Triangular seeding machine

Abstract

The invention discloses a triangular seeding machine, which belongs to the technical field of seeding machines, and comprises a rack, a fertilization assembly and a transmission assembly, the fertilization assembly and the transmission assembly are both mounted on the rack, the input end of the transmission assembly is connected with a land wheel, the output end of the transmission assembly is connected with the fertilization assembly, and the transmission assembly is used for driving the fertilization assembly to fertilize; the fertilizing assembly comprises a fertilizer box, a plurality of fertilizer outlet boxes are arranged at the bottom of the fertilizer box, the fertilizer outlet boxes are communicated with the fertilizer box, rotating bodies are arranged in the fertilizer outlet boxes, and the rotating bodies are connected with the transmission assembly, so that the rotating bodies rotate around the axial direction of the rotating bodies; the rotating surface of the rotating body is located between the inlet and the outlet of the fertilizer outlet box, the rotating surface is provided with a first fertilizer groove and a second fertilizer groove, the volumes of the first fertilizer groove and the second fertilizer groove are different, and the positions of the first fertilizer groove and the second fertilizer groove in the fertilizer outlet box can be adjusted. The fertilizer application amount can be adjusted.

Description

Technical Field

[0001] The invention relates to the technical field of seed drills, in particular to a herringbone seed drill. Background Art

[0002] Seeder is a planting machine that sows crop seeds. When the seeder is in operation, the traveling wheel drives the seed wheel to rotate, and the seeds in the seed box are discharged into the seed delivery tube according to the required sowing amount, and fall into the opened groove through the furrow opener, and then the seeds are covered and compacted by the soil covering and pressing device.

[0003] In order to achieve multi-plant sowing in a unit and ensure that the seeds are accurately arranged in a herringbone shape in the field, a herringbone-shaped seeder has been developed in the prior art. For example, Chinese patent document No. CN117837344A discloses a self-synchronizing herringbone-shaped seeder, including a first transmission assembly and a second transmission assembly. The first transmission assembly and the second transmission assembly can be driven synchronously with each other, and the first transmission assembly and / or the second transmission assembly can drive the seeder for sowing and fertilizing. Only one power input source is required, and multiple power execution results can be output.

[0004] For another example, a Chinese patent document with announcement number CN216930807U discloses a herringbone film side air suction precision film laying and seeding machine, comprising a frame, a seeding tray arranged on the frame, a silo connected to the seeding tray, at least two seeding trays, the seeding trays having a negative pressure chamber and a seed suction hole, the negative pressure chamber being communicated with the seed suction hole, two adjacent seeding trays being coaxial, the seed suction holes on the two adjacent seeding trays being staggered, and also comprising a block arranged on the seeding box, the block being used to close the seed suction hole that passes through the block.

[0005] The above-mentioned prior arts can all realize the herringbone sowing, but cannot adjust the amount of fertilizer applied. Summary of the invention

[0006] The object of the present invention is to provide a herringbone seeding machine to solve the problem that the herringbone seeding machine in the prior art cannot adjust the amount of fertilizer applied.

[0007] To achieve the above object, the present invention provides a triangular seeder, which includes a frame, a fertilizing component and a transmission component. The fertilizing component and the transmission component are both installed on the frame. The input end of the transmission component is connected to a ground wheel, and the output end is connected to the fertilizing component for driving the fertilizing component to apply fertilizer. The fertilizing component includes a fertilizer box, and a plurality of fertilizer discharging boxes are arranged at the bottom of the fertilizer box. The fertilizer discharging boxes are communicated with the fertilizer box. A rotating body is arranged in the fertilizer discharging box. The rotating body is connected to the transmission component to make the rotating body rotate around its axis. The rotating surface of the rotating body is located between the inlet and the outlet of the fertilizer discharging box. The rotating surface is provided with a first fertilizer groove and a second fertilizer groove, and the volumes of the two are different. The positions of the first fertilizer groove and the second fertilizer groove in the fertilizer discharging box are adjustable.

[0008] Further, a plurality of the rotating bodies are connected by a fertilizing shaft. The rotating bodies are coaxially arranged with the fertilizing shaft. The fertilizing shaft is connected to the output end of the transmission component. The rotating bodies are relatively fixed with respect to the fertilizing shaft.

[0009] Further, one end of the fertilizer shaft is connected to the fertilizer box, and an adjusting device is arranged at the other end. The adjusting device drives the fertilizer shaft to move linearly along its axis.

[0010] Further, a seeding component is further included. The output end of the transmission component is connected to the seeding component for driving the seeding component to sow seeds. The fertilizing component and the seeding component work synchronously.

[0011] Further, the transmission component includes a first transmission member, a second transmission member, a third transmission member and a fourth transmission member. The input end of the first transmission member is connected to the ground wheel. The output end of the first transmission member is connected to a power shaft. The power shaft is connected to a seeding shaft through a gearbox. The seeding shaft is connected to the seeding component through the second transmission member and the third transmission member. The seeding shaft is connected to the fertilizing shaft through the fourth transmission member.

[0012] Further, the input end of the second transmission member is connected to the power shaft, and a first engaging tooth is arranged at the output end. A second engaging tooth is arranged at the input end of the third transmission member. The first engaging tooth and the second engaging tooth are connected by one-way engagement. The output end of the third transmission member is connected to the seeding component.

[0013] Further, the seeding component includes a seeding bracket. A seed storage box is arranged at the top of the seeding bracket. A seeding tray is arranged at a position of the seeding bracket close to the ground. The seeding tray is communicated with the seed storage box. The seeding tray is provided with a seed dropping opening. The seeding tray is connected to the output end of the third transmission member for driving the seeding tray to rotate.

[0014] Further, a plurality of groups of the seeding components are arranged, and the initial positions of the seed dropping openings of the seeding trays of adjacent seeding components are different.

[0015] Furthermore, an indicating device is provided at a corresponding position of the seeding assembly, and the indicating device is used to indicate the initial position of the seed dropping port.

[0016] Furthermore, the seeding assembly is connected to the press wheel assembly. In the traveling direction of the seeder, the seeding assembly and the press wheel assembly are arranged front and rear, and the seeding assembly is located in front of the press wheel assembly.

[0017] Adopting the technical solution provided by the present invention, compared with the existing well-known technologies, the following beneficial effects are achieved:

[0018] For the triangular seeder of the present invention, the ground wheel rotates to transmit power to the fertilizing assembly to make the seeder fertilize. The fertilizer falls from the fertilizer tank into the fertilizer discharging box. The rotating body rotates driven by the transmission assembly, which can prevent the fertilizer from being blocked during the falling process, accelerate the falling of the fertilizer, and improve the fertilizing efficiency. The first fertilizer tank and the second fertilizer tank can buffer the falling fertilizer. At the same time, due to the rotation of the rotating body, the fertilizer can be thrown out due to centrifugal force and will not stay in the first fertilizer tank and the second fertilizer tank for a long time. By adjusting the positions of the first fertilizer tank and the second fertilizer tank in the fertilizer discharging box, the volume ratio of the first fertilizer tank and the second fertilizer tank with different volumes in the fertilizer falling path is changed, so that the buffering amount of the fertilizer is changed. Since the seeder moves forward, the falling amount of the fertilizer also changes with the change of the buffering amount. By controlling the positions of the first fertilizer tank and the second fertilizer tank in the fertilizer discharging box, the fertilizing amount can be controlled.

[0019] Obviously, the elements or features described in the above individual embodiments can be used alone or in combination in other embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In the drawings, the dimensions and ratios do not represent the dimensions and ratios of the actual products. The drawings are merely illustrative, and for clarity, some non-essential elements or features are omitted.

[0021] Figure 1 is the schematic structural diagram (I) of the seeder in the embodiment of the present invention;

[0022] Figure 2 is the schematic structural diagram of the fertilizing assembly in the embodiment of the present invention;

[0023] Figure 3 is the schematic structural diagram of the rotating body in the embodiment of the present invention;

[0024] Figure 4 is the schematic structural diagram (II) of the seeder in the embodiment of the present invention;

[0025] Figure 5 is the schematic structural diagram of the transmission assembly in the embodiment of the present invention;

[0026] Figure 6 It is a schematic structural diagram of the seeding component, the second transmission part, and the third transmission part in the embodiment of the present invention;

[0027] Figure 7 It is a schematic connection structure diagram of the fertilizer application shaft, the adjustment device, and the rotating body in the embodiment of the present invention;

[0028] Figure 8 It is a schematic structural diagram of the fertilizer box in the embodiment of the present invention;

[0029] Figure 9 It is a schematic diagram of the structure and installation position of the power shaft in the embodiment of the present invention;

[0030] Figure 10 It is a schematic structural diagram of the press wheel assembly in the embodiment of the present invention.

[0031] Description of the reference numerals

[0032] 100, frame; 200, fertilizer application component; 210, fertilizer box; 211, fertilizer outlet; 212, material gathering protrusion; 213, fertilizer outlet baffle; 214, box cover; 220, fertilizer outlet box; 230, rotating body; 231, first fertilizer groove; 232, second fertilizer groove; 240, fertilizer application shaft; 250, adjustment device; 251, rotating nut; 252, adjustment handle; 253, wing nut; 254, lock nut; 255, rotating bearing; 260, fertilizer outlet pipe; 270, soil turning device; 280, buckle assembly; 300, seeding component; 310, seeding bracket; 320, seed storage box; 330, seeding tray; 340, indicating device; 400, press wheel assembly; 410, press frame; 420, lifting component; 421, lifting unit; 422, lifting screw; 423, rocker arm; 430, elastic component; 440, soil covering wheel; 450, soil pressing wheel; 460, first connecting arm; 470, second connecting arm; 500, ground wheel; 610, first transmission part; 620, power shaft; 621, intermediate shaft; 622, side shaft; 623, first connecting head; 624, second connecting head; 625, elastic member; 630, seeding shaft; 640, second transmission part; 641, first engaging tooth; 650, third transmission part; 651, second engaging tooth; 660, fourth transmission part; 670, gearbox. Detailed implementation manners

[0033] Next, the present invention will be described in detail with reference to the accompanying drawings. What is described here is only the preferred implementation manner of the present invention. Those skilled in the art can think of other ways to implement the present invention based on the preferred implementation manner, and these other ways also fall within the scope of the present invention.

[0034] Refer to Figures 1-10, this application provides a triangular seeder, which includes a frame 100, a fertilizing component 200, a seeding component 300, a pressing wheel component 400 and a transmission component. The fertilizing component 200 and the transmission component are both installed on the frame 100. The input end of the transmission component is connected to the ground wheel 500, and the output end is connected to the fertilizing component 200 and the seeding component 300, and is used to drive the fertilizing component 200 to apply fertilizer and the seeding component 300 to sow seeds. The fertilizing component 200 and the seeding component 300 work synchronously. The ground wheel 500 rotates when the seeder moves forward, and the rotational power is transmitted to the fertilizing component 200 and the seeding component 300 through the transmission component. Without the need to additionally rely on other driving mechanisms, the two can work synchronously, which is beneficial to streamlining the equipment structure and reducing energy consumption. This seeder can complete the entire process from fertilizing, seeding to covering the soil, and has a high equipment integration level.

[0035] The fertility of the soil varies in different regions. An appropriate amount of fertilization can help crops grow vigorously, while too much or too little fertilization is not conducive to crop growth. Therefore, in some embodiments of this application, a fertilizing component 200 that can adjust the amount of fertilization is designed, such as Figure 1As shown, the fertilizing component 200 includes a fertilizer tank 210. A plurality of fertilizer discharging boxes 220 are arranged at the bottom of the fertilizer tank 210, and the fertilizer discharging boxes 220 communicate with the fertilizer tank 210. Fertilizer is loaded into the fertilizer tank 210 and then falls into the fertilizer discharging boxes 220 under the action of gravity. A rotating body 230 is arranged in the fertilizer discharging box 220, and the rotating body 230 is connected to a transmission component, so that the rotating body 230 rotates around its axis. The rotation of the rotating body can prevent blockage during the falling of the fertilizer, accelerate the falling of the fertilizer, and improve the fertilizing efficiency. The rotating surface of the rotating body 230 is located between the inlet and the outlet of the fertilizer discharging box 220. The rotating surface is provided with a first fertilizer groove 231 and a second fertilizer groove 232, and the volumes of the two are different. The first fertilizer groove 231 and the second fertilizer groove 232 can buffer the falling fertilizer. At the same time, due to the rotation of the rotating body 230, the fertilizer can be thrown out due to centrifugal force and will not stay in the first fertilizer groove 231 and the second fertilizer groove 232 for a long time. The positions of the first fertilizer groove 231 and the second fertilizer groove 232 in the fertilizer discharging box 220 are adjustable. By adjusting the positions of the first fertilizer groove 231 and the second fertilizer groove 232 in the fertilizer discharging box 220, the volume ratio of the first fertilizer groove 231 and the second fertilizer groove 232 with different volumes in the fertilizer falling path is changed, so that the buffering amount of the fertilizer is changed. Since the seeding machine moves forward, the falling amount of the fertilizer also changes with the change of the buffering amount. The fertilizing amount can be controlled by controlling the positions of the first fertilizer groove 231 and the second fertilizer groove 232 in the fertilizer discharging box 220. It can be understood that a fertilizer discharging pipe 260 is connected to the bottom of the fertilizer discharging box 220, and the outlet end of the fertilizer discharging pipe 260 extends towards the ground to a position close to the ground. A soil turning device 270 is installed on the front side of the frame 100 corresponding to the fertilizer discharging pipe 260. The soil turning device 270 is similar to the structure of a plow and is used for turning the soil before fertilizing.

[0036] Specifically, as Figure 2 and Figure 3 shown, a plurality of rotating bodies 230 are connected by a fertilizing shaft 240. The rotating bodies 230 are coaxially arranged with the fertilizing shaft 240. When the fertilizing shaft 240 rotates, the rotating bodies 230 can rotate together with the fertilizing shaft 240. The fertilizing shaft 240 is connected to the output end of the transmission component. The rotating bodies 230 are relatively fixed with the fertilizing shaft 240. When the fertilizing shaft 240 moves, the rotating bodies 230 can move synchronously, so as to change the relative positions of the first fertilizer groove 231 and the second fertilizer groove 232 on the surface of the rotating body 230. As shown in the figure, the volume of the first fertilizer groove 231 is larger than the volume of a single second fertilizer groove 232, and a plurality of second fertilizer grooves 232 are designed and are distributed at intervals around the rotating surface of the rotating body 230.

[0037] Further, one end of the fertilizer application shaft 240 is connected to the fertilizer tank 210, and an adjustment device 250 is provided at the other end. The adjustment device 250 drives the fertilizer application shaft 240 to move linearly along its axial direction. The adjustment device 250 includes a rotating nut 251 and an adjustment handle 252. The rotating nut 251 is connected to the adjustment handle 252. The end of the fertilizer application shaft 240 is provided with a thread and passes through a rotating bearing 255 to be connected to the rotating nut 251. By rotating the rotating nut 251 with the adjustment handle 252, the fertilizer application shaft 240 can be moved along its axial direction, thereby driving the rotating body 230 to move synchronously. It should be noted that the adjustment device 250 can also adopt components such as a hydraulic rod and an electric push rod, as long as it can drive the fertilizer application shaft 240 to move linearly along its axial direction.

[0038] To prevent the fertilizer application shaft 240 from generating linear movement in the axial direction when rotating, resulting in the position of the rotating body 230 shifting, as Figure 7 shown, after adjusting the position of the rotating body 230, the rotating nut 251 is pressed tightly by a limiting structure, so that the rotating nut 251 cannot be rotated, thereby preventing the fertilizer application shaft 240 from generating linear movement in the axial direction, and further avoiding the shifting of the rotating body 230. It should be noted that the limiting structure here is a wing nut 253 and a locking nut 254. The rotating bearing 255 is arranged between the rotating nut 251 and the wing nut 253. The locking nut 254 is arranged outside the adjustment handle 252, and the wing nut 253 is located inside the rotating bearing 255. Before the fertilizer application shaft 240 rotates, the adjustment handle 252 together with the rotating nut 251 are pressed tightly outside the rotating bearing 255 by rotating the locking nut 254, and the inside of the rotating bearing 255 is locked by the wing nut 253, so that the axial direction of the fertilizer application shaft 240 can be kept fixed.

[0039] In some embodiments, in order to be able to adjust the position of a single rotating body 230 relative to the fertilizer outlet box 220 alone without changing the positions of other rotating bodies 230, as Figure 3 shown, buckle assemblies 280 are arranged at the positions of both ends of the fertilizer application shaft 240 corresponding to the length direction of the rotating body 230. The buckle assemblies 280 keep the rotating body 230 relatively fixed to the fertilizer application shaft 240. At this time, the rotating body 230 is sleeved on the fertilizer application shaft 240 movably. The buckle assemblies 280 cooperate with the fertilizer application shaft 240. The two groups of buckle assemblies 280 are respectively clamped on the fertilizer application shaft 240 at both ends of the rotating body 230. When the position of the rotating body 230 needs to be adjusted, the buckle assemblies 280 at both ends are loosened, and the rotating body 230 can be moved.

[0040] It should be noted that the design of the fertilizer tank 210 needs to consider the efficiency of fertilizer feeding. Since the fertilizer feeding basically relies on gravity, some structures need to be designed at the bottom of the fertilizer tank 210 to improve the feeding speed. An outlet 211 is provided at the bottom of the fertilizer tank 210. After the fertilizer enters the tank from the inlet, it accumulates together. In order to make the fertilizer gradually fall to the position of the outlet 211 during the subsequent falling process, in some embodiments, such as Figure 8 shown, a material gathering protrusion 212 is provided at the inner bottom of the fertilizer tank 210. The material gathering protrusion 212 is located between two adjacent outlets 211. The material gathering protrusion 212 presents a slope shape with a higher middle and lower sides, and the vertex position of the higher middle is exactly located between two adjacent outlets 211. The fertilizer at the middle high point position of the material gathering protrusion 212 gathers and slides to the positions of the two adjacent outlets 211 due to gravity, playing a role in gathering the fertilizer and improving the fertilizer discharging efficiency.

[0041] It can be understood that the fertilizer outlet box 220 is arranged corresponding to the position of the outlet 211. In order to further adjust the fertilizer discharge amount, a fertilizer discharge baffle 213 is provided between the fertilizer outlet box 220 and the outlet 211. The fertilizer discharge baffle 213 is movably connected to the fertilizer outlet box 220, and the fertilizer discharge baffle 213 can open, partially open or close the outlet 211. In this embodiment, a plugging gap is provided at the connection between the fertilizer outlet box 220 and the fertilizer tank 210. The fertilizer discharge baffle 210 is slidably connected to the fertilizer outlet box 220 through the plugging gap. The fertilizer discharge baffle 213 can open the outlet 213 to different degrees by plugging, so as to further adjust the fertilizer discharge speed and discharge amount.

[0042] In order to reduce the weight of the fertilizer tank 210, the tank cover 214 is made of a flexible material, specifically a tarpaulin structure. The tank cover 214 is wound on one side of the fertilizer tank 210 through a winding shaft, reducing the space occupied by the seeder and reducing the weight of the tank cover 210 at the same time. Moreover, the tarpaulin structure has the advantages of wear resistance and waterproofness. When the fertilizer tank 210 needs to be covered, the tarpaulin is unwound to the other side of the fertilizer tank 210, and the tarpaulin is fixed to the other side of the fertilizer tank 210 through structures such as hooks. In order to improve the tension of the tarpaulin structure, a counterweight rod is also provided on one side of the tarpaulin. When the tarpaulin is opened to cover the inlet of the fertilizer tank 210, the counterweight rod uses its own gravity to tension the tarpaulin.

[0043] Synchronous fertilization and sowing operations are achieved by the rotation of the ground wheel 500, which requires a suitable transmission design. In some embodiments of the present application, such as Figure 4 and Figure 5As shown, the transmission assembly includes a first transmission member 610, a second transmission member 640, a third transmission member 650, and a fourth transmission member 660. The input end of the first transmission member 610 is connected to the ground wheel 500, and the ground wheel 500 transmits power to the first transmission member 610. The output end of the first transmission member 610 is connected to the power shaft 620, and the first transmission member 610 transmits power to the power shaft 620. The power shaft 620 is connected to the seeding shaft 630 through a gearbox 670, and the power shaft 620 transmits power to the seeding shaft 630 through the gearbox 670 to drive the seeding shaft 630 to rotate. A speed-changing gear is provided inside the gearbox 670, which can cooperate with the gears on the power shaft 620 and the seeding shaft 630 to change the transmission ratio and adjust the fertilizing speed and seeding speed. The seeding shaft 630 is connected to the seeding assembly 300 through the second transmission member 640 and the third transmission member 650, and the seeding shaft 630 transmits power to the seeding assembly 300 to make the seeder sow seeds; the seeding shaft 630 is connected to the fertilizing shaft 240 through the fourth transmission member 660, and the seeding shaft 630 simultaneously transmits power to the fertilizing shaft 240, so that the seeder fertilizes at the same time.

[0044] In actual production and life, it is found that the power shaft 620 rotates through the ground wheels 500 on both sides, and the ground wheels 500 on both sides may reverse when encountering slipping or soil blockage. When one side of the ground wheel 500 reverses, the inconsistent rotation directions of the ground wheels 500 on both sides will cause torsion to the power shaft 620, and then cause the power shaft 620 to be deformed and damaged. In order to avoid damage to the power shaft 620 due to torsion, in some embodiments of the present application, such as Figure 9As shown, the power shaft 620 has a segmented structure, including an intermediate shaft 621 and side shafts 622 located at both ends of the intermediate shaft 621. The intermediate shaft 621 passes through the transmission 670. By segmenting, the length of each section of the power shaft 620 is shortened, reducing the torque and vibration generated during power transmission, thereby reducing the vibration amplitude of the overall system. First connection heads 623 are provided at both ends of the intermediate shaft 621, a second connection head 624 is provided at one end of the side shaft 622, and the other end is connected to the power source. The first connection head 623 and the second connection head 624 are cooperatively connected; the first connection head 623 and the second connection head 624 are locked when the power shaft 620 rotates forward, and power can be transmitted. The first connection head 623 and the second connection head 624 are loosened when the power shaft 620 rotates in reverse. At the same time, the second connection head 624 moves to compress the elastic member 625, cutting off the power transmitted from the ground wheel 500 to the power shaft 200, and the power shaft 200 does not rotate, and thus will not be torsionally damaged due to the reverse rotation of the ground wheel 500. It should be noted that the first connection head 623 is fixedly connected to the intermediate shaft 621. The second connection head 624 is slidably sleeved on the side shaft 622. When the power shaft 620 rotates forward, the second connection head 624 stably contacts the first connection head 623 under the elastic force of the elastic member 625. It should be noted that the elastic member 625 is a spring. The so-called "forward rotation" refers to the rotation direction of the power shaft 620 when the seeder moves forward, and the so-called "reverse rotation" refers to the rotation direction of the power shaft 620 when the seeder moves backward. In addition, the first connection head 623 and the second connection head 624 have the characteristics of positive locking and reverse loosening. Cooperating with the opposite torque generated by the elastic member 625 when the power shaft 620 rotates in reverse, the axial displacement of the power shaft 620 can be reduced, the impact on the power shaft 620 can be alleviated, and the wear can be reduced. Specifically, the elastic member 625 is sleeved on the outer side surface of the side shaft 622, and the elastic member 625 is compressed when the power shaft 620 rotates in reverse.

[0045] Furthermore, in order to facilitate the control of the opening and closing of the seeding assembly 300, in some embodiments of the present application, such as Figure 6As shown in the figure, the input end of the second transmission member 640 is connected to the power shaft 620, and a first engaging tooth 641 is provided at the output end; a second engaging tooth 651 is provided at the input end of the third transmission member 650, and the first engaging tooth 641 and the second engaging tooth 651 are connected in a one-way engaging manner. The structures of the first engaging tooth 641 and the second engaging tooth 651 are similar to those of ratchet teeth. When the seeder advances, the first engaging tooth 641 and the second engaging tooth 651 are locked for transmission. When the seeder retreats, the first engaging tooth 641 and the second engaging tooth 651 are loosened to avoid wasting seeds. A corresponding separating device is provided at the position of the first engaging tooth 641 or the second engaging tooth 651. The separating device can separate the first engaging tooth 641 and the second engaging tooth 651. Since the output end of the third transmission member 650 is connected to the seeding assembly 300, the power of the seeding assembly 300 can be disconnected, so that the seeding work stops. It should be noted that the separating device adopts a simple and durable separating nut and bolt structure. The first engaging tooth 641 is connected to one end of the bolt, and a thread is provided at the other end of the bolt to connect with the separating nut. Rotating the separating nut can move the bolt along its axial direction, thereby driving the first engaging tooth 641 to move, so that the distance between the first engaging tooth 641 and the second engaging tooth 651 can be adjusted, so that the first engaging tooth 641 and the second engaging tooth 642 can be separated or engaged. It can be understood that the separating device can also be provided at the position of the second engaging tooth 651, or both the first engaging tooth 641 and the second engaging tooth 642 are connected to the separating device, and the separation of the first engaging tooth 641 and the second engaging tooth 642 can be realized.

[0046] It should be noted that the first transmission member 610, the second transmission member 640, the third transmission member 650, and the fourth transmission member 660 all adopt a gear and belt structure. The gears are installed on the corresponding shafts such as the power shaft 620, the seeding shaft 630, the fertilizing shaft 240, and the axle of the ground wheel 500, and the gears are connected by belts.

[0047] Specifically, as Figure 1 shown in the figure, the seeding assembly 300 includes a seeding bracket 310. A seed storage box 320 is provided at the top of the seeding bracket 310. A seeding tray 330 is provided at a position of the seeding bracket 310 close to the ground. The seeding tray 330 is communicated with the seed storage box 320 through a seed dropping pipe. The seeds in the seed storage box 320 enter the seeding tray 330 under the action of gravity. The seeding tray 330 is provided with a seed dropping port. The seeding tray 330 is connected to the output end of the third transmission member 650 and is used to drive the seeding tray 330 to rotate. The rotation of the seeding tray 330 makes the seed dropping port contact the soil to complete seeding.

[0048] In order to improve the seeding efficiency and enable reasonable close planting of crops, multiple groups of seeding assemblies 300 are provided, and the initial positions of the seed dropping openings of the seeding trays 330 of adjacent seeding assemblies 300 are different. Since the initial positions of the material dropping openings of adjacent seeding trays 330 are different, when the seeder travels, the seeding trays 330 can drop seeds at different times, and the seeds are sown into the seed furrows in a staggered form, forming a triangular arrangement, which can meet the agronomic requirements of narrow row close planting. In order to clearly determine the initial position of the seed dropping opening of the seeding tray 330, an indicating device 340 is provided at the corresponding position of the seeding assembly 300, and the indicating device 340 is used to indicate the initial position of the seed dropping opening. The indicating device 340 is designed in the shape of an "arrow", and the position indicated by the arrow is the initial position of the seed dropping opening.

[0049] It can be understood that after the seeds fall into the soil, tools are needed to cover the soil on the seeds. The seeding assembly 300 is connected to the pressing wheel assembly 400. In the traveling direction of the seeder, the seeding assembly 300 and the pressing wheel assembly 400 are arranged front and rear, and the seeding assembly 300 is located in front of the pressing wheel assembly 400. The pressing wheel assembly 400 is located behind the seeding assembly 300, and can cover the soil on the sown seeds to promote the rooting and germination of the seeds.

[0050] Specifically, as Figure 1 and Figure 10 shown, in the traveling direction of the seeder, the fertilizing assembly 200, the seeding assembly 300 and the pressing wheel assembly 400 are arranged in sequence from front to back, and the seeder completes the work of fertilizing first, then seeding and finally covering the soil. The ground wheel 500 rotates when the seeder moves forward to drive the fertilizing assembly 200, the seeding assembly 300 and the pressing wheel assembly 400 to work. The ground wheel 500 is the power source for the work of each assembly, and the power is transmitted through the transmission assembly, without the need to introduce an additional power mechanism, and the structure is concise.

[0051] Among them, the rolling wheel assembly 400 includes a rolling frame 410 for connecting with the seeding assembly 300. When the seeder moves forward, it drives the rolling wheel assembly 400 to move forward synchronously. An elevating assembly 420 is installed on the rolling frame 410 and is installed on the rolling frame 410 to tilt up and down at a certain angle relative to the ground. The elevating assembly 420 includes an elevating unit 421, and the elevating assembly 420 drives the elevating unit 421 to move up and down. The rolling wheel assembly 400 further includes a wheel set for gathering the field soil and covering the sown soil on the seeds to ensure that the seeds are properly covered and the soil humidity is maintained. The wheel set is connected to the elevating unit 421, and the elevating unit 421 can move up and down under the drive of the elevating assembly 420, and the wheel set also moves up and down accordingly, so as to adjust the rolling height of the wheel set. The wheel set is connected with an elastic assembly 430 for adjusting the pressure of the wheel set on the soil. The elastic assembly 430 is independently arranged outside the elevating assembly 420. The elastic assembly 430 can adjust the pressure of the wheel set on the soil, and since the elastic assembly 430 is independently arranged from the elevating assembly 420, the elastic assembly 430 and the elevating assembly 420 can work relatively independently, avoiding the change in the compression amount of the elastic assembly 430 when the elevating assembly 420 adjusts the height of the wheel set, making the pressure of the wheel set on the soil more controllable.

[0052] Further, the wheel set includes a soil covering wheel 440 and a soil pressing wheel 450. The soil covering wheel 440 is connected to the elevating unit 421 through a first connecting arm 460. Specifically, one end of the first connecting arm 460 is fixedly connected to the outer side surface of the elevating unit 421, and the other end is rotatably connected to the soil covering wheel 440, and the soil covering wheel 440 can rotate at the end of the first connecting arm 460. The soil pressing wheel 450 is connected to the elevating unit 421 through a second connecting arm 470. Specifically, one end of the second connecting arm 470 is hinged to the outer side surface of the elevating unit 421, and the other end is rotatably connected to the soil pressing wheel 450, and the soil pressing wheel 450 can rotate at the end of the second connecting arm 470. Both the first connecting arm 460 and the second connecting arm 470 are inclined towards the ground direction, so that the soil covering wheel 440 and the soil pressing wheel 450 can contact the ground soil. The first connecting arm 460 is located below the second connecting arm 470, and the elastic assembly 430 is arranged between the first connecting arm 460 and the second connecting arm 470. The elasticity of the elastic assembly 430 can act on both the first connecting arm 460 and the second connecting arm 470 at the same time, so that both the soil covering wheel 440 and the soil pressing wheel 450 can be affected by the elastic force of the elastic assembly 430 to adjust the rolling pressure on the soil.

[0053] It should be noted that the elastic member 430 is a spring structure. The lifting assembly 420 includes a lifting screw 422 and a rocker arm 423. The rocker arm 423 is connected to one end of the lifting screw 422, and the other end of the lifting screw 422 is threadedly connected to the rolling press frame 410. The lifting unit 421 is a lifting arm sleeved outside the lifting screw 422. The rocker arm 423 drives the lifting screw 422 to rotate around the axis to drive the lifting arm to move up and down. After the lifting screw 422 raises the lifting arm to a specified height, the lifting screw 422 is locked by pressing a limit screw against the outer side of the lifting screw 422 to fix the position of the lifting arm.

[0054] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "front", "rear", "left", "right", "upper", "lower", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0055] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", and "connected" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0056] The protection scope of the present invention is only defined by the claims. Benefiting from the teachings of the present invention, those skilled in the art can easily recognize that alternative structures of the structures disclosed in the present invention can be used as feasible alternative embodiments, and the embodiments disclosed in the present invention can be combined to produce new embodiments, which also fall within the scope of the appended claims.

Claims

1. A herringbone seed drill, comprising a frame (100), a fertilizing assembly (200) and a transmission assembly, wherein the fertilizing assembly (200) and the transmission assembly are both mounted on the frame (100), the input end of the transmission assembly is connected to a ground wheel (500), and the output end is connected to the fertilizing assembly (200), and is used to drive the fertilizing assembly (200) to fertilize; characterized in that: The fertilizing assembly (200) comprises a fertilizer box (210), a plurality of fertilizer dispensing boxes (220) are arranged at the bottom of the fertilizer box (210), the fertilizer dispensing boxes (220) are communicated with the fertilizer box (210), a rotating body (230) is arranged inside the fertilizer dispensing box (220), the rotating body (230) is connected to a transmission assembly so that the rotating body (230) rotates around its axial direction; a rotating surface of the rotating body (230) is located between an inlet and an outlet of the fertilizer dispensing box (220), a first fertilizer trough (231) and a second fertilizer trough (232) are arranged on the rotating surface, and the volumes of the first fertilizer trough (231) and the second fertilizer trough (232) are different, and the positions of the first fertilizer trough (231) and the second fertilizer trough (232) in the fertilizer dispensing box (220) are adjustable.

2. A herringbone seeder according to claim 1, characterized in that: The plurality of rotating bodies (230) are connected via a fertilizing shaft (240); the rotating body (230) and the fertilizing shaft (240) are coaxially arranged; the fertilizing shaft (240) is connected to an output end of a transmission component; and the rotating body (230) and the fertilizing shaft (240) remain relatively fixed.

3. A herringbone seed drill according to claim 2, characterized in that: One end of the fertilizer shaft (240) is connected to the fertilizer box (210), and the other end is provided with an adjustment device (250), and the adjustment device (250) drives the fertilizer shaft (240) to move linearly along its axial direction.

4. The herringbone seeder according to claim 2, characterized in that: It also comprises a sowing assembly (300), wherein the output end of the transmission assembly is connected to the sowing assembly (300) and is used to drive the sowing assembly (300) to sow; and the fertilizing assembly (200) and the sowing assembly (300) work synchronously.

5. The herringbone seeder according to claim 4, characterized in that: The transmission assembly comprises a first transmission member (610), a second transmission member (640), a third transmission member (650) and a fourth transmission member (660); the input end of the first transmission member (610) is connected to the ground wheel (500); the output end of the first transmission member (610) is connected to the power shaft (620); the power shaft (620) is connected to the sowing shaft (630) through a gearbox (670); the sowing shaft (630) is connected to the sowing assembly (300) through the second transmission member (640) and the third transmission member (650); the sowing shaft (630) is connected to the fertilization shaft (240) through the fourth transmission member (660).

6. The herringbone seeder according to claim 5, characterized in that: The input end of the second transmission member (640) is connected to the power shaft (620), and the output end is provided with a first engaging tooth (641); the input end of the third transmission member (650) is provided with a second engaging tooth (651), and the first engaging tooth (641) and the second engaging tooth (651) are unidirectionally engaged and connected; the output end of the third transmission member (650) is connected to the sowing assembly (300).

7. The herringbone seed drill according to claim 6, characterized in that: The sowing assembly (300) comprises a sowing support (310), a seed storage box (320) is arranged on the top of the sowing support (310), a sowing tray (330) is arranged at a position close to the ground of the sowing support (310), and the sowing tray (330) is connected to the seed storage box (320); the sowing tray (330) is provided with a seed drop port, and the sowing tray (330) is connected to the output end of the third transmission member (650) for driving the sowing tray (330) to rotate.

8. The herringbone seed drill according to claim 7, characterized in that: The sowing assemblies (300) are provided in a plurality of groups, and the initial positions of the seeding openings of the sowing discs (330) of adjacent sowing assemblies (300) are different.

9. The herringbone seeder according to claim 8, characterized in that: An indicating device (340) is provided at a corresponding position of the sowing assembly (300), and the indicating device (340) is used to indicate the initial position of the seed drop opening.

10. The herringbone seeder according to claim 4, characterized in that: The sowing assembly (300) is connected to the pressing wheel assembly (400). In the travel direction of the seeder, the sowing assembly (300) and the pressing wheel assembly (400) are arranged front and back, and the sowing assembly (300) is located in front of the pressing wheel assembly (400).

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