Adjustable agricultural seeder

Abstract

The invention relates to the technical field of agricultural machinery, in particular to an adjustable agricultural seeder which comprises a rack, a seed bin, a suspension, a land wheel and a driving rod, a driving gear is arranged at one end of the driving rod, a tensioning gear, a driven rod, a driven gear and a bevel gear are arranged on the rack, a seeding disc, a separation rib and an inclined partition plate are arranged in the seed bin, and a worm is rotationally arranged on the outer side of the seed bin. A seed separating mechanism is arranged on the outer side of the seed bin. The land wheel makes contact with the ground to drive the driving rod to rotate, the driving rod drives the seeding disc to rotate and sow through the driven rod, the seed bin is arranged to be a large-capacity integrated stock bin, the interior of the seed bin is divided into a plurality of seed containing bins through the separation ribs, and in the seeding process, the driving rod drives the seed distribution mechanism through the driven rod and the worm to repeatedly distribute seeds, so that the seeding efficiency is improved. According to the invention, the seed quantity in each seed storage bin is consistent, the problem of insufficient seed quantity is solved, and the problem of different seed quantity of each seed storage bin is avoided, so that the seeding speed is increased, and the seeding quality is greatly improved at the same time.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural machinery, in particular to an adjustable agricultural seeder. Background Art

[0002] An agricultural seeder is a piece of mechanical equipment used in agricultural production. It is mainly used to sow seeds into the soil according to a certain row spacing, plant spacing and depth. Compared with traditional manual sowing, agricultural seeders can greatly increase the sowing speed and save labor costs. The seeder can also accurately control the sowing depth, row spacing and plant spacing to ensure that the seeds are evenly distributed, which is conducive to crop growth. Different types of seeders can adapt to different soil conditions and crop requirements to meet the needs of various agricultural production.

[0003] In order to increase the sowing speed, existing agricultural seeders are usually equipped with multiple seed bins for multi-ridge sowing. However, due to the limitations of the seeder itself, the seed bins are generally independently set and have limited capacity. Before sowing, the seed bins must be quantified and added one by one. This may result in insufficient seeds and the need to stop the machine for replenishment. Enlarging the seed bins makes it inconvenient to take out the remaining seeds.

[0004] Therefore, it is urgent to improve the adjustable agricultural seeder device to solve the above-mentioned problems. Summary of the invention

[0005] The purpose of the present invention is to provide an adjustable agricultural seeder, in which a ground wheel drives a driving rod to rotate through contact with the ground, and the driving rod drives a sowing disc to rotate and sow through a driven rod, and a seed bin is configured as a large-capacity integrated bin, and dividing ribs divide the interior of the seed bin into a plurality of seed bins. During the sowing process, the driving rod repeatedly distributes seeds through a driven rod and a worm gear transmission seed distribution mechanism, so that the seed quantity in each seed bin is consistent, which not only solves the problem of insufficient seed quantity, but also avoids the problem of different seed quantities in each seed bin, thereby improving the sowing speed and also greatly improving the sowing quality.

[0006] In order to achieve the above object, the main technical solutions adopted by the present invention include: An adjustable agricultural seeder comprises a frame and a seed bin fixedly mounted on the upper side of the frame, a suspension is rotatably provided on a side of the frame away from the seed bin, a ground wheel is rotatably provided on an end of the suspension away from the frame, a driving rod is rotatably provided inside the frame, and the ground wheel and the driving rod are connected by a toothed chain; A driving gear is fixedly installed at one end of the driving rod, a tensioning gear is slidably arranged on one side of the frame close to the driving gear, a driven rod is rotatably arranged on the frame corresponding to the position of the seed bin, a driven gear is fixedly installed on the driven rod, the driving gear, the tensioning gear and the driven gear are connected by a chain, a plurality of evenly distributed seeding discs are rotatably arranged inside the seed bin, a plurality of evenly distributed bevel gears are fixedly arranged on the driven rod, and the bevel gears correspond to the input end of the seeding disc; A plurality of evenly distributed dividing ribs are fixedly installed inside the seed bin, and the dividing ribs are arranged between the two seeding plates. An inclined partition is fixedly installed inside the seed bin, and the inclined partition is arranged above the seeding plate. A worm is rotatably arranged on the outer side of the seed bin, and the worm is connected to the driven gear through a tooth chain. A plurality of evenly distributed seed sorting mechanisms are fixedly installed on the outer side of the seed bin, and the number of the seed sorting mechanisms is equal to the seeding plates, and the seed sorting mechanisms penetrate the seed bin and the inclined partition and extend to the outer side of the inclined partition.

[0007] Preferably, the seed separation mechanism includes a fixed sleeve fixedly mounted on the seed bin and a worm wheel rotatably arranged on the outside of the fixed sleeve, the worm wheel is meshed with the worm, a rotating sleeve is rotatably arranged inside the fixed sleeve, an L-shaped shift plate is fixedly mounted on one end of the rotating sleeve away from the worm wheel, and the side surface of the L-shaped shift plate is in contact with the surface of the inclined partition plate.

[0008] Preferably, a driving column is fixedly installed on one side of the worm gear, and the driving column is rotatably arranged inside the rotating sleeve. A sliding groove is provided on the inner side of the fixed sleeve, and a slider is slidably arranged inside the sliding groove. An inclined guide groove is provided on the rotating sleeve, and an annular guide groove is provided on the surface of the driving column. The bottom end of the slider passes through the inclined guide groove and extends to the inside of the annular guide groove, and the annular guide grooves inside two adjacent seed separation mechanisms are centrally symmetrically distributed.

[0009] Preferably, a plurality of evenly distributed sowing funnels are fixedly mounted on the bottom side of the seed bin, a plurality of evenly distributed ridging plowshares are fixedly mounted on the bottom end of the frame, a seed guide tube is fixedly connected to the bottom end of the sowing funnel, and one end of the seed guide tube away from the sowing funnel extends to the interior of the ridging plowshare.

[0010] Preferably, a plurality of evenly distributed transition bins are fixedly mounted on the frame, a fertilizer spreading disc is rotatably provided inside the transition bin, a fertilizer spreading rod is rotatably provided on the frame corresponding to the position of the fertilizer spreading disc, the fertilizer spreading rod penetrates a plurality of the fertilizer spreading discs and extends to the outside of the frame, and the fertilizer spreading rod is connected to the driving gear, the tensioning gear and the driven gear through a sprocket.

[0011] Preferably, a fertilizer bin is fixedly installed on the upper end of the transition bin, a fertilizer hopper is fixedly installed on one side of the transition bin, the number of the fertilizer hoppers is equal to the number of the fertilizer plates, a fertilizer guide pipe is fixedly installed on the bottom end of the fertilizer hopper, and the fertilizer guide pipe extends from one end away from the fertilizer hopper to the interior of the ridging plowshare.

[0012] Preferably, a plurality of evenly distributed seed unloading ports are opened on the bottom side of the seed bin, and a plurality of evenly distributed seed unloading funnels are fixedly installed on the bottom of the seed bin, the seed unloading funnels correspond one-to-one to the sowing plates, and the interior of the seed bin is connected with the interior of the seed unloading funnels through the seed unloading ports.

[0013] Preferably, a baffle is rotatably provided at the upper end of the seed unloading funnel via a hinge, and two symmetrically distributed curved rods are rotatably provided inside the seed unloading funnel, a top rod is rotatably connected to the curved rod, and the upper end of the top rod is hinged to the bottom end of the baffle.

[0014] Preferably, a seed unloading gear is fixedly mounted on one end of the curved rod, and the seed unloading gear is arranged on the outside of the seed unloading funnel. A linear rack is slidably arranged on the outside of the seed unloading funnel, and both sides of the linear rack are respectively meshed with one side of the two seed unloading gears.

[0015] Preferably, a handle is fixedly mounted on the linear rack, a gravity clamping rod is rotatably provided on the bottom end of the handle, a guide sleeve is fixedly mounted on the bottom end of the linear rack of the seed unloading funnel, and the gravity clamping rod corresponds to the guide sleeve.

[0016] The present invention has at least the following beneficial effects: The ground wheel of the present invention drives the driving rod to rotate through contact with the ground, and the driving rod drives the seeding disc to rotate and sow through the driven rod. The seed bin is configured as a large-capacity integrated bin, and the dividing ribs divide the interior of the seed bin into a plurality of seed bins. During the sowing process, the driving rod repeatedly distributes the seeds through the driven rod and the worm gear transmission seeding mechanism, so that the seed quantity in each seed bin is consistent, which not only solves the problem of insufficient seed quantity, but also avoids the problem of different seed quantities in each seed bin. Therefore, the sowing speed is increased and the sowing quality is greatly improved.

[0017] During the rotation of the worm gear of the worm drive of the present invention, the annular guide groove transmission slider slides back and forth in the slide groove. While the slider slides, it pushes the rotating sleeve to rotate reciprocatingly through the guidance of the inclined guide groove, thereby enabling the L-shaped lever to achieve a reciprocating shifting effect, so that the excess seeds in the seed placement bin can be pushed into the adjacent seed placement bin.

[0018] The annular guide grooves inside two adjacent seed separation mechanisms of the present invention are centrally symmetrically distributed, so that the two adjacent rotating sleeves can rotate in opposite directions. Therefore, the two adjacent L-shaped levers can push the excess seeds above the seed placement bin to the top of the middle dividing rib. Under the action of gravity, the seeds are redistributed into the two placement bins by the dividing rib, thereby making the seed amounts of several placement bins the same, and cooperating with the seeding tray can make the seeding more uniform.

[0019] The invention comprises a driven rod and a fertilizer rod connected to a driving rod of a frame, and the driven rod and the fertilizer rod can ensure that the seeding disc and the fertilizer disc operate synchronously, so that seeding and fertilizing are carried out synchronously, the operation efficiency is improved, the reasonable coordination of fertilizer and seed is ensured, and good conditions are created for the growth of crops.

[0020] During the operation of the seeder of the present invention, the linear rack is located at the bottom. At this time, the two curved rods are in a horizontal state, and the top rod presses against the baffle to block the seed unloading port to prevent leakage of the seed bin. When the seeds need to be unloaded, the linear rack is pulled upward, the linear rack drives the seed unloading gear to rotate, and the curved rod drives the top rod to pull the baffle downward, the seed unloading port opens, and excess seeds flow out, which greatly improves the convenience of seed unloading.

[0021] The handle of the present invention is convenient for operating the linear rack. When the handle is pulled upward, the gravity clamping rod rotates downward under the action of gravity. During the rotation, its bottom end abuts against the upper end of the guide sleeve, so that the linear rack is limited, which is convenient for synchronous cleaning of the opposite seed bin. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings: Figure 1 The elevation structure diagram provided by the present invention; Figure 2 A rear elevation view provided for the present invention; Figure 3 An exploded diagram of the seed separation mechanism provided by the present invention; Figure 4 A schematic diagram of the rotation of the L-shaped dial provided by the present invention; Figure 5 A schematic diagram of the rotation of the transmission rod provided by the present invention; Figure 6 The elevation view of the seed bin structure provided by the present invention; Figure 7 A cross-sectional structural diagram of a seed bin provided by the present invention; Figure 8 It is a schematic diagram of the explosion of the transition bin and the fertilizer spreading plate provided by the present invention; Fig. 9 A schematic diagram of the working of the seed drill provided by the present invention; Fig.10 A schematic diagram of an explosion of a seed unloading hopper provided by the present invention.

[0023] In the figure, 1, frame; 2, seed bin; 3, suspension; 4, ground wheel; 5, driving rod; 6, driving gear; 7, tensioning gear; 8, driven rod; 9, driven gear; 10, seeding plate; 11, bevel gear; 12, seeding funnel; 13, ridging plowshare; 14, seed guide pipe; 15, transition bin; 16, fertilizer disc; 17, fertilizer rod; 18, fertilizer bin; 19, fertilizer funnel; 20, fertilizer guide pipe; 21, separation rib; 22, inclined partition; 23, worm; 24, Seeding mechanism; 241, fixed sleeve; 2410, slide groove; 242, worm gear; 243, rotating sleeve; 2430, inclined guide groove; 244, L-shaped dial plate; 245, driving column; 2450, annular guide groove; 246, sliding block; 26, seed discharge port; 27, seed discharge funnel; 271, baffle; 272, curved rod; 273, push rod; 274, seed discharge gear; 275, linear rack; 276, handle; 277, gravity clamping rod; 278, guide sleeve. DETAILED DESCRIPTION

[0024] The following will describe the implementation methods of the present application in detail with the help of accompanying drawings and examples, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0025] like Figure 1 - Fig.10 As shown, the adjustable agricultural seeder provided in this embodiment includes a frame 1 and a seed bin 2 fixedly mounted on the upper side of the frame 1, a suspension 3 is rotatably provided on one side of the frame 1 away from the seed bin 2, a ground wheel 4 is rotatably provided on one end of the suspension 3 away from the frame 1, a driving rod 5 is rotatably provided inside the frame 1, the ground wheel 4 and the driving rod 5 are connected by a toothed chain, the suspension 3 is used to make the ground wheel 4 fit the ground to prevent the ground wheel 4 from running empty and affecting the sowing quality, and the ground wheel 4 is driven by the toothed chain to drive the driving rod 5 to rotate, which is convenient for the operation of the seeder; A driving gear 6 is fixedly installed on one end of the driving rod 5, and a tensioning gear 7 is slidably provided on one side of the frame 1 close to the driving gear 6. A driven rod 8 is rotatably provided on the frame 1 corresponding to the position of the seed bin 2, and a driven gear 9 is fixedly installed on the driven rod 8. The driving gear 6, the tensioning gear 7 and the driven gear 9 are connected by a chain. A number of evenly distributed seeding discs 10 are rotatably provided inside the seed bin 2, and a number of evenly distributed bevel gears 11 are fixedly provided on the driven rod 8, and the bevel gear 11 corresponds to the input end of the seeding disc 10. During the rotation of the ground wheel 4, the driving rod 5 drives the driven gear 9 to rotate through the driving gear 6 and the chain, thereby rotating the driven rod 8, and the driven rod 8 is used to drive the seeding disc 10 through the bevel gear 11 for sowing; A plurality of evenly distributed dividing ribs 21 are fixedly installed inside the seed bin 2, and the dividing ribs 21 are arranged between the two seeding trays 10. An inclined partition 22 is fixedly installed inside the seed bin 2, and the inclined partition 22 does not contact the seeding tray 10 and the bottom of the seed bin 2. The inclined partition 22 is used to block the seeding tray 10 to prevent the seeds from being stuck, and at the same time, it is convenient for the seeds to fall to the bottom of the seeding tray 10. The inclined partition 22 is arranged above the seeding tray 10. A worm 23 is rotatably arranged on the outer side of the seed bin 2, and the worm 23 is connected to the driven gear 9 through a tooth chain. A plurality of evenly distributed seed sorting mechanisms 24 are fixedly installed on the outer side of the seed bin 2, and the number of the seed sorting mechanisms 24 is equal to that of the seeding tray 10. The seed sorting mechanism 24 passes through the seed bin 2 and the inclined partition 22 and extends to the outer side of the inclined partition 22. During the rotation of the driven rod 8, the seed sorting mechanism 24 is driven by the tooth chain to work, and the seed sorting mechanism 24 sorts the seeds. Among them, the ground wheel 4 drives the driving rod 5 to rotate through contact with the ground, and the driving rod 5 drives the sowing plate 10 to rotate and sow through the driven rod 8. The seed bin 2 is configured as a large-capacity integrated silo, and the dividing rib 21 divides the interior of the seed bin 2 into multiple seed bins. During the sowing process, the driving rod 5 drives the seed sorting mechanism 24 through the driven rod 8 and the worm 23 to repeatedly distribute the seeds, so that the seed amount in each seed bin is consistent, which not only solves the problem of insufficient seed amount, but also avoids the problem of different seed amounts in each seed bin. Therefore, the sowing speed is improved while the sowing quality is greatly improved.

[0026] Further, such as Figure 1 - Fig.10 As shown, the seed separation mechanism 24 includes a fixed sleeve 241 fixedly mounted on the seed bin 2 and a worm wheel 242 rotatably arranged on the outside of the fixed sleeve 241, the worm wheel 242 is meshed with the worm 23, a rotating sleeve 243 is rotatably arranged inside the fixed sleeve 241, an L-shaped dial plate 244 is fixedly mounted on one end of the rotating sleeve 243 away from the worm wheel 242, the side surface of the L-shaped dial plate 244 contacts the surface of the inclined partition 22, and a driving column 245 is fixedly mounted on one side of the worm wheel 242. 245 is rotatably arranged inside the rotating sleeve 243, a slide groove 2410 is provided on the inner side of the fixed sleeve 241, a slider 246 is slidably arranged inside the slide groove 2410, an oblique guide groove 2430 is provided on the rotating sleeve 243, an annular guide groove 2450 is provided on the surface of the driving column 245, the bottom end of the slider 246 penetrates the oblique guide groove 2430 and extends to the inside of the annular guide groove 2450, and the annular guide grooves 2450 inside two adjacent seed separation mechanisms 24 are centrally symmetrically distributed; In the process of the worm 23 driving the worm wheel 242 to rotate, the annular guide groove 2450 drives the slider 246 to slide back and forth in the slide groove 2410. While the slider 246 slides, it pushes the rotating sleeve 243 to reciprocate through the guidance of the oblique guide groove 2430, thereby making the L-shaped dial plate 244 achieve a reciprocating dialing effect, so that the excess seeds in the seed placement bin can be pushed into the adjacent seed placement bin; Specifically, Figure 3 and Figure 4 As shown, the annular guide grooves 2450 inside two adjacent seed separation mechanisms 24 are centrally symmetrically distributed, so that the two adjacent rotating sleeves 243 can rotate in opposite directions. Therefore, the two adjacent L-shaped shift plates 244 can push the excess seeds above the seed storage bin to the top of the middle dividing rib 21. Under the action of gravity, the seeds are redistributed into the two storage bins by the dividing rib 21, thereby making the seed quantities of several storage bins the same, and cooperating with the seeding plate 10 to make the sowing more uniform.

[0027] Furthermore, if Figure 1 - Fig.10 As shown, a plurality of evenly distributed sowing funnels 12 are fixedly installed on the bottom side of the seed bin 2, a plurality of evenly distributed ridging plowshares 13 are fixedly installed on the bottom end of the frame 1, a seed guide tube 14 is fixedly connected to the bottom end of the sowing funnel 12, and one end of the seed guide tube 14 away from the sowing funnel 12 extends to the inside of the ridging plowshare 13; Among them, first, the main function of the sowing funnel 12 is to temporarily store the seeds from the seed bin 2 and transport the seeds to the seed guide tube 14 in a relatively stable manner. Several evenly distributed sowing funnels 12 can ensure that the seed guide tubes 14 at different positions can be supplied with seeds in time, ensuring the uniformity of sowing; 2. Ridge plowshare 13 Ridge opening: Ridges are opened on the land to create a suitable space for seed sowing. Ridge opening can improve the aeration and drainage of the soil, which is beneficial to seed germination and crop growth. Guiding sowing position: The ridge-opening plowshare 13 provides a clear position for the seed guide tube 14 to place the seeds, ensuring that the seeds fall accurately into the opened furrows, thereby improving the sowing accuracy; 3. Seed guide tube 14 Seed transportation: The seed guide tube 14 connects the sowing funnel 12 and the ridging plowshare 13, and smoothly guides the seeds from the sowing funnel 12 to the inside of the ridging plowshare 13, that is, the furrow, to ensure that the seeds will not be scattered or deviate from the sowing position during the transportation process; Controlling the sowing direction and depth: Since one end of the seed guide tube 14 extends into the interior of the ridging plowshare 13, the sowing direction and depth of the seeds can be controlled to a certain extent, so that the seeds can be sown into the soil at a relatively consistent depth, which is conducive to uniform seed germination and improves the consistency of crop growth; At the same time, if Figure 1 - Fig.10 As shown, a plurality of evenly distributed transition bins 15 are fixedly mounted on the frame 1, a fertilizer disc 16 is rotatably arranged inside the transition bin 15, a fertilizer rod 17 is rotatably arranged on the frame 1 corresponding to the position of the fertilizer disc 16, the fertilizer rod 17 penetrates the plurality of fertilizer discs 16 and extends to the outside of the frame 1, and the fertilizer rod 17 is connected to the driving gear 6, the tensioning gear 7 and the driven gear 9 through a sprocket.

[0028] Further, such as Figure 1 - Fig.10 As shown, a fertilizer bin 18 is fixedly installed at the upper end of the transition bin 15, and a fertilizer hopper 19 is fixedly installed on one side of the transition bin 15. The number of the fertilizer hoppers 19 is equal to the number of the fertilizer discs 16. A fertilizer guide pipe 20 is fixedly installed at the bottom end of the fertilizer hopper 19, and one end of the fertilizer guide pipe 20 away from the fertilizer hopper 19 extends to the inside of the ridging plowshare 13; Among them, 1. Transition warehouse 15 Fertilizer storage: The transition bin 15 provides temporary storage space for fertilizers to ensure that there is enough fertilizer to meet the fertilization needs during the sowing process; Uniform distribution: Several evenly distributed transition bins 15 can distribute fertilizer to different positions more evenly, ensuring the uniformity of fertilization in the entire sowing area.

[0029] 2. Fertilizer tray 16 Quantitative fertilizer placement: The fertilizer disc 16 rotates in the transition bin 15, and the amount of fertilizer placed can be controlled in a relatively accurate manner to avoid excessive or insufficient fertilization; Even spreading: Fertilizer is spread evenly into the soil by rotation, providing good nutrient conditions for seed growth; 3. Fertilizer rod 17 Transmission function: the fertilizer rod 17 penetrates several fertilizer discs 16 and is connected to the driving gear 6, the tensioning gear 7 and the driven gear 9 through the sprocket, so as to realize the transmission of power; so that the fertilizer disc 16 can rotate with the movement of the seeder to put fertilizer; Specifically, the driven rod 8 and the fertilizer rod 17 are connected to the driving rod 5 of the frame 1. The driven rod 8 and the fertilizer rod 17 can ensure that the seeding disc 10 and the fertilizer disc 16 operate synchronously, so that sowing and fertilizing are carried out synchronously, improve working efficiency, ensure the reasonable coordination of fertilizers and seeds, and create good conditions for crop growth.

[0030] To solve the problem of excess seed residue: like Figure 1 - Fig.10As shown, a plurality of uniformly distributed seed discharge ports 26 are provided on the bottom side of the seed bin 2, and a plurality of uniformly distributed seed discharge funnels 27 are fixedly installed on the bottom of the seed bin 2. The seed discharge funnels 27 correspond to the sowing trays 10 one by one. The interior of the seed bin 2 is connected to the interior of the seed discharge funnel 27 through the seed discharge port 26. The bottoms of the plurality of seed discharge funnels 27 can be connected together in a bag through a conduit to facilitate synchronous seed discharge. The upper end of the seed discharge funnel 27 is provided with a baffle 271 which is rotated by a hinge to discharge seeds. The funnel 27 is internally rotatably provided with two symmetrically distributed curved rods 272, and a top rod 273 is rotatably connected to the curved rod 272. The upper end of the top rod 273 is hinged to the bottom end of the baffle 271, and a seed unloading gear 274 is fixedly installed at one end of the curved rod 272. The seed unloading gear 274 is arranged on the outside of the seed unloading funnel 27. A linear rack 275 is slidably provided on the outside of the seed unloading funnel 27, and the two sides of the linear rack 275 are respectively meshed with one side of the two seed unloading gears 274; Among them, the baffle 271 is used to block the seed unloading port 26. During the operation of the seeder, the linear rack 275 is located at the bottom. At this time, the two curved rods 272 are in a horizontal state, and the top rod 273 supports the baffle 271 to block the seed unloading port 26 to prevent leakage of the seed bin 2. When the seeds need to be unloaded, the linear rack 275 is pulled upward, and the linear rack 275 drives the seed unloading gear 274 to rotate. The curved rod 272 drives the top rod 273 to pull the baffle 271 downward, and the seed unloading port 26 is opened. The excess seeds will flow out, which greatly improves the convenience of seed unloading.

[0031] In addition, if Figure 1 - Fig.10 As shown, a handle 276 is fixedly installed on the linear rack 275, and a gravity clamping rod 277 is rotatably provided at the bottom end of the handle 276. A guide sleeve 278 is fixedly installed at the bottom end of the linear rack 275 of the seed unloading funnel 27. The gravity clamping rod 277 corresponds to the guide sleeve 278. The maximum rotation angle of the gravity clamping rod 277 is 100 degrees. The handle 276 facilitates the operation of the linear rack 275. When the handle 276 is pulled upward, the gravity clamping rod 277 rotates downward under the action of gravity. During the rotation, the bottom end thereof abuts against the upper end of the guide sleeve 278, so that the linear rack 275 is limited, which is convenient for synchronous cleaning of the opposing seed bins.

[0032] like Figure 1 - Figure 3 As shown, the principle of an adjustable agricultural seeder provided in this embodiment is as follows: When in use, the frame 1 is installed on the four-wheel vehicle, the fertilizer is placed inside the fertilizer bin, and the seed bin is filled with seeds. The suspension 3 is used to make the ground wheel 4 fit the ground to prevent the ground wheel 4 from running empty and affecting the sowing quality. The ground wheel 4 is driven by the toothed chain to drive the driving rod 5 to rotate, which is convenient for the operation of the seeder. During the rotation of the ground wheel 4, the driving rod 5 is driven by the active gear 6 and the chain to drive the driven gear 9 to rotate, thereby rotating the driven rod 8. The driven rod 8 is used to drive the sowing disc 10 through the bevel gear 11 for sowing. The dividing rib 21 divides the interior of the seed bin 2 into multiple seed bins. During the sowing process, the driving rod 5 is driven by the driven rod 8 and the worm 23 to drive the seed dividing mechanism 24 to repeatedly divide the seeds, so that the seed amount in each seed bin is consistent. When unloading, the linear rack 275 is pulled upward by the handle, and the linear rack 275 drives the unloading gear 274 to rotate. The curved rod 272 drives the top rod 273 to pull the baffle 271 downward, and the unloading port 26 is opened, and the excess seeds will flow out.

[0033] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve technical problems within a certain error range and basically achieve technical effects.

[0034] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such product or system. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the product or system including the elements.

[0035] The above description shows and describes several preferred embodiments of the present invention, but as mentioned above, it should be understood that the present invention is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the invention concept described herein through the above teachings or the technology or knowledge of the relevant field. Changes and variations made by those skilled in the art do not depart from the spirit and scope of the present invention, and should be within the scope of protection of the claims attached to the present invention.

Claims

1. An adjustable agricultural seeder, comprising a frame (1) and a seed bin (2) fixedly mounted on the upper side of the frame (1), characterized in that: A suspension (3) is rotatably provided on one side of the frame (1) away from the seed bin (2), a ground wheel (4) is rotatably provided on one end of the suspension (3) away from the frame (1), a driving rod (5) is rotatably provided inside the frame (1), and the ground wheel (4) and the driving rod (5) are connected via a toothed chain; A driving gear (6) is fixedly mounted on one end of the driving rod (5); a tensioning gear (7) is slidably mounted on a side of the frame (1) close to the driving gear (6); a driven rod (8) is rotatably mounted on the frame (1) corresponding to the position of the seed bin (2); a driven gear (9) is fixedly mounted on the driven rod (8); the driving gear (6), the tensioning gear (7) and the driven gear (9) are connected via a chain; a plurality of evenly distributed seeding discs (10) are rotatably mounted inside the seed bin (2); a plurality of evenly distributed bevel gears (11) are fixedly mounted on the driven rod (8); and the bevel gears (11) correspond to the input end of the seeding disc (10); A plurality of evenly distributed dividing ribs (21) are fixedly installed inside the seed bin (2), the dividing ribs (21) being arranged between the two seed discs (10), an oblique partition (22) is fixedly installed inside the seed bin (2), the oblique partition (22) being arranged above the seed disc (10), a worm (23) is rotatably arranged outside the seed bin (2), the worm (23) being connected to the driven gear (9) via a toothed chain, a plurality of evenly distributed seed sorting mechanisms (24) are fixedly installed outside the seed bin (2), the number of the seed sorting mechanisms (24) being equal to the number of the seed discs (10), the seed sorting mechanisms (24) penetrating the seed bin (2) and the oblique partition (22) and extending to the outside of the oblique partition (22).

2. The adjustable agricultural seeder according to claim 1, characterized in that: The seed separation mechanism (24) comprises a fixed sleeve (241) fixedly mounted on the seed bin (2) and a worm wheel (242) rotatably arranged outside the fixed sleeve (241); the worm wheel (242) is meshed with the worm (23); a rotating sleeve (243) is rotatably arranged inside the fixed sleeve (241); an L-shaped shifting plate (244) is fixedly mounted on one end of the rotating sleeve (243) away from the worm wheel (242); and a side surface of the L-shaped shifting plate (244) contacts a surface of the inclined partition plate (22).

3. The adjustable agricultural seeder according to claim 2, characterized in that: A driving column (245) is fixedly mounted on one side of the worm gear (242), and the driving column (245) is rotatably arranged inside the rotating sleeve (243). A sliding groove (2410) is provided on the inner side of the fixed sleeve (241), and a sliding block (246) is slidably arranged inside the sliding groove (2410). An oblique guide groove (2430) is provided on the rotating sleeve (243), and an annular guide groove (2450) is provided on the surface of the driving column (245). The bottom end of the sliding block (246) passes through the oblique guide groove (2430) and extends into the inside of the annular guide groove (2450). The annular guide grooves (2450) inside two adjacent seed separation mechanisms (24) are centrally symmetrically distributed.

4. The adjustable agricultural seeder according to claim 1, characterized in that: A plurality of evenly distributed sowing funnels (12) are fixedly mounted on the bottom side of the seed bin (2), a plurality of evenly distributed ridging plowshares (13) are fixedly mounted on the bottom end of the frame (1), a seed guide tube (14) is fixedly connected to the bottom end of the sowing funnel (12), and an end of the seed guide tube (14) away from the sowing funnel (12) extends into the interior of the ridging plowshare (13).

5. The adjustable agricultural seeder according to claim 4, characterized in that: A plurality of evenly distributed transition bins (15) are fixedly mounted on the frame (1); a fertilizer spreading disc (16) is rotatably arranged inside the transition bin (15); a fertilizer spreading rod (17) is rotatably arranged on the frame (1) corresponding to the position of the fertilizer spreading disc (16); the fertilizer spreading rod (17) penetrates the plurality of fertilizer spreading discs (16) and extends to the outside of the frame (1); the fertilizer spreading rod (17) is connected to the driving gear (6), the tensioning gear (7) and the driven gear (9) via a sprocket.

6. The adjustable agricultural seeder according to claim 5, characterized in that: A fertilizer bin (18) is fixedly mounted on the upper end of the transition bin (15), a fertilizer hopper (19) is fixedly mounted on one side of the transition bin (15), the number of the fertilizer hoppers (19) being equal to the number of the fertilizer discs (16), and a fertilizer guide pipe (20) is fixedly mounted on the bottom end of the fertilizer hopper (19), and the fertilizer guide pipe (20) extends from one end of the fertilizer hopper (19) away from the fertilizer hopper to the interior of the ridging plowshare (13).

7. The adjustable agricultural seeder according to claim 1, characterized in that: The bottom side of the seed bin (2) is provided with a plurality of evenly distributed seed discharge ports (26), and the bottom of the seed bin (2) is fixedly provided with a plurality of evenly distributed seed discharge funnels (27), the seed discharge funnels (27) corresponding to the sowing trays (10) one by one, and the interior of the seed bin (2) is connected to the interior of the seed discharge funnels (27) through the seed discharge ports (26).

8. The adjustable agricultural seeder according to claim 7, characterized in that: The upper end of the seed unloading funnel (27) is rotatably provided with a baffle (271) via a hinge, and the interior of the seed unloading funnel (27) is rotatably provided with two symmetrically distributed curved rods (272), and a top rod (273) is rotatably connected to the curved rod (272), and the upper end of the top rod (273) is hinged to the bottom end of the baffle (271).

9. The adjustable agricultural seeder according to claim 8, characterized in that: A seed unloading gear (274) is fixedly mounted on one end of the curved rod (272), and the seed unloading gear (274) is arranged on the outside of the seed unloading funnel (27). A linear rack (275) is slidably arranged on the outside of the seed unloading funnel (27), and two sides of the linear rack (275) are respectively meshed with one side of the two seed unloading gears (274).

10. The adjustable agricultural seeder according to claim 9, characterized in that: A handle (276) is fixedly mounted on the linear rack (275), a gravity clamping rod (277) is rotatably mounted at the bottom end of the handle (276), a guide sleeve (278) is fixedly mounted on the bottom end of the linear rack (275) of the seed unloading funnel (27), and the gravity clamping rod (277) corresponds to the guide sleeve (278).

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