Small-row-spacing seeding profiling monomer capable of adjusting corn triangular final singling mode and seeding machine

Abstract

The invention discloses an adjustable corn triangular final singling mode small row spacing seeding profiling monomer and a seeder, the seeding profiling monomer comprises a rack, seed sowing devices and soil covering wheels, the two seed sowing devices are arranged side by side through a front mounting rack and a rear mounting rack, the front mounting rack and the rear mounting rack are provided with at least two groups of connecting holes connected with the seed sowing devices, seeding legs are arranged below the seed sowing devices, and the seeding legs are connected with the soil covering wheels. The front mounting frame is hinged to the four-bar linkage, the soil covering wheel is arranged on the rear mounting frame through a connecting hole, and the seeding legs correspond to the soil covering wheel front and back; a chain wheel or a reverser is arranged between the two seed-metering devices, and the two sides of the chain wheel or the reverser are respectively sleeved on rotating shafts of the two seed-metering devices, so that the two seed-metering devices are coaxially and rotationally connected through the chain wheel or the reverser; the corn seed-metering device is modified on the basis of an existing seed-metering device, and a plurality of groups of connecting holes are formed in the front mounting frame and the rear mounting frame which are used for connecting the seed-metering device, so that a worker can conveniently adjust the seed-metering device according to small seeding line spacing, and the corn seed-metering device is suitable for seeding operation of different small line spacing in a corn triangular final singling mode.

Description

Technical Field

[0001] The invention relates to the technical field of agriculture, and in particular to a sowing profiling unit and a sowing machine capable of adjusting a small row spacing of a corn triangular seedling setting mode. Background Art

[0002] In the corn triangle seedling mode for small double-row corn sowing, the row spacing between the small double rows in the existing sowing equipment is fixed and cannot be adjusted in real time according to actual conditions. At the same time, since the two sowing legs are close to each other, congestion is easily caused, affecting the sowing effect; and basically one seeding device is equipped with one transmission. This configuration causes a seeder to be matched with the same number of transmissions as the seeding device. Not only is the adjustment process cumbersome, but it also increases costs. Summary of the invention

[0003] The technical problem to be solved by the present invention is that the existing seeding equipment cannot adjust the small row spacing in real time, the seeding legs are easily blocked, and the transmission uses a large amount of money and has high costs.

[0004] In order to solve the above technical problems, the present invention provides a technical solution: a sowing profiling unit capable of adjusting the small row spacing of a corn triangular seedling mode, comprising a frame, a seeding device and a covering wheel, wherein the two seeding devices are arranged side by side through a front mounting frame and a rear mounting frame, the front mounting frame and the rear mounting frame are provided with at least two groups of connecting holes connected to the seeding devices, and each group of connecting holes on the front mounting frame and the rear mounting frame correspond to each other front and back, a sowing leg is arranged below the seeding device, the seeding port of the seeding device is connected to the sowing leg through a partition cavity type annular seed guide belt, the front mounting frame is hinged with a four-link, the covering wheel is arranged on the rear mounting frame through a connecting hole, and the sowing leg and the covering wheel correspond to each other front and back; a sprocket or a commutator is arranged between the two seeding devices, sleeves are coaxially arranged on both sides of the sprocket or the commutator, and the two sleeves are respectively sleeved on the rotating shafts of the two seeding devices, so that the two seeding devices are coaxially rotatably connected through the sprocket or the commutator.

[0005] Furthermore, the seed meter is one of an air suction type seed meter, a nail type seed meter, and a spoon wheel type seed meter.

[0006] Furthermore, the annular seed guide belt in the partition cavity type annular seed guide belt is a chain, and the two annular seed guide belts are installed in a rotationally staggered manner, so that a staggered position is formed between the originally corresponding partition cavities on the two annular seed guide belts.

[0007] Furthermore, the soil covering wheel is hinged to the rear mounting frame through a contouring mechanism.

[0008] Furthermore, a drip irrigation tape placement rack is provided on the rear mounting frame, and a drip irrigation tape furrow opener and a drip irrigation tape guide wheel are provided on the rear mounting frame between the two soil covering wheels, and the drip irrigation tape furrow opener and the drip irrigation tape guide wheel correspond to each other front and back.

[0009] To solve the above technical problems, the present invention provides another technical solution: a seeder with adjustable corn triangular seedling mode and small row spacing, comprising a frame, a ground wheel, and a sowing unit, wherein the sowing unit is the above-mentioned sowing profiling unit with adjustable corn triangular seedling mode and small row spacing, and is characterized in that: at least two of the sowing units are arranged side by side on the frame, the ground wheel is connected to the frame through a connecting frame, the ground wheel is linked to a transmission on the connecting frame through a chain, and the transmission drives the sprocket or commutator to rotate synchronously through a transmission mechanism.

[0010] Furthermore, the connecting frame includes a first connecting frame and a second connecting frame which are hinged, and the first connecting frame and the second connecting frame are both hinged with support columns, the support columns are provided with screw holes, and the screw holes on the two support columns are screwed with adjusting screws.

[0011] Furthermore, the frame is provided with a clearance shaft linked to the gearbox, the clearance shaft is linked to the clearance knife group through a chain box, the clearance knife group is arranged in front of the sowing legs, and the rotation trajectory of the clearance knife group is between the two sowing legs.

[0012] Furthermore, the obstacle clearing blade set is obstacle clearing blades arranged on both sides of the chain box.

[0013] Furthermore, a fertilizer box and a fat leg are arranged on the frame, and the fertilizer box and the fat leg are connected through a hose.

[0014] The beneficial effects of the present invention are: The present application is modified on the basis of the existing seeding device, and multiple groups of connecting holes are set on the front mounting frame and the rear mounting frame connected to the seeding device, and each group of connecting holes on the front mounting frame and the rear mounting frame corresponds to each other front and back, so that personnel can adjust the distance between the two seeding devices and the two covering wheels according to the small sowing row spacing, and adapt to the sowing operations with different small row spacings in the corn triangular seedling mode, and the preferred adjustment distance is 20-30CM; the four-link is connected to the frame by U-bolts, so that the sowing unit can move as a whole on the frame, and adapt to the sowing operations with different large row spacings in the corn triangular seedling mode, and preferably The adjustable distance is 55-80CM; when the seeding device is a nail-type seeding device or a spoon-wheel-type seeding device, the rotating shafts between the seeding devices are coaxially connected through sprockets. Since the sleeves coaxially arranged on both sides of the sprocket are sleeved on the rotating shaft, the axial movement of the sleeves is realized and tightened by bolts, which is convenient for moving and adjusting the distance between the two seeding devices; the covering wheels are hinged to the rear mounting frame through a profiling mechanism, the seeding device is pressed on the ground by its own gravity, and the covering wheels are pressed on the ground by their own gravity and springs, which is convenient for the seeding device and the covering wheels to float up and down according to the terrain to ensure the sowing quality; the transmission is connected to the ground wheel as The power of the ground wheel is directly transmitted to the input shaft of the transmission through a chain, and then the output shaft of the transmission drives the seeding device through a sprocket. One seeding device can complete the speed adjustment, which is easy to operate and reduces costs. The integrated design also saves the internal space of the seeding machine and reduces the interference with other equipment during maintenance. The height of the ground wheel is adjusted by a screw-connected adjustment screw on the connecting frame to adapt to different sowing depths. An obstacle clearing knife group is arranged in front of the sowing legs. The rotation trajectory of the obstacle clearing knife group is between the two sowing legs. When it rotates driven by the gearbox, it can remove the debris blocked in the sowing legs. The seeding port of the seed meter is connected with the sowing leg through the partition cavity type annular seed guide belt. When the annular seed guide belt in the partition cavity type annular seed guide belt rotates, it can drive the seeds to move and guide the discharged seeds, so that the seeding point of the seed meter is closer to the ground and the plant spacing is uniform. At the same time, since the annular seed guide belts in the two partition cavity type annular seed guide belts arranged side by side are staggered, the two seeds discharged from the seeding ports of the two seed meters at the same time are also staggered in the partition cavity type annular seed guide belt, so that there is a time difference when the seeds fall to the ground, forming a triangular seedling sowing.

[0015] In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only six of the drawings of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 Schematic diagram of the structure of the sowing unit Figure 1 .

[0018] Figure 2 Schematic diagram of the structure of the sowing unit Figure 2 .

[0019] Figure 3 Schematic diagram of the structure of the sowing unit Figure 3 .

[0020] Figure 4 This is a schematic diagram of the structure of a seed drill.

[0021] Figure 5 This is a schematic diagram of the structure of the ground wheel.

[0022] Figure 6 It is a schematic diagram of the structure of the partition cavity type annular seed guide belt.

[0023] In the figure, B1-seeder, B2-soil covering wheel, B3-connecting hole, B4-front mounting frame, B5-rear mounting frame, B6-seeding leg, B7-rotating shaft, B8-drip irrigation belt placement frame, B9-four-link, B10-drip irrigation belt furrow opener, B11-commutator, B12-profile mechanism, B13-drip irrigation belt guide wheel, B14-partition cavity type annular seed guide belt; a-two seeds discharged simultaneously from the seed discharge ports of two seeders; B141-driving sprocket, B142-driven sprocket, B143-annular seed guide belt, B144-partition; A-frame, B-seeding unit, C-ground wheel, D-connecting frame, E-chain, F-transmission, G-transmission mechanism, H-support column, J-adjusting screw, K-obstruction blade, L-obstruction shaft, M-gearbox, N-chain box, O-fertilizer box, P-fat leg, Q-output shaft. DETAILED DESCRIPTION

[0024] Embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as being limited to the embodiments described herein, which are instead provided for a more thorough and complete understanding of the present invention. It should be understood that the drawings and embodiments of the present invention are only for exemplary purposes and are not intended to limit the scope of protection of the present invention.

[0025] In the present invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0026] The names of the messages or information exchanged between multiple devices in the embodiments of the present invention are only used for illustrative purposes, and are not used to limit the scope of these messages or information. Embodiment 1

[0027] like Figure 1-2 As shown, a sowing profiling unit capable of adjusting the small row spacing of a corn triangular seedling mode comprises a frame A, a seeding device B1 and a covering wheel B2, two seeding devices B are arranged side by side through a front mounting frame B4 and a rear mounting frame B5, at least two groups of connecting holes B3 connected to the seeding device B1 are arranged on the front mounting frame B4 and the rear mounting frame B5, and each group of connecting holes B3 on the front mounting frame B4 and the rear mounting frame B5 correspond to each other front and back, a sowing leg B6 is arranged below the seeding device B1, a seeding port of the seeding device B1 is connected to the sowing leg B6 through a partition cavity type annular seed guide belt B14, the front mounting frame B4 is hinged to a four-link B9, and the covering wheel B2 is arranged on the rear mounting frame B5 through the connecting hole B3, and the sowing leg B6 and the covering wheel B2 correspond to each other front and back; it is convenient for personnel to adjust the spacing between the two seeding devices B1 according to the small sowing row spacing. and the spacing between the two covering wheels B2, adapting to the sowing operations of different small row spacings in the corn triangular seedling mode, preferably adjusting the distance to 20-30CM; the four-link B9 is connected to the frame A by U-bolts, so that the sowing unit B can be moved as a whole on the frame A, adapting to the sowing operations of different large row spacings in the corn triangular seedling mode, preferably adjusting the distance to 55-80CM, wherein the seeding device B1 and the covering wheel B2 can be moved as a whole to adjust the spacing, and can also adjust their respective spacings according to the situation; the seeding port of the seeding device B1 is connected to the sowing leg B6 through the partition cavity type annular seed guide belt B14, and the partition cavity type annular seed guide belt B14 can drive the seeds to move when rotating, guide the discharged seeds, so that the seeding point of the seeding device B1 is closer to the ground, and the plant spacing is uniform.

[0028] A sprocket or commutator B11 is arranged between the two seed-metering devices B1, and sleeves are coaxially arranged on both sides of the sprocket or commutator B11. The two sleeves are respectively sleeved on the rotating shafts of the two seed-metering devices B1, so that the two seed-metering devices B1 are coaxially rotatably connected through the sprocket or commutator B11; when the seed-metering device B1 is a nail-type seed-metering device or a spoon-wheel type seed-metering device, the rotating shaft B7 between the seed-metering devices B1 is coaxially connected through the sprocket B11, because the sleeves coaxially arranged on both sides of the sprocket B11 are sleeved on the rotating shaft B7, the axial movement of the sleeve is realized, wherein the sleeve is a multi-hole tube and matches the shape of the rotating shaft B7, so as to facilitate the movement and adjustment of the spacing between the two seed-metering devices B1 and drive the rotating shaft to rotate, wherein a tightening bolt can also be arranged on the sleeve to tighten and fix the sleeve and the rotating shaft B7, so as to reduce the probability of shaking of the sprocket B11 during use.

[0029] Among them, a drip irrigation tape placement rack B8 is arranged on the rear mounting frame B5, and a drip irrigation tape furrow opener B10 and a drip irrigation tape guide wheel are arranged on the rear mounting frame B5 between the two covering wheels B2, and the drip irrigation tape furrow opener B11 and the drip irrigation tape guide wheel B13 correspond to each other front and back; the drip irrigation tape is laid on the ground through the drip irrigation tape furrow opener B11 and the drip irrigation tape guide wheel B13, which is easy to operate. Embodiment 2

[0030] like Figure 1 and 2 As shown, this embodiment is obtained by describing in detail the technical features of the seed meter B1 on the basis of the embodiment one. The remaining technical features are the same as those of the embodiment one, and the similarities are not repeated here. The difference between this embodiment and the embodiment one is that the seed meter B1 is one of the air suction type seed meter, the nail type seed meter, and the spoon wheel type seed meter.

[0031] In this embodiment, different types of seeding devices can be selected according to actual conditions to expand the scope of use. When replacing, only the seeding device B1 needs to be replaced, and other parts do not need to be changed. When the seeding device B1 is selected as an air-suction seeding device, a negative pressure fan used in conjunction with the air-suction seeding device needs to be added. Embodiment 3

[0032] like Figure 1 and 6 As shown, this embodiment is obtained by describing in detail the technical features such as the partition cavity type annular seed guide belt B14 on the basis of the second embodiment. The remaining technical features are the same as those of the second embodiment, and the similarities are not repeated here. The difference between this embodiment and the second embodiment is that the annular seed guide belt B143 in the partition cavity type annular seed guide belt B14 is a chain, and the two annular seed guide belts B143 are installed in a rotationally staggered manner, so that the originally corresponding partition cavities on the two annular seed guide belts B143 are misaligned.

[0033] In this embodiment, since the annular seed guide belt B143 is a chain, the partition B144 is fixed on the chain by a chain pin, and the two ends of the chain are respectively sleeved on the driving sprocket B141 and the driven sprocket B142, and the driving sprocket B141 is coaxially connected to the rotating shaft of the seed metering device B1. When the chain is installed on the driving sprocket B141 and the driven sprocket B141, the same position on the chain is displaced by several teeth before installation, so that the originally corresponding partition cavities on the two annular seed guide belts B143 are displaced. Therefore, two seeds a discharged from the seed discharge ports of the two seed metering devices B1 at the same time fall into different partition cavities on the annular seed guide belt B143, and the two seeds are also displaced in the annular seed guide belt B143, so that there is a time difference when the seeds fall to the ground, forming triangular seeding and sowing; therefore, triangular seeding and sowing can be achieved without deflecting the rotating shaft or seeding disk in the seed metering device B1. Embodiment 4

[0034] like Figure 1 and 2 As shown, this embodiment is obtained by adding technical features such as a profiling mechanism B12 on the basis of the third embodiment. The remaining technical features are the same as those of the third embodiment, and the similarities are not repeated here. Among them, the difference between this embodiment and the third embodiment is that the covering wheel B2 is hinged to the rear mounting frame B5 through the profiling mechanism B12.

[0035] In this embodiment, the seed metering device B1 is pressed on the ground by its own weight, and the covering wheel B2 is pressed on the ground by its own weight and a spring, so that the seed metering device B1 and the covering wheel B2 can float up and down according to the terrain to ensure the sowing quality.

[0036] Among them, after replacing the contoured sowing unit B disclosed in the above embodiment with the existing sowing machine and improving the structure of the ground wheel C and the transmission F, another technical solution disclosed in the present application is formed, which is: Figure 1-4As shown, a seeder with adjustable small row spacing in a triangular seedling mode of corn comprises a frame A, a ground wheel C, and a sowing unit B. The sowing unit B is the above-mentioned contoured sowing unit with a row spacing adjustment function. At least two sowing units B are arranged side by side on the frame A. The ground wheel C is connected to the frame A through a connecting frame D. The ground wheel C is linked to a transmission F on the connecting frame D through a chain E. The transmission F drives a sprocket or a commutator B11 to rotate synchronously through a transmission mechanism G (the transmission mechanism G can be a sprocket chain transmission, or a transmission shaft transmission, specifically for the purpose of realizing the transmission function, and the specific structure is not limited here); the transmission F and the ground wheel C are connected as a whole, the power of the ground wheel C is directly transmitted to the input shaft of the transmission F through the chain E, and then the output shaft N of the transmission F uniformly drives the transmission mechanism G, and drives the seeding device B1 through the sprocket B11. One seeding device B1 can complete the speed adjustment, which is convenient to operate and reduces costs. The integrated design also saves the internal space of the seeder and reduces the interference with other equipment during maintenance.

[0037] At the same time, the number of transmissions F can be adjusted according to the number of ground wheels C. The output shafts Q between multiple seeding devices F can be coaxially connected. One ground wheel C can drive all seeding devices F to work and ensure the sowing effect.

[0038] Among them, the connecting frame D includes a first connecting frame and a second connecting frame that are hinged, and the first connecting frame and the second connecting frame are both hinged with a support column H, and the support column H is provided with a screw hole, and an adjusting screw J is screwed into the screw holes on the two support columns H; the height of the ground wheel C is adjusted by the screwed adjusting screw J on the connecting frame D to adapt to different sowing depths.

[0039] Among them, the frame A is provided with an obstacle clearing shaft L linked with the gearbox M. The obstacle clearing shaft L is linked with the obstacle clearing knife group through the chain box N. The obstacle clearing knife group is an obstacle clearing blade K arranged on both sides of the chain box N. The obstacle clearing knife group is arranged in front of the sowing leg B6, and the rotation trajectory of the obstacle clearing knife group is between the two sowing legs B6; a plurality of groups of corresponding obstacle clearing knife groups are arranged in front of the sowing unit B, and the rotation trajectory of the obstacle clearing knife group is between the two sowing legs B6. When rotating driven by the gearbox M, it can disperse the debris blocked in the sowing leg B6 to reduce congestion.

[0040] Among them, a fertilizer box O and a fertilizer leg P are arranged on the frame A, and the fertilizer box O and the fertilizer leg P are connected by a hose; the integrated operation of fertilizing, sowing and laying of drip irrigation tape is completed.

[0041] The process of using the overall technical solution formed by the above-mentioned embodiments is as follows: after adjusting the height of the ground wheel C by adjusting the screw J, the tractor is connected to the frame A, the hydraulic power or transmission shaft power of the tractor is linked with the gearbox M, the obstacle clearing shaft L drives the obstacle clearing blade K to rotate, and the debris blocked in the seeding furrow opener B6 is scattered, the ground wheel C rotates and drives the input shaft of the transmission F to rotate through the chain E, the output shaft Q of the transmission F is linked with the commutator B11 through the transmission mechanism G, and drives the seed metering device B1 to work, and the seeds discharged by the seed metering device B1 are dislocated through the partition cavity annular seed guide belt B14 and fall into the seeding leg B6, and are suppressed and covered by the covering wheel B2 to complete the small double-row dislocated sowing.

[0042] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A sowing profiling unit capable of adjusting the small row spacing of a corn triangular seedling pattern, comprising a frame, a seed meter and a soil covering wheel, characterized in that: The two seed-metering devices are arranged side by side through a front mounting frame and a rear mounting frame, and at least two groups of connecting holes connected to the seed-metering devices are arranged on the front mounting frame and the rear mounting frame, and each group of connecting holes on the front mounting frame and the rear mounting frame correspond front to back. A sowing leg is arranged under the seed-metering device, and the seed-discharging port of the seed-metering device is connected with the sowing leg through a partition cavity type annular seed guide belt. The front mounting frame is hinged with a four-link rod, and the covering wheel is arranged on the rear mounting frame through a connecting hole, and the sowing leg and the covering wheel correspond front to back; a sprocket or a commutator is arranged between the two seed-metering devices, and sleeves are coaxially arranged on both sides of the sprocket or the commutator, and the two sleeves are respectively sleeved on the rotating shafts of the two seed-metering devices, so that the two seed-metering devices are coaxially rotatably connected through the sprocket or the commutator.

2. The sowing profiling monomer capable of adjusting the small row spacing of the corn triangular seedling determination mode according to claim 1 is characterized in that: The seed metering device is one of an air suction type seed metering device, a nail type seed metering device, and a spoon wheel type seed metering device.

3. The sowing profiling monomer capable of adjusting the small row spacing of the corn triangular seedling determination mode according to claim 2 is characterized in that: The annular seed guide belt in the partition cavity type annular seed guide belt is a chain, and the two annular seed guide belts are installed in a rotationally staggered manner, so that the originally corresponding partition cavities on the two annular seed guide belts are staggered.

4. The sowing profiling monomer capable of adjusting the small row spacing of the corn triangular seedling determination mode according to claim 1 is characterized in that: The soil covering wheel is hinged to the rear mounting frame through a contouring mechanism.

5. The sowing profiling monomer capable of adjusting the small row spacing of the corn triangular seedling determination mode according to claim 4 is characterized in that: A drip irrigation belt placement rack is arranged on the rear mounting frame, and a drip irrigation belt furrow opener and a drip irrigation belt guide wheel are arranged on the rear mounting frame between the two soil covering wheels, and the drip irrigation belt furrow opener and the drip irrigation belt guide wheel correspond to each other front and back.

6. A seeder capable of adjusting the small row spacing of a corn triangular seedling mode, comprising a frame, a ground wheel, and a sowing unit, wherein the sowing unit is a sowing profiling unit capable of adjusting the small row spacing of a corn triangular seedling mode according to any one of claims 1 to 5, characterized in that: At least two of the sowing units are arranged side by side on the frame, the ground wheel is connected to the frame through a connecting frame, the ground wheel is linked to a transmission on the connecting frame through a chain, and the transmission drives the sprocket or commutator to rotate synchronously through a transmission mechanism.

7. The seeder capable of adjusting the small row spacing of the corn triangular seedling pattern according to claim 6 is characterized by: The connecting frame comprises a first connecting frame and a second connecting frame which are hinged, wherein the first connecting frame and the second connecting frame are both hinged with supporting columns, the supporting columns are provided with screw holes, and adjusting screws are screwed into the screw holes on the two supporting columns.

8. The seeder capable of adjusting the small row spacing of the corn triangular seedling pattern according to claim 6 is characterized by: The frame is provided with a clearance shaft linked with the gearbox, the clearance shaft is linked with the clearance knife group through a chain box, the clearance knife group is arranged in front of the sowing legs, and the rotation track of the clearance knife group is between the two sowing legs.

9. The seeder capable of adjusting the small row spacing of the corn triangular seedling pattern according to claim 8, characterized in that: The obstacle clearing blade set is obstacle clearing blades arranged on both sides of the chain box.

10. The seeder capable of adjusting the small row spacing of the corn triangular seedling mode according to claim 6, characterized in that: A fertilizer box and a fat leg are arranged on the frame, and the fertilizer box and the fat leg are communicated with each other through a hose.

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