Wheat fertilizing and sowing all-in-one machine capable of preventing seed burning

Abstract

The utility model relates to a seed burning prevention wheat fertilizing and sowing all-in-one machine which is used for avoiding the seed burning phenomenon caused by concentrated distribution of fertilizer and seeds and comprises a walking rack as well as a first ditching mechanism, a fertilizing mechanism, a first soil covering mechanism, a sowing mechanism and a second soil covering mechanism which are sequentially arranged in the reverse direction of the walking direction of the walking rack, the plurality of first ditching mechanisms are arranged at intervals in the width direction of the walking rack, each first ditching mechanism comprises a seeding plowshare connected with the walking rack and fertilizing plowshares arranged on the two sides of the seeding plowshare, and the seeding plowshares and the adjacent fertilizing plowshares are arranged in an M shape; the fertilizing mechanism comprises a plurality of fertilizing pipes distributed on the moving track of the fertilizing plowshare; the seeding mechanism comprises a plurality of seeding pipes distributed on the moving track of the seeding plowshare; the first soil covering mechanisms and the second soil covering mechanisms are distributed on the moving track of the first ditching mechanism, and the soil covering depth of the first soil covering mechanisms is smaller than that of the second soil covering mechanisms.

Description

Technical Field

[0001] This application belongs to the field of crop sowing technology, and specifically relates to an integrated machine for fertilizing and sowing wheat to prevent seed burn. Background Technology

[0002] Currently, wheat fertilization and sowing are typically carried out using a fertilizer seeder in row sowing. The seeder opens furrows in well-tilled land, then evenly distributes fertilizer and wheat seeds in a specific ratio within the furrows, followed by covering with soil and compacting. Even distribution of fertilizer and wheat seeds is crucial for ensuring sufficient nutrition for the wheat, guaranteeing successful germination and a high yield of high-quality wheat.

[0003] However, in the existing technology, the conventional layout of wheat seeders used for simultaneous fertilization and sowing is that the tillage and furrowing mechanism is in front, followed by the fertilization mechanism, the sowing mechanism is located after the fertilization mechanism, and the soil covering and vibration compaction mechanism is located at the end. The fertilization mechanism controls the amount of fertilizer dispensed by rotating fertilizer rollers and delivers fertilizer through fertilizer pipes along the sowing furrows opened by the tillage and furrowing mechanism. The sowing mechanism then evenly sows the seeds into the sowing furrows, and the soil covering and vibration compaction mechanism pushes the loose soil on both sides of the sowing furrows into the sowing furrows to uniformly cover and compact the fertilizer and seeds. Although the aforementioned wheat seeding machine integrates functions such as ditching, fertilization, sowing, and soil compaction, and can perform basic fertilization and sowing operations, it still has some shortcomings. For example, the fertilization and sowing mechanisms have limited control over the amount of fertilizer applied, the amount of seeds sown, and the positional distribution of fertilizer and wheat seeds. This can easily lead to concentrated distribution of fertilizer particles, resulting in uneven distribution of fertilizer around the wheat seeds and causing seed nutrient imbalance. Furthermore, uneven seed distribution can cause some seeds to clump together, competing for nutrients and causing some seeds to become malnourished. Alternatively, some seeds may be too close to the fertilizer and at roughly the same level, leading to overly concentrated and direct fertilizer action on the seeds, resulting in seed burn and reduced germination rate. Summary of the Invention

[0004] Based on the aforementioned technical needs, this application provides an integrated wheat fertilization and sowing machine to prevent seed burning, which solves the problem that seed burning easily occurs when fertilization and sowing are carried out simultaneously in the prior art, resulting in a decrease in seed germination rate.

[0005] To achieve the above objectives, the technical solution of this application is as follows:

[0006] A wheat fertilizer-sowing integrated machine for preventing seed burn includes a walking frame and a first furrowing mechanism, a fertilizing mechanism, a first covering mechanism, a sowing mechanism, and a second covering mechanism, sequentially arranged on the walking frame in the opposite direction of its walking direction. A plurality of the first furrowing mechanisms are arranged in a spaced array along the width direction of the walking frame. Each first furrowing mechanism includes a sowing plow connected to the walking frame and fertilizing plows symmetrically arranged on both sides of the sowing plow, with the sowing plows and adjacent fertilizing plows forming an M-shape. The fertilizing mechanism includes a plurality of fertilizing tubes, one end of which extends along the direction of gravity and is distributed along the movement trajectory of the fertilizing plow. The sowing mechanism includes a plurality of sowing tubes, one end of which extends along the direction of gravity and is distributed along the movement trajectory of the sowing plow. A plurality of the first covering mechanisms and a plurality of the second covering mechanisms are distributed along the movement trajectory of the first furrowing mechanisms, with the covering depth of the first covering mechanisms being shallower than that of the second covering mechanisms.

[0007] Preferably, the furrowing depth of the sowing plow is less than the furrowing depth of the fertilizing plow.

[0008] Preferably, a positioning tube is provided on the side of the fertilizer plough head adjacent to the first soil covering mechanism, the positioning tube extends vertically, and the fertilizer tube is connected to the positioning tube.

[0009] Preferably, the first soil covering mechanism includes a first connecting rod connected to the traveling frame and a pair of first soil covering plates, the pair of first soil covering plates being symmetrically fixed to the end of the first connecting rod away from the traveling frame and arranged at an angle; the second soil covering mechanism includes a second connecting rod connected to the traveling frame and a pair of second soil covering plates, the pair of second soil covering plates being symmetrically fixed to the end of the second connecting rod away from the traveling frame and arranged at an angle; the position of the first soil covering plate in the direction of gravity is higher than that of the second soil covering plate.

[0010] Preferably, the minimum distance between a pair of first covering plates is greater than or equal to the furrow width of the sowing plow and less than or equal to the furrow spacing of the fertilizer plows on both sides of the sowing plow.

[0011] Preferably, a soil-pressing plate is provided on each side of the pair of first soil-covering plates opposite to each other. The soil-pressing plate extends from the maximum distance between the pair of first soil-covering plates to the minimum distance between the pair of first soil-covering plates, and the connection between the soil-pressing plate and the first soil-covering plate is L-shaped.

[0012] Preferably, the minimum distance between a pair of second covering plates is less than the furrow width of the sowing plow.

[0013] Preferably, a plurality of second ditching mechanisms are further provided on the walking frame between the first soil covering mechanism and the second soil covering mechanism. The plurality of second ditching mechanisms are respectively distributed on the moving track of the sowing plow. The second ditching mechanisms are used to ditch along the moving track of the sowing plow. One end of the sowing tube is connected to the second ditching mechanism. The sowing tube is used to sow along the moving track of the second ditching mechanism.

[0014] Preferably, the sowing mechanism further includes a plurality of single-seed seeders, which are arranged in an array at intervals along the width direction of the traveling frame, and one end of each of the sowing tubes is connected to a single-seed seeder in a one-to-one correspondence.

[0015] Preferably, the single-seed planter includes a seed hopper, a seed suction roller, and a drive mechanism. The bottom of the seed hopper has a seed outlet. The seed suction roller is rotatably disposed at the seed outlet, and its rolling surface is relatively fitted to the seed outlet. The rolling surface of the seed suction roller has seed suction holes distributed in a ring around its circumference. A negative pressure space is formed inside the seed suction roller relative to the outside. All seed suction holes are connected to the negative pressure space. The drive mechanism is drivenly connected to the seed suction roller and is used to control the rotational speed of the seed suction roller. One end of the planting tube is provided with a seed-pushing component. The seed-pushing component is located on the moving path of the seed suction hole and its side is close to the seed suction roller. The seed-pushing component is used to guide the wheat seeds at the seed suction hole into the planting tube.

[0016] By adopting the above technical solution, compared with the prior art, this application has at least the following beneficial effects:

[0017] During the movement of the traveling frame, the first ditching mechanism first digs furrows along the direction of travel via the sowing plow and the fertilizing plow. The fertilizing plow can dig fertilizing furrows on both sides of the sowing furrow opened by the sowing plow, parallel to the sowing furrow. The sowing mechanism sows seeds along the sowing furrow, and the fertilizing mechanism applies fertilizer adjacent to the sowing furrow and along the fertilizing furrow. This ensures that the fertilizer can fertilize the seeds while avoiding the fertilizer from being too close to the seeds and burning them. Furthermore, since the fertilizing pipe is in front of the sowing pipe, the soil covering depth of the first soil covering mechanism is shallower than that of the second soil covering mechanism. The fertilizer first scattered into the fertilizing furrow can be shallowly buried by the first soil covering mechanism. Subsequently, the seeds are scattered into the sowing furrow and are located above the soil where the fertilizer is shallowly buried. Then, the second soil covering mechanism buries the seeds. This not only isolates the seeds and fertilizer from each other by the soil layer, avoiding the burning of the seeds, but also allows the fertilizer to be supplied to the seeds upwards by the evaporation of surface water, ensuring that the seeds are fully fertilized and improving the germination rate of the seeds. Attached Figure Description

[0018] Figure 1This is a side view of the integrated wheat fertilizer and seeder for the embodiment.

[0019] Figure 2 This is a partial isometric view of the traveling frame in the embodiment.

[0020] Figure 3 This is a partial cross-sectional view AA of the wheat fertilization and sowing machine with anti-burn seed in the embodiment.

[0021] Figure 4 This is a partial cross-sectional view BB of the wheat fertilization and sowing machine with anti-burn seed in the embodiment.

[0022] Figure 5 This is a partial schematic diagram of the first soil covering mechanism in the embodiment.

[0023] Figure 6 This is a partial cross-sectional view (CC) of the wheat fertilization and sowing machine with anti-burn seed in the embodiment.

[0024] Figure 7 This is a partial cross-sectional view (DD) of the wheat fertilization and sowing machine with anti-burn seed in the embodiment.

[0025] Figure 8 This is a partial enlarged view F of the single-seed seeder in the embodiment.

[0026] Figure 9 This is a partial cross-sectional view EE of the seeding mechanism in the embodiment.

[0027] Figure 10 This is a partial top view of the seeding mechanism in the embodiment.

[0028] In the diagram: Walking frame 10, first furrowing mechanism 11, sowing plow head 111, fertilizing plow head 112, positioning tube 113, fertilizing mechanism 12, fertilizing pipe 121, fertilizer hopper 122, fertilizer feeder 123, first soil covering mechanism 13, first connecting rod 131, first soil covering plate 132, soil pressing plate 133, sowing mechanism 14, sowing pipe 141, seed feeding hopper 142, seed outlet 1421, seed suction roller 143, seed suction hole 143 1. Positioning groove 1432, air outlet 1433, drive assembly 144, seed feeding component 145, fixing plate 1451, brush bristles 1452, seed storage cavity 146, through hole 1461, discharge port 1462, material gate 1463, negative pressure forming assembly 147, air pump 1471, airflow distributor 1472, air extraction pipe 1473, second soil covering mechanism 15, second connecting rod 151, second soil covering plate 152, second trenching mechanism 16.

[0029] It should be noted that, in order to demonstrate more details of the wide-width single-grain wheat seeder and to help people better understand the contents of this application, the above-mentioned appendix... Figure 1-10Some of the accompanying drawings have been partially interrupted, partially sectional, and partially omitted. For example, to show the structure of the seed suction roller 143, the accompanying drawings have been partially omitted. Figure 7 Part of the seed storage cavity 146 has been omitted; to demonstrate the connection between the seed dispensing component 145 and the sowing tube 141, an appendix is ​​attached. Figure 8 A partial sectional view of the seed tube 141 is shown; to reduce the scale of the attached drawing and show more details, please refer to the attached drawing. Figure 2 The structure of the upper surface of the walking frame 10 is omitted. Figure 3 Appendix Figure 4 Appendix Figure 6 Appendix Figure 7 Appendix Figure 10 Each section has been partially partitioned, and none of the above treatments will have a negative impact on the product details to be displayed in this application. Detailed Implementation

[0030] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The technical solutions of this application will be further described below with reference to the accompanying drawings of the embodiments, and this application is not limited to the following specific implementation methods.

[0031] It should be understood that the same or similar reference numerals in the accompanying drawings of the embodiments correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "inner," "outer," "left," "right," "front," "rear," "top," and "bottom" indicate directions or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the structure or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms describing positional relationships in the accompanying drawings are for illustrative purposes only and should not be construed as limitations on this patent. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0032] The following is in conjunction with the appendix Figure 1 To be continued Figure 10 The present application will be further described in detail with reference to specific embodiments.

[0033] This application discloses a wheat fertilizer-planting integrated machine for preventing seed burn (hereinafter referred to as "the fertilizer-planting integrated machine"), including a walking frame 10 capable of autonomous driving or being towed by a tractor or other traction equipment. The walking frame 10 has wheels and a main structure for carrying other equipment or parts. Along the opposite direction of the walking frame 10's movement, the main structure is sequentially and spaced apart by a first furrowing mechanism 11, a fertilization mechanism 12, a first soil covering mechanism 13, a sowing mechanism 14, and a second soil covering mechanism 15. The number of first furrowing mechanisms 11 is plurality of, located at the foremost edge of the bottom of the walking frame 10 and arranged in an intermittent array along the width of the walking frame 10. Each first furrowing mechanism 11 includes a sowing plow head 111 connected to the walking frame 10 and a pair of fertilization plow heads 112 symmetrically arranged on both sides of the sowing plow head 111. The sowing plow head 111 and its adjacent fertilization plow head 112 are arranged in an "M" shape to facilitate movement. During the process, it can create inverted "U"-shaped furrows; the fertilization mechanism 12 includes several fertilization tubes 121, one end of which extends downward along the direction of gravity, and the lower ends of each tube are distributed above the moving trajectory of the fertilization plow head 112; the sowing mechanism 14 includes several sowing tubes 141, one end of which extends downward along the direction of gravity, and the lower ends of each tube are distributed on the moving trajectory of the sowing plow head 111. The first soil covering mechanism 13 and the second soil covering mechanism 15 are respectively distributed above the moving trajectory of the first trenching mechanism 11. The soil covering depth of the first soil covering mechanism 13, which is positioned further forward, is shallower than that of the second soil covering mechanism 15. That is, when the first soil covering mechanism 13 and the second soil covering mechanism 15 cover the trench opened by the first trenching mechanism 11 with soil, the soil covering thickness of the first soil covering mechanism 13 into the trench is thinner than that of the second soil covering mechanism 15 because the soil covering depth of the first soil covering mechanism 13 is shallower.

[0034] Specifically, to ensure that the fertilization mechanism 12 and the sowing mechanism 14 can fertilize or sow along the furrows opened by the fertilization plow 112 and the sowing plow 111 respectively, the number of fertilization pipes 121 is equal to the number of all fertilization plows 112, and the number of sowing pipes 141 is equal to the number of sowing plows 111, that is, the number of sowing pipes 141 is equal to half the number of fertilization pipes 121; in addition, the fertilization mechanism 12 also includes a fertilizer hopper 122 disposed on the upper side of the traveling frame 10 and a fertilizer hopper 122 disposed on the fertilizer hopper 122. The fertilizer feeder 123 is equipped with an automatic feed feeder function during the movement of the traveling frame 10, and is provided with a number of feed feeders no less than those connected to the fertilizer pipes 121. These feeders are used to connect to each fertilizer pipe 121 and apply fertilizer quantitatively through the fertilizer pipes 121 along the fertilizer furrows opened by the fertilizer plough head 112. The sowing mechanism 14 also includes a seeder for continuous or intermittent sowing, which can sow through the sowing pipe 141 along the sowing furrows opened by the sowing plough head 111 during the movement of the traveling frame 10.

[0035] Using the above-mentioned integrated fertilizer and seed machine has at least the following beneficial effects:

[0036] During the movement of the traveling frame 10, the first furrowing mechanism 11 first furrows along the direction of travel via the sowing plow head 111 and the fertilizing plow head 112. The fertilizing plow head 112 can create fertilizing furrows on both sides of the sowing furrow created by the sowing plow head 111, parallel to the sowing furrow. The sowing mechanism 14 sows along the sowing furrow, and the fertilizing mechanism 12 applies fertilizer adjacent to and along the fertilizing furrow. This ensures that the fertilizer can fertilize the seeds while avoiding the fertilizer from being too close to the seeds and burning them. Furthermore, because the fertilizing pipe 121 is used for sowing... At the front of pipe 141, the soil covering depth of the first soil covering mechanism 13 is shallower than that of the second soil covering mechanism 15. The fertilizer that is first scattered into the fertilization furrow can be shallowly buried by the first soil covering mechanism 13. Then, the seeds are scattered into the sowing furrow and are located above the soil where the fertilizer is shallowly buried. The second soil covering mechanism 15 then covers the seeds. This not only isolates the seeds and fertilizer from the soil layer to avoid burning the seeds, but also allows the fertilizer to be supplied to the seeds upward with the evaporation of surface water, ensuring that the seeds are fully fertilized and improving the germination rate of the seeds.

[0037] In addition, this application provides some more specific implementation methods to improve the above-mentioned anti-burn wheat fertilization and sowing integrated machine.

[0038] To further reduce the seed-burning effect of this application, the furrow depth of the sowing plow head 111 is less than the furrow depth of the fertilizing plow head 112. Specifically, structurally, to ensure that the depth of the sowing furrow is shallower than the depth of the adjacent fertilizing furrows on both sides, the length of the fertilizing plow head 112 extending towards the ground is greater than that of the sowing plow head 111. This further increases the distance between the fertilizer and the seeds in the vertical direction, which not only better avoids seed burn but also increases the burial depth of the fertilizer, which is equivalent to extending the volatilization time of the fertilizer, that is, extending the time for the seeds to absorb fertilizer. This can prevent the fertilizer from becoming ineffective too early, reduce fertilizer waste, and avoid increasing planting costs due to re-fertilization.

[0039] To improve fertilization accuracy, a positioning tube 113 is provided on the side of the fertilizing plow head 112 adjacent to the first soil covering mechanism 13. The positioning tube 113 extends vertically, and the fertilizing tube 121 is connected to the positioning tube 113.

[0040] Specifically, the positioning tube 113 is fixed to the rear side of the fertilizer plough head 112 by welding, wire, strip, or other means or fixing devices. The positioning tube 113 is a short tube with an inner diameter larger than the lower end of the fertilizer tube 121. Its downward extension length does not exceed the furrowing depth of the fertilizer plough head 112. The lower end of the fertilizer tube 121 is inserted into the positioning tube 113, which can prevent the fertilizer tube 121 from shaking. This allows the fertilizer in the fertilizer tube 121 to fall accurately into the fertilizer furrow along the moving path of the fertilizer plough head 112 through the positioning tube 113, preventing the fertilizer from falling outside the furrow or getting close to the seeds.

[0041] Based on the above embodiments, in order to achieve the effect of layering fertilizer and seeds by covering them with soil in stages, the first soil covering mechanism 13 includes a first connecting rod 131 and a pair of first soil covering plates 132. The pair of first soil covering plates 132 are symmetrically fixed to the lower end of the first connecting rod 131 and are inclined at a certain angle. The upper end of the first connecting rod 131 is connected to the bottom of the walking frame 10. The second soil covering mechanism 15 is similar to the first soil covering mechanism 13. The second soil covering mechanism 15 includes a second connecting rod 151 and a pair of second soil covering plates 152. The difference between the second and the first soil covering mechanism 13 is that the position of the first soil covering plate 132 in the direction of gravity is higher than that of the second soil covering plate 152. This allows the first soil covering plate 132 to push a relatively smaller amount of soil into the trench than the second soil covering plate 152 during the process of scraping and covering the trench opened by the first trenching component. The fertilizer in the trench is shallowly buried before sowing.

[0042] Specifically, the first covering plate 132 and the second covering plate 152 can both be a pair of triangular or circular thin metal plates that are inclined to each other and form a pushing angle in the direction of travel of the traveling frame 10, so that during the movement, the soil on both sides of the trench opened by the first trenching mechanism 11 can be pushed into the trench to bury the fertilizer and seeds respectively.

[0043] In a preferred embodiment, the minimum distance between any pair of first covering plates 132 is greater than or equal to the furrow width of the sowing plow 111 and less than or equal to the distance between the fertilization furrows opened by the fertilization plows 112 on both sides of the sowing plow 111. In this example, since the first covering plates 132 are set at an angle, the distance between the first covering plates 132 gradually decreases along the direction of movement of the traveling frame 10. When the minimum distance between the first covering plates 132 (i.e., the distance between the rear ends of the first covering plates 132) is greater than or equal to the width of the sowing furrow and less than or equal to the distance between adjacent pairs of fertilization furrows, the covering range of the first covering mechanism 13 is sufficient to ensure that the fertilizer in the fertilization furrows on both sides of the sowing furrow is buried, thereby preventing the later-sown seeds from encountering the fertilizer that entered the furrow earlier.

[0044] In this embodiment, the minimum distance between a pair of second covering plates 152 is less than the furrow width of the sowing plow head 111, that is, the covering range of the second covering mechanism 15 can ensure that the seeds in the sowing furrow are also covered to a certain extent while the fertilization furrow is completely buried.

[0045] Preferably, in this embodiment, a soil-pressing plate 133 is also provided on one side of the pair of first soil-covering plates 132. The soil-pressing plates 133 are also symmetrically distributed inside the first soil-covering plates 132, and the soil-pressing plates 133 extend parallel from the maximum distance on the front side of the first soil-covering plates 132 to the minimum distance on the rear side, so that the connection between the soil-pressing plates 133 and the first soil-covering plates 132 is L-shaped. Specifically, in this embodiment, the first soil-covering plate 132 is preferably a triangular metal plate, and the soil-pressing plate 133 is perpendicular to the first soil-covering plate 132 and welded between the pair of first soil-covering plates 132. The soil pressing plate 133 can limit the depth of the first soil covering plate 132 inserted into the soil, thereby enabling more precise control of the amount of soil pushed and the soil covering depth of the first soil covering plate 132. In terms of the burying effect of the fertilization furrow, the soil pressing plate 133 can limit the depth of the first soil covering plate 132 into the soil, thereby achieving the effect of "shallow burial" of the fertilization furrow. This can prevent the soil covering amount of the first soil covering plate 132 from being too large, which would cause the sowing furrow to be buried in advance before sowing.

[0046] Furthermore, to better reflect the sowing precision of this application, a second ditching mechanism 16 is also provided at the bottom of the walking frame 10 between the first soil covering mechanism 13 and the second soil covering mechanism 15. The number of second ditching mechanisms 16 is the same as that of the first ditching mechanisms 11, and they are also distributed above the moving trajectory of the sowing plow head 111, so that secondary ditching can be achieved along the moving direction of the sowing plow head 111. Specifically, in order to enable the sowing tube 141 to sow accurately along the second ditching mechanism 16, the second ditching mechanism 16 is preferably a disc-type ditcher. The disc-type ditcher includes a fixed rib and a pair of symmetrical circular soil breaking plates arranged at an angle. The pair of circular soil breaking plates are fixed to the lower side of the fixed rib by support arms arranged on both sides of the fixed rib. An installation hole is also provided on the rear side of the fixed rib between the angle of the pair of circular soil breaking plates. The lower end of the sowing tube 141 extends through the installation hole to the space between the pair of circular soil breaking plates.

[0047] When using the above-mentioned fertilizer and seeding integrated machine, the disc-type furrow opener can not only perform secondary fine furrowing in the existing sowing furrows, further break up the soil clods in the sowing furrows, and make the sowing furrows of uniform depth, but also partially block the lower end of the sowing tube 141, which plays a certain role in wind protection and orientation during the sowing process, and helps the seeds to accurately enter the sowing furrows.

[0048] In another embodiment, to further improve the seed-burning effect, the sowing mechanism 14 further includes single-seed seeders. The number of single-seed seeders is not less than the number of the first furrowing mechanisms 11, and they are also arranged in an array at intervals along the width extension direction of the traveling frame 10. The upper end of the sowing tube 141 is connected to each single-seed seeder in a one-to-one correspondence. Compared with other types of seeders, sowing along the sowing tube 141 with single-seed seeders can reduce the seed output frequency and flow rate of the seeder, so that the seeds are evenly separated at a certain plant spacing. This not only avoids the seed "clustering" leading to uneven fertilization and "malnutrition," but also further reduces the probability of close contact between seeds and fertilizer, thereby improving the seed quality rate.

[0049] Specifically, the single-seed planter includes a seed hopper 142, a seed suction roller 143, and a drive assembly 144. The bottom of the seed hopper 142 has a seed outlet 1421 that fits the rolling surface of the seed suction roller 143. The top of the seed hopper 142 is connected to a seed storage bin. The seed hopper 142 allows seeds in the seed storage bin to be discharged along the direction of gravity and approach the seed suction roller 143. The rolling surface of the seed suction roller 143 has several seed suction holes 1431 arranged in a ring around its circumference, and the interior of the seed suction roller 143 can form a negative pressure space through a vacuum principle. All the seed suction holes 1431 are connected to this negative pressure space. Supports are provided on both sides of the seed hopper 142, extending towards the discharge direction of the seed outlet 1421. The seed suction roller 143 is driven by the supports... The frame is rotatably mounted at the seed outlet 1421, and its (referring to the seed suction roller 143) rolling surface fits into the seed outlet 1421, that is, the rolling surface can cover the outside of the seed outlet 1421 during rotation. The drive assembly 144 is connected to one side bottom surface of the seed suction roller 143 via a drive shaft, and is used to drive the seed suction roller 143 to rotate, so that the seed suction roller 143 absorbs wheat seeds into the seed suction hole 1431 during rotation. The upper end of the sowing tube 141 extends to a position close to the lower side of the seed suction roller 143, and a seed-dispensing component 145 is provided at this end. The seed-dispensing component 145 is located on the moving path of the seed suction hole 1431 and is at least partially close to the rolling surface of the seed suction roller 143. The seed-dispensing component 145 can dispense the seeds away from the seed suction hole 1431 and guide them to fall into the sowing tube 141.

[0050] It should be noted that, firstly, in order to consider that the above-mentioned single-seed planter can achieve the speed of seed suction and seed dispensing by changing the rotation speed of the seed suction roller 143, the drive assembly 144 preferably includes a variable frequency motor, which can provide different power to the seed suction roller 143 to achieve the speed change. In addition, in order to adapt to different speeds according to different sowing spacings, the drive assembly 144 also includes a speed change device (such as a reduction gear set) connected to the seed suction roller 143 to achieve the speed change effect; secondly, in order to enable the seed dispensing component 145 to guide the wheat seeds at the seed suction hole 1431 into the sowing tube 141 and along the sowing path, The seed tube 141 falls into the sowing furrow. Although the seed-dispensing component 145 is fixed to one end of the sowing tube 141, it can ensure that the opening of the sowing tube 141 is open, so that the wheat seeds dispensing from the seed suction port by the seed-dispensing component 145 can enter the sowing tube 141. Third, in order to prevent wheat seeds from being sucked into the seed suction roller 143, the opening diameter of the seed suction hole 1431 should be at least smaller than the average particle size of the wheat seeds. In order to prevent the seed suction hole 1431 from being blocked, the wheat seeds stored in the seed hopper 142 should be subjected to strict dust removal, particle size selection and other optimization treatments in advance to ensure that the seeds are relatively clean and have a uniform particle size.

[0051] When using the above-mentioned single-seed planter, after completing the preparatory work or process before sowing, such as tilling, ditching, and fertilizing, the walking frame 10 carries several single-seed planters arranged in a horizontal array to sow along the sowing furrow. The specific steps are as follows: First, a negative pressure space is generated inside the seed suction roller 143 by vacuuming. Then, the drive component 144 is started, and the drive component 144 drives the seed suction roller 143 to rotate at a set speed, so that each seed suction hole 1431 passing through the seed outlet 1421 can absorb a wheat seed. When the seed suction hole 1431 with wheat seeds is absorbed passes the seed-dispensing component 145, the seed-dispensing component 145 successively dispenses the wheat seeds away from the seed suction hole 1431. When the wheat seeds are misaligned with the seed suction hole 1431, they fall to the sowing tube 141 under gravity and are successively sown into the sowing furrow by the sowing tube 141.

[0052] Furthermore, the aforementioned seed-dispensing component 145 includes a fixing plate 1451 and bristles 1452. Specifically, a slot is provided on the inner side of the end of the seed-dispensing tube 141 near the seed-suction roller 143, the fixing plate 1451 is inserted into the slot along the direction of gravity, and the bristles 1452 are densely laid on the side of the fixing plate 1451 adjacent to the seed-suction roller 143 to form a plate-like structure. One end of the bristles 1452 is in close contact with the rolling surface of the seed-suction roller 143, and the laying width of the bristles 1452 corresponding to any set of seed-suction holes 1431 is at least able to cover the aperture of any of the seed-suction holes 1431.

[0053] The beneficial effects of using the seed-dispensing component 145 with the above structure are as follows: When the bristles 1452 that are in close contact with the roller surface of the seed-suction roller 143 come into contact with the wheat seeds adsorbed by the seed-suction hole 1431, because the texture of the bristles 1452 is relatively soft, after the bristles 1452 dispense the wheat seeds away from the seed-suction hole 1431, some of the bristles 1452 are sucked into the seed-suction hole 1431. This can prevent the wheat seeds that have just been dispensed from being adsorbed by the seed-suction hole 1431 again. In addition, the friction of the bristles 1452 against the roller surface is small, which can reduce the friction on the seed-suction roller 143 while ensuring the dispensing effect on the wheat seeds, and extend the service life of the seed-suction roller 143.

[0054] Based on the above embodiments, the roller surface of the seed suction roller 143 is provided with a positioning groove 1432 in a ring shape along the circumference, each set of seed suction holes 1431 is arranged along the extension direction of the positioning groove 1432, and one end of the bristles 1452 extends into the positioning groove 1432, and the laying width of the bristles 1452 is not greater than the width of the positioning groove 1432.

[0055] When using the above-mentioned single-seed planter, the positioning groove 1432 can concentrate the suction force of the seed suction hole 1431 around the seed suction hole 1431, so that the adsorbed wheat seeds are distributed along the positioning groove 1432, and the bristles 1452 can cover the positioning groove 1432 along the width direction of the positioning groove 1432, which can ensure that the wheat seeds are pushed away from the seed suction hole 1431, and can work with the positioning groove 1432 to ensure that the peeled seeds are accurately put into the seeding tube 141.

[0056] Furthermore, the seeding mechanism 14 also includes a negative pressure forming component 147 for evacuating the seed suction roller 143. The negative pressure forming component 147 includes an air pump 1471, an airflow splitter 1472, and an air extraction pipe 1473. The air inlet of the air pump 1471 is connected to several air extraction pipes 1473 through the airflow splitter 1472. An air outlet 1433 is provided on one side of the seed suction roller 143. One side of the air outlet 1433 is connected to the negative pressure space, and the other side is sealed and rotatably connected to the air extraction pipe 1473 through a rotary joint. Specifically, the aforementioned airflow splitter 1472 is provided with several interconnected or independent air inlets. These air inlets are connected to the air outlet 1433 of each seed suction roller 143 via an air extraction pipe 1473. By turning on the air pump 1471, air is extracted, causing a negative pressure space to be simultaneously formed inside the seed suction rollers 143. Furthermore, the rotary joint used to rotatably and sealingly connect the air extraction pipe 1473 and the air outlet 1433 simultaneously has the functions of partial rotation and connecting pipelines. For example, a rotary joint with good sealing performance disclosed in Chinese Utility Model Publication No. CN208982847U has an inner tube inside, allowing for rotation... The adapter transports fluid through an inner tube. The rotary adapter consists of a main connector and a secondary connector, which can rotate relative to each other. Both the main connector and the secondary connector have threads on their surfaces for connecting the pipes at both ends. The main connector and the secondary connector are connected to the air outlet 1433 and the air extraction pipe 1473 respectively through the threads. When the seed suction roller 143 rotates, the main connector rotates relative to the secondary connector and can extract air outward through the inner tube, so that a negative pressure space can be formed inside the seed suction roller 143. (Since the specific structure of this rotary adapter is not a necessary technical feature for realizing this application, its structural appearance has been omitted in the attached drawings and will not be described again hereafter.)

[0057] Furthermore, to prevent seeds adsorbed by the seed suction roller 143 from falling outside the sowing furrow due to unstable suction or blockage of the seed suction hole 1431, thus causing seed leakage and waste, the sowing mechanism 14 also includes a seed collection cavity 146. The seed collection cavity 146 has a snap-fit ​​opening on its upper side and is snapped into the bottom of the seed hopper 142. The seed suction roller 143 is surrounded inside the seed collection cavity 146. The seed collection cavity 146 can collect wheat seeds that fall from the seed suction hole 1431 due to the above factors, thus avoiding waste of wheat seeds. The bottom of the seed collection cavity 146 is also provided with a through hole 1461. The sowing tube 141 extends downward through the through hole 1461 and is sealed to the through hole 1461, so that the sowing tube 141 can sow normally while preventing seeds from leaking out from the gap between the sowing tube 141 and the through hole 1461.

[0058] Based on the above embodiment, the internal space of the seed collection cavity 146 is funnel-shaped, and its bottom is provided with a discharge port 1462 at intervals from the above-mentioned through hole 1461. The operator can collect the missed seeds collected in the seed collection cavity 146 through the discharge port 1462. A baffle gate 1463 can be hinged to the discharge port 1462. The baffle gate 1463 can rotate around the hinge part between the first position and the second position so that the discharge port 1462 is closed or opened.

[0059] By combining the various structures and features in the above embodiments, the above single-seed seeder can reduce seed waste while improving seeding efficiency and accuracy.

[0060] Obviously, the above embodiments of this application are merely examples for clearly illustrating this application, and are not intended to limit the implementation of this application. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A burn-in prevention wheat fertilization and seeding integrated machine, comprising a walking frame, characterized in that, The first furrowing mechanism, the fertilizing mechanism, the first soil covering mechanism, the seeding mechanism and the second soil covering mechanism are sequentially arranged on the walking frame in the reverse direction of the walking direction of the walking frame, a plurality of the first furrowing mechanisms are arranged in an array along the width direction of the walking frame, the first furrowing mechanism comprises a seeding plow head connected with the walking frame and a fertilizing plow head symmetrically arranged on both sides of the seeding plow head, and the seeding plow head and the adjacent fertilizing plow head are arranged in an M shape.

2. The integrated burning seed prevention wheat fertilizing and seeding machine according to claim 1, characterized in that, The furrowing depth of the seeding plow head is less than the furrowing depth of the fertilizing plow head.

3. The integrated burning seed prevention wheat fertilizing and seeding machine according to claim 1, characterized in that, The fertilizing plow head is provided with a positioning pipe adjacent to one side of the first soil covering mechanism, the positioning pipe extends in the vertical direction, and the fertilizing pipe is in communication with the positioning pipe.

4. The integrated burning seed prevention wheat fertilizing and seeding machine according to claim 1, characterized in that, The first soil covering mechanism comprises a first connecting rod connected with the walking frame and a pair of first soil covering plates, the pair of first soil covering plates are symmetrically fixed to one end of the first connecting rod away from the walking frame and are arranged at an angle, and the second soil covering mechanism comprises a second connecting rod connected with the walking frame and a pair of second soil covering plates, the pair of second soil covering plates are symmetrically fixed to one end of the second connecting rod away from the walking frame and are arranged at an angle, and the position of the first soil covering plate in the gravity direction is higher than that of the second soil covering plate.

5. The integrated burning seed prevention wheat fertilizing and seeding machine according to claim 4, characterized in that, The minimum distance between the pair of first soil covering plates is greater than or equal to the furrowing width of the seeding plow head and less than or equal to the furrowing spacing of the fertilizing plow heads on both sides of the seeding plow head.

6. The integrated burning seed prevention wheat fertilizing and seeding machine according to claim 5, characterized in that, The opposite sides of the pair of first soil covering plates are respectively provided with soil pressing plates, the soil pressing plates extend from the maximum distance between the pair of first soil covering plates to the minimum distance between the pair of first soil covering plates, and the connection between the soil pressing plate and the first soil covering plate is in an L shape.

7. The integrated burning seed prevention wheat fertilizing and seeding machine according to claim 4, characterized in that, The minimum distance between the pair of second soil covering plates is less than the furrowing width of the seeding plow head.

8. The integrated burning seed prevention wheat fertilizing and seeding machine according to claim 1, characterized in that, A plurality of second furrowing mechanisms are arranged on the walking frame between the first soil covering mechanism and the second soil covering mechanism, a plurality of the second furrowing mechanisms are respectively arranged on the moving track of the seeding plow head, and the second furrowing mechanism is used for furrowing along the moving track of the seeding plow head.

9. The burnet-preventing wheat fertilizing and sowing integrated machine according to any one of claims 1 to 8, characterized in that, The seeding mechanism further comprises a plurality of single-seed seeders, a plurality of the single-seed seeders are arranged in an array along the width direction of the walking frame, and one end of a plurality of the seeding pipes is respectively connected with the single-seed seeders one by one.

10. The integrated burning seed prevention wheat fertilizing and seeding machine according to claim 9, characterized in that, The single-seed sowing device comprises a seed feeding hopper, a seed suction roller and a driving assembly, the bottom of the seed feeding hopper is provided with a seed outlet, the seed suction roller is rotatably arranged at the seed outlet and the rolling surface of the seed suction roller is in close contact with the seed outlet, the rolling surface of the seed suction roller is annularly and spacedly provided with seed suction holes in the circumferential direction, the inside of the seed suction roller is formed with a negative pressure space relative to the outside, the seed suction holes are in communication with the negative pressure space, the driving assembly is in transmission connection with the seed suction roller, and the driving assembly is used for controlling the rotating speed of the seed suction roller; one end of the sowing pipe is provided with a seed poking piece, the seed poking piece is located on the moving path of the seed suction hole and is close to the seed suction roller on one side, and the seed poking piece is used for guiding the wheat seeds at the seed suction hole into the sowing pipe.

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