Ridge-cleaning corn precision seeder and method for seeding by using ridge-cleaning corn precision seeder

Abstract

The invention belongs to the technical field of sowing machines and sowing methods, and discloses a ridge-cleaning corn precision sowing machine and a sowing method using the ridge-cleaning corn precision sowing machine. The machine is mainly technically characterized by comprising a seeding mechanism with a seeding plough foot, a soil moisture filling disc and a pressing roller which correspond to the seeding plough foot are arranged behind the seeding plough foot, a rotating shaft connected with the machine frame through a bearing is arranged on the machine frame in front of the seeding plough foot, and a reverse speed-changing gear box in power connection with the rotating shaft is arranged on the machine frame. A ridge cleaning cutter head is arranged on the rotating shaft in front of the corresponding sowing plough foot, a plurality of ridge cleaning blades are arranged on the ridge cleaning cutter head in the circumferential direction of the ridge cleaning cutter head, the ridge cleaning blades intersect with the plane where the ridge cleaning cutter head is located at a certain angle, and the rotating direction of the ridge cleaning blades is opposite to the direction of the soil moisture filling disc. A cutting edge is arranged on one side of the ridge cleaning blade in the advancing direction. The chopped wheat stubbles and straws are pushed forward obliquely, and a shallow ditch without the wheat stubbles and straws is formed in front of the sowing plough foot, so that seed germination and soil moisture conservation are facilitated, and diseases and insect pests are reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of seeders and seeding methods, and particularly relates to a ridging maize precision seeder and a seeding method using the ridging maize precision seeder. Background Art

[0002] Currently, the following three seeding methods are mainly adopted for no-till seeding: Firstly, after harvesting wheat, seeding operations are directly carried out on the surface of the land covered with straw without tillage. The following defects exist in this method: 1. Some straws cannot be cut by the disc cutter but are pressed into the seed furrow, which will cause the seeds discharged from the seed guide pipe to fall on the straws pressed into the seed furrow, making the seeds be lifted by the straws and unable to contact the soil, and thus unable to germinate; 2. The straws are pressed into the seed furrow, increasing the soil permeability and poor moisture retention performance, which is not conducive to the growth of maize; 3. The straws are mixed into the soil around the maize seeds, and pests in the soil such as Athetis lepigone grow attached to the straws or wheat stubbles, making it difficult to control pests and diseases, and affecting the growth and yield of maize; Secondly, a rotary tillage disc with rotary tillage knives is arranged in front of the seeding hoe. Before seeding, the wheat stubbles or straws in front of the seeding hoe are broken, and the surface crust in front of the seeding hoe is also broken, and then seeding is carried out. The following defects exist in this method: The rotary tillage knives of the rotary tillage disc only break the wheat stubbles and straws, and the broken wheat stubbles and straws still remain in the seed furrow. During seeding, it will also cause the seeds discharged from the seed guide pipe to fall on the straws pressed into the seed furrow, making the seeds be lifted by the straws and unable to contact the soil, and thus unable to germinate; it is not conducive to moisture retention and pest and disease control; Third, a rotary tillage disc with a rotary tiller is provided in front of the sowing plow foot. Before sowing, the wheat stubble or straw in front of the sowing plow foot is pushed to both sides. For example, the patent name is: A kind of obstacle clearing rotary tillage blade group, rotary tiller and combined seeder, the patent application number is: 202310449092.0; the patent publication number is: CN116391466A. Although the purpose of this patent is to push the wheat stubble or straw in front of the sowing plow foot to both sides, there are the following defects in actual operation: 1. Each ridge clearing blade group contains at least two blades, and at least two blades are provided on each ridge clearing blade, resulting in incomplete removal of the straw and wheat stubble in the middle of the seed furrow; 2. There is a curved portion at the end of the rotary tillage blade. The function of the rotary tillage blade is to rotary till the soil, and then pull up the wheat stubble in the seed furrow from the ground. The rotary tillage blade basically does not cut the wheat stubble and straw in the seed furrow, but only pushes the wheat stubble or straw in the seed furrow away. The straw and wheat stubble It accumulates between two adjacent sowing plow feet, affecting sowing; when pushing away the wheat stubble or straw, the wheat stubble or straw gets caught on the curved part of the end of the rotary tillage blade, causing too much soil in the seed furrow to be pushed to both sides, forming deep furrows in the seed furrow, and not utilizing the moisture collection; 3. During rotary tillage, the rotation direction of the ridge clearing disc is consistent with that of the moisture collection disc, and the end of the rotary tillage blade that contacts the ground moves backward relative to the ground, and the wheat stubble or straw is thrown obliquely to the rear. Although the rear and the sowing plow foot corresponding to the ridge clearing disc group are cleaned, the wheat stubble and straw thrown obliquely to the rear will affect the adjacent sowing plow feet. Summary of the invention

[0003] The first technical problem to be solved by the present invention is to provide a ridge-clearing corn precision seeder which can effectively break up and clean up the wheat stubble and straw in front of the sowing harrow foot, has a high seed germination rate, good moisture conservation effect, and few diseases and insect pests.

[0004] In order to solve the above problems, the technical solution adopted by the ridge-clearing corn precision seeder of the present invention is: It includes a frame with a suspension rack at the front end. A seeding mechanism is arranged behind the frame. The seeding mechanism includes a seeding rack connected to the frame by a pin shaft. A seed box is arranged on the seeding rack. Below the seed box, there are seeding coulters connected to the seed box through a seed guide pipe. A soil leveling shaft is arranged behind the seeding coulters. Soil leveling disks are arranged at positions corresponding to the seeding coulters on the soil leveling shaft. A pressing roller is arranged behind the soil leveling disks. A seeding gearbox is arranged on the frame. The pressing roller is power-connected to the seeding gearbox through a transmission mechanism. The seeding roller is power-connected to the seeding gearbox through a seeding chain. A seeding depth adjustment rod is arranged above the soil leveling disk. A seeding depth adjustment handle is arranged on the seeding rack. A rotating shaft connected to the frame by a bearing is arranged on the frame in front of the seeding coulter. A reverse gearbox power-connected to the rotating shaft is arranged on the frame. A ridging clearing cutter disk is arranged on the rotating shaft in front of the corresponding seeding coulter. A plurality of ridging clearing blades are arranged along the circumferential direction of the ridging clearing cutter disk. The ridging clearing blades intersect the plane where the ridging clearing cutter disk is located at a certain angle. Adjacent ridging clearing blades are respectively located on both sides of the ridging clearing cutter disk and have the same angle with the plane where the ridging clearing cutter disk is located. The rotating direction of the ridging clearing blades is opposite to the rotating direction of the soil leveling disk. One side of the ridging clearing blades in the advancing direction has a cutting edge.

[0005] Its additional technical features are as follows: The ridging clearing cutter disk includes a cutter disk fixing sleeve and a cutter disk body located radially outside the cutter disk fixing sleeve. The cutter disk body includes a left cutter disk and a right cutter disk spaced at a certain distance. Blade fixing holes are arranged on the left cutter disk and the right cutter disk. Blade fixing bolts are arranged in the blade fixing holes. Two through holes are arranged on each ridging clearing blade, and washers are arranged on different sides of the two through holes; The cross-section of the rotating shaft is a regular polygon, and the cross-section of the cutter disk fixing sleeve is a polygon matching the cross-section of the rotating shaft. An adjusting positioning bolt is arranged on the cutter disk fixing sleeve; The thickness of the ridging clearing blade is 0.5 cm - 1.5 cm; The other side of the ridging clearing blade also has a cutting edge; Upper cover plates and front cover plates are respectively arranged on the frame above and in front of the ridging clearing blades; A fertilizer box is arranged on the frame in front of the seed box, and a fertilizer application coulter is arranged at the lower end of the fertilizer box.

[0006] The second technical problem to be solved by the present invention is to provide a method for corn seeding using the above-mentioned ridging clearing corn precision seeder.

[0007] To solve the above problems, the technical solution adopted by the method for corn seeding using the ridging clearing corn precision seeder of the present invention is as follows: The method comprises the following steps: In the first step, the ridging blade crushes and deflects the wheat stubble in front of the seeding colter foot. As the seeding machine moves forward, the power output shaft of a traction power machine such as a tractor drives the rotating shaft to rotate through a reverse gearbox. The rotating direction of the ridging blade is opposite to that of the soil leveling disc. The ridging blade rotates along with the rotating shaft. While the ridging blade cuts up the wheat stubble and straw directly in front of the seeding colter foot, it deflects the cut-up wheat stubble and straw obliquely forward, and at the same time cuts up the hard soil surface directly in front of the seeding colter foot and deflects part of the soil obliquely forward, forming a shallow groove without wheat stubble and straw in front of the seeding colter foot. The cut-up wheat stubble, straw and deflected soil are located between two adjacent seeding colter feet. In the second step, seeding is carried out. As the soil leveling disc and the seeding colter foot move forward, the pressing roller drives the seeding gearbox through a transmission mechanism. The seeding gearbox drives the seeding roller to rotate through a seeding chain, and seeds in the seed box are sown into the soil through a seed guiding tube and the seeding colter foot. The cut-up wheat stubble, straw and deflected soil pass through between two adjacent seeding colter feet. In the third step, soil leveling is carried out. The soil leveling disc buries the soil around the seeds above the seeds. In the fourth step, pressing is carried out. The pressing roller compacts the soil after soil leveling, and a shallow groove is formed on the ground surface in the sowing channel after compaction.

[0008] Compared with the prior art, the ridging type precision seeding machine for maize provided by the present invention and the method for maize seeding using the ridging type precision seeding machine for maize have the following advantages: First, it includes a frame with a hanging frame at the front end, a sowing mechanism is arranged at the rear of the frame, and the sowing mechanism includes a sowing frame connected to the frame through a pin shaft, a seed box is arranged on the sowing frame, and a sowing harrow foot connected with the seed box through a seed guide tube is arranged below the seed box, a moisture combining shaft is arranged behind the sowing harrow foot, a moisture combining disk is arranged on the moisture combining shaft at a position corresponding to the sowing harrow foot, a pressing roller is arranged behind the moisture combining disk, a sowing gearbox is arranged on the frame, the pressing roller is connected to the sowing gearbox power through a transmission mechanism, the sowing roller is connected to the sowing gearbox power through a sowing chain, a sowing depth adjusting rod is arranged above the moisture combining disk, and a sowing frame is provided with a sowing frame. A sowing depth adjustment handle is provided, a rotating shaft connected to the frame through a bearing is provided on the frame in front of the sowing harrow foot, a reverse gear transmission connected to the rotating shaft power is provided on the frame, a ridge clearing knife disc is provided on the rotating shaft in front of the corresponding sowing harrow foot, a plurality of ridge clearing blades are provided on the ridge clearing knife disc along the circumferential direction of the ridge clearing knife disc, the ridge clearing blades intersect the plane where the ridge clearing knife disc is located at a certain angle, adjacent ridge clearing blades are respectively located on both sides of the ridge clearing knife disc and have the same angle with the plane where the ridge clearing knife disc is located, the rotation direction of the ridge clearing blade is opposite to the rotation direction of the moisture combining disc, and a blade is provided on one side of the forward direction of the ridge clearing blade, so as to connect the suspension frame with a tractor or the like The suspension frames of the power mechanism are connected together, the seeder moves forward, and the power output shaft of the tractor and other traction power machinery drives the rotating shaft to rotate through the reverse gear gearbox. The rotation direction of the ridge cleaning blade is opposite to that of the moisture combining disc. The ridge cleaning blade with a blade cuts the wheat stubble and straw in front of the sowing plow foot while rotating, and pushes the cut wheat stubble and straw obliquely forward, and cuts the hard land surface in front of the sowing plow foot and pushes part of the soil obliquely forward, forming a shallow ditch without wheat stubble and straw in front of the sowing plow foot, and the cut wheat stubble, straw and pushed soil are located between two adjacent sowing plow feet; the moisture combining disc and the sowing plow foot move forward, and the pressing roller drives the sowing gearbox through the transmission mechanism, and the sowing gearbox drives the sowing plow foot through the sowing The seed chain drives the seeding roller to rotate, and the seeds in the seed box are sown into the soil through the seed guide tube and the seeding plow foot, and the chopped wheat stubble, straw and the separated soil pass through the two adjacent seeding plow feet; the soil around the seeds is buried above the seeds by the soil-combining plate; the pressing roller compacts the soil after soil-combining, and the compacted seeding channel forms a shallow groove on the surface; the ridge-clearing blade is a flat plate inclined outward, and the ridge-clearing blade is provided with a blade, and when the blade of the ridge-clearing blade touches the wheat stubble or straw, the wheat stubble and straw can be easily chopped, even if the stubble and straw cannot be cut off due to the blunt blade or the soft soil, because the blade of the ridge-clearing blade is a straight line, the uncut wheat stubble and straw on the blade are thrown obliquely forward under the action of centrifugal force and will not hang on the blade;Moreover, the cut wheat stubbles and straws are thrown obliquely forward, forming a shallow ditch without wheat stubbles and straws between the ridging blade and the seeding hoe foot. The seeding hoe foot sows the seeds in the seed furrow. Even if the wheat stubbles and straws thrown obliquely forward reach the front of the adjacent ridging blade, they will be cleared by the subsequent arriving ridging blade and will not affect the seed furrow behind the ridging blade; Second, since the ridging cutter head includes a cutter head fixing sleeve and a cutter head body located radially outside the cutter head fixing sleeve, the cutter head body includes a left cutter head and a right cutter head spaced at a certain distance. Blade fixing holes are provided on the left cutter head and the right cutter head, and blade fixing bolts are provided in the blade fixing holes. Two through holes are provided on each ridging blade, and gaskets are provided on different sides of the two through holes. The angle of the ridging blade can be changed by adjusting the thickness of the gasket according to different soil moisture conditions, the amount of wheat stubbles and straws, making it more convenient to use; Third, since the cross-section of the rotating shaft is a regular polygon and the cross-section of the cutter head fixing sleeve is a polygon matching the cross-section of the rotating shaft, an adjusting positioning bolt is provided on the cutter head fixing sleeve, and the position of the ridging cutter head can be adjusted according to the spacing of the seeding hoe feet, making it more convenient to use; Fourth, since the thickness of the ridging blade is 0.5 cm - 1.5 cm, it can effectively remove the wheat stubbles and straws in front of the seeding hoe foot; Fifth, since there is also a cutting edge on the other side of the ridging blade, after using for a period of time, the ridging blade can be turned over front and back. When the cutting edges on both sides are not sharp, then the ridging blade can be removed and sharpened uniformly, making it more convenient to use; Sixth, since an upper cover plate and a front cover plate are respectively provided on the frame above and in front of the ridging blade, it prevents the lifted wheat stubbles, straws and dust from flying up, reducing environmental pollution; Seventh, since a fertilizer box is provided on the frame in front of the seed box, and a fertilizer hoe foot is provided at the lower end of the fertilizer box, fertilization can be carried out while sowing. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 is a schematic structural diagram of the ridging corn precision seeder of the present invention; Figure 2 is a schematic structural diagram of the ridging blade; Figure 3 is a cross-sectional view of the ridging blade; Figure 4 is a schematic structural diagram of the cross-section of the ridging cutter head for installing the ridging blade. DETAILED DESCRIPTION OF THE INVENTION

[0010] The structure, usage principle of the ridging corn precision seeder of the present invention and the method of sowing with the ridging corn precision seeder will be further described in detail below in conjunction with the drawings and specific embodiments.

[0011] For the convenience of description, the forward direction of the seeder is the front.

[0012] As Figure 1 , Figure 2 , Figure 3 and Figure 4 shown in the figure, the structural schematic diagram of the ridging and precision seeding machine for corn of the present invention. The ridging and precision seeding machine for corn of the present invention includes a frame 2 with a suspension bracket 1 at the front end. A seeding mechanism 3 is arranged behind the frame 2. The seeding mechanism 3 includes a seeding frame 4 connected to the frame 2 through a pin shaft. A seed box 5 is arranged on the seeding frame 4. A seeding hoe foot 7 communicated with the seed box 5 through a seed guiding pipe 6 is arranged below the seed box 5. A soil leveling shaft 34 is arranged behind the seeding hoe foot 7. A soil leveling disk 11 is arranged on the soil leveling shaft 34 at a position corresponding to the seeding hoe foot. A pressing roller 12 is arranged behind the soil leveling disk 11. A seeding gearbox 8 is arranged on the frame 2. The pressing roller 12 is power-connected to the seeding gearbox 8 through a transmission mechanism 9. A seeding roller 10 is power-connected to the seeding gearbox 8 through a seeding chain 35. A seeding depth adjusting rod 13 is arranged above the soil leveling disk 11. A seeding depth adjusting handle 14 is arranged on the seeding frame 4.

[0013] A rotating shaft 15 connected to the frame 2 through a bearing is arranged on the frame 2 in front of the seeding hoe foot 7. A reverse gearbox 16 power-connected to the rotating shaft 15 is arranged on the frame 2. A ridging cutter disk 17 is arranged on the rotating shaft 15 in front of the corresponding seeding hoe foot 7. A plurality of ridging blades 18 are arranged on the ridging cutter disk 17 along the circumferential direction of the ridging cutter disk. The ridging blades 18 intersect the plane where the ridging cutter disk 17 is located at a certain angle. Adjacent ridging blades 18 are respectively located on both sides of the ridging cutter disk 18 and have the same included angle with the plane where the ridging cutter disk 18 is located. The rotating direction of the ridging blades 18 is opposite to the direction of the soil leveling disk 11. A cutting edge 19 is arranged on one side of the ridging blades 18 in the forward direction.

[0014] Connect the suspension frame 1 with the suspension frame of a traction power mechanism such as a tractor. As the seeder moves forward, the power output shaft of the traction power machinery such as the tractor drives the rotating shaft 15 through the reverse gear transmission 16. The rotation direction of the ridging blade 18 is opposite to that of the soil leveling disc 11. While rotating, the ridging blade 18 with the cutting edge 19 cuts the wheat stubble and straw in front of the seeding colter foot 7 and at the same time deflects the cut wheat stubble and straw obliquely forward, and also cuts the hard soil surface in front of the seeding colter foot and deflects part of the soil obliquely forward, forming a shallow ditch without wheat stubble and straw in front of the seeding colter foot 7. The cut wheat stubble, straw and deflected soil are located between two adjacent seeding colter feet 7. The soil leveling disc 11 and the seeding colter foot 7 move forward. The pressing roller 12 drives the seeding transmission 8 through the transmission mechanism 9. The seeding transmission 8 drives the seeding roller 10 to rotate through the seeding chain 35, and seeds in the seed box are sown into the soil through the seed guide tube 6 and the seeding colter foot 7. The cut wheat stubble, straw and deflected soil pass through between two adjacent seeding colter feet. The soil leveling disc 11 buries the soil around the seeds above the seeds. The pressing roller 12 compacts the soil after soil leveling. The compacted seeding channel forms a shallow ditch on the ground surface. The ridging blade 18 is a flat plate inclined outward, and the ridging blade 18 is provided with the cutting edge 19. When the cutting edge 19 of the ridging blade 18 encounters wheat stubble or straw, it can easily cut the wheat stubble and straw. Even if the cutting edge is not sharp or the soil is soft and the wheat stubble and straw cannot be cut off, because the cutting edge 19 of the ridging blade 18 is a straight line, the uncut wheat stubble and straw on the cutting edge are thrown obliquely forward under the action of centrifugal force and will not hang on the cutting edge. Moreover, the cut wheat stubble and straw are thrown obliquely forward, and a shallow ditch without wheat stubble and straw will be formed between the ridging blade 18 and the seeding colter foot 8. The seeding colter foot sows the seeds in the seed ditch. Even if the wheat stubble and straw thrown obliquely forward reach in front of the adjacent ridging blade, they will be cleaned by the subsequent arriving ridging blade and will not affect the seed ditch behind the ridging blade.

[0015] The ridging cutter disc 17 includes a cutter disc fixing sleeve 20 and a cutter disc body 21 located radially outside the cutter disc fixing sleeve 20. The cutter disc body 21 includes a left cutter disc 22 and a right cutter disc 23 spaced at a certain distance. Blade fixing holes 24 are provided on the left cutter disc 22 and the right cutter disc 23. Blade fixing bolts 25 are provided in the blade fixing holes 24. Two through holes 26 are provided on each ridging blade 15, and gaskets 27 are provided on different sides of the two through holes 26. The angle of the ridging blade can be changed by adjusting the thickness of the gasket 27 according to different soil moisture conditions, the amount of wheat stubble and straw, making it more convenient to use.

[0016] The cross-section of the rotating shaft 15 is a regular polygon, and the cross-section of the cutter disc fixing sleeve 20 is a polygon matching the cross-section of the rotating shaft. An adjusting positioning bolt 28 is provided on the cutter disc fixing sleeve 20. The position of the ridging cutter disc can be adjusted according to the spacing of the seeding colter feet, making it more convenient to use.

[0017] The ridge clearing blade 18 has a thickness of 0.5 cm to 1.5 cm, and can effectively clear the wheat stubble and straw in front of the sowing plow foot.

[0018] The other side of the ridge cleaning blade 18 is also provided with a blade 29. After using for a period of time, the ridge cleaning blade can be turned over front and back. When the blades on both sides are not sharp, the ridge cleaning blade can be removed and sharpened uniformly, which is more convenient to use.

[0019] An upper cover plate 30 and a front cover plate 31 are respectively arranged on the frame 2 above and in front of the ridge cleaning blade 18 to prevent the swirling wheat stubble, straw and dust from being blown up, thereby reducing environmental pollution.

[0020] A fertilizer box 32 is provided on the frame in front of the seed box 5, and a fertilizer plow foot 33 is provided at the lower end of the fertilizer box 32, so that fertilizer can be applied while sowing.

[0021] The technical solution adopted by the method of using the ridge-clearing corn precision seeder for corn sowing is: The method comprises the following steps: In the first step, the ridge clearing blade crushes and pushes away the wheat stubble in front of the sowing hoe. The seeder moves forward, and the power output shaft of the tractor or other traction power machinery drives the rotating shaft 15 to rotate through the reverse gear box 16. The ridge cleaning blade 18 rotates in the opposite direction to the direction of the soil-collecting plate 11. The ridge cleaning blade 18 with the blade 19 chops the wheat stubble and straw in front of the sowing plow foot 7 while rotating, and pushes the chopped wheat stubble and straw obliquely forward, and chops the hard soil surface in front of the sowing plow foot and pushes part of the soil obliquely forward, forming a shallow ditch without wheat stubble and straw in front of the sowing plow foot 7, and the chopped wheat stubble, straw and pushed soil are located between two adjacent sowing plow feet 7; Step 2: Sowing seeds The soil-combining plate 11 and the sowing plow foot 7 move forward, the pressing roller 12 drives the sowing gearbox 8 through the transmission mechanism 9, and the sowing gearbox 8 drives the sowing roller 10 to rotate through the sowing chain 35, sowing the seeds in the seed box into the soil through the seed guide tube 6 and the sowing plow foot 7, and the chopped wheat stubble, straw and the opened soil pass between two adjacent sowing plow feet; The third step is to combine soil The soil-covering tray 11 buries the soil around the seeds above the seeds; Step 4: Suppression The pressing roller 12 compacts the soil after moisture is mixed, and the compacted sowing channel forms a shallow groove on the surface.

[0022] The protection scope of the present invention is not limited to the above embodiments. As long as the structure is the same as or similar to that of the ridging corn precision planter of the present invention, or the sowing method is the same as or similar to this method, it falls within the protection scope of the present invention.

Claims

1. A ridge-clearing corn precision seeder, comprising a frame with a suspension frame at the front end, a sowing mechanism is arranged at the rear of the frame, the sowing mechanism comprises a sowing frame connected to the frame through a pin shaft, a seed box is arranged on the sowing frame, a sowing harrow foot connected to the seed box through a seed guide tube is arranged below the seed box, a moisture-combining shaft is arranged behind the sowing harrow foot, a moisture-combining disk is arranged on the moisture-combining shaft at a position corresponding to the sowing harrow foot, a pressing roller is arranged behind the moisture-combining disk, a sowing gearbox is arranged on the frame, the pressing roller is connected to the sowing gearbox through a transmission mechanism, the sowing roller is connected to the sowing gearbox through a sowing chain, a sowing depth adjustment rod is arranged above the moisture-combining disk, and a sowing depth adjustment handle is arranged on the sowing frame, characterized in that: A rotating shaft connected to the frame through a bearing is arranged on the frame in front of the sowing harrow foot, a reverse gear transmission box connected to the rotating shaft power is arranged on the frame, a ridge clearing knife disc is arranged on the rotating shaft in front of the corresponding sowing harrow foot, a plurality of ridge clearing blades are arranged on the ridge clearing knife disc along the circumferential direction of the ridge clearing knife disc, the ridge clearing blades intersect the plane where the ridge clearing knife disc is located at a certain angle, adjacent ridge clearing blades are respectively located on both sides of the ridge clearing knife disc and have the same angle with the plane where the ridge clearing knife disc is located, the rotation direction of the ridge clearing blade is opposite to the rotation direction of the moisture combining disc, and a blade is provided on one side of the forward direction of the ridge clearing blade.

2. The ridge-clearing corn precision seeder according to claim 1, characterized in that: The ridge cleaning cutter disc includes a cutter disc fixing sleeve and a cutter disc body located radially outside the cutter disc fixing sleeve, the cutter disc body includes a left cutter disc and a right cutter disc spaced a certain distance apart, blade fixing holes are provided on the left cutter disc and the right cutter disc, blade fixing bolts are provided in the blade fixing holes, two through holes are provided on each of the ridge cleaning blades, and gaskets are provided on different sides of the two through holes.

3. The ridge-clearing corn precision seeder according to claim 2, characterized in that: The cross section of the rotating shaft is a regular polygon, the cross section of the cutter disc fixing sleeve is a polygon matching the cross section of the rotating shaft, and an adjusting positioning bolt is arranged on the cutter disc fixing sleeve.

4. The ridge-clearing corn precision seeder according to claim 1, characterized in that: The thickness of the ridge clearing blade is 0.5 cm to 1.5 cm.

5. The ridge-clearing corn precision seeder according to claim 1, characterized in that: The other side of the ridge clearing blade is also provided with a cutting edge.

6. The ridge-clearing corn precision seeder according to claim 1, characterized in that: An upper cover plate and a front cover plate are respectively arranged on the frame above and in front of the ridge cleaning blade.

7. The ridge-clearing corn precision seeder according to claim 1, characterized in that: A fertilizer box is arranged on the frame in front of the seed box, and a fertilizer plow foot is arranged at the lower end of the fertilizer box.

8. A method for sowing using the ridge-clearing corn precision seeder according to claim 1, 2, 3, 4, 5, 6 or 7, characterized in that: The method comprises the following steps: In the first step, the ridge clearing blade crushes and pushes away the wheat stubble in front of the sowing hoe. The seeder moves forward, and the power output shaft of a tractor or other traction power machinery drives the rotating shaft to rotate through a reverse gear transmission. The rotation direction of the ridge cleaning blade is opposite to that of the soil combining disk. The ridge cleaning blade rotates with the rotating shaft, and the ridge cleaning blade chops the wheat stubble and straw right in front of the sowing plow foot and pushes the chopped wheat stubble and straw obliquely forward, and chops the hard soil surface right in front of the sowing plow foot and pushes part of the soil obliquely forward, forming a shallow ditch without wheat stubble and straw in front of the sowing plow foot, and the chopped wheat stubble, straw and pushed soil are located between two adjacent sowing plow feet; Step 2: Sowing seeds The soil-mixing plate and the sowing plow foot move forward, the pressing roller drives the sowing gearbox through the transmission mechanism, and the sowing gearbox drives the sowing roller to rotate through the sowing chain, sowing the seeds in the seed box into the soil through the seed guide tube and the sowing plow foot, and the chopped wheat stubble, straw and the opened soil pass between two adjacent sowing plow feet; The third step is to combine soil The soil tray buries the soil around the seeds above the seeds; Step 4: Suppression The pressing roller compacts the mixed soil, and the compacted sowing channel forms a shallow groove on the surface.

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