of which is rotatably connected with the adjacent square sliding plate 542, when the throwing direction of the seed manure needs to be adjusted, the positioning screw 561 can be unscrewed, the square sliding plate 542 is in contact with the sliding groove 541 rather than in close contact with the sliding groove 541, so that the adjustment can be carried out, then the circular throwing plate 53 is rotated to a proper angle, the relative position between the connecting rod 56 and the second shifting tooth 54 is changed, after the adjustment is finished, the connecting screw 531 is screwed with the first threaded hole 511 and the second threaded hole 532 which are in opposite positions, the circular throwing plate 53 and the throwing ring 51 are fixed again, the angle between the hinge rod 55 and the first shifting tooth 52 connected with the hinge rod 55 is changed, the first shifting tooth 52 and the second shifting tooth 54 are arranged at a certain included angle, the efficiency of uniformly spreading the seed fertilizer can be improved by utilizing the arc-shaped surface, when the effective area of spreading the seed fertilizer needs to be enlarged, the connecting screw 531 is taken down, the fixing bolt 551 and the positioning screw 561 are unscrewed, then the circular throwing plate 53 is moved downwards, at the moment, the connecting rod 56 and the connecting position of the hinge rod 55 are rotated, the one end that connecting rod 56 is connected with square sliding plate 542 rotates downwards, until the lateral wall of connecting rod 56 and the lateral wall contact of flail ring 51, be convenient for like this with circular flail dish 53 with throw ring 51 separation, then change the longer connecting screw 531 of length and heavily will be in and just be connected to the first screw hole 511 and the second screw hole 532 of position, fix circular flail dish 53 and throw ring 51's relative position, thereby utilize circular flail dish 53 and throw ring 51 that are in dislocation arrangement from top to bottom, can make kind of fertilizer throw away through the centrifugation of circular flail dish 53 that is in the below, thereby keep off the lateral wall contact that the ring 3 is in the below with the square opening, and then can increase the effective area that kind of fertilizer was broadcast.

The position of the corresponding connecting rod 56 on the throwing ring 51 is provided with a limiting clamping groove 512, when the circular throwing disc 53 and the throwing ring 51 are arranged in a vertically staggered mode, the limiting clamping groove 512 is clamped with the adjacent connecting rod 56, the limiting clamping groove 512 can fix the position of the connecting rod 56 on the inner side of the limiting clamping groove 512 for the first time, then the connecting screw 531 is changed to be longer, the connecting screw 531 is screwed with a second threaded hole 532 and a first threaded hole 511 which are opposite to the position, and the relative position of the circular throwing disc 53 and the throwing ring 51 is fixed for the second time.

The included angle range between the first shifting tooth 52 and the adjacent second shifting tooth 54 is 165-180 degrees, so that a certain included angle is formed between the first shifting tooth 52 and the second shifting tooth 54, the seed manure is accelerated to be thrown out after receiving the action of the first shifting tooth 52 when being positioned on the throwing ring 51, and then the thrown-out direction is adjusted after the seed manure is contacted with the arc-shaped surface on the second shifting tooth 54 again, so that the function of uniformly spreading the seed manure is realized.

The top end of the inner ring surface of the throwing ring 51 and the top opening of the circular throwing disc 53 are both of an inclined opening structure, so that the top opening and the top opening of the circular throwing disc 53 can be inclined when the seed manure is applied in a vertical arrangement mode through the throwing ring 51 and the circular throwing disc 53 and when the throwing ring 51 is positioned at the central depression of the circular throwing disc 53, the seed manure is inclined when thrown out under the action of centrifugal force, the seed manure is convenient to throw out, the situation that the inner ring surface of the throwing disc and the inner ring surface of the depression block the seed manure to do centrifugal motion is avoided, two side edges of the square sliding plate 542 are in contact with the upper side wall and the lower side wall of the sliding groove 541, the thickness of the square sliding plate 542 is smaller than the depth of the sliding groove 541, and the square sliding plate 542 can slide on the inner side of the sliding groove 541.

The working principle is as follows: when the unmanned aerial vehicle is used, a movable door capable of adding seeds or fertilizers can be arranged on the outer side of the seed box 1, the movable door can be tightly closed after adding the seeds or fertilizers, the flying and broadcasting process is not affected, after the seeds or the fertilizers are added, the seed box 1 is integrally installed below the unmanned aerial vehicle body 6 by angle iron and screws, and the square-mouth baffle ring 3 is normally used, in the flying process of the unmanned aerial vehicle body 6, the first motor 24 drives the spiral discharging shaft 21 to synchronously rotate through the linkage belt 25, the spiral discharging shaft 21 is of an opposite double-spiral discharging structure, so that the seeds or the fertilizers on the inner side of the seed box 1 can be intensively conveyed to the middle part of the discharging barrel 2 and then discharged through the middle opening of the discharging barrel 2, the discharged seeds or fertilizers sequentially pass through the first flange plate 23 and the second flange plate 32 and then fall on the throwing plate mechanism 5, and then the throwing plate mechanism 5 is driven to rotate by the second motor 4, throwing out seeds or fertilizers and sowing the seeds or the fertilizers;

when the throwing direction of the seed manure needs to be adjusted, the positioning screw 561 can be unscrewed, so that the square sliding plate 542 is in a contact state but not in a close contact state with the sliding groove 541, the position of the square sliding plate 542 in the sliding groove 541 can be adjusted, then the circular throwing disc 53 is rotated to a proper angle, the relative position between the connecting rod 56 and the second shifting tooth 54 is changed, after the adjustment is finished, the connecting screw 531 is screwed with the first threaded hole 511 and the second threaded hole 532 which are in the opposite positions, then the positioning screw 561 is screwed, so that one side of the square sliding plate 542 is in a close contact state with one side wall of the sliding groove 541 again, the circular throwing disc 53 and the throwing ring 51 are fixed again, and the angle between the hinge rod 55 and the first shifting tooth 52 connected with the hinge rod 55 is changed, so that the first shifting tooth 52 and the second shifting tooth 54 form a certain included angle;

when the effective area for spreading the seed fertilizer needs to be enlarged, the connecting screw 531 is taken down, the fixing bolt 551 and the positioning screw 561 are loosened, then the circular throwing disk 53 is moved downwards, at this time, the connecting rod 56 is rotated with the connecting position of the hinge rod 55, one end of the connecting rod 56 connected with the square sliding plate 542 is rotated downwards, so that the square sliding plate 542 slides along the sliding groove 541 until the side wall of the connecting rod 56 is contacted with the side wall of the throwing ring 51, thus the circular throwing disk 53 is conveniently separated from the throwing ring 51, then the connecting screw 531 with longer length is replaced to connect the first threaded hole 511 and the second threaded hole 532 which are in opposite positions, then the fixing bolt 551 and the positioning screw 561 are screwed again, the relative positions of the circular throwing disk 53 and the throwing ring 51 are fixed, when the discharging barrel 2 discharges, because the center of the throwing ring 51 is open, so that the seeds or part of the fertilizer falling through the opening of the discharging barrel 2 is thrown out through the throwing ring 51, the rest part of the seed manure passes through the throwing ring 51, falls on the circular throwing disc 53, is thrown out after centrifugal motion, and then rebounds after contacting with the side wall below the square blocking ring 3, but the seed manure is thrown out because the contact part of the seed manure and the side wall of the square blocking ring 3 is higher when the throwing ring 51 is in a contact state with the circular throwing disc 53, so that the effective area for sowing the seed manure after rebounding is smaller.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing is illustrative and explanatory only and is not intended to be exhaustive or to limit the invention to the precise embodiments described, and various modifications, additions, and substitutions may be made by those skilled in the art without departing from the scope of the invention or exceeding the scope of the claims.