High-speed precision seeding device and its application in pasture planting

Abstract

The application relates to a pasture seeding technology field, in particular to a high-speed precision seeding device and application thereof in pasture planting, which comprises the following: a seeding machine body, a rotating drum is installed on the seeding machine body, a plurality of groups of trapezoidal through holes are arranged on the rotating drum in a circumferential equidistant mode; a ring-shaped blocking net is sleeved on the rotating drum and connected with the seeding machine body, a discharging port matched with the trapezoidal through holes to perform a discharging action is arranged at the bottom of the ring-shaped blocking net; a central shaft is fixedly installed on the seeding machine body and coaxial with the rotating drum, the central shaft is of a hollow structure, a plurality of groups of arc-shaped plates are equidistantly and rotatably installed on the central shaft; a control assembly is detachably installed in the central shaft, the control assembly can drive the plurality of groups of arc-shaped plates to synchronously deflect; a slit is formed on one side of the discharging port; a pump pressure assembly is connected with the slit, the pump pressure assembly can pump and compress gas towards the slit in the process that the trapezoidal through holes are staggered with the discharging port, the precision of a seeding amount caused by seed layering is prevented from being reduced, and the seeding effect is improved.

Description

Technical Field

[0001] This invention relates to the field of forage sowing technology, specifically a high-speed precision sowing device and its application in forage cultivation. Background Technology

[0002] In modern grassland ecological restoration projects, high-speed precision seeding equipment needs to accurately mix small-grained forage seeds such as alfalfa with coating agents and micronutrients before row sowing to achieve a seeding rate error of less than 3% per acre. However, during field operations, the high-frequency vibration of the tractor continuously excites the mixture in the hopper. Due to the significant density difference between seeds and additives, the vibration causes the lighter seeds to float and the heavier additives to sink, resulting in vertical density stratification. The seeding uniformity qualification rate often drops below 75%, severely damaging the consistency of the grassland community.

[0003] To address the stratification problem, existing technologies primarily rely on two approaches: mechanical stirring or a horizontal-axis rolling hopper. While mechanical stirring can reduce the stratification rate to below 5%, the shear stress generated by the rotating blades can damage seeds, especially for pelleted coated seeds. Shearing causes the coating to peel off, weakening efficacy and increasing the risk of mold. The emerging horizontal-axis rolling hopper solution reduces shear damage, but as the drum rotates around the horizontal axis, although seeds and excipients have near-free axial movement, the different densities of seeds and excipients create a compositional gradient along the length of the drum under the coupling of gravity, friction, and centrifugal force. This results in inconsistent uniformity of seeds and excipients at each discharge port, affecting the subsequent germination rate. Summary of the Invention

[0004] The purpose of this invention is to provide a high-speed precision seeding device and its application in forage planting, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a high-speed precision seeding device, comprising: a seeder body, on which a rotating drum is rotatably mounted, and the rotating drum is provided with multiple sets of trapezoidal through holes equidistantly arranged around its circumference; an annular baffle, sleeved on the rotating drum and connected to the seeder body, the bottom of the annular baffle being provided with a discharge port that cooperates with the trapezoidal through holes to perform a feeding action; a central shaft, fixedly mounted on the seeder body and coaxial with the rotating drum, the central shaft having a hollow internal structure, and multiple sets of arc-shaped plates equidistantly and rotatably mounted on the central shaft; a control component, detachably mounted inside the central shaft, the control component being capable of driving the multiple sets of arc-shaped plates to deflect synchronously; a slit formed on one side of the discharge port; and a pumping component connected to the slit, the pumping component being capable of pumping compressed gas toward the slit during the process of the trapezoidal through holes being misaligned with the discharge port.

[0006] The high-speed precision seeding equipment described above: the inner ends of the rotating drum are provided with inner conical surfaces, and end caps are detachably installed on both sides of the rotating drum. The end caps are rotatably installed on the seeder body; a drive motor is also fixedly installed on the seeder body, and the output shaft of the drive motor is connected to one of the end caps via a chain.

[0007] The high-speed precision seeding equipment described above: multiple sets of feed inlets are equidistantly arranged on the end cover, and a pressure ring is provided on the end cover, with a feed component rotatably mounted on the pressure ring that communicates with the feed inlets.

[0008] The high-speed precision seeding equipment described above: the rotating shaft of the arc-shaped plate extends into the interior of the central shaft, and a hollow cavity is formed inside the rotating shaft of the arc-shaped plate. Multiple sets of air jet holes are provided on the side of the hollow cavity away from the central shaft; a gear is also fixedly installed on the rotating shaft of the arc-shaped plate, and the gear is connected to the control component.

[0009] The high-speed precision seeding equipment described above includes: a cover plate detachably mounted on the side of the central shaft; the control assembly includes a telescopic module detachably mounted inside the central shaft and a connecting rod detachably connected to the telescopic module; the connecting rod is provided with a transverse groove, which is rotatably connected to a guide wheel rotatably mounted inside the central shaft; multiple sets of teeth are equidistantly arranged on the connecting rod, and the teeth mesh with the gear.

[0010] The high-speed precision seeding equipment described above: a convex shaft is provided at the bottom of the annular baffle, a limiting frame is provided on the seeder body, a square groove is provided inside the limiting frame, and the convex shaft can move within the square groove.

[0011] The high-speed precision seeding equipment described above: the end of the annular baffle is provided with multiple sets of abutting wheels at equal intervals around the circumference, and the abutting wheels roll and abut against the outside of the rotating drum; a stop ring is detachably installed on the outer wall of the rotating drum, and multiple sets of triangular portions are provided at equal intervals around the circumference on the side of the stop ring away from the abutting wheels. The triangular portions are provided with inclined surfaces.

[0012] The high-speed precision seeding equipment described above includes a pump pressure assembly comprising a sealed cylinder fixedly installed on the annular baffle. A sealing plug is slidably installed inside the sealed cylinder. A follower plate that penetrates the sealed cylinder is connected to the sealing plug. A cylindrical spring is sleeved on the follower plate, and a trigger wheel adapted to the inclined surface is rotatably installed on the follower plate. Two sets of one-way valves with opposite conduction directions are provided on the sealed cylinder, one set of which is connected to the slit through a connecting pipe.

[0013] Application of a high-speed precision seeding device as described above in forage cultivation.

[0014] Compared with the prior art, the beneficial effects of this invention are as follows: Through the arrangement of the rotating drum, annular baffle, arc-shaped plate, and control components, firstly, under the action of the arc-shaped plate, the seeds and auxiliary materials, which are undergoing a parabolic motion, can move along the axial direction of the rotating drum, thereby achieving transverse mixing and stirring of the seeds and auxiliary materials. Combined with the parabolic motion mixing method of the seeds and auxiliary materials, multi-directional mixing of the seeds and auxiliary materials is achieved, improving the mixing effect and preventing the generation of component gradients. Secondly, the compressed gas ejected from the pump's air hole can act on the auxiliary materials, causing them to move towards the seeds above, further ensuring the uniformity of the mixing. The compressed gas, guided by the arc plate, generates a spiral airflow in the rotating drum, enhancing the lateral movement of seeds and auxiliary materials within the drum and further improving the mixing effect of seeds and auxiliary materials along the axial direction of the drum. Through the set slit and pumping components, as the trapezoidal through-hole and the discharge port begin to switch from complete overlap to misalignment, the compressed gas can be pumped from the sealed cylinder into the slit, accelerating the compressed gas and continuously spraying it towards the boundary between the trapezoidal through-hole and the discharge port. This pushes the seeds at the boundary apart, preventing the shear force generated when the trapezoidal through-hole and the discharge port are completely misaligned from causing the seeds to be crushed. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a high-speed precision seeding device.

[0016] Figure 2 This is a schematic diagram of the structure of a high-speed precision seeding device after the seeder body has been removed.

[0017] Figure 3 This is an exploded view of the rotating drum and end cap structure in a high-speed precision seeding device.

[0018] Figure 4 This is an exploded view of the structure of the end cover, pressure ring, and feed component in a high-speed precision seeding device.

[0019] Figure 5 This is a schematic diagram of the structure of the rotating drum, the annular baffle, and the stop ring in a high-speed precision seeding device.

[0020] Figure 6 This is a cross-sectional view of the rotary drum in a high-speed precision seeding device.

[0021] Figure 7 This is a schematic diagram of the central shaft and arc plate in a high-speed precision seeding device.

[0022] Figure 8 This is an exploded view of the central shaft and control components in a high-speed precision seeding device.

[0023] Figure 9 for Figure 8 Enlarged view of the structure at point A in the middle.

[0024] Figure 10 This is a schematic diagram of the arc-shaped plate in a high-speed precision seeding device.

[0025] Figure 11 This is a cross-sectional view of the arc-shaped plate in a high-speed precision seeding device.

[0026] Figure 12 This is a cross-sectional view of the rotary drum and annular screen in a high-speed precision seeding device.

[0027] Figure 13 for Figure 12 Enlarged view of the structure at point B.

[0028] Figure 14 This is a schematic diagram of the internal structure of the pump pressure component in a high-speed precision seeding device.

[0029] In the diagram: 1. Seeder body; 2. Rotary drum; 201. Trapezoidal through hole; 202. Inner conical surface; 3. End cap; 301. Feed inlet; 302. Pressure ring; 303. Feeding component; 4. Drive motor; 5. Chain; 6. Annular baffle; 601. Discharge port; 602. Protruding shaft; 7. Abutment wheel; 8. Stop ring; 9. Triangular part; 901. Inclined surface; 10. Limiting frame; 1001. Square groove; 11. 1101. Central shaft; 12. Cover plate; 13. Telescopic module; 14. Connecting rod; 15. Horizontal groove; 16. Tooth; 17. Guide wheel; 18. Arc plate; 19. Pumping port; 20. Hollow chamber; 21. Gear; 22. Connecting pipe; 23. Slit; 4. Sealing cylinder; 54. Sealing plug; 6. Check valve; 7. Cylindrical spring; 8. Follower plate; 9. Trigger wheel. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0031] Please see Figures 1-14 As an embodiment of the present invention, the high-speed precision seeding device includes: a seeder body 1, an annular baffle 6, a central shaft 11, a control component, a slit 17, and a pump pressure component.

[0032] A rotating drum 2 is rotatably mounted on the seeder body 1. The rotating drum 2 has multiple sets of trapezoidal through holes 201 arranged equidistantly around its circumference. Furthermore, the two ends of the inner side of the rotating drum 2 are provided with inner conical surfaces 202. The inner conical surfaces 202 can prevent the accumulation of seeds and auxiliary materials along the axial end of the rotating drum 2 when they enter the rotating drum 2, so that the seeds and auxiliary materials in the rotating drum 2 can be effectively turned and mixed, improving the uniformity of the seeds and auxiliary materials. End caps 3 are detachably installed on both sides of the rotating drum 2, and the end caps 3 are rotatably mounted on the seeder body 1.

[0033] The annular baffle 6 is fitted onto the rotating drum 2 and connected to the seeder body 1. The bottom of the annular baffle 6 is provided with a discharge port 601 that cooperates with the trapezoidal through hole 201 to perform the feeding action. During the rotation of the rotating drum 2, the seeds and auxiliary materials in the rotating drum 2 can enter the discharge port 601 when the trapezoidal through hole 201 and the discharge port 601 overlap, and are guided into the soil through the pipe. Although the trapezoidal through hole 201 and the discharge port 601 are in an intermittent communication state, a certain amount of seeds and auxiliary materials will be stored in the discharge port 601 during the communication process. By controlling the rotation speed of the rotating drum 2, the trapezoidal through hole 201 can overlap with the discharge port 601 in time after the seeds and auxiliary materials in the discharge port 601 are consumed, thereby replenishing the seeds and auxiliary materials in the discharge port 601, and achieving the effect of continuously delivering seeds and auxiliary materials to the soil, ensuring the uniformity of the forage after sowing.

[0034] The seeder body 1 is also fixedly installed with a drive motor 4, and the output shaft of the drive motor 4 is connected to one of the end caps 3 via a chain 5.

[0035] The end cap 3 is provided with multiple sets of feed ports 301 equidistantly arranged in a circle, and the end cap 3 is provided with a pressure ring 302, on which a feed component 303 communicating with the feed port 301 is rotatably mounted.

[0036] In this embodiment, the seeds and auxiliary materials are placed in the rotating drum 2. During the sowing process, the drive motor 4 drives the rotating drum 2 to rotate via the chain 5. At this time, the rotating drum 2 can drive the seeds and auxiliary materials to move. Specifically, the seeds and auxiliary materials are subjected to their own gravity and centrifugal force during the rotation of the rotating drum 2. Under the action of centrifugal force, the seeds and auxiliary materials can adhere to the inner wall of the rotating drum 2. When the seeds and auxiliary materials are driven to a certain height by the rotating drum 2, they can perform parabolic motion in the rotating drum 2, thereby achieving the effect of stirring the seeds and auxiliary materials to a certain extent and preventing the seeds and auxiliary materials from separating due to differences in density and mass.

[0037] It should be noted that, in order to prevent seeds from impacting the inner wall of the rotating cylinder 2 due to parabolic motion and causing damage to the seed structure, a shock-absorbing membrane can be installed on the inner wall of the rotating cylinder 2 to buffer the force of the seeds impacting the inner wall of the rotating cylinder 2. For seeds that do not come into contact with the inner wall of the rotating cylinder 2, the presence of the auxiliary material between the seeds allows the impact between the seeds to be buffered by the auxiliary material, thereby avoiding overt mechanical damage and latent physiological damage to the seeds.

[0038] Furthermore, when it is necessary to add seeds and auxiliary materials to the rotating drum 2, the evenly mixed seeds and auxiliary materials can be poured into the feed member 303. At this time, under the action of gravity, the seeds and auxiliary materials can slide along the feed member 303 and enter the rotating drum 2 after passing through the feed inlet 301.

[0039] It should also be noted that during the process of adding seeds and auxiliary materials to the rotating drum 2, the feeders 303 on both sides of the rotating drum 2 should be used to add the seeds and auxiliary materials evenly. That is, add equal amounts of seeds and auxiliary materials to the feeders 303 on both sides so that the seeds can be distributed as evenly as possible in the rotating drum 2. This will prevent the seeds and auxiliary materials from accumulating on one side of the rotating drum 2 due to unilateral feeding, which would result in uneven feeding.

[0040] Please see Figure 3 , Figures 7-11 The central shaft 11 is fixedly installed on the seeder body 1 and coaxial with the rotating drum 2. The interior of the central shaft 11 is a hollow structure, and multiple sets of arc-shaped plates 15 are equidistantly and rotatably installed on the central shaft 11. A cover plate 1101 is detachably installed on the side of the central shaft 11.

[0041] The rotating shaft of the arc plate 15 extends into the interior of the central shaft 11, and a hollow cavity 1502 is formed inside the rotating shaft of the arc plate 15. Multiple sets of air pumping holes 1501 are provided on the side of the hollow cavity 1502 away from the central shaft 11.

[0042] A gear 1503 is also fixedly installed on the rotating shaft of the arc plate 15, and the gear 1503 is connected to the control component.

[0043] The control component is detachably installed inside the central shaft 11. The control component can drive multiple sets of arc plates 15 to deflect synchronously. The control component includes a telescopic module 12 detachably installed inside the central shaft 11 and a connecting rod 13 detachably connected to the telescopic module 12. The connecting rod 13 is provided with a transverse groove 1301, which is rotatably connected to a guide wheel 14 rotatably installed inside the central shaft 11.

[0044] Multiple sets of teeth 1302 are equidistantly arranged on the connecting rod 13, and the teeth 1302 mesh with the gear 1503.

[0045] In this application, components such as the central shaft 11 and the arc plate 15 are detachable and installable. This allows for disassembly and replacement when the corresponding components are damaged, thereby reducing the cost of use. Specifically, during assembly, the cover plate 1101 on the central shaft 11 is first removed, and each set of arc plates 15 is installed on the central shaft 11. At the same time, the gears 1503 on the arc plates 15 are installed. After installation, it is necessary to ensure that each set of arc plates 15 is in a parallel state. Then, the telescopic module 12, guide wheel 14, and connecting rod 13 are installed. Subsequently, the cover plate 1101 is installed on the central shaft 11. Finally, the end caps 3 are installed on both sides of the central shaft 11, and the connecting buckles between the central shaft 11 and the seeder body 1 are installed. This completes the assembly operation. When the components in the rotating drum 2 are damaged, they can be replaced in a timely manner through corresponding disassembly. This reduces the cost of use and avoids long-term downtime caused by equipment component damage, thereby shortening the sowing cycle to a certain extent.

[0046] In this embodiment, before use, the external compressed gas pumping device needs to be connected to the central shaft 11. Initially, the multiple sets of arc plates 15 are in a parallel and inclined state. In this state, when the rotating drum 2 rotates to move the seeds and excipients to a certain height and then make the seeds and excipients move in a parabolic motion, the seeds and excipients can fall on the arc plates 15. The arc plates 15 are in an inclined state, so that the seeds and excipients can move along the axial direction of the rotating drum 2 under the guidance of the arc plates 15. When the telescopic module 12 is activated... When the connecting rod 13 is activated, the arc plate 15 is deflected in the opposite direction by the cooperation of the tooth 1302 and the gear 1503. This allows the seeds and auxiliary materials in the rotating drum 2 to move in the opposite direction along the axial direction of the rotating drum 2. That is, through the reciprocating deflection of the arc plate 15, the seeds and auxiliary materials can move back and forth periodically in the rotating drum 2, thereby achieving mixing of the seeds and auxiliary materials in the axial direction of the rotating drum 2, improving the mixing uniformity of the seeds and auxiliary materials, preventing the occurrence of stratification, and improving the uniformity of the seeds and auxiliary materials during sowing.

[0047] Furthermore, during the process of the arc plate 15 guiding the seeds and auxiliary materials, the external compressed gas pumping device will also deliver compressed gas towards the central shaft 11. At this time, the compressed gas can enter the hollow cavity 1502 from the central shaft 11 and be ejected from the pumping hole 1501, thereby generating an upward airflow. The significance of this setting is that during the process of the seeds and auxiliary materials tending to separate, the lighter auxiliary materials will move towards the upper part of the seeds. When the seeds and auxiliary materials are in a parabolic motion, the relative height between the seeds and auxiliary materials will change, that is, the auxiliary materials will switch to the lower layer of the seeds. The upward airflow generated can make the airflow act on the auxiliary materials to push them upward. Since the seeds have a larger mass, their movement trajectory is less affected by the compressed gas, which allows the auxiliary materials to have an upward tendency relative to the seeds, so that the auxiliary materials can enter the upper layer of seeds, ensuring the uniform mixing of seeds and auxiliary materials.

[0048] Furthermore, after the compressed gas is ejected from the pump hole 1501, it can generate a spiral airflow in the rotating drum 2 under the guidance of the arc plate 15. This spiral gas can assist the seeds and excipients to move laterally in the rotating drum 2, thereby improving the mixing effect of the seeds and excipients along the axial direction of the rotating drum 2 to a certain extent, further ensuring the mixing effect between the seeds and excipients, and preventing the two from separating.

[0049] Based on the above settings, firstly, by using the rotation of the rotating drum 2 instead of traditional mechanical stirring, it is possible to ensure uniform mixing of seeds and excipients while avoiding the shear force generated by mechanical stirring that could cause overt mechanical damage and latent physiological damage to the seeds, thus improving the germination rate. Secondly, under the action of the arc plate 15, the seeds and excipients, which are undergoing parabolic motion, can move along the axial direction of the rotating drum 2, thereby achieving lateral mixing of seeds and excipients. Combined with the parabolic motion mixing method of seeds and excipients, multi-directional mixing of seeds and excipients is achieved, improving the mixing effect and preventing the generation of component gradients. In addition, the compressed gas ejected from the pump air hole 1501 can act on the excipients, causing them to move towards the seeds above, further ensuring the uniformity of mixing. At the same time, the compressed gas can generate a spiral airflow in the rotating drum 2 under the guidance of the arc plate 15, and strengthen the lateral movement of seeds and excipients in the rotating drum 2, further improving the mixing effect of seeds and excipients along the axial direction of the rotating drum 2.

[0050] Please see Figures 2-3 , Figure 5 The bottom of the annular baffle 6 is provided with a convex shaft 602, and the seeder body 1 is provided with a limiting frame 10. The limiting frame 10 is provided with a square groove 1001, and the convex shaft 602 can move within the square groove 1001.

[0051] The end of the annular baffle 6 is provided with multiple sets of abutting wheels 7 at equal intervals around the circumference, and the abutting wheels 7 roll and abut against the outside of the rotating drum 2.

[0052] A stop ring 8 is detachably installed on the outer wall of the rotating drum 2. The stop ring 8 is used to restrict the movement of the abutment wheel 7 along the axial direction of the rotating drum 2. This arrangement allows the rotating drum 2 and the annular baffle 6 to be in an axially locked state. During the rotation of the rotating drum 2 relative to the annular baffle 6, the trapezoidal through hole 201 can coincide with the discharge port 601 and not be misaligned along the axial direction of the rotating drum 2, thereby improving the discharge effect.

[0053] In this embodiment, the annular baffle 6 is sleeved on the rotating drum 2, and the abutting wheel 7 is rotatably mounted on the outer wall of the rotating drum 2. This allows the abutting wheel 7 to guide the annular baffle 6 so that when the rotating drum 2 vibrates, the annular baffle 6 can follow the vibration. This prevents abnormal friction between the annular baffle 6 and the rotating drum 2 caused by the annular baffle 6 not keeping pace with the vibration of the rotating drum 2, and improves the tightness of the fit between the two.

[0054] Furthermore, when the rotating drum 2 rotates, when it jumps along its axial direction, the annular baffle 6 will follow the movement. At this time, the convex shaft 602 can move within the square groove 1001, allowing the annular baffle 6 to jump with the rotating drum 2. As for the limiting frame 10, it can have a certain limiting effect on the annular baffle 6 to prevent the annular baffle 6 from rotating with the rotating drum 2.

[0055] Please see Figures 12-14 In existing technologies, the shear forces causing overt mechanical damage and latent physiological damage to seeds come not only from mechanical agitation but also from the shear forces of the feeding structure at the bottom of the hopper. Specifically, the traditional feeding structure includes an outer shell and a rotating component rotatably mounted inside the outer shell. During rotation, the rotating component carries some seeds and auxiliary materials into the conveying pipe, thus achieving the feeding operation. However, during the rotation of the rotating component, its end is in a sliding contact with the inner wall of the outer shell. This results in some seeds being trapped between the rotating component and the inner wall during the feeding process. The upper contact area of ​​the outer shell causes the seeds to be squeezed and sheared when the rotating part rotates, which eventually leads to the seeds being crushed. In this embodiment, the rotating drum 2 is in a rotating state, and the material is discharged by intermittently connecting the trapezoidal through hole 201 with the discharge port 601. However, during the separation of the trapezoidal through hole 201 and the discharge port 601, there is still shearing force. Therefore, the stop ring 8 is provided with multiple sets of triangular parts 9 at equal intervals around the side away from the abutting wheel 7, and the triangular parts 9 are provided with inclined surfaces 901; the slit 17 is formed on one side of the discharge port 601.

[0056] The pumping assembly is connected to the slit 17. The pumping assembly can pump compressed gas toward the slit 17 while the trapezoidal through hole 201 is misaligned with the discharge port 601. The pumping assembly includes a sealing cylinder 18 fixedly installed on the annular baffle 6. A sealing plug 19 is slidably installed inside the sealing cylinder 18. A follower plate 22 that penetrates the sealing cylinder 18 is connected to the sealing plug 19. A columnar spring 21 is sleeved on the follower plate 22, and a trigger wheel 23 adapted to the inclined surface 901 is rotatably installed on the follower plate 22.

[0057] The sealed cylinder 18 is provided with two sets of one-way valves 20 with opposite conduction directions, one of which is connected to the slit 17 through a connecting pipe 16.

[0058] During the rotation of the rotating drum 2 relative to the annular baffle 6, the triangular part 9 will rotate with the rotating drum 2. When the trigger wheel 23 abuts against the inclined surface 901, the inclined surface 901 tends to guide the movement of the trigger wheel 23, so that under the action of the follower plate 22, the sealing plug 19 can be pulled away from the one-way valve 20. During this process, the column spring 21 can be compressed to store elastic potential energy. When the trigger wheel 23 moves to separate from the inclined surface 901, the trapezoidal through hole 201 and the discharge port 601 begin to switch from complete overlap to offset. When the trigger wheel 23 separates from the inclined surface 901, the column spring 21 will release elastic potential energy and squeeze the sealing cylinder 18. Air is compressed within the sealed cylinder 18 and enters the slit 17 through the connecting pipe 16. After the compressed gas enters the slit 17, due to the small conductivity of the slit 17, the compressed gas can be further accelerated within the slit 17, and the compressed gas in the sealed cylinder 18 can be continuously sprayed for a certain period of time. Finally, it acts obliquely upward on the seeds and auxiliary materials at the boundary between the trapezoidal through hole 201 and the discharge port 601. At the moment when the trapezoidal through hole 201 and the discharge port 601 are completely misaligned, the seeds at the junction can be pushed away by the action of the compressed gas, avoiding the shear force generated when the two are completely misaligned, which would cause the seeds to be squeezed and broken.

[0059] With the above settings, as the trapezoidal through-hole 201 and the discharge port 601 begin to switch from being completely aligned to being misaligned, compressed gas can be pumped from the sealed cylinder 18 into the slit 17, so that the compressed gas is accelerated and continuously sprayed toward the boundary between the trapezoidal through-hole 201 and the discharge port 601, so as to push the seeds at the boundary between the two apart, and avoid the shear force generated when the trapezoidal through-hole 201 and the discharge port 601 are completely misaligned, which would cause the seeds to be squeezed and broken.

[0060] As an embodiment of the present invention, an application of the high-speed precision seeding equipment described above in forage planting is also proposed.

[0061] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0062] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A high-speed precision seeding apparatus, characterized in that, The utility model provides a kind of high-speed precision seeding equipment, including: Seeder body, the rotating installation of drum is installed on the seeder body, and the drum is circumferentially equidistantly provided with multiple groups of trapezoidal through holes; Annular blocking net is sleeved on the drum and is connected with the seeder body, and the bottom of the annular blocking net is provided with a discharging port matched with the trapezoidal through hole to perform a discharging action; Center shaft is fixedly installed on the seeder body and coaxial with the drum, the inside of the center shaft is hollow structure, and multiple groups of arc-shaped plates are equidistantly and rotatably installed on the center shaft; Control assembly is detachably installed inside the center shaft, and the control assembly can drive multiple groups of the arc-shaped plates to deflect synchronously; Slit is formed on one side of the discharging port; Pump pressure assembly is connected with the slit, and the pump pressure assembly can pump compressed gas towards the slit during the dislocation of the trapezoidal through hole and the discharging port; The end of the annular blocking net is circumferentially equidistantly provided with multiple groups of abutting wheels, and the abutting wheels rollingly abut with the outside of the drum; Detachable stop ring is installed on the outer wall of the drum, and multiple groups of triangular portions are circumferentially equidistantly provided on the side of the stop ring away from the abutting wheels, and the triangular portions are provided with inclined surfaces; The pump pressure assembly includes a sealed cylinder body fixedly installed on the annular blocking net, a sealing plug is sealingly and slidingly installed in the sealed cylinder body, a follower plate penetrating the sealed cylinder body is connected to the sealing plug, a cylindrical spring is sleeved on the follower plate, and a trigger wheel adapted to the inclined surface is rotatably installed on the follower plate; The sealed cylinder body is provided with two groups of one-way valves with opposite directions, and one group of the one-way valves is connected with the slit through a communication pipe.

2. A high-speed precision seeding apparatus according to claim 1, characterized in that, The inside of the drum is provided with inner conical surfaces at both ends, and end covers are detachably installed on both sides of the drum, and the end covers are rotatably installed on the seeder body; The seeder body is also fixedly installed with a driving motor, and the output shaft of the driving motor is connected with one group of the end covers through a chain.

3. A high-speed precision seeding apparatus according to claim 2, characterized in that, Multiple groups of feeding ports are circumferentially equidistantly provided on the end cover, and a press ring is provided on the end cover, and a feeding member communicating with the feeding ports is rotatably installed on the press ring.

4. The high-speed precision seeding apparatus of claim 1, wherein, The rotating shaft of the arc-shaped plate extends to the inside of the center shaft, and a hollow chamber is formed in the rotating shaft of the arc-shaped plate, and multiple groups of air injection holes are provided on the side of the hollow chamber away from the center shaft; A gear is also fixedly installed on the rotating shaft of the arc-shaped plate, and the gear is connected with the control assembly.

5. A high-speed precision seeding apparatus according to claim 4, characterized in that, A cover plate is detachably installed on the side of the center shaft; The control assembly includes a telescopic module detachably installed inside the center shaft and a connecting rod detachably connected with the telescopic module, and the connecting rod is provided with a transverse slot, and the transverse slot is rollingly connected with a guide wheel rotatably installed in the center shaft; Multiple groups of teeth are equidistantly provided on the connecting rod, and the teeth are engaged with the gear.

6. A high-speed precision seeding apparatus according to claim 1, wherein, The bottom of the annular blocking net is provided with a convex shaft, the seeder body is provided with a limiting frame, a square slot is formed in the limiting frame, and the convex shaft can move in the square slot.

7. Application of the high-speed precision seeding equipment according to any one of claims 1-6 in pasture planting.

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