CN217790257U - Variable-force type double-disc wheat seed ditch pressing and sowing single body - Google Patents

Abstract

The utility model discloses a variable-force formula double disc wheat kind ditch suppression seeding monomer, seeding ditching device in including the frame and locating the frame, kind ditch suppression device, spring work pulling force adjusting device, hydraulic control device and depth of broadcast detection device, be equipped with the frame cassette in the frame, seeding ditching device and kind ditch suppression are articulated with the frame cassette side by side through the pin, seeding ditching device includes the double disc furrow opener, pipe and kind ditch structure mechanism, double disc furrow opener and kind ditch structure mechanism all are fixed in the pipe lower extreme, kind ditch suppression device includes press wheel and press wheel connecting plate, the articulated lower extreme of locating the press wheel connecting plate of press wheel, the top of pipe and press wheel connecting plate is all articulated through pin and frame cassette, press wheel and hydraulic control device connect, pipe and spring work pulling force adjusting device connect, the depth of broadcast detection device includes angle sensor and sensor.

Description

Variable-force type double-disc wheat seed ditch pressing and sowing single body

Technical Field

The utility model belongs to the field of agricultural machinery, in particular to variable-force type double-disc wheat seed ditch suppression seeding monomer.

Background

Wheat is one of three major food crops in China, and the whole process of mechanization is basically realized, but certain short plates exist in different areas and different production links. Improving the seeding quality is a key link for grasping the production of wheat and can lay a solid foundation for high yield and harvest.

One of the core links of the sowing operation is to construct a proper seedbed soil structure, form good seedbed performance and provide good environment and conditions for seed germination and seedling growth. The seedbed construction technology has become one of the main directions in the research field of seeding technology, and is also the leading-edge research field of the fusion and intersection of agricultural machinery and agriculture. Currently, precision seeding has become a major trend in seeding operations. The precise sowing technology is to sow a predetermined number of qualified seeds to a predetermined position of soil meeting the requirement, and the three-dimensional space coordinate position is formed by row spacing, grain spacing (planting distance) and sowing depth, so as to achieve the purposes of saving fine seeds, maintaining soil fertility, reducing working hours and uniformly emerging seedlings in the field. The technology is a comprehensive advanced technology relating to multiple subjects such as agricultural machinery, agriculture, soil and fertilizer, seeds, plant protection and the like, forms a quite complete system in developed countries such as Europe and America and is widely used for dibbling crops such as soybeans, corns, cotton, sorghum, beet and the like. The key links influencing the precision seeding accuracy comprise: seed metering, seed throwing, seed bed construction and the like. Through a large amount of literature research, researchers at home and abroad intensively research precision seeding technology mostly focuses on parts such as a seed sowing device, and relatively few researches on seed bed construction are found.

Common seedbed construction requires furrow opener ditching and soil covering and compacting. The ditching device types commonly used on the current seeder mainly comprise forms such as a hoe shovel type, a arrow shovel type, a sliding cutter type, a core share type, a boot shoe type, a boat shovel type, a double-disc type and a single-disc type, wherein the double-disc type ditcher has the widest application range, has the advantages of simple structure, stable work and small resistance, can adapt to high-speed seeding operation, and is not easy to generate clay, hilling and blocking in the ditching process. However, the seed ditches dug by the double-disc ditcher are W-shaped instead of V-shaped, namely, the bottom of each ditch is provided with a pointed bulge, and meanwhile, a partial soil returning phenomenon occurs, soil slides down along the wall of the ditch, so that the depth of the ditch is further inconsistent, and the consistency of the sowing depth is poor; the ditch wall is uneven, and the seeds hang on the ditch wall after falling down, so that the seeds transversely shift; as the soil blocks slide from the bottom of the ditch, the seeds can roll until being stabilized at a certain position after entering the seed ditch, and the row spacing is inconsistent. In addition, loose soil and more soil blocks at the bottom of the ditch are not beneficial to good contact of seeds and the soil, and can reduce or even lose the capillary action of the soil and influence the germination and emergence of the seeds.

The intensity of the casing compaction is not effective to compact the soil in the plough layer where the seed tape is located, or the surface soil has been over-compacted when the desired degree of compaction has been reached. Influence precipitation and infiltration, reduce the water source of soil and even influence the soil breaking of seedlings. Therefore, a method of compacting a furrow is proposed, in which after wheat seeds fall down a seedbed, the soil in a plough layer where a seed tape is located is compacted by compacting, and then soil is covered. Thereby constructing a high-quality seedbed structure and providing good soil environment and conditions for the germination of wheat seeds and the growth of seedlings.

Most of the existing seeding and pressing modes are pre-sowing pressing in a mode of a pressing roller at the front part of the seeder or post-sowing pressing in a mode of a pressing roller at the rear part of the seeder, the pre-sowing pressing is to press and press a seedbed to be operated before wheat seeding, the post-sowing pressing is to cover soil and press the seedbed in the whole operation width after the seeding operation, the two operations are to treat surface soil, the aim of embedding seeds in the seedbed can not be achieved due to over-compaction of the surface soil, the upper part is solid and the lower part is deficient, and the substantial influence is not generated on the construction of the seedbed.

In recent years, the soil property changes caused by abnormal weather conditions, which puts higher requirements on the operation of the seeding machine to adapt to the change of the soil, but the set compacting strength of the traditional seeding machine is generally a fixed value and cannot meet the requirements of different operation conditions and the same operation level. The traditional seeder has fresh effect on the aspects of construction, compaction and the like of seed ditches. And a seeding machine which can achieve different seed furrow pressing strengths aiming at different soil conditions has not been produced for a long time.

To address the seeding quality issue, different soil types and implement performance are key to seedbed construction.

SUMMERY OF THE UTILITY MODEL

In order to overcome prior art's defect, the utility model provides a variable power formula double disc wheat kind ditch suppression seeding monomer, this monomer can construct the seedbed structure that high-quality kind ditch and seed were located, makes the seed inlay in soil, and the soil compaction on seedtape place plough layer adjusts the suppression intensity to the characters soil of difference, and the increase is broadcast dark uniformity, guarantees the uniformity of operation quality under the different operation conditions, is favorable to sprouting of seed.

In order to achieve the purpose, the utility model adopts the following technical proposal:

the utility model provides a two disc wheat kind ditch suppression seeding monomer, include the frame and locate the seeding ditching device in the frame, kind ditch suppression device, spring work tension adjusting device, hydraulic control device and deep detection device of broadcasting, be equipped with the frame cassette in the frame, seeding ditching device and kind ditch suppression are articulated with the frame cassette side by side through the pin, seeding ditching device includes two disc furrow openers, mechanism is found to pipe and kind ditch, two disc furrow openers and kind ditch are found the mechanism and are all fixed in the pipe lower extreme, the middle part of pipe is equipped with the seeding spring connecting plate, kind ditch suppression device includes press wheel and press wheel connecting plate, the articulated lower extreme of locating the press wheel connecting plate of press wheel, the top of pipe and press wheel connecting plate is all articulated through pin and frame cassette, press wheel connecting plate and hydraulic control device connect, pipe and spring work tension adjusting device connect, deep detection device includes angle sensor and force sensor, angle force sensor and hydraulic control device link to each other, angle force sensor and spring work tension adjusting device link to each other.

Further, the seed ditch founds the mechanism including the kind of straight tube that falls, kind of baffle and the ramp plate fall, and kind of straight tube and pipe that falls pass through pipe adjusting bolt and connect, and the left and right sides of the straight tube that falls is equipped with kind of baffle, connects through the connecting plate between the kind of baffle that falls, and the front end of the baffle that falls is equipped with the ramp plate, and the export of the straight tube that falls is located kind of baffle, connecting plate and ramp plate that fall encloses the region that closes, and the ramp plate passes through the screw fixed with the kind of baffle that falls of both sides.

Further, spring work pulling force adjusting device is by the spring axle, spring axle fastener, adjustment handle, the spring axle pull rod, pull rod mounting and seeding extension spring are constituteed, spring axle fastener and pull rod mounting are all fixed in the frame, the spring axle passes through the spring axle fastener to be fixed in the frame, the one end of spring axle pull rod is equipped with the screw thread, the other end of spring axle pull rod passes through pin and spring hub connection, the middle part of pull rod mounting is equipped with the slot hole, the screw thread end of spring axle pull rod passes pull rod mounting and adjustment handle threaded connection, seeding extension spring's one end and spring hub connection, the other end and the seeding spring connecting plate on the pipe are connected.

Furtherly, the vertical furrow opener dead lever that is equipped with in seeding spring coupling plate's below, the disc pull rod on the two disc furrow openers passes through ditching degree of depth adjusting bolt to be fixed on the furrow opener dead lever, and the both sides of pipe upper end are equipped with the pipe connecting rod, are equipped with the through-hole that supplies the round pin nail to pass on the pipe connecting rod, and the pipe is articulated through pipe connecting rod and frame cassette, and the upper end of pipe is equipped with the seeding limiting plate.

Further, the press wheel connecting plate comprises the long connecting plate of press wheel and the short connecting plate of press wheel, and the upper portion of the long connecting plate of press wheel is equipped with the press limiting plate, and the upper end of the long connecting plate of press wheel is equipped with the through-hole that supplies the pin to pass, and the lower extreme of the long connecting plate of press wheel is equipped with the multiunit regulation hole, and the short connecting plate of press wheel passes through press adjusting bolt and the long connecting plate of press wheel and is connected.

Further, hydraulic control device includes the pneumatic cylinder, pneumatic cylinder mount and pneumatic cylinder connecting plate, the both ends of pneumatic cylinder connecting plate are fixed on the long connecting plate of press wheel, the pneumatic cylinder mount is fixed in the frame, the upper end and the lower extreme of pneumatic cylinder are equipped with the perforation respectively, and the perforation of upper end is equipped with the internal thread, the upper end of pneumatic cylinder is passed through double-screw bolt and pneumatic cylinder mount and is articulated, the lower extreme is articulated through pin and pneumatic cylinder connecting plate, thereby the height of press wheel is confirmed through the turned angle of the double-screw bolt fixed connection of screw thread and pneumatic cylinder upper end to angle sensor.

Furthermore, the tension sensor is positioned in the seeding extension spring, and two ends of the tension sensor are connected with two ends of the seeding extension spring through tension sensor connecting wires.

Furthermore, the seed falling baffle is a parallelogram, the included angle alpha between the bevel edge of the seed falling baffle and the horizontal plane is 60 degrees, and the included angle beta between the inclined pressing plate and the horizontal plane is 45 degrees.

Further, the stand clamping seat is fixed on the stand through a U-shaped bolt.

Furthermore, the spring shaft is composed of a shaft, a pull rod connecting part and a spring connecting part which are vertically arranged on the shaft, and an included angle gamma between the spring connecting part and the pull rod connecting part is 42 degrees.

Further, the included angle between the hydraulic cylinder and the vertical surface is 45 degrees, and the rotation angle of the hydraulic cylinder is less than or equal to 20 degrees.

The method for pressing the seed furrow by using the variable force type double-disc wheat seed furrow pressing and sowing monomer comprises the following steps:

(1) Fixing a plurality of sowing single bodies on a rack, wherein the plurality of sowing single bodies share one spring shaft;

(2) The adjusting handle is rotated to adjust the sowing depth of the sowing and ditching device; a tension sensor in the sowing depth detection device senses the deformation of a sowing extension spring, so that the depth of the furrow made by the double-disc furrow opener and the sowing depth of seeds are judged; meanwhile, the sowing depth is verified according to the combination of an angle sensor and the rotation angle of the hydraulic cylinder; after the sowing depth data change is obtained through the tension change of the sowing extension spring, the data are transmitted to the controller, and the controller controls the stretching of the hydraulic cylinder so that the pressing wheel adjusts the pressing force according to the actual sowing depth and the predicted sowing depth;

(3) After the seeding single body travels, the double-disc furrow opener digs out a seed ditch, and the oblique pressing plate flattens the W-shaped seed ditch to flatten the bottom of the ditch; the seeds fall from the seed tubes and roll into the seed ditches along the inclined surfaces of the inclined pressing plates, and the seed falling baffle prevents the seeds from splashing out of the seed ditches in the process and reduces the phenomenon of soil return in the seed ditches; after the seeds fall down, the press wheel presses the seeds in the seed ditch,

the seeds are embedded in the soil, and the soil of the plough layer where the seed belts are located is compacted.

The utility model provides a seed ditch that two disc furrow openers opened has protruding phenomenon. Seed ditch suppression is carried out after the seed falls down, carries out the suppression to the seed ditch seedbed, solves the excessive suppression phenomenon in soil top layer, to different soil resistance, the high-quality seed growing environment of soil constitution under the different moisture content adjusts seed ditch suppression intensity in real time for different soil is sowed deeply unanimously, and suppression intensity is the same.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a right side view of the present invention;

FIG. 3 is a schematic structural view of a sowing and ditching device;

FIG. 4 is a side view of FIG. 3;

FIG. 5 is a schematic view showing the connection between the seed furrow constructing means and the seed furrow;

FIG. 6 is a schematic view of the seed furrow creating mechanism;

FIG. 7 is a top view of the seed trench building mechanism with the bevel plate removed;

FIG. 8 is a front view of the bevel plate;

FIG. 9 is a front view of a tube;

FIG. 10 is a schematic structural view of a pipe coupling rod;

FIG. 11 is a side view of FIG. 10;

FIG. 12 is a schematic view showing the construction of a seed furrow compacting device and a sowing depth detecting device;

fig. 13 is a schematic structural view of the hydraulic cylinder: (a) a front view, (b) a side view;

FIG. 14 is a schematic structural view of a tension sensor;

FIG. 15 is an isometric view of an angle sensor;

FIG. 16 is a schematic view of a hydraulic cylinder connecting plate structure;

FIG. 17 is a schematic view showing the connection between the seed furrow suppressing means and the spring working tension adjusting means;

FIG. 18 is an isometric view of a spring shaft fastener;

FIG. 19 is a side view of the pull rod securing member;

FIG. 20 is a top view of the spring axle drawbar;

FIG. 21 is a side view of the spring axle drawbar;

FIG. 22 is a schematic view of the adjustment handle;

FIG. 23 is an isometric view of a spring shaft;

FIG. 24 is a top view of the spring shaft;

FIG. 25 is a schematic view of the structure of the long connecting plate of the press wheel;

figure 26 is a side view of the press wheel short web;

figure 27 is a front view of the press wheel short web;

FIG. 28 is a schematic structural view of a rack cassette;

FIG. 29 is a schematic structural view of a hydraulic cylinder holder;

in the figure: 1. the device comprises a frame, 2, an adjusting handle, 3, a spring shaft, 4, a press limiting plate, 5, a seeding extension spring, 6, a tension sensor, 7, a pipe connecting rod, 8, a pipe, 9, a double-disc furrow opener, 10, a furrow constructing mechanism, 11, a press wheel, 12, U-shaped bolts, 13, an angle sensor, 14, a hydraulic cylinder, 15, a press wheel long connecting plate, 16, a press wheel short connecting plate, 17, a hydraulic cylinder fixing frame, 18, a frame clamping seat, 19, a pin, 20, a spring shaft fastening piece, 21, a hydraulic cylinder connecting plate, 22, a press adjusting bolt, 23, a seeding spring connecting plate, 24, a furrow opener fixing rod, 25, a furrow depth adjusting bolt, 26, a disc pull rod, 27, a seed falling straight pipe, 28, an inclined pressing plate, 29, a seed falling baffle, 30, a pipe adjusting bolt, 31, a connecting plate, 32, a tension sensor connecting wire, 33, a seeding limiting plate, 34, a spring shaft pull rod, 35, a pull rod fixing piece, 301, a pull rod, 303 and a spring connecting part.

Detailed Description

The technical solution of the present invention will be described in detail with reference to the accompanying drawings and examples.

Example 1

The utility model provides a variable-force formula double disc wheat kind ditch suppression seeding monomer, as shown in fig. 1 to 29, include frame 1 and locate the seeding ditching device on frame 1, kind ditch suppression device, spring work tension adjusting device, hydraulic control device and deep detection device of broadcasting, be equipped with frame cassette 18 in the frame 1, seeding ditching device and kind ditch suppression device all articulate with frame cassette 18 side by side through pin 19, seeding ditching device includes double disc furrow opener 9, pipe 8 and kind ditch establishment mechanism 10, double disc furrow opener 9 and kind ditch establishment mechanism 10 all are fixed in pipe 8 lower extreme, the middle part of pipe 8 is equipped with seeding spring connecting plate 23, kind ditch suppression device includes press wheel 11 and press wheel connecting plate, press wheel 11 articulates the lower extreme of locating the press wheel connecting plate, the top of pipe 8 and press wheel connecting plate all articulates through pin 19 and frame cassette 18, press wheel connecting plate and hydraulic control device connect, pipe 8 and spring work tension adjusting device connect, it includes angle sensor 13 and tension sensor 6 to broadcast dark detection device, angle sensor 13 and hydraulic control device link to each other, tension sensor 6 and spring work tension adjusting device link to each other.

The seed ditch constructing mechanism 10 comprises a seed falling straight pipe 27, a seed falling baffle 29 and an inclined pressing plate 28, the seed falling straight pipe 27 is connected with the seed pipe 8 through a seed adjusting bolt 30, and the relative height of the seed ditch constructing mechanism 10 and the seed pipe 8 can be changed through the seed adjusting bolt 30 so as to adapt to the height of the double-disc furrow opener 9. The left side and the right side of the seed falling straight pipe 27 are provided with seed falling baffles 29, the seed falling baffles 29 are connected through a connecting plate 31, the front end of the seed falling baffle 29 is provided with an inclined pressing plate 28, the outlet of the seed falling straight pipe 27 is positioned in the area enclosed by the seed falling baffles 29, the connecting plate 31 and the inclined pressing plate 28, and the inclined pressing plate 28 is fixed with the seed falling baffles 29 on the two sides through screws.

Specifically, the spring working tension adjusting device consists of a spring shaft 3, a spring shaft fastener 20, an adjusting handle 2, a spring shaft pull rod 34, a pull rod fixing piece 35 and a seeding extension spring 5. The spring shaft 3 is composed of a shaft 301, a pull rod connecting part 302 and a spring connecting part 303, wherein the pull rod connecting part 302 and the spring connecting part 303 are vertically arranged on the shaft 301, and an included angle gamma between the spring connecting part 303 and the pull rod connecting part 302 is 42 degrees.

The spring shaft fastener 20 and the pull rod fixing piece 35 are fixed on the machine frame 1, and the shaft 301 of the spring shaft 3 is fixed on the machine frame 1 through the spring shaft fastener 20.

One end of the spring shaft pull rod 34 is provided with threads, the other end of the spring shaft pull rod 28 is connected with a pull rod connecting part 302 of the spring shaft 3 through a pin, a long hole is formed in the middle of the pull rod fixing part 35, the threaded end of the spring shaft pull rod 34 penetrates through the pull rod fixing part 35 and is in threaded connection with the adjusting handle 2, one end of the seeding extension spring 5 is connected with a spring connecting part 303 of the spring shaft 3, and the other end of the seeding extension spring is connected with the seeding spring connecting plate 23 on the seed tube 8. The working angle of the spring shaft 3 is changed by rotating the adjusting handle 2, thereby adjusting the working tension of the sowing tension spring 5. The tension sensor 6 is positioned in the seeding extension spring 5, and two ends of the tension sensor 6 are connected with two ends of the seeding extension spring 5 through tension sensor connecting wires 32.

Specifically, the vertical furrow opener dead lever 24 that is equipped with in seeding spring connecting plate 23's below, thereby the depth of operation that two disc furrow openers 9 were adjusted through ditching degree of depth adjusting bolt 25 to disc pull rod 26 on two disc furrow openers 9 fixes on furrow opener dead lever 24 through ditching degree of depth adjusting bolt 25, the both sides of pipe 8 upper end are equipped with pipe connecting rod 7, be equipped with the through-hole that supplies pin 19 to pass on the pipe connecting rod 7, pipe 8 is articulated through pipe connecting rod 7 and frame cassette 18, the upper end of pipe 8 is equipped with seeding limiting plate 33.

Specifically, the long connecting plate of press wheel 15 and the short connecting plate 16 of press wheel are constituteed by the long connecting plate of press wheel, and the upper portion of the long connecting plate 15 of press wheel is equipped with press limiting plate 4, and the upper end of the long connecting plate 15 of press wheel is equipped with the through-hole that supplies pin 19 to pass, and the lower extreme of the long connecting plate 15 of press wheel is equipped with multiunit regulation hole, and the short connecting plate 16 of press wheel passes through press adjusting bolt 22 and the long connecting plate 15 of press wheel is connected.

Hydraulic control device includes pneumatic cylinder 14, pneumatic cylinder mount 17 and pneumatic cylinder connecting plate 21, the both ends of pneumatic cylinder connecting plate 21 are fixed on the long connecting plate 15 of press wheel, pneumatic cylinder mount 17 is fixed in frame 1, the upper end and the lower extreme of pneumatic cylinder 14 are equipped with the perforation respectively, and the perforation of upper end is equipped with the internal thread, the upper end of pneumatic cylinder 14 is passed through double-screw bolt and pneumatic cylinder mount 17 and is articulated (for preventing that the nut on the double-screw bolt from droing, be equipped with the round hole at the tip of double-screw bolt along the diametric (al) direction, round hole department inserts the cylindric lock and fastens, prevent that the nut pine from taking off). The lower end is hinged with a hydraulic cylinder connecting plate 21 through a pin, and the angle sensor 13 is fixedly connected with a stud at the upper end of the hydraulic cylinder 14, so that the height of the press wheel 11 is determined through the rotation angle of the hydraulic cylinder 14. The included angle between the hydraulic cylinder 14 and the vertical surface is 45 degrees, and the rotation angle of the hydraulic cylinder 14 is less than or equal to 20 degrees.

The seed falling baffle 29 is a parallelogram, the included angle alpha between the bevel edge of the seed falling baffle 29 and the horizontal plane is 60 degrees, and the included angle beta between the inclined pressing plate 28 and the horizontal plane is 45 degrees.

The frame clamping seat 18 is fixed on the frame 1 through a U-shaped bolt 12.

The upper part of the seed dropping straight pipe 27 is sleeved in the seed pipe 8, and the relative height with the seed pipe 8 can be changed through the seed pipe adjusting bolt 30, so that the height adjustment of the double-disc furrow opener 9 is adapted. The lower part of the seed dropping straight pipe 27 is welded with a seed dropping baffle 29, and the inclined pressing plate 28 is fixed with the seed dropping baffle 29 through a screw. The inclined pressing plate 28 flattens the seed ditch, and the seed falling baffle 29 reduces the soil return of the seed ditch.

The welding of suppression limiting plate 4 is on the long connecting plate 15 of suppression wheel, and pipe 8 not only plays the effect of carrying the seed, still plays the effect of a roof beam, with seeding spring coupling board 23, the welding of union coupling pole 7, seeding limiting plate 33 welding is on pipe 8. The hydraulic cylinder fixing frame 17, the spring shaft fastening piece 20 and the pull rod fastening piece 35 are all welded on the rack 1, and two ends of the hydraulic cylinder connection 21 are respectively welded on the two pressing wheel long connecting plates 15. The lower part of the seed falling straight pipe 27 is welded with a seed falling baffle 29, the inclined pressing plate 28 flattens the seed ditch, and the seed falling baffle 29 reduces the soil return of the seed ditch.

Seed ditch suppression device passes through the stroke of pneumatic cylinder 14, the regulation of power, promotes suppression wheel 11 and pushes down or the lifting, promotes pneumatic cylinder connecting plate 21 during the extension, makes the long connecting plate 15 downstream of suppression wheel, and increase suppression intensity drives hydraulic cylinder connecting plate 21 during the return stroke and promotes, makes the long connecting plate 15 lifting of suppression wheel, reduces suppression pressure.

The sowing depth detection device senses the deformation quantity of the sowing extension spring 5 through the tension sensor 6, so that the sowing depth of the double-disc furrow opener 9 and the sowing depth of seeds are judged, and meanwhile, the sowing depth is verified through model calculation according to the combination of the angle sensor 13 and the rotating angle of the hydraulic cylinder 14, and the effect of real-time sowing depth detection is achieved. Simultaneously, after the seeding extension spring 5 pulling force changes and gets the data change of sowing deeply, the suppression wheel 11 adjusts the pressure in the town according to actual sowing deeply with the prediction depth, when 9 resistance grow of two disc furrow openers, seeding extension spring 5 is tensile, tension sensor 6 detects the change, gives the controller with data transmission, controller control hydraulic cylinder 14's hydraulic stem moves up and reduces pressure in the town, so on, reach according to the soil state, the purpose of the pressure in the town is adjusted in real time to the soil condition, regulation and control depth of sowing.

The method for sowing by utilizing the variable-force double-disc wheat seed furrow pressing sowing monomer comprises the following steps:

(1) A plurality of sowing single bodies are fixed on a frame 1, and share a spring shaft 3;

(2) The adjusting handle 2 is rotated to adjust the sowing depth of the sowing and ditching device; a tension sensor 6 in the sowing depth detection device senses the deformation of the sowing extension spring 5, so that the depth of the furrow opened by the double-disc furrow opener 9 and the sowing depth of the seeds are judged; meanwhile, the sowing depth is verified through model calculation according to the combination of the angle sensor 13 and the rotation angle of the hydraulic cylinder; after the sowing depth data change is obtained through the tension change of the sowing extension spring 5, the data are transmitted to the controller, and the controller controls the stretching of the hydraulic cylinder 14, so that the pressing wheel 11 adjusts the pressing force according to the actual sowing depth and the predicted sowing depth;

(3) After the seeding single body travels, the double-disc furrow opener 9 opens a seed ditch, and the inclined pressing plate 28 flattens the opened W-shaped seed ditch to flatten the ditch bottom; the seeds fall from the seed tube 8 and roll into the seed ditch along the inclined plane of the inclined pressing plate 28, and the seed falling baffle plate 29 prevents the seeds from splashing out of the seed ditch in the process and reduces the phenomenon of soil return in the seed ditch; after the seed falls down, press wheel 11 carries out kind of ditch suppression to the seed in the kind of ditch again, makes the seed inlay in soil, and the soil on the arable layer of seed tape place is by the compaction, and press wheel 11 highly is adjusted according to the depth of planting in real time by pneumatic cylinder 14.

When the seeding monomer works in the field, the double-disc furrow opener 9 is used for opening a seed ditch, and the inclined pressing plate 28 is used for flattening the opened W-shaped seed ditch to ensure that the bottom of the ditch is flat. The seeds fall from the seed tube 8 and roll into the seed groove along the inclined plane of the inclined pressing plate 28, and the seed falling baffle plate 29 prevents the seeds from splashing out of the seed groove in the process, reduces the phenomenon of soil return in the seed groove and creates a good environment for the falling of the seeds. The seed falls behind, and the detection device of sowing deeply obtains the depth of planting according to sensor data, and the comparison is predetermine and is sowed deeply, and hydraulic pressure, 14 regulation and control press wheels 11 again carry out the kind ditch suppression to the seed in the kind ditch after that, make the seed inlay in soil, and the soil compaction on seedtape place plough layer founds high-quality seedbed structure, reaches the depth of planting unanimously, and the even effect of suppression pressure.

Finally, it should be noted that: the above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same, and those skilled in the art should understand that any equivalent substitution or obvious modification of the embodiments of the present invention without changing the performance or usage thereof without departing from the spirit of the present invention should be covered within the scope of the present invention.

Claims (10)

1. The utility model provides a two disc wheat kind of a kind of variable force formula suppression seeding monomer, a serial communication port, include the frame and locate the seeding ditching device in the frame, kind of a ditch suppression device, spring work pulling force adjusting device, hydraulic control device and deep detection device of broadcasting, be equipped with the frame cassette in the frame, seeding ditching device and kind of a ditch suppression are articulated with the frame cassette side by side through the pin, seeding ditching device includes two disc furrow openers, pipe and kind of a ditch structure mechanism, two disc furrow openers and kind of a ditch structure mechanism all are fixed in the pipe lower extreme, the middle part of pipe is equipped with seeding spring connecting plate, kind of a ditch suppression device includes press wheel and press wheel connecting plate, the articulated lower extreme of locating the press wheel connecting plate of press wheel, the top of pipe and press wheel connecting plate is all articulated through pin and frame cassette, press wheel connecting plate and hydraulic control device are connected, pipe and spring work pulling force adjusting device are connected, deep detection device of broadcasting includes angle sensor and hydraulic control device, angle sensor and hydraulic control device link to each other, pulling force sensor and spring work pulling force adjusting device link to each other.

2. The variable-force double-disc wheat seed ditch suppression seeding monomer according to claim 1, wherein the seed ditch constructing mechanism comprises a seed falling straight pipe, seed falling baffles and inclined pressing plates, the seed falling straight pipe and the seed pipe are connected through a pipe adjusting bolt, the seed falling baffles are arranged on the left side and the right side of the seed falling straight pipe and connected through a connecting plate, the inclined pressing plates are arranged at the front ends of the seed falling baffles, the outlet of the seed falling straight pipe is located in the area enclosed by the seed falling baffles, the connecting plate and the inclined pressing plates, and the inclined pressing plates are fixed with the seed falling baffles on the two sides through screws.

3. The variable-force double-disc wheat seed furrow suppression seeding monomer of claim 1, wherein the spring working tension adjusting device comprises a spring shaft, a spring shaft fastener, an adjusting handle, a spring shaft pull rod, a pull rod fastener and a seeding extension spring, the spring shaft fastener and the pull rod fastener are both fixed on the frame, the spring shaft is fixed on the frame through the spring shaft fastener, one end of the spring shaft pull rod is provided with a thread, the other end of the spring shaft pull rod is connected with the spring shaft through a pin, the middle part of the pull rod fastener is provided with a long hole, the threaded end of the spring shaft pull rod passes through the pull rod fastener and is in threaded connection with the adjusting handle, one end of the seeding extension spring is connected with the spring shaft, and the other end of the seeding extension spring is connected with a seeding spring connecting plate on the seed tube.

4. The variable-force double-disc wheat seed furrow suppression seeding monomer as claimed in claim 1, wherein a furrow opener fixing rod is vertically arranged below the seeding spring connecting plate, a disc pull rod on the double-disc furrow opener is fixed on the furrow opener fixing rod through a furrowing depth adjusting bolt, pipe connecting rods are arranged on two sides of the upper end of each pipe, through holes for pins to pass through are arranged on the pipe connecting rods, each pipe is hinged with the rack clamping seat through the pipe connecting rods, and a seeding limiting plate is arranged at the upper end of each pipe.

5. The variable force type double-disc wheat seed furrow press sowing monomer of claim 1, wherein the press wheel connecting plate is composed of a press wheel long connecting plate and a press wheel short connecting plate, a press limiting plate is arranged on the upper portion of the press wheel long connecting plate, the upper end of the press wheel long connecting plate is hinged to the rack clamping seat, a plurality of groups of adjusting holes are arranged on the lower end of the press wheel long connecting plate, and the press wheel short connecting plate is connected with the press wheel long connecting plate through press adjusting bolts.

6. The variable-force double-disc wheat seed furrow press seeding monomer of claim 5, wherein the hydraulic control device comprises a hydraulic cylinder, a hydraulic cylinder fixing frame and a hydraulic cylinder connecting plate, two ends of the hydraulic cylinder connecting plate are fixed on the press wheel long connecting plate, the hydraulic cylinder fixing frame is fixed on the frame, the upper end and the lower end of the hydraulic cylinder are respectively provided with a through hole, the through hole at the upper end is provided with an internal thread, the upper end of the hydraulic cylinder is hinged with the hydraulic cylinder fixing frame through a stud, the lower end of the hydraulic cylinder is hinged with the hydraulic cylinder connecting plate through a pin, and the height of the press wheel is determined by fixedly connecting an angle sensor and the stud at the upper end of the hydraulic cylinder through the rotating angle of the hydraulic cylinder.

7. The variable-force double-disc wheat seed furrow suppression seeding unit according to claim 1, wherein the tension sensor is positioned in the seeding extension spring, and two ends of the tension sensor are connected with two ends of the seeding extension spring through tension sensor connecting wires.

8. The variable force type double-disc wheat seed furrow press-sowing unit as claimed in claim 2, wherein the seed falling baffle is a parallelogram, and the included angle α between the inclined edge of the seed falling baffle and the horizontal plane is 60 °, and the included angle β between the inclined pressing plate and the horizontal plane is 45 °.

9. The variable force double-disc wheat furrow suppression seeding unit according to claim 3, wherein the spring shaft comprises a shaft, a pull rod connecting part and a spring connecting part which are vertically arranged on the shaft, and an included angle γ between the spring connecting part and the pull rod connecting part is 42 °.

10. The variable-force double-disc wheat seed furrow press-sowing unit as claimed in claim 6, wherein the included angle between the hydraulic cylinder and the vertical surface is 45 °, and the rotation angle of the hydraulic cylinder is less than or equal to 20 °.

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