Seeding device for agricultural machinery and use method thereof

Abstract

The invention discloses a seeding device for agricultural machinery and a use method thereof in the technical field of agricultural machine.The seeding device comprises symmetrical mechanical arms, a seeding assembly is fixedly connected between the middles of the mechanical arms, a transverse rod is fixedly connected between the middles of the mechanical arms, a ditching assembly is fixedly connected to the transverse rod, and a transverse shaft is rotationally connected between the bottom ends of the mechanical arms; two ends of the transverse shaft respectively penetrate through the corresponding mechanical arms and are fixedly connected with action wheels, the center of the transverse shaft is fixedly sleeved with an action gear, the action gear is meshed with a toothed chain, and the other end of the toothed chain is meshed with the seeding assembly; the sowing assembly is used for sowing different crop seeds through rotation of the transverse shaft, and the ditching assembly is used for ditching and earthing on ridges and in furrows. Through the two seeding structures and the ditching and soil covering structures with different heights, ditching, seeding and soil covering on ridges and in furrows can be achieved at the same time, it is avoided that when furrowing is conducted on the ridges, soil falls off to affect the furrow seeding depth, and the seeding efficiency of gap interplanting is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of agricultural machinery, and specifically relates to a seeding device for agricultural machinery and its usage method. Background Art

[0002] Modern seeding devices generally adopt precise seed metering technologies, such as external fluted roller seeders, centrifugal seeders, pneumatic seeders, etc. These seeders can achieve precise metering and uniform discharge of seeds according to different crop types and seeding requirements. By mechanical power to tow the robotic arm, the looseness of seeding can be adjusted to adapt to high-speed operation.

[0003] However, existing seeding devices often target flat cultivated land or cultivated land with evenly arranged furrows. In cultivated land with irregular shapes or significant height differences, the seeding effect is often unsatisfactory. Moreover, to expand the cultivated area and increase yields, some growers in certain areas choose to intercrop different crops in the furrows between ridges. If ordinary seeding devices are used, only after seeding on the ridges can the furrows be reseeded again. This is not only cumbersome and labor-intensive, but may also cause mutual interference during repeated seeding, resulting in the seeding depth of the crop seeds not reaching the expected value, reducing the yield of intercropping and the quality of agricultural production.

[0004] Therefore, it is necessary to propose a seeding device for agricultural machinery and its usage method that can simultaneously sow different crop seeds on ridges and in furrows, and can cover the soil that falls into the furrows during furrow opening on the ridges onto the seeds sown in the furrows, reducing the adverse impact of soil dropping on the seeding depth in the furrows. Summary of the Invention

[0005] To solve the above problems, the purpose of the present invention is to provide a seeding device for agricultural machinery and its usage method. Through two groups of seeding structures distributed on both sides and furrow opening and soil covering structures at different heights, it can simultaneously open furrows on ridges and in furrows, sow seeds of different crops and cover the soil, and avoid the soil dropping during furrow opening on the ridges from affecting the seeding depth in the furrows, promoting the seeding efficiency of intercropping, and increasing the crop yield per unit area and production efficiency.

[0006] To achieve the above purpose, the technical solution of the present invention is as follows: A seeding device for agricultural machinery includes symmetric robotic arms. A cross arm is fixedly connected between the tops of the robotic arms. A seeding assembly is fixedly connected between the middles of the robotic arms. A cross bar is fixedly connected between the middles of the robotic arms. A furrow opening assembly is fixedly connected to the cross bar. A horizontal axis is rotatably connected between the bottoms of the robotic arms. Both ends of the horizontal axis pass through the corresponding robotic arms and are fixedly connected with driving wheels respectively. A driving gear is fixedly sleeved at the center of the horizontal axis. A toothed chain is meshed with the driving gear, and the other end of the toothed chain is meshed with the seeding assembly;

[0007] The sowing assembly is used to sow different crop seeds by rotating around the horizontal axis, and the ditching assembly is used to dig ditches and cover the soil in the ridges and furrows.

[0008] The principle of the basic solution is as follows: By the synergistic effect of the robotic arm, cross arm, sowing assembly, ditching assembly and transmission system, the synchronous operation of sowing and ditching and soil covering in the ridges and furrows is achieved. By adjusting the height and angle of the ditching assembly, it can adapt to soil conditions and sowing requirements of different heights, ensuring that the seeds are evenly distributed and at an appropriate soil depth.

[0009] The beneficial effects of the basic solution are as follows: 1. By simultaneously carrying out sowing operations in the ridges and furrows, the present invention effectively shortens the sowing cycle and improves the overall sowing efficiency. The precise design of the sowing assembly and the optimized cooperation of the transmission system ensure the even distribution of seeds and an appropriate sowing depth, thereby increasing the germination rate of seeds and the consistency of crop growth.

[0010] 2. By realizing intercropping at intervals with this device and sowing two kinds of crop seeds simultaneously, multiple crops can be planted in the same field, making full use of land resources and increasing the types and quantities of crops per unit area. The ecological complementary effect between different crops helps to improve soil fertility and biodiversity, further promoting the increase of crop yields.

[0011] 3. The sowing device of the present invention can easily adapt to different types of soil conditions and crop requirements by adjusting the height and angle of the sowing assembly and the ditching assembly, improving the versatility and practicality of the device. The flexible design of the transmission system enables precise adjustment of key parameters such as sowing speed and sowing amount according to actual needs, enhancing the flexibility and controllability of the device.

[0012] 4. The structure of the device is reasonably designed and easy to operate, reducing the skill requirements and labor intensity of operators. At the same time, it also reduces the possibility of failures and the difficulty of maintenance.

[0013] Furthermore, the sowing assembly includes symmetric seed storage hoppers respectively fixedly connected to the upper part of the robotic arm. At the bottom of the side of the seed storage hopper away from the robotic arm, there is a seed distribution box connected. Inside the seed distribution box, there is a rotatably connected seed distribution disk. A cross bar passes through the seed distribution box and the seed distribution disk and is fixedly connected to the seed distribution box. The cross bar and the seed distribution disk are coaxially rotatably connected. A seed distribution gear is rotatably sleeved on the cross bar and the seed distribution gear is located between the two side seed distribution boxes. Both sides of the seed distribution gear pass through the seed distribution box and are fixedly connected to the seed distribution disk. The seed distribution gear meshes with a toothed chain. At the bottom of the seed distribution box, there is a seed distribution pipe connected. The seed distribution pipes extend downward and are connected to sowing pipes. The sowing pipes extend radially to both sides of the seed distribution box.

[0014] The beneficial effects of the basic solution are as follows: Through the coordinated action of the seed storage hopper, seed sorting box, seed sorting tray, and seeding tube, the present invention achieves efficient and uniform seeding of seeds. This design not only improves the seeding speed but also ensures the uniformity of seed distribution, thereby enhancing the growth consistency and yield of crops.

[0015] Furthermore, on the outer peripheries of the two-sided seed sorting trays, there are respectively seed sorting grooves of different sizes for sorting and spreading different crop seeds.

[0016] The beneficial effects of the basic solution are as follows: 1. Through the ingenious design of the seed sorting tray and the seed sorting grooves, precise sorting and quantitative seeding of seeds are achieved. This function not only improves the seeding accuracy and the consistency of crop growth but also helps reduce seed waste and improve land utilization efficiency.

[0017] 2. The design with different sizes of the seed sorting grooves enables the device to adapt to different types and sizes of seeds, and different types of crop seeds can be sown simultaneously, improving the seeding efficiency and versatility of the device.

[0018] Furthermore, the ditching assembly includes ditching gears symmetrically and rotatably sleeved on the cross bar. On both radial sides of the ditching gears, there are fixedly connected ditching arms, and at the ends of the ditching arms, there are fixedly connected ditching shovels. On the cross bar, there are also symmetrically sleeved covering gears. On both radial sides of the covering gears, there are fixedly connected covering arms, and at the ends of the covering arms, there are rotatably connected covering wheels. At both ends of the cross bar, there are fixedly connected steering motors, and the output shafts of the steering motors all extend towards the seed sorting box and are rotatably connected to the side walls of the seed sorting box. Near the ditching gears and the covering gears, there are fixedly sleeved steering gears on the output shafts of the steering motors, and the steering gears are all meshed with the ditching gears. Between the steering gears and the covering gears, there are engaged steering gears.

[0019] The beneficial effects of the basic solution are as follows: 1. Through the transmission system of the steering motor and the steering gears, the rotation directions of the ditching gears and the covering gears can be precisely adjusted according to actual needs. This function enables the device to flexibly adapt to the seeding work of different crops during intercropping at intervals, without having to sow in a single direction, improving the efficiency and flexibility of the seeding operation.

[0020] 2. The optimized cooperation between the steering motor and the transmission system ensures the synchronization and high efficiency of the ditching and covering operations. At the same time, the inclined design of the covering wheels reduces the friction and resistance between the soil and the moving gears, improving the operation efficiency and stability. The structural design of the ditching assembly is reasonable and easy to disassemble and clean, reducing the maintenance cost.

[0021] Furthermore, the lengths of the ditching arms and the covering arms on one side of the seed sorting gear are greater than those on the other side.

[0022] The beneficial effects of the basic solution are as follows: The different lengths of the ditching shovel and the soil covering wheel ensure that the sown seeds are all at an appropriate soil depth, which is conducive to the germination and growth of the seeds. At the same time, the asymmetric design and the inclined design of the soil covering wheel further improve the quality and stability of the seeding and soil covering operations.

[0023] Furthermore, the side walls of the soil covering wheel close to the driving gear are all inclined towards the driving gear.

[0024] The beneficial effects of the basic solution are as follows: The inclined design of the soil covering wheel enables the device to easily complete the soil covering operation. This design not only improves the operation efficiency but also ensures the growth environment of the seeds and the soil quality.

[0025] Furthermore, both ends of the seeding pipe are fixedly connected to the bottom side walls of the corresponding ditching arms.

[0026] The beneficial effects of the basic solution are as follows: 1. The direct connection between the seeding pipe and the ditching arm ensures that the seeds can accurately fall into the newly opened seed furrows, reducing the scattering and waste of the seeds, avoiding the influence of the soil falling back into the furrows on the seeding depth, and improving the seeding accuracy and efficiency. At the same time, the stable connection structure of the seeding pipe also helps to reduce the uneven seeding caused by mechanical vibration, making the seeding operation more accurate and efficient.

[0027] 2. By fixedly connecting the seeding pipe to the ditching arm, the overall structure of the seeding device is more compact, reducing unnecessary space occupation. This design not only improves the portability and flexibility of the device but also helps to reduce the production cost and maintenance cost.

[0028] 3. The firm connection between the seeding pipe and the ditching arm enables the device to maintain high stability and durability when operating in a complex and changeable soil environment. This design detail helps to extend the service life of the device, reduce the downtime caused by mechanical failures, and improve the overall operation efficiency.

[0029] Furthermore, the inner bottom wall of the seed storage hopper is higher on the side close to the robotic arm than on the side close to the seed distribution box.

[0030] The beneficial effects of the basic solution are as follows: 1. The inclined inner bottom wall design enables the seeds to flow into the seed distribution box more smoothly and quickly, thus improving the overall efficiency of the seeding operation. This design detail helps to shorten the seeding cycle, reduce the labor cost, and improve the agricultural production efficiency.

[0031] 2. By optimizing the design of the seed storage hopper, the seeds can maintain a uniform flow rate and speed when flowing into the seed distribution box, which helps to improve the uniformity and accuracy of seeding. This design detail is of great significance for improving the crop yield and quality, especially in the cultivation of crops that require precise control of the seed spacing and quantity.

[0032] 3. The inclined inner bottom wall design reduces the retention and accumulation of seeds in the seed storage hopper, and reduces the downtime and maintenance costs caused by blockages. This design detail helps to improve the reliability and durability of the seeding device and extend its service life.

[0033] Furthermore, a number of support plates are fixedly connected to the outer periphery of the driving wheels.

[0034] The beneficial effects of the basic solution are as follows: 1. The addition of the support plates increases the contact area between the driving wheels and the ground, thereby improving the grip of the driving wheels on soft or slippery soil. This design helps the seeding device to maintain stability on complex terrains, reduces operation interruptions caused by slipping or getting stuck in the vehicle, and improves the continuity and efficiency of the seeding operation.

[0035] 2. The design of the support plates not only enhances the grip but also improves the passability of the seeding device on uneven terrains. When the seeding device needs to move in the fields or on complex terrains, the support plates can help the driving wheels better cross obstacles such as small mounds, stones or grass roots, thus reducing the operation difficulties caused by terrain limitations.

[0036] 3. The design of the support plates also helps to optimize the seeding operation effect. Since the support plates can increase the friction between the driving wheels and the ground, the seeding device can maintain a more stable driving trajectory during the seeding process, thereby reducing the uneven seeding or missed seeding phenomena caused by unstable driving.

[0037] A method for using a seeding device for agricultural machinery, characterized by including the following steps:

[0038] Step 1. Prepare for seeding: Pretreat the seeds to be sown on the ridges and in the furrows in advance, store the seeds for the ridges in the seed storage hopper on one side of the short furrow-opening arm, and store the seeds for the furrows in the seed storage hopper on one side of the long furrow-opening arm;

[0039] Step 2. Seed: Use manpower or machinery to drive the seeding device to move into the field ridges, and control the steering motor to lower the furrow-opening shovel in the forward direction and the soil covering wheel in the opposite direction of the forward direction. During the movement, the rotation of the cross shaft drives the seed sorting disc through the toothed chain to sort different seeds and sow them under the furrow-opening shovel, and use the soil covering wheel to cover the soil. The seeding speed is synchronized with the traveling speed;

[0040] Step 3. Reciprocating seeding: After sowing one field ridge, without changing the direction of the seeding device, control the furrow-opening shovel and the soil covering wheel in the other direction to be lowered, so that the seeding device moves backward to sow the field ridge on one side. Description of the Drawings

[0041] Figure 1 It is an axonometric view of the seeding device for agricultural machinery in the embodiment of the present invention.

[0042] Figure 2 This is a side view of the seeding device for agricultural machinery in the embodiment of the present invention.

[0043] Figure 3 This is a top view of the seeding device for agricultural machinery in the embodiment of the present invention.

[0044] The reference numerals in the accompanying drawings of the specification include: 1, robotic arm; 2, horizontal shaft; 3, cross bar; 4, driving gear; 5, toothed chain; 6, seed sorting gear; 7, steering motor; 8, driving wheel; 9, support plate; 10, seed storage hopper; 11, steering gear; 12, seeding pipe; 13, seed sorting pipe; 14, seed sorting box; 15, ditching gear; 16, steering gear; 17, soil covering gear; 18, cross arm; 19, soil covering wheel; 20, soil covering arm; 21, ditching arm; 22, ditching shovel. Detailed Description of the Invention

[0045] The following is a further detailed description through specific embodiments:

[0046] Embodiment 1

[0047] Basically as shown in the attached Figure 1 , Figure 2 and Figure 3 shown: A seeding device for agricultural machinery includes symmetric robotic arms 1. A cross arm 18 is welded between the tops of the robotic arms 1. A seeding assembly is welded between the middle parts of the robotic arms 1. A cross bar 3 is welded between the middle parts of the robotic arms 1. A ditching assembly is welded on the cross bar 3. A horizontal shaft 2 is rotatably connected by bearings between the bottoms of the robotic arms 1. Both ends of the horizontal shaft 2 pass through the corresponding robotic arms 1 and are welded with driving wheels 8 respectively. A driving gear 4 is welded in the center of the horizontal shaft 2. A toothed chain 5 is meshed with the driving gear 4. The other end of the toothed chain 5 is meshed with the seeding assembly. A plurality of support plates 9 are welded on the outer peripheries of the driving wheels 8.

[0048] The seeding assembly is used to sow different crop seeds by the rotation of the horizontal shaft 2. The ditching assembly is used to dig ditches and cover soil in the ridges and furrows. The seeding assembly includes symmetric seed storage hoppers 10 respectively welded on the upper parts of the robotic arms 1. The bottoms of the sides of the seed storage hoppers 10 away from the robotic arms 1 are both communicated with seed sorting boxes 14. Seed sorting disks are rotatably connected inside the seed sorting boxes 14. The cross bar 3 passes through the seed sorting boxes 14 and the seed sorting disks and is welded with the seed sorting boxes 14. The cross bar 3 and the seed sorting disks are both coaxially connected by bearings. A seed sorting gear 6 is sleeved on the cross bar 3 by a bearing and the seed sorting gear 6 is located between the two seed sorting boxes 14 on both sides. Both sides of the seed sorting gear 6 pass through the seed sorting boxes 14 and are welded with the seed sorting disks. The seed sorting gear 6 is meshed with the toothed chain 5. The bottoms of the seed sorting boxes 14 are both communicated with seed sorting pipes 13. The seed sorting pipes 13 extend downward and are both communicated with seeding pipes 12. The seeding pipes 12 extend radially to both sides of the seed sorting boxes 14. Different-sized seed sorting grooves are respectively formed on the outer peripheries of the two seed sorting disks for sorting and sowing different crop seeds.

[0049] The ditching assembly includes ditching gears 15 symmetrically sleeved on the cross bar 3 through bearings. Ditching arms 21 are welded to both radial sides of the ditching gears 15. Ditching shovels 22 are welded to the ends of the ditching arms 21. The cross bar 3 also has covering gears 17 symmetrically sleeved through bearings. Covering arms 20 are welded to both radial sides of the covering gears 17. Covering wheels 19 are rotatably connected to the ends of the covering arms 20 through pins. Variable-direction motors 7 are welded to both ends of the cross bar 3. The output shafts of the variable-direction motors 7 extend towards the seed distribution box 14 and are rotatably connected to the side walls of the seed distribution box 14 through pins. Variable-direction gears 11 are welded to the output shafts of the variable-direction motors 7 near the ditching gears 15 and the covering gears 17. The variable-direction gears 11 are all meshed with the ditching gears 15. Steering gears 16 are meshed between the variable-direction gears 11 and the covering gears 17. The lengths of the ditching arms 21 and the covering arms 20 on one side of the seed distribution gear 6 are greater than those on the other side. The side walls of the covering wheels 19 close to the driving gear 4 are inclined towards the driving gear 4.

[0050] Both ends of the sowing pipe 12 are bonded to the bottom side walls of the corresponding ditching arms 21. The inner bottom wall of the seed storage hopper 10 is higher on the side close to the robotic arm 1 than on the side close to the seed distribution box 14.

[0051] The specific implementation process is as follows: To improve the arable land production efficiency, farmers will adopt the mode of intercropping at intervals on the ridges and in the furrows. However, they need to sow the unit arable land twice, which not only consumes manpower and material resources, but also easily causes the soil on the ridges to fall and change the depth of the furrows, affecting the accuracy of the sowing depth in the furrows.

[0052] As Figure 1 shown, before sowing, prepare the seeds of the two crops to be intercropped, store the two kinds of seeds separately in the two-sided seed storage hoppers 10. The seeds of the furrow crops are stored in the seed storage hopper 10 on the side where the ditching arms 21 and the covering arms 20 are longer. Then place the sowing device between the ridges. The driving wheels 8 run in the furrows separated by several rows. The support pieces 9 can enhance the movement ability of the driving wheels 8 and prevent them from getting stuck in the soil. Control the variable-direction motor 7 to lower the ditching arm 21 on the preset forward direction side. At this time, the variable-direction motor 7 rotates, the variable-direction gear 11 on the output shaft of the variable-direction motor 7 rotates, driving the meshed ditching gear 15 to rotate and lower the corresponding ditching arm 21. At the same time, the rotation of the variable-direction gear 11 also makes the meshed steering gear 16 rotate. After the steering gear 16 turns, it drives the covering gear 17 to rotate in the opposite direction to the ditching gear 15, lowering the covering arm 20 in the opposite direction to the sowing device. At this time, the ditching shovel 22 on the longer ditching arm 21 on one side and the covering wheel 19 on the covering arm 20 contact the bottom of the furrow, while the ditching shovel 22 on the shorter ditching arm 21 on one side and the covering wheel 19 on the covering arm 20 contact the ridge. After preparation, use manpower or machinery to pull or push the sowing device to start sowing.

[0053] During the movement of the moving wheel, the horizontal shaft 2 rotates relative to the robotic arm 1, driving the moving gear to rotate. Through the transmission of the tooth chain 5, the minute-division gear 6 rotates. The minute-division gear 6 drives the minute-division discs on both sides to rotate in their respective minute-division boxes 14. The minute-division grooves on the minute-division discs will hold an appropriate amount of crop seeds at the connection between their respective minute-division boxes 14 and the seed storage hopper 10, and through rotation, the seeds will be dropped into the minute-division tube 13 connected below the minute-division. The seeds in the minute-division tube 13 will fall to the middle of the seeding tube 12, thus slowing down the dropping speed. However, at this time, one side of the seeding tube 12 is lifted under the influence of the ditching arm 21, causing the seeds to only roll towards the end where the ditching arm 21 is lowered. Eventually, the seeds will fall into the newly opened seed furrows behind their respective ditching shovels 22, completing seeding and soil covering. The synchronization of the seeding speed and the traveling speed during this process ensures the uniformity of seeding, reduces the use of other machinery, lowers production costs, and increases the promotion value.

[0054] Since the ditching arm 21 and the soil covering arm 20 for ditching and soil covering in the ridge furrow are longer than the ditching arm 21 and the soil covering arm 20 on the other side in both the vertical and horizontal directions, there is a sequence for ditching and soil covering. First, ditching and seeding are carried out in the ridge furrow, and then ditching and seeding are carried out on the ridge. At this time, the soil on the ridge may fall into the ridge furrow due to the influence of ditching. By ditching and seeding in the ridge furrow first, the seeding depth can be prevented from being affected by the soil falling from the ridge. And by covering the soil on the ridge first and then covering the soil in the ridge furrow later, the soil falling from the ridge can be used to cover the seeds in the ridge furrow, thus making full use of the height difference between the ridge furrow and the ridge and reducing the impact on seeding accuracy during the seeding process.

[0055] After seeding an entire ridge, this seeding device does not need to turn. Instead, it controls the direction-changing motor 7 to rotate, and again lowers the ditching arm 21 in the direction opposite to the previous traveling direction, lowers the soil covering arm 20 in the same direction, changes the operation mode of the seeding device from pushing to pulling, or from pulling to pushing, and directly travels in the opposite direction to carry out seeding on one side of the ridge and in the ridge furrow. In addition, since the ditching arm 21 in the reverse direction is lowered while the ditching arm 21 used just now is lifted, the seeding tube 12 on the ditching arm 21 is also lifted and lowered. At this time, when seeding again, the seeds can only fall into the end where the seeding tube 12 is lowered, avoiding unnecessary waste of seeds and improving the seeding efficiency and production value of the intercropping mode with gaps.

[0056] Embodiment 2

[0057] The difference from the above embodiment is that, as shown in the attached Figure 1 、 Figure 2 : A method for using a seeding device for agricultural machinery includes the following steps:

[0058] Step 1: Prepare for seeding: Pretreat the seeds that need to be sown on the ridge and in the ridge furrow in advance. Store the seeds for the ridge in the seed storage hopper 10 on one side of the short ditching arm 21, and store the seeds for the ridge furrow in the seed storage hopper 10 on one side of the long ditching arm 21;

[0059] Step 2. Sowing: Drive the sowing device to move into the ridge by manpower or machinery, and control the steering motor 7 to lower the furrow opener 22 in the forward direction and the soil covering wheel 19 in the direction opposite to the forward direction. During the movement, the rotation of the horizontal shaft 2 drives the seed sorting disk through the tooth chain 5 to sort different seeds and sow them under the furrow opener 22, and use the soil covering wheel 19 to cover the soil. The sowing speed is synchronized with the traveling speed.

[0060] Step 3. Reciprocating sowing: After sowing one ridge, without changing the direction of the sowing device, control the furrow opener 22 and the soil covering wheel 19 in the other direction to be lowered, so that the sowing device moves backward to sow the ridge on one side.

[0061] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0062] The above are only embodiments of the present invention. Common knowledge such as the specific structure and characteristics in the solution is not described in detail here. Those of ordinary skill in the art know all the common technical knowledge in the technical field to which the invention belongs before the application date or the priority date, can know all the existing technologies in this field, and have the ability to apply the conventional experimental means before this date. Those of ordinary skill in the art can, under the inspiration given in this application, combine their own abilities to improve and implement this solution. Some typical well-known structures or well-known methods should not become an obstacle for those of ordinary skill in the art to implement this application. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicality of the patent. The protection scope required by this application should be based on the content of its claims, and the specific implementation manners described in the specification can be used to interpret the content of the claims.

Claims

1. A sowing device for agricultural machinery, comprising a symmetrical mechanical arm (1), characterized in that: A cross arm (18) is fixedly connected between the top ends of the mechanical arms (1), a sowing assembly is fixedly connected between the middle parts of the mechanical arms (1), a cross bar (3) is fixedly connected between the middle parts of the mechanical arms (1), a furrowing assembly is fixedly connected to the cross bar (3), a cross shaft (2) is rotatably connected between the bottom ends of the mechanical arms (1), two ends of the cross shaft (2) respectively pass through the corresponding mechanical arms (1) and are fixedly connected to action wheels (8), an action gear (4) is fixedly sleeved at the center of the cross shaft (2), a tooth chain (5) is meshed on the action gear (4), and the other end of the tooth chain (5) is meshed with the sowing assembly; The sowing component is used to sow different crop seeds by rotating the transverse axis (2), and the furrowing component is used to dig furrows on the ridges and in the furrows and cover the soil.

2. The sowing device for agricultural machinery according to claim 1, characterized in that: The sowing assembly comprises seed storage buckets (10) which are respectively fixedly connected to the upper part of the mechanical arm (1) and are symmetrical. The bottom of the seed storage bucket (10) on one side away from the mechanical arm (1) is connected to a seed sorting box (14). The seed sorting box (14) is rotatably connected to a seed sorting disk. The cross bar (3) passes through the seed sorting box (14) and the seed sorting disk. The cross bar (3) and the seed sorting box (14) are fixedly connected. The cross bar (3) and the seed sorting disk are coaxially rotatably connected. A seed sorting gear (6) is rotatably sleeved and is located between seed sorting boxes (14) on both sides. Both sides of the seed sorting gear (6) pass through the seed sorting box (14) and are fixedly connected to the seed sorting disk. The seed sorting gear (6) is meshed with a toothed chain (5). The bottom of the seed sorting box (14) is connected to a seed sorting tube (13). The seed sorting tube (13) extends downward and is connected to a sowing tube (12). The sowing tube (12) extends radially to both sides of the seed sorting box (14).

3. The sowing device for agricultural machinery according to claim 2, characterized in that: The outer circumference of the seed separation plates on both sides are respectively provided with seed separation grooves of different sizes for sorting and sowing different crop seeds.

4. The sowing device for agricultural machinery according to claim 1, characterized in that: The trenching assembly comprises a trenching gear (15) symmetrically rotatably sleeved on a cross bar (3), trenching arms (21) are fixedly connected to both radial sides of the trenching gear (15), and trenching shovels (22) are fixedly connected to the ends of the trenching arms (21), and soil covering gears (17) are symmetrically sleeved on the cross bar (3), soil covering arms (20) are fixedly connected to both radial sides of the soil covering gear (17), and soil covering wheels (19) are rotatably connected to the ends of the soil covering arms (20), and the cross bar (3) Both ends are fixedly connected with a direction-changing motor (7), the output shaft of the direction-changing motor (7) extends toward the seed box (14) and is rotatably connected to the side wall of the seed box (14), the output shaft of the direction-changing motor (7) is fixedly sleeved with a direction-changing gear (11) near the furrowing gear (15) and the soil covering gear (17), the direction-changing gear (11) is meshed with the furrowing gear (15), and a steering gear (16) is meshed between the direction-changing gear (11) and the soil covering gear (17).

5. The sowing device for agricultural machinery according to claim 4, characterized in that: The length of the furrowing arm (21) and the soil covering arm (20) on one side of the seed separation gear (6) is greater than the length of the furrowing arm (21) and the soil covering arm (20) on the other side.

6. The sowing device for agricultural machinery according to claim 4, characterized in that: The side walls of the covering wheel (19) close to the moving gear (4) are all inclined toward the moving gear (4).

7. The sowing device for agricultural machinery according to claim 2, characterized in that: Both ends of the sowing tube (12) are fixedly connected to the bottom side walls of the corresponding furrowing arms (21).

8. The sowing device for agricultural machinery according to claim 2, characterized in that: The side of the inner bottom wall of the seed storage bucket (10) close to the mechanical arm (1) is higher than the side close to the seed separation box (14).

9. The seeding device for agricultural machinery according to claim 1, characterized in that: A plurality of support plates (9) are fixedly connected to the outer periphery of the action wheel (8).

10. A method for using a seeding device for agricultural machinery, characterized in that: The following steps are involved: Step 1, preparing for sowing: preparing the seeds to be sown on the ridges and in the furrows in advance, storing the seeds on the ridges in a seed storage bucket (10) on one side of the short furrowing arm (21), and storing the seeds in the furrows in a seed storage bucket (10) on one side of the long furrowing arm (21); Step 2, sowing: using manpower or machinery to drive the sowing device to move to the field ridge, and controlling the direction-changing motor (7) to lower the furrowing shovel (22) in the forward direction and the covering wheel (19) in the opposite direction of the forward direction. During the moving process, the rotation of the horizontal axis (2) drives the seed sorting disc to sort different seeds and sow them under the furrowing shovel (22), and the covering wheel (19) is used to cover the soil. The sowing speed is synchronized with the moving speed; Step 3, reciprocating sowing: After sowing one ridge, there is no need to change the direction of the sowing device, but the furrowing shovel (22) and the covering wheel (19) in the other direction are controlled to be lowered, so that the sowing device moves in the opposite direction to sow the ridge on one side.

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