Stubble cleaning, soil loosening, sowing and pressing mechanism for post-wheat multiple cropping

Abstract

The stubble cleaning, soil loosening, sowing and pressing mechanism comprises a machine frame, a stubble cleaning and soil loosening assembly, a conveying assembly, a smashing and spreading assembly, a pressing assembly and a sowing assembly, and is characterized in that the machine frame comprises a supporting frame, a connecting frame is fixed to one end of the upper side of the supporting frame, and a lead screw groove is formed in the middle of the supporting frame; the middle of the upper side of the supporting frame is fixedly connected with a square plate. The seeding assembly comprises a row spacing adjusting motor, the row spacing adjusting motor is fixedly connected to one side of the connecting frame, the two ends of the inner side of a screw rod groove are movably connected with the ends of a two-way screw rod, a rotating shaft of the row spacing adjusting motor is fixedly connected with the ends of the two-way screw rod, and the two-way screw rod is provided with two sections of threads with opposite spiral directions; two sliding plates are arranged in the lead screw groove and are in threaded connection with the two ends of the two-way lead screw correspondingly, and the upper ends of the two sliding plates are fixedly connected with vertical plates correspondingly. According to the invention, various crops can be sown after wheat is harvested.

Description

Technical Field

[0001] The present invention relates to the technical field of wheat flour processing and grinding, and particularly relates to a stubble cleaning, soil loosening, sowing and pressing mechanism for post-wheat multiple cropping. Background Art

[0002] The main crops suitable for planting after wheat harvest are corn and soybean. These two crops have high economic benefits and adaptability when planted after wheat harvest. Taking soybean as an example, soybeans grow relatively tall with lush leaves and require a large space. To ensure sufficient growth space and ventilation and light transmission conditions between soybean plants and avoid mutual shading and competition between plants, the row spacing of soybean planting is relatively large. The open space between soybean rows is also conducive to planting some short-growing crops, such as baby Chinese cabbage, whose harvesting period is usually 45 to 65 days and can be harvested before the soybean plants grow tall, which not only does not affect the growth of soybeans but also improves land utilization rate and economic benefits.

[0003] There are the following problems in intercropping soybeans and baby Chinese cabbage after wheat harvest:

[0004] 1. After wheat harvest, there will be wheat stubbles on the land, and the wheat stubbles need to be removed before sowing to avoid affecting the growth of later crops.

[0005] 2. Soybean seeds are larger, while baby Chinese cabbage seeds are smaller, and there is currently no seeder that can sow soybeans and baby Chinese cabbage simultaneously.

[0006] Therefore, it is necessary to provide a stubble cleaning, soil loosening, sowing and pressing mechanism for post-wheat multiple cropping to solve the above technical problems. Summary of the Invention

[0007] The purpose of the present invention is to solve the deficiencies existing in the prior art and propose a stubble cleaning, soil loosening, sowing and pressing mechanism for post-wheat multiple cropping.

[0008] To achieve the above purpose, the present invention adopts the following technical solutions:

[0009] A stubble cleaning, soil loosening, sowing and pressing mechanism for post-wheat multiple cropping, comprising a frame, a stubble cleaning and soil loosening component, a conveying component, a crushing and spreading component, a pressing component and a sowing component, characterized in that:

[0010] The frame includes a support frame, one end of the upper side of the support frame is fixedly connected with a connecting frame, a lead screw groove is provided in the middle of the support frame, and a square plate is fixedly connected to the middle of the upper side of the support frame;

[0011] The seeding assembly includes a row spacing adjustment motor, which is fixedly connected to one side of the connecting frame. The two ends of the inner side of the lead screw groove are movably connected to the ends of a bidirectional lead screw. The rotating shaft of the row spacing adjustment motor is fixedly connected to the end of the bidirectional lead screw. The bidirectional lead screw is provided with two threads with opposite spiral directions. There are two sliding plates in the lead screw groove. The two sliding plates are respectively threadedly connected to the two ends of the bidirectional lead screw. The upper ends of the two sliding plates are respectively fixedly connected to vertical plates. The upper ends of the vertical plates are fixedly connected to a storage hopper. The storage hopper is provided with two storage cavities. The lower side of the storage hopper is fixedly communicated with the upper part of a sleeve. The lower side of the sleeve is fixedly communicated with a collecting hopper. The lower side of the collecting hopper is fixedly communicated with a spline shaft tube;

[0012] The spline shaft tube is slidably connected to a spline sleeve. The lower end of the spline sleeve is fixedly connected to a ditching plow head. One ends of two L-shaped connecting rods are respectively hinged to both sides of the upper side of the spline sleeve. The other ends of each pair of L-shaped connecting rods are respectively hinged to one side of a slider. The slider is slidably connected in a linear chute. The linear chute is arranged in the middle of the vertical plate. A screw rod is movably connected in the linear chute. The slider is threadedly connected to the corresponding screw rod. One end of the screw rod is fixedly connected to a seeding adjustment motor, and the seeding adjustment motor is fixedly connected to one side of the vertical plate;

[0013] One side of each slider is respectively hinged to a connecting rod. The other end of the connecting rod is hinged to an annular member. One end of a blanking roller is movably connected inside the annular member. The end of the blanking roller close to the annular member is provided with small seed grooves arranged in a circumferential pattern. The other end of the blanking roller is provided with large seed grooves arranged in a circumferential pattern. A spline hole is provided at the center of the blanking roller. A spline shaft passes through and is slidably connected to the spline hole. The two ends of the spline shaft are respectively movably connected to square plates. One end of the spline shaft is fixedly connected to the rotating shaft of a seeding power motor, and the seeding power motor is fixedly connected to one side of the square plate.

[0014] Preferably, the stubble cleaning and soil loosening assembly includes a first synchronous pulley, which is connected to a second synchronous pulley through a first synchronous belt. The second synchronous pulley is fixedly connected to one end of a bidirectional spiral blade shaft one. The bidirectional spiral blade shaft one is provided with spiral blades with opposite spiral directions at both ends. The bidirectional spiral blade shaft one is arranged in a bucket. The two ends of the bidirectional spiral blade shaft one are movably connected to the two ends of the bucket. One side of the bucket is open and the lower side is fixedly connected to a shovel plate. A group of first through grooves are provided on the lower side of the bucket. The bucket is fixedly connected to one end of the support frame.

[0015] Preferably, the conveying assembly includes a synchronous wheel three, the synchronous wheel three is connected to a synchronous wheel four through a synchronous belt two, the synchronous wheel four is fixedly connected to one end of a spiral blade shaft, the spiral blade shaft is arranged in a conveying pipe, the upper end of the spiral blade shaft is movably connected to the upper end of the conveying pipe, the conveying pipe passes through and is fixedly connected to the support frame, the lower end of the conveying pipe is fixedly connected to the middle part of the lower side of the bucket, one side of the upper end of the conveying pipe is fixedly connected to a discharge pipe, and the lower end of the discharge pipe is fixedly connected to the middle part of the spreading barrel.

[0016] Preferably, the crushing and spreading assembly includes the spreading barrel, and a bidirectional spiral blade shaft 2 is arranged in the spreading barrel, and the bidirectional spiral blade shaft 2 is provided with spiral blades with opposite spiral directions at both ends, and the two ends of the bidirectional spiral blade shaft 2 are respectively movably connected to the middle parts of the two ends of the spreading barrel, one side of the spreading barrel is fixedly connected to the main motor, the rotating shaft of the main motor is fixedly connected to one end of the bidirectional spiral blade shaft 2, and the other end of the bidirectional spiral blade shaft 2 is fixedly connected to the center of the synchronous wheel 1.

[0017] Preferably, a group of connecting blocks are fixedly connected to the middle part of the inner side of the spreading barrel, and the connecting block is fixedly connected to the gear box. The central axis of the two-way spiral blade shaft passes through and moves in the middle part of the gear box. The central axis of the two-way spiral blade shaft passes through and is fixedly connected to the center of bevel gear one. The bevel gear one is respectively engaged with bevel gear two and bevel gear three. The central axis of bevel gear two passes through and is movably connected to the gear box. The central axis of bevel gear two is fixedly connected to a group of evenly arranged blades, and the blades are arranged in the discharge pipe. The central axis of bevel gear three passes through and is movably connected to the gear box and the spreading barrel. The central axis of bevel gear three is fixedly connected to the center of synchronous wheel three. A group of through grooves two are provided on the lower side of the spreading barrel.

[0018] Preferably, the suppression assembly includes two connecting plates, and the two sides of the rear end of the support frame are hingedly connected to the connecting plates respectively, and the lower ends of the two connecting plates are movably connected to the central axes of both ends of the rolling shaft respectively.

[0019] Preferably, the lower sides of the two slide plates are respectively fixedly connected to the vertical plates, and the lower ends of the two vertical plates are respectively fixedly connected to two soil covering plowshares, and each pair of the soil covering plowshares is arranged in an eight-shaped shape.

[0020] Compared with the related art, the beneficial effects of the present invention are:

[0021] The sowing component can realize the switching of three sowing modes: large-grain seed sowing mode, small-grain seed sowing mode, and stop sowing mode. During the switching, the furrowing plow can move up or down at the same time, so that the depth of the planting furrow plowed by the furrowing plow meets the planting requirements of the seeds, and the planting row spacing can also be adjusted;

[0022] The stubble clearing and soil loosening component can shovel up the wheat stubble left on the land after wheat harvest and the soil of the stubble layer into the bucket, so that the soil falls from the first trough to the ground, realizing stubble clearing and soil loosening to avoid affecting the growth of later crops; two pairs of soil covering plowshares can cover the seeds in the planting furrow with soil; the wheat stubble is crushed by the conveying component and the crushing and spreading component, and the crushed wheat stubble falls from the second trough to the soil after planting. The crushed wheat stubble covers the crushed wheat stubble to enhance the soil's heat preservation and moisture retention ability and improve the germination rate. The rolling shaft rolls the soil after planting and the crushed wheat stubble covering the soil. Rolling can compact the soil, reduce the phenomenon of hanging seeds and hanging roots, ensure close contact between seeds and soil, and improve the germination rate and uniformity of seedling emergence. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A three-dimensional schematic diagram of the present invention Figure 1 .

[0024] Figure 2 A three-dimensional schematic diagram of the present invention Figure 2 .

[0025] Figure 3 Schematic diagram of the connection structure of some parts of the present invention Figure 1 .

[0026] Figure 4 Schematic diagram of the connection structure of some parts of the present invention Figure 2 .

[0027] Figure 5 Schematic diagram of the connection structure of some parts of the present invention. Schematic diagram of the connection structure of the bucket, the conveying pipe and the spreading tube after cutting. Figure 1 .

[0028] Figure 6 Schematic diagram of the connection structure of some parts of the present invention. Schematic diagram of the connection structure of the bucket, the conveying pipe and the spreading tube after cutting. Figure 2 .

[0029] Figure 7 Schematic diagram of the connection structure of some parts of the present invention Figure 3 .

[0030] Figure 8 Schematic diagram of the connection structure of the sowing assembly of the present invention Figure 1 .

[0031] Figure 9 Schematic diagram of the connection structure of the sowing assembly of the present invention Figure 2 .

[0032] Figure 10 The schematic diagram of the connection structure of the material storage cavity, sleeve and collecting hopper after cutting is shown in FIG. Figure 1 .

[0033] Figure 11 Schematic diagram of the connection structure of some parts of the present invention Figure 4 。

[0034] Figure 12 Schematic diagram of the connection structure after sectioning of the material storage cavity, sleeve and aggregate hopper of the present invention Figure 2 。

[0035] Figure 13 Front view of the connection structure after sectioning of the material storage cavity, sleeve and aggregate hopper of the present invention.

[0036] In the figure:

[0037] 1: Frame, 11: Connecting frame, 12: Support frame, 13: Square plate, 14: Lead screw groove;

[0038] 2: Stubble clearing and soil loosening assembly, 21: Synchronous pulley 1, 22: Synchronous belt 1, 23: Synchronous pulley 2, 24: Double - helix blade shaft 1, 25: Bucket, 26: Through - slot 1, 27: Shovel plate;

[0039] 3: Conveying assembly, 31: Synchronous pulley 3, 32: Synchronous belt 2, 33: Synchronous pulley 4, 34: Helical blade shaft, 35: Conveying pipe, 36: Discharge pipe;

[0040] 4: Crushing and spreading assembly, 41: Main motor, 42: Spreading cylinder, 43: Connecting block, 44: Gear box, 45: Double - helix blade shaft 2, 46: Through - slot 2, 47: Bevel gear 1, 48: Bevel gear 2, 49: Bevel gear 3, 410: Blade.

[0041] 5: Pressing assembly, 51: Connecting plate, 52: Rolling shaft;

[0042] 6: Sowing assembly, 61: Row spacing adjustment motor, 62: Double - lead screw, 63: Slide plate, 64: Vertical plate, 65: Sowing power motor, 66: Spline shaft, 67: Feeding roller, 68: Linear chute, 69: Sowing adjustment motor, 610: Screw, 611: Slide block, 612: L - shaped connecting rod, 613: Spline shaft tube, 614: Spline sleeve, 615: Ditching plow head, 616: Connecting rod, 617: Ring part, 618: Spline hole, 619: Storage hopper, 620: Material storage cavity, 621: Small seed groove, 622: Large seed groove, 623: Aggregate hopper, 624: Vertical plate, 625: Soil covering plow head, 626: Sleeve. Specific embodiments

[0043] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0044] A stubble-cleaning, soil-loosening, sowing and pressing mechanism for post-wheat multiple cropping, comprising a frame 1, a stubble-cleaning and soil-loosening assembly 2, a conveying assembly 3, a crushing and spreading assembly 4, a pressing assembly 5 and a sowing assembly 6. The frame 1 includes a support frame 12, one end of the upper side of the support frame 12 is fixedly connected with a connecting frame 11, a lead screw groove 14 is arranged in the middle of the support frame 12, and a square plate 13 is fixedly connected to the middle of the upper side of the support frame 12;

[0045] The sowing assembly 6 includes a row spacing adjusting motor 61, the row spacing adjusting motor 61 is fixedly connected to one side of the connecting frame 11, the two ends of the inner side of the lead screw groove 14 are movably connected to the ends of a bidirectional lead screw 62, the rotating shaft of the row spacing adjusting motor 61 is fixedly connected to the end of the bidirectional lead screw 62, the bidirectional lead screw 62 is provided with two threads with opposite spiral directions, two slide plates 63 are arranged in the lead screw groove 14, the two slide plates 63 are respectively threadedly connected to the two ends of the bidirectional lead screw 62, the upper ends of the two slide plates 63 are respectively fixedly connected with vertical plates 64, the upper ends of the vertical plates 64 are fixedly connected with a storage hopper 619, two storage cavities 620 are arranged in the storage hopper 619, the upper part of a sleeve 626 is fixedly communicated with the lower side of the storage hopper 619, the lower side of the sleeve 626 is fixedly communicated with an aggregate hopper 623, and the lower side of the aggregate hopper 623 is fixedly communicated with a spline shaft tube 613;

[0046] The spline shaft tube 613 is slidably connected with a spline sleeve 614, the lower end of the spline sleeve 614 is fixedly connected with a ditching plowshare 615, one ends of two L-shaped connecting rods 612 are respectively hinged to the two sides of the upper side of the spline sleeve 614, the other end of each pair of L-shaped connecting rods 612 is respectively hinged to one side of a slider 611, the slider 611 is slidably connected in a linear chute 68, the linear chute 68 is arranged in the middle of the vertical plate 64, a screw rod 610 is movably connected in the linear chute 68, the slider 611 is threadedly connected to the corresponding screw rod 610, one end of the screw rod 610 is fixedly connected with a sowing adjusting motor 69, and the sowing adjusting motor 69 is fixedly connected to one side of the vertical plate 64;

[0047] One side of each slider 611 is respectively hinged to a connecting rod 616, the other end of the connecting rod 616 is hinged to an annular member 617, one end of a blanking roller 67 is movably connected in the annular member 617, small seed grooves 621 are arranged in a circumferential arrangement at one end of the blanking roller 67 close to the annular member 617, large seed grooves 622 are arranged in a circumferential arrangement at the other end of the blanking roller 67, a spline hole 618 is arranged at the center of the blanking roller 67, a spline shaft 66 passes through and is slidably connected to the spline hole 618, the two ends of the spline shaft 66 are respectively movably connected to the square plate 13, and the rotating shaft of a sowing power motor 65 is fixedly connected to one end of the spline shaft 66, and the sowing power motor 65 is fixedly connected to one side of the square plate 13.

[0048] The stubble clearing and soil loosening component 2 includes a first synchronous pulley 21, the first synchronous pulley 21 is connected to a second synchronous pulley 23 through a first synchronous belt 22, the second synchronous pulley 23 is fixedly connected to one end of a bidirectional spiral blade shaft 24, the bidirectional spiral blade shaft 24 is provided with spiral blades with opposite spiral directions at both ends, the bidirectional spiral blade shaft 24 is arranged in a bucket 25, both ends of the bidirectional spiral blade shaft 24 are movably connected to both ends of the bucket 25, a shovel plate 27 is fixedly connected to the lower side of the opening on one side of the bucket 25, a group of first through grooves 26 are arranged on the lower side of the bucket 25, and the bucket 25 is fixedly connected to one end of the support frame 12.

[0049] The conveying component 3 includes a third synchronous pulley 31, the third synchronous pulley 31 is connected to a fourth synchronous pulley 33 through a second synchronous belt 32, the fourth synchronous pulley 33 is fixedly connected to one end of a spiral blade shaft 34, the spiral blade shaft 34 is arranged in a conveying pipe 35, the upper end of the spiral blade shaft 34 is movably connected to the upper end of the conveying pipe 35, the conveying pipe 35 passes through and is fixedly connected to the support frame 12, the lower end of the conveying pipe 35 is fixedly communicated with the middle part of the lower side of the bucket 25, a discharge pipe 36 is fixedly connected to one side of the upper end of the conveying pipe 35, and the lower end of the discharge pipe 36 is fixedly communicated with the middle part of a spreading cylinder 42.

[0050] The crushing and spreading component 4 includes the spreading cylinder 42, a bidirectional spiral blade shaft 45 is arranged in the spreading cylinder 42, the bidirectional spiral blade shaft 45 is provided with spiral blades with opposite spiral directions at both ends, both ends of the bidirectional spiral blade shaft 45 are respectively movably connected to the middle parts of both ends of the spreading cylinder 42, a main motor 41 is fixedly connected to one side of the spreading cylinder 42, the rotating shaft of the main motor 41 is fixedly connected to one end of the bidirectional spiral blade shaft 45, and the other end of the bidirectional spiral blade shaft 45 is fixedly connected to the center of the first synchronous pulley 21.

[0051] A group of connecting blocks 43 are fixedly connected to the middle part of the inner side of the spreading cylinder 42, the connecting blocks 43 are fixedly connected to a gear box 44, the central axis of the bidirectional spiral blade shaft 45 passes through and movably passes through the middle part of the gear box 44, the central axis of the bidirectional spiral blade shaft 45 passes through and is fixedly connected to the center of a first bevel gear 47, the first bevel gear 47 meshes with a second bevel gear 48 and a third bevel gear 49 respectively, the central axis of the second bevel gear 48 passes through and movably connects the gear box 44, the central axis of the second bevel gear 48 is fixedly connected to a group of evenly arranged blades 410, the blades 410 are arranged in the discharge pipe 36, the central axis of the third bevel gear 49 passes through and movably connects the gear box 44 and the spreading cylinder 42, the central axis of the third bevel gear 49 is fixedly connected to the center of the third synchronous pulley 31, and a group of second through grooves 46 are arranged on the lower side of the spreading cylinder 42.

[0052] The pressing assembly 5 includes two connecting plates 51. The two sides of the rear end of the support frame 12 are respectively hinged to the connecting plates 51, and the lower ends of the two connecting plates 51 are respectively movably connected to the central axes of both ends of the rolling shaft 52.

[0053] On the lower sides of the two sliding plates 63, vertical plates 624 are respectively fixedly connected. At the lower ends of the two vertical plates 624, two soil covering plowshares 625 are respectively fixedly connected. Each pair of the soil covering plowshares 625 is arranged in a V-shaped pattern.

[0054] Working principle: Taking the example of interplanting soybeans and baby cabbages after wheat harvesting.

[0055] Adding seeds: When using this mechanism, first connect the connecting frame 11 to the lifter at the rear of the tractor, and then add appropriate amounts of soybean seeds and baby cabbage seeds into the two storage cavities 620 of each storage hopper 619 respectively. When adding, add baby cabbage seeds into the storage cavity 620 closer to the small seed groove 621; add soybean seeds into the storage cavity 620 closer to the large seed groove 622.

[0056] Adjustment of three sowing modes: Adjust the sowing mode of each feeding roller 67 according to sowing needs. When the feeding roller 67 needs to sow soybean seeds, control the sowing adjustment motor 69 to drive the screw rod 610 to rotate. The screw rod 610 drives the slider 611 to move towards the feeding roller 67. The slider 611 drives the connecting rod 616 to swing. The connecting rod 616 drives the feeding roller 67 to slide along the sleeve 626 through the annular part 617. When the large seed groove 622 is directly below the lower opening of the storage cavity 620 filled with soybean seeds, control the sowing adjustment motor 69 to stop rotating; while the slider 611 moves towards the feeding roller 67, it also drives the L-shaped connecting rod 612 to swing. The L-shaped connecting rod 612 drives the spline sleeve 614 to move downward along the spline shaft tube 613. The spline shaft tube 613 drives the ditching plowshare 615 to move downward, so that the ditch plowed by the ditching plowshare 615 is deeper to meet the depth requirement for planting soybean seeds;

[0057] When the feeding roller 67 needs to sow baby cabbage seeds, control the sowing adjustment motor 69 to drive the slider 611 to move away from the feeding roller 67 through the screw rod 610. The movement process is opposite to the above process and will not be elaborated here. Finally, the small seed groove 621 is directly below the lower opening of the storage cavity 620 filled with baby cabbage seeds, and the ditching plowshare 615 moves upward, so that the ditch plowed by the ditching plowshare 615 is shallower to meet the depth requirement for planting baby cabbage seeds;

[0058] When the seed discharging roller 67 does not need to sow seeds, control the sowing adjustment motor 69 to move the seed discharging roller 67 until neither the small seed groove 621 nor the large seed groove 622 corresponds to the lower openings of the two material storage cavities 620. The middle part of the seed discharging roller 67 blocks the lower openings of the two material storage cavities 620, so that the seeds in the material storage cavities 620 cannot be transported downward through the rotating seed discharging roller 67.

[0059] Row spacing adjustment: Adjust the distance between the two furrowing plows 615 according to the required planting row spacing of soybeans and baby cabbages. Start the row spacing adjustment motor 61 to drive the bidirectional lead screw 62 to rotate. The bidirectional lead screw 62 drives the slide plate 63 to slide along the lead screw groove 14. The slide plate 63 drives the vertical plate 64, the material storage hopper 619, the seed discharging roller 67, the furrowing plow 615, the soil covering plow 625, etc. to move in the direction of approaching or moving away from each other. When the distance between the two furrowing plows 615 meets the required planting row spacing of soybeans and baby cabbages, turn off the row spacing adjustment motor 61.

[0060] Wheat stubble treatment: Turn on the main motor 41 to drive the bidirectional spiral blade shaft II 45 to rotate. The bidirectional spiral blade shaft II 45 drives the bidirectional spiral blade shaft I 24 through the synchronous pulley I 21, the synchronous belt I 22, and the synchronous pulley II 23. The bidirectional spiral blade shaft I 24 can drive the bevel gear I 47 to drive the bevel gear II 48 and the bevel gear III 49 to rotate. The bevel gear III 49 drives the blade 410 to rotate. The bevel gear II 48 drives the synchronous pulley IV 33 and the spiral blade shaft 34 to rotate synchronously through the synchronous pulley III 31 and the synchronous belt II 32. The rotating spiral blade shaft 34 can transport the wheat stubble in the bucket 25 to the upper end of the conveying pipe 35 and discharge it into the middle part of the spreading cylinder 42 through the discharge pipe 36. The wheat stubble is crushed by the blade 410 when passing through the discharge pipe 36. The bidirectional spiral blade shaft II 45 transports the wheat stubble falling into the middle part of the spreading cylinder 42 to both ends, and the crushed wheat stubble falls from the through groove II 46 during the conveying process. Specific implementation mode:

[0062] Turn on the main motor 41 and the seeding power motor 65, control the lift of the tractor to lower, so that this mechanism descends, and then control the tractor to move forward with this mechanism. The shovel plate 27 cuts off the roots of the wheat stubbles, and the wheat stubbles and the soil at the same depth of the roots enter the bucket 25. The double - helix blade shaft one 24 conveys the wheat stubbles and soil in the bucket 25 to the middle. During the conveying process, the soil falls to the ground from the first through - slot 26, achieving the purpose of clearing stubbles and loosening the soil. The remaining wheat stubbles are concentrated under the spiral blade shaft 34. The spiral blade shaft 34 conveys the wheat stubbles to the upper end of the conveying pipe 35 and discharges them into the middle of the spreading cylinder 42 through the discharge pipe 36. After the wheat stubbles are crushed by the blade 410, the double - helix blade shaft two 45 transports the wheat stubbles that fall into the middle of the spreading cylinder 42 to both ends. During the conveying process, the crushed wheat stubbles evenly fall to the ground from the second through - slot 46. During the forward movement of this mechanism, the furrowing plow head 615 plows out a planting groove from the loosened soil. The seeding power motor 65 drives the feeding roller 67 to rotate through the spline shaft 66. The rotating feeding roller 67 drives the small seed groove 621 and the large seed groove 622 to rotate. When the small seed groove 621 and the large seed groove 622 rotate to the lower - side opening of the storage cavity 620, the corresponding seeds fall into the small seed groove 621 or the large seed groove 622. When the small seed groove 621 and the large seed groove 622 rotate to the lower part, the corresponding seeds fall into the aggregate hopper 623 and then fall into the planting groove plowed by the furrowing plow head 615 through the spline shaft tube 613 and the spline sleeve 614. As this mechanism moves forward, the two pairs of soil - covering plow heads 625 gather the soil on both sides of the planting groove to the middle to cover and bury the seeds in the planting groove. As this mechanism moves forward, the crushed wheat stubbles fall from the second through - slot 46 onto the planted soil. The crushed wheat stubbles covering the soil can enhance the heat - preservation and moisture - retention capacity of the soil and improve the germination rate. As this mechanism moves forward, the rolling shaft 52 rolls the planted soil and the crushed wheat stubbles covering the soil. Rolling can compact the soil, reduce the phenomenon of suspended seeds and hanging roots, ensure the close contact between the seeds and the soil, and improve the germination rate and the uniformity of emergence.

[0063] As described above, it is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A stubble-clearing, soil-loosening, sowing and suppressing mechanism for post-wheat replanting, comprising a frame (1), a stubble-clearing and soil-loosening component (2), a conveying component (3), a crushing and spreading component (4), a suppressing component (5) and a sowing component (6), characterized in that: The frame (1) comprises a support frame (12), one end of the upper side of the support frame (12) is fixedly connected to the connecting frame (11), a screw rod groove (14) is provided in the middle of the support frame (12), and a square plate (13) is fixedly connected to the middle of the upper side of the support frame (12); The sowing assembly (6) comprises a row spacing adjustment motor (61), the row spacing adjustment motor (61) is fixedly connected to one side of the connecting frame (11), the inner two ends of the screw rod groove (14) are movably connected to the ends of the bidirectional screw rod (62), the rotating shaft of the row spacing adjustment motor (61) is fixedly connected to the ends of the bidirectional screw rod (62), the bidirectional screw rod (62) is provided with two sections of threads with opposite spiral directions, and two slide plates (63) are provided in the screw rod groove (14), and the two slide plates (63) are respectively The two ends of the bidirectional screw rod (62) are respectively threadedly connected, the upper ends of the two slide plates (63) are respectively fixedly connected to the vertical plate (64), the upper ends of the vertical plate (64) are fixedly connected to the storage hopper (619), and the storage hopper (619) is provided with two storage cavities (620), the lower side of the storage hopper (619) is fixedly connected to the upper part of the sleeve (626), the lower side of the sleeve (626) is fixedly connected to the collection hopper (623), and the lower side of the collection hopper (623) is fixedly connected to the spline shaft tube (613); The spline shaft tube (613) is slidably connected to the spline sleeve (614), the lower end of the spline sleeve (614) is fixedly connected to the furrowing plowshare (615), the upper sides of the spline sleeve (614) are respectively hinged to one end of the L-shaped connecting rod (612), and the other end of each pair of L-shaped connecting rods (612) is respectively hinged to one side of the slider (611), the slider (611) is slidably connected in the linear slide groove (68), the linear slide groove (68) is arranged in the middle of the vertical plate (64), the linear slide groove (68) is movably connected to the screw rod (610), the slider (611) is threadedly connected to the corresponding screw rod (610), one end of the screw rod (610) is fixedly connected to the sowing adjustment motor (69), and the sowing adjustment motor (69) is fixedly connected to one side of the vertical plate (64); One side of each slider (611) is hinged to a connecting rod (616), and the other end of the connecting rod (616) is hinged to a ring member (617). One end of a feeding roller (67) is movably connected inside the ring member (617). One end of the feeding roller (67) close to the ring member (617) is provided with small seed grooves (621) arranged in a circumference, and the other end of the feeding roller (67) is provided with large seed grooves (622) arranged in a circumference. A spline hole (618) is provided at the center of the feeding roller (67), and a spline shaft (66) passes through and is slidably connected to the spline hole (618). Both ends of the spline shaft (66) are movably connected to the square plate (13), and one end of the spline shaft (66) is fixedly connected to the rotating shaft of a sowing power motor (65), and the sowing power motor (65) is fixedly connected to one side of the square plate (13).

2. The stubble clearing, soil loosening, sowing and pressing mechanism for post-wheat multiple cropping according to claim 1, characterized in that: The stubble-clearing and soil-loosening assembly (2) comprises a synchronous wheel (21), the synchronous wheel (21) being connected to a synchronous wheel (23) via a synchronous belt (22), the synchronous wheel (23) being fixedly connected to one end of a bidirectional spiral blade shaft (24), the bidirectional spiral blade shaft (24) being provided with spiral blades with opposite spiral directions at both ends, the bidirectional spiral blade shaft (24) being arranged in a bucket (25), the two ends of the bidirectional spiral blade shaft (24) being movably connected to the two ends of the bucket (25), the lower side of an opening on one side of the bucket (25) being fixedly connected to a shovel plate (27), the lower side of the bucket (25) being provided with a group of through grooves (26), and the bucket (25) being fixedly connected to one end of the support frame (12).

3. The stubble clearing, soil loosening, sowing and pressing mechanism for post-wheat multiple cropping according to claim 2, characterized in that: The conveying assembly (3) comprises a synchronous wheel three (31), the synchronous wheel three (31) is connected to a synchronous wheel four (33) via a synchronous belt two (32), the synchronous wheel four (33) is fixedly connected to one end of a spiral blade shaft (34), the spiral blade shaft (34) is arranged in a conveying pipe (35), the upper end of the spiral blade shaft (34) is movably connected to the upper end of the conveying pipe (35), the conveying pipe (35) passes through and is fixedly connected to the support frame (12), the lower end of the conveying pipe (35) is fixedly connected to the middle part of the lower side of the bucket (25), one side of the upper end of the conveying pipe (35) is fixedly connected to a discharge pipe (36), and the lower end of the discharge pipe (36) is fixedly connected to the middle part of the spreading barrel (42).

4. The stubble clearing, soil loosening, sowing and pressing mechanism for post-wheat multiple cropping according to claim 3 is characterized in that: The crushing and spreading assembly (4) comprises a spreading barrel (42), a bidirectional spiral blade shaft (45) disposed in the spreading barrel (42), and spiral blades with opposite spiral directions at both ends of the bidirectional spiral blade shaft (45), and both ends of the bidirectional spiral blade shaft (45) are movably connected to the middle of both ends of the spreading barrel (42), one side of the spreading barrel (42) is fixedly connected to the main motor (41), the rotating shaft of the main motor (41) is fixedly connected to one end of the bidirectional spiral blade shaft (45), and the other end of the bidirectional spiral blade shaft (45) is fixedly connected to the center of the synchronous wheel (21).

5. The stubble clearing, soil loosening, sowing and pressing mechanism for post-wheat multiple cropping according to claim 4, characterized in that: A group of connecting blocks (43) are fixedly connected to the middle of the inner side of the spreading cylinder (42), and the connecting block (43) is fixedly connected to the gear box (44). The central axis of the bidirectional spiral blade shaft 2 (45) passes through and moves the middle of the gear box (44). The central axis of the bidirectional spiral blade shaft 2 (45) passes through and is fixedly connected to the center of the bevel gear 1 (47). The bevel gear 1 (47) is respectively engaged with the bevel gear 2 (48) and the bevel gear 3 (49). The central axis of the bevel gear 2 (48) passes through The gear box (44) is movably connected to the central axis of the bevel gear 2 (48) and is fixedly connected to a group of evenly arranged blades (410). The blades (410) are arranged in the discharge pipe (36). The central axis of the bevel gear 3 (49) passes through and movably connects the gear box (44) and the spreading barrel (42). The central axis of the bevel gear 3 (49) is fixedly connected to the center of the synchronous wheel 3 (31). A group of through grooves 2 (46) are provided on the lower side of the spreading barrel (42).

6. The stubble clearing, soil loosening, sowing and pressing mechanism for post-wheat multiple cropping according to claim 1, characterized in that: The suppression assembly (5) comprises two connecting plates (51), and the two sides of the rear end of the support frame (12) are respectively hingedly connected to the connecting plates (51), and the lower ends of the two connecting plates (51) are respectively movably connected to the central axes of the two ends of the rolling shaft (52).

7. The stubble clearing, soil loosening, sowing and pressing mechanism for post-wheat multiple cropping according to claim 1, characterized in that: The lower sides of the two slide plates (63) are respectively fixedly connected to the vertical plates (624), and the lower ends of the two vertical plates (624) are respectively fixedly connected to two soil covering plowshares (625), and each pair of soil covering plowshares (625) is arranged in an eight-shaped shape.

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