CN215269387U - One-groove multi-row single-grain precision dibbler - Google Patents

Abstract

The invention relates to a fine farming and precise fertilization one-ditch multi-row and single-grain precise dibbler, belonging to the field of agricultural machinery and equipment. The device comprises a suspension rack, wherein a reverse-bending chopping knife, a rotary tillage knife, a subsoiler, a fertilizing mechanism and a plane roller are sequentially arranged below the suspension rack from front to back, and a seed metering mechanism, a press wheel and a land leveler are sequentially arranged behind the plane roller; the suspension frame is provided with a front group of seed metering mechanisms and a rear group of seed metering mechanisms and a disc furrow opener, and a seed distributing port of each seed metering mechanism is positioned between two discs of the corresponding disc furrow opener; in the two groups of seed metering mechanisms, two adjacent seed metering mechanisms are distributed in a staggered way, and the two groups of seed metering mechanisms are connected with the same power mechanism. The invention has multiple functions, can realize fine farming, precise fertilization and precise seed distribution, greatly improves the distribution uniformity of seeds, optimizes the spatial distribution of seedlings, and ensures that the group structure is reasonable and the individual growth is robust.

Description

One-groove multi-row single-grain precision dibbler

Technical Field

The utility model relates to an accurate fertilization of meticulous farming multirow single grain precision dibbler belongs to agricultural machine and equips the field, be applicable to at the farming operations such as the one-time completion of hard stubble plot including nine processes, fertilize, granule cereal seeding, have the subsoiling layer, carry the liquid manure, adjust elasticity, change the gas heat, the precision fertilization, lure the root, the accurate cloth kind, the seedling of growing strong, the five functions of fine land farm tools, good soil moisture conservation can reach the standard and the effect of meticulous farming, accurate fertilization, accurate cloth kind. The utility model discloses a hack cutter effectively solves the winding problem of blocking up and straw weeds with the cooperation equipment design of subsoiler.

Background

With the change of rural labor force structure and quantity, the number of personnel engaged in crop production is gradually reduced, and the gradual realization of intensification and large-scale planting through land circulation is a main agricultural operation management mode in the future. The future crop production has a particularly urgent need for mechanized and simplified planting technology and matched agricultural implements. The wheat stubble-attaching no-tillage seeder can realize tillage and seeding integrated operation, greatly reduces the operation links of farming, reduces the investment of manpower and material resources, reduces the cost, improves the benefit, and becomes the mainstream and the focus of research and development of the current wheat seeder.

The prior invention patent 'a full-returning and anti-winding no-tillage combined seed and fertilizer drill with a sliding cutter' (CN201711269137.7) applies for protecting the sliding cutter and a strip rotary tillage combined seed and fertilizer application structure consisting of a fertilizing device, a ditching device and a land wheel; the deep-loosening layered fertilization device applied for protection of a wheat deep-loosening rotary tillage layered fertilization layered sowing machine (ZL201520008539.1) has a structure that fertilizer is applied below a rotary tillage layer and is applied at the middle lower part in the rotary tillage layer by equal-depth fertilization; the deep-loosening layered fertilization shovel which is applied for protection by the prior utility model patent of no-tillage deep-loosening layered fertilization wheat seeder (ZL201420683858.8) is positioned behind a rotary blade, the bottom end of the shovel is 8-15 cm lower than the bottom end of the rotary blade, a fertilizer pipe is arranged at the rear side of the deep-loosening layered fertilization shovel, and the fertilizer pipe is provided with 3-5 fertilizer outlets from top to bottom; there has been utility model patent "wheat maize cotton subsoiling layering fertilization precision seeder" (ZL201420248351.X) and from front to back installs break shovel, end fertilizer pipe, rotary blade, kind fertilizer pipe, first press wheel, single seed metering device, seeding furrow opener and second press wheel in proper order in the lower part of hanging the frame to accomplish subsoiling, divide two-layer fertilization, seeding, press operation. Although the patents have respective advantages, the standards of 'deep plough layer, proper tightness, fertilizer supply and demand, reasonable seed distribution and flat soil moisture preservation' required by high-quality sowing are difficult to achieve, even if a part of the patents have more functions, certain differences exist between the fertilizer application and seed distribution and the requirements of fertilizer demand rules and group regulation of crops, and the structural design has large energy consumption, so that the application in actual production is difficult.

Disclosure of Invention

The utility model aims at prior art's defect, provide a accurate fertilization ditch multirow single grain precision dibbler of meticulous cultivation, can once only accomplish in proper order that straw weeds cut and chop crushing, loose soil, rotary tillage, the accurate layering of fertilizer is executed by row, before sowing the operation of links such as ground surface flattening compaction, the accurate dibble seeding of a ditch multirow single grain of granule grain seed, after sowing compaction leveler leveling.

The utility model comprises a suspension frame, wherein a reverse-bending chopping knife, a rotary tillage knife, a subsoiler, a fertilizing mechanism and a plane roller are sequentially arranged from front to back below the suspension frame, and a seed metering mechanism, a press wheel and a farm tool are sequentially arranged behind the plane roller; the suspension frame is provided with a front group of seed metering mechanisms and a rear group of seed metering mechanisms and a disc furrow opener, and a seed distributing port of each seed metering mechanism is positioned between two discs of the corresponding disc furrow opener; in the two groups of seed metering mechanisms, two adjacent seed metering mechanisms are distributed in a staggered way, and each seed metering mechanism is connected with the same power mechanism.

Further, the conveying mechanisms of the two groups of seed metering mechanisms are connected through a synchronous transmission mechanism.

Further, a tool magazine installation frame is arranged on the suspension rack, the reverse-cranking chopping knife tool magazine with the reverse-cranking chopping knives and the rotary tillage knife tool magazine with the rotary tillage knives are respectively installed at the lower end of the tool magazine installation frame through respective shafts, and the periphery of the shaft of the reverse-cranking chopping knife tool magazine or the rotary tillage knife magazine is provided with the triangular cutter.

Furthermore, the three-edged cutter is in a strip shape, penetrates through the gap of the chopping knife tool magazine or the rotary blade tool magazine and is fixedly connected with the chopping knife tool magazine or the rotary blade tool magazine.

Furthermore, the subsoiler corresponds to the gap between two adjacent rotary blade tool magazines and rotary blade blades and is positioned between the two rotary blade tool magazines and the rotary blade blades.

Furthermore, the fertilizing mechanism comprises a fertilizer box, the fertilizer box is divided into a front fertilizing cavity and a rear fertilizing cavity, the lower bottom of each fertilizing cavity is connected with a corresponding fertilizing pipe, the lower end of each fertilizing pipe is bent towards the rear side, the position of the lower pipe orifice of each fertilizing pipe is sequentially lifted from front to rear, and the bent part is sequentially lengthened.

Furthermore, the seed metering mechanism comprises a seed box, at least one seed outlet is arranged in the seed box, and an arc seed metering device is arranged at the seed outlet; the circular arc seed metering device comprises a strip circular arc plate, the strip circular arc plate is connected with a circular arc plate adjusting rotating shaft through a group of triangular supports, and an adjusting wrench is installed on the circular arc plate adjusting rotating shaft.

Furthermore, the seed discharging mechanism comprises a seed discharging bin arranged on the suspension rack, a seed discharging crawler capable of being connected with the driving mechanism is arranged in the seed discharging bin, and the lower part of the seed discharging crawler corresponds to the seed distributing opening; at least one row of recesses are arranged on the crawler along the length direction of the crawler, each group of recesses are connected through a seed discharging ditch, and the seed discharging ditches form a ring along the length direction of the seeding crawler; the width of the recess is larger than that of the seed discharging groove, and the depth of the recess is the same as that of the seed discharging groove; the lower part of the seed sowing crawler is provided with a comb strip sheet positioned in the seed discharging ditch, and one side of the comb strip sheet far away from the seed discharging ditch is fixed on the inner surface of a rear bin plate of the seed sowing bin.

Furthermore, a seed supplementing bin is arranged in the seed discharging bin, the upper port of the seed supplementing bin is positioned in the middle or lower part of the seed discharging bin, and a seed point supplementing pipe at the lower end of the seed supplementing bin is communicated with the lower part of the lower running side of the seed discharging track.

Furthermore, a reflecting sheet is arranged at the bottom of the recess, and a corresponding photoelectric sensor is arranged below the seed point supplementing pipe.

The utility model discloses following beneficial effect has:

1. the utility model designs nine processes can realize five powerful, can hug closely the preceding stubble, carry out farming, fertilization, seeding operation in proper order, and one-time operation can reach three smart standards moreover, neither mistake farming season, has realized the high quality seeding again. The nine procedures are respectively as follows: stubble cleaning and soil cutting, rotary tillage and soil preparation, deep scarification and bottom breaking, precise fertilization, flat land compaction, disc ditching, precise seed distribution, soil covering and pressing, leveling and soil moisture conservation; five major functions: deep ploughing a layer, lifting water and fertilizer, adjusting tightness and regulating gas and heat, fine fertilizing and root inducing, fine seed distribution and seedling strengthening, fine leveling and soil moisture conservation; the three precision standards are fine cultivation, precise fertilization and precise seed distribution.

2. The utility model discloses a perpendicular chopping of anti-bent chopper is cut with three edged cutter transverse cutting matched with design, can cut and chop crushing incomplete straw and weeds and hard soil, prevents effectively that straw and weeds winding from in the pivot, avoids the clay adhesion in the pivot, prevents twining to prevent that stifled effect is especially outstanding, through preliminary cutting and smashing to hard soil layer in addition, is showing the hacking effect and the soil preparation quality that improve its hou rotary cultivator attachment.

3. The utility model discloses an equipment design that passes subsoiler from rotary blade cluster of rotary cultivator attachment, when the rotary blade of subsoiler both sides is rotatory, can in time strike off earth and straw and weeds that adhere to on the subsoiler, effectively avoid the seeder to appear the problem that blocks up when gluing wet land or straw and the more landmass operation of weeds.

4. The utility model discloses a three fertilization pipe, two adjacent fertilization pipes down the horizontal distance between the mouth of pipe be 14 centimetres, can ensure when sandy soil, loam and clay landmass operation, each soil layer in time returns the soil landfill, and fertilizer is accurate to be executed in corresponding soil layer, can not leak into lower floor's soil often because of returning the soil untimely.

5. The utility model discloses overturned traditional wheat seeder's seed metering cloth kind mode, become earlier seed metering back cloth kind and go on simultaneously for seed metering cloth kind, become in traditional ditch broadcast sowing for a ditch multirow single seed dibble seeding, increase substantially the seed distribution degree of consistency, optimized the spatial layout of seedling, made the colony structure reasonable, the ontogeny is robust.

6. The utility model discloses before broadcasting and on the basis of sowing back suppression, increased land leveling device at the seeder tail end, can level the earth's surface on the one hand, improve and broadcast back earthing quality, bury the seed completely and make the seedbed compact degree, avoid exposing the kind, on the other hand can further rub the earth's surface and smash the soil block, makes the earth's surface soil grain crisp, effectively prevents that soil moisture evaporation scatters and disappears, and the soil moisture preservation effect is outstanding very much.

Drawings

FIG. 1 is a (chain transmission type) structure diagram of a first embodiment of the present invention

FIG. 2 is a left side view of the reverse-twist chopper portion of FIG. 1;

FIG. 3 is a rear view of the seed metering mechanism of FIG. 1;

FIG. 4 is an enlarged view of point A in FIG. 3;

FIG. 5 is a view of the structure of the seed-metering track in FIG. 3;

fig. 6 is a structural view of a second embodiment (motor-driven type) of the present invention;

FIG. 7 is an enlarged fragmentary view of the seed box portion of FIG. 6;

in the figure: 1. a hanging frame, 2, a reverse-bending chopping knife blade, 3, a reverse-bending chopping knife tool magazine, 4, a front rotating shaft, 5, a triangular cutter, 6, a rotary blade, 7, a rear rotating shaft, 8, a rotary blade magazine, 9, a deep scarification shovel, 10, a first fertilizing pipe, 11, a second fertilizing pipe, 12, a third fertilizing pipe, 13, a cylindrical plane compactor, 14, a disc colter, 15, a second gearbox, 16, a track recess ground-sticking precision seed sowing device, 17, a transfer gear set, 18, an eighth gear, 19, an eleventh gear, 20, a press wheel, 21, a farm tool, 22, a seventh gear, 23, a tenth gear, 24, a seed conveying hose, 25, an outer groove wheel type seed sowing device, 26, a gear five, 27, a seed box, 28, a sixth gear, 29, a third fertilizer box, 30, a third gear, 31, a second gear, 32, a second fertilizer box, 33, a first fertilizer box, 34 and a first gear, 35. an outer sheave type fertilizer distributor 36, a fertilizer conveying hose 37, a first gearbox 38, a tool magazine mounting rack 39, a seed discharging bin 40, a seed discharging crawler belt 41, a driving wheel 42, a recess 43, a point supplementing pipe 44, a driven wheel 45, a seed discharging comb 46, a comb strip sheet 48, a seed distributing opening 49, a second seed cleaning brush 50, a reflection type photoelectric sensor 51, a first seed cleaning brush 52, a seed supplementing bin 53, a seed discharging ditch 54, a reflection sheet 55, a circular-arc seed metering device 56, a circular-arc plate adjusting rotating shaft 57, a strip circular-arc plate 58, a triangular support 59, an adjusting wrench 60, a twelfth gear 61 and a thirteenth gear.

The specific implementation mode is as follows:

the present invention will be described in further detail with reference to the accompanying drawings.

The following embodiments are merely illustrative of the present invention and are not intended to limit the present invention, and those skilled in the art can modify the present embodiments as required without inventive contribution after reading the present specification, but all the embodiments are protected by patent laws and protection within the scope of the present invention.

The first embodiment is as follows:

as shown in the figure, on the hanging rack 1 of this embodiment, by preceding to back install anti-song marking knife, rotary blade, subsoiler 9, fertilizing mechanism, plane land roller, seed metering mechanism, press wheel and land leveler 21 in proper order: the suspension frame 1 is provided with a gearbox 37 which can be connected with a power mechanism and is used for being connected with each rotating mechanism so as to drive the rotating mechanisms, and related structures are well known in the art and are not described in detail herein.

The two sides of the front part of the suspension rack 1 are provided with a herringbone tool magazine mounting rack 38, the two lower ends of the tool magazine mounting rack 38 are respectively provided with a reverse-twist chopping cutter shaft and a rotary tillage cutter shaft, a reverse-twist chopping tool magazine 3 is arranged at intervals along the length direction of the reverse-twist chopping cutter shaft, and a reverse-twist chopping blade 2 is arranged on the reverse-twist chopping cutter magazine. As shown in the figure, each reverse-bending chopper bank 3 of the embodiment is provided with 1 reverse-bending chopper blade 2. Three-edged cutters 5 are arranged along the length direction of the reverse-twist chopping knife shaft, each three-edged cutter 5 is in a long strip shape and penetrates through a gap of the reverse-twist chopping knife magazine 3, the three-edged cutters 5 are arranged along the circumferential direction of the reverse-twist chopping knife shaft, the interval between every two adjacent three-edged cutters 5 is 120 degrees, namely, one three-edged cutter 5 is arranged at every gap of every other reverse-twist chopping knife magazine 3 and is fixedly connected with the reverse-twist chopping knife magazine 3. The cross section of each triangular cutter 5 is triangular, and one corner of each triangular cutter 5 faces outwards, namely one cutting edge of each triangular cutter 5 faces outwards. In addition, the shortest distance between any one blade of each triangular cutter 5 and the outer surface of the front rotating shaft is 2-3cm, so that each blade can play a cutting role.

Each rotary blade magazine 8 of the present embodiment is provided with a rotary blade 6. Three triangular cutters are arranged along the length direction of the rotary tillage cutter shaft, and the installation mode of the three-triangular cutters is the same as that of the triangular cutters on the reverse-twist chopper tool magazine, and the installation mode is not repeated.

In the embodiment, the three-edged cutter is arranged on the reverse-twist chopping knife and the rotary tillage knife and is used for cutting off weeds wound on the shaft while working.

In this embodiment, the rotary blade magazine 8 and the rotary blade blades 6 mounted along the rotary blade shaft have a gap at a position corresponding to the position of the sub-soiling shovel 9 at the rear thereof, that is, the rotary blade shaft at this position does not have the rotary blade magazine 8 and the rotary blade blades 6 mounted thereon, in other words, the sub-soiling shovel 9 corresponds to the position of the gap between the adjacent two rotary blade magazines 8 and the rotary blade blades 6. The design can shorten the length of the suspension frame 1, for example, the distance between the front side surface of the subsoiler 9 and the outer surface of the rotary blade shaft is 1-2 cm, so that the structure of the present embodiment is compact, the gravity center moves backwards, the whole machine is more stable when in use, and the rotary blades on the two sides of the subsoiler 9 can timely scrape straw weeds and soil adhered to the left side and the right side of the subsoiler when in rotation.

The cylindrical flat roller of the present embodiment is installed below the suspending frame 1, and the fertilizer box is installed above the suspending frame 1. The whole fertilizer box is divided into a first fertilizer box 33, a second fertilizer box 32 and a third fertilizer box 29 from front to back, the lower bottoms of the first fertilizer box to the third fertilizer box are respectively provided with a fertilizer application opening, and a first fertilizer application pipe 10, a second fertilizer application pipe 11 and a third fertilizer application pipe 12 are respectively connected with the fertilizer application openings. An outer sheave type fertilizer distributor is respectively arranged in each fertilizer box, the shaft of each outer sheave type fertilizer distributor penetrates out of the fertilizer box, gears such as a third gear 30 and a second gear 31 are respectively arranged on the shafts, and the gears are connected through chains in sequence, so that synchronous operation is realized, and adjustment is convenient.

The first to third fertilizing pipes 10, 11, 12 connected to the first to third fertilizer boxes 33, 32, 29 are passed under the first cylindrical flat roller 13 from between the subsoiler 9 and the first cylindrical flat roller 13, and the heights of the lower ports of the first fertilizing pipe 10 located on the front side to the third fertilizing pipe 12 located on the rear side are sequentially increased, and are all bent to the rear side and form bent pipes at the rear side, so that the lower ports thereof are also sequentially rearward in the moving direction, and are used for applying the same or different fertilizers at different positions, thereby realizing precise fertilization. The specific structure in this embodiment is that the horizontal length of the bent pipe at the lower part of the first fertilizing pipe 10 at the front side is 3-5 cm; the horizontal length of the bent pipe at the lower part of the middle second fertilizing pipe 11 is about 15 cm; the horizontal length of the bent pipe at the lower part of the third fertilizing pipe 12 at the rear side is about 15 cm, and the curvature of the bent pipe is smaller than that of the bent pipe at the lower part of the second fertilizing pipe 11; the vertical distance between the lower pipe orifice of the first fertilizing pipe 10 and the lower pipe orifice of the second fertilizing pipe 11 is 8 cm, and the horizontal distance is 14 cm; the lower pipe orifice of the second fertilizing pipe 11 is positioned at the upper part and the rear part of the lower pipe orifice of the first fertilizing pipe 10; the vertical distance between the lower pipe orifice of the second fertilizing pipe 11 and the lower pipe orifice of the third fertilizing pipe 12 is 8 cm, and the horizontal distance is 14 cm; the lower pipe orifices of the third fertilizing pipe 12 are positioned at the upper part and the rear part of the lower pipe orifice 11 of the second fertilizing pipe; when the seeder works, the lower pipe orifices of the three fertilizing pipes are 8-10 cm away from the ground surface.

Two sets of disk furrow openers and precision seed metering mechanisms which are arranged in tandem are arranged behind the first cylindrical plane roller 13, and a pressing wheel 20 and a land leveler 21 are sequentially arranged behind the first cylindrical plane roller. In each group of the disk furrow openers and the precision seed sowing mechanisms, the precision seed sowing mechanisms are positioned behind the disk furrow openers, for example, in one group at the front side, and the disk furrow openers 14 are positioned in front of the corresponding precision seed sowing mechanisms. The leveler 21 is woven by bamboo branches, is arranged at the lower part of the tail end of the hanging rack 1 and is used for covering ditches, filling pits and leveling land, enabling soil particles to be more crisp and broken, preserving soil moisture and resisting drought.

The seed sowing mechanism of the embodiment comprises a seed bin 27, two seed discharging ports of the seed bin 27 are respectively connected with a precise seed sowing mechanism through a seed conveying hose 24, two seed discharging ports of the seed bin 27 are respectively provided with an outer fluted-wheel type seed sowing device 25, a shaft of each outer fluted-wheel type seed sowing device is respectively provided with a fifth gear 26 and a sixth gear 28, and the fifth gear and the sixth gear are connected with gears on shafts of each outer fluted-wheel type fertilizer sowing device in each fertilizer box through chains to realize synchronous transmission.

Two rows (namely two groups) of precise seed metering mechanisms are connected below the seed bin 27, and in the two groups of seed metering mechanisms, two adjacent seed metering mechanisms are distributed in a staggered manner, namely, a certain seed metering mechanism in the front group of seed metering mechanisms and the adjacent seed metering mechanisms in the rear group of seed metering mechanisms are staggered with each other along the transverse direction, so that the distance between the seed metering mechanisms in the same group is increased, the mutual influence among the seed metering mechanisms is reduced, the trafficability is improved, and the straw jam weeds are prevented. Each precision seed metering mechanism of the embodiment is shown in fig. 2 to 4, and comprises a seed metering bin 39, wherein the upper end of the seed metering bin 39 is a seed inlet, an upper cover can be installed, and the lower end of the seed metering bin is provided with a seed distributing opening. The front chamber plate of the seed discharging chamber 39 close to the furrow opener 14 is a vertical plate, the lower part of the rear chamber plate is gradually inclined towards the front chamber plate, and the front chamber plate and the rear chamber plate form a seed distributing opening 48 at the lower end of the seed discharging chamber. A seed-metering crawler 40 is arranged at the inner side of the inclined part of the rear bin plate. The mounting structure of the seed-metering crawler 40 is: the side wall of the seed discharging bin is respectively provided with a driving shaft and a driven shaft, and the driving shaft can be connected with an external driving mechanism. The driving shaft and the driven shaft are respectively provided with a driving wheel 41 and a driven wheel 44 which are matched with the seed-metering crawler 40. The seed-metering crawler 40 of the present embodiment is an annular crawler, the inner surface of which is a positioning groove arranged in parallel, and the direction of the positioning groove is perpendicular to the running direction of the seed-metering crawler, so as to facilitate the replacement of different crawlers according to the situation of seeds. The rear bin plate above the seed-metering crawler 40 is disposed above it to ensure that the seeds are smoothly directed to the seed-distribution opening 48. The seed distributing opening 48 is positioned at the lower end of the same group of disc openers 14 and is embedded between two opening discs of the disc openers 14.

The outer surface of the seed-metering crawler 40 of the present embodiment is provided with a pocket 42 along the moving direction thereof, the size of the pocket 42 is adapted to the size of the seeds, and the seed-metering crawler 40 with the pockets 42 having different shapes and sizes is adopted for carrying and conveying the seeds for different seeds. The edge of a kind of recess on the seed track 40 of the present embodiment is in a track shape, which is suitable for wheat seeding, or the edge of the recess 42 on the seed track is in a circular shape, which is suitable for corn seeding. The shape of the pocket 42 of this embodiment may also be elliptical.

The track 40 of this embodiment is provided with at least one row of pockets along its direction of movement, in this embodiment five rows of pockets are used, each row consisting of a set of pockets 42 spaced apart from one another. The pockets 42 in two adjacent rows of pockets are arranged in a staggered manner, namely: in two adjacent recess rows, the central point of any recess in one row corresponds to the midpoint position of the recess gap in the other row. In this embodiment, each recess 42 has an arc-shaped bottom surface or a flat bottom surface, and the edge of the bottom surface is connected to the bottom surface through the arc-shaped surface.

Between the pockets 42 of the same pocket row there is a discharge chute 53 connecting the pockets 42, the discharge chute 53 forming a closed loop in the direction of movement of the seed track 40. The width of the seed discharge groove 53 is narrower than the width of the pockets, for example, the major axis of the oval shaped pocket is 8 mm long, the minor axis is 4 mm long, and the depth is 3 mm, and the horizontal distance between the outermost row of pockets and the edge of the track is 1 cm. The width of the seed discharge groove 53 may be 1 mm, and the groove depth thereof may be 3 mm; i.e. the depth of the seed discharge groove is the same as the depth of the recess.

At the seed distributing port 48, a seed discharging comb 45 is arranged on the rear bin plate of the seed discharging bin, the seed discharging comb 45 comprises a group of comb strip pieces 46 which extend forwards, the number and the positions of the comb strip pieces 46 correspond to those of the seed discharging grooves, the seed distributing port 48 is embedded in the seed discharging grooves, when the seed discharging crawler 40 rotates, once falling seeds are discharged in the concave 42 under the action of gravity, and after the seeds touch the comb strip pieces 46, the seeds are forcibly pushed out of the concave 42 to be discharged and fall under the squeezing and pushing action of the comb strip pieces 46, so that the seeding effect is ensured.

On the back storehouse board of this embodiment kind of storehouse, have reseeding storehouse 52 to install in kind of storehouse 39, through hoop and screw fixation on the medial surface of preceding storehouse board, conveniently dismantle the change. The upper end of the reseeding bin 52 is open and is positioned in the middle or lower part of the seed discharging bin 39 so as to ensure that seeds enter the reseeding bin 52. The lower port of the seed replenishing bin 52 is connected with a group of seed point replenishing pipes 43, and the number of the seed point replenishing pipes 43 is the same as that of the pocket rows. The lower part of the seed point-supplementing pipe 43 is smoothly bent toward the seed-sowing track 40, and the lower mouth of each seed point-supplementing pipe 43 faces the row of the pockets on the seed-sowing track 40 and is spaced from the outer surface of the seed-sowing track 40 by half the depth of the pocket 42, so that the supplemented seeds can accurately enter the pocket 42.

A second seed cleaning brush 49 and a first seed cleaning brush 51 are respectively arranged above and below the seed point-supplementing pipe. The first seed cleaning brush 51 located above the seed supply tube 43 is used for cleaning excess seeds which directly descend from the seed chamber 39 along the seed track 40 but are not embedded in the pocket 42, and the second seed cleaning brush 49 is used for further cleaning excess seeds which are not cleaned by the first seed cleaning brush 51 and seeds which are sent out from the seed supply tube 43 and are not embedded in the pocket 42. Through two-stage cleaning, the number of the sown particles of the seeds can be ensured.

In addition, a reflective sheet is arranged at the bottom of each recess 42 in the embodiment, and a reflective photoelectric sensor 50 is fixed below the lower nozzle of each seed point supplementing pipe, so that whether a cavity exists in each recess 42 is monitored, and timely supplementing is performed.

The press wheel 20 of this embodiment is located between the seed distribution port 48 of the seed discharging bin 39 of 21 and rear side, and it is connected with the suspension frame through the axle and the lift cylinder at the axle both ends, and the lift of the steerable press wheel of lift cylinder.

In the present embodiment, two external fluted-wheel seed sowing devices are respectively arranged in each sub-box, and the pipelines at the lower ends of the seed sowing devices are respectively connected with two rows of seed sowing mechanisms. The shaft of each outer fluted-wheel type seed sowing device penetrates through the seed box and is connected with the gear, and each gear is connected with the gear on the shaft of each fertilizer box through the chain, so that the consistency of the seed sowing speed and the fertilizing speed of the embodiment is realized, and the precision of sowing and fertilizing is realized.

An eleventh gear 19 is arranged on a shaft of the press wheel 20 of the embodiment and is connected with a gear on a power input shaft of the second gearbox 15 through a chain; a gear on a power output shaft of the second gearbox 15 is connected with a gear at one end of the power transmission shaft so as to drive the power transmission shaft to rotate; the seventh gear 22 is installed on the driving shaft of the seeding crawler 40, and the power transmission shaft is installed with power transmission gears at certain intervals, and the power transmission gears are connected with the corresponding seventh gear 22 to drive each seeding crawler to rotate synchronously.

Example two

As shown in fig. 6, the basic structure of this embodiment is the same as that of the first embodiment, and the description of the same parts is omitted here.

Unlike the first embodiment, the seed box of the present embodiment does not use an external grooved wheel type seed meter, but uses two circular arc seed meters 55. The arc seed metering device 55 comprises a long arc plate 57 which is tightly attached to a seed metering opening; an arc plate adjusting rotating shaft 56 parallel to the long arc plate is arranged at the upper part of the long arc plate 57; the outer surface of the long arc plate 57 is tightly contacted with the seeding opening and can completely seal the seeding opening; the inner surface of the long arc plate 57 is fixed on the arc plate adjusting rotating shaft 56 through a row of triangular supports 58; one end of the arc plate adjusting rotating shaft 56 is provided with an adjusting wrench 59; the adjustment wrench 59 is pulled left and right to slide the long arc plate 57 along the radian of the seed discharge opening, thereby adjusting the size of the opening of the seed discharge opening and the number of the lower rows of seeds.

The suspension frame of the embodiment is provided with a motor, one end of a shaft of the motor is provided with a thirteenth gear 61, and one end of an outer sheave type fertilizer distributor penetrating through the first fertilizer box, the second fertilizer box and the third fertilizer box is respectively provided with a twelfth gear, a second gear and a third gear; they are connected to each other by a chain and to the thirteenth gear by a chain.

Claims (10)

1. A one-ditch multi-row single-grain precise dibbler comprises a suspension rack and is characterized in that: a reverse-bending chopping knife, a rotary tillage knife, a subsoiler, a fertilizing mechanism and a plane roller are sequentially arranged from front to back below the suspension rack, and a seed metering mechanism, a press wheel and a land leveler are sequentially arranged behind the plane roller; the suspension frame is provided with a front group of seed metering mechanisms and a rear group of seed metering mechanisms and a disc furrow opener, and a seed distributing port of each seed metering mechanism is positioned between two discs of the corresponding disc furrow opener; in the two groups of seed metering mechanisms, two adjacent seed metering mechanisms are distributed in a staggered way, and each seed metering mechanism is connected with the same power mechanism.

2. The one-groove multi-row single-grain precision jukebox of claim 1, wherein: the conveying mechanisms of the two groups of seed metering mechanisms are connected through a synchronous transmission mechanism.

3. The one-trench-multiple-row single-seed precision jukebox of claim 1 or 2, wherein: the hanging rack is provided with a tool magazine installation rack, the reverse-twist chopper tool magazine provided with reverse-twist choppers and the rotary blade tool magazine provided with rotary blades are respectively installed at the lower end of the tool magazine installation rack through respective shafts, and the peripheries of the shafts of the reverse-twist chopper tool magazine or the rotary blade tool magazine are provided with the triangular cutters.

4. The one-groove multi-row single-grain precision jukebox of claim 3, wherein: the three-edged cutter is in a strip shape, and the three-edged cutter passes through a gap of the chopping knife tool magazine or the rotary tillage knife tool magazine and is fixedly connected with the chopping knife tool magazine or the rotary tillage knife tool magazine.

5. The one-trench-multiple-row single-seed precision jukebox of claim 1 or 2, wherein: the subsoiler corresponds to the gap between two adjacent rotary blade tool magazines and rotary blade blades and is positioned between the two rotary blade blades.

6. The one-groove multi-row single-grain precision jukebox of claim 1 or 2, wherein: the fertilizing mechanism comprises a fertilizer box, the fertilizer box is divided into a front fertilizing cavity and a rear fertilizing cavity, the lower bottom of each fertilizing cavity is connected with a corresponding fertilizing pipe, the lower end of each fertilizing pipe is bent towards the rear side, the position of the lower pipe orifice of each fertilizing pipe is sequentially lifted from front to rear, and the bent part is sequentially lengthened.

7. The one-trench-multiple-row single-seed precision jukebox of claim 1 or 2, wherein: the seed metering mechanism comprises a seed box, at least one seed outlet is arranged in the seed box, and an arc seed metering device is arranged at the seed outlet; the circular arc seed metering device comprises a strip circular arc plate, the strip circular arc plate is connected with a circular arc plate adjusting rotating shaft through a group of triangular supports, and an adjusting wrench is installed on the circular arc plate adjusting rotating shaft.

8. The one-trench-multiple-row single-seed precision jukebox of claim 1 or 2, wherein: the seed discharging mechanism comprises a seed discharging bin arranged on the suspension rack, a seed discharging crawler capable of being connected with the driving mechanism is arranged in the seed discharging bin, and the lower part of the seed discharging crawler corresponds to the seed distributing opening; at least one row of recesses are arranged on the crawler along the length direction of the crawler, each group of recesses are connected through a seed discharging ditch, and the seed discharging ditches form a ring along the length direction of the seeding crawler; the width of the recess is larger than that of the seed discharging groove, and the depth of the recess is the same as that of the seed discharging groove; the lower part of the seed sowing crawler is provided with a comb strip sheet positioned in the seed discharging ditch, and one side of the comb strip sheet far away from the seed discharging ditch is fixed on the inner surface of a rear bin plate of the seed sowing bin.

9. The one-groove multi-row single-grain precision jukebox of claim 8, wherein: a seed replenishing bin is arranged in the seed discharging bin, the upper port of the seed replenishing bin is positioned in the middle or lower part of the seed discharging bin, and a seed point replenishing pipe at the lower end of the seed replenishing bin is communicated with the lower part of the lower running side of the seed discharging crawler belt.

10. The one-groove multi-row single-grain precision jukebox of claim 8, wherein: the bottom of the recess is provided with a reflective sheet, and a corresponding photoelectric sensor is arranged below the seed point supplementing pipe.

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