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, and the seedling separating mechanism comprises a chassis, the top surface of which is used for placing blanket seedlings; the seedling pressing fence is arranged above the chassis and is used for pressing blanket seedlings on the chassis; the seedling cutting knife group comprises a transverse seedling cutting knife group and a longitudinal seedling cutting knife group which are perpendicular to each other, the soil layer of the carpet seedlings on the chassis can be transversely cut into multiple rows through the transverse seedling cutting knife group, and the soil layer of the carpet seedlings on the chassis can be longitudinally cut into multiple columns through the longitudinal seedling cutting knife group. 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] The bottom plate, the top surface is used for placing blanket seedlings;

[0007] A seedling pressing fence is arranged above the chassis and is used to press the blanket seedlings onto the chassis;

[0008] The seedling cutting knife group includes a transverse seedling cutting knife group and a longitudinal seedling cutting knife group which are arranged perpendicular to each other. The transverse seedling cutting knife group can be used to transversely cut the soil layer of the seedling blanket on the chassis into multiple rows, and the longitudinal seedling cutting knife group can be used to longitudinally cut the soil layer of the seedling blanket on the chassis into multiple columns.

[0009] Optionally, a grid groove is provided on the top surface of the chassis, and the grid groove includes a plurality of mutually perpendicular transverse strip grooves and longitudinal strip grooves, the transverse strip grooves are arranged corresponding to the transverse seedling cutting knife group to guide the transverse movement of the transverse seedling cutting knife group; the longitudinal strip grooves are arranged corresponding to the longitudinal seedling cutting knife group to guide the longitudinal movement of the longitudinal seedling cutting knife group.

[0010] Optionally, the transverse seedling cutting knife group and the longitudinal seedling cutting knife group respectively include a plurality of seedling cutting knife units, and the seedling cutting knife unit includes a knife rod and a blade connected to the end of the knife rod and extending upward, and the knife rod drives the blade to move transversely or longitudinally to cut the soil layer of the seedling blanket.

[0011] Optionally, the transverse strip groove and the longitudinal strip groove respectively include a plurality of strip groove units corresponding to the seedling cutting knife unit, the strip groove unit includes a blade guide groove and a knife rod guide groove arranged up and down, the width of the blade guide groove matches the blade, the width of the knife rod guide groove matches the knife rod, the knife rod is placed in the knife rod guide groove, and the blade passes through the blade guide groove and extends upward out of the top surface of the chassis.

[0012] Optionally, it also includes a knife group drive, which includes a transverse drive and a longitudinal drive, the transverse drive is connected to the transverse seedling cutting knife group to drive the transverse seedling cutting knife group to move transversely; the longitudinal drive is connected to the longitudinal seedling cutting knife group to drive the longitudinal seedling cutting knife group to move longitudinally.

[0013] Optionally, the transverse drive and the longitudinal drive both include a rotational drive member and a translational transmission member, the input end and the output end of the translational transmission member are respectively connected to the knife rod, and the rotational motion of the rotational drive member is converted into a linear movement of the seedling cutting knife unit through the translational transmission member.

[0014] Optionally, the translation transmission member includes a threaded sleeve rotatably mounted on the side of the chassis, the threaded sleeve is transmission-connected to the rotary drive member, and the outer periphery of the knife rod is provided with an external thread that cooperates with the threaded sleeve, the knife rod passes through the threaded sleeve, and the threaded sleeve is driven to rotate by the rotary drive member, thereby driving the linear movement of the seedling cutting knife unit.

[0015] Optionally, the translation transmission member also includes an intermediate transmission member, and two adjacent threaded sleeves are connected via the intermediate transmission member, so that one rotation driving member can drive all the threaded sleeves in the transverse drive to rotate synchronously, and one rotation driving member can drive all the threaded sleeves in the longitudinal drive to rotate synchronously.

[0016] Optionally, the translation transmission member includes a transmission gear rotatably mounted on the side of the chassis, the transmission gear is transmission-connected to the rotary drive member, and one side of the knife rod is provided with a bar tooth that cooperates with the transmission gear, and the transmission gear is driven to rotate by the rotary drive member to achieve linear movement of the seedling cutting knife unit.

[0017] Optionally, the translation transmission member also includes an intermediate transmission member, and two adjacent transmission gears are connected via the intermediate transmission member, so that one rotation driving member can drive all the transmission gears in the transverse drive to rotate synchronously, and one rotation driving member can drive all the transmission gears in the longitudinal drive to rotate synchronously.

[0018] Optionally, the transverse drive and the longitudinal drive both include a linear drive member, and the linear drive member is a cylinder or a hydraulic cylinder.

[0019] Optionally, the transverse drive and the longitudinal drive both include a main pushing arm, and all the knife bars in the transverse seedling cutting knife group are simultaneously connected to one main pushing arm, so that one linear drive can drive all the seedling cutting knife units in the transverse seedling cutting knife group to move linearly; all the knife bars in the longitudinal seedling cutting knife group are simultaneously connected to one main pushing arm, so that one linear drive can drive all the seedling cutting knife units in the longitudinal seedling cutting knife group to move linearly.

[0020] On the other hand, a seedling delivery device is provided, comprising the above seedling separation mechanism, wherein a boss is formed on the chassis between the grid grooves, and a pushing wheel for pushing the blanket seedlings is arranged on the boss.

[0021] Optionally, a mounting groove is provided on the boss corresponding to the mounting of the pushing wheel, the pushing wheel is rotatably mounted 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 blanket seedlings located on the top surface of the chassis.

[0022] Optionally, the pushing wheel surface is provided with convex teeth.

[0023] Optionally, the chassis has an installation cavity, and a push drive for driving the push wheel to rotate is provided in the installation cavity.

[0024] 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.

[0025] 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.

[0026] 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.

[0027] 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.

[0028] 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.

[0029] The beneficial effects of the present application are as follows: the present invention provides a seedling-separating mechanism, a seedling-transporting machine and a drone seedling-transporting device, wherein the seedling-separating mechanism includes a seedling-cutting knife group. Before the seedling-transporting operation, the seedling-cutting knife group can be used to quickly split the soil layer of the blanket seedlings in the horizontal and vertical directions, and the blanket seedlings can be made into pot seedlings or hole blanket seedlings, so as to achieve the effect of pre-separation. After the segmentation, the soil block size of each seedling unit head 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-transporting machine. When the seedling-taking mechanism takes the seedlings and transports the seedlings, one seedling unit after the segmentation can be directly taken out and thrown out each time. Therefore, compared with the traditional seedling-transporting machine directly tearing the seedlings out of the blanket seedlings, the number of plants of the seedling units after the segmentation completed by the seedling-separating mechanism of the present scheme is more uniform, and the size and weight of the soil block on 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present application is further described in detail below based on the drawings and embodiments.

[0031] Figure 1 It is a structural schematic diagram of the seedling separation mechanism or the seedling delivery device described in the embodiment of the present application;

[0032] Figure 2 for Figure 1 A magnified schematic diagram of the middle A area;

[0033] Figure 3 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;

[0034] Figure 4 A partial cross-sectional view of the chassis described in the embodiment of the present application;

[0035] Figure 5 This is one of the structural schematic diagrams of the transverse seedling cutting knife group or the longitudinal seedling cutting knife group described in the embodiment of the present application;

[0036] Figure 6 This is the second structural schematic diagram of the transverse seedling cutting knife group or the longitudinal seedling cutting knife group described in the embodiment of the present application;

[0037] Figure 7 for Figure 6 A magnified schematic diagram of area B.

[0038] In the figure:

[0039] 1. chassis; 11. grid groove; 111. transverse strip groove; 112. longitudinal strip groove; 113. strip groove unit; 1131. blade guide groove; 1132. knife bar guide groove; 12. boss; 121. mounting sink groove; 2. seedling cutting knife group; 21. transverse seedling cutting knife group; 22. longitudinal seedling cutting knife group; 23. seedling cutting knife unit; 231. blade; 232. knife bar; 24. knife group mounting seat; 25. threaded sleeve; 26. intermediate transmission member; 261. sprocket; 262. chain; 3. push wheel; 4. push transmission member; 41. driving gear; 42. driven gear; 43. transmission shaft. DETAILED DESCRIPTION

[0040] 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.

[0041] 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.

[0042] 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.

[0043] 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.

[0044] 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.

[0045] like Figure 1-2 As shown, this embodiment provides a seedling separation mechanism, including:

[0046] The bottom plate 1, the top surface is used for placing blanket seedlings;

[0047] A seedling pressing fence is arranged above the chassis 1 and is used to press the blanket seedlings onto the chassis 1;

[0048] The seedling cutting knife group 2 includes a transverse seedling cutting knife group 21 and a longitudinal seedling cutting knife group 22 which are arranged perpendicular to each other. The transverse seedling cutting knife group can be used to cut the soil layer of the seedling blanket on the chassis 1 into multiple rows transversely, and the longitudinal seedling cutting knife group 22 can be used to cut the soil layer of the seedling blanket on the chassis 1 into multiple columns longitudinally.

[0049] Specifically, refer to Figure 1The seedling cutting knife group 2 includes a transverse seedling cutting knife group 21 and a longitudinal seedling cutting knife group 22 whose cutting directions are perpendicular to each other. After the blanket seedlings are placed on the chassis 1, the transverse seedling cutting knife group 21 and the longitudinal seedling cutting knife group 22 are started successively to cut the soil layer of the blanket seedlings in the transverse and longitudinal directions, so that the soil layer of the blanket seedlings is divided into square blocks arranged in a matrix to obtain a plurality of independent seedling units. In actual operation, when the seedling cutting knife group 2 completely cuts through the soil layer, the soil layers between the seedling units are not connected after cutting, that is, the original blanket seedlings are divided into pot seedlings; when the seedling cutting knife group 2 does not completely cut through the soil layer, and the thin layer on the top surface of the soil layer is kept connected, the top layers of the soil layers between the seedling units are still connected, that is, the original blanket seedlings are divided into hole blanket seedlings. As hole blanket seedlings, most of the thickness of the soil layer and the root system of the seedlings are separated and cut off, so when the seedling taking mechanism takes out the seedling unit, the entire seedling unit can be basically taken out completely with the soil.

[0050] In order to prevent the blanket seedlings from arching up when the seedling cutting knife group 2 cuts through the blanket seedlings horizontally and vertically, the present solution provides a seedling pressing fence above the chassis 1 to compact the blanket seedlings. When applied, this field can be set in combination with the existing seedling pressing device. In actual operation, in order to improve the compaction degree of the blanket seedling soil layer, relative to the existing seedling pressing device, the seedling pressing fence of the present 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 blanket seedling soil layer. In addition, in order to prevent the top of the seedling cutting knife group 2 from interfering with the seedling pressing rod, it is preferred that the top of the seedling cutting knife group 2 is slightly lower than the seedling pressing rod. Obviously, with such a setting, a small amount of soil in the top layer of the blanket seedling soil layer cannot be cut by the seedling cutting knife group 2, so at this time, what is obtained after the seedling cutting knife group 2 cuts is the hole blanket seedling.

[0051] In summary, based on the seedling separation mechanism of this embodiment, before transplanting, the seedling cutting knife group 2 can be used to quickly divide the soil layer of the blanket seedlings in the horizontal and vertical directions, and the blanket seedlings can be made into pot seedlings or hole blanket seedlings, so as 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 plants of the seedling units after the division is completed 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 grid groove 11 is provided on the top surface of the chassis 1, and the grid groove 11 includes a plurality of mutually perpendicular transverse strip grooves 111 and longitudinal strip grooves 112. The transverse strip grooves 111 are arranged corresponding to the transverse seedling cutting knife group 21 to guide the transverse movement of the transverse seedling cutting knife group 21; the longitudinal strip grooves 112 are arranged corresponding to the longitudinal seedling cutting knife group 22 to guide the longitudinal movement of the longitudinal seedling cutting knife group 22.

[0053] Specifically, on the basis that the chassis 1 is used as a support body for the soil layer directly contacting the seedling blanket, and the seedling cutting knife group 2 only cuts the soil layer of the seedling blanket, the present solution sets a grid groove 11 corresponding to the seedling cutting path of the seedling cutting knife group 2 on the chassis 1, and uses the grid groove 11 to provide guidance for the movement of the seedling cutting knife group 2, so as to achieve the effect of ensuring the stability of the movement of the seedling cutting knife group 2. In addition, the grid groove 11 specifies the movement path of the seedling cutting knife group 2, that is, the grid groove 11 ensures the uniformity of the size of each seedling unit after segmentation.

[0054] In one embodiment, referring to Figure 5-7 The horizontal seedling cutting knife group 21 and the vertical seedling cutting knife group 22 respectively include a plurality of seedling cutting knife units 23, and the seedling cutting knife unit 23 includes a knife rod 232 and a blade 231 connected to the end of the knife rod 232 and extending upward, and the blade 231 is driven by the knife rod 232 to move horizontally or vertically to cut the soil layer of the blanket seedlings.

[0055] Specifically, each seedling cutting knife unit 23 completes one cut of the blanket seedlings with one linear reciprocating motion, leaving a cutting seam in the blanket seedling soil layer. A structure combining a knife bar 232 and a blade 231 is provided, wherein the knife bar 232 provides strength support and drives the blade 231 to move linearly, and the blade 231 cuts the blanket seedlings. This structure has the advantage of good reliability.

[0056] In one embodiment, referring to Figure 2 The transverse strip groove 111 and the longitudinal strip groove 112 respectively include a plurality of strip groove units 113 corresponding to the seedling cutting knife unit 23, and the strip groove unit 113 includes a blade guide groove 1131 and a knife bar guide groove 1132 arranged up and down, the width of the blade guide groove 1131 matches the blade 231, the width of the knife bar guide groove 1132 matches the knife bar 232, the knife bar 232 is placed in the knife bar guide groove 1132, and the blade 231 passes through the blade guide groove 1131 and extends upward out of the top surface of the chassis 1.

[0057] Specifically, corresponding to the structure of the seedling cutting knife unit 23, the strip groove unit 113 is set to a structure of a blade guide groove 1131 and a knife rod guide groove 1132 composed of an upper and a lower structure, which can provide a limiting guide for the knife rod 232 and a part of the blade 231 at the same time, avoiding the knife rod 232 and the blade 231 from being cheap and deformed during the movement, thereby ensuring the reliability of the structure and movement of the seedling cutting knife unit 23.

[0058] In one embodiment, in order to realize the mobile cutting of the automatically driven seedling cutting knife group 2, the seedling separating mechanism of this embodiment also includes a knife group drive, and the knife group drive includes a transverse drive and a longitudinal drive. The transverse drive is connected to the transverse seedling cutting knife group 21 to drive the transverse seedling cutting knife group 21 to move transversely; the longitudinal drive is connected to the longitudinal seedling cutting knife group 22 to drive the longitudinal seedling cutting knife group 22 to move longitudinally.

[0059] The knife group drive is provided to drive the movement of the seedling cutting knife group 2, so that the automatic cutting function can be realized. There is no need for manpower to push the seedling cutting knife group 2, thus reducing manpower input. Moreover, the knife group can effectively speed up the movement speed of the seedling cutting knife group 2.

[0060] Of course, in other embodiments, the movement of the seedling cutting knife group 2 can also be directly driven by manpower, that is, the seedling cutting knife group 2 is manually pushed to achieve the purpose of cutting seedlings. This method can greatly simplify the structure of the device and reduce the cost of the device.

[0061] Regarding the setting of the knife group drive, in one embodiment, the lateral drive and the longitudinal drive both include a rotational drive member and a translational transmission member, the input end and the output end of the translational transmission member are respectively connected to the knife rod 232, and the rotational motion of the rotational drive member is converted into a linear movement of the seedling cutting knife unit 23 through the translational transmission member.

[0062] Specifically, the rotary drive member is a common drive member, which can be a motor, a hydraulic motor, etc., and the rotation of its output shaft drives the translational transmission member to operate. The translational transmission member can be a transmission mechanism such as a worm gear, a gear rack, a synchronous belt, a connecting rod, etc., and the rotation of the input end is converted into a linear reciprocating motion of the output end to achieve the function of driving the seedling cutting knife unit 23 to move. This solution uses a combination of a rotary drive member and a translational transmission member to drive the movement of the seedling cutting knife unit 23, which has the advantages of mature technology and easy implementation.

[0063] In one embodiment, referring to Figure 5-7 The translation transmission member includes a threaded sleeve 25 rotatably mounted on the side of the chassis 1, the threaded sleeve 25 is transmission-connected to the rotary drive member (not shown), and the outer periphery of the knife rod 232 is provided with an external thread that cooperates with the threaded sleeve 25, the knife rod 232 passes through the threaded sleeve 25, and the threaded sleeve 25 is driven to rotate by the rotary drive member, thereby driving the linear movement of the seedling cutting knife unit 23.

[0064] Specifically, in order to realize the rotatable installation of the threaded sleeve 25, preferably, a tool group mounting seat 24 is provided on the side of the chassis 1, and the threaded sleeve 25 is rotatably installed on the tool group mounting seat 24; regarding the connection between the rotating drive member and the threaded sleeve 25, preferably, a chain traditional or gear transmission structure can be set between the rotating drive member and the threaded sleeve 25, so that the rotating drive member can drive the threaded sleeve 25 to rotate.

[0065] In this structure, the rotational freedom of the seedling cutting knife unit 23 is limited. When the threaded sleeve 25 rotates, it will push the threaded knife rod 232 to move axially, that is, to achieve the purpose of pushing the seedling cutting knife unit 23 to translate and cut the blanket seedlings.

[0066] In one embodiment, the translation transmission member also includes an intermediate transmission member 26, and two adjacent threaded sleeves 25 are connected by the intermediate transmission member 26, so that one rotation driving member can drive all the threaded sleeves 25 in the transverse drive to rotate synchronously, and one rotation driving member can drive all the threaded sleeves 25 in the longitudinal drive to rotate synchronously.

[0067] Specifically, an intermediate transmission member 26 is provided between two adjacent threaded sleeves 25, so that when one threaded sleeve 25 rotates, all the threaded sleeves 25 are driven to rotate synchronously, thereby achieving the purpose of one rotating driving member driving all the threaded sleeves to rotate and simplifying the equipment structure; at the same time, it can also ensure the synchronization of the movement of all seedling cutting knife units 23 and realize synchronous cutting.

[0068] Optionally, the intermediate transmission member 26 may be a chain transmission or a gear transmission. For example, two sprocket wheels 261 are provided on each threaded sleeve 25, and a chain 262 is used to connect the two sprocket wheels 261 between two adjacent threaded sleeves 25, so that the rotation between any two adjacent threaded sleeves 25 can be transmitted to each other.

[0069] In another embodiment, the translation transmission member includes a transmission gear rotatably mounted on the side of the chassis 1, the transmission gear is transmission-connected to the rotary drive member, and one side of the knife rod 232 is provided with a bar tooth that cooperates with the transmission gear, and the transmission gear is driven to rotate by the rotary drive member to realize driving the seedling cutting knife unit 23 to move linearly.

[0070] The illustration of this description does not show the structure of the transmission gear and the bar teeth cooperating to drive. The form of the transmission gear and the bar teeth cooperating can be set with reference to the aforementioned form of the threaded sleeve 25 and the screw rod cooperating. The difference is that in this method, the axial direction of the transmission gear is perpendicular to the axial direction of the tool rod 232.

[0071] In one embodiment, the translation transmission member also includes an intermediate transmission member 26, and two adjacent transmission gears are connected via the intermediate transmission member 26, so that one rotation driving member can drive all the transmission gears in the transverse drive to rotate synchronously, and one rotation driving member can drive all the transmission gears in the longitudinal drive to rotate synchronously.

[0072] Specifically, by adopting the gear rack transmission mode, the axes of all gears can be located on the same straight line, so two adjacent transmission gears can be connected by a connecting shaft for transmission, that is, the intermediate transmission member 26 can be set as a connecting shaft.

[0073] In one embodiment, the transverse drive and the longitudinal drive both include a linear drive member, and the linear drive member is a pneumatic cylinder or a hydraulic cylinder.

[0074] 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.

[0075] Furthermore, the transverse drive and the longitudinal drive both include a main pushing arm, and all the knife bars 232 in the transverse seedling cutting knife group 21 are simultaneously connected to one main pushing arm, so that one linear drive can drive all the seedling cutting knife units 23 in the transverse seedling cutting knife group 21 to move linearly; all the knife bars 232 in the longitudinal seedling cutting knife group 22 are simultaneously connected to one main pushing arm, so that one linear drive can drive all the seedling cutting knife units 23 in the longitudinal seedling cutting knife group 22 to move linearly.

[0076] Similarly, at this time, a linear drive can be used to push the main push arm to move horizontally, thereby driving all the seedling cutting knife units 23 to move linearly synchronously, which can simplify the setting of the linear drive and reduce costs.

[0077] On the other hand, the present embodiment further provides a seedling delivery device, which includes the aforementioned seedling separation mechanism, wherein a boss 12 is formed on the chassis 1 between the grid grooves 11, and a pushing wheel 3 for pushing the blanket seedlings is provided on the boss 12.

[0078] 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.

[0079] 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 3 is provided on the boss 12. After the seedling cutting knife group 2 completes the cutting and resetting, the pushing wheel 3 is started to 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 and throw out the seedlings one by one. That is, this solution can provide the function of pushing the seedlings after the segmentation on the basis of realizing the segmentation of the blanket seedlings before throwing the seedlings, and there is no need to transfer the seedlings after segmentation, and the pushing wheel 3 on the boss 12 can be directly used to push them.

[0080] In other embodiments, a seedling pushing mechanism can be provided above the chassis 1 on a side opposite to the seedling taking mechanism (i.e., the side where the longitudinal seedling cutting knife group 22 is located), and the seedling pushing mechanism can be used to gradually push the segmented seedlings toward the seedling taking mechanism.

[0081] It is assumed that the pushing wheel 3 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 relative to each other laterally, so that the seedling taking mechanism can take out and throw out the seedling units one by one along the transverse direction.

[0082] In one embodiment, a mounting groove 121 is provided on the boss 12 corresponding to the mounting of the pushing wheel 3, the pushing wheel 3 is rotatably mounted in the mounting groove 121, and the top of the pushing wheel 3 protrudes out of the mounting groove 121, so that the pushing wheel 3 can push the blanket seedlings located on the top surface of the chassis 1.

[0083] The push wheel 3 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 3, so as to achieve reliable installation of the push wheel 3. It should be noted that in order for the push wheel 3 to contact and push the seedlings, a portion of the push wheel 3 needs to protrude from the top surface of the boss 12.

[0084] In one embodiment, the pushing wheel 3 is provided with convex teeth on its surface.

[0085] Specifically, convex teeth are arranged on the surface of the pushing wheel 3, and the convex teeth can be embedded in the soil layer of the seedlings to form a bite structure, so that the pushing wheel 3 can push the seedlings to move more smoothly.

[0086] Regarding the layout of the pushing wheel 3, since there is friction between the soil layers of the seedling units after cutting, 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 3 can be set only in part of the boss 12. In this way, the number of pushing wheels 3 can be reduced, the device structure can be simplified, and the device cost can be reduced.

[0087] In one embodiment, the chassis 1 has a mounting cavity in it, and a pushing drive for driving the pushing wheel 3 to rotate is provided in the mounting cavity.

[0088] Specifically, the top surface of the chassis 1 is used for placing seedlings. In order to avoid interference with the placement of the seedlings and realize the driving of the push wheel 3 at the same time, the chassis 1 is configured to have an inner cavity structure, and the push drive is installed in the installation cavity, which provides an installation space and can provide protection for the push drive.

[0089] In one embodiment, the push drive includes a push motor and a push transmission member 4 that are transmission-connected. The push motor is fixed in the mounting cavity. The push transmission member 4 is connected to the push wheel to drive the push wheel 3 to rotate.

[0090] The push wheel 3 is installed in the installation groove 121 of the boss 12, and its installation space is relatively narrow, making it difficult to directly connect the push motor to the push wheel 3. 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 4 is arranged in the middle to transmit rotation, so as to transmit the driving force of the push motor to the push wheel 3.

[0091] In one embodiment, referring to Figure 3 The pushing wheel 3 includes a pushing portion and a wheel axle passing through the pushing portion, the pushing portion is located in the mounting groove 121, and the two ends of the wheel axle are rotatably connected to the side walls of the mounting groove 121 respectively; the pushing transmission member 4 includes a meshing driving gear 41 and a driven gear 42, the driving gear 41 is connected to the pushing motor, and the driven gear 42 is connected to the wheel axle, thereby driving the pushing wheel 3 to rotate.

[0092] Specifically, Figure 3 A partial vertical sectional view of the seedling delivery device at the position where the pushing wheel 3 is installed is shown, wherein the top side thereof corresponds to the top surface of the chassis 1, where the pushing wheel 3 is installed, and the bottom side corresponds to the installation cavity on the bottom side of the chassis 1, wherein the pushing transmission member 4 is installed. As can be seen from the figure, the driven gear 42 and the driving gear 41 are arranged up and down, and the pushing motor can be directly connected or transmission-connected to the driving gear 41, so that the pushing motor drives the driving gear 41 to rotate, and the driving gear 41 drives the driven gear 42 to rotate, and the driven gear 42 then drives the pushing part to rotate through the wheel axle, thereby achieving the purpose of the pushing part pushing the seedlings to move.

[0093] In one embodiment, each of the pushing wheels 3 is connected to a corresponding pushing transmission member 4, and a plurality of driving gears 41 in the same horizontal row are connected to a transmission shaft 43, so that one pushing motor can synchronously drive a plurality of pushing wheels 3 to rotate.

[0094] That is, multiple driving gears 41 in the same horizontal row are connected in series through the transmission shaft 43. Only one push motor in the same horizontal row is needed to drive the transmission shaft 43 to rotate, so that all driving gears 41 can be driven to rotate, thereby achieving the purpose of driving the entire row of push wheels 3 to rotate synchronously. Therefore, this structure can greatly reduce the number of push motors, reduce the device cost, and also help to ensure the synchronization of the rotation of all push wheels 3.

[0095] 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.

[0096] Similarly, the rice seedling throwing machine of the present embodiment adopts the above-mentioned rice seedling delivery device. Before throwing the rice seedlings, the seedling cutting knife group 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.

[0097] 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.

[0098] 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.

[0099] 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.

[0100] 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.

[0101] 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.

[0102] 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: A bottom plate (1), the top surface of which is used for placing blanket seedlings; A seedling pressing fence is arranged above the chassis (1) and is used to press the blanket seedlings onto the chassis (1); The seedling cutting knife group (2) comprises a transverse seedling cutting knife group (21) and a longitudinal seedling cutting knife group (22) which are arranged perpendicular to each other. The transverse seedling cutting knife group can be used to cut the soil layer of the seedling blanket on the chassis (1) into a plurality of rows transversely, and the longitudinal seedling cutting knife group (22) can be used to cut the soil layer of the seedling blanket on the chassis (1) into a plurality of columns longitudinally.

2. The seedling separation mechanism according to claim 1, characterized in that: The top surface of the chassis (1) is provided with a grid groove (11), the grid groove (11) comprising a plurality of mutually perpendicular transverse strip grooves (111) and longitudinal strip grooves (112), the transverse strip grooves (111) being arranged correspondingly to the transverse seedling cutting knife group (21) for guiding the transverse movement of the transverse seedling cutting knife group (21); the longitudinal strip grooves (112) being arranged correspondingly to the longitudinal seedling cutting knife group (22) for guiding the longitudinal movement of the longitudinal seedling cutting knife group (22).

3. The seedling separation mechanism according to claim 2, characterized in that: The transverse seedling cutting knife group (21) and the longitudinal seedling cutting knife group (22) respectively include a plurality of seedling cutting knife units (23), wherein the seedling cutting knife unit (23) includes a knife rod (232) and a blade (231) connected to the end of the knife rod (232) and extending upward, and the blade (231) is driven by the knife rod (232) to move transversely or longitudinally to cut the soil layer of the seedling blanket.

4. The seedling separation mechanism according to claim 3, characterized in that: The transverse strip groove (111) and the longitudinal strip groove (112) respectively include a plurality of strip groove units (113) corresponding to the seedling cutting knife unit (23); the strip groove unit (113) includes a blade guide groove (1131) and a knife bar guide groove (1132) arranged up and down; the width of the blade guide groove (1131) matches the blade (231); the width of the knife bar guide groove (1132) matches the knife bar (232); the knife bar (232) is placed in the knife bar guide groove (1132); the blade (231) passes through the blade guide groove (1131) and extends upward out of the top surface of the chassis (1).

5. The seedling separation mechanism according to claim 3, characterized in that: The invention also comprises a knife group drive, wherein the knife group drive comprises a transverse drive and a longitudinal drive, wherein the transverse drive is connected to the transverse seedling cutting knife group (21) to drive the transverse seedling cutting knife group (21) to move transversely; and the longitudinal drive is connected to the longitudinal seedling cutting knife group (22) to drive the longitudinal seedling cutting knife group (22) to move longitudinally.

6. The seedling separation mechanism according to claim 5, characterized in that: The transverse drive and the longitudinal drive both comprise a rotary drive member and a translation transmission member, the input end and the output end of the translation transmission member being respectively connected to the knife rod (232), and the rotational motion of the rotary drive member being converted into a linear motion of the seedling cutting knife unit (23) through the translation transmission member.

7. The seedling separation mechanism according to claim 6, characterized in that: The translation transmission member comprises a threaded sleeve (25) rotatably mounted on the side of the chassis (1); the threaded sleeve (25) is in transmission connection with the rotary drive member; and the outer periphery of the knife rod (232) is provided with an external thread that matches the threaded sleeve (25); the knife rod (232) passes through the threaded sleeve (25); the threaded sleeve (25) is driven to rotate by the rotary drive member, thereby driving the seedling cutting knife unit (23) to move linearly.

8. The seedling separation mechanism according to claim 7, characterized in that: The translation transmission member also includes an intermediate transmission member (26), and two adjacent threaded sleeves (25) are connected in transmission via the intermediate transmission member (26), so that one of the rotation driving members can drive all of the threaded sleeves (25) in the transverse drive to rotate synchronously, and one of the rotation driving members can drive all of the threaded sleeves (25) in the longitudinal drive to rotate synchronously.

9. The seedling separation mechanism according to claim 6, characterized in that: The translation transmission member comprises a transmission gear rotatably mounted on a side of the chassis (1), the transmission gear being in transmission connection with the rotary drive member, and a bar tooth matched with the transmission gear is provided on one side of the knife rod (232), and the transmission gear is driven to rotate by the rotary drive member, thereby driving the seedling cutting knife unit (23) to move linearly.

10. The seedling separation mechanism according to claim 9, characterized in that: The translation transmission member also includes an intermediate transmission member (26), and two adjacent transmission gears are connected to each other through the intermediate transmission member (26), so that one of the rotation driving members can drive all of the transmission gears in the transverse drive to rotate synchronously, and one of the rotation driving members can drive all of the transmission gears in the longitudinal drive to rotate synchronously.

11. The seedling separation mechanism according to claim 5, characterized in that: The transverse drive and the longitudinal drive both include a linear drive member, and the linear drive member is a cylinder or a hydraulic cylinder.

12. The seedling separation mechanism according to claim 11, characterized in that: The transverse drive and the longitudinal drive both comprise a main pushing arm, and all the knife bars (232) in the transverse seedling cutting knife group (21) are simultaneously connected to one main pushing arm, so that one linear drive can drive all the seedling cutting knife units (23) in the transverse seedling cutting knife group (21) to move linearly; and all the knife bars (232) in the longitudinal seedling cutting knife group (22) are simultaneously connected to one main pushing arm, so that one linear drive can drive all the seedling cutting knife units (23) in the longitudinal seedling cutting knife group (22) to move linearly.

13. A seedling conveying device, characterized in that: It comprises the seedling separation mechanism according to any one of claims 2 to 12, wherein a boss (12) is formed on the chassis (1) between the grid grooves (11), and a pushing wheel (3) for pushing the blanket seedlings is arranged on the boss (12).

14. The seedling conveying device according to claim 13, characterized in that: A mounting groove (121) is provided on the boss (12) on which the pushing wheel (3) is mounted, and the pushing wheel (3) is rotatably mounted in the mounting groove (121), and the top of the pushing wheel (3) protrudes out of the mounting groove (121), so that the pushing wheel (3) can push the blanket seedlings located on the top surface of the chassis (1).

15. The seedling conveying device according to claim 14, characterized in that: The surface of the pushing wheel (3) is provided with convex teeth.

16. The seedling conveying device according to claim 14, characterized in that: The chassis (1) has a mounting cavity in it, and a push drive for driving the push wheel (3) to rotate is arranged in the mounting cavity.

17. The seedling conveying device according to claim 16, characterized in that: The push drive comprises a push motor and a push transmission member (4) which are transmission-connected, the push motor is fixed in the installation cavity, and the push transmission member (4) is connected to the push wheel to drive the push wheel (3) to rotate.

18. The seedling conveying device according to claim 17, characterized in that: The pushing wheel (3) comprises a pushing portion and a wheel axle passing through the pushing portion, the pushing portion is located in the mounting groove (121), and the two ends of the wheel axle are rotatably connected to the side walls of the mounting groove (121) respectively; the pushing transmission member (4) comprises a driving gear (41) and a driven gear (42) meshing with each other, the driving gear (41) is connected to the pushing motor, and the driven gear (42) is connected to the wheel axle, so as to realize driving the pushing wheel (3) to rotate.

19. The seedling conveying device according to claim 18, characterized in that: Each of the pushing wheels (3) is connected to a corresponding pushing transmission member (4), and a plurality of driving gears (41) located in the same horizontal row are connected to a transmission shaft (43), thereby realizing that one pushing motor synchronously drives a plurality of the pushing wheels (3) to rotate.

20. 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 13-19.

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

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