Unmanned aerial vehicle seedling throwing device

Abstract

The application discloses a seedling separating mechanism, a seedling feeding device, a seedling throwing machine and unmanned aerial vehicle seedling throwing equipment. The seedling separating mechanism comprises a grid cutter, a bottom disc, a seedling pressing column and a grid groove. The top surface of the bottom disc is provided with the grid groove corresponding to the grid cutter, so that the grid cutter can be embedded in the grid groove. The seedling pressing column is arranged above the bottom disc and is used for pressing the blanket seedlings on the bottom disc, so that the grid cutter can cut the soil layer of the blanket seedlings. The seedling separating mechanism can separate the existing blanket seedlings into pot seedlings or hole blanket seedlings. The size and weight of the seedling head soil block are more uniform, which is beneficial to improving the uniformity of the growth of the field seedlings after planting and the uniformity of the planting spacing of the field seedlings.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of agricultural machinery, and particularly relates to a unmanned aerial vehicle seedling throwing device. BACKGROUND

[0002] During the working process of the seedling throwing machine, the seedling taking mechanism located on one side of the seedling feeding disc takes out one seedling from the seedling mat on the seedling feeding disc each time and throws it out. The soil layers of all the seedlings on the seedling mat are connected into one piece. When the seedling taking mechanism takes out the seedlings, the number of the seedlings and the size of the soil blocks on the heads of the seedlings are different each time due to the complex root system. The uneven number of the seedlings will cause the problem of uneven growth of the seedlings after the seedlings are thrown. The size of the soil blocks on the heads of the seedlings is different, and the weight is also different. When the seedling taking mechanism throws out the seedlings with the same throwing or bouncing force, the throwing distances of the seedlings will be different, and therefore the problem of the uniformity of the planting distance of the seedlings in the field is caused. SUMMARY

[0003] The purpose of the embodiment of the present application is to provide a unmanned aerial vehicle seedling throwing device which can solve the above problems in the prior art.

[0004] To achieve the above purpose, the present application adopts the following technical scheme:

[0005] On one hand, a unmanned aerial vehicle seedling throwing device is provided, characterized in that the device comprises a unmanned aerial vehicle and a seedling throwing machine, the seedling throwing machine is carried under the unmanned aerial vehicle; the seedling throwing machine comprises a seedling feeding device and a seedling taking device, the seedling feeding device comprises a seedling dividing mechanism which can divide the seedling mat, and the seedling taking device can take out the seedlings after the seedling dividing and throw them out; the seedling dividing mechanism comprises:

[0006] a grid cutter;

[0007] a bottom disc, the top surface of the bottom disc is provided with a grid groove corresponding to the grid cutter, so that the grid cutter can be embedded in the grid groove;

[0008] a seedling pressing bar which is arranged above the bottom disc and is used for pressing the seedling mat on the bottom disc, so that the grid cutter can divide the soil layer of the seedling mat when the grid cutter is lifted up.

[0009] Optionally, the device further comprises a lifting drive which is connected with the grid cutter and is used for driving the grid cutter to move up and down relative to the bottom disc.

[0010] Optionally, the lifting stroke of the lifting drive when driving the grid cutter to move up and down is set to be that the grid cutter is always not completely out of the grid groove.

[0011] Optionally, the lifting drive comprises a fixed part and a driving part which can move relative to each other, the fixed part is arranged to be fixed relative to the bottom disc, and the driving part is connected with the grid cutter.

[0012] Optionally, the grid cutter comprises a cutter part and a support frame surrounding the peripheral part of the cutter part, and the driving part is connected with the support frame.

[0013] Optionally, at least two opposite sides of the support frame are respectively connected with a driving part.

[0014] Optionally, further comprising a guide member, the guide member comprises a guide part and a lifting part, the guide part is fixedly arranged opposite to the base plate, and the lifting part is connected with the support frame, and the guide part guides the linear lifting of the lifting part, and guides the lifting of the grid cutter.

[0015] Optionally, the lifting drive comprises a rotary drive and a lifting transmission, the input end and the output end of the lifting transmission are respectively connected with the rotary drive and the support frame, and the rotary movement of the rotary drive is converted into the lifting movement of the grid cutter through the lifting transmission.

[0016] Optionally, the lifting transmission comprises a screw rod and a threaded sleeve in screw cooperation, the screw rod is connected with the rotary drive, and the threaded sleeve is connected with the support frame.

[0017] Optionally, the lifting transmission comprises a gear and a rack in gear cooperation, the gear is connected with the rotary drive, and the rack is connected with the support frame.

[0018] Optionally, the lifting drive comprises a linear drive, and the linear drive is an electromagnet, a pneumatic cylinder or a hydraulic cylinder.

[0019] In another aspect, a seedling feeding device is provided, comprising the seedling separating mechanism, and a plurality of ejection bosses corresponding to the mesh holes of the grid cutter are formed between the grid slots on the base plate, and a feeding wheel for feeding seedlings is arranged on the ejection boss.

[0020] Optionally, an installation groove is arranged on the ejection boss corresponding to the installation of the feeding wheel, the feeding wheel is rotatably installed in the installation groove, and the top of the feeding wheel protrudes out of the installation groove, so that the feeding wheel can push the seedlings on the top surface of the base plate.

[0021] Optionally, the surface of the feeding wheel is provided with a plurality of protruding teeth.

[0022] Optionally, the base plate has an installation cavity, and the installation cavity is provided with a feeding drive for driving the rotation of the feeding wheel.

[0023] Optionally, the feeding drive comprises a feeding motor and a feeding transmission in transmission connection, the feeding motor is fixedly arranged in the installation cavity, and the feeding transmission is connected with the feeding wheel to drive the rotation of the feeding wheel.

[0024] Optionally, the pushing wheel comprises a pushing part and an axle penetrating through the pushing part, the pushing part is located in the mounting groove, and two ends of the axle are rotationally connected to the side walls of the mounting groove; the pushing transmission member comprises a driving gear and a driven gear in engagement, the driving gear is connected with the pushing motor, and the driven gear is connected with the axle, so that the pushing wheel is driven to rotate.

[0025] Optionally, each pushing wheel is connected with a pushing transmission member, and a plurality of driving gears in the same horizontal row are connected with a transmission shaft, so that a pushing motor synchronously drives a plurality of pushing wheels to rotate.

[0026] The beneficial effects of the present application are: the present application provides a seedling separating mechanism seedling conveying device, a seedling throwing machine and a unmanned aerial vehicle seedling throwing equipment, the seedling separating mechanism comprises a grid knife arranged on a chassis, before the seedling throwing operation, the grid knife can be used to quickly separate the soil layer of the blanket seedlings, and the blanket seedlings are made into pot seedlings or hole blanket seedlings, so that the effect of pre-separating is achieved. After the separation, the size of the soil block at the head of each seedling unit is the same, and the number of plants contained in each seedling unit is also more uniform. Then, the separated seedlings are placed on the seedling throwing machine. When the seedling taking mechanism takes and throws the seedlings, one seedling unit after the separation can be directly taken out and thrown out each time. Therefore, compared with the way of directly tearing the seedlings from the blanket seedlings in the traditional seedling throwing machine, the number of plants in the seedling unit after the separation by the seedling separating mechanism of the present application is more uniform, the size and weight of the soil block at the head of the seedling are more uniform, which is beneficial to improving the uniformity of the growth of the seedlings in the field after planting and improving the uniformity of the planting distance of the seedlings in the field. BRIEF DESCRIPTION OF DRAWINGS

[0027] The present application will be further described in detail below according to the drawings and embodiments.

[0028] Figure 1 FIG. 4 is a structural schematic view of the grid knife of the seedling separating mechanism or the seedling conveying device in a lowered state according to an embodiment of the present application;

[0029] Figure 2 FIG. 5 is an enlarged schematic view of area A in FIG. 4; Figure 1

[0030] Figure 3 FIG. 6 is a structural schematic view of the grid knife of the seedling separating mechanism or the seedling conveying device in a lifted state according to an embodiment of the present application;

[0031] Figure 4 FIG. 7 is a structural schematic view of the chassis according to an embodiment of the present application;

[0032] Figure 5 FIG. 8 is a structural schematic view of the grid knife according to an embodiment of the present application; ​

[0033] Figure 6 Figure is a partial sectional view of the seedling dividing mechanism or the seedling feeding device according to the embodiment of the present application;

[0034] Figure 7 Figure is a partial sectional view of the chassis according to the embodiment of the present application.

[0035] Figure:

[0036] 1, chassis; 11, grid slot; 12, ejection boss; 121, mounting groove; 2, grid cutter; 21, cutter part; 22, support frame; 3, lifting drive; 31, fixed part; 32, driving part; 4, guide member; 41, guide part; 42, lifting part; 5, pushing wheel; 51, pushing part; 52, wheel shaft; 6, pushing transmission; 61, driving gear; 62, driven gear; 63, transmission shaft. DETAILED DESCRIPTION

[0037] In order to make the technical problems solved by the present application, the technical solutions adopted and the technical effects reached more clear, the technical solutions of the embodiments of the present application are described in further detail below. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0038] In the description of the present application, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0039] In the present application, unless otherwise explicitly specified and limited, the first feature "on" or "under" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "under", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0040] In the working process of the traditional seedling throwing machine, the seedling taking mechanism located on one side of the seedling feeding tray takes out one seedling from the blanket seedlings on the seedling feeding tray each time and throws it out. The soil layers of all the seedlings on the blanket seedlings are connected together. When the seedling taking mechanism takes out the seedlings, the number of seedlings and the size of the soil block on the head of the seedlings are different each time due to the complex root system. The uneven number of seedlings will cause the problem of uneven growth of the seedlings after the seedlings are thrown. The different size of the soil block on the head of the seedlings will also cause the problem of different throwing distances of the seedlings when the seedling taking mechanism throws the seedlings out with the same throwing or bouncing force. Therefore, the problem of affecting the uniformity of the planting distance of the seedlings in the field exists.

[0041] In order to overcome the above technical problems, the present scheme provides a seedling separating mechanism which can first separate the soil layers of the blanket seedlings to make pot seedlings (the soil layers are completely separated, and there is no connection between the seedling units) or hole blanket seedlings (most of the soil layers are cut off, and only a thin layer of soil on the top surface is connected, which is easily torn off at the thin layer when the seedlings are taken out) with multiple seedling units. When the seedling taking mechanism takes out the seedlings, one seedling unit can be taken out each time. Since the seedlings are pre-cut, the problem of uneven number of seedlings and different size of the soil block on each seedling unit taken out can be greatly reduced.

[0042] As shown in Figures 1-3 The seedling separating mechanism of the present embodiment comprises:

[0043] a grid knife 2;

[0044] a bottom plate 1 provided with a grid groove 11 corresponding to the grid knife 2, so that the grid knife 2 can be embedded in the grid groove 11;

[0045] a seedling pressing bar arranged above the bottom plate 1 and used for pressing the blanket seedlings on the bottom plate 1, so that the grid knife 2 can cut the soil layer of the blanket seedlings.

[0046] The grid knife 2 is a knife structure in a grid structure, and the top surface of the grid knife 2 has a knife edge. A mesh hole is formed in the grid knife 2. Under the condition that the seedling pressing bar presses the blanket seedlings and limits the upward movement of the blanket seedlings, the upward movement of the grid knife 2 can quickly cut the soil layer of the blanket seedlings. An independent soil block is formed in each mesh hole, and the pot seedlings or hole blanket seedlings are quickly made.

[0047] The bottom plate 1 is provided with a grid groove 11 corresponding to the grid knife 2. Referring to Figure 1In the descending state, the grid knife 2 is embedded in the grid groove 11, the top surface of the grid knife 2 is lower than or flush with the top surface of the bottom disc 1, at this time the blanket seedlings can be directly laid on the top surface of the bottom disc 1, and then the seedlings are pressed on the bottom disc 1 using the seedling pressing bar, and the grid knife 2 is lifted upward to cut the soil layer of the seedlings from bottom to top. That is, the grid knife 2 is accommodated in the grid groove 11 on the bottom disc 1, so that the blanket seedlings can be normally laid on the bottom disc 1, and the upward and downward movement of the grid knife 2 is provided with a space, and the cutting function is realized. In addition, after cutting is completed, the grid knife 2 can be lowered and collected in the grid groove 11, the separation of the grid knife 2 and the blanket seedlings is realized, and the seedlings can be pushed out along the surface of the bottom disc 1.

[0048] The seedling pressing bar is used to press the soil layer of the blanket seedlings to tightly adhere to the upper surface of the bottom disc 1, and in application, the existing seedling pressing device can be combined for setting in the art. In actual operation, in order to improve the pressing degree of the soil layer of the blanket seedlings, compared with the existing seedling pressing device, the seedling pressing bar of the present scheme can increase the number of seedling pressing rods and increase the density of the seedling pressing rods, so as to increase the pressing area of the soil layer of the blanket seedlings, so that when the grid knife 2 is lifted to cut the soil layer, the blanket seedlings will not be lifted upward.

[0049] In summary, based on the seedling dividing mechanism of the embodiment, before the seedlings are thrown, the grid knife 2 can first quickly divide the soil layer of the blanket seedlings to make the blanket seedlings into pot seedlings or hole blanket seedlings, so as to achieve the effect of pre-division. After division, the size of the soil block at the head of each seedling unit is the same, and the number of plants contained in each seedling unit is also more uniform. Then, the divided seedlings are placed on the seedling throwing machine, and when the seedling taking mechanism takes and throws the seedlings, one seedling unit after division can be directly taken out and thrown each time. Therefore, compared with the way of directly tearing the seedlings from the blanket seedlings in the traditional seedling throwing machine, the number of seedling units after division by the seedling dividing mechanism of the present scheme is more uniform, the size and weight of the soil block at the head of the seedlings are more uniform, which is beneficial to improve the uniformity of the growth of the seedlings in the field after planting and improve the uniformity of the planting distance of the seedlings in the field.

[0050] In an embodiment, the lifting drive 3 is further included, which is connected with the grid knife 2 and used to drive the grid knife 2 to move up and down relative to the bottom disc 1.

[0051] That is, the lifting drive 3 is arranged to drive the lifting of the grid knife 2, which can realize the function of automatically lifting the grid knife 2. The lifting of the grid knife 2 does not require manual labor, which reduces the labor input. Moreover, the lifting speed of the grid knife 2 can be effectively accelerated by using the lifting drive 3, and the upward lifting force of the grid knife 2 on the blanket seedlings is offset by using the inertia of the weight of the blanket seedlings, so that the grid knife 2 can more smoothly cut into the soil layer of the blanket seedlings.

[0052] Of course, in other embodiments, the lifting of the grid knife 2 can also be directly driven by manpower, that is, manually lifting or pressing the grid knife 2 to achieve the purpose of cutting seedlings. This way can greatly simplify the structure of the device and reduce the cost of the device.

[0053] In an embodiment, the lifting stroke of the lifting drive 3 driving the lifting of the grid knife 2 is set so that the grid knife 2 is always not completely out of the grid groove 11.

[0054] Specifically, the grid knife 2 is always not completely out of the grid groove 11, which means that when the grid knife 2 is lifted to the maximum height, the bottom of the grid knife 2 still has a certain degree of coincidence with the grid groove 11, that is, the grid knife 2 can still keep the opening on the top side of the grid groove 11 blocked after being lifted, so as to avoid sand entering the grid groove 11 and causing blockage. In specific implementation, the lifting stroke of the grid knife 2 is set to be less than the depth of the grid groove 11, so that the grid knife 2 is always not completely out of the grid groove 11 during lifting.

[0055] In an embodiment, referring to Figure 3 , the lifting drive 3 includes a fixed part 31 and a driving part 32 which are relatively movable, the fixed part 31 is relatively fixedly arranged with the base plate 1, and the driving part 32 is connected with the grid knife 2.

[0056] The fixed part 31 is relatively fixedly arranged with the base plate 1, and the driving part 32 is connected with the grid knife 2, so that when the driving part 32 is lifted relative to the fixed part 31, the grid knife 2 will be lifted relative to the base plate 1. This structure is conducive to ensuring the stability of the lifting process of the grid knife 2 relative to the base plate 1.

[0057] In an embodiment, the grid knife 2 includes a blade part 21 and a support frame 22 surrounding the periphery of the blade part 21, and the driving part 32 is connected with the support frame 22.

[0058] Specifically, the blade part 21 is in a grid structure and has a blade on the top side. The support frame 22 is arranged on the periphery of the blade part 21 to provide reliable support for the blade part 21, thereby improving the strength and deformation resistance of the entire grid knife 2. Connecting the driving part 32 with the support frame 22 will not affect the lifting and cutting process of the blade part 21.

[0059] In an embodiment, at least two opposite sides of the support frame 22 are respectively connected with a driving part 32.

[0060] One lifting drive 3 is respectively arranged on two opposite sides of the support frame 22, which can provide lifting force to two opposite sides of the support frame 22 at the same time, so as to ensure that the entire grid knife 2 can be lifted horizontally, avoid the grid knife 2 from tilting relative to the base plate 1 during lifting, and improve the stability of the lifting process of the grid knife 2.

[0061] In an embodiment, the seed separating mechanism further comprises a guide member 4, which comprises a guide part 41 and a lifting part 42, the guide part 41 is fixed relative to the base 1, and the lifting part 42 is connected with the support frame 22, and the lifting part 42 is guided to move linearly by the guide part 41, and the grid cutter 2 is guided to move linearly.

[0062] Specifically, the guide member 4 guides the linear movement of the grid cutter 2, avoids the grid cutter 2 from tilting relative to the base 1 during the lifting process, and improves the stability of the lifting process of the grid cutter 2. The guide part 41 specifically provides a guide rail function, and the lifting part 42 specifically provides a sliding block function. The lifting part 42 is slidingly installed on the guide part 41, and the linear lifting of the lifting part 42 is guided by the guide part 41, so as to guide the linear lifting of the grid cutter 2.

[0063] Preferably, one guide member 4 is arranged at each corner of the grid cutter 2.

[0064] In an embodiment, the lifting drive 3 comprises a rotary drive and a lifting transmission, the input end and the output end of the lifting transmission are connected with the rotary drive and the support frame 22 respectively, and the rotary movement of the rotary drive is converted into the lifting movement of the grid cutter 2 by the lifting transmission.

[0065] Specifically, the rotary drive is a common drive, which can be a motor, a hydraulic motor, etc. The rotary drive drives the lifting transmission to rotate through the rotation of the output shaft. The lifting transmission can be a worm gear, a gear rack, a synchronous belt, a connecting rod, etc. The rotary movement of the input end is converted into the linear reciprocating movement of the output end, so as to drive the grid cutter 2 to lift. The present scheme adopts the combination of the rotary drive and the lifting transmission to drive the lifting of the grid cutter 2, which has the advantages of mature technology and easy implementation.

[0066] In an embodiment, the lifting transmission comprises a screw rod and a threaded sleeve in screw cooperation, the screw rod is connected with the rotary drive, and the threaded sleeve is connected with the support frame 22.

[0067] Specifically, the rotary degree of freedom of the threaded sleeve is locked by the support frame 22. The rotary drive drives the screw rod to rotate, and the screw rod drives the threaded sleeve to lift, so as to convert the rotary drive of the rotary drive into the lifting movement of the grid cutter 2.

[0068] In an embodiment, the lifting transmission comprises a gear and a rack in gear cooperation, the gear is connected with the rotary drive, and the rack is connected with the support frame 22.

[0069] Specifically, the rack is fixedly connected with the support frame 22, the rotating driving member drives the gear to rotate, the gear will push the rack to rise and fall, so as to realize the conversion of the rotating driving of the rotating driving member into the lifting movement of the grid cutter 2.

[0070] In an embodiment, the lifting driving member includes a linear driving member, which is an electromagnet, a pneumatic cylinder or a hydraulic cylinder.

[0071] Specifically, the above linear driving members are existing driving devices, which have the advantages of mature technology and reliable operation. The linear driving member can directly output linear driving, which saves the intermediate transmission assembly, is conducive to simplifying the structure and cost of the device, and improves the reliability of the device.

[0072] On the other hand, the embodiment also provides a seedling feeding device, which comprises the seedling dividing mechanism, and a plurality of ejection bosses 12 corresponding to the mesh holes of the grid cutter 2 are formed between the grid slots 11 on the bottom plate 1, and a pushing wheel 5 for pushing seedlings is arranged on each ejection boss 12.

[0073] This embodiment combines the seedling dividing mechanism with the seedling feeding device, so that after the seedlings are cut, the seedlings do not need to be manually transferred to the seedling throwing machine, and the seedling taking mechanism can directly take out the cut seedlings from the seedling feeding device, thereby directly canceling the manual transfer of the seedlings and reducing the labor input.

[0074] Specifically, in actual application, a seedling taking mechanism is generally arranged on one side of the seedling feeding device, which can continuously take out the divided seedlings and throw them out one by one. However, the seedling taking position of the seedling taking mechanism is generally fixed, so the seedlings need to be continuously transported to the seedling taking position one by one. In this scheme, the pushing wheel 5 is arranged on the ejection boss 12, the cutting blanket seedling is lifted and cut on the grid cutter 2 and then is lowered and reset, and the pushing wheel 5 is started to continuously push the seedlings to the side of the bottom plate 1 where the seedling taking mechanism is installed, so that the seedling taking mechanism can take down and throw out the seedlings one by one. That is, on the basis of realizing the cutting of the blanket seedling before throwing the seedling, this scheme can also provide the function of pushing the cut seedling, and the seedling does not need to be transferred after being cut, but can be directly pushed by the pushing wheel 5 on the ejection boss 12.

[0075] In other embodiments, a seedling pushing mechanism can be arranged on the side opposite to the seedling taking mechanism above the bottom plate 1, which can gradually push the divided seedlings to the seedling taking mechanism.

[0076] It can be understood that in actual application, a transverse driving mechanism needs to be arranged for the seedling feeding device or the seedling taking mechanism of this scheme, which can drive the seedling feeding device and the seedling taking mechanism to move relatively in the transverse direction, so that the seedling taking mechanism can take down and throw out the seedling units one by one in the transverse direction.

[0077] In an embodiment, the ejection boss 12 corresponding to the installation of the push wheel 5 is provided with a mounting groove 121, the push wheel 5 is rotatably installed in the mounting groove 121, and the top of the push wheel 5 protrudes out of the mounting groove 121, so that the push wheel 5 can push the seedlings on the top surface of the bottom plate 1.

[0078] The push wheel 5 is installed in the mounting groove 121 in a sunken manner, which can provide support for the push wheel 5 by the side wall of the mounting groove 121, and realize reliable installation of the push wheel 5. It should be noted that in order to enable the push wheel 5 to contact and push the seedlings, a part of the push wheel 5 needs to protrude above the top surface of the ejection boss 12.

[0079] In an embodiment, the surface of the push wheel 5 is provided with a plurality of teeth.

[0080] Specifically, the surface of the push wheel 5 is provided with a plurality of teeth, which can be embedded in the soil layer of the seedlings to form an engagement structure, so that the push wheel 5 can more smoothly push the seedlings to move.

[0081] Regarding the layout of the push wheel 5, since there is friction between the soil layers of the seedlings after the grid knife 2 is reset, each seedling can drive the adjacent seedling to move, and the rear seedling can push the front seedling to move. Therefore, preferably, the push wheel 5 can be arranged only in part of the ejection boss 12, which can reduce the number of push wheels 5, simplify the structure of the device, and reduce the cost of the device.

[0082] In an embodiment, the bottom plate 1 has a mounting cavity, and the mounting cavity is provided with a push driving device for driving the push wheel 5 to rotate.

[0083] Specifically, the top surface of the bottom plate 1 is used for installing the grid knife 2 and placing the seedlings; in order to avoid interference with the placement of the seedlings and at the same time realize the driving of the push wheel 5, the bottom plate 1 is arranged to have an inner cavity, and the push driving device is installed in the mounting cavity, which provides installation space and can also protect the push driving device.

[0084] In an embodiment, referring to Figure 6 , the push driving device comprises a push motor and a push transmission member 6 connected in transmission, the push motor is fixed in the mounting cavity, and the push transmission member 6 is connected with the push wheel to drive the push wheel 5 to rotate.

[0085] The push wheel 5 is installed in the mounting groove 121 of the ejection boss 12, and the installation space is relatively small, so it is difficult to directly connect the push motor with the push wheel 5. Therefore, the push motor is arranged below the top plate of the bottom plate 1 in a relatively spacious position, and the push transmission member 6 is arranged in the middle to transmit the rotation, so as to realize the transmission of the driving force of the push motor to the push wheel 5.

[0086] In an embodiment, referring to Figure 6 , the pushing wheel 5 comprises a pushing part 51 and an axle 52 penetrating the pushing part 51, the pushing part 51 is located in the installation groove 121, and both ends of the axle 52 are rotationally connected to the side walls of the installation groove 121; the pushing transmission part 6 comprises a driving gear 61 and a driven gear 62 in engagement, the driving gear 61 is connected with the pushing motor, and the driven gear 62 is connected with the axle 52, so as to realize the rotation of the pushing wheel 5.

[0087] Specifically, Figure 6 A partial vertical sectional view of the seedling feeding device at the position where the pushing wheel 5 is installed is shown, the top side corresponds to the top surface of the chassis 1, the pushing wheel 5 is installed, and the lower part corresponds to the installation cavity of the bottom side of the chassis 1, and the pushing transmission part 6 is installed therein. As can be seen from the figure, the driven gear 62 and the driving gear 61 are arranged above and below, and the pushing motor can be directly connected or transmission connected with the driving gear 61, so that the pushing motor drives the driving gear 61 to rotate, the driving gear 61 drives the driven gear 62 to rotate, and the driven gear 62 drives the pushing part 51 to rotate through the axle 52, so as to realize the purpose of pushing the pushing part 51 to move the seedlings.

[0088] In an embodiment, each pushing wheel 5 is connected with a pushing transmission part 6, and a transmission shaft 63 is connected with a plurality of driving gears 61 in the same horizontal row, so as to realize the synchronous driving of a plurality of pushing wheels 5 by one pushing motor.

[0089] That is, a plurality of driving gears 61 in the same horizontal row are connected in series through the transmission shaft 63, and only one pushing motor is needed to drive the transmission shaft 63 to rotate in the same horizontal row, so as to drive all the driving gears 61 to rotate, realizing the purpose of driving the whole row of pushing wheels 5 to rotate synchronously. Therefore, this structure can greatly reduce the number of pushing motors, reduce the cost of the device, and at the same time, it is also beneficial to ensure the synchronism of the rotation of all the pushing wheels 5.

[0090] On the other hand, a seedling throwing machine is provided, comprising a seedling feeding device and a seedling taking device, the seedling feeding device can cut the blanket seedlings, and the seedling taking device can take out and throw out the seedlings after cutting.

[0091] Similarly, the seedling throwing machine of the present embodiment uses the above seedling feeding device, which can separate the blanket seedlings into pot seedlings or hole blanket seedlings before throwing the seedlings. The use of the seedling throwing machine of the present embodiment can make the number of plants of the divided seedling units more uniform, and the size and weight of the soil blocks on the heads of the seedlings more uniform, which is beneficial to improve the uniformity of the growth of the seedlings in the field after planting, and improve the uniformity of the planting distance of the seedlings in the field.

[0092] In another aspect, the unmanned aerial seeding device is provided, comprising an unmanned aerial vehicle and a seeding machine, wherein the seeding machine is carried under the unmanned aerial vehicle.

[0093] In particular, the unmanned aerial vehicle has the advantage of fast flight speed, and the seeding machine carried under the unmanned aerial vehicle does not need to contact the field soil and water, and has smaller running resistance, which is beneficial to improve the transfer speed of the seeding machine, so as to improve the seeding efficiency. In addition, the unmanned aerial seeding device of the embodiment carries the above seeding machine, which is beneficial to improve the uniformity of the growth of seedlings in the field after planting, and improve the uniformity of the planting distance of seedlings in the field.

[0094] In the description herein, it should be understood that the terms "upper", "lower", "left", "right", and the like orientation or position relationship are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.

[0095] In the description of the present specification, the description referring to the terms "an embodiment", "an example" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example.

[0096] In addition, it should be understood that although the present specification is described in terms of embodiments, each embodiment does not only contain one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

[0097] The technical principles of the present application are described above in combination with specific embodiments. These descriptions are only for the purpose of explaining the principles of the present application, and cannot be interpreted in any way as a limitation on the scope of protection of the present application. Based on the explanation here, those skilled in the art do not need to make creative efforts to think of other specific embodiments of the present application, which will fall within the scope of protection of the present application.

Claims

1. A drone-based rice transplanting device, characterized in that, The system includes a drone and a rice transplanter, with the transplanter mounted beneath the drone. The transplanter includes a seedling delivery device and a seedling collection device. The delivery device includes a seedling separating mechanism capable of cutting the seedlings, and the collection device can remove and throw the separated seedlings. The seedling separating mechanism includes: Grid knife (2); The chassis (1) has a mesh groove (11) on its top surface that corresponds to the mesh blade (2), so that the descending mesh blade (2) can be embedded in the mesh groove (11); The seedling pressing grid is set above the base plate (1) to press the seedlings tightly onto the base plate (1), so that the raised grid blade (2) can cut the soil layer of the seedlings.

2. The unmanned aerial vehicle (UAV) rice transplanting device according to claim 1, characterized in that, It also includes a lifting drive (3), which is connected to the mesh blade (2) and is used to drive the mesh blade (2) to move up and down relative to the chassis (1).

3. The unmanned aerial vehicle (UAV) rice transplanting device according to claim 2, characterized in that, The stroke of the lifting drive (3) driving the mesh cutter (2) to rise and fall is set such that the mesh cutter (2) is never completely disengaged from the mesh groove (11).

4. The unmanned aerial vehicle (UAV) rice transplanting device according to claim 2, characterized in that, The lifting drive (3) includes a fixed part (31) and a drive part (32) that are relatively movable. The fixed part (31) is fixedly disposed relative to the chassis (1), and the drive part (32) is connected to the mesh blade (2).

5. The unmanned aerial vehicle (UAV) rice transplanting device according to claim 4, characterized in that, The mesh blade (2) includes a blade portion (21) and a support frame (22) surrounding the periphery of the blade portion (21), and the drive portion (32) is connected to the support frame (22).

6. The unmanned aerial vehicle (UAV) rice transplanting device according to claim 5, characterized in that, At least two opposing sides of the support frame (22) are respectively connected to a drive unit (32).

7. The unmanned aerial vehicle (UAV) rice transplanting device according to claim 5, characterized in that, It also includes a guide member (4), which includes a guide part (41) and a lifting part (42) that can be raised and lowered relative to each other. The guide part (41) is fixedly arranged relative to the chassis (1), and the lifting part (42) is connected to the support frame (22). The guide part (41) guides the linear raising and lowering of the lifting part (42) and guides the raising and lowering of the grid blade (2).

8. The unmanned aerial vehicle (UAV) rice transplanting device according to claim 5, characterized in that, The lifting drive (3) includes a rotary drive component and a lifting transmission component. The input end and output end of the lifting transmission component are respectively connected to the rotary drive component and the support frame (22). The lifting transmission component converts the rotational motion of the rotary drive component into the lifting motion of the grid blade (2).

9. The unmanned aerial vehicle (UAV) rice transplanting device according to claim 8, characterized in that, The lifting transmission component includes a threaded screw and a threaded sleeve. The screw is connected to the rotary drive component, and the threaded sleeve is connected to the support frame (22).

10. The unmanned aerial vehicle (UAV) rice transplanting device according to claim 8, characterized in that, The lifting transmission component includes a gear and a rack that are geared together. The gear is connected to the rotary drive component, and the rack is connected to the support frame (22).

11. The unmanned aerial vehicle (UAV) rice transplanting device according to claim 5, characterized in that, The lifting drive (3) includes a linear drive, which is an electromagnet, a cylinder or a hydraulic cylinder.

12. A seedling delivery device, characterized in that, The unmanned aerial vehicle seedling throwing device according to any one of claims 1-11 has a push-out boss (12) formed on the chassis (1) between the grid grooves (11) corresponding to the mesh holes of the grid blade (2), and the push-out boss (12) is provided with a push wheel (5) for pushing seedlings.

13. The seedling delivery device according to claim 12, characterized in that, A mounting groove (121) is provided on the top protrusion (12) on which the push wheel (5) is installed. The push wheel (5) is rotatably installed in the mounting groove (121), and the top of the push wheel (5) protrudes out of the mounting groove (121), so that the push wheel (5) can push the seedlings located on the top surface of the chassis (1).

14. The seedling delivery device according to claim 13, characterized in that, The surface of the push wheel (5) is provided with protruding teeth.

15. The seedling delivery device according to claim 13, characterized in that, The chassis (1) has a mounting cavity, and the mounting cavity is provided with a push drive for driving the push wheel (5) to rotate.

16. The seedling delivery device according to claim 15, characterized in that, The push drive includes a push motor and a push transmission component (6) connected by a transmission. The push motor is fixed in the mounting cavity, and the push transmission component (6) is connected to the push wheel (5) to drive the push wheel (5) to rotate.

17. The seedling delivery device according to claim 16, characterized in that, The push wheel (5) includes a push part (51) and a wheel axle (52) passing through the push part (51). The push part (51) is located in the mounting groove (121). The two ends of the wheel axle (52) are rotatably connected to the side wall of the mounting groove (121). The push transmission component (6) includes a meshing drive gear (61) and a driven gear (62). The drive gear (61) is connected to the push motor, and the driven gear (62) is connected to the wheel axle (52), thereby driving the push wheel (5) to rotate.

18. The seedling delivery device according to claim 17, characterized in that, Each of the push wheels (5) is connected to a push transmission component (6), and several drive gears (61) located in the same horizontal row are connected to a transmission shaft (63), thereby realizing that one push motor synchronously drives several push wheels (5) to rotate.

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