Precision corn seeding device with adjustable plant spacing

Abstract

The invention belongs to the technical field of agricultural machinery, particularly relates to a plant spacing adjustable corn precision seeding device, and aims to solve the problems that an existing device cannot select watering opportunity according to actual soil and seed spacing is difficult to control. A main frame of the device is connected with agricultural machinery, a ditching structure with a V-shaped shifting plate is arranged at the bottom, and the ditching depth is controlled through a threaded rod; a plurality of groups of seeding structures comprising material stirring discs are arranged on one side, and the rotating speed of the material stirring discs is controlled through a transmission shaft, an anti-skid wheel and a gearbox so as to adjust the distance between seeds; a watering structure is arranged on the circular shell and comprises a watering pipe I and a watering pipe II, when the stirring disc rotates, a control structure is triggered several seconds after seeding by utilizing an included angle between a hemisphere and a trough, and the watering pipes are unblocked for watering; the movable plate can be controlled through a magnetic attraction force module and a magnetic repulsion force module, watering selection before and after soil covering is achieved, and the seeding quality and efficiency are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of agricultural machinery, in particular to a plant distance adjustable corn precision seeding device. BACKGROUND

[0002] With the continuous development of agricultural production technology and agricultural machinery technology, the types and varieties of crops are more and more; in recent years, various excellent crops have been widely promoted. For example, corn seeds are sown. In the process of sowing, in order to ensure that the corn seeds can grow smoothly, it is generally necessary to water the seeds after sowing, for example, when sowing in dry soil, watering is needed before burying the soil after sowing, which can avoid water loss, and when the soil moisture content is appropriate, watering is needed after burying the soil after sowing, so that the water slowly penetrates to ensure that the seeds can fully absorb water, but the existing seeding device cannot select the appropriate watering time according to the actual situation of the soil, which affects the growth and development of the seeds.

[0003] In addition, during sowing, the distance between the seeds cannot be controlled according to the situation, resulting in the phenomenon of sparse or dense seeds during sowing, which affects the yield and healthy growth of corn. SUMMARY

[0004] The purpose of the present application is to solve the problem that the existing technology cannot select the appropriate watering time according to the actual situation of the soil and cannot control the distance between the seeds according to the situation, and a plant distance adjustable corn precision seeding device is provided.

[0005] In order to achieve the above purpose, the present application adopts the following technical scheme: A plant distance adjustable corn precision seeding device, comprising: A main frame for connecting with agricultural machinery; A trench opening structure arranged at the bottom of the main frame, the trench opening structure comprising a plurality of V-shaped plates; A plurality of seeding structures arranged on one side of the main frame, the seeding structure comprising a circular shell and a material stirring disc rotatably connected in the circular shell, a plurality of material grooves for receiving seeds are arranged on the outer periphery of the material stirring disc, a seeding pipe is arranged at the bottom of the circular shell, and a soil burying plate is fixed to the side of the circular shell away from the main frame; A transmission mechanism comprising a transmission shaft and an anti-skid wheel, the transmission shaft rotatably penetrating through a plurality of circular shells and being fixedly connected with a plurality of material stirring discs, the anti-skid wheel being in transmission connection with the transmission shaft through a speed changer, the speed ratio of the transmission shaft and the anti-skid wheel being adjusted through the speed changer to control the rotating speed of the material stirring disc, thereby adjusting the seeding distance; Multiple watering structures are provided on the circular shell. Each watering structure includes a watering pipe I and a watering pipe II. The watering pipe I is used to water the soil before covering the soil, and the watering pipe II is used to water the soil after covering the soil. The feeding disc has multiple hemispheres arranged in a ring on one side, and the circular shell has a corresponding annular groove into which the hemispheres extend. A push rod is also slidably connected to the circular shell, and a sliding plate cooperates with the hemispheres through the push rod. When the feeding disc rotates, the hemispheres periodically push the push rod and the sliding plate to move. The sliding plate is linked with the watering structure through a moving plate and an L-shaped rod to control the opening and closing of watering pipe I or watering pipe II.

[0006] In one possible design, the channel opening structure further includes multiple vertical rods fixed to the bottom of the main frame, a lifting frame slidably sleeved outside the vertical rods, and a threaded rod threaded through the main frame. The bottom end of the threaded rod is rotatably connected to the top of the lifting frame. Multiple V-shaped baffles are fixed to the bottom end of the lifting frame. By rotating the threaded rod, the lifting frame is driven to rise and fall along the vertical rods to adjust the channel opening depth of the V-shaped baffles.

[0007] In one possible design, the sowing structure further includes a feed pipe fixed to the top of the circular shell and a hopper fixed to the top of the feed pipe. The feed pipe is fixedly connected to the main frame through a fixing frame. When the feed plate rotates, the feed trough on it passes under the feed pipe in sequence to receive the seeds and transport the seeds to the sowing pipe for discharge.

[0008] In one possible design, a tension spring connects the sliding plate and the circular housing. When the hemisphere slides past the push rod, the sliding plate and push rod return to their original positions under the action of the tension spring.

[0009] In one possible design, the control mechanism of the watering structure includes a fixed cylinder, a rod slidably disposed within the fixed cylinder, and a spring sleeved outside the rod. One end of each of the two rods extends into watering pipe I and watering pipe II, respectively, and both are fixed with a sealing ball.

[0010] In one possible design, the hemisphere and the trough are at an angle of 5° to 8°, so that the hemisphere pushes the push rod to trigger watering several seconds after the sowing action is completed, thus achieving a delayed coordination between sowing and watering.

[0011] In one possible design, it also includes an L-shaped plate, a connecting plate slidably connected to the L-shaped plate, and a magnetic repulsion module and a magnetic attraction module disposed between the connecting plate and the L-shaped plate. All of the moving plates are slidably connected to the connecting plate. By controlling the magnetic repulsion module and the magnetic attraction module to alternately turn on and off power, the connecting plate drives all the moving plates to move synchronously, so as to switch the engagement of the L-shaped rod with the control mechanism of watering pipe I or watering pipe II, thereby selecting the watering mode before or after covering with soil.

[0012] In one possible design, two adjacent circular shells are fixedly connected by multiple connecting rods, and a fixing ring I is fitted and fixed on the outer wall of the multiple connecting rods. The fixing ring I is fixedly connected to the main frame by an inclined plate.

[0013] In one possible design, a liquid storage pipe is jointly fixed to one side of multiple circular shells by clamps, and both watering pipe I and watering pipe II are connected to the liquid storage pipe through flexible hoses.

[0014] In one possible design, a gap is provided between the outer wall of the feeding disc and the inner wall of the circular housing to provide space for oversized seeds and prevent them from getting stuck.

[0015] Beneficial effects: In this invention, the anti-slip wheel drives the transmission shaft and the feeding disc to rotate through the synchronous belt and synchronous pulley transmission connection between the rotating rod and the gearbox. The speed ratio between the transmission shaft and the rotating rod can be adjusted by the gearbox, thereby controlling the speed of the feeding disc. In this way, the speed of the feeding disc can be controlled during the uniform movement of the sowing device, and the sowing spacing of the seeds can be controlled, so that the corn can grow healthily at a suitable distance. In this invention, when the feeding disc rotates to complete the sowing, there is a certain angle (5°-8°) between the feeding trough and the hemisphere. Therefore, a few seconds after sowing, the hemisphere adjacent to the feeding trough pushes the push rod and the sliding plate to move outward. The sliding plate drives the insertion rod and the sealing ball in the watering pipe I to move synchronously through the moving plate and the L-shaped rod. The sealing ball releases the seal on the watering pipe I. At this time, the water in the storage pipe sprays downward through the watering pipe I to complete the watering operation after seed sowing. Afterward, the soil covering plate can carry out the soil covering operation to complete the soil covering work of the seeds and avoid water loss. In this invention, when the two electromagnets in the magnetic attraction module are energized, the resulting magnetic attraction can drive the moving plate to move towards the L-shaped plate via the connecting plate. At this time, one of the L-shaped rods on one side of the moving plate moves out of the insertion hole in the watering pipe II, and the other L-shaped rod is inserted into the insertion hole in the watering pipe I, completing the connection between the moving plate and the insertion rod in the watering pipe I. This facilitates watering by the watering pipe I later. Conversely, it can control the watering pipe II to perform watering operations. Watering can be carried out before or after covering the soil according to the soil conditions, so that the seeds can grow healthily under suitable conditions. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of a precision corn seeding device with adjustable plant spacing provided by the present invention. Figure 2 This is a three-dimensional structural diagram of the main frame and circular shell of an adjustable-spacing corn precision seeding device provided by the present invention. Figure 3This is a three-dimensional structural diagram of the circular shell, lifting frame, and V-shaped lever of an adjustable-spacing corn precision seeding device provided by the present invention. Figure 4 This is a three-dimensional exploded view of the main frame and lifting frame of a precision corn seeding device with adjustable plant spacing provided by the present invention. Figure 5 This is a three-dimensional exploded structural diagram of the circular shell, fixing ring I, and connecting rod of a precision corn seeding device with adjustable plant spacing provided by the present invention. Figure 6 This is a three-dimensional structural diagram of the L-shaped plate and connecting plate of an adjustable-spacing corn precision seeding device provided by the present invention. Figure 7 A three-dimensional exploded view of the hopper and circular shell of a precision corn planting device with adjustable plant spacing provided by the present invention. Figure 8 This is a cross-sectional view of the circular shell and feed tray of an adjustable-spacing corn precision seeding device provided by the present invention. Figure 9 This is a three-dimensional exploded view of the rotating rod and gearbox of a precision corn seeding device with adjustable plant spacing provided by the present invention. Figure 10 This is a three-dimensional exploded cross-sectional view of the feed tray and circular shell of a precision corn seeding device with adjustable plant spacing provided by the present invention. Figure 11 This is a three-dimensional exploded view of the sliding plate, crossbar, and bellows protective cover of a corn precision seeding device with adjustable plant spacing provided by the present invention. Figure 12 This is a partial three-dimensional cross-sectional view of the watering pipe I and the fixing cylinder of an adjustable-spacing corn precision seeding device provided by the present invention. Figure 13 This is a three-dimensional exploded view of the connecting plate and L-shaped plate of the adjustable-spacing corn precision seeding device provided by the present invention. Figure 14 This is a schematic diagram of the structure of the hemisphere and the feed trough of an adjustable corn precision seeding device provided by the present invention.

[0017] In the diagram: 1. Main frame; 2. Vertical rod; 3. Lifting frame; 4. Threaded rod; 5. V-shaped lever; 6. Circular shell; 7. Drive shaft; 8. Connecting rod; 9. Fixing ring I; 10. Inclined plate; 11. Material pipe; 12. Fixing frame; 13. Hopper; 14. Material feeding disc; 15. Material trough; 16. Seeding pipe; 17. Soil-burying plate; 18. Rotating rod; 19. Anti-slip wheel; 20. Gearbox; 21. Liquid storage pipe; 22. Watering pipe I; 2 3. Watering pipe II; 24. Crossbar; 25. Sliding plate; 26. Bellows protective cover; 27. Tension spring; 28. Push rod; 29. ​​Hemisphere; 30. Annular groove; 31. Moving plate; 32. L-shaped rod; 33. Fixed cylinder; 34. Fixed ring II; 35. Spring; 36. Insert rod; 37. Sealing ball; 38. Insertion hole; 39. L-shaped plate; 40. Connecting plate; 41. Magnetic repulsion module; 42. Magnetic attraction module; 43. U-shaped cover. Detailed Implementation

[0018] 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.

[0019] In one embodiment: Refer to Figures 1-12 An adjustable-spacing precision corn planter includes a main frame 1, a channel opening structure, a planting structure, an irrigation structure, and a transmission and control system. The main frame 1 serves as the support structure for the entire device and is fixedly connected to agricultural machinery via bolts. The agricultural machinery drives the main frame 1 to move, thus enabling the device to operate in the field. The main frame 1 is made of high-strength metal materials, such as Q235 steel, to ensure its stability and load-bearing capacity during operation. One side of the main frame 1 is connected to the agricultural machinery via a connecting steel frame and bolts. During connection, bolts of appropriate specifications are used to tightly fix the main frame 1 to the corresponding parts of the agricultural machinery, ensuring that the main frame 1 will not shake or loosen during operation.

[0020] Reference Figure 3 and Figure 4The canal-opening structure is located at the bottom of the main frame 1 and mainly includes multiple vertical rods 2, a lifting frame 3, threaded rods 4, and V-shaped deflectors 5. Multiple vertical rods 2 are evenly fixed to the bottom of the main frame 1. The vertical rods 2 are made of round steel, and the same lifting frame 3 is slidably fitted onto the outer wall of each vertical rod 2. The lifting frame 3 is welded from steel plates and has a rectangular frame structure. Its dimensions are designed according to the distribution of the vertical rods 2 and the canal-opening depth requirements. Multiple V-shaped deflectors 5 are fixed to the bottom end of the lifting frame 3. The V-shaped deflectors 5 are made of wear-resistant steel plates, with a V-angle between 90° and 120°, and a length between 15-20cm depending on the canal-opening width requirements. Threaded rods 4, made of high-strength alloy steel, are threaded through the inner core of the main frame 1. The threaded rods 4 rotate on top of the lifting frame 3. By rotating the threaded rods 4, the lifting frame 3 can be driven to move up and down along the vertical rods 2, thereby controlling the canal-opening depth of the V-shaped deflectors 5, facilitating the later placement of seeds into the soil.

[0021] Before operation, the height of the lifting frame 3 is adjusted by rotating the threaded rod 4 according to the soil hardness and sowing depth requirements, thereby determining the trenching depth of the V-shaped auger 5. For example, when the soil is hard, the height of the lifting frame 3 is appropriately lowered so that the V-shaped auger 5 can penetrate deep into the soil to dig suitable trenches; when the soil is soft, the height of the lifting frame 3 can be appropriately raised.

[0022] Reference Figure 3 , Figure 5 , Figure 7 and Figure 8 The sowing structure includes a circular shell 6, a feeding disc 14, a feeding tube 11, a hopper 13, a fixing frame 12, and a sowing tube 16. Multiple sowing structures are arranged on one side of the main frame 1. The circular shell 6 is made of high-strength plastic or metal materials, such as polypropylene or aluminum alloy, and its diameter is selected according to the sowing quantity and the size of the feeding disc 14. A feeding tube 11 is fixed to the top of the circular shell 6, and the feeding tube 11 is made of steel pipe. A hopper 13 is fixed to the top of the feeding tube 11. The hopper 13 is welded from steel plate and is funnel-shaped, wider at the top and narrower at the bottom, used to store seeds. A fixing frame 12, made of angle steel, is fixedly fitted onto the outer wall of the feeding tube 11 and is fixedly connected to the top of the main frame 1 to support the circular shell 6.

[0023] Reference Figure 8The feeding disc 14 is rotatably mounted inside the circular housing 6. The outer wall of the feeding disc 14 has multiple feeding troughs 15, each semi-circular in shape, with a diameter designed according to the seed size, generally slightly larger than the maximum seed diameter. A gap of 1-2 mm is provided between the outer wall of the feeding disc 14 and the inner wall of the circular housing 6 to allow larger seeds to pass. A sowing tube 16 is fixed to the bottom of the circular housing 6, corresponding to the position of the V-shaped feeding plate 5. The diameter of the sowing tube 16 matches the size of the feeding troughs 15, and it is used to discharge seeds into the channels dug by the V-shaped feeding plate 5.

[0024] During operation, seeds enter the feed pipe 11 from the hopper 13. When the feeding disc 14 rotates, the feed trough 15 on the feeding disc 14 aligns with the feed pipe 11, and the seeds in the feed pipe 11 fall into the feed trough 15. As the feeding disc 14 rotates, the seeds are conveyed downwards along the gap between the feeding disc 14 and the circular shell 6. Because the gap between the outer wall of the feeding disc 14 and the inner wall of the circular shell 6 is small, the feeding disc 14 can only move the seeds when they fall into the feed trough 15, until the seeds are discharged downwards from the sowing tube 16, completing the sowing operation.

[0025] Reference Figure 2 and Figure 5 Multiple connecting rods 8 are fixed between two adjacent circular shells 6. The connecting rods 8 are also made of Q235 steel, and the outer walls of the multiple connecting rods 8 are fixedly fitted with the same fixing ring I9. An inclined plate 10 is fixed to one side of the fixing ring I9. The inclined plate 10 is made of steel plate and is fixedly connected to one side of the main frame 1 to support the circular shells 6 and enhance the stability of the sowing structure.

[0026] Reference Figure 2 , Figure 8 and Figure 9 The transmission and control system mainly includes a drive shaft 7, anti-slip wheels 19, rotating rods 18, and a gearbox 20. The drive shaft 7 rotatably passes through multiple circular housings 6. The drive shaft 7 is made of high-strength alloy steel and has a diameter between 10-14 mm. Multiple feeding discs 14 are fixedly sleeved on the outer wall of the drive shaft 7, and the rotation of the drive shaft 7 drives the feeding discs 14 to rotate synchronously. Rotating rods 18, made of round steel, are fixed to the sides of two anti-slip wheels 19 that are close to each other. The sides of the two rotating rods 18 that are close to each other are rotatably connected to the corresponding circular housings 6. A gearbox 20 is located above one of the rotating rods 18 and is fixed to one side of the corresponding circular housing 6. The output shaft of the gearbox 20 is connected to the outer wall of the rotating rod 18 via a synchronous pulley and synchronous belt. The input shaft of the gearbox 20 is fixedly connected to one end of the drive shaft 7.

[0027] The speed ratio between the rotating rod 18 and the drive shaft 7 can be adjusted by the gearbox 20. During operation, the anti-slip wheel 19 drives the drive shaft 7 and the feeding disc 14 to rotate via the synchronous belt and synchronous pulley connection between the rotating rod 18 and the gearbox 20. The operator can control the speed of the feeding disc 14 by adjusting the speed ratio of the gearbox 20 according to the corn variety and growth requirements. During the uniform movement of the sowing device, controlling the speed of the feeding disc 14 can control the sowing spacing of the seeds, allowing the corn to grow healthily at a suitable distance. For example, for corn varieties that require more growing space, the speed of the feeding disc 14 can be appropriately reduced to increase the sowing spacing; for varieties that require less growing space, the speed of the feeding disc 14 can be appropriately increased to decrease the sowing spacing.

[0028] Reference Figure 8 , Figure 10 , Figure 11 , Figure 12 and Figure 14 The watering structure is mounted on the circular shell 6 and is used for watering before and after soil covering. It mainly includes watering pipe I 22, watering pipe II 23, a control structure, and a pushing device. The watering structure also includes an annular groove 30 on the inner wall of one side of the circular shell 6. Multiple hemispheres 29 arranged in a ring are fixed to one side of the feeding disc 14, extending into the annular groove 30. An angle exists between the hemispheres 29 and the feeding trough 15, ranging from 5° to 8°, for watering a few seconds after the feeding trough 15 and the seeding pipe 16 have completed sowing. A crossbar 24, made of round steel, is fixed to one side of the circular shell 6. A sliding plate 25, made of steel plate, is slidably fitted onto the outer wall of the crossbar 24, and its dimensions are designed according to the diameter and sliding stroke of the crossbar 24. A tension spring 27 is fixed between the circular housing 6 and the sliding plate 25 via a spring seat. The parameters of the tension spring 27 are: wire diameter between 0.8-1.2 mm, outer diameter between 8-12 mm, free length between 50-80 mm, and initial tension between 5-10 N. The tension spring 27 is sleeved on the outer wall of the crossbar 24. A push rod 28 is fixed to the side of the sliding plate 25 near the circular housing 6. The push rod 28 is made of round steel with a diameter between 4-6 mm. The push rod 28 extends into the annular groove 30 and cooperates with the hemisphere 29. It is used to push the push rod 28 outward through the hemisphere 29 when the feed plate 14 rotates. A bellows cover 26 is fixed between the sliding plate 25 and the circular housing 6 to protect the tension spring 27. The bellows cover 26 is made of rubber or plastic and has good flexibility and protective performance.

[0029] Reference Figure 7 , Figure 10 and Figure 11A movable plate 31 is slidably connected to the bottom end of the sliding plate 25. The movable plate 31 is made of steel plate, and its dimensions are designed according to the dimensions of the sliding plate 25 and the connection requirements. The movable plate 31 is slidably engaged with the soil-buried plate 17. Two L-shaped rods 32 are fixed on the side of the movable plate 31 near the circular shell 6. The L-shaped rods 32 are made of angle steel, and their dimensions are designed according to the requirements of the control structure inside the watering pipe.

[0030] Reference Figure 8 , Figures 10-12 Both watering pipes I22 and II23 are equipped with control structures. These control structures include a fixed cylinder 33, made of steel pipe, fixed to the side of watering pipe I22 near the moving plate 31. An insert rod 36, made of round steel, slides through the fixed cylinder 33. One end of the insert rod 36 extends slidably into watering pipe I22 and is fixed with a sealing ball 37, whose diameter is slightly larger than the inner diameter of watering pipe I22, for sealing watering pipe I22. A fixing ring II 34, whose inner diameter matches the outer diameter of the insert rod 36, is slidably connected to the fixed cylinder 33 and fixedly sleeved on the outer wall of the insert rod 36. A spring 35 is fixed to the side of the fixing ring II 34 away from the watering pipe I 22 via a spring seat. The parameters of the spring 35 are: wire diameter between 0.6-1.0 mm, outer diameter between 6-10 mm, free length between 30-50 mm, and initial pressure between 3-8 N. The end of the spring 35 away from the fixing ring II 34 is fixedly connected to the inner wall of one side of the fixing cylinder 33 via the spring seat. The spring 35 is sleeved on the outer wall of the insertion rod 36, and is used to drive the insertion rod 36 to extend into the watering pipe I 22 to seal it. The end of the insertion rod 36 away from the watering pipe I 22 extends to one side of the fixing cylinder 33. The insertion rod 36 has an insertion hole 38. An L-shaped rod 32 cooperates with the insertion hole 38, which is used to move the moving plate 31 to move the insertion rod 36 outward via the L-shaped rod 32 to release the seal on the watering pipe I 22. The control structure of the watering pipe II 23 is the same as that of the watering pipe I 22.

[0031] Reference Figure 6 and Figure 8 Multiple circular shells 6 are fixed to one side by a common liquid storage tube 21 via clamps. The liquid storage tube 21 is made of plastic or metal, and its diameter is selected according to the watering requirements, generally between 5-8 cm. Multiple watering pipes I 22 and II 23 are connected to the liquid storage tube 21 via flexible hoses. The flexible hoses are made of rubber and have a certain degree of flexibility and corrosion resistance.

[0032] When the feeding disc 14 rotates to complete the sowing, due to the certain angle (5°-8°) between the trough 15 and the hemisphere 29, a few seconds after sowing, the hemisphere 29 adjacent to the trough 15 pushes the push rod 28 and the sliding plate 25 to move outward. The sliding plate 25 drives the insertion rod 36 and the sealing ball 37 in the watering pipe I 22 to move synchronously through the moving plate 31 and the L-shaped rod 32. The sealing ball 37 releases the seal on the watering pipe I 22, and at this time, the water in the liquid storage pipe 21 sprays downward through the watering pipe I 22, completing the watering operation after seed sowing. Afterward, the soil covering plate 17 can carry out the soil covering operation to complete the seed covering work and prevent moisture loss.

[0033] In another embodiment: Refer to Figure 6 and Figure 13 The device also includes an L-shaped plate 39, one side of which is fixedly connected to an adjacent circular shell 6. The L-shaped plate 39 is made of steel plate. A connecting plate 40, also made of steel plate, is slidably connected to the top of one side of the L-shaped plate 39. One end of a plurality of movable plates 31 is slidably connected to one side of the connecting plate 40 via T-shaped blocks and T-slots to ensure that the movable plates 31 can move synchronously with the connecting plate 40. A magnetic repulsion module 41 and a magnetic attraction module 42 are provided between the side of the connecting plate 40 away from the movable plates 31 and the L-shaped plate 39. Both the magnetic repulsion module 41 and the magnetic attraction module 42 consist of two electromagnets, which are respectively fixed to the sides of the connecting plate 40 and the L-shaped plate 39 that are close to each other. When the two electromagnets in the magnetic repulsion module 41 are energized, they generate magnetic repulsion. When the two electromagnets in the magnetic attraction module 42 are energized, they generate magnetic attraction. These are used to control the left and right movement of the connecting plate 40 and multiple moving plates 31, thereby controlling the watering pipe I 22 or watering pipe II 23 to perform watering operations.

[0034] The electromagnet can be a miniature high-power electromagnet from Yueqing Maijia Electric Co., Ltd., and is not limited here. Models and specifications include DC push-pull electromagnets (12V / 24V) and circular suction cup electromagnets (P25 / 20, P30 / 25, etc.).

[0035] Magnetic characteristics: Push-pull electromagnet: suction force of over 125N, long stroke, suitable for scenarios requiring linear motion; Circular suction cup electromagnet: suction force starting from 10kg, demagnetization design when energized, easy to release quickly.

[0036] Reference Figure 13 A U-shaped cover 43 is fixed on the side of the connecting plate 40 away from the moving plate 31. The U-shaped cover 43 is made of plastic or metal and extends into the L-shaped plate 39. It is used to protect the magnetic repulsion module 41 and the magnetic attraction module 42 and prevent external factors from damaging the electromagnet.

[0037] During operation, the operator can energize the electromagnets in the magnetic attraction module 42 or the magnetic repulsion module 41 according to the watering needs. For example, when watering is required before covering with soil, the two electromagnets in the magnetic attraction module 42 are energized, and the resulting magnetic attraction can drive the moving plate 31 towards the L-shaped plate 39 through the connecting plate 40. At this time, one of the L-shaped rods 32 on one side of the moving plate 31 moves out of the insertion hole 38 in the watering pipe II 23, and the other L-shaped rod 32 is inserted into the insertion hole 38 in the watering pipe I 22, completing the connection between the moving plate 31 and the insertion rod 36 in the watering pipe I 22, which facilitates the subsequent watering operation of the watering pipe I 22. Conversely, when watering is required after covering with soil, the electromagnets in the magnetic repulsion module 41 are energized, causing the moving plate 31 to move in the opposite direction, realizing the watering operation of the watering pipe II 23.

[0038] A furrowing method for a precision corn seeding device with adjustable plant spacing includes the following steps: S1. Connect the main frame 1 to the agricultural machinery (which can be a tractor) with bolts. The agricultural machinery pulls the seeding device to the farmland. Before use, the lifting frame 3 is driven to move down by rotating the threaded rod 4 to control the depth of the V-shaped plate 5 to open the channel, so that the seeds can be put into the soil later. S2. Determine the soil moisture content. When the soil is dry and the moisture content is low, watering is required after sowing and before covering with soil. Specifically, when the two electromagnets in the magnetic attraction module 42 are energized, the resulting magnetic force can drive the moving plate 31 towards the L-shaped plate 39 via the connecting plate 40. At this time, one of the L-shaped rods 32 on one side of the moving plate 31 moves out of the insertion hole 38 in the watering pipe II 23, and the other L-shaped rod 32 is inserted into the insertion hole 38 in the watering pipe I 22, completing the connection between the moving plate 31 and the insertion rod 36 in the watering pipe I 22. Afterwards, agricultural machinery drives the sowing device to move in the field, with anti-slip wheels... Simultaneously rotating, the anti-slip wheel 19 drives the transmission shaft 7 and the feeding disc 14 to rotate through the synchronous belt and synchronous pulley connection between the rotating rod 18 and the gearbox 20. After the material trough 15 on the feeding disc 14 is aligned with the material tube 11, the seeds in the material tube 11 fall into the material trough 15. During the rotation of the feeding disc 14, the seeds can be conveyed downward along the gap between the feeding disc 14 and the circular shell 6. Since the gap between the outer wall of the feeding disc 14 and the inner wall of the circular shell 6 is small, the feeding disc 14 can only drive the seeds to move when the seeds fall into the material trough 15, until the seeds are discharged downward from the sowing tube 16, completing the sowing operation. S3. When the feeding disc 14 rotates to complete the sowing, there is a certain angle (5°-8°) between the trough 15 and the hemisphere 29. Therefore, a few seconds after sowing, the hemisphere 29 adjacent to the trough 15 pushes the push rod 28 and the sliding plate 25 to move outward. The sliding plate 25 drives the insertion rod 36 and the sealing ball 37 in the watering pipe I 22 to move synchronously through the moving plate 31 and the L-shaped rod 32. The sealing ball 37 releases the blockage of the watering pipe I 22. At this time, the water in the liquid storage pipe 21 sprays downward through the watering pipe I 22 to complete the watering operation after seed sowing. After that, the soil covering plate 17 can carry out the soil covering operation to complete the soil covering work of the seeds and avoid water loss. S4. When sowing in soil with moderate moisture content, the two electromagnets in the magnetic repulsion module 41 are energized. The repulsive force generated by the two electromagnets pushes the connecting plate 40 to move away from the L-shaped plate 39. The moving plate 31 is connected to the insertion rod 36 in the watering pipe II 23 through the L-shaped rod 32 on one side. Therefore, a few seconds after sowing, after the soil covering plate 17 completes the soil covering operation, the watering pipe II 23 performs watering operation, so that the water slowly penetrates and avoids excessive water affecting the development of seeds. S5. In addition, the speed ratio between the transmission shaft 7 and the rotating rod 18 can be adjusted by the gearbox 20, thereby controlling the speed of the feeding disc 14. In this way, the speed of the feeding disc 14 can be controlled during the uniform movement of the sowing device, and the sowing spacing of the seeds can be controlled so that the corn can grow healthily at a suitable distance.

[0039] However, as is well known to those skilled in the art, the working principle and wiring method of the gearbox 20 are commonplace and are all conventional methods or common knowledge, so they will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0040] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0041] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A precision corn seeding device with adjustable plant spacing, characterized in that, include: Main frame (1); The channel structure is located at the bottom of the main frame (1), and the channel structure includes multiple V-shaped baffles (5). Multiple seeding structures are set on one side of the main frame (1). The seeding structure includes a circular shell (6) and a feeding disc (14) rotatably connected in the circular shell (6). The feeding disc (14) has multiple feeding troughs (15) for receiving seedlings on its outer periphery. The bottom of the circular shell (6) is provided with a seeding tube (16). A soil-burying plate (17) is fixed on one side of the circular shell (6). The transmission mechanism includes a transmission shaft (7) and a non-slip wheel (19). The transmission shaft (7) rotates through multiple circular housings (6) and is fixedly connected to multiple feeding discs (14). The non-slip wheel (19) is connected to the transmission shaft (7) via a gearbox (20). The gearbox (20) adjusts the speed ratio between the transmission shaft (7) and the non-slip wheel (19) to control the speed of the feeding disc (14) and thus adjust the sowing spacing. Multiple watering structures are set on the circular shell (6). The watering structures include watering pipe I (22) and watering pipe II (23). Watering pipe I (22) and watering pipe II (23) are used for watering before and after covering with soil, respectively. The feeding disc (14) has multiple hemispheres (29) on one side, and the circular shell (6) has an annular groove (30) that makes way for the hemispheres (29); the circular shell (6) has a sliding push rod (28) inside.

2. The adjustable-spacing precision corn seeding device according to claim 1, characterized in that, The channel structure also includes multiple vertical rods (2) fixed to the bottom of the main frame (1), a lifting frame (3) slidably sleeved outside the vertical rods (2), and a threaded rod (4) threaded through the main frame (1). The bottom end of the threaded rod (4) is rotatably connected to the top of the lifting frame (3), and multiple V-shaped baffles (5) are fixed to the bottom end of the lifting frame (3).

3. The adjustable-spacing precision corn seeding device according to claim 2, characterized in that, The seeding structure also includes a feed pipe (11) fixed to the top of the circular shell (6) and a hopper (13) fixed to the top of the feed pipe (11). The feed pipe (11) is fixedly connected to the main frame (1) through a fixing frame (12).

4. The adjustable-spacing precision corn seeding device according to claim 3, characterized in that, A tension spring (27) is connected between the sliding plate (25) and the circular shell (6). A movable plate (31) is slidably connected to the bottom end of the sliding plate (25). The movable plate (31) is slidably engaged with the soil-buried plate (17). Two L-shaped rods (32) are fixed on the side of the movable plate (31) close to the circular shell (6).

5. The adjustable-spacing precision corn seeding device according to claim 4, characterized in that, The control mechanism of the watering structure includes a fixed cylinder (33), a plug rod (36) slidably disposed in the fixed cylinder (33), and a spring (35) sleeved on the plug rod (36). One end of each of the two plug rods (36) extends into the watering pipe I (22) and the watering pipe II (23) respectively, and both are fixed with a sealing ball (37). The L-shaped rod (32) cooperates with the insertion hole (38) at the end of the plug rod (36).

6. The adjustable-spacing precision corn seeding device according to claim 5, characterized in that, There is an angle of 5° to 8° between the hemisphere (29) and the trough (15).

7. A precision corn seeding device with adjustable plant spacing according to claim 6, characterized in that, It also includes an L-shaped plate (39), a connecting plate (40) slidably connected to the L-shaped plate (39), and a magnetic repulsion module (41) and a magnetic attraction module (42) disposed between the connecting plate (40) and the L-shaped plate (39). All of the moving plates (31) are slidably connected to the connecting plate (40). By controlling the magnetic repulsion module (41) and the magnetic attraction module (42) to alternately turn on and off power, the connecting plate (40) drives all the moving plates (31) to move synchronously, so as to switch the engagement of the L-shaped rod (32) with the control mechanism of the watering pipe I (22) or the watering pipe II (23), thereby selecting the watering mode before or after covering the soil.

8. The adjustable-spacing precision corn seeding device according to claim 7, characterized in that, Two adjacent circular shells (6) are fixedly connected by multiple connecting rods (8). The outer walls of the multiple connecting rods (8) are fitted with a fixing ring I (9). The fixing ring I (9) is fixedly connected to the main frame (1) by an inclined plate (10).

9. The adjustable-spacing precision corn seeding device according to claim 1, characterized in that, One side of each of the multiple circular shells (6) is fixed with a liquid storage pipe (21) by clamps. The watering pipe I (22) and watering pipe II (23) are connected to the liquid storage pipe (21) by hoses.

10. The adjustable-spacing precision corn seeding device according to claim 1, characterized in that, A gap is provided between the outer wall of the feeding disc (14) and the inner wall of the circular shell (6) to prevent seeds from getting stuck.

Images