CN217608243U - Wheat no-tillage seeding ditching all-in-one - Google Patents

Abstract

The utility model discloses a wheat no-tillage seeding ditching all-in-one, including frame, rotary tillage mechanism, fertilizing mechanism, sowing mechanism and ditching mechanism, the rotatable cross connection of rotary tillage mechanism in the lower part of frame, each fertilizer discharging pipe downwardly extending of fertilizing mechanism is in corresponding area rotary cutter front side department, each seed metering pipe downwardly extending of sowing mechanism is in corresponding area rotary cutter rear side department, ditching mechanism mainly by the ditching cutter of arrangeeing in rotary tillage mechanism to and arrange in the frame, just corresponding to the design plough of ditching cutter rear side department forms, the both sides of design plough have the design pterygoid lamina of ranging back, and outside width between the design pterygoid lamina of both sides corresponds to the width of the ditch that will open in the field. The utility model discloses at the rotary tillage propulsion in-process, the ditching cutter can effectively loosen soil soon, and the design plough can be dialled the soil reposition of redundant personnel of loosening soon and the compaction is stereotyped, forms the wheat drill that collects the no-tillage area and revolves, sow, fertilize, ditching function in an organic whole.

Description

Wheat no-tillage seeding ditching all-in-one

Technical Field

The utility model relates to a wheat seeder, in particular to a wheat seeder integrating no-tillage belt rotation, seeding, fertilization and ditching functions.

Background

In the farmland, in order to collect storm runoff, remove waterlogging, drain water, prevent and control soil and the like, drainage ditches need to be arranged in the farmland. In the current modern seeding operation, due to the structural limitation of the seeding machinery, the drainage ditch is independently arranged after the field seeding is finished, and the drainage ditch cannot be arranged while the seeding is carried out, which is most obvious in the wheat seeding production.

The modern seeding of wheat is realized in stubble-carrying field by a wheat no-tillage drill seeder at present. The wheat no-tillage drill seeder is an agricultural instrument which replaces manual work and completes the steps of rotating a no-tillage belt (namely, only carrying out rotary tillage on the seeding belt, and keeping the area between the seeding belts in a no-tillage state), seeding, fertilizing and the like in one step, has relatively less tillage on field soil, and has the technical advantages of high operation efficiency, standard seeding, relatively dispersed and separated fertilizer and seeds, effective prevention of soil erosion, soil moisture conservation and the like.

However, the existing wheat no-tillage drill has only the functions of no-tillage belt rotation, seeding and fertilizing, and cannot realize the opening of the drainage ditch in the advancing process of the seeding operation. The drainage ditch needs to adopt a special furrow opener for carrying out ditching operation in the field with the sown wheat, so that the operation amount can be increased, the treading pressure on the field with the sown wheat can be inevitably caused, the emergence rate and the growth vigor of the wheat are directly influenced, and the advantage of no-tillage technology is not favorably exerted.

Among the disclosed technologies, there are technologies for integrating a furrow opener in a rotary cultivator, for example, the technologies disclosed in chinese patent literature are "sugarcane deep scarification rotary tillage furrow opener" (publication No. CN 102742388A, published japanese 2012, 10 and 24 days) "and" a rear-mounted rotary tillage furrow opener "(publication No. CN 201336800Y, published japanese 2009, 11 and 4 days). In the technologies, a furrow plough is arranged at the rear side of the rotary cultivator, and ditching operation is synchronously carried out on the rotary cultivated soil in the rotary cultivation propelling process, for example, the technology with the publication number of CN 102742388A; or a group of cutters with larger rotating diameter is formed on the rotary cultivator, and the cutters with larger rotating diameter synchronously carry out ditching operation in the rotary tillage propelling process, for example, the technology with the publication number of CN 201336800Y. In the rotary tillage propulsion process, although the ditching effect is barely formed in the field, the ditches are not standard, difficult to shape and poor in stability, are easily covered by side-slipping soil and/or rear-flying soil, and cannot play the due role of the ditches.

SUMMERY OF THE UTILITY MODEL

The technical purpose of the utility model is that: the special characteristic that the drainage ditch needs to be set up to above-mentioned farmland to and prior art's not enough, provide a collection no-tillage area and revolve, sow, fertilize, ditching function in an organic whole, and the ditch of digging out is standard, the good wheat no-tillage seeding ditching all-in-one of design.

The technical purpose of the utility model is realized through the following technical scheme, a wheat no-tillage seeding ditching all-in-one, include:

-a frame, said frame being towed on a power plant;

the rotary tillage mechanism is rotatably and transversely connected to the lower part of the rack, and multiple sets of belt rotary cutters are arranged on a rotary tillage main shaft of the rotary tillage mechanism at intervals along the length direction;

-a fertilizing mechanism connected transversely to the upper part of the frame, the fertilizing mechanism having a plurality of fertilizing tubes corresponding to the respective rotary cutters on the rotary tillage mechanism, each fertilizing tube extending downwards at the front side of the corresponding rotary cutter;

-a sowing mechanism transversely connected to an upper portion of the frame, the sowing mechanism having a plurality of seed tubes corresponding to respective rotary blades on the rotary tilling mechanism, each seed tube extending downward at a rear side of the corresponding rotary blade;

the ditching mechanism mainly comprises ditching cutters distributed on the rotary tillage mechanism and shaping plows distributed on the rack and corresponding to the rear sides of the ditching cutters;

the shaping plough is provided with shaping wing plates extending backwards on two sides, and the width of the outer side between the shaping wing plates on the two sides corresponds to the width of a ditch to be opened in the field.

The technical measures are based on a wheat no-tillage drill seeder, and the ditching mechanism is formed by arranging a ditching cutter on the rotary tillage mechanism and arranging a corresponding shaping plough at the rear side. In the rotary tillage propulsion process, the ditching cutter on the rotary tillage mechanism can effectively loosen the soil, and the shaping plough can divide and pull the loosened soil and compact and shape the loosened soil, so that the wheat drill seeder integrating the functions of no-tillage belt rotation, seeding, fertilization and ditching is formed.

The ditch that above-mentioned technical measure was opened compares in the ditch that relies on furrow plough or area rotary cutter utensil to open, and the design plough can be to the soil of ditching cutter unscrewing, shunts and the shaping of compaction, by the difficult landing of the both sides soil of compaction, and stability is good, back raise and fly soil on the one hand by the design plough block, on the other hand by the design plough compaction and be difficult for dropping, covering in the ditch of opening, it is thus clear that the ditch of opening is standard, the design is good, can effectively exert the effect that the escape canal should have.

As one of the preferred schemes, the ditching cutters arranged on the rotary tillage mechanism are two groups arranged at intervals along the length direction of a rotary tillage main shaft of the rotary tillage mechanism;

the effective rotary tillage width between the two groups of ditching cutters is at least equal to the outer width between the shaping wing plates at the two sides of the shaping plough.

The technical measures can effectively meet the technical requirements of ditching, ensure the propelling track range of the shaping plough to be always in the rotary tillage range of the ditching cutter, reduce the propelling resistance of the shaping plough and ensure the reliable and standard forming of the ditches; and the technical requirements of no-tillage operation are effectively met, and the influence on the no-tillage rotation operation is reduced.

Furthermore, the ditching cutter is arranged on a rotary tillage main shaft of the rotary tillage mechanism through a ditching cutter head;

the tool tips of the two groups of ditching tools distributed on the rotary tillage mechanism face to form an opposite matching relationship; and the blades of the two groups of ditching cutters are in staggered fit in the circumferential direction.

By adopting the technical measures, on one hand, the ditching cutter effectively avoids (at least reduces) the influence on the no-tillage belt rotation operation; in the ditching and rotary tillage process, the ditching cutter head can form preliminary shaping and compacting effects on soil on two sides of a ditching and rotary tillage area so as to improve the sufficient shaping effect under the shunting and compacting operation of a shaping plough; the existence of the ditching cutter head of the three aspects effectively reduces the extension length of the ditching cutter, thereby being beneficial to improving the rigidity of the ditching cutter and being capable of bearing larger rotary tillage torque.

As one of the preferable schemes, the effective rotary tillage depth of the ditching cutter is at least equal to the downward extension height of the bottom end of the shaping plough;

and the bottom end of the shaping plough extends downwards to a height which is greater than the effective rotary tillage depth of the rotary tillage mechanism with the rotary cutter.

By adopting the technical measures, on one hand, the shaping plough is pushed in the loosening area of the ditching cutter, the resistance of the shaping plough is small, and the ditches formed by shunting and compacting are standard; the depth of the ditches which are excavated can be ensured to be larger than the rotary depth of the no-tillage belt, drainage and waterlogging removal are facilitated, and the water which is immersed and spread in the soil is beneficial to soil moisture conservation, so that the effect of the drainage ditch is maximized as far as possible.

Furthermore, the front side of the shaping plough is a flow dividing fish mouth structure with the width gradually shrinking from back to front;

the shaping plough is of a flat-bottom structure, and the bottom of the shaping plough is of an inverted trapezoidal structure with gradually contracted width from top to bottom.

The shaping plough adopting the technical measures has good shunting effect in the propelling process, relatively small resistance, stable and difficult-to-slip soil on two sides of the ditch, good stability and standard and good shaping of the ditch, and the outline of the end surface of the shaped ditch is basically in an inverted trapezoidal shape under the action of compacting the soil on the two sides.

As one preferred scheme, the ditching cutters are arranged in the middle of the length of a rotary tillage main shaft of the rotary tillage mechanism. The technical measure is beneficial to the stress balance of the rotary tillage mechanism in the rotary tillage propulsion process.

As one of the preferable schemes, a first fixing plate for positioning each fertilizer discharging pipe of the fertilizer applying mechanism is transversely arranged at the front side of the lower part of the rack;

corresponding to the arrangement positions of the rotary cutters on the rotary tillage mechanism, positioning holes for the fertilizer pipes to pass through are formed in the first fixing plate;

each fertilizer discharging pipe of the fertilizer applying mechanism corresponds to a corresponding rotary cutter on the rotary tillage mechanism below through a corresponding positioning hole on the first fixing plate;

and/or a second fixing plate for positioning each seed discharging pipe of the seeding mechanism is transversely arranged at the rear side of the lower part of the rack;

corresponding to the arrangement positions of the rotary cutters on the rotary tillage mechanism, positioning holes for the seed tubes to pass through are formed in the second fixing plate;

and each seed discharging pipe of the seeding mechanism corresponds to the corresponding rotary cutter on the rotary tillage mechanism below through the corresponding positioning hole on the second fixing plate.

The technical measures can ensure that the fertilizer discharging pipe of the fertilizer applying mechanism and the seed discharging pipe of the seeding mechanism are stably arranged relative to the rotary cutters of the rotary tillage mechanism, are not easy to generate deflection and displacement, are favorable for the standard operation of no-tillage rotary drilling and improve the seeding quality.

As one of the preferable schemes, a soil retaining curtain positioned at the rear side of the seeding pipe is transversely arranged at the rear side of the lower part of the frame; the downward extending height of the bottom end of the soil retaining curtain is greater than the downward extending height of the tail end of the seed sowing pipe. The technical measures can effectively protect the seeds discharged by the seed discharging pipe, avoid (at least reduce) interference of flying soil after rotary tillage on a falling track of the discharged seeds, ensure that the discharged seeds fall into the soil according to the advancing track of the seed discharging pipe, and improve the seeding quality.

As one of the preferable schemes, the all-in-one machine further comprises a harrowing mechanism with a chain structure, wherein the harrowing mechanism mainly comprises a connecting main chain, a supporting rod, a connecting auxiliary chain and a harrowing transverse chain;

the upper ends of the connecting main chains are connected to the transverse width direction of the rack according to left and right spacing, and the lower ends of the connecting main chains naturally hang and extend;

the support rods correspond to the seeding width and are transversely connected to the connecting main chains;

the upper ends of the connecting auxiliary chains are connected to the supporting rods according to the left-right spacing, and the lower ends of the connecting auxiliary chains naturally hang down and extend;

the raking transverse chains are in a plurality of groups of chain structures and are connected to the middle lower parts of the connecting main chains and the connecting auxiliary chains according to the upper and lower spacing.

The technical measures enable the wheat no-tillage drill seeder to be added with a land raking function, namely the wheat no-tillage drill seeder integrates the functions of no-tillage belt rotation, seeding, fertilizing, ditching and land raking, and during seeding operation, the lower hem of the land raking mechanism performs ending operation on the seeded field soil, namely the land raking and grinding are performed on the soil surface correspondingly. On one hand, the soil block grinding and refining effects can be achieved on field soil blocks. And secondly, the leveling and standardization of the field soil surface are facilitated, certain soil falling can be caused to the opened ditch certainly, and the integral forming of the opened ditch is not influenced. And thirdly, relatively uniform and small amount of soil covering can be carried out on the sowed wheat, so that the soil environment where the wheat is located can be preserved. And fourthly, the method is favorable for flattening crop stubble in the field, so that the flattened stubble can relatively uniformly cover the sowed wheat, and the soil environment where the wheat is located can be favorably preserved.

The soil raking mechanism is simple in structure and good in practicability, and can form a good grinding effect on soil blocks in the field when the soil surface in the field is dragged and displaced by the chain type lower pendulum consisting of the connecting main chain, the connecting auxiliary chain and the soil raking transverse chain in the sowing operation process, so that the soil raking mechanism is good in raking effect on soil surfaces and stubbles, can form a certain compacting effect on the soil surface layer in the field, and meanwhile avoids excessive compaction on the soil surfaces in the field.

As one of the preferable schemes, the all-in-one machine further comprises a land wheel mechanism which is rotatably and transversely connected to the lower part of the frame and is positioned at the rear side of the ditching mechanism;

and the rotating shaft of the land wheel mechanism is respectively connected with the rotating shaft of the fertilizing mechanism and the rotating shaft of the sowing mechanism in a chain transmission mode.

The land wheel mechanism adopting the technical measures can control fertilization and seeding precisely along with the rotary tillage propulsion process.

The utility model has the beneficial technical effects that: the technical measures are based on a wheat no-tillage drill seeder, and the ditching mechanism is formed by arranging a ditching cutter on the rotary tillage mechanism and arranging a corresponding shaping plough at the rear side. In the rotary tillage propulsion process, the ditching cutter on the rotary tillage mechanism can effectively loosen the soil, and the shaping plough can divide and pull the loosened soil and compact and shape the loosened soil, so that the wheat drill seeder integrating the functions of no-tillage belt rotation, seeding, fertilization and ditching is formed. In above-mentioned technical measure, the design plough can shunt and the shaping of compaction to the soil that the ditching cutter unscrewed, is difficult for the landing by the compacted both sides soil, and stability is good, and back is raised and is blown the flying soil on the one hand and is blockked by the design plough, on the other hand is compacted by the design plough and is difficult for dropping, covering in the ditch of opening, and the ditch that can see to open is standard, design good, can effectively exert the effect that the escape canal should have.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

FIG. 2 isbase:Sub>A view A-A of FIG. 1 (with the mounting plate and retaining curtain removed and showing only the position of the fertilizer tube and seed tube relative to the rotary tillage mechanism).

The reference numbers in the figures mean: 1, a frame; 11-a traction platform; 12-a trailing joint; 13, fixing a plate I; 14, fixing a second plate; 15-a retaining curtain; 2-a rotary tillage mechanism; 21-a rotary tillage main shaft; 22-with rotating cutter; 3, a ditching mechanism; 31-ditching cutter head; 32-a ditching cutter; 33-a shaping plough; 34-shaping wing plates; 4-a land wheel mechanism; 5-a harrowing mechanism; 6, a fertilizing mechanism; 61-a fertilizer box; 62, a fertilizer distributor; 63-a fertilizer discharging pipe; 7, a sowing mechanism; 71-seed box; 72, a seed metering device; 73-seed sowing pipe.

Detailed Description

The utility model relates to a wheat seeder, in particular to a wheat seeder integrating no-tillage belt rotation, seeding, fertilization and ditching functions, and the technical content of the main body of the utility model is explained in detail by a plurality of embodiments. In the embodiment 1, the technical solution content of the present invention is clearly and specifically explained with reference to the drawings of the specification, i.e., fig. 1 and fig. 2; in other embodiments, although the drawings are not separately drawn, the main structure of the embodiments can still refer to the drawings of embodiment 1.

It is expressly stated here that the drawings of the present invention are schematic, and unnecessary details have been simplified for the purpose of clarity in order to avoid obscuring the technical solutions that contribute to the prior art.

Example 1

Referring to fig. 1 and fig. 2, the utility model comprises a frame 1, a rotary tillage mechanism 2, a ditching mechanism 3, a land wheel mechanism 4, a harrowing mechanism 5, a fertilizing mechanism 6, a seeding mechanism 7 and a transmission mechanism.

The frame 1 mainly comprises two side blocks and a traction platform 11 connected between the two side blocks.

Specifically, the side blocks on the two sides are arranged in the left-right transverse direction at intervals, and the arrangement direction of each side is along the front-back longitudinal direction. The spacing distance of the side stops at the two sides corresponds to the drilling width required by the design.

The traction platform 11 is transversely connected between the side blocks at the two sides and forms a horizontal I-shaped structure with the side blocks at the two sides. On the towing platform 11 of the frame 1, a towing joint 12 extending forward is fixedly connected. The frame 1 is connected to the rear side of an agricultural vehicle, such as a tractor, via a hitch coupler 12, which generates the driving force for the agricultural vehicle to travel.

The rotary tillage mechanism 2 mainly comprises a rotary tillage main shaft 21 and a plurality of groups of band rotary cutters 22.

Specifically, two ends of the rotary tillage spindle 21 are respectively mounted on two side stops at the bottom of the frame 1 through bearing assemblies, the rotary tillage spindle 21 is located at the front side of the bottom of the frame 1, and the rotary tillage spindle 21 can rotate at the bottom of the frame 1 under the driving of external force.

The multiple sets of rotary blades 22 are arranged on the rotary tillage main shaft 21 in a substantially equidistant manner along the length direction of the rotary tillage main shaft 21; the band turning tool 22 is a rotary blade for no-tillage band turning work, and is not otherwise referred to. Each group of the rotary cutters 22 mainly comprises 3 to 4 blades which are uniformly distributed in the circumferential direction; typically 4 blades, with adjacent blades having cutting tips that are generally oppositely contoured. The radial extension lengths of the groups of rotary cutters 22 on the rotary tillage main shaft 21 are basically the same.

The ditching mechanism 3 consists of two parts, namely a ditching cutter 32 arranged on the rotary tillage mechanism 2 and a shaping plough 33 arranged on the frame 1.

Specifically, the two ditching cutters 32 are arranged in two groups, and the two ditching cutters 31 are arranged at the middle of the length of the rotary tillage main shaft 21 of the rotary tillage mechanism 2 at intervals, that is, between two adjacent groups of belt-rotating cutters 22 at the middle of the length of the rotary tillage main shaft 21.

The two sets of ditching cutters 32 are respectively arranged on the rotary tillage main shaft 21 of the rotary tillage mechanism 2 through ditching cutter heads 31. That is, two circular ditching cutter heads 31 are arranged between two adjacent groups of rotary cutters 22 at the middle of the length of the rotary tillage main shaft 21, and the diameter of each ditching cutter head 31 basically corresponds to the radial rotating diameter of the rotary cutter 22 and is at least half of the radial rotating diameter of the rotary cutter 22. Each group of ditching cutter 32 corresponds to one ditching cutter head 31, and each group of ditching cutter 32 mainly comprises 3-4 blades which are uniformly distributed in the circumferential direction, and generally comprises 4 blades.

The two sets of ditching cutters 32 are fixedly connected to the corresponding ditching cutter heads 31, and the two sets of ditching cutters 32 are matched with the cutter points facing in an opposite relationship on the corresponding ditching cutter heads 31, namely, the cutter points of the blades of the left ditching cutter 32 face the right side, and the cutter points of the blades of the right ditching cutter 32 face the left side. Two sets of ditching cutters 32 connected to the rotary tillage spindle 21 of the rotary tillage mechanism 2 through the ditching cutter head 31 have a radial rotation diameter larger than that of the rotary tillage spindle 21 with the rotary cutters 22, which is about 1.5 times of that of the rotary tillage spindle 22, that is, the effective rotary tillage depth of the ditching cutters 32 is larger than that of the rotary tillage spindle 22 with the rotary cutters 22.

When carrying out the rotary tillage to soil, in order to realize fully loosening to the soil between two ditching blade discs 31, and avoid the position interference between two sets of ditching cutters 32 again, each blade of two sets of ditching cutters 32 is the dislocation fit in the circumferential direction, and a left blade is in between two adjacent blades on the right side in the circumferential direction promptly, so on and so on. Thus, a margin is left for the intersection of the positions of the tips of the two sets of furrowing blades 32, so that the soil between the two furrowing blades 31 can be sufficiently loosened.

The shaping plough 33 is arranged at the bottom of the frame 1 at the rear side of the rotary tillage mechanism 2 corresponding to the arrangement positions of the two sets of ditching cutters 32 on the rotary tillage mechanism 2, and is arranged at a distance from the two sets of ditching cutters 32 on the rotary tillage mechanism 2, so that the rotary action of the rotary tillage mechanism 2 is not influenced. The shaping plough 33 and the two groups of ditching cutters 32 arranged on the rotary tillage mechanism 2 are in a corresponding and matching relationship in the longitudinal direction.

The shaping plough 33 is provided with shaping wing plates 34 extending backwards at two lateral sides. The width of the outer side between the two side shaping wing plates 34 is slightly smaller than the effective rotary tillage width between the two ditching cutters 32, wherein the effective rotary tillage width refers to the loosening width of soil, and is usually the distance between the two ditching cutter heads 31. That is, the width of the outer side between the shaping wings 34 on both sides of the shaping plow 33 corresponds to the width of the furrow to be opened in the field. Thus, the horizontal cross-sectional profile of the shaping plow 33 is U-shaped (opening rearward).

The downward extension height of the bottom end of the shaping plow 33 is slightly smaller than the radial rotation diameter of the ditching cutter 32 (it can be seen that the downward extension height of the bottom end of the shaping plow 33 is larger than the radial rotation diameter of the rotary cutter 22), that is, the downward extension height of the bottom end of the shaping plow 33 should be smaller than the effective rotary tillage depth of the ditching cutter 32, so that the shaping plow 33 in propulsion can divide and compact the loosened soil, and avoid interference with the soil which is not loosened. Of course, the height between the top and bottom ends of the shaping plow 33 should be greater than the depth of the trench to be excavated, so as to avoid, at least reduce, the soil sliding on both sides during the process of advancing the trench.

The vertical end face profile of the shaping plow 33 is an inverted trapezoidal structure with gradually shrinking width from top to bottom, i.e. the width of the top is larger than that of the bottom, and the end face profile of the opened groove is also basically an inverted trapezoidal structure, so that the stability is good. In addition, in order to effectively shunt the loosened soil, the following two structures are preferably formed to reduce the propelling resistance:

the front side of the shaping plow 33 is a split-flow fish-mouth structure gradually contracted from back to front in width, i.e. the front part is a sharp-mouth-shaped structure, the width of which is smaller than that of the rear part, and the sharp mouth is located in the middle of the transverse width of the shaping plow 33 and extends forwards for shaping;

the bottom of the shaping plow 33 is an open structure (i.e. the bottom of the shaping plow 33 is formed by the bottom edges of the shaping wing plates 34 on both sides), and the bottom of the shaping plow 33 is an inclined bottom structure with the front side higher than the rear side.

Through the diversion structure, the loosened soil partially flows through the outer sides and the bottoms of the two side shaping wing plates 34, is compacted in the field by being pressed by the shaping plough 33 in the diversion process, and particularly the soil on the two sides is compacted and is not easy to loosen and slide.

The land wheel mechanism 4 mainly comprises a rotating shaft and tooth-shaped cams arranged at two ends of the rotating shaft.

Specifically, two ends of a rotating shaft of the land wheel mechanism 4 are respectively mounted on two side baffles at the bottom of the frame 1 through bearing assemblies, are positioned at the rear side of the ditching mechanism 3, and can rotate at the bottom of the frame 1 under the driving of external force.

The inner sides of the bearing connecting parts at the two ends of the rotating shaft of the land wheel mechanism 4 are respectively provided with an end disc in a radial outward convex molding structure, and each end disc is of a circular structure. The outer diameters of the end discs at the two ends are basically consistent.

The tooth-shaped cams at the two ends are arranged on the periphery of the corresponding end disc in a circumferentially uniform arrangement structure, and the periphery of the end disc is in a gear-shaped structure.

The harrowing mechanism 5 is a chain structure and mainly comprises a connecting main chain, a supporting rod, a connecting auxiliary chain and a harrowing transverse chain.

Specifically, the connecting main chains are two groups of chain structures. The two groups of main connecting chains correspond to the rear ends of the side blocks on the two sides of the rack, and the upper ends of the two groups of main connecting chains are connected to the rear end of the rack in the transverse width direction of the rack according to the left-right spacing.

The lower ends of the two groups of connecting main chains naturally hang and extend, and one section (about 1/3-1/2 of the length of the connecting main chain) of the lower end of the connecting main chain is dragged on the soil surface when the seeds are sowed in the field.

The support rod is a rigid structure. The support rods are transversely connected between the two groups of connecting main chains corresponding to the spacing width between the two groups of connecting main chains (namely the drilling width of the drilling machine). The supporting rod is arranged at the connecting height position on the connecting main chain and is positioned in the middle upper area of the connecting main chain.

The connecting auxiliary chains are a plurality of groups of chain structures. The upper ends of the connecting auxiliary chains are arranged at a left-right position interval and connected to the supporting rods in a basically equal interval mode, and the lower ends of the connecting auxiliary chains naturally hang and extend. When sowing in the field, the lower end of the connecting auxiliary chain is dragged on the soil surface, and the bottom end of the connecting auxiliary chain is preferably basically flush with the bottom end of the connecting main chain.

The raking transverse chains are in a plurality of groups of chain structures. The length of each group of the harrow transverse chains corresponds to the arrangement distance between the two groups of the connecting main chains. The raking transverse chains are arranged at an upper and lower interval, are connected to the middle-lower area between the two groups of connecting main chains in a basically equal interval mode, and are in cross connection with the middle-lower area of each group of connecting auxiliary chains.

The harrowing mechanism formed according to the structure forms a flexible lower hem by the connection of each transverse harrowing chain, the main connecting chain and the auxiliary connecting chain. When sowing in the field, the flexible lower hem of the harrowing mechanism is laid on the soil surface in the natural sagging and extending process, and harrowing action is formed on the soil surface in the displacement process.

The fertilizing mechanism 6 mainly comprises a fertilizer box 61, a fertilizer apparatus 62, a rotating shaft, a fertilizer pipe 63 and the like.

Specifically, the fertilizer apparatus 62 and the fertilizer pipe 63 are a plurality of groups, and the number of the groups corresponds to the number of the groups of the rotary blades 22 on the rotary tillage mechanism 2.

The fertilizer box 61 is transversely fixed on the front side of the top of the side blocks at two sides of the frame 1. The fertilizer box 61 has a box cover that can be opened and closed. The bottom of the fertilizer box 61 has a plurality of fertilizer outlets arranged at substantially equal intervals along the length direction, and the number and the position of the fertilizer outlets substantially correspond to the number and the position of each group of rotary cutters 22 on the lower rotary tillage mechanism 2.

The rotating shaft of the fertilizing mechanism 6 is transversely arranged at the bottom of the fertilizer box 61, two ends of the rotating shaft are arranged on the rack 1 through bearing assemblies, and the arrangement position of the rotating shaft of the fertilizing mechanism 6 corresponds to a fertilizer outlet at the bottom of the fertilizer box 61. Driven by external force, the rotating shaft of the fertilizing mechanism 6 is rotatable at the bottom of the frame 1.

The rotating shaft of the fertilizing mechanism 6 connects the fertilizer applicators 62 in series axially, so that the fertilizer applicators 62 are in one-to-one correspondence with the fertilizer outlets at the bottom of the fertilizer box 61. The fertilizer in the fertilizer box 61 is discharged outside by the rotation of the fertilizer distributor 62.

The upper ends of the fertilizer pipes 63 are butted with the corresponding fertilizer apparatus 62. The lower end of each fertilizer pipe 63 extends downwards through the traction platform 11 on the frame 1. The lower ends of the fertilizer tubes 63 extend downward to the front side of the rotary tillage mechanism 2, and the heights of the lower ends of the fertilizer tubes 63 generally correspond to the rotary tillage spindles 21 of the rotary tillage mechanism 2, respectively, corresponding to the positions of the groups of rotary blades 22 of the rotary tillage mechanism 2, but of course should not affect the rotary motion of the rotary blades 22 of the rotary tillage mechanism 2.

In order to ensure the stability of the downward extension of each fertilizer pipe 63, a fixing plate 13 which is formed by extending downwards and used for positioning each fertilizer pipe 63 is transversely arranged at the front side of the lower part of the frame 1. The downward extension height of the first fixing plate 13 should not affect the rotation of the rotary blade 22 of the rotary tillage mechanism 2 and the ditching blade 32 of the ditching mechanism 3. Corresponding to the arrangement position of each rotary cutter 22 on the rotary tillage mechanism 2, a positioning hole for each fertilizer pipe 63 to pass through is arranged on the first fixing plate 13. Each fertilizer discharging pipe 63 is correspondingly matched with the corresponding rotary cutter 22 on the lower rotary tillage mechanism 2 through the corresponding positioning hole on the first fixing plate 13.

The seeding mechanism 7 mainly comprises a seed box 71, a seeding unit 72, a rotating shaft, a seeding pipe 73 and the like.

Specifically, the seed metering device 72 and the seed metering tube 73 are provided in a plurality of sets, and the number of the sets corresponds to the number of the sets of the rotary cutters 22 on the rotary tillage mechanism 2.

The seed box 71 is transversely fixed at the middle part of the top of the side blocks at two sides of the rack 1 and is positioned at the rear side of the fertilizer box 61. The seed box 71 has a box cover which can be opened and closed; it is desirable to integrate the seed box 71 with the fertilizer box 61, separated by a partition, sharing a box cover. The bottom of the seed box 71 is provided with a plurality of seed outlets at substantially equal intervals along the length direction, and the number and the position of the seed outlets are substantially corresponding to the position and the number of each group of rotary blades 22 on the lower rotary tillage mechanism 2.

The rotating shaft of the sowing mechanism 7 is transversely arranged at the bottom of the seed discharging box 71, two ends of the rotating shaft are arranged on the frame 1 through bearing assemblies, and the arrangement position of the rotating shaft of the sowing mechanism 7 corresponds to the seed discharging port at the bottom of the seed discharging box 71. Driven by external force, the rotating shaft of the seeding mechanism 7 can rotate at the bottom of the frame 1.

The seeding mechanism 7 has a rotating shaft to connect the seeding units 72 in series axially, so that the seeding units 72 are in one-to-one correspondence with the seeding ports at the bottom of the seed box 71. The seeds in the seed box 71 are discharged outward by the rotation of the seed metering device 72.

The upper end of each seed tube 73 is butted against the corresponding seed metering device 72. The lower end of each seed tube 73 extends downwards through the traction platform 11 on the frame 1. The lower end of each seed tube 73 extends downward to the middle of the rotary tillage mechanism 2, and corresponds to the rear side of the position of each group of rotary blades 22 of the rotary tillage mechanism 2, and the height of the bottom end of each seed tube 73 generally corresponds to the rotary tillage main shaft 21 of the rotary tillage mechanism 2, and certainly should not affect the rotary motion of the rotary blades 22 of the rotary tillage mechanism 2.

In order to ensure the stability of downward extension of each seed tube 73, a second fixing plate 14 which is formed by downward extension and is used for positioning each seed tube 73 is transversely arranged at the middle part of the lower part of the machine frame 1. The downward extension height of the second fixing plate 14 should not affect the rotation of the rotary blade 22 of the rotary tilling mechanism 2 and the ditching blade 32 of the ditching mechanism 3. Corresponding to the arrangement position of each rotary cutter 22 on the rotary tillage mechanism 2, the second fixing plate 14 is provided with a positioning hole for each seed tube 73 to pass through. Each seed-metering pipe 73 is correspondingly matched with the corresponding rotary cutter 22 on the lower rotary tillage mechanism 2 through the corresponding positioning hole on the second fixing plate 14.

In order to prevent soil that has been turned up by the rotary tillage mechanism 2 from having a negative influence on the seed discharge of the seed sowing mechanism 7, a soil blocking curtain 15 is provided on the frame 1 between the furrowing mechanism 3 and the land wheel mechanism 4, and the soil blocking curtain 15 is located on the rear side of the tail end of the seed discharge pipe 73. The retaining curtain 15 is formed of a flexible structure, such as rubber blocks, leather blocks, etc.

The upper end of the retaining curtain 15 is transversely and fixedly connected between the side blocks at the two sides of the frame 1, and the lower end naturally droops. The height of the downward extension of the bottom end of the retaining curtain 15 is greater than the height of the downward extension of the tail end of the seed sowing pipe 73, namely the height of the bottom end of the retaining curtain 15 is lower than the height of the tail end of the seed sowing pipe 73.

The transmission mechanism is arranged at one side of the frame 1 and mainly comprises two transmission chains.

The rotating shaft of the land wheel mechanism 4, the rotating shaft of the fertilizing mechanism 6 and the rotating shaft of the seeding mechanism 7 are respectively connected with a transmission gear corresponding to one end where the transmission mechanism is located.

Wherein, the end part of the rotating shaft of the land wheel mechanism 4 is connected with a transmission gear. The end part of the rotating shaft of the sowing mechanism 7 is connected with two transmission gears. The end part of the rotating shaft of the fertilizing mechanism 6 is connected with a transmission gear. One transmission gear at the end part of the rotating shaft of the seeding mechanism 7 corresponds to the transmission gear at the end part of the rotating shaft of the land wheel mechanism 4, and the other transmission gear at the end part of the rotating shaft of the seeding mechanism 7 corresponds to the transmission gear at the end part of the rotating shaft of the fertilizing mechanism 6.

The first transmission chain is respectively meshed with a transmission gear at the end part of a rotating shaft of the land wheel mechanism 4 and a transmission gear corresponding to the end part of a rotating shaft of the sowing mechanism 7.

The second transmission chain is respectively meshed with a transmission gear at the end part of a rotating shaft of the fertilizing mechanism 6 and a transmission gear corresponding to the end part of a rotating shaft of the sowing mechanism 7.

Therefore, in the sowing process, the tooth-shaped cam of the land wheel mechanism 4 drives the self rotating shaft to rotate on the soil surface due to sinking resistance, the self rotating shaft drives the rotating shaft of the sowing mechanism 7 to rotate through the first transmission chain, and in synchronization with the rotation, the rotating shaft of the sowing mechanism 7 drives the rotating shaft of the fertilizing mechanism 6 to rotate through the second transmission chain.

That is, the rotating shaft of the land wheel mechanism 4 is connected with the rotating shaft of the sowing mechanism 7 and the rotating shaft of the fertilizing mechanism 6 respectively in a chain transmission manner.

Example 2

The utility model discloses a frame, rotary tillage mechanism, ditching mechanism, land wheel mechanism, harrow ground mechanism, fertilizing mechanism, sowing mechanism and drive mechanism.

Wherein, the frame mainly comprises both sides limit fender and the platform that pulls of connecting between both sides limit fender.

Specifically, the side blocks on the two sides are arranged in the left-right transverse direction at intervals, and the arrangement direction of each side is along the front-back longitudinal direction. The spacing distance of the side stops at the two sides corresponds to the drilling width required by the design.

The traction platform is transversely connected between the side blocks at the two sides and forms a horizontal I-shaped structure with the side blocks at the two sides. And a towing joint extending forwards is fixedly connected to a towing platform of the frame. The frame is connected with the rear side of an agricultural motor vehicle, such as a tractor, through a towing joint, and the agricultural motor vehicle generates driving force for walking.

The rotary tillage mechanism mainly comprises a rotary tillage main shaft and a plurality of groups of rotary cutters.

Specifically, two ends of the rotary tillage main shaft are respectively arranged on two side baffles at the bottom of the frame through bearing assemblies and are positioned at the front side of the bottom of the frame, and the rotary tillage main shaft can rotate at the bottom of the frame under the driving of external force.

The multiple groups of rotary cutters are arranged on the rotary tillage main shaft in a basically equidistant mode along the length direction of the rotary tillage main shaft; the rotary cutter is a rotary tillage cutter for no-tillage rotary operation, and no other reference is made. Each group of the band rotating cutters mainly comprises 3 to 4 blades which are uniformly distributed in the circumferential direction; typically 4 blades, with the cutting tips of adjacent blades being formed generally oppositely. The radial extension lengths of all groups of rotary cutters on the rotary tillage main shaft are basically consistent.

The ditching mechanism consists of two parts, namely a ditching cutter arranged on the rotary tillage mechanism and a shaping plough arranged on the rack.

Specifically, the ditching cutter is a set of ditching cutter, and the ditching cutter of this group arranges in the middle of rotary tillage main shaft's length of rotary tillage mechanism, is located between two sets of adjacent area rotary cutters of rotary tillage main shaft middle of length department promptly.

All blades of the ditching cutter are arranged on a rotary tillage main shaft of the rotary tillage mechanism through a ditching cutter head. The diameter of the ditching cutter head basically corresponds to the radial rotating diameter of the rotary cutters and is at least half of the radial rotating diameter of the rotary cutters. The ditching cutter mainly comprises 4 blades which are uniformly distributed in the circumferential direction, and can be an even number which is larger than 4, such as 6 or 8 blades.

Each blade of the ditching cutter is arranged on two sides of the ditching cutter head in a staggered mode according to the circumferential position, namely one blade is arranged on the right side of the ditching cutter head, two blades adjacent to the blade are arranged on the left side of the ditching cutter head, the cutter points of the blades on two sides of the ditching cutter head face to and are opposite to each other in a crossed mode, for example, the cutter point of the blade on the right side of the ditching cutter head extends towards the left side, and the cutter point of the blade on the left side of the ditching cutter head extends towards the right side. The ditching cutter is connected to a rotary tillage main shaft of the rotary tillage mechanism through the ditching cutter head, the radial rotating diameter of the ditching cutter is larger than that of a rotary tillage main shaft with a rotary cutter, and is about 1.5 times of that of the rotary tillage main shaft with the rotary cutter, namely, the effective rotary tillage depth of the ditching cutter is larger than that of the rotary tillage main shaft with the rotary cutter.

When the rotary tillage is carried out on soil, the cutter tips on the two sides of the ditching cutter head face the blades which are back to back in a crossed mode, the width of a rotary tillage belt is formed, and the width of the rotary tillage belt is slightly larger than the width of a ditch to be ditched.

The shaping plough is arranged at the bottom of the frame at the rear side of the rotary tillage mechanism corresponding to the arrangement position of the ditching cutter on the rotary tillage mechanism, and is arranged at a distance from the ditching cutter on the rotary tillage mechanism, so that the rotary action of the rotary tillage mechanism is not influenced. The shaping plough and the ditching cutter arranged on the rotary cultivator are in corresponding fit relation longitudinally.

The two transverse sides of the shaping plough are provided with shaping wing plates which extend backwards for shaping. The width of the outer side between the shaping wing plates at the two sides is slightly smaller than the effective rotary tillage width of the ditching cutter, namely the width of a rotary tillage belt, and the effective rotary tillage width refers to the loosening width of soil. That is, the width of the outer side between the shaped wing plates on both sides of the shaped plow corresponds to the width of the trench to be cut in the field. Thus, the horizontal section of the shaping plow is U-shaped (with the opening facing backwards).

The downward extension height of the bottom end of the shaping plough is slightly smaller than the radial rotation diameter of the ditching cutter (as can be seen, the downward extension height of the bottom end of the shaping plough is larger than the radial rotation diameter of the ditching cutter), namely, the downward extension height of the bottom end of the shaping plough is smaller than the effective rotary tillage depth of the ditching cutter, so that the pushed shaping plough can divide and compact the soil loosened by screwing and the interference with the soil not loosened by screwing is avoided. Of course, the height between the top and bottom ends of the shaping plough should be greater than the depth of the ditch to be dug, so that the soil on two sides can be prevented or at least reduced from sliding off in the process of propelling ditching.

The vertical end face profile of the shaping plough is of an inverted trapezoidal structure with gradually contracted width from top to bottom, namely the width of the top is larger than that of the bottom, the end face profile of the opened ditch is also of an inverted trapezoidal structure basically, and the stability is good. In addition, in order to effectively divide the loosened soil, it is preferable to form two structures as follows for reducing the propulsive resistance:

the front side of the shaping plow is a split-flow fish mouth structure gradually contracted from back to front in width, i.e. the front part is a sharp-mouth-shaped structure, the width of the structure is smaller than that of the rear part, and the sharp mouth is positioned in the middle of the transverse width of the shaping plow and extends forwards for shaping;

the bottom of the shaping plow is of an open structure (i.e. the bottom of the shaping plow is formed by the bottom edges of the two side shaping wing plates), and the bottom of the shaping plow is of an inclined bottom structure with the front side higher than the rear side.

Through the shunting structure, the unscrewed soil partially shunts through the outer sides and the bottoms of the two side shaping wing plates, is compacted in the field by being extruded by the shaping plough in the shunting process, and particularly, the soil on the two sides is compacted and is not easy to loosen and slide off.

The land wheel mechanism mainly comprises a rotating shaft and tooth-shaped cams arranged at two ends of the rotating shaft.

Specifically, two ends of a rotating shaft of the land wheel mechanism are respectively arranged on two side baffles at the bottom of the rack through bearing assemblies, are positioned at the rear side of the ditching mechanism, and can rotate at the bottom of the rack under the driving of external force.

The inner sides of the bearing connecting parts at the two ends of the rotating shaft of the land wheel mechanism are respectively provided with an end disc in a radial outward convex molding structure, and each end disc is of a circular structure. The outer diameters of the end discs at the two ends are basically consistent.

The tooth-shaped cams at the two ends are arranged on the periphery of the corresponding end disc in a circumferential uniform arrangement structure, and the periphery of the end disc is in a gear-shaped structure.

The harrowing mechanism is a chain structure and mainly comprises a connecting main chain, a supporting rod, a connecting auxiliary chain and a harrowing transverse chain.

Specifically, the connecting main chains are two groups of chain structures. The two groups of main connecting chains correspond to the rear ends of the side blocks on the two sides of the rack, and the upper ends of the two groups of main connecting chains are connected to the rear end of the rack in the transverse width direction of the rack according to the left-right spacing.

The lower ends of the two groups of connecting main chains naturally hang and extend, and one section (about 1/3-1/2 of the length of the connecting main chain) of the lower end of the connecting main chain is dragged on the soil surface when the seeds are sowed in the field.

The support rod is a rigid structure. The support rods are transversely connected between the two groups of connecting main chains corresponding to the spacing width between the two groups of connecting main chains (namely the drilling width of the drilling machine). The supporting rod is arranged at the connecting height position on the connecting main chain and is positioned at the middle upper area of the connecting main chain.

The connecting auxiliary chains are a plurality of groups of chain structures. The upper ends of the connecting auxiliary chains are arranged at a left-right spacing and connected to the supporting rods in a basically equal-spacing mode, and the lower ends of the connecting auxiliary chains naturally hang and extend. When sowing in the field, the lower end of the connecting auxiliary chain is dragged on the soil surface, and the bottom end of the connecting auxiliary chain is preferably basically flush with the bottom end of the connecting main chain.

The raking transverse chains are in a plurality of groups of chain structures. The length of each group of the harrow transverse chains corresponds to the arrangement distance between the two groups of the connecting main chains. The raking transverse chains are arranged at an upper and lower interval, are connected to the middle-lower area between the two groups of connecting main chains in a basically equal interval mode, and are in cross connection with the middle-lower area of each group of connecting auxiliary chains.

The harrowing mechanism formed according to the structure forms a flexible lower hem by the connection of each transverse harrowing chain, the main connecting chain and the auxiliary connecting chain. When the field is sowed, the flexible lower hem of the harrowing mechanism is paved on the soil surface in the natural sagging and extending process, and harrowing action is formed on the soil surface in the displacement process.

The fertilizer mechanism mainly comprises a fertilizer box, a fertilizer apparatus, a rotating shaft, a fertilizer pipe and the like.

Specifically, the fertilizer distributor and the fertilizer pipe are matched with each other in a plurality of groups, and the number of the groups corresponds to the number of the groups of the rotary cutters on the rotary tillage mechanism.

The fertilizer box is transversely fixed at the front side of the top of the side blocks at the two sides of the rack. The fertilizer box is provided with a box cover which can be opened and closed. The bottom of the fertilizer box is provided with a plurality of fertilizer outlets at basically equal intervals along the length direction, and the number and the position of the fertilizer outlets are basically corresponding to the position and the number of each group of rotary cutters on the rotary tillage mechanism below.

The rotating shaft of the fertilizing mechanism is transversely arranged at the bottom of the fertilizer box, two ends of the rotating shaft are arranged on the rack through bearing assemblies, and the arrangement position of the rotating shaft of the fertilizing mechanism corresponds to a fertilizer outlet at the bottom of the fertilizer box. Under the drive of external force, the rotating shaft of the fertilizing mechanism can rotate at the bottom of the frame.

The rotating shaft of the fertilizing mechanism connects the fertilizer applicators in series axially, so that the fertilizer applicators are in one-to-one correspondence with the fertilizer outlets at the bottom of the fertilizer box. The fertilizer in the fertilizer box is discharged outside through the rotation of the fertilizer distributor.

The upper ends of the fertilizer pipes are butted on the corresponding fertilizer apparatus. The lower end of each fertilizer discharging pipe passes through the traction platform on the frame and extends downwards. The lower ends of the fertilizer pipes extend downwards to the front side of the rotary tillage mechanism and correspond to the front sides of the groups of rotary cutters of the rotary tillage mechanism respectively, and the height of the bottom ends of the fertilizer pipes generally corresponds to the rotary tillage main shaft of the rotary tillage mechanism, and certainly, the rotary action of the rotary cutters of the rotary tillage mechanism should not be influenced.

In order to ensure the stability of downward extension of each fertilizer pipe, a first fixing plate which is formed by downward extension and used for positioning each fertilizer pipe is transversely arranged at the front side of the lower part of the rack. The downward extending height of the first fixing plate does not influence the rotating motion of the rotary tillage cutter of the rotary tillage mechanism and the ditching cutter of the ditching mechanism. Corresponding to the arrangement positions of the rotary cutters on the rotary tillage mechanism, positioning holes for the fertilizer pipes to pass through are formed in the first fixing plate. Each fertilizer pipe is correspondingly matched with a corresponding rotary cutter on the rotary tillage mechanism below through a corresponding positioning hole on the first fixing plate.

The seeding mechanism mainly comprises a seed box, a seeding device, a rotating shaft, a seeding pipe and the like.

Specifically, the seeding unit and the seeding pipe are matched into a plurality of groups one by one, and the number of the groups corresponds to the number of the groups of the rotary cutters on the rotary tillage mechanism.

The seed box is transversely fixed at the middle part of the top of the side blocks at the two sides of the rack and is positioned at the rear side of the fertilizer box. The seed box is provided with a box cover which can be opened and closed; most desirably, the seed box is integrated with the fertilizer box, separated by a partition, and shares a box cover. The bottom of the seeding box is provided with a plurality of seeding ports at basically equal intervals along the length direction, and the number and the position of the seeding ports basically correspond to the position and the number of the rotary cutters of each group on the lower rotary tillage mechanism.

The rotating shafts of the seeding mechanisms are transversely arranged at the bottom of the seed discharging box, two ends of the rotating shafts of the seeding mechanisms are arranged on the frame through bearing assemblies, and the arrangement positions of the rotating shafts of the seeding mechanisms correspond to the seed discharging ports at the bottom of the seed discharging box. Under the drive of external force, the rotating shaft of the sowing mechanism can rotate at the bottom of the frame.

The rotating shaft of the seeding mechanism connects each group of seed metering devices in series axially, so that each group of seed metering devices are in one-to-one correspondence with each seed metering opening at the bottom of the seed box. The seeds in the seed box are discharged outwards through the rotation of the seed metering device.

The upper ends of the seed sowing pipes are butted on the corresponding seed sowing device. The lower end of each seed tube passes through the traction platform on the frame and extends downwards. The lower ends of the seed tubes extend downwards to the middle part of the rotary tillage mechanism and respectively correspond to the rear sides of the groups of rotary blades of the rotary tillage mechanism, and the height of the bottom ends of the seed tubes generally corresponds to the rotary tillage main shaft of the rotary tillage mechanism, and certainly, the rotary motion of the rotary blades of the rotary tillage mechanism should not be influenced.

In order to ensure the stability of downward extension of each seed sowing pipe, a second fixing plate which is formed by downward extension and used for positioning each seed sowing pipe is transversely arranged at the middle part of the lower part of the machine frame. The downward extending height of the second fixing plate does not influence the rotating action of the rotary tillage mechanism with the rotary cutter and the ditching cutter of the ditching mechanism. And positioning holes for the seed tubes to pass through are formed in the second fixing plate corresponding to the arrangement positions of the rotary cutters on the rotary tillage mechanism. And each seed sowing pipe is correspondingly matched with a corresponding rotary cutter on the rotary tillage mechanism below through a corresponding positioning hole on the second fixing plate.

In order to prevent the soil rotated by the rotary tillage mechanism from causing the back-carrying influence on the seed discharging of the seeding mechanism, a soil retaining curtain is arranged on the frame between the ditching mechanism and the land wheel mechanism, and the soil retaining curtain is positioned at the rear side of the tail end of the seed discharging pipe. The retaining curtain is formed of a flexible structure, such as rubber blocks, leather blocks, and the like.

The upper end of the retaining curtain is transversely and fixedly connected between the side blocks at the two sides of the frame, and the lower end naturally droops. The height of the downward extension of the bottom end of the retaining curtain is greater than the height of the downward extension of the tail end of the seed sowing pipe, namely the height of the bottom end of the retaining curtain is lower than the height of the tail end of the seed sowing pipe.

The transmission mechanism is arranged at one side of the frame and mainly comprises two transmission chains.

The rotating shaft of the land wheel mechanism, the rotating shaft of the fertilizing mechanism and the rotating shaft of the sowing mechanism are respectively connected with a transmission gear corresponding to one end where the transmission mechanism is located.

Wherein, the end of the rotating shaft of the land wheel mechanism is connected with a transmission gear. The end part of a rotating shaft of the sowing mechanism is connected with two transmission gears. The end part of a rotating shaft of the fertilizing mechanism is connected with a transmission gear. One transmission gear at the end part of the rotating shaft of the sowing mechanism corresponds to the transmission gear at the end part of the rotating shaft of the land wheel mechanism, and the other transmission gear at the end part of the rotating shaft of the sowing mechanism corresponds to the transmission gear at the end part of the rotating shaft of the fertilizing mechanism.

The first transmission chain is respectively meshed with a transmission gear at the end part of a rotating shaft of the land wheel mechanism and a transmission gear corresponding to the end part of a rotating shaft of the sowing mechanism.

The second transmission chain is respectively meshed with a transmission gear at the end part of the rotating shaft of the fertilizing mechanism and a transmission gear corresponding to the end part of the rotating shaft of the sowing mechanism.

Therefore, in the sowing process, the toothed cam of the land wheel mechanism drives the rotating shaft of the land wheel mechanism to rotate on the soil surface due to sinking resistance, the rotating shaft of the land wheel mechanism drives the rotating shaft of the sowing mechanism to rotate through the first transmission chain, and synchronously, the rotating shaft of the sowing mechanism drives the rotating shaft of the fertilizing mechanism to rotate through the second transmission chain.

That is, the rotating shaft of the land wheel mechanism is respectively connected with the rotating shaft of the seeding mechanism and the rotating shaft of the fertilizing mechanism in a chain transmission mode.

The above examples are only for illustrating the present invention and are not to be construed as limiting the same.

Although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that: the specific technical scheme can still be modified, or part of technical characteristics can be equivalently replaced, for example, a land wheel mechanism is omitted, a rotating shaft of the seeding mechanism and/or the fertilizing mechanism is directly connected with a rotary tillage main shaft of the rotary tillage mechanism through a chain, and the like; and such modifications or substitutions do not depart from the spirit and scope of the present invention in its essence.

Claims (10)

1. A wheat no-tillage seeding ditching all-in-one includes:

-a frame (1), said frame (1) being towed on a power plant;

-a rotary tillage mechanism (2), the rotary tillage mechanism (2) is rotatably connected to the lower part of the frame (1) in a transverse direction, and a plurality of groups of belt rotary cutters (22) are arranged on a rotary tillage main shaft (21) of the rotary tillage mechanism (2) at intervals along the length direction;

-a fertilizing mechanism (6), said fertilizing mechanism (6) being transversely connected to the upper part of said frame (1), said fertilizing mechanism (6) having a plurality of fertilizing tubes (63) corresponding to each rotating blade (22) on said rotary tillage mechanism (2), each fertilizing tube (63) extending downwards at the front side of the corresponding rotating blade (22);

-a sowing mechanism (7), said sowing mechanism (7) being connected transversely to the upper part of said frame (1), said sowing mechanism (7) having a plurality of seed tubes (73) corresponding to each rotary cutter (22) on said rotary tilling mechanism (2), each seed tube (73) extending downwardly at the rear side of the corresponding rotary cutter (22);

the all-in-one machine is characterized by further comprising a ditching mechanism (3), wherein the ditching mechanism (3) mainly comprises ditching cutters (32) distributed on the rotary tillage mechanisms (2) and shaping plows (33) distributed on the rack (1) and corresponding to the rear sides of the ditching cutters (32);

the shaping plough (33) is provided with shaping wing plates (34) extending backwards on two sides, and the width of the outer side between the shaping wing plates (34) on the two sides corresponds to the width of a ditch to be cut in the field.

2. The wheat no-tillage seeding and furrowing all-in-one machine as claimed in claim 1, wherein:

the ditching cutters (32) arranged on the rotary tillage mechanism (2) are two groups which are arranged at intervals along the length direction of a rotary tillage main shaft (21) of the rotary tillage mechanism (2);

the effective rotary tillage width between the two groups of ditching cutters (32) is at least equal to the outer width between the shaping wing plates (34) at two sides of the shaping plough (33).

3. The wheat no-tillage seeding and furrowing all-in-one machine as claimed in claim 2, wherein:

the ditching cutter (32) is arranged on a rotary tillage main shaft (21) of the rotary tillage mechanism (2) through a ditching cutter head (31);

the tips of two groups of ditching cutters (32) arranged on the rotary tillage mechanism (2) face to form an opposite matching relation; and the blades of the two groups of ditching cutters (32) are in staggered fit in the circumferential direction.

4. The wheat no-tillage seeding and furrowing all-in-one machine as claimed in claim 1, 2 or 3, wherein:

the effective rotary tillage depth of the ditching cutter (32) is at least equal to the downward extension height of the bottom end of the shaping plough (33);

and the bottom end of the shaping plough (33) extends downwards to a height which is greater than the effective rotary tillage depth of the rotary tillage mechanism (2) with the rotary cutter (22).

5. The wheat no-tillage seeding and furrowing all-in-one machine as claimed in claim 4, wherein:

the front side of the shaping plough (33) is a flow dividing fish mouth structure with the width gradually shrinking from back to front;

the bottom of the shaping plough (33) is of an inverted trapezoidal structure with gradually contracted width from top to bottom.

6. The wheat no-tillage seeding and furrowing all-in-one machine as claimed in claim 1, 2 or 3, wherein:

the ditching cutter (32) is arranged in the middle of the length of the rotary tillage main shaft (21) of the rotary tillage mechanism (2).

7. The wheat no-tillage seeding and furrowing all-in-one machine as claimed in claim 1, wherein:

a first fixing plate (13) for positioning each fertilizer discharging pipe (63) of the fertilizer applying mechanism (6) is transversely arranged at the front side of the lower part of the rack (1);

corresponding to the arrangement positions of the rotary cutters (22) on the rotary tillage mechanism (2), the first fixing plate (13) is provided with positioning holes for the fertilizer pipes (63) to pass through;

each fertilizer discharging pipe (63) of the fertilizer applying mechanism (6) corresponds to a corresponding rotary cutter (22) on the rotary tillage mechanism (2) below through a corresponding positioning hole on the first fixing plate (13);

and/or a second fixing plate (14) for positioning each seed discharging pipe (73) of the seeding mechanism (7) is transversely arranged at the rear side of the lower part of the rack (1);

corresponding to the arrangement positions of the rotary cutters (22) on the rotary tillage mechanism (2), the second fixing plate (14) is provided with positioning holes for the seed tubes (73) to pass through;

and each seed discharging pipe (73) of the seeding mechanism (7) corresponds to the corresponding rotary cutter (22) on the rotary tillage mechanism (2) below through the corresponding positioning hole on the second fixing plate (14).

8. The wheat no-tillage seeding and furrowing all-in-one machine as claimed in claim 1 or 7, wherein:

a soil retaining curtain (15) positioned at the rear side of the seeding pipe (73) is transversely arranged at the rear side of the lower part of the frame (1); the bottom end of the soil retaining curtain (15) extends downwards to a height which is larger than the downwards extending height of the tail end of the seed sowing pipe (73).

9. The wheat no-tillage seeding and furrowing all-in-one machine as claimed in claim 1, wherein:

the all-in-one machine also comprises a raking mechanism (5) with a chain structure, wherein the raking mechanism (5) mainly comprises a connecting main chain, a supporting rod, a connecting auxiliary chain and a raking transverse chain;

the upper ends of the connecting main chains are connected to the transverse width direction of the rack according to left and right spacing, and the lower ends of the connecting main chains naturally hang and extend;

the support rods correspond to the seeding width and are transversely connected to the connecting main chains;

the upper ends of the connecting auxiliary chains are connected to the supporting rods according to the left-right spacing, and the lower ends of the connecting auxiliary chains naturally droop and extend;

the raking transverse chains are in a multi-group chain structure and are connected to the middle lower parts of the connecting main chains and the connecting auxiliary chains according to the upper-lower spacing.

10. The wheat no-tillage seeding and furrowing all-in-one machine of claim 1 or 9, wherein:

the all-in-one machine further comprises a land wheel mechanism (4), wherein the land wheel mechanism (4) is rotatably and transversely connected to the lower part of the rack (1) and is positioned at the rear side of the ditching mechanism (3);

and the rotating shaft of the land wheel mechanism (4) is respectively connected with the rotating shaft of the fertilizing mechanism (6) and the rotating shaft of the sowing mechanism (7) in a chain transmission mode.

Images