Sorghum black rice seeding device

Abstract

The utility model relates to the technical field of seeding devices, and discloses a sorghum black rice seeding device which comprises a frame body as well as a ditching mechanism, a seeding mechanism, a material covering mechanism and a soil covering mechanism which are sequentially mounted on the frame body from front to back, the material covering mechanism comprises a material storage groove fixedly installed on the frame body, an auger arranged in the material storage groove in a penetrating mode, a motor installed on the frame body, a first chain wheel set, a second chain wheel set and a control assembly, the control assembly comprises a rack slidably installed on the inner side wall of the control box, a first gear installed at the head end of the auger and engaged with the rack, and a control gear synchronously rotating with the second chain wheel set. According to the structure, discharging of the material covering mechanism is controlled by controlling rotation of the gear in a matched mode, it is further guaranteed that covering materials of the material covering mechanism are accurately output to cover the seeds, the seeds are wrapped to the maximum degree, the incidence rate of the seeds is increased, and the success rate of the sorghum black rice is further increased.

Description

Technical Field

[0001] This utility model relates to the field of sowing device technology, specifically a sorghum and black rice sowing device. Background Technology

[0002] Sorghum black rice is an edible fungus, produced by the spore masses of diseased spikelets generated by the parasitic fungus *Ustilago maydis* on sorghum spikes.

[0003] The investment in technology and basic equipment for sorghum black rice is very low, but its nutritional value has brought market demand. Since the natural disease rate of sorghum smut in the field is extremely low, it cannot meet market demand. Therefore, artificial inoculation to prevent disease is currently the main method widely used in the market to obtain smut.

[0004] The conventional sowing method in existing technologies involves sowing 3-4 seeds per hole after furrow preparation, followed by covering the seeds with approximately 100 grams of substrate and then compacting the soil. During the sowing stage, existing technologies typically employ funnel or jet sowing methods. Seeds are dispensed into the furrow through the funnel's holes or the spray gun's nozzle. However, this method cannot guarantee the number of seeds sown. Funnel sowing relies on gravity for automatic seed dispensing, but this method lacks control over the frequency and speed of dispensing, making it less practical. Spray gun sowing uses a powerful jet to propel seeds from the nozzle, which can easily damage the seeds' integrity, affecting seed quality. Consequently, damaged seeds can negatively impact the success rate of sorghum seed sowing. Utility Model Content

[0005] In view of the problems that existing technologies cannot control the rate and quantity of seed production and cannot guarantee the integrity of the output seeds, this utility model provides a sorghum black rice sowing device.

[0006] This utility model provides a sorghum black rice sowing device, including a frame and a furrowing mechanism, a sowing mechanism, a covering mechanism and a soil covering mechanism installed sequentially from front to back on the frame. The covering mechanism and the sowing mechanism discharge materials through a main discharge channel.

[0007] The material covering mechanism includes: a material storage tank fixedly installed with the frame, an auger passing through the material storage tank, a motor installed on the frame, a first sprocket set coaxially installed with the output shaft of the motor, a second sprocket set chain-driven with the first sprocket set, and a control component chain-driven with the second sprocket set for controlling the rotation of the auger to discharge material.

[0008] The control components include: a control box installed on one side of the storage tank, a rack slidably installed on the inner side wall of the control box, a first gear installed at the head end of the auger and meshing with the rack, and a control gear that rotates synchronously with the second sprocket group through the first gear group. The tail end of the auger passes through the covering material discharge channel, which is connected to the main discharge channel.

[0009] Furthermore, the control gear includes a hollow tooth portion and a gear tooth portion. When the control gear rotates to the point where the hollow tooth portion is directly opposite the rack, the seeding mechanism dispenses seeds. When the control gear rotates to the point where the gear tooth portion meshes with the rack, the rack drives the first gear to rotate, controlling the auger to agitate and discharge materials.

[0010] Furthermore, the seeding mechanism includes: a third sprocket group that is driven by the sprockets of the first sprocket group, a seed metering disc that is driven by the sprockets of the third sprocket group on the same axis, a seed conveying half-shell disposed on one side of the seed metering disc, and an air suction half-shell disposed on the other side of the seed metering disc.

[0011] The seed conveying half-shell is provided with a seed conveying inlet communicating with the outside and a seed discharge channel communicating with the main discharge channel. The seed metering tray and the inner wall of the seed conveying half-shell form a seed chamber.

[0012] Furthermore, a negative pressure fan is provided on the air suction half-shell, which draws the seed chamber into a negative pressure state; the seed dispensing tray is provided with a number of sets of conical holes for negative pressure adsorption of seeds, and the inner wall of the air suction half-shell is provided with air suction channels corresponding to the number of sets of conical holes, and the air suction channels are connected to the air intake of the negative pressure fan.

[0013] Furthermore, an L-shaped felt plate is installed on the inner wall of the seed conveying half-shell, which is directly opposite the seed discharge channel; the inner side of the L-shaped felt plate is under negative pressure and the outer side is under positive pressure; there is a seed discharge gap between the L-shaped felt plate and the seed metering tray for the seeds to pass through.

[0014] Furthermore, each set of conical holes is provided with 1 to 10 holes.

[0015] Furthermore, the first sprocket assembly includes: a first driving sprocket coaxially mounted with the output shaft of the first motor, and a first driven sprocket that rotates synchronously with the first driving sprocket via a first transmission chain. The second sprocket assembly and the third transmission sprocket assembly are both coaxially mounted with the first driven sprocket.

[0016] Furthermore, the soil covering mechanism includes: a first support rod fixedly installed with the frame, symmetrical soil covering devices installed on both sides of the first support rod, and a compaction wheel installed on the rear side of the first support rod for compacting the ground; the two soil covering devices are arranged on both sides of the frame, and the compaction wheel is arranged at the tail end of the frame.

[0017] Furthermore, the trenching mechanism includes: a fixed frame installed at the first end of the frame body and a trenching wheel assembly installed on the fixed frame by bolts, wherein the fixed frame is provided with a plurality of positioning holes for adjusting the installation position of the trenching wheel assembly.

[0018] Furthermore, the trenching wheel assembly includes a second support rod mounted to the fixed frame and two trenching wheels mounted opposite each other at the bottom end of the second support rod, with the ends of the two trenching wheels close together near the ground.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. This utility model patent utilizes the movement of a ditching mechanism to create seed pits in the soil for sowing. A motor-driven sowing mechanism outputs seeds into the pits, simultaneously driving the first and second sprocket sets. A first gear set drives a control gear to rotate synchronously. The rotation of the control gear allows the covering mechanism to output material after the seeds are sown, ensuring the material covers the seeds. This structure, through the control of gear rotation and the material output of the covering mechanism, further ensures precise material output to cover the seeds, maximizing seed coverage, reducing disease incidence, and further improving the success rate of sorghum black rice cultivation.

[0021] 2. This utility model patent describes a method for conveying seeds from the seed inlet to the seed chamber. A negative pressure fan is activated, creating a negative pressure environment within the seed chamber, suspending the seeds. The airflow propels the seeds to the conical holes on the seed metering disc. A motor drives the first and second sprocket sets to rotate, which in turn rotates the seed metering disc, causing the seeds adsorbed in the conical holes to rotate as well. When the conical holes pass through the L-shaped felt plate, the seeds automatically fall into the seed output channel for dispensing because the inner side of the L-shaped felt plate is under negative pressure and the outer side is under positive pressure. This structure ensures a sufficient number of seeds entering the seed pit, preventing dense accumulation and facilitating subsequent covering operations. Furthermore, the negative pressure adsorption method prevents seed damage due to compression, further guaranteeing the success rate of sorghum seed dispensing.

[0022] It should be understood that the description in this utility model description section is not intended to limit the key or essential features of the embodiments of this utility model, nor is it intended to restrict the scope of this utility model. Other features of this utility model will become readily apparent from the following description. Attached Figure Description

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0024] Figure 1 This is a structural diagram of the sorghum and black rice planting device.

[0025] Figure 2 This is a diagram of the overall structure of the seeding mechanism.

[0026] Figure 3 This is a diagram of the internal structure of the seeding mechanism.

[0027] Figure 4 This is a first-person exploded view of some parts of the seeding mechanism.

[0028] Figure 5 This is a second-view exploded view of some parts of the seeding mechanism.

[0029] Figure 6 This is a cross-sectional structural diagram of some parts of the seeding mechanism.

[0030] Figure 7 This is a first-person view structural diagram of the covering mechanism.

[0031] Figure 8 This is a second-view structural diagram of the covering mechanism.

[0032] Figure 9 for Figure 8 Enlarged structural diagram at point A in the middle.

[0033] Figure 10 This is a structural diagram of the soil covering mechanism.

[0034] Figure 11 This is a structural diagram of the trenching mechanism.

[0035] The diagram labels are as follows: 1. Frame; 2. Trenching mechanism; 21. Fixing frame; 22. Trenching wheel assembly; 221. Second support rod; 222. Trenching wheel; 23. Positioning hole;

[0036] 3. Seeding mechanism; 31. Third sprocket assembly; 311. Third driving sprocket; 312. Third transmission chain; 313. Third driven sprocket; 32. Seed metering disc; 321. Conical hole; 322. Disturbance column; 341. Air suction channel; 33. Seed conveying half-shell; 331. Seed inlet; 332. Seed discharge channel; 333. Seed chamber; 334. L-shaped felt plate; 335. Seed discharge gap; 34. Air suction half-shell; 35. Third gear assembly; 351. Third large gear; 352. Third small gear;

[0037] 4. Covering mechanism; 41. Storage tank; 42. Screw conveyor; 43. Motor; 44. First sprocket assembly; 441. First drive sprocket; 442. First transmission chain; 443. First driven sprocket; 45. Second sprocket assembly; 451. Second drive sprocket; 452. Second transmission chain; 453. Second driven sprocket; 46. Control assembly; 461. Control box; 462. Rack; 463. First gear; 464. Control gear; 4641. Hollow tooth section; 4642. Gear tooth section; 465. First gear set; 4651. Second gear; 4652. Third gear; 47. Covering material discharge channel; 48. Second gear set; 481. Drive gear; 482. Second large gear; 483. Second small gear;

[0038] 5. Soil covering mechanism; 51. First support rod; 52. Soil covering device; 53. Compactor wheel; 6. Main discharge channel; 61. Guide wheel. Detailed Implementation

[0039] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0040] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly set on the other component; when a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to the other component.

[0041] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0042] Please refer to Figures 1 to 11This utility model provides a sorghum black rice sowing device, including a frame 1 and a furrowing mechanism 2, a sowing mechanism 3, a covering mechanism 4 and a soil covering mechanism 5 installed sequentially from front to back on the frame 1. The covering mechanism 4 and the sowing mechanism 3 discharge materials through a main discharge channel 6.

[0043] The covering mechanism 4 includes: a storage tank 41 fixedly installed with the frame 1, an auger 42 passing through the storage tank 41, a motor 43 installed on the frame 1, a first sprocket set 44 coaxially installed with the output shaft of the motor 43, a second sprocket set 45 chain-driven with the first sprocket set 44, and a control component 46 chain-driven with the second sprocket set 45 for controlling the rotation of the auger 42 to discharge material.

[0044] The control component 46 includes: a control box 461 installed on one side of the storage tank 41, a rack 462 slidably installed on the inner wall of the control box 461, a first gear 463 installed at the head end of the auger 42 and meshing with the rack 462, and a control gear 464 that rotates synchronously with the second sprocket set 45 through the first gear set 465. The tail end of the auger 42 passes through the covering material discharge channel 47, which is connected to the main discharge channel 6.

[0045] The control gear 464 includes a hollow tooth portion 4641 and a gear tooth portion 4642. When the control gear 464 rotates to the point where the hollow tooth portion 4641 is directly opposite the rack 462, the seeding mechanism 3 dispenses seeds. When the control gear 464 rotates to the point where the gear tooth portion 4642 meshes with the rack 462, the rack 462 drives the first gear 463 to rotate, controlling the auger 42 to stir and discharge the material.

[0046] In this embodiment, the ditching mechanism 2 opens seed pits in the land for sowing. The sowing mechanism 3 is driven by the motor 43 to output seeds into the seed pits. At the same time, the first sprocket group 44 and the second sprocket group 45 are driven to move. The first gear group 465 drives the control gear 464 to rotate synchronously. The rotation of the control gear 464 enables the covering mechanism 4 to discharge material after the sowing mechanism 3 outputs seeds, so that the covering material can be output onto the seeds and cover them.

[0047] When the sowing mechanism 3 delivers seeds, the hollow tooth 4641 of the control gear 464 aligns with the rack 462. When the gear tooth 4642 of the control gear 464 meshes with the rack 462, the rack 462 slides on the inner wall of the control box 461 under the meshing action, driving the first gear 463 to rotate accordingly. The auger 42 rotates accordingly to stir and discharge the covering material in the storage tank 41, so that the covering material is output to the seed pit through the main discharge channel 6 and covers the seeds. As the device moves forward continuously, the soil covering mechanism 5 can cover and compact the seed pit after sowing. The rotation of the hollow tooth 4641 and the gear tooth 4642 controls the discharge of the covering mechanism 4, further ensuring that the covering material of the covering mechanism 4 can be accurately output and cover the seeds, covering the seeds to the greatest extent, reducing the incidence of seed diseases, and further improving the success rate of sorghum black rice.

[0048] In this embodiment, the first sprocket assembly 44 includes: a first drive sprocket 441 coaxially mounted with the output shaft of the first motor 43, and a first driven sprocket 443 that rotates synchronously with the first drive sprocket 441 via a first transmission chain 442; the second sprocket assembly 45 includes: a second drive sprocket 451 coaxially mounted with the first driven sprocket 443, and a second driven sprocket 453 that rotates synchronously with the second drive sprocket 451 via a second transmission chain 452.

[0049] The first gear set 465 includes: a second gear 4651 coaxially mounted with the second driven sprocket 453, and a third gear 4652 meshing and rotating with the second gear 4651. The third gear 4652 is mounted on the output shaft of the control gear 464.

[0050] The substrate soil is poured into the storage trough 41, and the motor 43 is started. The motor 43 drives the first drive sprocket 441 to rotate, and the first driven sprocket rotates accordingly. This causes the drive sprocket, which is coaxially mounted with the first driven sprocket, to rotate synchronously. The second driven sprocket 453 then rotates, which in turn causes the second gear 4651 to rotate. The third gear 4652, which meshes with the second gear 4651, rotates synchronously, thereby controlling the control gear 464, which is coaxially mounted with the third gear 4652, to rotate synchronously. When the control gear 464 rotates to the empty tooth section 4641... When aligned with rack 462, the empty tooth 4641 does not mesh with rack 462, and therefore the covering mechanism 4 does not output covering material, while the sowing mechanism 3 outputs seeds. When the control gear 464 continues to rotate until the tooth 4642 meshes with rack 462, rack 462 begins to slide on the side wall of control box 461, causing the first gear 463 meshing with rack 462 to rotate. The auger 42 then rotates to stir and discharge the covering material in storage tank 41, at which point the sowing mechanism 3 stops outputting seeds. When the auger 42 rotates, the covering material passes through the auger 42 from the covering material discharge pipe into the main discharge channel 6, and is finally output into the seed pit, completely covering the seeds in the seed pit.

[0051] Furthermore, a second gear set 48 is coaxially mounted on the output shaft of the motor 43. The second gear set 48 includes a drive gear 481 coaxially mounted with the output shaft of the motor 43, and a second large gear 482 and a second small gear 483 coaxially mounted with the first drive sprocket 441. The rotational speed of the motor 43 can be controlled by changing the gear meshing with the drive gear 481. When the drive gear 481 meshes with the second small gear 483, the second drive sprocket 451 can rotate faster. The arrangement of the second gear set 48 allows the operating efficiency of the covering mechanism 4 and the sowing mechanism 3 to be adaptively adjusted, thereby allowing the overall operating speed of the device to be adaptively adjusted.

[0052] Furthermore, the auger 42 is installed in the storage tank 41 and the covering material discharge pipe, which can better control the smooth discharge of the covering material. In addition, the covering material discharge pipe is inclined, which can make the discharge of the covering material smoother.

[0053] like Figures 2-6 As shown, the seeding mechanism 3 includes: a third sprocket group 31 that is driven by the sprockets of the first sprocket group 44; a seed metering disc 32 that is driven by the sprockets of the third sprocket group 31; a seed conveying half-shell 33 located on one side of the seed metering disc 32; and an air suction half-shell 34 located on the other side of the seed metering disc 32.

[0054] Furthermore, the seed conveying half-shell 33 is provided with a seed conveying inlet 331 that communicates with the outside and a seed discharge channel 332 that communicates with the main discharge channel 6. The seed metering plate 32 and the inner wall of the seed conveying half-shell 33 form a seed chamber 333.

[0055] Furthermore, a negative pressure fan is installed on the air suction half-shell 34, which draws the seed chamber 333 into a negative pressure state; the seed dispensing tray 32 is provided with several sets of conical holes 321 for negative pressure adsorption of seeds, and the inner wall of the air suction half-shell 34 is provided with air suction channels 341 corresponding to several sets of conical holes 321, which are connected to the air intake of the negative pressure fan.

[0056] Furthermore, an L-shaped felt plate 334 is installed on the inner wall of the seed conveying half-shell 33; the inner side of the L-shaped felt plate 334 is under negative pressure and the outer side is under positive pressure; there is a seed outlet gap 335 between the L-shaped felt plate 334 and the seed metering tray 32 for the passage of seeds.

[0057] In this embodiment, seeds are transported from the seed inlet 331 to the seed chamber 333. A negative pressure fan is activated, creating a negative pressure state inside the seed chamber 333, causing the seeds to suspend. The airflow propels the seeds to the conical hole 321 on the seed metering disc 32. The motor 43 drives the first sprocket group 44 and the second sprocket group 45 to rotate, which in turn drives the seed metering disc 32 to rotate, causing the seeds adsorbed in the conical hole 321 to rotate as well. When the conical hole 321 rotates past the L-shaped felt plate 334, since the inner side of the L-shaped felt plate 334 is under negative pressure and the outer side is under positive pressure, when the seed metering disc 32 rotates to the point where the conical hole 321 is outside the L-shaped felt plate 334, the seeds therein automatically fall into the seed output channel for seed dispensing. This structure ensures a sufficient number of seeds entering the seed pit, preventing them from piling up densely and facilitating subsequent covering operations. Furthermore, the negative pressure adsorption method prevents seed damage due to compression, further guaranteeing the success rate of sorghum black rice.

[0058] In this embodiment, the third sprocket assembly 31 includes: a third driving sprocket 311 coaxially mounted with the first driven sprocket 443, and a third driven sprocket 313 that rotates synchronously with the third driving sprocket 311 via the third transmission chain 312.

[0059] First, a number of seeds are fed into the seed chamber 333 through the seed inlet. Then, the negative pressure fan is started, which draws the gas in the seed chamber 333 into the air suction channel 341 through the conical hole 321. The gas is then drawn into the negative pressure fan through the air suction channel 341. Therefore, the seed chamber 333 is under negative pressure at this time. Under the influence of the negative pressure, the seeds in the seed chamber 333 are suspended in the seed chamber 333 and adsorbed into the conical hole 321 on the seed metering tray 32 in the direction of gas flow.

[0060] The start motor 43 causes the first drive sprocket 441, which is coaxially mounted with the output shaft of the motor 43, to rotate. The first driven sprocket 443 rotates accordingly, driving the third drive sprocket 311 to rotate. The third driven sprocket 313 rotates accordingly, causing the seed metering disc 32 to rotate synchronously. The rotation of the seed metering disc 32 causes the seeds adsorbed in the conical hole 321 to rotate as well. When the conical hole 321 rotates to the seed outlet gap 335, since the L-shaped felt plate 334 is made of elastic and soft material, the seeds can be squeezed through the seed outlet gap 335. Since the outer side of the L-shaped felt plate 334 is under positive pressure, the seeds can fall freely into the seed discharge channel 332, and finally the seeds are output to the seed pit.

[0061] Furthermore, the L-shaped felt plate 334 not only ensures the negative pressure state of the seed chamber 333, but also ensures the smooth seed discharge from the seed metering tray 32, thereby improving the practicality of the device.

[0062] Furthermore, the seed metering disc 32 is equipped with a disturbance column 322. The disturbance column 322 is mainly used to agitate the suspended seeds when the seeds in the seed chamber 333 are suspended in the seed chamber 333 due to negative pressure. This agitates the suspended seeds and allows them to be more quickly adsorbed into the conical hole 321, thereby improving the operating efficiency of the device.

[0063] Furthermore, each set of conical holes 321 is equipped with 1 to 10 holes, allowing each set of seeds to emerge simultaneously and fall into the same seeding pit. This ensures the survival rate of the seeds in the seeding pit while avoiding excessive seed accumulation in the same pit, thus reducing seed waste.

[0064] Furthermore, the third driven sprocket 313 is installed synchronously with the seed metering disc 32 via the third gear set 35. The third gear set 35 includes a third pinion 352 coaxially mounted with the third driven sprocket 313 and a third large gear 351 coaxially mounted with the seed metering disc 32 and meshing with the third pinion 352. The coordinated rotation of the third large gear 351 and the third pinion 352 increases the transmission ratio, allowing the seed metering disc 32 to rotate more efficiently, thereby accelerating the seed dispensing speed and improving the overall operating efficiency of the device.

[0065] Furthermore, the shape of the conical hole 321 is better suited to the shape of sorghum glutinous rice, allowing the sorghum glutinous rice to be more easily adsorbed into the conical hole 321.

[0066] To further explain, such as Figure 1 As shown, the main discharge channel 6 is provided with guide wheels 61 on the side for guiding, which allows the device to slide smoothly and perform continuous operation.

[0067] like Figure 11 As shown, the trenching mechanism 2 includes: a fixed frame 21 installed at the head end of the frame 1 and a trenching wheel assembly 22 installed on the fixed frame 21 by bolts. The fixed frame 21 is provided with a number of positioning holes 23 for adjusting the installation position of the trenching wheel assembly 22.

[0068] To further explain, the trenching wheel assembly 22 includes a second support rod 221 installed with the fixing frame 21 and two trenching wheels 222 installed at the bottom of the second support rod 221 and arranged opposite each other, with the ends of the two trenching wheels 222 close to the ground and tightly closed.

[0069] In this embodiment, the propulsion device moves forward, causing the furrowing wheel assembly 22 to excavate a planting pit in the soil. The two furrowing wheels 222 excavate a conical planting pit from the ground, and the first motor 43 is started simultaneously, allowing the sowing mechanism 3 to sow the seeds at a deeper depth in the soil. The covering mechanism 4 then covers the seeds with covering material. The structure of the furrowing wheels 222 allows the excavated planting pit to be deep, thus burying the seeds at a deeper depth in the soil. This ensures a deeper burial depth for both the seeds and the covering material, which is beneficial for better seed growth and further improves the success rate of sorghum black rice.

[0070] like Figure 10 As shown, the soil covering mechanism 5 includes: a first support rod 51 fixedly installed with the frame 1, symmetrical soil covering devices 52 installed on both sides of the first support rod 51, and a compaction wheel 53 installed on the rear side of the first support rod 51 for compacting the ground; the two soil covering devices 52 are located on both sides of the frame 1, and the compaction wheel 53 is located at the tail end of the frame 1.

[0071] In this embodiment, after the covering material is applied to the seeds in the seed pit by the covering material, the device is continuously pushed forward so that the two covering devices 52 fill the soil excavated by the furrowing wheel 222 back into the seed pit, completely covering and burying the seeds and covering material. Then, the compaction wheel 53 compacts the buried land.

[0072] To further explain, placing the backfilling device 52 on both sides of the frame 1 allows all the soil excavated by the trenching wheel 222 to be backfilled, ensuring the flatness of the land after backfilling.

[0073] To further explain, as the pushing device continues to move forward, the furrowing wheel 222 moves forward accordingly, creating a relatively deep seed pit in the soil. Simultaneously, the motor 43 is activated, driving the first transmission chain 442 wheel set to rotate. The second transmission chain 452 wheel set and the third transmission chain 312 wheel set rotate synchronously, driving the seed metering disc 32 and the control gear 464 to rotate, so that the seeds are output from the main discharge channel 6 into the seed pit. At this time, the hollow tooth part 4641 of the control gear 464 is facing the rack 462, and the covering mechanism 4 does not output covering material. When the seed output ends, the control gear 464 rotates until the tooth part 4642 meshes with the rack 462, thereby controlling the covering material to be output from the main discharge channel 6 into the seed pit and covering the seeds. Then, by continuously pushing the device forward, the covering device 52 fills the seed pit, and the compaction wheel 53 compacts the filled seed pit.

[0074] It should be understood that the specific embodiments described above are only for explaining the present invention and are not intended to limit the present invention. Obvious variations or modifications derived from the spirit of the present invention are still within the protection scope of the present invention.

Claims

1. A sorghum urumi seeding device, characterized by, The utility model provides a kind of seeding machine, including frame (1) and ditching mechanism (2), seeding mechanism (3), covering mechanism (4) and covering mechanism (5) are installed in the frame (1) from front to back in sequence, and the covering mechanism (4) and the seeding mechanism (3) are discharged through total discharge channel (6). The covering mechanism (4) includes: with the frame (1) fixed installation's storage tank (41), the auger (42) is passed in the storage tank (41), the motor (43) is installed on the frame (1), the first sprocket set (44) is coaxially installed with the motor (43) output shaft, the second sprocket set (45) is chain transmission installed with the first sprocket set (44), and the control assembly (46) for controlling the auger (42) rotation discharge is chain transmission installed with the second sprocket set (45). The control assembly (46) includes: the control box (461) is installed on one side of the storage tank (41), the rack (462) is slidably installed on the inner side wall of the control box (461), the first gear (463) is installed on the first end of the auger (42) and is engaged with the rack (462), and the control gear (464) is synchronously rotated with the second sprocket set (45) through the first gear set (465).

2. The sorghum urimi seeding device of claim 1, wherein, The control gear (464) includes: a toothless part (4641) and a gear tooth part (4642), when the control gear (464) is rotated to the toothless part (4641) opposite the rack (462), the seeding mechanism (3) is discharged at this time.

3. The sorghum urimi seeding device of claim 1, wherein, The seeding mechanism (3) includes: the third sprocket set (31) is chain wheel transmission installed with the first sprocket set (44), the seed plate (32) is coaxially transmission installed with the third sprocket set (31), the seed feeding half shell (33) is arranged on one side of the seed plate (32), and the air suction half shell (34) is arranged on the other side of the seed plate (32). The seed feeding half shell (33) is provided with a seed feeding inlet (331) communicated with the outside and a seed discharge channel (332) communicated with the total discharge channel (6), and the seed plate (32) and the inner wall of the seed feeding half shell (33) form a seed chamber (333).

4. The sorghum urimi seeding device of claim 3, wherein, The air suction half shell (34) is provided with a negative pressure fan, which extracts the seed chamber (333) to a negative pressure state; the seed plate (32) is provided with a plurality of groups of conical holes (321) for negative pressure adsorption of seeds, and the air suction half shell (34) is provided with a plurality of groups of air suction channels (341) corresponding to the conical holes (321); the air suction channels (341) are communicated with the air suction port of the negative pressure fan.

5. The sorghum urimi seeding device of claim 4, wherein, The inner wall of the seed feeding half shell (33) is provided with an L-shaped felt plate (334) opposite to the seed discharge channel (332); the inner side of the L-shaped felt plate (334) is in a negative pressure state, and the outer side is in a positive pressure state; the L-shaped felt plate (334) and the seed sowing disc (32) have a seed discharge gap (335) for seed passing.

6. The sorghum urimi seeding device of claim 4, wherein, Each group of the conical holes (321) is provided with 1-10 holes.

7. The sorghum urimi seeding device of claim 3, wherein, The first sprocket set (44) comprises a first driving sprocket (441) coaxially installed with the output shaft of the motor (43), and a first driven sprocket (443) synchronously rotating with the first driving sprocket (441) through a first transmission chain (442); the second sprocket set (45) and the third sprocket set (31) are coaxially installed with the first driven sprocket (443).

8. The sorghum urimi seeding device of claim 1, wherein, The covering mechanism (5) comprises a first support rod (51) fixedly installed with the frame body (1), symmetrical covering devices (52) installed on both sides of the first support rod (51), and a compactor (53) installed on the rear side of the first support rod (51) for compacting the ground; the two covering devices (52) are arranged on both sides of the frame body (1), and the compactor (53) is arranged at the tail end of the frame body (1).

9. The sorghum urimi seeding device of claim 1, wherein, The furrowing mechanism (2) comprises a fixed frame (21) installed at the head end of the frame body (1) and a furrowing wheel assembly (22) installed with the fixed frame (21) through bolts; a plurality of positioning holes (23) for adjusting the installation position of the furrowing wheel assembly (22) are formed in the fixed frame (21).

10. The sorghum urimi seeding device of claim 9, wherein, The furrowing wheel assembly (22) comprises a second support rod (221) installed with the fixed frame (21) and two furrowing wheels (222) oppositely arranged and installed at the bottom end of the second support rod (221); one end of the two furrowing wheels (222) close to the ground is tightly closed.

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