Rotary tillage-pressing integrated profiling wheel set of dry land wheat double-shaft seeder

Abstract

A rotary tillage-pressing integrated contour wheel of a dry land wheat double-shaft seeder belongs to the technical field of agricultural machinery, the contour wheel comprises a seeder comprising a traction assembly and a three-section type three-dimensional contour wheel set, the rotating speed of a pressing wheel is ahead of that of a rotary tillage shaft through a dynamic coupling technology to eliminate soil rebound, and efficiency loss caused by secondary operation is avoided; a three-section type three-dimensional profiling wheel set is combined with a pressure self-adaption adjusting mechanism, the pressing strength and the wheel face inclination angle can be dynamically adjusted, the device adapts to complex terrains and straw returning working conditions, and accurate pressing according to needs is achieved. The technology breaks through the function limitation of a traditional pressing device, is expected to solve the bottlenecks of uneven seedling emergence, resource waste and the like, and promotes efficient and precise upgrading of dry land wheat planting.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural machinery, in particular to a rotary tillage-suppression integrated profiling wheel set of a dryland wheat double-shaft planter. Background Art

[0002] Post-sowing wheat compaction is a key measure to ensure seed germination and seedling emergence quality. Its necessity stems from the problem of "hanging seeds and roots" caused by loose soil after rotary tillage in dryland. Compacting compacts the tillage layer, reduces porosity, promotes close seed-soil contact, improves soil moisture stability, and increases uniform seedling emergence by 8%-12%. Compacting also enhances soil thermal conductivity, reducing the risk of frost damage, promoting root development and tillering growth, and increasing the number of secondary roots by 1.2-2.1, significantly improving winter resilience. In plots where straw is returned to the field, compacting also fills soil cracks, stabilizes the root system, and mitigates water evaporation and fertility loss.

[0003] However, traditional compaction technology requires secondary operations due to power separation, resulting in delayed compaction and serious soil moisture loss; the compaction roller has fixed pressure and poor terrain adaptability, which can easily cause local insufficient compaction or excessive compaction; the low level of intelligence also limits its precise control capabilities, making it difficult to match complex soil moisture conditions and agronomic needs.

[0004] To address the challenges of delayed suppression and unadjustable pressure, there is an urgent need to develop an intelligent system for coordinated tillage and suppression. This invention uses power coupling technology to enable the suppression wheel to rotate ahead of the rotary tillage shaft to eliminate soil rebound and avoid efficiency losses caused by secondary operations. The design of a three-stage, three-dimensional contoured wheel assembly, combined with a pressure-adaptive adjustment mechanism, can dynamically adjust the suppression intensity and wheel surface inclination angle to adapt to complex terrain and straw return conditions, achieving on-demand precise suppression. This technology breaks through the functional limitations of traditional suppression devices and is expected to resolve bottlenecks such as uneven seedling emergence and resource waste, promoting the upgrade of dryland wheat cultivation to higher efficiency and greater precision.

[0005] In view of this, the present invention proposes a rotary tillage-suppression integrated contouring wheel set for a dryland wheat dual-shaft seeder to solve the above technical problems. Summary of the Invention

[0006] In order to address the deficiencies of the prior art, the present invention provides a rotary tillage-suppression integrated contouring wheel set for a dryland wheat dual-axis seeder; thereby solving the problems of traditional suppression devices resulting in severe soil moisture loss and uneven seedling emergence due to power separation, delayed suppression, unadjustable pressure, and poor terrain adaptability.

[0007] The technical solution adopted by the present invention to solve the technical problem is a rotary tillage-suppression integrated profiling wheel set of a dryland wheat double-shaft seeder, a seeder; A profiling wheel group is provided at the rear of the seeder in the direction of travel for suppressing the seeds and fertilizers. The seeder is provided with a power compartment, and a transmission assembly is provided between the profiling wheel group and the power compartment; The contoured wheel set is a segmented type, comprising: The front covering wheel is used to initially level the soil and guide the direction of compaction; The middle section pressing wheel adopts a multi-chamber structure, and a hydraulic adjustment component is installed inside the pressing wheel to control the pressing strength. The pressing wheel and the covering wheel are arranged in a staggered manner; The rear balancing wheel has a double-conical structure and is used to balance the soil rebound pressure in the wheat sowing area and for trenching on both sides of the sowing area.

[0008] Beneficial effects of the present invention:

[0009] 1. The contoured wheel group of the present invention sequentially covers the soil on the upper layer of seed fertilizer in the gully, compacts the soil, and digs the lateral sides of the sowing area during movement. The front covering wheel can realize the leveling of the wheat sowing area, and at the same time, can refine part of the soil and backfill it above the sowing layer, thereby improving the uniformity of soil density during the compaction operation. In addition, the finely divided soil can also form a buffer layer between the seeds and the soil clods, thereby avoiding the squeezing and damage of the seeds caused by the toughness of the soil clods themselves during the subsequent compaction process, thereby improving the integrity of the seeds themselves and the subsequent survival rate.

[0010] 2. The middle section pressing wheel in the present invention realizes precise pressing on demand according to the changes in soil moisture and the pressing strength requirements through the adjustability of its own wheel surface inclination angle. Through its own advanced speed and outer contour surface curvature, it reduces the soil deviation of the seed layer while maintaining sufficient pressing strength.

[0011] 3. The rear balancing wheel in the present invention is used for side ditching after positive pressure in the seed area, and is used for flow during subsequent water and fertilizer irrigation operations to avoid direct erosion of the sowing area by water flow, thereby improving the stability of the seed growth environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention will be further described below with reference to the accompanying drawings and examples.

[0013] Figure 1 This is a schematic diagram of the first overall connection structure of the present invention; Figure 2 This is a schematic diagram of the second overall connection structure of the present invention; Figure 3 for Figure 2 Side view in; Figure 4 Schematic diagram of the positional relationship between the sowing part and the covering wheel in the present invention; Figure 5 for Figure 4A is an enlarged schematic diagram; Figure 6 Schematic diagram of the layout of the contoured wheel set in the present invention; Figure 7 Schematic diagram of the positional relationship between the fertilizer pipe, the covering wheel and the pressing wheel in the present invention; Figure 8 It is a partial cross-sectional view of the covering wheel of the present invention; Figure 9 for Figure 8 Enlarged view of point B in FIG. Figure 10 for Figure 8 Enlarged view of point C in the figure; Figure 11 for Figure 8 Enlarged view of point D in .

[0014] In the figure: 1. seeder; 2. rotary tillage unit; 3. sowing unit; 31. seed and fertilizer pipe; 11. power compartment; 12. transmission assembly; 4. contoured wheel group; 5. covering wheel; 6. pressing wheel; 7. balancing wheel; 8. belt drive; 51. first axis; 52. wide-mouth groove; 53. narrow-mouth groove; 54. cutting disc; 55. cutting plate; 56. sanding disc; 57. tooth plate; 58. spiral tooth groove; 61. second axis; 13. semi-annular cover; 14. skirt strip; 15. rubber plate; 60. rotating shaft; 62. pressing plate; 63. contact part; 64. adjustment part; 65. curved groove; 66. diaphragm; 67. drag plate; 68. compression spring; 71. third axis; 72. balance bar. DETAILED DESCRIPTION

[0015] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0016] The embodiment of the present invention solves the problems of traditional pressing devices causing severe soil moisture loss and uneven seedling emergence due to power separation, such as delayed pressing, unadjustable pressure and poor terrain adaptability, by providing a rotary tillage-pressing integrated contouring wheel group for a dryland wheat dual-shaft planter.

[0017] The terms used in the present invention are only for the purpose of describing specific embodiments and are not intended to limit the embodiments of the present invention. The singular forms "a", "an", "the" and "the" used in the embodiments of the present invention and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise.

[0018] In the present invention, for the convenience of description, the walking direction of the seeder 1 is set to the Y direction, the axial direction between the walking wheels of the seeder 1 is the X direction, and the direction perpendicular to the XY plane is the Z direction. Therefore, the front section, middle section and rear section in the text are arranged in sequence along the Y direction.

[0019] Example 1:

[0020] like Figures 1 to 4 As shown, a preferred embodiment of the present invention proposes a rotary tillage-suppression integrated profiling wheel group of a dryland wheat dual-axis seeder, including a seeder 1 containing a traction assembly, a rotary tillage portion 2 for fine soil tillage is provided at the front portion of the seeder 1 in the direction of travel, a sowing portion 3 for seed and fertilizer sowing is provided in the direction of travel of the seeder 1, a seed and fertilizer pipe 31 with adjustable sowing depth is provided in the sowing portion 3, a profiling wheel group 4 for seed and fertilizer suppression is provided at the rear portion of the seeder 1 in the direction of travel, a power compartment 11 including a motor and a gear group is provided on the seeder 1 for driving the rotary tillage portion 2 to operate, and a transmission assembly 12 is provided between the profiling wheel group 4 and the power compartment 11.

[0021] The contoured wheel set 4 is a three-section three-dimensional contoured wheel set 4, comprising: The front covering wheel 5 is made of flexible material, which can adapt to the undulations of the ground, initially level the soil and guide the direction of the soil pressing; The middle section pressing wheel 6 adopts a multi-chamber structure and is equipped with a hydraulic adjustment component to control the pressing strength. The pressing strength is controlled at 0.3-0.5 kg / cm², approximately 300-500 kPa. The pressure is adjusted in real time according to the soil moisture conditions. The pressing wheel 6 and the covering wheel 5 are arranged in a staggered manner. The rear balancing wheel 7 has a double-conical structure and is made of the same flexible material as the front covering wheel 5. It is used to balance the soil rebound pressure in the wheat sowing area and to open trenches on both sides of the sowing area.

[0022] Through the work of the traction component, the seeder 1 is connected to the existing agricultural machinery and travels in the field. The soil is finely tilled by the rotary tillage part 2, and the sowing part 3 then performs furrowing and sowing operations. The power compartment 11 is used to provide active driving force for the rotary tillage part 2. At the same time, the planetary differential power coupler in the power compartment 11 receives the power transmitted by the rotary tillage blade shaft and transmits the power to the contour wheel group 4 through the transmission component 12 (in actual use, the transmission component 12 is equipped with a protective cover (not shown in the figure) on the outside, with a thickness of, for example, 1 to 2 mm, and a material such as engineering plastic, such as polycarbonate (PC) or polyetheretherketone, or a single substance or alloy of aluminum or iron), so as to achieve a 1.2:1 overspeed ratio in the speed of the contour wheel group 4, and complete the compaction operation before the soil rebounds.

[0023] The three-stage contoured wheel set 4 sequentially covers the upper layer of fertilizer in the gully, compacts the soil, and digs trenches on the sides of the sowing area during movement. The digged trenches are used as subsequent water and fertilizer flow channels to avoid direct scouring of the sowing area.

[0024] Further, such as Figures 1 to 6As shown, the transmission assembly 12 is used for power transmission between the middle section pressing wheel 6 and the power compartment 11, a belt transmission assembly 8 is provided between the middle section pressing wheel 6 and the front end covering wheel 5, and the rear section balancing wheel 7 adopts a non-powered setting.

[0025] Further, such as Figures 6 to 9 As shown, a first shaft body 51 is installed through the central axis position of the covering wheel 5, and the end of the first shaft body 51 is fixedly connected to the seed drill 1. There are several covering wheels 5, which are equidistantly arranged according to the axial direction of the first shaft body 51, and the covering wheels 5 and the seed and fertilizer falling pipe under the sowing part 3 are staggered. The covering wheel 5 adopts an outward-protruding double-conical hollow drum structure, and a gradual rotation gap is set between the covering wheel 5 and the first shaft body 51. The edge position of the covering wheel 5 is circumferentially provided with alternating wide-mouth grooves 52 and narrow-mouth grooves 53. The narrow-mouth grooves 53 are used to adapt to pressure deformation, and the wide-mouth grooves 52 are used for scooping soil.

[0026] In actual work, the covering wheel 5 rotates continuously under the power transmission of the belt drive assembly 8. The covering wheel 5 and the seed fertilizer pipe 31 are staggered. The seed fertilizer pipe 31 completes the furrowing process at the same time during the sowing process, and the covering wheel 5 walks on the soil ridges on both sides of the seed gully after sowing. The covering wheel 5 is made of flexible material and has a curved drum-shaped structure on the outer edge. Its drum-shaped volume gradually increases and expands to both sides during the contact with the soil. At the same time, the loose raised soil will also be squeezed by the covering wheel 5 and collapse and roll toward the low-point seed sowing gully position, thereby realizing the surface covering operation of the seed fertilizer. In addition, the covering wheel 5 rotates continuously by itself. When the wide-mouth groove 52 is turned towards the soil, its forward walking action can scoop up part of the raised soil and transfer it to the inside of its bulging cavity, so that part of the soil is quickly squeezed and collided in the limited cavity inside the covering wheel 5, thereby achieving further fragmentation. The narrow-mouth groove 53 provided can adapt to the change of the outer edge contour of the covering wheel 5 during the extrusion deformation process, and provide reset deformation for the deformation of the covering wheel 5 through its own toughness. In addition, the evenly opened narrow-mouth grooves 53 scrape the soil layer on its travel path in turn during the rotation process, further causing the soil in the soil ridge area to be continuously fragmented, thereby improving the rolling flow compliance of the soil to the gully area where the seeds are located.

[0027] Further, such as Figures 8 to 10 As shown, a number of cutting discs 54 with sharp edges are fixedly mounted on the first shaft 51. The cutting discs 54 are all located at the center of the covering wheel 5, and the cutting discs 54 adopt a double-conical solid drum structure similar to the structure of the covering wheel 5. A cutting plate 55 for receiving and diverting soil is horizontally mounted in the middle of the cutting disc 54, and a number of sand pieces 56 are circumferentially arranged on the inner wall of the covering wheel 5 facing the cutting plate 55.

[0028] During operation, the first shaft 51 does not rotate, and the covering wheel 5 rotates continuously. After the covering wheel 5 transfers part of the soil into its inner cavity, the soil is gradually dispersed from top to bottom and from the middle to both sides under the separation and receiving action of the cutting disc 54 and the cutting plate 55. At this time, the sand pieces 56 located on the inner wall of the covering wheel 5 come into contact with the soil blocks and grind them, further improving the degree of soil fragmentation and efficiency in its inner cavity.

[0029] Further, such as Figure 8 and Figure 10 As shown, the first shaft 51 is provided with a plurality of settlement areas inclined toward its axis, and the settlement areas are respectively located on both sides of the cutting disc 54, and the settlement area is located in the installation gap between two adjacent covering wheels 5. The two adjacent covering wheels 5 are fixedly connected by a plurality of circumferentially arranged tooth plates 57, and one end of the tooth plate 57 facing the axis direction of the first shaft 51 is adapted to the inclined surface of the settlement area. A hollow arrangement is provided between two adjacent tooth plates 57, and a spiral tooth groove 58 is provided at the settlement area position for increasing friction and contact surface.

[0030] During operation, the sedimentation area is located directly above the gully where the seeds are located. With the guidance of the conical surface of the cutting disc 54 itself, part of the scooped soil slides to both sides to the sedimentation area and comes into direct contact with the continuously rotating tooth plate 57. The tooth plate 57 is used to grind and crush the soil clods or particles for the second time. Subsequently, the crushed soil falls from the hollow part between the two tooth plates 57 to complete the secondary covering of the seed area. Previously, the initial covering operation of the upper layer of the seeds with soil clods has been achieved through the squeezing action of the covering wheel 5, and the crushed soil particles falling from the sedimentation area can complete the filling of the gaps in the previous covering layer of soil clods. , and improve the soil flatness in the area where the seeds are located, and improve the uniformity of soil density during subsequent compaction operations. In addition, the finely crushed soil can also form a buffer layer between the seeds and the soil blocks, and in the subsequent compaction process, it can avoid the soil blocks' own toughness from squeezing and damaging the seeds, thereby improving the integrity of the seeds themselves and the subsequent survival rate. The spiral tooth grooves 58 are used to cooperate with the tooth plates 57 to improve the soil crushing efficiency and degree of soil crushing. In addition, the spiral tooth grooves 58 are arranged in a spiral manner. While improving the soil crushing efficiency, they can use their own spiral characteristics to introduce and discharge the adhered soil in a circulating flow posture, thereby avoiding accumulation or blockage.

[0031] Further, such as Figure 6 and Figure 7As shown in the figure, the pressing wheel 6 includes two sets of wheel bodies with different diameters for adjusting the depth of the sowing layer to adapt to the seed and fertilizer tube 31. The two sets of wheel bodies are sequentially and alternately installed on the second shaft body 61 according to the arrangement mode of the seed and fertilizer tube 31. The second shaft body 61 is connected to the power bin 11 through a transmission component 12 (the transmission component 12 is realized by a belt or a chain or a shaft. Only the chain drive is shown in the attached drawings of the specification of the present invention, which does not mean that the present invention only protects the chain drive mode).

[0032] In the present invention, the seed and fertilizer tube 31 can adjust its own sowing depth according to the sowing requirements and soil moisture conditions. The provided pressing wheel 6 adapts to different pressing densities and pressing pressures according to the different sowing depths of wheat seeds, so as to promote the survival rate of the subsequent growth and development of wheat.

[0033] Furthermore, as shown in Figure 4 、 Figure 5 and Figure 8 a semi-ring cover 13 is fixedly installed on the seeder 1. The pressing wheel 6 is located inside the semi-ring cover 13. A skirt strip 14 is provided on one side of the semi-ring cover 13 facing the soil covering wheel 5. The arc surface of the narrow groove 53 on the soil covering wheel 5 contacts the skirt strip 14 during rotation. A rubber plate 15 made of a flexible material is provided on one side of the semi-ring cover 13 away from the soil covering wheel 5. The lower part of the rubber plate 15 is in sliding contact with the soil.

[0034] The semi-ring cover 13 is used for protecting the pressing wheel 6 and cleaning its surface. In addition, through the elastic contact between the skirt strip 14 and the soil covering wheel 5, the soil on the outer contour of the soil covering wheel 5 is cleaned. The rubber plate 15 is vertically suspended behind the walking path of the pressing wheel 6 and is used for blocking and leveling the flying soil.

[0035] Embodiment 2:

[0036] As shown in Figure 7 、 Figure 8 and Figure 11 several pressing pieces 62 with an open side in a "C" shape are rotatably installed around the wheel body of the pressing wheel 6 through a rotating shaft 60. The direction of the pressing piece 62 close to the outer edge of the pressing wheel 6 is the soil contact part 63, and the direction close to the axis of the pressing wheel 6 is the attitude adjustment part 64. The hydraulic adjustment component is located inside the pressing wheel 6 and is connected and transmitted with the adjustment part 64. A curved groove 65 recessed inward is provided on the outer arc surface of the contact part 63. The position of the curved groove 65 corresponds to the position of the seed and fertilizer tube 31. A rubber diaphragm 66 is installed inside the pressing wheel 6. The diaphragm 66 elastically bends and abuts against the inner side of the open end of the pressing piece 62. During the rotating pressing process, the curved groove 65 can make the pressing area present a curved shape with a raised middle and a sunken edge, avoiding the large soil from swaying and deflecting under the extrusion force, causing excessive extrusion of the seeds or pushing them out, and improving the staying stability of the position where the seeds are located after sowing.

[0037] In the initial position, the pressing plate 62 is in the first working position, and the contour of its contact portion 63 is consistent with the contour of the outer arc surface of the pressing wheel 6. At this time, the soil is pressed by relying on the advance rotation and downward pressure of the pressing wheel 6. When the soil moisture condition changes or the pressing strength needs to be changed, the hydraulic adjustment component is used to drive the pressing plate 62 to deflect, so that the inclination angle of the contact portion 63 changes and tilts toward the outside of the pressing wheel 6. At this time, the pressing circular path increases, and the pressing pressure increases, thereby realizing adaptive adjustment of the pressing strength and wheel surface inclination angle. The rotation speed of the pressing wheel 6 leads the rotary tillage shaft to further eliminate soil rebound and improve the pressing stability. The diaphragm 66 provided uses its own elastic deformation ability to compensate for the gap angle after the pressing plate 62 is tilted and deflected in real time, thereby preventing soil intrusion.

[0038] Further, such as Figure 4 、 Figure 5 As shown, the two ends of the second shaft 61 are respectively installed with drag plates 67 by means of rotational cooperation, and a compression spring 68 is arranged between the drag plate 67 and the seed drill 1. The balance wheel 7 is installed on the free end of the drag plate 67 through the third shaft 71. The outer wall of the balance wheel 7 is evenly provided with sunken grooves for increasing friction in a spiral arrangement. The two ends of the balance wheel 7 expand outward, and the distance between the expansion parts at both ends is greater than the sowing width of the sowing part 3. The third shaft 71 is provided with ribs that are adapted to the inclined expansion surface of the balance wheel 7 and have a deformation gap reserved. A number of balance rods 72 that penetrate the balance wheel 7 are circumferentially installed on the rib in a direction parallel to the axis of the third shaft 71.

[0039] After the suppression is completed, the elastic force of the compression spring 68 can provide sufficient downward pressure for the third shaft 71, thereby making the wheel body of the balance wheel 7 fit tightly with the soil. The spirally arranged inward groove can make the balance wheel 7 rotate during the movement through the friction resistance when in contact with the soil. The two ends of the balance wheel 7 expand outward, and the contact pressure between it and the soil is stronger than the contact pressure in the middle. As the balance wheel 7 is squeezed and deformed, the soil in contact with it also collapses and is separated downward under the action of pressure, thereby achieving furrowing on both sides of the seed sowing area. In addition, the expanded ribs can provide support for it on the inside of the balance wheel 7, so that the collapse deformation of the balance wheel 7 is kept within a predetermined range. Combined with the use of the compression spring 68, the contact pressure between the balance wheel 7 and the soil is within a controllable range, further eliminating the rebound of the soil. The through-type balance rod 72 rolls over the sowing area, and through the stability of its own structure, it firmly blocks the soil inside the area where the balance wheel 7 rolls over, thereby improving the flatness of the strips in the furrowing area and the degree of range limitation.

[0040] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above-described embodiments. The above-described embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. The rotary tillage and suppression integrated contour wheel set of the dryland wheat double-shaft planter is characterized by: include: planter; A profiling wheel group is provided at the rear of the seeder in the direction of travel for pressing the seeds and fertilizers. The seeder is provided with a power compartment, and a transmission assembly is provided between the profiling wheel group and the power compartment; The contoured wheel set is a segmented type, comprising: The front covering wheel is used to initially level the soil and guide the direction of compaction; The middle section pressing wheel adopts a multi-chamber structure, and a hydraulic adjustment component is installed inside the pressing wheel to control the pressing strength. The pressing wheel and the covering wheel are arranged in a staggered manner; The rear balancing wheel has a double-conical structure and is used to balance the soil rebound pressure in the wheat sowing area and for trenching on both sides of the sowing area.

2. The rotary tillage and suppression integrated contouring wheel set of the dryland wheat dual-shaft planter according to claim 1, characterized in that: The transmission assembly is used for power transmission between the middle section pressing wheel and the power compartment, a belt transmission assembly is provided between the middle section pressing wheel and the front end covering wheel, and the rear section balancing wheel adopts a non-powered setting; and / or The wheel surfaces of the covering wheel and the balancing wheel are made of flexible materials.

3. The rotary tillage and suppression integrated contouring wheel set of the dryland wheat dual-shaft planter according to claim 1, characterized in that: The central axis of the soil-covering wheel is penetrated by a first shaft body. Ten or more soil-covering wheels are arranged equidistantly according to the axis direction of the first shaft body, and the soil-covering wheels are staggered with the seed and fertilizer dropping pipes below the sowing part.

4. The rotary tillage and suppression integrated contouring wheel assembly of the dryland wheat dual-shaft planter according to claim 3, characterized in that: The covering wheel adopts a double-conical hollow drum structure protruding outward, and a gradually changing rotation gap is provided between the covering wheel and the first shaft; and / or The edge of the covering wheel is circumferentially provided with alternately arranged wide-mouth grooves and narrow-mouth grooves. The narrow-mouth grooves are used to adapt to pressure deformation, and the wide-mouth grooves are used for scooping soil. The wide-mouth grooves are arranged in at least three groups.

5. The rotary tillage-suppression integrated contouring wheel assembly of the dryland wheat dual-shaft planter according to any one of claims 1 to 4, characterized in that: A plurality of cutting discs with sharp edges are fixedly mounted on the first shaft, a cutting plate for receiving and diverting soil is horizontally mounted in the middle of the cutting disc, and a plurality of sand pieces are circumferentially arranged on the inner wall of the covering wheel facing the cutting plate.

6. The rotary tillage and suppression integrated contouring wheel assembly of the dryland wheat dual-shaft planter according to claim 5, characterized in that: The first shaft is provided with a plurality of settling areas inclined toward its axis, and two adjacent covering wheels are fixedly connected by a plurality of circumferentially arranged tooth plates, with a hollow space between the adjacent tooth plates; The settling area is provided with spiral tooth grooves for increasing friction and contact surface.

7. The rotary tillage and suppression integrated contouring wheel assembly of the dryland wheat dual-shaft planter according to claim 1, characterized in that: The pressing wheel includes two groups of wheel bodies with different diameters for adjusting the depth of the sowing layer to adapt to the seed and fertilizer pipes. The two groups of wheel bodies are installed on the second shaft body in sequence according to the arrangement of the seed and fertilizer pipes. The second shaft body is connected to the power compartment through a transmission component, and the transmission component is a belt, chain or shaft to realize transmission.

8. The rotary tillage-suppression integrated contouring wheel assembly of the dryland wheat dual-shaft planter according to any one of claims 1 to 4, characterized in that: The wheel body of the suppressing wheel is rotatably mounted with suppressing plates around it via a rotating shaft; The soil contact part of the pressing piece is close to the outer edge of the pressing wheel, and the posture adjustment part is close to the axis of the pressing wheel. The hydraulic adjustment component is located inside the pressing wheel, and the hydraulic adjustment component is connected to the adjustment part for transmission.

9. The rotary tillage and compaction integrated contouring wheel assembly of the dryland wheat dual-shaft planter according to claim 8, characterized in that: The outer arc surface of the contact portion is provided with a curved groove recessed inwards, the position of the curved groove corresponds to the position of the seed and fertilizer pipe, and a rubber diaphragm is installed in the pressing wheel.

10. The rotary tillage-suppression integrated contouring wheel assembly of the dryland wheat dual-shaft planter according to claim 7, characterized in that: The two ends of the second shaft are respectively mounted with drag plates in a rotationally matched manner, an elastic member is provided between the drag plate and the seeder, and the balance wheel is mounted on the free end of the drag plate through the third shaft.

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