Corn triangular final singling mode anti-winding seeding profiling monomer and seeding machine

Abstract

The corn triangular final singling mode anti-winding seeding profiling monomer comprises a rack, furrow openers, seed-metering devices, soil covering wheels and press wheels, the two seed-metering devices are arranged side by side through a front mounting frame and a rear mounting frame, the seed-metering devices comprise seeding furrow openers and disc furrow openers, the seeding furrow openers are arranged on the rack through connecting plates, and the disc furrow openers are arranged on the rack through connecting plates. The disc furrow opener is arranged below the seed sowing device, a seed sowing opening of the seed sowing device is located between two discs in the disc furrow opener, the front mounting frame is connected with the rack, the soil covering wheel is arranged on the rear mounting frame, and the disc furrow opener, the seed sowing furrow opener and the soil covering wheel correspond to one another front and back; according to the application, modification is carried out on the basis of an existing seed-metering device, the seeding furrow opener is additionally arranged on the rack, and the transmission and the land wheel are connected into a whole, so that the distance between the seeding furrow opener and the disc furrow opener is increased, and the congestion probability is reduced; and the output shaft of the transmission uniformly drives the seed-metering device through the chain wheel, so that one seed-metering device can finish variable-speed adjustment, and the operation is convenient.

Description

Technical Field

[0001] The invention relates to the technical field of agriculture, and in particular to a corn triangular seedling mode anti-winding sowing profiling unit and a sowing machine. Background Art

[0002] At present, when a corn planter is sowing, after the fertilizing legs have applied fertilizer, the sowing legs connected to the seed meter are used to open furrows and sow. Especially in the process of sowing in the corn triangular seedling mode, two seed meters are needed to carry out small double-row sowing. At this time, the two sowing legs are close to each other, and the small space is prone to congestion, which affects the sowing effect. At the same time, basically one seed meter is equipped with one transmission. This configuration causes a planter to match the same number of transmissions as the seed meter. 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 sowing legs are easily blocked, which affects the sowing quality, and the gearbox usage is large, the operation is complicated and the cost is high.

[0004] In order to solve the above technical problems, the present invention provides a technical solution: a corn triangular seedling mode anti-winding sowing profiling monomer, comprising a frame, a furrow opener, a seeding device, a covering wheel and a pressing wheel, wherein the two seeding devices are arranged side by side through a front mounting frame and a rear mounting frame, the furrow opener comprises a sowing furrow opener and a disc furrow opener, the sowing furrow opener is arranged on the frame through a connecting plate, the disc furrow opener is arranged below the seeding device, and the seeding port of the seeding device is connected to a partition cavity type annular seed guide belt, the bottom of the partition cavity type annular seed guide belt is located between two discs in the disc furrow opener, the front mounting frame is hinged to the frame through a seeding four-link rod, the covering wheel is arranged on the rear mounting frame, and the disc furrow opener, the sowing furrow opener and the covering wheel correspond to each other front and back; The pressing wheel is arranged between the two disc openers and is connected to the rear mounting frame.

[0005] Furthermore, the connecting plate, the front mounting frame, and the rear mounting frame are provided with the same number of connecting holes, and each group of connecting holes on the connecting plate, the front mounting frame, and the rear mounting frame corresponds to each other front to back.

[0006] 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.

[0007] Furthermore, a sprocket is provided between the two seed-metering devices, sleeves are coaxially provided on both sides of the sprocket, 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 connected through the sprocket.

[0008] 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.

[0009] Furthermore, the pressing wheel and the covering wheel are both hinged to the rear mounting frame via a contouring mechanism.

[0010] To solve the above technical problems, the present invention provides another technical solution: a corn triangular seedling mode anti-entanglement seeder, comprising a frame, a ground wheel, and a sowing unit, wherein the sowing unit is the above-mentioned corn triangular seedling mode anti-entanglement sowing profiling unit, 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 to rotate synchronously through a transmission mechanism.

[0011] 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.

[0012] Furthermore, a clearance shaft linked to a gearbox is provided on a frame in front of the sowing furrow opener in the sowing unit, and at least two groups of clearance knife groups are arranged on the clearance shaft at intervals, and the rotation trajectory of each group of the clearance knife groups is between the two sowing furrow openers.

[0013] Furthermore, the obstacle clearing knife set includes two obstacle clearing blades which are mounted in a set and fixed on the obstacle clearing rotating shaft.

[0014] The beneficial effects of the present invention are: The present application is modified on the basis of the existing sowing unit, and a sowing furrow opener corresponding to the front and rear of the seeding device is added to the frame. After the sowing furrow opener loosens the soil and opens the furrow, a disc furrow opener is used to carry out sowing operations in the soil after the furrowing, and the distance between the sowing furrow opener and the disc furrow opener can be adjusted by adjusting the length of the seeding four-link rod. Due to the obstruction of the two sowing furrow openers, the probability of congestion at the disc furrow opener is reduced, and the sowing quality is improved; each group of connecting holes on the connecting plate, the front mounting frame, and the rear mounting frame correspond to each other front and back, which is convenient for personnel to adjust the distance between the two sowing furrow openers, the two seeding devices, and the two covering wheels according to the sowing row spacing, so as to 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 seeding furrow opener and the seeding four-link are connected to the frame by U-bolts, so that the seeding unit and the seeding furrow opener can be moved as a whole on the frame to adapt to the seeding operations of different large row spacings in the corn triangular seedling mode, and the preferred adjustment distance is 55-80CM; when the seeding device is a nail-type seeding device or a spoon wheel seeding device, the rotating shafts between the seeding devices are coaxially connected through sprockets. Since the coaxially arranged sleeves on both sides of the sprocket are sleeved on the rotating shaft, the axial movement of the sleeves is realized, which is convenient for moving and adjusting the spacing between the two seeding devices, and the sleeves and the rotating shaft are tightened by bolts to prevent the chain from falling off due to the shaking of the sprocket during use; the pressure wheel and the covering wheel are both hinged to the rear mounting frame through a profiling mechanism, and the pressure wheel is pressed on the ground by its own gravity, and the covering wheel is pressed on the ground by its own gravity. The ground wheel is pressed on the ground by its own gravity and springs, so that the seed meter and the covering wheel can float up and down according to the terrain to ensure the quality of seeding. The transmission and the ground wheel are connected as a whole. 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 multiple seed meters through a sprocket. One transmission can complete the speed adjustment, which is convenient to operate and reduces costs. The integrated design also saves the internal space of the seed drill and reduces the interference with other equipment during maintenance. The height of the ground wheel can be adjusted by a screw-connected adjustment screw on the connecting frame to adapt to different seeding depths. In front of the seeding furrow opener in the seeding unit, there are multiple groups of corresponding obstacle clearing knife groups, and the rotation trajectory of the obstacle clearing knife group is between the two seeding furrow openers. When it rotates under the action of the spring, it can break up the debris that is blocked in the seeding furrow opener and reduce congestion; the seed discharge port of the seed meter is connected with the partition cavity type annular seed guide belt, and the annular seed guide belt in the partition cavity type annular seed guide belt can drive the seeds to move when it rotates, and guide the discharged seeds, so that the seeding point of the seed meter is closer to the ground, the plant spacing is uniform, and the height of the seed meter is increased, and the bottom space of the seed meter is increased, so that debris can pass more easily and the chance of congestion is reduced. 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 seed discharge 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 five of the drawings of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying 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 This is a structural diagram of a seed drill.

[0020] Figure 4 This is a schematic diagram of the structure of the ground wheel.

[0021] Figure 5 It is a schematic diagram of the structure of the partition cavity type annular seed guide belt.

[0022] In the figure, B1-seeder, B2-soil covering wheel, B3-pressing wheel, B4-front mounting frame, B5-rear mounting frame, B6-seeding furrow opener, B7-disc furrow opener, B8-connecting plate, B9-seeding four-link rod, B10-connecting hole, B11-sprocket, B12-profile mechanism, B13-partition cavity type annular seed guide belt, a-two seeds discharged simultaneously from the seeding ports of two seeders; B131-driving sprocket, B132-driven sprocket, B133-annular seed guide belt, B134-partition plate; 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-output shaft. DETAILED DESCRIPTION

[0023] 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.

[0024] 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.

[0025] 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

[0026] like Figure 1-2 As shown, a corn triangular seedling determination mode anti-winding sowing profiling unit includes a frame A, a furrow opener, a seeding device B1, a covering wheel B2 and a pressing wheel B3. Two seeding devices B1 are arranged side by side through a front mounting frame B4 and a rear mounting frame B5. The seeding device B1 includes a sowing furrow opener B6 and a disc furrow opener B7. The sowing furrow opener B6 is arranged on the frame A through a connecting plate B8. The disc furrow opener B7 is arranged below the seeding device B1, and the seeding port of the seeding device B1 is connected to a partition cavity type annular seed guide belt B13. The bottom of the partition cavity type annular seed guide belt B13 is located between two discs in the disc furrow opener B7. The front mounting frame B4 is hinged to the frame A through a seeding four-link B9. The covering wheel B2 is arranged on the rear mounting frame B5. The disc furrow opener B7 , the sowing furrow opener B6 and the covering wheel B3 correspond to each other front and back; the pressing wheel B3 is arranged between the two disc furrow openers B7 and connected to the rear mounting frame B5; the two sowing furrow openers B6 are blocked in front of the two disc furrow openers B7, and the sowing furrow openers B6 are used to block the debris in advance to prevent the debris from accumulating at the disc furrow openers B7, thereby reducing the probability of congestion at the disc furrow openers B7; the seed discharge port of the seed meter is connected to the partition cavity type annular seed guide belt, and the annular seed guide belt in the partition cavity type annular seed guide belt can drive the seeds to move when rotating, and guide the discharged seeds, so that the seeding point of the seed meter is closer to the ground, the plant spacing is uniform, and the height of the seed meter can be increased, and the bottom space of the seed meter is increased, so that debris can pass more easily and the probability of congestion can be reduced.

[0027] A sowing furrow opener B6 corresponding to the front and rear of the seeding device B1 is added to the frame A. After the sowing furrow opener B6 loosens the soil and opens the furrow, a disc furrow opener B7 is used to carry out sowing operations in the furrowed soil. The distance between the sowing furrow opener B6 and the disc furrow opener B7 can be adjusted by adjusting the length of the seeding four-link B9. Due to the obstruction of the two sowing furrow openers B6, the probability of congestion at the disc furrow opener B7 is reduced; and the front and rear corresponding arrangement of the sowing furrow opener B6 and the disc furrow opener B7 not only reduces the probability of congestion at the disc furrow opener B7, but also performs furrowing and loosening treatment on the soil to be sown in front of the disc furrow opener B7 in advance, thereby realizing no-till sowing, and there is no need to plow the entire land in advance.

[0028] Among them, the same number of connecting holes B10 are provided on the connecting plate B8, the front mounting frame B4 and the rear mounting frame B5, and each group of connecting holes B10 on the connecting plate B8, the front mounting frame B4 and the rear mounting frame B5 correspond to each other front and back; it is convenient for personnel to adjust the spacing between the two sowing furrow openers B6, the two seeding devices B1 and the two covering wheels B2 according to the small sowing row spacing, so as to 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 sowing furrow opener B6 and the seeding four-link B9 are connected to the frame A by U-bolts, so that the sowing unit B and the sowing furrow opener B6 can be moved as a whole on the frame A, so as to adapt to the sowing operations with different large row spacings in the corn triangular seedling mode, and the preferred adjustment distance is 55-80CM. Embodiment 2

[0029] like Figure 1 , 2 As shown in Figure 5, this embodiment is obtained by adding technical features such as a sprocket B11 on the basis of the first embodiment. The remaining technical features are the same as those of the first embodiment, and the similarities are not repeated here. The difference between this embodiment and the first embodiment is that: the seed metering device B1 is one of an air suction type seed metering device, a nail type seed metering device, and a spoon wheel type seed metering device; a sprocket B11 is arranged between the two seed metering devices B1, and sleeves are coaxially arranged on both sides of the sprocket 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 connected through the sprocket B11.

[0030] In this embodiment, when the seed metering device B1 is a nail-type seed metering device or a spoon wheel-type seed metering device, the rotating shafts between the seed metering devices B1 are coaxially connected through the sprocket B11. Since the coaxially arranged sleeves on both sides of the sprocket B11 are sleeved on the rotating shaft, the axial movement of the sleeve is realized. The sleeve is a multi-hole tube, which is convenient for moving and adjusting the distance between the two seed metering devices B1 and driving the rotating shaft to rotate. A tightening bolt can also be provided on the sleeve to tighten the sleeve and the rotating shaft to reduce the chance of shaking of the sprocket B11 during use. Embodiment 3

[0031] like Figure 2 and 5 As shown, this embodiment is obtained by describing in detail the technical features such as the partition cavity type annular seed guide belt B13 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 B133 in the partition cavity type annular seed guide belt B13 is a chain, and the two annular seed guide belts B133 are installed in a rotationally staggered manner, so that the originally corresponding partition cavities on the two annular seed guide belts B133 are misaligned.

[0032] In this embodiment, since the annular seed guide belt B133 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 B131 and the driven sprocket B132, and the driving sprocket B131 is coaxially connected to the rotating shaft of the seed metering device B1. When the chain is installed on the driving sprocket B131 and the driven sprocket B131, 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 B133 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 B133, and the two seeds are also displaced in the annular seed guide belt B133, 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

[0033] 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 pressing wheel B3 and the covering wheel B2 are both hinged to the rear mounting frame B5 through the profiling mechanism B12.

[0034] In this embodiment, the pressing wheel B3 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 pressing wheel B3 and the covering wheel B2 can float up and down according to the terrain to ensure the sowing quality.

[0035] 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 corn triangular seedling mode anti-entanglement seeder includes a frame A, a ground wheel C, and a sowing unit B. The sowing unit B is the above-mentioned corn triangular seedling mode contoured sowing unit, 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, and the transmission F drives the sprocket B11 to rotate synchronously through a transmission mechanism G (the transmission mechanism G can adopt a sprocket chain transmission, and can also adopt 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 seed metering device B1 through the sprocket B11, and one transmission F can complete the speed adjustment, which is convenient to operate and reduces the cost. The integrated design also saves the internal space of the seeder and reduces the interference with other equipment during maintenance.

[0036] At the same time, the number of transmissions F can be adjusted according to the number of ground wheels C. The output shafts N 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.

[0037] 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.

[0038] Among them, a clearance shaft L linked to the gearbox M is arranged on the frame A in front of the sowing furrow opener B6 in the sowing unit B, and at least two groups of clearance knife groups are arranged on the clearance shaft L at intervals, and the rotation trajectory of each group of clearance knife groups is between the two sowing furrow openers B6; the clearance knife group includes two clearance blades K which are set and fixed on the clearance shaft L; a plurality of groups of corresponding clearance knife groups are arranged in front of the sowing furrow opener B6 in the sowing unit B, and the rotation trajectory of the clearance knife group is between the two sowing furrow openers B6. When rotating driven by the gearbox M, the debris blocked in the sowing furrow opener B6 can be dispersed to reduce congestion.

[0039] The process of using the overall technical solution formed by the above-mentioned embodiments is as follows: after adjusting the height of the screw J and the ground wheel C, 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 removal shaft L drives the obstacle removal 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 of the transmission F is linked with the sprocket B11 through the transmission mechanism G, and drives the seed metering device B1 to work, the seeds discharged by the seed metering device B1 are dislocated through the partition cavity annular seed guide belt B14 and fall into the disc furrow opener B7, and are suppressed and covered by the pressing wheel B3 and the covering wheel B2 to complete the small double-row dislocated sowing.

[0040] 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 corn triangular seedling determination mode anti-entanglement sowing profiling unit, comprising a frame, a furrow opener, a seed meter, a covering wheel and a pressing wheel, characterized in that: The two seeding devices are arranged side by side through a front mounting frame and a rear mounting frame, the furrow opener includes a sowing furrow opener and a disc furrow opener, the sowing furrow opener is arranged on the frame through a connecting plate, the disc furrow opener is arranged below the seeding device, and the seeding port of the seeding device is connected with a partition cavity type annular seed guide belt, the bottom of the partition cavity type annular seed guide belt is located between two discs in the disc furrow opener, the front mounting frame is hinged to the frame through a seeding four-link, the covering wheel is arranged on the rear mounting frame, and the disc furrow opener, the sowing furrow opener and the covering wheel correspond to each other front and back; The pressing wheel is arranged between the two disc openers and is connected to the rear mounting frame.

2. The anti-winding sowing profiling monomer of the corn triangular seedling determination mode according to claim 1 is characterized in that: The connecting plate, the front mounting frame and the rear mounting frame are provided with the same number of connecting holes, and each group of connecting holes on the connecting plate, the front mounting frame and the rear mounting frame corresponds to each other front to back.

3. The anti-winding sowing profiling monomer of the corn triangular seedling determination mode according to claim 2 is characterized by: 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.

4. The anti-winding sowing profiling monomer of the corn triangular seedling determination mode according to claim 3 is characterized by: A sprocket is arranged between the two seed-metering devices, sleeves are coaxially arranged on both sides of the sprocket, 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 connected through the sprocket.

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: 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.

6. The anti-winding sowing profiling monomer of the corn triangular seedling determination mode according to claim 1 is characterized by: The pressing wheel and the soil covering wheel are both hinged to the rear mounting frame through a contouring mechanism.

7. A corn triangular seedling mode anti-entanglement seeder, comprising a frame, a ground wheel, and a sowing unit, wherein the sowing unit is a corn triangular seedling mode anti-entanglement sowing profiling unit according to any one of claims 1 to 6, 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 to rotate synchronously through a transmission mechanism.

8. The corn triangular seedling determination mode anti-winding seeder according to claim 7 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.

9. The corn triangular seedling determination mode anti-winding seeder according to claim 7, characterized in that: A clearance shaft linked to a gearbox is arranged on a frame in front of the sowing furrow opener in the sowing unit, and at least two groups of clearance knife groups are arranged on the clearance shaft at intervals, and the rotation trajectory of each group of the clearance knife groups is between the two sowing furrow openers.

10. The corn triangular seedling determination mode anti-winding seeder according to claim 9, characterized in that: The obstacle clearing knife set comprises two obstacle clearing blades which are fitted together and fixed on the obstacle clearing rotating shaft.

Images