Seeding device for planting sorghum hybrid sudangrass

Abstract

The invention provides a seeding device for sorghum hybrid sudangrass planting, and belongs to the technical field of sorghum hybrid sudangrass planting, the seeding device comprises a group of oppositely arranged seed metering main plates, a seeding cavity is reserved between the group of seed metering main plates, and an inclined slide carriage is arranged between the seed metering main plates; one end of the seed metering cylinder penetrates through the seed metering main plate to enter the seed discharging cavity, the seed metering cylinder is located on the inner side of the arc-shaped material limiting plate, and at least one circle of seed storage counter bores are formed in the surface of the seed metering cylinder in a penetrating mode in the radial direction of the seed metering cylinder; the transmission assembly is arranged on one side of the seed metering main plates, and the seed pushing assembly is located between the seed metering main plates, is arranged in the seed metering cylinder and is used for pushing residual seeds in the seed storage counter bores into the seed discharging pipes; the seed storage box is clamped above the seed metering main plate; the shallow burying assembly is clamped at the lower bottom end of the seed discharging pipe; and the shallow burying assembly is used for shallowly burying seeds falling from the seed discharging pipe.

Description

Technical Field

[0001] The invention belongs to the technical field of sorghum planting, and in particular relates to a sowing device for sorghum planting. Background Art

[0002] Sorghum is an annual herbaceous plant of the genus Sorghum in the Poaceae family. Sorghum has extremely strong vitality, its root system is well developed, and there are thick adventitious roots at the base of the stem, which can penetrate 2 meters underground. It can still thrive in arid environments. This characteristic makes it play an important role in the management of loess or grasslands. In areas where sorghum is planted, the soil structure is significantly improved. Its root system can fix sand and prevent wind, and reduce soil erosion. At the same time, as a high-quality forage grass, sorghum has extremely high nutritional value. It is rich in crude protein and minerals, has good palatability, and livestock grows rapidly after eating it. Sorghum seeds are mostly round and oval, with small grains and brown in color.

[0003] With the rapid development of agricultural machinery in my country, especially in the field of sowing, different types of sowing devices have become more mature. For example, the invention patent with patent number CN201911155172.5 discloses an air-suction seeder for small and medium-sized grain seeds, including a seed box, a seeding disc, a negative pressure air chamber shell, and a seeding tube. The negative pressure air chamber shell is fixedly installed on the seeder frame, an air chamber is arranged in the negative pressure air chamber shell, a negative pressure air duct is arranged on the top of the negative pressure air chamber shell, and a relatively rotatable seeding disc is installed at the bottom of the negative pressure air chamber shell. The seeding disc is driven to rotate by a motor, and the seeding disc is evenly provided with a circular array of seed suction air ducts, and a seed suction air nozzle is installed at the bottom of the seed suction air duct. The seed box and the seeding tube are respectively fixedly installed on both sides of the seeding disc, and a seed filling slide is arranged on the bottom outlet of the seed box, and an airflow barrier is installed on the side wall of the air chamber. The present invention uses a negative pressure seed suction method to transport seeds and grains, and the transportation is stable and efficient, which effectively reduces the phenomenon of seed damage and missed sowing and re-seeding, and ensures the seeding efficiency of the seeder.

[0004] However, the pneumatic seeding device is expensive and highly mechanized. It is suitable for large-scale planting (more than 50 acres), and the land types for planting are mostly flat or gently sloping. For small and medium-sized farmers, the land is mostly scattered and the land types for planting are mostly hilly, which is not suitable for large-scale pneumatic seeding devices. Summary of the invention

[0005] Based on this, the present invention provides a sowing device for planting sorghum, which has a simple structure, is easy to repair, and has a low maintenance cost, and is suitable for small and medium-sized farmers with scattered land.

[0006] The technical solution of the present invention to solve the above technical problems is as follows: A sowing device for planting sorghum, comprising: A set of relatively arranged seed - metering main boards, with a seed - dropping cavity reserved between a set of the seed - metering main boards. An inclined chute is arranged between the seed - metering main boards, and a seed - dropping pipe is arranged below the inclined chute. An arc - shaped material - limiting plate is also arranged between the seed - metering main boards, and the arc - shaped material - limiting plate is located on the side away from the inclined chute; A seed - metering cylinder, one end of which passes through the seed - metering main board into the seed - dropping cavity. The seed - metering cylinder is located inside the arc - shaped material - limiting plate. Along the radial direction of the seed - metering cylinder, at least one circle of seed - storing sinkholes is perforated on its surface; A transmission assembly, which is arranged on one side of the seed - metering main board. The transmission assembly is connected to the seed - metering cylinder and drives the seed - metering cylinder to rotate; A seed - pushing assembly, which is located between a set of the seed - metering main boards and is arranged inside the seed - metering cylinder. The seed - pushing assembly is connected to the transmission assembly and rotates synchronously with the seed - metering cylinder, and is used to push the remaining seeds in the seed - storing sinkholes into the seed - dropping pipe; and A seed - storage box clamped above the seed - metering main board and a shallow - burying assembly clamped at the lower end of the seed - dropping pipe. The shallow - burying assembly is used for shallow - burying the seeds dropped by the seed - dropping pipe.

[0007] Preferably, the transmission assembly includes a bearing seat body, a transmission main shaft, a star - shaped connecting rod and a transmission gear. The bearing seat body is installed on one side of the seed - metering main board. The transmission main shaft is coaxially arranged with the seed - metering cylinder. One end of the transmission main shaft is installed on the bearing seat body. The star - shaped connecting rod is installed at the other end of the transmission main shaft, and the end of the star - shaped connecting rod is connected to the seed - metering cylinder.

[0008] Preferably, the transmission assembly further includes an alignment pin, and the alignment pin passes through the seed - metering cylinder and is detachably connected to the star - shaped connecting rod.

[0009] Preferably, the seed - pushing assembly includes a transmission secondary shaft and at least one group of transmission sleeves. The transmission secondary shaft is in transmission connection with the transmission main shaft. The transmission secondary shaft is located directly above the seed - dropping pipe. The transmission sleeves are coaxially sleeved on the transmission secondary shaft. A plurality of ejector rods are evenly arranged on the outer surface of the transmission sleeve. Vertically, the ejector rods extend into the seed - storing sinkholes directly below the transmission sleeve.

[0010] Preferably, the transmission assembly further includes a first pulley, a second pulley and a transmission belt. The first pulley is sleeved on the transmission main shaft and is located on the side away from the star - shaped connecting rod. The second pulley is sleeved on one end of the transmission secondary shaft. The first pulley and the second pulley are in transmission connection through the transmission belt.

[0011] Preferably, the sowing device for sorghum sudanense planting further includes a seed cleaning brush, which is arranged between a group of the seed metering main boards and is located directly above the seed metering cylinder.

[0012] Preferably, there are two circles of the seed storage sinkholes, which are arranged staggeredly in sequence.

[0013] Preferably, the cross-section of the seed storage sinkhole is a regular hexagon.

[0014] Preferably, the sowing device for sorghum sudanense planting further includes a baffle assembly, which includes a sliding baffle, an adjusting pin plate and a lock. The sliding baffle passes through the seed metering main board and fits on the outer surface of the seed metering cylinder. The sliding baffle can enclose a circle of the seed storage sinkholes. An adjusting hole is formed on the sliding baffle. The adjusting pin plate passes through the adjusting hole and is arranged on the seed metering main board in a fitting manner. The lock passes through the adjusting pin plate and is fixed on the seed metering main board.

[0015] Preferably, the shallow burial assembly includes a pair of side plates, a hinge rod, a return spring and a pair of shallow burial discs. The pair of side plates are installed on the side wall at the bottom end of the seed dropping pipe. The hinge rod is arranged between the pair of side plates and is hinged to the side plates. The return spring is located below the hinge rod. One end of the return spring is connected to the side plate, and the other end of the return spring is connected to the hinge rod. The pair of shallow burial discs are arranged on both sides of the hinge rod, and the pair of shallow burial discs are arranged obliquely relative to each other.

[0016] Compared with the prior art, the present invention has at least the following advantages: Description of the Drawings

[0017] Figure 1 It is an axonometric view of the sowing device for sorghum sudanense planting.

[0018] Figure 2 It is a front view of the sowing device for sorghum sudanense planting.

[0019] Figure 3 It is a bottom view of the sowing device for sorghum sudanense planting.

[0020] Figure 4 It is an axonometric view of the transmission assembly.

[0021] Figure 5 It is a left view of the sowing device for sorghum sudanense planting (without the shallow burial assembly).

[0022] Figure 6 It is Figure 4 -A axonometric view.

[0023] Figure 7 It is an axonometric view of the seed metering cylinder and the seed metering main board.

[0024] Figure 8For Figure 7 -B axonometric view.

[0025] Figure 9 It is a sowing schematic diagram of a sowing device for sorghum sudanense planting.

[0026] In the figure: seed metering main board 100, inclined chute 110, seed dropping pipe 120, arc-shaped material limiting plate 130, seed metering cylinder 200, seed storage sink 210, transmission assembly 300, bearing seat body 310, transmission main shaft 320, star-shaped connecting rod 330, transmission gear 340, alignment pin 350, first pulley 360, second pulley 370, transmission belt 380, seed pushing assembly 400, transmission secondary shaft 410, transmission sleeve 420, ejector rod 430, seed cleaning brush 500, baffle assembly 600, sliding baffle 610, adjustment hole 611, adjustment pin plate 620, lock 630, seed storage box 700, sorghum sudanense seeds 710, shallow burial assembly 800, side plate 810, hinge rod 820, return spring 830, shallow burial disc 840. Specific embodiments

[0027] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other. The following will further describe the technical solutions of the present invention with reference to the drawings of the embodiments of the present invention. The present invention is not limited to the following specific embodiments.

[0028] It should be understood that the same or similar reference numerals in the drawings of the embodiments correspond to the same or similar components. In the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "front", "rear", "left", "right", "top", "bottom", etc. indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only for illustrative purposes and cannot be understood as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0029] Please refer to Figures 1 to 8 , a sowing device for sorghum sudanense planting includes a set of oppositely arranged seed metering main boards 100. The set of seed metering main boards are detachably connected, such as by stud nuts. A seed dropping cavity is reserved between the set of seed metering main boards 100. An inclined chute 110 is arranged between the seed metering main boards 100. The inclination angle of the inclined chute 110 can be freely set. A seed dropping pipe 120 is arranged below the inclined chute 110. The seed dropping pipe 120 is in a flared shape, and the flared side is arranged upwards. An arc-shaped material limiting plate 130 is also arranged between the seed metering main boards 100.

[0030] Seed cylinder 200, see Figure 6 and Figure 7 One end of the seeding cylinder 200 passes through the seeding main board 100 to the seeding cavity, and the seeding cylinder 200 is located on the inner side of the arc-shaped limiting plate 130. A gap is reserved between the arc-shaped limiting plate 130 and the outer wall of the seeding cylinder 200 for limiting the movement of the highdan grass seeds 710. Furthermore, the seeding cylinder 200 and the inclined slide 110 are arranged close to each other, and the highdan grass seeds 710 cannot fall from between the inclined slide 110 and the seeding cylinder 200. The seeding main board 100, the inclined slide 110, the seeding cylinder 200 and the arc-shaped limiting plate 130 together form a triangular seed storage area, so that the highdan grass seeds 710 are temporarily stored in the triangular seed storage area to prevent the seeds from falling to the ground.

[0031] The outer wall of the seeding cylinder 200 is provided with a rolling bearing or a ring tile, and the inner wall of the seeding cylinder 200 is provided with a rolling bearing or a ring tile. An annular through hole is opened on the side of the seeding main board 100, and one end of the seeding cylinder 200 is passed through the annular through hole into the seeding cavity, and the rolling bearing is fixed on the seeding main board 100. At the same time, the inner cavity of the seeding cylinder 200 is in a closed state.

[0032] Along the radial direction of the seed cylinder 200, at least one circle of seed storage countersunk holes 210 is opened through its surface (the countersunk holes are a kind of stepped holes, that is, the aperture of the seed storage countersunk holes 210 close to the outer wall of the seed cylinder 200 is larger, and the aperture of this end is larger than the average diameter of sorghum, and the seeds of sorghum will enter the seed storage countersunk holes 210, and only one sorghum seed 710 can be stored, while the aperture of the seed storage countersunk holes 210 close to the inner wall of the seed cylinder 200 is smaller, and the aperture of this end is smaller than the average diameter of sorghum, preventing the seeds of sorghum from directly entering the inner cavity of the seed cylinder 200), therefore, the seeds of sorghum will be stored in the seed storage countersunk holes 210, thereby achieving the purpose of transporting a single sorghum seed 710.

[0033] See also Figure 1 and Figure 5 , a transmission assembly 300, wherein the transmission assembly 300 is arranged on one side of the seeding main board 100, the transmission assembly 300 is connected to the seeding cylinder 200, and drives the seeding cylinder 200 to rotate, and the transmission assembly 300 is connected to an existing device to realize transmission, such as, the transmission assembly 300 is connected to the furrowing plow in front for transmission, or, the transmission assembly 300 is directly connected to a tractor, etc.

[0034] For some of the sorghum sudanense seeds 710, the diameter is greater than the average diameter of sorghum sudanense, or for some of the sorghum sudanense seeds, the diameter is less than the average diameter of sorghum sudanense. When the sorghum sudanense seeds 710 enter the seed storage sink 210, they will get stuck in the seed storage sink 210, resulting in the sorghum sudanense seeds 710 being unable to fall from the seed storage sink 210. This will occupy the space of the seed storage sink 210, causing the seed storage sink 210 to be unable to store the remaining sorghum sudanense seeds 710, and there will be a phenomenon of missed seeding. Therefore, a seed pushing assembly 400 is further included. The seed pushing assembly 400 is located between a group of the seed discharging main boards 100 and is arranged inside the seed discharging cylinder 200. The seed pushing assembly 400 is connected to the transmission assembly 300, and the seed pushing assembly 400 rotates synchronously with the seed discharging cylinder 200, and is used to push the remaining seeds in the seed storage sink 210 into the seed discharging cylinder 200. When the seed discharging cylinder 200 rotates, the seed pushing assembly 400 rotates synchronously. When the seed storage sink 210 of the seed discharging cylinder 200 is in the directly downward position, since the seed storage sink 210 is provided in a penetrating manner, one end of the seed pushing assembly 400 will extend into the seed storage sink 210, and push the sorghum sudanense seeds 710 stuck in the seed storage sink 210 into the lower seed discharging cylinder 200, ensuring that the seed storage sink 210 can continue to store seeds next time. The pushing method of the seed pushing assembly 400 can include a rotary rolling pushing method, or a multi-link rotary pushing method, or a pushing cylinder up-and-down pushing method, as long as the sorghum sudanense seeds 710 stuck in the seed storage sink 210 can be pushed into the lower seed discharging cylinder 200.

[0035] A seed storage box 700 is snap-connected above the seed discharging main board 100. Four connecting rods are provided on the seed storage box 700, and four interfaces are provided on the seed discharging main board 100. The connecting rods are snap-connected in the interfaces to fix the seed storage box 700 on the seed discharging main board 100. A seed dropping port is provided below the seed storage box 700. A switch valve is provided on the seed storage box 700 (the switch valve is a prior art and will not be described in detail here). The seed dropping port is controlled to be opened and closed regularly through the switch valve for regular seeding. For example, every 1 minute, the switch valve is opened, and the seed dropping port drops seeds. After 15 seconds of seeding time, the switch valve closes, and only a certain amount of seeds are pre-stored in the triangular seed storage area to prevent the seeds in the triangular seed storage area from overflowing from the seed discharging main board 100.

[0036] A shallow burying assembly 800 is snap-connected to the lower end of the seed dropping pipe 120. The shallow burying assembly 800 is used to shallowly bury the seeds dropped by the seed dropping pipe 120. For the dropped sorghum sudanense seeds 710, in order to avoid direct contact and mixing of the seeds with fertilizers during subsequent operations, and to avoid the phenomenon of "burning seeds".

[0037] Specifically, refer to Figure 8 , several sorghum sudanense seeds 710 (hereinafter all replaced by seeds) are stored in the seed storage box 700. A seed dropping opening is provided below the seed storage box 700. The seed dropping opening is controlled by a timing control switch to control the opening and closing of the seed dropping opening for timed seed dropping. The seeds dropping from the seed dropping opening will enter the seed dropping cavity reserved between a group of the seed discharging main boards 100 and be temporarily stored in the triangular seed storage area jointly formed by the seed discharging main board 100, the inclined chute 110, the seed discharging cylinder 200 and the arc-shaped material limiting plate 130, so that the sorghum sudanense seeds 710 are temporarily stored in this triangular seed storage area. The inclined chute 110 is arranged along the inclined direction. When the seeds fall on the inclined chute 110, they will roll on the surface of the seed discharging cylinder 200 and fill into the seed storage sink 210. As the transmission component 300 rotates, the seed discharging cylinder 200 rotates clockwise, driving the seeds in the seed storage sink 210 to rotate. The seeds will enter the gap between the arc-shaped material limiting plate 130 and the outer wall of the seed discharging cylinder 200 (this gap is adjusted according to the diameter of the seeds. If the seeds are larger, the gap is adjusted wider and can limit the seeds, and vice versa), which will limit the seeds to prevent the seeds from falling in advance. When the seeds flow out of this gap by rotation (that is, rotate to the 6 o'clock direction), the opening of the seed storage sink 210 faces downward, and the single seeds in the seed storage sink 210 will fall into the lower seed dropping pipe 120 for single-seed dropping, and the seed discharging is cycled in turn; if the seeds are stuck in the seed storage sink 210, since the seed pushing component 400 is connected to the transmission component 300 and the seed pushing component 400 rotates synchronously with the seed discharging cylinder 200, when each seed storage sink 210 rotates to the 6 o'clock direction, the end of the seed pushing component 400 can just extend into the seed storage sink 210 to push the seeds stuck in the seed storage sink 210 into the lower seed dropping pipe 120 for single-seed dropping. The fallen seeds pass through the shallow burying component 800 to scrape a little soil on both sides of the plow furrow to shallowly bury the seeds.

[0038] This seeding device for sorghum sudanense planting has a simple structure, is convenient for maintenance, has a low maintenance cost, and is suitable for small and medium-sized farmers with scattered land. At the same time, the seed discharging cylinder 200 can realize single-seed uniform seeding, and the sorghum sudanense seeds 710 falling in the soil are evenly distributed, avoiding seed replanting and realizing reasonable close planting of crops. Moreover, through the seed pushing component 400, the seeds stuck in the seed storage sink 210 can be pushed out, avoiding the seeds blocking the seed storage sink 210 and preventing the phenomenon of missed seeding during the seeding process.

[0039] Further, refer to Figure 5The transmission assembly 300 includes a bearing seat body 310, a transmission main shaft 320, a star connecting rod 330 and a transmission gear 340. The bearing seat body 310 is installed on one side of the seeding main board 100. The bearing seat body 310 is provided with a bearing. The transmission main shaft 320 is coaxially arranged with the seeding cylinder 200 to ensure that the transmission main shaft 320 and the seeding cylinder 200 rotate coaxially. One end of the transmission main shaft 320 is installed on the bearing seat body 310. Specifically, the transmission main shaft 320 One end is installed in the bearing of the bearing seat body 310, the transmission main shaft 320 rotates synchronously with the bearing seat body 310, the star-shaped connecting rod 330 is installed at the other end of the transmission main shaft 320, and the end of the star-shaped connecting rod 330 is connected to the seed cylinder 200. Specifically, the star-shaped connecting rod 330 is provided with a plurality of star-shaped connecting rods 330, and each of the star-shaped connecting rods 330 simultaneously connects the transmission main shaft 320 and the seed cylinder 200 to ensure that the transmission main shaft 320 and the seed cylinder 200 are relatively fixedly arranged.

[0040] Specifically, the transmission gear 340 is connected to an existing device via a chain to achieve transmission, such as: the transmission gear 340 is connected to the furrowing plow in front via a chain, or the transmission assembly 300 is directly connected to a tractor.

[0041] Further, see Figure 5 In order to ensure that the transmission main shaft 320 and the seed cylinder 200 rotate coaxially, the transmission assembly 300 also includes a calibration pin 350, and the calibration pin 350 passes through the seed cylinder 200 and is detachably connected to the star-shaped connecting rod 330. By adjusting the calibration pin 350, the transmission main shaft 320 and the seed cylinder 200 can be rotated on the same axis without rotation offset, thereby extending the service life.

[0042] For further description, see Figure 6 and Figure 8, the seed pushing component includes a transmission countershaft 410 and at least one set of transmission sleeves 420. The transmission countershaft 410 is in transmission connection with the transmission main shaft 320. The transmission countershaft 410 is located directly above the seed dropping tube 120, that is, the transmission countershaft 410 is arranged on one side close to the seed dropping tube 120. The transmission sleeve 420 is sleeved coaxially with the transmission countershaft 410. A plurality of ejector rods 430 are uniformly arranged on the outer surface of the transmission sleeve 420. Along the vertical direction, the ejector rods 430 are arranged corresponding to the seed storage sinkholes 210. The ejector rods 430 are pushed into the seed storage sinkholes 210 directly below the transmission sleeve 420. That is, when one of the seed storage sinkholes 210 is at the 6 o'clock direction, at this time, the end of one of the ejector rods 430 just extends into the seed storage sinkhole 210, and the seed storage sinkhole 210 behind this seed storage sinkhole 210 will also cooperate with the next ejector rod 430 at the 6 o'clock direction, thereby pushing out the seeds stuck in the seed storage sinkhole 210. The length of the ejector rod 430 and the distance between the ends of two adjacent ejector rods 430 can be reasonably set according to the distance between two adjacent seed storage sinkholes 210 to make them match. This means can be realized by existing methods and will not be elaborated here.

[0043] Furthermore, referring to Figure 5 , the transmission component 300 further includes a first pulley 360, a second pulley 370 and a transmission belt 380. The first pulley 360 is sleeved on the transmission main shaft and is located on the side far from the star-shaped connecting rod 330. At the same time, it is located on the side close to the seed metering main board 100 to avoid movement interference between the transmission belt 380 and the star-shaped connecting rod 330. The second pulley 370 is sleeved on one end of the transmission countershaft 410. The first pulley 360 and the second pulley 370 are in transmission connection through the transmission belt 380.

[0044] Specifically, when the transmission main shaft 320 rotates, it drives the first pulley 360 to rotate. Through the transmission belt 380, it drives the second pulley 370 to rotate again. Through the second pulley 370, it drives the transmission countershaft 410 to rotate, thereby realizing the synchronous rotation of the transmission countershaft 410 and the transmission main shaft 320. Through the rotation of the transmission countershaft 410, it drives the ejector rods 430 on the transmission sleeve 420 to rotate. That is, when the seed metering cylinder 200 is sowing seeds, the ejector rods 430 will rotate synchronously, avoiding the phenomenon of seed jamming in the seed storage sinkholes 210 and preventing the phenomenon of missed sowing.

[0045] Preferably, referring to Figure 6, in order to avoid the surface of the seed metering cylinder 200 having redundant seeds remaining thereon other than the seed storage sinkhole 210. For example, as the seed metering cylinder 200 rolls, some small seeds rolling on the surface of the seed metering cylinder 200 may get stuck between the seed metering cylinder 200 and the arc-shaped material limiting plate 130. If a relatively large number of small seeds are stuck between the seed metering cylinder 200 and the arc-shaped material limiting plate 130, it will produce braking on the seed metering cylinder 200. Therefore, the sowing device for sorghum sudanense planting further includes a seed cleaning brush 500. The seed cleaning brush 500 is arranged between a group of the seed metering main plates 100 and is located directly above the seed metering cylinder 200. The seed cleaning brush 500 remains stationary. When the seed metering cylinder 200 rotates, it will block and clean the small seeds on the surface of the seed metering cylinder 200 to prevent the small seeds from entering the gap between the seed metering cylinder 200 and the arc-shaped material limiting plate 130.

[0046] Furthermore, the seed cleaning brush 500 includes a brush plate and brush heads. The brush plate is fixedly arranged on the seed metering main plate 100 and is located directly above the seed metering cylinder 200. The brush heads are detachably installed on the brush plate. A number of hard dense filaments are arranged on the brush heads. The hard dense filaments face the inclined chute 110 side. A gap is left between the hard dense filaments and the seed metering cylinder 200 to avoid the hard dense filaments directly contacting the seed metering cylinder 200 and damaging the brush heads. The brush heads are used to block and clean the seeds.

[0047] Furthermore, referring to Figure 6 , for a furrow with a relatively wide row spacing, two rows of sorghum sudanense seeds 710 need to be planted. Then, the seed storage sinkholes 210 are provided with two circles to meet the relatively wide furrow and plant two rows of sorghum sudanense seeds 710. And they are arranged in a staggered manner in sequence, so that the seeds are evenly planted in the furrow, meeting the purpose of reasonable close planting.

[0048] Specifically, referring to Figure 6 , when the seed storage sinkholes 210 are provided with two circles, two groups of the transmission sleeves 420 are arranged on the transmission secondary shaft 410. The ejecting rods on the two groups of the transmission sleeves 420 can eject the seeds in the seed storage sinkholes 210.

[0049] Furthermore, referring to Figure 7, the cross-section of the seed storage sinkhole 210 is a regular hexagon. According to the seed dropping experiment research, when the seed pushing component 400 is not set, the seed dropping experiment research is carried out with the circular seed storage sinkhole 210 and the regular hexagon seed storage sinkhole 210. The volume of the circular seed storage sinkhole 210 is the same as that of the regular hexagon seed storage sinkhole 210. Taking 1 kg of seeds for the experiment, the circular seed storage sinkholes 210 are arranged on the surface of the seed discharging cylinder 200, and there are 100 seed storage sinkholes 210. When using the circular seed storage sinkholes 210 to conduct 1000 times of seed dropping experiment research, when 1 kg of seeds have completely fallen, in the 1000 times of seed dropping experiment research, the seed jamming rate of the circular seed storage sinkholes 210 is 14.3%, that is, 143 times are in the seed jamming state in the 1000 times of seed dropping experiment research; when using the regular hexagon seed storage sinkholes 210 to conduct 1000 times of seed dropping experiment research, the seed jamming rate of the circular seed storage sinkholes 210 is 0.5%, that is, 5 times are in the seed jamming state in 100 times of seed dropping experiment research. The seed jamming rate of the regular hexagon seed storage sinkholes 210 is about 13.8% lower than that of the circular seed storage sinkholes 210. Therefore, the regular hexagon seed storage sinkholes 210 can greatly reduce seed jamming and avoid seed leakage in the furrow.

[0050] Furthermore, referring to Figure 2 and Figure 4 , the sowing device for sorghum sudanense planting further includes a baffle component 600. The baffle component 600 includes a sliding baffle 610, an adjusting pin plate 620 and a lock 630. Through holes are provided on the sliding baffle 610. The sliding baffle 610 passes through the through holes of the seed discharging main board 100 and fits with the outer surface of the seed discharging cylinder 200. The sliding baffle 610 can move relative to the seed discharging cylinder 200. The cross-section of the sliding baffle 610 is the same as that of the through hole, that is, the sliding baffle 610 can just pass through the through hole. The sliding baffle 610 can enclose a circle of the seed storage sinkholes 210. An adjusting hole 611 is opened on the sliding baffle 610. The adjusting pin plate 620 passes through the adjusting hole 611 and is attached to the seed discharging main board 100. The lock 630 passes through the adjusting pin plate 620 and is fixed on the seed discharging main board 100. Specifically, two rows of adjusting holes 611 are opened on the sliding baffle 610, and the seed storage sinkholes 210 are closed through the adjusting holes 611 to adapt to the single-row planting mode (planting one row of seeds) and the double-row planting mode (planting two rows of seeds).

[0051] Specifically, after the plowshare opens a furrow, if the width of the furrow is only suitable for planting a single row of seeds, by adjusting the sliding baffle 610, the sliding baffle 610 slides inward, and the sliding baffle 610 seals the storage seed sinkholes 210 in a circle, so that only one circle of the storage seed sinkholes 210 of the seed metering cylinder 200 is exposed outside and can store seeds. Then, the adjusting pin plate 620 passes through the corresponding adjusting hole 611, and the adjusting pin plate 620 is fixed to one side of the main seed metering board 100 through the locking buckle 630, thereby fixing the sliding baffle 610 and preventing the sliding baffle 610 from shifting and sliding. When the seed metering cylinder 200 rotates, after the storage seed sinkholes 210 of the seed metering cylinder 200 store seeds, only a single row of seeds can be planted through the storage seed sinkholes 210 to adapt to the single-row planting mode. Similarly, after the plowshare opens a furrow, if the width of the furrow is suitable for planting two rows of seeds, the locking buckle 630 is removed, the adjusting pin plate 620 is pulled out from the adjusting hole 611, the sliding baffle 610 is pulled outwards, so that two circles of storage seed sinkholes 210 on the seed metering cylinder 200 are all exposed, and the adjusting pin plate 620 passes through the corresponding adjusting hole 611 and is locked through the locking buckle 630. When the seed metering cylinder 200 rotates, after the storage seed sinkholes 210 of the seed metering cylinder 200 store seeds, two rows of seeds can be planted through the storage seed sinkholes 210 to adapt to the double-row planting mode.

[0052] Further, the shallow burial assembly 800 includes a pair of side plates 810, a hinge rod 820, a return spring 830 and a pair of shallow burial discs 840. The pair of side plates 810 are installed on the side wall of the bottom end of the seed dropping pipe 120. The hinge rod 820 is arranged between the pair of side plates 810 and is hinged to the side plates 810. The return spring 830 is located below the hinge rod 820. One end of the return spring 830 is connected to the side plate 810, and the other end of the return spring 830 is connected to the hinge rod 820. The pair of shallow burial discs 840 are arranged on both sides of the hinge rod 820. The pair of shallow burial discs 840 are arranged obliquely relative to each other, and in the vertical direction, the upper regions of the pair of shallow burial discs 840 are close to each other, and the lower regions of the pair of shallow burial discs 840 are far from each other. When the shallow burial discs 840 rotate, as the shallow burial discs 840 move forward, the lower regions of the pair of shallow burial discs 840 will wrap part of the soil and backfill it into the furrow. When the return spring 830 is in a non-stretched state, the hinge rod 820 is in a horizontal position. When there are protrusions in the furrow, such as backfilled soil, the shallow burial discs 840 rotate upwards around the hinge rod 820, and the return spring 830 is in a stretched state. When there are no protrusions in the furrow, the return spring 830 rebounds, so that the hinge rod 820 and the shallow burial discs 840 are in the initial horizontal state. This enables the shallow burial discs 840 to always keep a small amount of soil for shallow burial of the seeds.

[0053] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all implementation manners here. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A sowing device for planting sorghum, characterized in that: include A group of seeding main boards are arranged opposite to each other, a seeding cavity is reserved between the seeding main boards, an inclined slide is arranged between the seeding main boards, a seeding tube is arranged below the inclined slide, and an arc-shaped material limiting plate is also arranged between the seeding main boards, and the arc-shaped material limiting plate is located on a side away from the inclined slide; A seeding cylinder, one end of which passes through the seeding main plate into the seeding cavity, the seeding cylinder is located inside the arc-shaped limiting plate, and along the radial direction of the seeding cylinder, at least one circle of seed storage countersunk holes is opened on its surface; A transmission assembly, which is arranged on one side of the seeding main board, is connected to the seeding cylinder, and drives the seeding cylinder to rotate; A seed pushing assembly, the seed pushing assembly is located between a group of the seed discharging main boards and is arranged in the seed discharging barrel. The seed pushing assembly is connected to the transmission assembly, and the seed pushing assembly rotates synchronously with the seed discharging barrel to push the seeds remaining in the seed storage counterbore into the seed discharging tube; as well as A seed storage box is clamped on the top of the seeding main board and a shallow burying component is clamped on the lower end of the seed placing tube. The shallow burying component is used for shallowly burying the seeds dropped from the seed placing tube.

2. The sowing device for planting sorghum as claimed in claim 1, characterized in that: The transmission assembly includes a bearing seat body, a transmission main shaft, a star-shaped connecting rod and a transmission gear. The bearing seat body is installed on one side of the seeding main board. The transmission main shaft is coaxially arranged with the seeding barrel. One end of the transmission main shaft is installed on the bearing seat body, and the star-shaped connecting rod is installed on the other end of the transmission main shaft, and the end of the star-shaped connecting rod is connected to the seeding barrel.

3. The sowing device for planting sorghum as claimed in claim 2, characterized in that: The transmission assembly also includes a calibration pin, which passes through the seed cylinder and is detachably connected to the star-shaped connecting rod.

4. The sowing device for planting sorghum as claimed in claim 2, characterized in that: The seed pushing assembly includes a transmission secondary shaft and at least one group of transmission sleeves. The transmission secondary shaft is connected to the transmission main shaft in transmission. The transmission secondary shaft is located directly above the lower seed tube. The transmission sleeve is coaxially sleeved with the transmission secondary shaft. A plurality of ejector rods are evenly arranged on the outer surface of the transmission sleeve. In the vertical direction, the ejector rods are pushed into the seed storage countersunk hole directly below the transmission sleeve.

5. The sowing device for planting sorghum as claimed in claim 4, characterized in that: The transmission assembly also includes a first pulley, a second pulley and a transmission belt. The first pulley is sleeved on the transmission main shaft and is located on a side away from the star-shaped connecting rod. The second pulley is sleeved on one end of the transmission secondary shaft. The first pulley and the second pulley are connected by the transmission belt.

6. The sowing device for planting sorghum as claimed in claim 1, characterized in that: The sowing device for planting sorghum also includes a seed cleaning brush, which is arranged between a group of seeding main boards and is located directly above the seeding cylinder.

7. The sowing device for planting sorghum as claimed in claim 1, characterized in that: The seed storage countersunk holes are provided with two circles, and are opened alternately in sequence.

8. The sowing device for planting sorghum as claimed in claim 7, characterized in that: The cross section of the seed countersunk hole is a regular hexagon.

9. The sowing device for planting sorghum as claimed in claim 7, characterized in that: The sowing device for planting highdan grass also includes a baffle assembly, which includes a sliding baffle, an adjusting pin plate and a lock. The sliding baffle passes through the seeding main board and fits against the outer surface of the seeding cylinder. The sliding baffle can close a circle of the seed storage countersunk holes. An adjusting hole is provided on the sliding baffle. The adjusting pin plate passes through the adjusting hole and fits against the seeding main board. The lock passes through the adjusting pin plate and is fixed to the seeding main board.

10. The sowing device for planting sorghum as claimed in claim 1, characterized in that: The shallow buried component includes a pair of side plates, a hinged rod, a return spring and a pair of shallow buried discs. The pair of side plates are installed on the side walls of the bottom end of the lower seed tube. The hinged rod is arranged between the pair of side plates and is hinged to the side plates. The return spring is located below the hinged rod. One end of the return spring is connected to the side plate, and the other end of the return spring is connected to the hinged rod. The pair of shallow buried discs are arranged on both sides of the hinged rod, and the pair of shallow buried discs are arranged relatively inclined.

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