Staggered double-grain seeder on wide and narrow ridges of soybeans

Abstract

The invention relates to the technical field of farming equipment, and discloses a soybean wide and narrow ridge staggered type double-grain seeder which comprises a rack with a suspension bracket, the rotary tillage assembly is used for rotationally crushing soil and straw, the shaping plate is used for extruding, shaping and ridging crushed soil, the pressing assembly is used for compacting ridge surfaces, the seeding assembly is provided with two circles of staggered duckbilled seeding ports, and the shallow burying assembly can be used for laying and shallowly burying drip irrigation belts. According to the staggered type double-grain seeder on the soybean wide and narrow ridges, through the integrated design of rotary tillage crushing, shaping and ridging, pressing and compacting, staggered seeding and drip irrigation tape laying, the defects of a traditional seeder in the aspects of straw treatment, soil adaptability, seeding precision, water and fertilizer field management and the like are comprehensively overcome; organic unification of soil physical and chemical property improvement, planting density optimization and field environment regulation and control is achieved, and reliable equipment technical support is provided for high and stable yield of soybeans in the north of Anhui province.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of agricultural equipment, and in particular to a soybean wide-narrow-ridge misplaced double-seed sowing machine. BACKGROUND

[0002] The existing traditional soybean double-seed sowing machine mainly consists of a machine frame, a double-land-wheel driving structure, and a no-tillage fertilization and sowing combined unit: the machine frame serves as a support frame of the whole machine, bears the installation and fixation functions of various components, and is the basis for ensuring the stability of equipment operation; the double-land-wheel driving structure includes a transmission bracket, a land-wheel assembly, a one-way rotating bearing, a transmission shaft, a driving chain, a passive chain, and a transmission chain, which provides power for working devices such as a seed sowing device through the rotation of the land wheels and the components such as the transmission chain; the operation process of the no-tillage fertilization and sowing combined unit is as follows: first, the no-tillage stubble cutter unit operates first, and through the rotation of the power disc and the moving blade, the fixed blade is matched to cut and clean the straw and weeds on the sowing path, creating conditions for subsequent sowing; then, the fertilizing shovel digs a ditch in the path to transport the fertilizer in the fertilizer box into the ditch, and then the first soil cover covers the fertilization ditch to form a sowing belt; then, the ditch opener digs a second ditch on the sowing belt, and the double-seed hole sowing device sows the seeds in the seed box into the ditch according to the double-seed specification to complete the sowing; finally, the second soil cover covers the seeds, and the pressing wheel compacts the soil to make the seeds in close contact with the soil for germination, and the straw cover wheel covers the wheat straw on the seedling belt to achieve soil moisture preservation.

[0003] The traditional soybean double-seed sowing machine belongs to the wheat stubble no-tillage equipment, which processes the soil through the rotary tiller during operation, and then presses the soil after sowing. However, in actual application, due to the specific soil conditions, planting modes, and climate characteristics in northern Anhui, this type of equipment has many problems:

[0004] First, the operation obstacle caused by straw processing. During sowing, the ditch opener is easily stuck in the land covered with thick straw, resulting in uneven seed trench depth; the entrance of the seed sowing device may be blocked by broken straw, affecting the entry of seeds into the seed taking mechanism, causing missed sowing; the land wheel is easily slippery when it comes into contact with the straw, causing unstable transmission and fluctuating sowing amount, which destroys the double-seed sowing precision.

[0005] Second, poor adaptability to heavy clay soil. In some areas of northern Anhui, the soil is mainly sandy ginger black soil, which is strongly cohesive and clumps when wet and hardens when dry. The traditional ditch opener has a large operating resistance in this type of soil, and requires more traction power. Small and medium-sized tractors often have low operating efficiency due to insufficient power; the duckbill valve of the duckbill seed sowing device is easily attached to the mud in the wet clay soil, causing the duckbill to close loosely or be blocked, causing sowing failure.

[0006] Third, the seed and emergence quality is poor. When covering soil, the seed hole is easily compacted by clay block and affects emergence, in drought and hard soil, insufficient depth of ditching leads to shallow sowing of seeds and drought damage, in addition, the heavy clay soil is also compacted after irrigation, which reduces the emergence rate. SUMMARY

[0007] The application provides a soybean wide and narrow ridge misplaced double-grain seeder, the integrated design of rotary tillage crushing-shaping ridging-pressing compaction-misplaced seeding-drip irrigation tape laying of the application fully overcomes the defects of traditional seeders in straw treatment, soil adaptability, seed spacing accuracy and water and fertilizer field management, realizes the organic unity of soil physical and chemical property improvement, planting density optimization and field environment regulation, and provides reliable equipment and technical support for high yield and stable yield of soybeans in the north of Anhui Province.

[0008] To achieve the above object, the application adopts the following technical scheme: a soybean wide and narrow ridge misplaced double-grain seeder, comprising a frame with a suspension bracket, the frame is sequentially provided from front to back with a rotary tillage assembly for crushing soil and straw, a shaping plate for extruding and shaping the crushed soil into ridges, a pressing assembly for compacting the ridge surface, a seeding assembly with two circles of staggered duckbill seed discharge ports, and a shallow burying assembly capable of laying and shallow burying drip irrigation tape, the shallow burying assembly and the seeding assembly correspond one-to-one, the drip irrigation tape laid by the shallow burying assembly is located in the middle of the two circles of duckbill seed discharge ports, the shaping plate is composed of five baffles, from top to bottom, the baffles are baffle one, baffle two, baffle three, baffle four and baffle five, adjacent two baffles form angles a, b, c and d from top to bottom, the angles a, b, c and d are 168°, 164°, 175° and 175° respectively, the middle baffle five is an isosceles trapezoid, the distance between adjacent trapezoids is 300mm, the upper edge of each trapezoid is 150mm wide, the height is 200mm, and the bottom angle is 119.17°, the baffle five on the two sides is half of the middle baffle five.

[0009] Further, the two ends of the pressing assembly are connected with the frame through side plates, the pressing assembly has a plurality of pressing wheels corresponding to the ridges, the pressing wheels are trapezoidal pressing wheels, the trapezoid is an isosceles trapezoid, the upper side length is 295mm, the lower side length is 520mm, and the bottom angle is 50°, the pressing wheels are arranged at equal intervals with a distance of 130mm.

[0010] Further, the side plate is fixedly connected with a main cross beam, the main cross beam is fixedly connected with a plurality of longitudinal beams, the longitudinal beams correspond to the ridges and are located at the middle of the ridges, a seeding assembly is arranged below the longitudinal beams, drip irrigation belt racks are connected to the longitudinal beams through welding beams, the seeding assembly comprises two V-shaped frames, one end of each V-shaped frame is hingedly connected to the main cross beam, a duckbill seed metering device is arranged at the middle of each V-shaped frame, the other end of each V-shaped frame is connected together through a hexagonal bolt, a spring fixing rod is movably sleeved with the hexagonal bolt, one end of the spring fixing rod is fixedly connected with a movable sleeve, the hexagonal bolt is connected with the spring fixing rod through the movable sleeve, the other end of the spring fixing rod penetrates through the longitudinal beam, and a spring is arranged between the movable sleeve and the longitudinal beam.

[0011] Further, the shallow burying assembly comprises a vertical rod, two horizontal rods and a mounting rod, the vertical rod, the horizontal rods and the mounting rod are hingedly connected to form a parallelogram, the vertical rod is fixedly connected with the longitudinal beam and remains vertical, a pre-tightening spring is arranged on the parallelogram, the elastic force of the pre-tightening spring makes the mounting rod have a downward moving tendency, the mounting rod is fixedly connected with a drip irrigation belt sleeve, the lower end of the drip irrigation belt sleeve is fixedly connected with a triangular shovel, the rear end of the triangular shovel is provided with a tensioning wheel, the drip irrigation belt sleeve and the triangular shovel are hollow, the drip irrigation belt dropped from the drip irrigation belt rack penetrates through the drip irrigation belt sleeve and the triangular shovel and extends to the rear around the tensioning wheel.

[0012] Further, the horizontal rod is fixedly connected with a covering chain through a mounting plate, the two ends of the covering chain are fixed to the two ends of the mounting plate respectively, the center of the mounting plate is coincident with the centers of the horizontal rod and the longitudinal beam, and the covering chain pushes the soil generated by the triangular shovel and the surrounding soil into the ditch.

[0013] Further, the device further comprises a drag block and two equal-length guide chains, the two guide chains are connected with the horizontal rod through mounting plates, the two ends of the drag block are connected with the two guide chains through connecting rods, the connecting rods make the guide chains and the drag block form a gap for preventing stones, the middle of the drag block is movably connected with a follower, the other end of the follower is connected with the drip irrigation belt sleeve and synchronously rises and falls with the drip irrigation belt sleeve, the follower is connected with the two guide chains on the two sides through elastic belts, the elasticity of the elastic belts makes the two guide chains on the two sides tilt towards the middle, and the two sides and the lower side of the drag block are provided with guide inclined surfaces.

[0014] Further, the device further comprises a sliding block, the upper horizontal rod is slidably connected with the sliding block through a sliding groove, one end of a pre-tightening spring is fixedly connected with the vertical rod, the other end of the pre-tightening spring is fixedly connected with the sliding block, the sliding block is connected with a telescopic rod, and the telescopic rod extends and retracts to push the sliding block to move.

[0015] Further, each telescopic rod is connected with a control assembly through a pipeline, the control assembly comprises a pressure tank and a controller, the pressure tank is connected with a gas release valve and a gas pump, the pressure tank is provided with a pressure sensor, the pressure of the pressure tank is divided into a plurality of intervals, each interval corresponds to a pre-tightening spring elastic force level, and the pressure in the pressure tank is maintained in the corresponding interval by manually or automatically selecting the elastic force level through the controller.

[0016] Further, at least one of the follower bars has a straight section, a feedback groove is arranged in the straight section, monitoring devices are arranged on both sides of the upper wall of the feedback groove, the feedback groove is filled with liquid and gas, the monitoring devices can detect the liquid, when the straight section is horizontal or has a small inclination angle, the monitoring devices on both sides are not in contact with the liquid, signals of the monitoring devices can be transmitted to the controller through a feeder or wireless signals, and a vertical flow resistance plate is arranged in the middle of the feedback groove.

[0017] Further, the drip irrigation belt sleeve is provided with a mounting ring, the drip irrigation belt sleeve is movably sleeved with a mounting sleeve, the upper portion of the mounting sleeve is provided with a clamping sleeve, an adjusting sleeve is arranged between the mounting sleeve and the mounting ring, one side of the mounting sleeve is provided with a mounting rod, a waist hole is arranged at a position corresponding to the follower bar, the mounting rod passes through the waist hole, and the two ends of the follower bar are both provided with clamping nuts corresponding to the positions of the mounting rod.

[0018] The application provides a soybean wide-narrow ridge misplaced double-seed sowing machine, which forms a systematic solution to the core problems existing in the application of a traditional soybean double-seed sowing machine in the north of Anhui Province, and has remarkable technical effects:

[0019] First, through the integrated design of rotary tillage crushing, shaping, ridging, compacting, and laying drip irrigation belts, after the fine and soft soil layer formed after tillage is extruded and crushed by the shaping plate, the crushed soil is shaped into ridges, which can ensure the stability of the ridges, ensure the uniformity of the ditch depth, press the crushed straw into the ridge, avoid the straw being shovelled into the shaft of the compacting assembly or blocking the entrance of the duckbill seed metering device, ensure the stability of sowing and transmission, and enhance the sowing effect.

[0020] Second, the shaping plate moves on the soil crushed by the rotary tiller, the soil and straw are fully crushed, the moving resistance of the sowing machine is reduced, the demand for traction is reduced, and the duckbill seed metering device directly sows on the ridge surface just compacted, at this time, the soil is neither compacted nor caked, and is relatively dense, the duckbill valve is less affected by the soil, can smoothly run, and ensures the sowing effect.

[0021] Third, the combination of double-seed misplaced sowing and drip irrigation technology further optimizes the planting effect of the double-seed broadcast mode realized by the misplaced seed metering device, under the premise of ensuring ventilation and light transmission, the planting density is increased by 15%-20% compared with the traditional mode, and the double-seed synergistic breakthrough ability of the soil film is stronger, in the complex soil environment in the north of Anhui Province, the germination rate and seedling survival rate are significantly improved, effectively solving the problems of poor adaptability, low double-seed consistency and difficult emergence in sticky soil of the traditional seed metering device. At the same time, the application of the drip irrigation system accurately meets the water demand of soybean growth, avoids the soil compaction caused by traditional flooding irrigation, cooperates with the water permeability of the ridge, keeps the soil air permeability and water permeability in dynamic balance, and provides a stable water and fertilizer environment for soybean growth. BRIEF DESCRIPTION OF DRAWINGS

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort:

[0023] Figure 1 This is a left rear upper view of Embodiment 1 of the present invention;

[0024] Figure 2 This is the lower right front view of Embodiment 1 of the present invention;

[0025] Figure 3 This is a schematic diagram of the shallow-buried component and the seeding component in Embodiment 1 of the present invention;

[0026] Figure 4 This is a schematic diagram of the shaping plate in Embodiment 1 of the present invention;

[0027] Figure 5 This is a side view of the shaping plate in Embodiment 1 of the present invention;

[0028] Figure 6 This is a schematic diagram of the shallow-buried component in Embodiment 2 of the present invention;

[0029] Figure 7 For the present invention Figure 6 Side view;

[0030] Figure 8 For the present invention Figure 6 Top view;

[0031] Figure 9 For the present invention Figure 7 Enlarged view of A in the middle;

[0032] Figure 10 For the present invention Figure 7 Enlarged view of B in the middle;

[0033] Figure 11 This is a schematic diagram of the control component in Embodiment 2 of the present invention.

[0034] In the figure: 1, rack; 2, rotary tillage assembly; 3, material box; 4, shaping plate; 5, side plate; 6, pressing assembly; 7, shallow burying assembly; 8, longitudinal beam; 9, seeding assembly; 10, drip irrigation belt frame; 11, welded beam; 12, main cross beam; 13, suspension frame; 14, main gear box; 15, fertilizer guide plate; 16, material leakage box; 17, handle; 18, transmission shaft; 19, side gear box; 901, V-shaped frame; 902, duckbill seed metering device; 903, hexagonal bolt; 904, spring; 905, spring fixing rod; 401, baffle one; 402, baffle two; 403, baffle three; 404, baffle four; 405, baffle five; 406, mounting beam; 407, support sleeve; 408, support roller; 701, vertical rod; 702, horizontal rod; 703, mounting rod; 704, drip irrigation belt sleeve; 705, triangular shovel; 706, covering chain; 707, pre-tightening spring; 708, tensioning wheel; 709, mounting plate; 710, guide chain; 711, drag block; 712, connecting rod; 713, follower; 714, waist hole; 715, elastic band; 716, feedback groove; 717, flow resistance plate; 718, monitor; 719, mounting sleeve; 720, mounting ring; 721, adjusting sleeve; 722, clamping sleeve; 723, telescopic rod; 724, sliding block. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0036] Embodiment one, please refer to Figures 1-5 A soybean wide and narrow ridge misplaced double-seed sowing machine, comprising a rack 1, the rack 1 is fixedly connected with a rotary tillage assembly 2, the front end of the rack 1 is provided with a suspension frame 13 and a main gear box 14, the suspension frame 13 is used for being connected with a tractor, the main gear box 14 has an input shaft, the input shaft is in transmission connection with an output shaft of the tractor, both sides of the main gear box 14 are provided with transmission shafts 18, both sides of the rack 1 are provided with side gear boxes 19 corresponding to the transmission shafts 18, the transmission shafts 18 are in transmission connection with the rotary tillage assembly 2 through the side gear boxes 19, in the embodiment, the rotary tillage assembly 2 has two groups, each side of the side gear box 19 has six gears, three gears and a chain jointly drive a group of rotary tillage assemblies 2 to work, realize double-side transmission, the two-side transmission respectively drives left and right working components through double transmission chains, can disperse the load to both sides, avoid that a single side bears too large stress, and because left and right sides are respectively driven, even if one side encounters a hard soil block, the other side can still operate normally, reduce the risk of machine shutdown.

[0037] The rear end of the frame 1 is fixedly connected with a shaping plate 4, the shaping plate 4 is composed of five baffle plates, from top to bottom, they are baffle plate one 401, baffle plate two 402, baffle plate three 403, baffle plate four 404 and baffle plate five 405, two adjacent baffle plates form angles a, b, c and d from top to bottom, the angles a, b, c and d are 168°, 164°, 175° and 175° respectively, the middle baffle plate five 405 is an isosceles trapezoid, the distance between adjacent trapezoids is 300mm, the upper edge of each trapezoid is 150mm wide and 200mm high, and the bottom angle is 119.17°, the baffle plate five 405 on both sides is half of the middle baffle plate five 405, the above dimensions and angles are the engineering optimization results of the comprehensive soil mechanics, agronomic demand and mechanical efficiency, 164° can reduce the soil resistance, similar to the "wedge effect" of the plough share, the smaller the angle, the more concentrated the cutting force, suitable for hard or compacted soil, the near-right angle design of 175° is suitable for loose soil, through the larger contact surface to maintain the stability of the ridge shape, avoid excessive soil turning leading to water loss, different angle combinations form a gradient soil breaking effect: the front end 164° acute angle breaks the raw soil layer first, the middle part 168° transitions and adjusts, the rear end 175° completes the ridge shoulder shaping, the angle difference forms a "layered ridge" effect, ensuring the standardized soybean planting ridge shape of 15-20cm high and 25-35cm wide, the baffle plate one 401 is fixedly connected with a mounting beam 406, a support sleeve 407 is arranged between the mounting beam 406 and the baffle plate four 404, the mounting beam 406 and the baffle plate four 404 are both fixedly connected with a mounting seat for mounting the support sleeve 407, both sides of the shaping plate 4 are provided with a latch, the shaping plate 4 is connected with a support roller 408 through the latch, the support roller 408 provides support for the shaping plate 4, the mounting beam 406 is fixedly installed on the frame 1 through bolts.

[0038] After being shaped by the shaping plate 4, a ridge is formed between the two baffle plates five 405, the ridge has wide and narrow row characteristics, the upper part of the ridge is a wide row and the lower part of the ridge is a narrow row; the wide row spacing is 300mm and the narrow row spacing is 150mm, the ridge surface is extruded by the shaping plate 4 and forms a relatively flat surface, at this time, the straw broken by the rotary tillage assembly 2 is pressed into the ridge surface and will not wind the shaft again, in order to further compact the ridge surface, a tamping assembly 6 is arranged behind the shaping plate 4, both ends of the tamping assembly 6 are connected with the frame 1 through the side plates 5, the tamping assembly 6 has a plurality of tamping wheels corresponding to the ridge, the tamping wheels are trapezoidal tamping wheels, the trapezoid is an isosceles trapezoid, the upper edge is 295mm long, the lower edge is 520mm long, and the bottom angle is 50°, the tamping wheels are arranged at equal intervals with a spacing of 130mm, and a wide and narrow row ridge with a compact surface is formed after being tamped by the tamping assembly 6.

[0039] The side plate 5 is fixedly connected with a main cross beam 12, the two ends of the main cross beam 12 are connected with the side plate 5 through bolts, the main cross beam 12 is fixedly connected with a plurality of longitudinal beams 8, the longitudinal beams 8 correspond to the ridges and are located at the middle parts of the ridges, i.e. the middle parts of each roller or the positions between the two baffle plates 405, a seeding assembly 9 is arranged below the longitudinal beams 8, drip irrigation belt racks 10 are connected with the drip irrigation belt racks 10 through the welding beams 11 above the longitudinal beams 8, drip irrigation belt rolls are placed on the drip irrigation belt racks 10, and the welding beams 11 are arranged transversely to connect the longitudinal beams 8 into a whole. The seeding assembly 9 comprises two V-shaped frames 901, one end of the V-shaped frame 901 is hinged to the main cross beam 12, a duckbill seed meter 902 is arranged at the middle part of the two V-shaped frames 901, the other end of the two V-shaped frames 901 is connected together through a hexagonal bolt 903, a spring fixing rod 905 is movably sleeved with the hexagonal bolt 903, one end of the spring fixing rod 905 is fixedly connected with a movable sleeve, the hexagonal bolt 903 is connected with the spring fixing rod 905 through the movable sleeve, the other end of the spring fixing rod 905 passes through the longitudinal beam 8, a through slot is arranged on the longitudinal beam 8 for the spring fixing rod 905 to pass through and move, a spring 904 is arranged between the movable sleeve and the longitudinal beam 8, under the elastic force of the spring 904, the duckbill seed meter 902 is always rolled on the ridge surface, two circles of duckbill seed holes are arranged on the duckbill seed meter 902, the two circles of duckbill seed holes are arranged staggeredly, and the two circles of duckbill seed holes are arranged on the two sides of the longitudinal beam 8, so that the drip irrigation belt is just located between the two rows of seed holes after being shallowly buried.

[0040] The shallow burying assembly 7 comprises a vertical rod 701 fixedly connected with the longitudinal beam 8, the vertical rod 701 is kept vertical, two horizontal rods 702 are hinged to the vertical rod 701, the two horizontal rods 702 are equal in length, an installation rod 703 is arranged between the two horizontal rods 702, the two ends of the installation rod 703 are hinged to the end portions of the horizontal rods 702, the two horizontal rods 702 are inclined downward, the vertical rod 701, the horizontal rods 702 and the installation rod 703 form a parallelogram, so the installation rod 703 is always kept vertical, a pre-tightening spring 707 is arranged on the parallelogram, the elastic force of the pre-tightening spring 707 makes the horizontal rods 702 further inclined, so the installation rod 703 has a downward moving pressure, a drip irrigation belt sleeve 704 is fixedly connected with the installation rod 703, a triangular shovel 705 is fixedly connected with the lower end of the drip irrigation belt sleeve 704, a tensioning wheel 708 is arranged at the rear end of the triangular shovel 705, the drip irrigation belt sleeve 704 and the triangular shovel 705 are hollow, the free end of the drip irrigation belt passes through the drip irrigation belt sleeve 704 and the triangular shovel 705 and extends to the rear around the tensioning wheel 708, during seeding, the triangular shovel 705 is dug into the ridge surface under the pressure and opens a groove, the free end of the drip irrigation belt is bound and continuously unwound, the drip irrigation belt is placed into the groove, the groove opened by the triangular shovel 705 is just between the two rows of seed holes, and the drip irrigation belt is buried between the two rows of seed holes, so that the two rows of seed holes can obtain uniform irrigation.

[0041] The existing drip irrigation belt laying structure sets the soil covering wheel on both sides of the drip irrigation belt in order to better bury the drip irrigation belt, and pushes the soil on both sides back into the ditch through the two soil covering wheels, but inevitably, the soil covering wheel will form a ditch on both sides of the drip irrigation belt when rotating, so that the floating soil of the middle part of the drip irrigation belt forms a bump, and under the action of wind and rainwater erosion, the drip irrigation belt may be exposed, which affects irrigation. Therefore, in the embodiment, the horizontal rod 702 is fixedly connected with the soil covering chain 706 through the mounting plate 709, the two ends of the soil covering chain 706 are fixed with the two ends of the mounting plate 709 respectively, the center of the mounting plate 709 coincides with the centers of the horizontal rod 702 and the vertical beam 8, the soil covering chain 706 is constantly dragged along with the movement of the shallow burying assembly 7, the tail of the soil covering chain 706 is naturally centered, and under its own gravity, the floating soil on both sides of the drip irrigation belt ditch is pushed back into the ditch, burying the drip irrigation belt, and at the same time, the drip irrigation belt is pressed by the soil covering chain 706, reducing the bump.

[0042] The upper side of the frame 1 is provided with a material box 3, the front and back of the material box 3 are respectively provided with a fertilizer box and a seed box, the lower side of the fertilizer box and the seed box is respectively provided with a plurality of material leakage boxes 16, the side of the frame 1 is provided with a handle 17 for controlling the opening or closing of the material leakage box 16, after the material leakage box 16 is opened, the seeds and fertilizers in the seed box and the fertilizer box can fall down, the material leakage box 16 corresponding to the seed box is communicated with the seeding assembly 9 through a hose, and the lower side of the material leakage box 16 corresponding to the fertilizer box is provided with a fertilizer guide plate 15, the fertilizer guide plate 15 faces the front side, and the fertilizer directly falls in front of the rotary tillage assembly 2 and is twisted into the soil by the rotary tillage assembly 2.

[0043] In the second embodiment, the floating soil near the drip irrigation belt ditch is pushed into the ditch by the self-gravity of the soil covering chain 706 in the first embodiment, but inevitably, small stones near the soil covering chain 706 may be pushed into the ditch, and the small stones can move along with the soil covering chain 706, since the rotary tillage assembly 2 rotates, the small stones may have sharp tips and may damage the drip irrigation belt, secondly, the triangular shovel 705 is pressed into the soil under the action of the pre-tightening spring 707, but there are many factors affecting the hardness of the soil, and the depth of the triangular shovel 705 digging into the soil will be different in different hardness of the soil, which affects the control of the burying depth of the drip irrigation belt, therefore, please refer to Figures 6-10, embodiment two is based on embodiment one, two equal length guide chain 710 instead of covering chain 706, with the slider 724 to adjust the spring force of the pre-tightening spring 707, the installation plate 709 is connected with the guide chain 710 at both ends, two guide chain 710 the other end with the drag block 711 is connected, drag block 711 through the connecting rod 712 with both sides of the guide chain 710 is connected, drag block 711 and guide chain 710 between the gap between the stones, because two guide chain 710 is equal in length, when dragging the drag block 711, the drag block 711 can be centered, the middle of the drag block 711 is movably connected with the follower bar 713, the follower bar 713 can rotate horizontally relative to the drag block 711, and can also rotate vertically, the follower bar 713 has a straight section, the other end of the follower bar 713 is connected with the drip irrigation belt sleeve 704, and rises and falls synchronously with the drip irrigation belt sleeve 704, the follower bar 713 is connected with both sides of the guide chain 710 through the elastic belt 715, the elasticity of the elastic belt 715 makes both sides of the guide chain 710 tilt towards the middle, the soil is moved up along with the guide chain 710 and pushed into the middle of the ditch, a small amount of soil leaks to the back from the middle of the two guide chains 710, the drag block 711 is flattened, if there are stones, the stones will leak to the back, the drag block 711 has a guide slope on both sides and the bottom, the front end of the drag block 711 is arrow-shaped, and the front end arrow is off the ground, because the drag block 711 is far away from the elastic belt 715, more soil will accumulate in front of the stone, the resistance to movement is larger, and because the front end of the drag block 711 is off the ground and has a slope below, the drag block 711 can pass through and cannot be dragged, for smaller stones on the soil, the drag block 711 can push, which will slide to both sides under the action of the slope and leak out from the gap between the two sides, for larger stones, the drag block 711 is difficult to push, then the action of the slope will make the drag block 711 deviate to one side, actively bypass the stone, finally, the stone leaks out from the gap between the two sides.

[0044] The cross bar 702 is slidably connected with the slider 724 through the sliding groove, one end of the pre-tightening spring 707 is fixedly connected with the vertical rod 701, the other end of the pre-tightening spring 707 is fixedly connected with the slider 724, the slider 724 is connected with the telescopic rod 723, the telescopic rod 723 is extended to push the slider 724 to move, when the telescopic rod 723 is extended, the tension of the pre-tightening spring 707 increases, the downward pressure of the drip irrigation belt sleeve 704 increases, and the depth of digging into the ridge surface is deeper, when the telescopic rod 723 is retracted, the downward pressure of the drip irrigation belt sleeve 704 decreases, and the depth of digging is reduced, each telescopic rod 723 is connected with the control assembly through a pipeline, please refer to Figure 11The control assembly comprises a pressure tank and a controller. The pressure tank is arranged on the frame 1 and is provided with a gas release valve. A gas pump is in communication with the pressure tank and supplies air to the pressure tank. The pressure tank is provided with a pressure sensor. The pressure tank is in communication with each telescopic rod 723. When the pressure in the pressure tank increases, the telescopic rod 723 extends. When the pressure in the pressure tank decreases, the telescopic rod 723 retracts. The pressure in the pressure tank is divided into multiple intervals. Each interval corresponds to a spring force level of the pre-tightening spring 707. When the pre-tightening spring 707 is adjusted to a spring force level, the gas pump and the gas release valve adjust the pressure in the pressure tank to the corresponding interval.

[0045] At least one straight section of the follower bar 713 is provided with a feedback groove 716. The upper wall of the feedback groove 716 is provided with a monitor 718 on both sides. The feedback groove 716 is filled with liquid and gas. The monitor 718 can detect the liquid. When the straight section is horizontal or has a small inclination angle, the monitors 718 on both sides are not in contact with the liquid. The signals of the monitors 718 can be transmitted to the controller through a feeder or wireless signals. The middle part of the feedback groove 716 is provided with a vertical flow resistance plate 717. The flow resistance plate 717 reduces the flow speed of the liquid and is used for filtering transient inclination. When the height difference between the two ends of the follower bar 713 is within a set value, the straight section remains horizontal. Since one end of the follower bar 713 is relatively stable when the drag block 711 drags on the relatively flat ridge, and the other end changes with the depth of the triangular shovel 705, the height difference between the two ends of the follower bar 713 directly feeds back the depth of the triangular shovel 705. When the left monitor 718 outputs a signal detecting the liquid, it represents that the depth of the triangular shovel 705 is too deep, the spring force level of the pre-tightening spring 707 needs to be reduced, and the telescopic rod 723 needs to be retracted, i.e. the gas release valve releases the gas, so that the pressure in the pressure tank is reduced to a lower interval. Conversely, when the right monitor 718 continuously outputs a signal for a long time, it means that the depth of the triangular shovel 705 is insufficient, and the drip irrigation belt is buried too shallowly. The tension of the pre-tightening spring 707 needs to be increased, and the gas pump is opened to supply air, so that the pressure in the pressure tank is increased to a higher interval. The above control process can be manually controlled or automatically adjusted by a programmed device.

[0046] In order to enable the follower bar 713 to adapt to more drip irrigation belt burying depths, the drip irrigation belt cover 704 is provided with a mounting ring 720. The drip irrigation belt cover 704 is movably sleeved with a mounting sleeve 719. The upper part of the mounting sleeve 719 is provided with a clamping sleeve 722. The mounting sleeve 719 and the mounting ring 720 are provided with an adjusting sleeve 721 therebetween. According to needs, different thicknesses of the adjusting sleeve 721 are selected for installation. In order to facilitate the installation of the adjusting sleeve 721, the adjusting sleeve 721 is composed of two semicircles. One side of the mounting sleeve 719 is provided with a mounting rod. The corresponding position of the follower bar 713 is provided with a waist hole 714. The mounting rod passes through the waist hole 714. The two ends of the follower bar 713 are provided with clamping nuts. The thicker the adjusting sleeve 721 selected for installation is, the deeper the drip irrigation belt needs to be buried. Conversely, the thinner the adjusting sleeve 721 selected for installation is, the shallower the drip irrigation belt needs to be buried.

[0047] At the time of sowing, the staff first selects the appropriate thickness of the adjusting sleeve 721 according to the embedding depth of the drip irrigation tape, and then adjusts the spring force level of the pre-tightening spring 707 according to their own experience, that is, the pressure interval of the pressure tank. With the start of sowing, the triangular shovel 705 is shovel into the ridge surface to start laying the drip irrigation tape. At this time, the feedback signal of the monitor 718 is observed, and the spring force level of the pre-tightening spring 707 is gradually adjusted, that is, the pressure interval of the pressure tank is gradually lowered or raised, until both monitors 718 cannot receive the signal of immersion in liquid.

[0048] The above description of disclosed embodiments enables those skilled in the art to carry out or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A double grain seeder for soybean in wide-narrow ridge with staggered arrangement, comprising a frame (1) with a suspension bracket (13), characterized in that, The frame (1) is sequentially provided with a rotary tillage assembly (2) for crushing soil and straw, a shaping plate (4) for extruding and shaping crushed soil and forming ridges, a rolling assembly (6) for compacting the ridge surface, a seeding assembly (9) having two rows of staggered duckbill seed discharge ports, and a shallow burying assembly (7) capable of laying and shallow burying drip irrigation belts, the shallow burying assembly (7) and the seeding assembly (9) correspond to each other, and the drip irrigation belt laid by the shallow burying assembly (7) is located in the middle of the two rows of duckbill seed discharge ports; The shaping plate (4) is composed of five baffles, from top to bottom, the baffles are baffle one (401), baffle two (402), baffle three (403), baffle four (404) and baffle five (405), adjacent two baffles form angles a, b, c and d from top to bottom, the angles of the angles a, b, c and d are 168°, 164°, 175° and 175° respectively, the middle baffle five (405) is an isosceles trapezoid, the distance between adjacent trapezoids is 300mm, the upper edge of each trapezoid is 150mm wide, the height is 200mm, and the bottom angle is 119.17°, and the baffle five (405) on both sides is half of the middle baffle five (405).

2. The soybean double hill drill according to claim 1, wherein, Both ends of the rolling assembly (6) are connected with the frame (1) through the side plates (5), the rolling assembly (6) has a plurality of rolling wheels corresponding to the ridges, the rolling wheels are trapezoidal rolling wheels, the trapezoid is an isosceles trapezoid, the upper side is 295mm long, the lower side is 520mm long, and the bottom angle is 50°, the rolling wheels are arranged at equal intervals with a distance of 130mm.

3. The double seed hill-drop planter for soybean in wide-narrow ridge according to claim 1, characterized in that, The side plate (5) is fixedly connected with a main cross beam (12), the main cross beam (12) is fixedly connected with a plurality of longitudinal beams (8), the longitudinal beams (8) correspond to the ridges and are located in the middle of the ridges, a seeding assembly (9) is arranged below the longitudinal beams (8), a drip irrigation belt frame (10) is connected above the longitudinal beams (8) through a welding beam (11), the seeding assembly (9) comprises two V-shaped frames (901), one end of each V-shaped frame (901) is hingedly connected with the main cross beam (12), a duckbill seed metering device (902) is arranged in the middle of each V-shaped frame (901), the other end of each V-shaped frame (901) is connected together through a hexagonal bolt (903), a spring fixing rod (905) is movably sleeved on the hexagonal bolt (903), one end of the spring fixing rod (905) is fixedly connected with a movable sleeve, the hexagonal bolt (903) penetrates through the movable sleeve, the other end of the spring fixing rod (905) penetrates through the longitudinal beam (8), and a spring (904) is arranged between the movable sleeve and the longitudinal beam (8).

4. The soybean double hill drill according to claim 3, wherein, The shallow-buried assembly (7) comprises a vertical rod (701), two horizontal rods (702) and a mounting rod (703), the vertical rod (701), the horizontal rod (702) and the mounting rod (703) are hinged to form a parallelogram, the vertical rod (701) is fixedly connected with the longitudinal beam (8) and kept vertical, a pre-tightening spring (707) is arranged on the parallelogram, the elastic force of the pre-tightening spring (707) makes the mounting rod (703) have a downward moving tendency, the mounting rod (703) is fixedly connected with a drip irrigation belt sleeve (704), the lower end of the drip irrigation belt sleeve (704) is fixedly connected with a triangular shovel (705), the rear end of the triangular shovel (705) is provided with a tensioning wheel (708), the drip irrigation belt sleeve (704) and the triangular shovel (705) are hollow, the drip irrigation belt dropped from the drip irrigation belt frame (10) passes through the drip irrigation belt sleeve (704) and the triangular shovel (705) and extends to the rear around the tensioning wheel (708).

5. The double soybean hill drill according to claim 4, wherein, The horizontal rod (702) is fixedly connected with a covering chain (706) through a mounting plate (709), the two ends of the covering chain (706) are fixed with the two ends of the mounting plate (709) respectively, and the center of the mounting plate (709) coincides with the centers of the horizontal rod (702) and the longitudinal beam (8).

6. The double soybean hill drill according to claim 4, wherein, Further comprising a drag block (711) and two equal-length guide chains (710), the two guide chains (710) are connected with the horizontal rod (702) through the mounting plate (709), the two ends of the drag block (711) are connected with the two guide chains (710) through connecting rods (712), the connecting rods (712) make the guide chains (710) and the drag block (711) form a gap for preventing stones, the middle part of the drag block (711) is movably connected with a follower (713), the other end of the follower (713) is connected with the drip irrigation belt sleeve (704) and synchronously rises and falls with the drip irrigation belt sleeve (704), the follower (713) is connected with the two guide chains (710) on the two sides through elastic belts (715), the elasticity of the elastic belts (715) makes the two guide chains (710) on the two sides tilt towards the middle part, and the two sides and the lower side of the drag block (711) are provided with guide inclined surfaces.

7. The soybean double hill drill according to claim 6, wherein, Further comprising a sliding block (724), the upper horizontal rod (702) is slidably connected with the sliding block (724) through a sliding groove, one end of the pre-tightening spring (707) is fixedly connected with the vertical rod (701), the other end of the pre-tightening spring (707) is fixedly connected with the sliding block (724), and the sliding block (724) is connected with a telescopic rod (723) which extends and retracts to push the sliding block (724) to move.

8. The soybean double hill drill according to claim 7, wherein, Each telescopic rod (723) is connected with a control assembly through a pipeline, the control assembly comprises a pressure tank and a controller, the pressure tank is connected with a gas release valve and a gas pump, the pressure tank is provided with a pressure sensor, the pressure of the pressure tank is divided into multiple intervals, each interval corresponds to an elastic force level of a pre-tightening spring (707), and the pressure in the pressure tank is maintained in a corresponding interval by manually or automatically selecting the elastic force level through the controller.

9. The double soybean hill drill according to claim 7, wherein, At least one of the follow-up strips (713) has a straight section, a feedback groove (716) is arranged in the straight section, the upper wall of the feedback groove (716) is provided with a monitor (718) on both sides, the feedback groove (716) is filled with liquid and gas, the monitor (718) can detect the liquid, when the straight section is horizontal or the inclination angle is small, the monitors (718) on both sides are not in contact with the liquid, the signal of the monitor (718) can be transmitted to the controller through a feeder or a wireless signal, and the middle of the feedback groove (716) is provided with a vertical flow resistance plate (717).

10. The double soybean hill drill according to claim 9, wherein, The drip irrigation belt sleeve (704) is provided with a mounting ring (720), the drip irrigation belt sleeve (704) is movably sleeved with a mounting sleeve (719), the upper side of the mounting sleeve (719) is provided with a clamping sleeve (722), an adjusting sleeve (721) is arranged between the mounting sleeve (719) and the mounting ring (720), one side of the mounting sleeve (719) is provided with a mounting rod, a waist hole (714) is arranged at a position corresponding to the follow-up strip (713), the mounting rod passes through the waist hole (714), and the two ends of the follow-up strip (713) are provided with clamping nuts corresponding to the positions of the mounting rod.

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