Seedling separating mechanism, seedling conveying device, seedling throwing machine and unmanned aerial vehicle seedling throwing equipment

Abstract

The invention discloses a seedling separating mechanism, a seedling conveying device, a seedling throwing machine and unmanned aerial vehicle seedling throwing equipment. A grid groove corresponding to the grid cutter is formed in the top surface of the chassis, so that the descending grid cutter can be embedded into the grid groove; the seedling pressing fence is arranged above the base plate and used for pressing blanket seedlings on the base plate, so that the raised grid cutter can cut the soil layer of the blanket seedlings. By means of the seedling separating mechanism, existing blanket seedlings can be divided into pot seedlings or hole blanket seedlings, the size and weight of soil blocks at the heads of the seedlings are more uniform, the uniformity of field seedling growth after planting is improved, and the uniformity of field seedling planting intervals is improved.

Description

Technical Field

[0001] The present application relates to the technical field of agricultural machinery, and in particular to a seedling separation mechanism, a seedling delivery device, a seedling transplanter and an unmanned aerial vehicle seedling transplanting device. Background Art

[0002] During the operation of the seedling transplanter, the seedling picking mechanism located on one side of the seedling delivery tray takes out a bunch of seedlings from the blanket of seedlings on the seedling delivery tray and throws them out. The soil layers of all the seedlings on the blanket of seedlings are connected into one piece. When the seedling picking mechanism takes the seedlings, due to the complex root system, the number of seedlings torn out each time and the size of the soil blocks on the heads of the seedlings are different. The uneven number of seedlings will lead to the problem of uneven growth of the seedlings after transplanting, and the soil blocks on the heads of the seedlings are different in size and weight. When the seedling picking mechanism throws them out with the same throwing or popping force, the spacing between the seedlings will be different. Therefore, there is a problem of affecting the uniformity of the spacing between seedlings planted in the field. Summary of the invention

[0003] The purpose of the embodiments of the present invention is to provide a seedling separation mechanism, a seedling delivery device, a seedling throwing machine and an unmanned aerial vehicle seedling throwing equipment, which can solve the above-mentioned problems existing in the prior art.

[0004] To achieve the above objectives, this application adopts the following technical solutions:

[0005] On the one hand, a seedling separation mechanism is provided, comprising:

[0006] Grid knife;

[0007] A chassis, the top surface of which is provided with a grid groove corresponding to the grid knife, so that the descending grid knife can be embedded in the grid groove;

[0008] The seedling pressing fence is arranged above the chassis and is used to press the blanket seedlings onto the chassis so that the raised grid knife can cut the soil layer of the blanket seedlings.

[0009] Optionally, it also includes a lifting drive, which is connected to the grid knife and is used to drive the grid knife to move up and down relative to the chassis.

[0010] Optionally, the lifting drive drives the mesh knife to lift and lower a stroke that is set so that the mesh knife never completely escapes from the mesh slot.

[0011] Optionally, the lifting drive includes a relatively movable fixed part and a driving part, the fixed part is fixedly arranged relative to the chassis, and the driving part is connected to the grid knife.

[0012] Optionally, the grid knife includes a blade portion and a support frame surrounding the blade portion, and the driving portion is connected to the support frame.

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

[0014] Optionally, it also includes a guide component, which includes a guide part and a lifting part that can be raised and lowered relative to each other, the guide part is fixed relative to the chassis, and the lifting part is connected to the support frame, and the lifting part is guided by the guide part to linearly rise and fall, thereby guiding the lifting and lowering of the grid knife.

[0015] Optionally, the lifting drive includes a rotary drive member and a lifting transmission member, the input end and the output end of the lifting transmission member are respectively connected to the rotary drive member and the support frame, and the lifting transmission member converts the rotary motion of the rotary drive member into the lifting motion of the grid knife.

[0016] Optionally, the lifting transmission member includes a threaded screw and a threaded sleeve, the screw is connected to the rotary drive member, and the threaded sleeve is connected to the support frame.

[0017] Optionally, the lifting transmission member includes a gear and a rack matched with gears, the gear is connected to the rotating drive member, and the rack is connected to the support frame.

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

[0019] On the other hand, a seedling delivery device is provided, comprising the above seedling separation mechanism, wherein an ejection boss corresponding to the mesh holes of the grid knife is formed between the grid grooves on the chassis, and a pushing wheel for pushing the seedlings is provided on the ejection boss.

[0020] Optionally, a mounting groove is provided on the ejection boss corresponding to the installation of the pushing wheel, the pushing wheel is rotatably installed in the mounting groove, and the top of the pushing wheel protrudes out of the mounting groove, so that the pushing wheel can push the seedlings located on the top surface of the chassis.

[0021] Optionally, the pushing wheel surface is provided with convex teeth.

[0022] Optionally, the chassis has an installation cavity, and a push drive for driving the push wheel to rotate is provided in the installation cavity.

[0023] Optionally, the push drive includes a push motor and a push transmission member that are transmission-connected, the push motor is fixed in the installation cavity, and the push transmission member is connected to the push wheel to drive the push wheel to rotate.

[0024] Optionally, the pushing wheel includes a pushing part and a wheel axle passing through the pushing part, the pushing part is located in the mounting groove, and both ends of the wheel axle are rotatably connected to the side walls of the mounting groove respectively; the pushing transmission component includes a meshing driving gear and a driven gear, the driving gear is connected to the pushing motor, and the driven gear is connected to the wheel axle, thereby driving the pushing wheel to rotate.

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

[0026] On the other hand, a seedling throwing machine is provided, comprising a seedling delivery device and a seedling taking device, wherein the seedling delivery device can cut the seedlings in a blanket, and the seedling taking device can take out the cut seedlings and throw them out.

[0027] On the other hand, a drone rice seedling transplanting device is provided, comprising a drone and a rice seedling transplanter, wherein the rice seedling transplanter is mounted under the drone.

[0028] The beneficial effects of the present application are as follows: the present invention provides a seedling delivery device of a seedling separation mechanism, a seedling throwing machine and a drone seedling throwing device, wherein the seedling separation mechanism includes a grid knife arranged on a chassis, and before the seedling throwing operation, the soil layer of the blanket seedling can be quickly divided by the grid knife, and the blanket seedling can be made into a pot seedling or a hole blanket seedling, so as to achieve the effect of pre-division, and the soil block size of each seedling unit head after segmentation is the same, and the number of plants contained in each seedling unit is also relatively uniform. After that, the segmented seedlings are placed on the seedling throwing machine, and when the seedling taking mechanism takes the seedlings and throws the seedlings, a seedling unit after segmentation can be directly taken out and thrown out each time, so compared with the traditional seedling throwing machine directly tearing the seedlings out of the blanket seedling, the number of plants of the seedling unit after segmentation completed by the seedling separation mechanism of the present scheme is more uniform, and the size and weight of the soil block on the head of the seedling are more uniform, which is conducive to improving the uniformity of the growth of the field seedlings after planting, and improving the uniformity of the planting spacing of the field seedlings. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The present application is further described in detail below based on the drawings and embodiments.

[0030] Figure 1 It is a structural schematic diagram of the grid knife of the seedling separation mechanism or the seedling delivery device described in the embodiment of the present application in a descending state;

[0031] Figure 2 for Figure 1 A magnified schematic diagram of the middle A area;

[0032] Figure 3 It is a structural schematic diagram of the grid knife of the seedling separation mechanism or the seedling delivery device described in the embodiment of the present application in the lifted state;

[0033] Figure 4 This is a schematic diagram of the structure of the chassis described in the embodiment of the present application;

[0034] Figure 5 This is a schematic diagram of the structure of the grid knife described in the embodiment of the present application;

[0035] Figure 6 It is a partial cross-sectional view of the seedling separation mechanism or the seedling delivery device described in the embodiment of the present application;

[0036] Figure 7 It is a partial cross-sectional view of the chassis described in the embodiment of the present application.

[0037] In the figure:

[0038] 1. chassis; 11. grid groove; 12. ejector boss; 121. mounting trough; 2. grid knife; 21. blade portion; 22. support frame; 3. lifting drive; 31. fixing portion; 32. driving portion; 4. guide member; 41. guide portion; 42. lifting portion; 5. pushing wheel; 51. pushing portion; 52. wheel axle; 6. pushing transmission member; 61. driving gear; 62. driven gear; 63. transmission shaft. DETAILED DESCRIPTION

[0039] In order to make the technical problems solved by this application, the technical solutions adopted, and the technical effects achieved more clearly, the technical solutions of the embodiments of this application are further described in detail below. Obviously, the described embodiments are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application.

[0040] In the description of this application, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0042] During the operation of a traditional rice seedling thrower, a seedling picking mechanism located on one side of the seedling delivery tray takes out a bunch of seedlings from the seedling blanket on the seedling delivery tray and throws them out. The soil layers of all the seedlings on the seedling blanket are connected together. When the seedling picking mechanism takes the seedlings, due to the complex root system, the number of seedlings torn out each time and the size of the soil blocks on the seedling heads are different. The uneven number of seedlings will lead to uneven growth of the seedlings after throwing, and the soil blocks on the seedling heads are of different sizes and weights. When the seedling picking mechanism throws them out with the same throwing or popping force, the throwing spacing will be different, so there is a problem of affecting the uniformity of the planting spacing of the seedlings in the field.

[0043] In order to overcome the above technical problems, the present scheme provides a seedling separation mechanism, which can first separate the soil layer of the blanket seedlings to make pot seedlings with multiple seedling units (the soil layer is completely disconnected, and the seedling units are not connected) or hole blanket seedlings (most of the soil layer is cut off, leaving only a thin layer of soil on the top surface, which is very easy to be torn off at the connected thin layer when the seedlings are taken out). When the seedling taking mechanism takes out the seedlings, one seedling unit can be taken out at a time. Since the seedlings are pre-cut, the problems of uneven number of seedlings and different sizes of soil blocks on each seedling unit taken out can be greatly alleviated.

[0044] like Figure 1-3 As shown, the seedling separation mechanism of this embodiment includes:

[0045] Grid knife 2;

[0046] The chassis 1 has a top surface provided with a grid groove 11 corresponding to the grid knife 2, so that the descending grid knife 2 can be embedded in the grid groove 11;

[0047] The seedling pressing fence is arranged above the chassis 1 and is used to press the blanket seedlings onto the chassis 1 so that the raised grid knife 2 can cut the soil layer of the blanket seedlings.

[0048] Among them, the grid knife 2 is a knife structure with a grid structure, the top surface of which has a blade, and mesh holes are formed in the grid knife 2. When the seedling pressing fence presses the blanket seedlings to restrict the blanket seedlings from moving upward, the upward moving grid knife 2 can quickly cut the soil layer of the blanket seedlings, and an independent soil block is formed in each mesh hole, thereby realizing the rapid production of pot seedlings or hole blanket seedlings.

[0049] The chassis 1 is provided with a grid slot 11 corresponding to the grid knife 2, referring to Figure 1 In the descending state, the grid knife 2 is embedded in the grid groove 11, and the top surface of the grid knife 2 is lower than or flush with the top surface of the chassis 1. At this time, the blanket seedlings can be directly laid flat on the top surface of the chassis 1, and then the seedling pressing fence is used to press the blanket seedlings onto the chassis 1. The grid knife 2 is lifted upward to cut the soil layer of the blanket seedlings from bottom to top. That is, this scheme utilizes the grid groove 11 structure on the chassis 1 to accommodate the grid knife 2, so that the blanket seedlings can be laid on the chassis 1 normally, and can provide space for the grid knife 2 to move up and down, realizing the cutting function. In addition, after the cutting is completed, the grid knife 2 can be lowered and recovered in the grid groove 11 to separate the grid knife 2 from the blanket seedlings, so that the seedlings can be pushed out along the surface of the chassis 1 on the chassis 1.

[0050] The seedling pressing fence is used to press the soil layer of the seedling blanket tightly against the upper surface of the chassis 1. When used, the present invention can be combined with the existing seedling pressing device to set it. In actual operation, in order to improve the compaction of the soil layer of the seedling blanket, compared with the existing seedling pressing device, the seedling pressing fence of this solution can increase the number of seedling pressing rods and increase the density of the seedling pressing rods to increase the compaction area of ​​the soil layer of the seedling blanket, so that when the grid knife 2 is lifted up to cut the soil layer, the seedling blanket will not be pushed up.

[0051] In summary, based on the seedling separation mechanism of this embodiment, before transplanting, the soil layer of the blanket seedlings can be quickly divided by the grid knife 2, and the blanket seedlings can be made into pot seedlings or hole blanket seedlings to achieve the effect of pre-division. After the division, the soil block at the head of each seedling unit is the same size, and the number of plants contained in each seedling unit is also relatively uniform. After that, the divided seedlings are placed on the transplanting machine. When the seedling taking mechanism takes the seedlings and transplants the seedlings, one seedling unit after the division can be directly taken out and thrown out each time. Therefore, compared with the traditional transplanting machine directly tearing the seedlings out of the blanket seedlings, the number of seedling units after the division by the seedling separation mechanism of this scheme is more uniform, and the size and weight of the soil block at the head of the seedlings are more uniform, which is conducive to improving the uniformity of the growth of the field seedlings after planting, and improving the uniformity of the planting spacing of the field seedlings.

[0052] In one embodiment, a lifting drive 3 is further included, and the lifting drive 3 is connected to the grid knife 2 and is used to drive the grid knife 2 to move up and down relative to the chassis 1.

[0053] That is, the lifting drive 3 is provided to drive the lifting of the mesh knife 2, so as to realize the function of automatically lifting the mesh knife 2. There is no need to lift the mesh knife 2 manually, which reduces the manpower input, and the lifting drive 3 can effectively speed up the lifting speed of the mesh knife 2, and use the weight inertia of the blanket seedlings to offset the top force of the mesh knife 2 on the blanket seedlings, so that the mesh knife 2 can cut into the soil layer of the blanket seedlings more smoothly.

[0054] 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 down the grid knife 2 to achieve the purpose of cutting seedlings. This method can greatly simplify the structure of the device and reduce the cost of the device.

[0055] In one embodiment, the lifting stroke of the mesh knife 2 driven by the lifting drive 3 is set so that the mesh knife 2 never completely escapes from the mesh slot 11 .

[0056] Specifically, the grid knife 2 never completely escapes from the grid slot 11, which means that when the grid knife 2 is lifted to the maximum height, its bottom still overlaps with the grid slot 11 to a certain extent, that is, after the grid knife 2 is lifted, it can still block the opening on the top side of the grid slot 11 to prevent sand from entering the grid slot 11 and clogging it. In specific implementation, the lifting stroke of the grid knife 2 is set to be less than the depth of the grid slot 11, so that the grid knife 2 will never completely escape from the grid slot 11 during the lifting process.

[0057] In one embodiment, referring to Figure 3 The lifting drive 3 includes a relatively movable fixing portion 31 and a driving portion 32 . The fixing portion 31 is relatively fixedly arranged with respect to the chassis 1 , and the driving portion 32 is connected with the grid knife 2 .

[0058] The fixing part 31 is fixedly arranged relative to the chassis 1, and the driving part 32 is connected to the mesh knife 2, so that when the driving part 32 is lifted relative to the fixing part 31, the mesh knife 2 is driven to be lifted relative to the chassis 1. This structure is conducive to ensuring the stability of the lifting process of the mesh knife 2 relative to the chassis 1.

[0059] In one embodiment, the grid knife 2 includes a blade portion 21 and a support frame 22 surrounding the blade portion 21 , and the driving portion 32 is connected to the support frame 22 .

[0060] Specifically, the blade portion 21 is in a grid structure, and has a blade edge on its top side. A support frame 22 is provided around the blade portion 21 to provide reliable support for the blade portion 21, thereby improving the strength and anti-deformation ability of the entire grid knife 2. The drive portion 32 is connected to the support frame 22, which will not affect the process of the blade portion 21 rising and falling to cut the seedlings.

[0061] In one embodiment, at least two opposite sides of the support frame 22 are respectively connected to a driving portion 32 .

[0062] A lifting drive 3 is respectively arranged on two opposite sides of the support frame 22, which can provide lifting force to the two opposite sides of the support frame 22 at the same time, ensuring that the entire grid knife 2 can maintain horizontal lifting, avoiding the grid knife 2 from tilting relative to the chassis 1 during the lifting process, and improving the stability of the grid knife 2 during the lifting process.

[0063] In one embodiment, the seedling separation mechanism also includes a guide member 4, which includes a guide portion 41 and a lifting portion 42 that can be relatively raised and lowered. The guide portion 41 is fixed relative to the chassis 1, and the lifting portion 42 is connected to the support frame 22. The guide portion 41 guides the linear lifting of the lifting portion 42, thereby guiding the lifting and lowering of the grid knife 2.

[0064] Specifically, the guide member 4 can guide the linear lifting of the mesh knife 2, prevent the mesh knife 2 from tilting relative to the chassis 1 during the lifting process, and improve the stability of the mesh knife 2 during the lifting process. The guide part 41 specifically provides a guide rail function, and the lifting part 42 specifically provides a slider function. The lifting part 42 is slidably installed on the guide part 41, and the guide part 41 guides the linear lifting of the lifting part 42 to achieve the linear lifting of the mesh knife 2.

[0065] Preferably, a guide member 4 is provided at each of the four corners of the grid knife 2 .

[0066] In one embodiment, the lifting drive 3 includes a rotating drive member and a lifting transmission member, the input end and the output end of the lifting transmission member are respectively connected to the rotating drive member and the support frame 22, and the lifting transmission member converts the rotating motion of the rotating drive member into the lifting motion of the grid knife 2.

[0067] Specifically, the rotary drive member is a common drive member, which can be an electric motor, a hydraulic motor, etc., and the rotation of its output shaft drives the lifting transmission member to operate. The lifting transmission member can be a transmission mechanism such as a worm gear, a gear rack, a synchronous belt, a connecting rod, etc., which converts the rotation of the input end into a linear reciprocating motion of the output end to achieve the function of driving the mesh knife 2 to rise and fall. This solution uses a combination of a rotary drive member and a lifting transmission member to drive the mesh knife 2 to rise and fall, which has the advantages of mature technology and easy implementation.

[0068] In one embodiment, the lifting transmission member includes a screw rod and a threaded sleeve that are threaded together, the screw rod is connected to the rotary drive member, and the threaded sleeve is connected to the support frame 22 .

[0069] Specifically, the rotational freedom of the threaded sleeve is locked by the support frame 22, and the rotary drive member drives the screw rod to rotate, and the screw rod will push the threaded sleeve to rise and fall, so the rotary drive of the rotary drive member can be converted into the lifting movement of the grid knife 2.

[0070] In one embodiment, the lifting transmission member includes a gear and a rack matched with each other, the gear is connected to the rotating driving member, and the rack is connected to the supporting frame 22.

[0071] Specifically, the rack is fixedly connected to the support frame 22, and the rotary drive member drives the gear to rotate, and the gear will push the rack to rise and fall, so the rotary drive of the rotary drive member can be converted into the lifting movement of the grid knife 2.

[0072] In one embodiment, the lifting drive 3 includes a linear drive component, and the linear drive component is an electromagnet, a cylinder or a hydraulic cylinder.

[0073] Specifically, the above linear drive components are all existing drive devices, which have the advantages of mature technology and reliable operation. The use of linear drive components can directly output linear drive, eliminating the intermediate transmission components, which is conducive to simplifying the device structure and cost and improving the reliability of the device.

[0074] On the other hand, the present embodiment also provides a seedling delivery device, which includes the aforementioned seedling separation mechanism, and an ejection boss 12 corresponding to the mesh holes of the grid knife 2 is formed on the chassis 1 between the grid grooves 11, and a pushing wheel 5 for pushing the seedlings is provided on the ejection boss 12.

[0075] This embodiment combines the aforementioned seedling separation mechanism with the seedling delivery device. After the seedlings are cut, there is no need to manually transfer the seedlings to the seedling throwing machine. The seedling taking mechanism can directly take out the cut seedlings from the seedling delivery device, directly eliminating the work of manually transferring the seedlings and reducing manpower input.

[0076] Specifically, in practical applications, a seedling taking mechanism is generally provided on one side of the seedling delivery device, and the seedling taking mechanism can be used to continuously take out the seedlings after the segmentation is completed 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 solution, a pushing wheel 5 is provided on the ejection boss 12, and the grid knife 2 is lifted up to cut the blanket seedlings and then lowered to reset. Starting the pushing wheel 5 can continuously push the seedlings to the side of the chassis 1 where the seedling taking mechanism is installed, so that the seedling taking mechanism can take out the seedlings one by one and throw them out. That is, this solution can not only realize the slicing of the blanket seedlings before throwing, but also provide the function of pushing the sliced ​​seedlings, and there is no need to transfer the seedlings after slicing, and the pushing wheel 5 on the ejection boss 12 can be directly used to push them.

[0077] In other embodiments, a seedling pushing mechanism may be provided above the chassis 1 on a side opposite to the seedling taking mechanism, and the seedling pushing mechanism may be used to gradually push the segmented seedlings toward the seedling taking mechanism.

[0078] It is assumed that the pushing wheel 5 can push the seedlings toward the seedling taking mechanism along the longitudinal direction. It can be understood that in practical applications, it is also necessary to set a transverse driving mechanism for the seedling delivery device or the seedling taking mechanism of this scheme. The transverse driving mechanism can be used to drive the seedling delivery device and the seedling taking mechanism to move laterally relative to each other, so that the seedling taking mechanism can take out and throw out the seedling units one by one along the transverse direction.

[0079] In one embodiment, a mounting groove 121 is provided on the ejection boss 12 corresponding to the mounting of the pushing wheel 5, the pushing wheel 5 is rotatably mounted in the mounting groove 121, and the top of the pushing wheel 5 protrudes out of the mounting groove 121, so that the pushing wheel 5 can push the seedlings located on the top surface of the chassis 1.

[0080] The push wheel 5 is sunken and installed in the installation sink 121, and the side wall of the installation sink 121 can be used to provide support for the push wheel 5, so as to achieve reliable installation of the push wheel 5. It should be noted that in order for the push wheel 5 to contact and push the seedlings, a portion of the push wheel 5 needs to protrude from the top surface of the ejector boss 12.

[0081] In one embodiment, the pushing wheel 5 is provided with convex teeth on its surface.

[0082] Specifically, convex teeth are arranged on the surface of the pushing wheel 5, and the convex teeth can be embedded in the soil layer of the seedlings to form a bite structure, so that the pushing wheel 5 can push the seedlings to move more smoothly.

[0083] Regarding the layout of the pushing wheel 5, after the grid knife 2 is reset, there is friction between the soil layers of the seedlings, each seedling can drive the adjacent seedlings to move, and the seedlings at the rear can push the seedlings in the front to move. Therefore, preferably, the pushing wheel 5 can be set only in part of the ejection boss 12. In this way, the number of pushing wheels 5 set can be reduced, the device structure can be simplified, and the device cost can be reduced.

[0084] In one embodiment, the chassis 1 has a mounting cavity in it, and a pushing drive for driving the pushing wheel 5 to rotate is provided in the mounting cavity.

[0085] Specifically, the top surface of the chassis 1 is used to install the grid knife 2 and to place 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 present solution configures the chassis 1 to have an inner cavity structure, and installs the push drive in the installation cavity, which provides installation space and can provide protection for the push drive.

[0086] In one embodiment, referring to Figure 6The push drive includes a push motor and a push transmission member 6 that are transmission-connected. The push motor is fixed in the mounting cavity. The push transmission member 6 is connected to the push wheel to drive the push wheel 5 to rotate.

[0087] The push wheel 5 is installed in the installation groove 121 of the ejection boss 12, and its installation space is relatively narrow, making it difficult to directly connect the push motor to the push wheel 5. Therefore, in this solution, the push motor is installed in a relatively open position below the top plate of the chassis 1, and a push transmission member 6 is arranged in the middle to transmit rotation, so as to transmit the driving force of the push motor to the push wheel 5.

[0088] In one embodiment, referring to Figure 6 The pushing wheel 5 includes a pushing portion 51 and a wheel axle 52 passing through the pushing portion 51, the pushing portion 51 is located in the mounting groove 121, and the two ends of the wheel axle 52 are rotatably connected to the side walls of the mounting groove 121 respectively; the pushing transmission member 6 includes a meshing driving gear 61 and a driven gear 62, the driving gear 61 is connected to the pushing motor, and the driven gear 62 is connected to the wheel axle 52, thereby driving the pushing wheel 5 to rotate.

[0089] Specifically, Figure 6 A partial vertical sectional view of the seedling delivery device at the position where the pushing wheel 5 is installed is shown, wherein the top side thereof corresponds to the top surface of the chassis 1, where the pushing wheel 5 is installed, and the bottom side corresponds to the installation cavity on the bottom side of the chassis 1, wherein the pushing transmission member 6 is installed. As can be seen from the figure, the driven gear 62 and the driving gear 61 are arranged up and down, and the pushing motor can be directly connected or transmission connected to the driving gear 61, so that the pushing motor drives the driving gear 61 to rotate, and the driving gear 61 drives the driven gear 62 to rotate, and the driven gear 62 then drives the pushing part 51 to rotate through the wheel shaft 52, thereby achieving the purpose of the pushing part 51 pushing the seedlings to move.

[0090] In one embodiment, each of the pushing wheels 5 is connected to a corresponding pushing transmission member 6, and a plurality of driving gears 61 in the same horizontal row are connected to a transmission shaft 63, so that one pushing motor can synchronously drive a plurality of pushing wheels 5 to rotate.

[0091] That is, multiple driving gears 61 in the same horizontal row are connected in series through the transmission shaft 63. Only one push motor in the same horizontal row is needed to drive the transmission shaft 63 to rotate, so that all driving gears 61 can be driven to rotate, thereby achieving the purpose of driving the entire row of push wheels 5 to rotate synchronously. Therefore, this structure can greatly reduce the number of push motors, reduce the cost of the device, and also help to ensure the synchronization of the rotation of all push wheels 5.

[0092] On the other hand, a seedling throwing machine is provided, comprising a seedling delivery device and a seedling taking device, wherein the seedling delivery device can cut the seedlings in a blanket, and the seedling taking device can take out the cut seedlings and throw them out.

[0093] Similarly, the rice seedling throwing machine of the present embodiment adopts the above-mentioned rice seedling delivery device. Before throwing the rice seedlings, the grid knife 2 can be used to separate the blanket seedlings into pot seedlings or hole blanket seedlings. When the rice seedling throwing machine of the present embodiment is used for planting, the number of seedlings in the divided units is more uniform, and the size and weight of the soil blocks on the heads of the seedlings 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 spacing of the seedlings in the field.

[0094] On the other hand, a drone rice seedling transplanting device is provided, comprising a drone and a rice seedling transplanter, wherein the rice seedling transplanter is mounted under the drone.

[0095] Specifically, the drone has the advantage of high flight speed, and the seedling-casting machine carried under the drone does not need to contact the soil and water in the field, so its running resistance is smaller, which is conducive to increasing the transfer speed of the seedling-casting machine, and thus can improve the efficiency of seedling-casting. In addition, the drone seedling-casting equipment of this embodiment is equipped with the above seedling-casting machine, which is conducive to improving the uniformity of the growth of the field seedlings after planting, and improving the uniformity of the planting spacing of the field seedlings.

[0096] In the description of this article, it should be understood that the terms "upper", "lower", "left", "right", etc., and other directions or positional relationships 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 specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of this application. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0097] In the description of this specification, the description with reference to the terms "an embodiment", "example", etc. 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 invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example.

[0098] In addition, it should be understood that although this specification is described according to implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0099] The technical principles of the present application are described above in conjunction with specific embodiments. These descriptions are only for explaining the principles of the present application and cannot be interpreted as limiting the scope of protection of the present application in any way. Based on the explanations herein, those skilled in the art can think of other specific implementation methods of the present application without creative work, and these methods will fall within the scope of protection of the present application.

Claims

1. A seedling separation mechanism, characterized in that: include: Grid knife (2); A chassis (1) having a top surface provided with a grid groove (11) corresponding to the grid knife (2), so that the descending grid knife (2) can be embedded in the grid groove (11); The seedling pressing fence is arranged above the chassis (1) and is used to press the blanket seedlings onto the chassis (1) so that the raised grid knife (2) can cut the soil layer of the blanket seedlings.

2. The seedling separation mechanism according to claim 1, characterized in that: It also includes a lifting drive (3), which is connected to the mesh knife (2) and is used to drive the mesh knife (2) to move up and down relative to the chassis (1).

3. The seedling separation mechanism according to claim 2, characterized in that: The travel of the lifting drive (3) to drive the mesh knife (2) to rise and fall is set so that the mesh knife (2) never completely escapes from the mesh slot (11).

4. The seedling separation mechanism according to claim 2, characterized in that: The lifting drive (3) comprises a relatively movable fixing part (31) and a driving part (32), wherein the fixing part (31) is relatively fixedly arranged with respect to the chassis (1), and the driving part (32) is connected with the grid knife (2).

5. The seedling separation mechanism according to claim 4, characterized in that: The grid knife (2) comprises a blade portion (21) and a support frame (22) arranged around the periphery of the blade portion (21), and the driving portion (32) is connected to the support frame (22).

6. The seedling separation mechanism according to claim 5, characterized in that: At least two opposite sides of the support frame (22) are respectively connected to a driving portion (32).

7. The seedling separation mechanism according to claim 5, characterized in that: The invention also comprises a guide member (4), wherein the guide member (4) comprises a guide portion (41) and a lifting portion (42) which can be lifted and lowered relative to each other, wherein the guide portion (41) is fixedly arranged relative to the chassis (1), and the lifting portion (42) is connected to the support frame (22), and the lifting portion (42) is guided to lift and lower linearly through the guide portion (41), thereby guiding the lifting and lowering of the grid knife (2).

8. The seedling separation mechanism according to claim 5, characterized in that: The lifting drive (3) comprises a rotating drive member and a lifting transmission member, wherein the input end and the output end of the lifting transmission member are respectively connected to the rotating drive member and the support frame (22), and the rotating motion of the rotating drive member is converted into the lifting motion of the grid knife (2) through the lifting transmission member.

9. The seedling separation mechanism according to claim 8, characterized in that: The lifting transmission component comprises 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 seedling separation mechanism according to claim 8, characterized in that: The lifting transmission member comprises a gear and a rack matched with each other, the gear is connected to the rotating driving member, and the rack is connected to the supporting frame (22).

11. The seedling separation mechanism according to claim 5, characterized in that: The lifting drive (3) component comprises a linear drive component, and the linear drive component is an electromagnet, a cylinder or a hydraulic cylinder.

12. A seedling conveying device, characterized in that: It comprises the seedling separation mechanism described in any one of claims 1 to 11, wherein an ejection boss (12) corresponding to the mesh holes of the grid knife (2) is formed on the chassis (1) between the grid grooves (11), and a pushing wheel (5) for pushing the seedlings is arranged on the ejection boss (12).

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

14. The seedling conveying device according to claim 13, characterized in that: The pushing wheel (5) is provided with convex teeth on its surface.

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

16. The seedling conveying device according to claim 15, characterized in that: The push drive comprises a push motor and a push transmission member (6) which are transmission-connected, the push motor is fixed in the installation cavity, and the push transmission member (6) is connected to the push wheel to drive the push wheel (5) to rotate.

17. The seedling conveying device according to claim 16, characterized in that: The pushing wheel (5) comprises a pushing portion (51) and a wheel axle (52) passing through the pushing portion (51); the pushing portion (51) is located in the mounting recess (121); two ends of the wheel axle (52) are rotatably connected to the side walls of the mounting recess (121); the pushing transmission member (6) comprises a driving gear (61) and a driven gear (62) meshing with each other; the driving gear (61) is connected to the pushing motor, and the driven gear (62) is connected to the wheel axle (52), thereby driving the pushing wheel (5) to rotate.

18. The seedling conveying device according to claim 17, characterized in that: Each of the pushing wheels (5) is connected to a corresponding pushing transmission member (6), and a plurality of driving gears (61) located in the same horizontal row are connected to a transmission shaft (63), so that one pushing motor can synchronously drive a plurality of the pushing wheels (5) to rotate.

19. A rice seedling throwing machine, characterized in that: It comprises a seedling delivery device and a seedling taking device, wherein the seedling delivery device can cut the blanket seedlings, and the seedling taking device can take out the seedlings after cutting and throw them out; wherein the seedling delivery device is the seedling delivery device described in any one of claims 12-18.

20. A drone seedling throwing device, characterized in that: It comprises a drone and a rice-transporting machine, wherein the rice-transporting machine is mounted under the drone; the rice-transporting machine is the rice-transporting machine described in claim 19.

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