A corn planter

Abstract

A corn seeding machine, by setting seed metering device, point seeding device and lifting transmission device, and the moving tube of the point seeding device is connected with the lifting transmission device through the connecting rod, and the moving tube is synchronous with the lifting transmission device under the driving of the connecting rod and drives the duckbill device to open and close, the setting of the single opening slide seat at the lower end of the point seeding device can assist the duckbill device to open and close seeding, realizes the simultaneous seeding and seeding, the speed of the stepping motor is adjustable and is fixedly connected with the point seeding device, controls the stroke of the point seeding device, can effectively guarantee the seeding depth and precision; The setting of the single opening slide seat and the duckbill can avoid the duckbill from taking the seed out of the soil after each seeding; The soil covering wheel can be beneficial to the soil covering work after seeding; Four shock absorbers can reduce the vibration of the whole seeding machine, increase the stability of the seeding operation.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of seeding, and particularly relates to a corn seeding machine. BACKGROUND

[0002] At present, there are many mechanical seeding machines, but few are suitable for small-scale seeding machines in small areas, especially practical corn seeding machines, and the following problems exist:

[0003] (1) The driving mode is hand-push type, and the main problem of the hand-push type driving mode is that the walking speed and pace of each user are inconsistent, and the operation error is too large, which finally leads to inconsistent seeding plant spacing and row spacing.

[0004] (2) In the existing hand-push type seeding machine, the user walks while pushing the seeding machine from the rear side of the seeding machine, and even if a press roller is arranged at the rear of the seeding machine, the user's weight and pace are different, and when the press roller has pressed the soil, the treading of the operator will cause the pressed soil to become loose or more compact, thereby affecting the seed germination rate.

[0005] (3) The depth of the seeding nozzle on the seeding disc into the soil is uncontrollable, thereby causing the seeding depth to be unable to change with different soil water content.

[0006] The invention disclosed in Patent No. CN116326293A discloses a corn seeding machine with adjustable grain outlet, and the technical scheme points thereof include a grain outlet assembly provided with a connecting rod, the connecting rod is fixedly connected to the top of the top plate, the axis of the top material cylinder is rotationally connected with the connecting rod, the outer surface of the top material cylinder is rotationally connected with a storage cylinder, and a cavity is formed between the outer surface of the top material cylinder and the inner wall of the storage cylinder, the outer surface of the storage cylinder is rotationally connected with a discharge cylinder, the side of the discharge cylinder close to the top plate is fixedly connected with a feeding pipe, and the end of the feeding pipe close to the top plate is fixedly connected with a conical slope feeding pipe; the main purpose is to prevent corn seeds from accumulating at the pipe opening of the feeding pipe and causing pipe blockage by setting the conical slope feeding pipe, and the connecting cylinder is arranged between the plurality of storage cylinders, a plurality of corn seeds are discharged at a time, and the corn germination rate is improved; however, the structure design of the discharge cylinder is complex.

[0007] The utility model disclosed in Patent No. CN219499950U discloses a soybean and corn seeding machine, which is provided with a main shaft, a roller, a distributing wheel and a discharge pipe. During use, the rotating roller cooperates with the main shaft to drive the distributing wheel to rotate synchronously, the rotating distributing wheel intermittently drives the seeds stored in the bottom shell to move into the discharge pipe, the seeds in the discharge pipe are discharged by driving the discharge screw to rotate through the first driving motor, and the discharge speed can be adjusted by adjusting the rotating speed of the first driving motor and the discharge screw, thereby improving the use convenience. However, the above structure still needs to be improved in the seeding structure of the discharge cylinder, and the controllability of the seeding nozzle into the soil needs to be further improved. SUMMARY

[0008] The corn seeding machine aims at solving the problems of the prior art and realizes seed sowing and seeding simultaneously, and effectively guarantees the seeding depth and precision through controlling the stroke of the point seeder.

[0009] To solve the above technical problems, the technical scheme adopted by the present application is:

[0010] A corn seeding machine comprises a walking device and a seed sowing device, and the walking device walks under the action of a driving motor; the seed sowing device comprises a seed sower, a point seeder and a lifting transmission device,

[0011] The point seeder comprises a moving pipe arranged in the vertical direction and a duckbill device arranged at the bottom of the moving pipe, the moving pipe is connected with the seed sower, and the moving pipe is connected with the lifting transmission device through the connecting rod fixedly arranged at the bottom, and the moving pipe is lifted synchronously with the lifting transmission device under the driving of the connecting rod;

[0012] The duckbill device comprises a movable duckbill and a fixed duckbill, and the fixed duckbill is fixedly connected with the bottom of the moving pipe and is lifted synchronously with the moving pipe to open and close the movable duckbill.

[0013] The point seeder further comprises a sliding seat device arranged on the walking device,

[0014] The sliding seat device comprises a sliding seat support and a single-opening sliding seat,

[0015] The single-opening sliding seat is movably arranged in the guide groove arranged in the vertical direction of the sliding seat support, a guide groove opening is arranged at the top of the guide groove, and the single-opening sliding seat moves up and down along the guide groove under the driving of the movable duckbill;

[0016] The single-opening sliding seat comprises a base, a torsional spring and a movable block arranged on the base, both ends of the base are provided with shaft extension ends for movement in the guide groove, and the movable block reversibly rotates the torsional spring arranged at the back side thereof;

[0017] The torsional spring is arranged in the same direction as the movable block, one end of the torsional spring is fixedly arranged on the base, and the other end is fixedly arranged on the movable block;

[0018] A clamping groove is further arranged on the movable block for clamping the extension end of the movable duckbill.

[0019] The extension end is fixedly arranged at the top of the movable duckbill, and when the extension end moves downward to the single-opening sliding seat along with the movable duckbill, the outer edge of the extension end is clamped in the clamping groove and drives the movable duckbill to open under the blocking of the movable block;

[0020] When the single-opening sliding seat moves upward to the guide groove opening along with the movable duckbill, the extension end lifts the movable block and drives the torsional spring at the back side to reversibly rotate and extrude, and the extension end is separated from the guide groove opening and synchronously rises with the fixed duckbill.

[0021] The lifting transmission device comprises vertically arranged guide rails and a sliding table in sliding cooperation with the guide rails, and the sliding table is lifted along the vertically arranged screw rod under the control of the arranged stepping motor, and a connecting rod is further extended and fixed outside the sliding table, and the connecting rod is fixedly connected with the moving pipe.

[0022] The seed sowing device comprises detachably connected inner and outer shells, a fixed disc and a movable disc arranged in the cavity formed by the two shells, the fixed disc is fixedly connected with the inner shell and is provided with a seed outlet, and the movable disc is coaxially arranged above the fixed disc and is movably connected with the fixed disc,

[0023] and the movable disc is synchronously rotatably connected with the rotating pipe through a connecting shaft;

[0024] At least one seed inlet hole is arranged on the movable disc, and the entering seeds fall along the gap between the outer shell and the fixed disc.

[0025] The inner and outer shells are connected through threads, and a baffle for filtering seeds is fixedly arranged on the inner shell.

[0026] The seed inlet hole is provided with three.

[0027] The walking device is further provided with shock absorbers, and the shock absorbers are arranged at the front and rear ends of the walking device.

[0028] The front end of the walking device is provided with a walking wheel, and the rear end is provided with a covering wheel, and the walking wheel is controlled to walk through the arranged driving motor.

[0029] The shock absorbers are four, and two are arranged at the front and rear ends of the walking device.

[0030] The beneficial effects of the present application are:

[0031] (1) The corn planter is provided with a seed sowing device, a point sowing device and a lifting transmission device, the moving pipe of the point sowing device is connected with the lifting transmission device through a connecting rod, the moving pipe is lifted synchronously with the lifting transmission device under the driving of the connecting rod and drives the duckbill device to open and close, the single-opening sliding seat arranged at the lower end of the point sowing device can assist the duckbill device to open and close for sowing, the seed sowing and sowing are simultaneously realized, the speed of the stepping motor is adjustable and is fixedly connected with the point sowing device, the stroke of the point sowing device is controlled, and the sowing depth and precision can be effectively ensured.

[0032] (2) The single-opening sliding seat and the duckbill can avoid the duckbill from taking the seeds out of the soil after each sowing; the covering wheel can be beneficial to the covering work after sowing; the four shock absorbers can reduce the vibration of the whole planter and increase the stability of the sowing operation.

[0033] (3) The walking device walks under the action of the driving motor, and the adjustment of the driving motor can realize the adjustment of various sowing densities. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 is a schematic diagram of the overall structure of the present application;

[0035] Figure 2 is a schematic diagram of the structure of the seed metering device;

[0036] Figure 3 is a schematic diagram of the structure of the seed plate;

[0037] Figure 4 is a schematic diagram of the structure of the seed plate;

[0038] Figure 5 is a schematic diagram of the structure of the seed plate;

[0039] Figure 6 is a schematic diagram of the structure of the seed plate; Figure 5

[0040] Figure 7 is a schematic diagram of the structure of the seed plate;

[0041] Figure 8 is a schematic diagram of the structure of the seed plate;

[0042] Figure 9 is a schematic diagram of the structure of the seed plate;

[0043] Figure 10 is a schematic diagram of the structure of the seed plate; Figure 1

[0044] Figure 11 is a schematic diagram of the structure of the seed plate; Figure 2

[0045] Figure 12 is a schematic diagram of the structure of the seed plate; Figure 1

[0046] Figure 13 is a schematic diagram of the structure of the seed plate; Figure 2

[0047] Figure 14 is a schematic diagram of the structure of the seed plate; Figure 3

[0048] Figure 15 is a schematic diagram of the structure of the seed plate. Figure 4 DETAILED DESCRIPTION

[0049] The embodiments of the present application will be described in detail by the following specific examples, and other advantages and effects of the present application can be easily understood by those skilled in the art from the contents disclosed in the specification.

[0050] The present application provides a corn planter, as shown in Figures 1 to 15 .​​​​​​​

[0051] The corn seeding machine comprises a walking device and a seed sowing device, and the walking device walks under the action of a driving motor; the seed sowing device comprises a seed sowing device 6, a point sowing device 9 and a lifting transmission device, the point sowing device 9 comprises a moving tube 91 arranged vertically and a duckbill device arranged at the bottom of the moving tube 91, the moving tube 91 is connected with the seed sowing device 6, and the moving tube 91 is connected with the lifting transmission device through a connecting rod fixedly arranged at the bottom and is lifted synchronously with the lifting transmission device under the driving of the connecting rod; the duckbill device comprises a movable duckbill 93 and a fixed duckbill 92, the fixed duckbill 92 is fixedly connected with the bottom of the moving tube 91 and is lifted synchronously with the moving tube 91 to open and close the movable duckbill 93. In the embodiment, the movable duckbill 93 and the fixed duckbill 92 are connected through a spring 94, one end of the spring is welded on the movable duckbill, the other end is fixedly clamped in a groove of the fixed duckbill, the spring provides elastic force to press the fixed duckbill and the movable duckbill, and the duckbill is always in a closed state.

[0052] The point sowing device 9 further comprises a sliding seat device arranged on the walking device, the sliding seat device comprises a sliding seat support 18 and a single-opening sliding seat 10, the single-opening sliding seat 10 is movably arranged in a guide groove 181 vertically arranged in the sliding seat support 18, a guide groove opening 182 is arranged at the top of the guide groove, and the single-opening sliding seat 10 moves up and down along the guide groove under the driving of the movable duckbill.

[0053] The single-opening sliding seat 10 comprises a base 101, a torsion spring 102 and a movable block 103 arranged on the base, both ends of the base 101 are provided with shaft extension ends 104 for movement in the guide groove, and the movable block 103 can reversely rotate to press the torsion spring 102 arranged at the back side thereof; the torsion spring 102 is arranged in the same direction as the movable block 103, one end of the torsion spring 102 is fixedly arranged on the base 101, and the other end is fixedly arranged on the movable block 103; a clamping groove 1031 for clamping the extension end of the movable duckbill is arranged on the movable block 103.

[0054] The top of the movable duckbill is fixedly provided with an extension end 931, and when the extension end 931 moves downward with the movable duckbill 93 to the single-opening sliding seat 10, the outer edge of the extension end 931 is clamped in the clamping groove 1031 and drives the movable duckbill 93 to open under the blocking of the movable block 103.

[0055] When the single-opening sliding seat 10 moves upward with the movable duckbill 93 to the guide groove opening, the extension end 931 lifts the movable block 103 and drives it to reversely rotate to press the torsion spring 102 at the back side, and the extension end 931 is separated from the guide groove opening and rises synchronously with the fixed duckbill.

[0056] The lifting transmission device comprises a guide rail 8 arranged vertically and a sliding table 7 in sliding cooperation with the guide rail 8, the sliding table 7 is lifted and lowered under the control of a stepping motor 4 arranged on the sliding table 7 and rotates along a screw rod 17 arranged vertically, and a connecting rod is fixedly arranged on the outer side of the sliding table 7 and is fixedly connected with the moving tube 91.

[0057] The seed sowing device 6 comprises an inner shell 61 and an outer shell 65 connected detachably, a fixed disc 64 and a moving disc 63 placed in the cavity formed by the two, the fixed disc 64 is fixedly connected with the inner shell 61 and is provided with a seed outlet 641, the moving disc 63 is coaxially arranged above the fixed disc 64 and is movably connected with the fixed disc 64, and the moving disc 63 is synchronously connected with the rotating tube through a connecting shaft; the moving disc 63 is provided with at least one seed inlet hole 631, and the seeds enter along the gap between the outer shell and the fixed disc. In this embodiment, three seed inlet holes are provided, and only one seed outlet 641 is provided; the inner shell and the outer shell are connected through threads, and the inner shell is fixedly provided with a baffle for filtering seeds.

[0058] The walking device is further provided with damping devices, and the damping devices are arranged at the front and rear ends of the walking device. In this embodiment, four damping devices are provided, and two damping devices are arranged at the front and rear ends of the walking device respectively. The front end of the walking device is provided with a walking wheel, and the walking wheel controls the walking through the driving motor. The rear end is provided with a covering wheel 13, and the covering wheel 13 is fixedly installed at the tail of the support to complete the covering work.

[0059] More specifically:

[0060] The corn planter uses a lithium battery 1 as a power source to drive three DC speed regulating motors, a stepping motor 4, two driving motors 2 to drive the front wheels 5 to rotate, a seed disc motor 3 to control the seed sowing device 6 to work to realize seed sowing, and a stepping motor 4 to drive the sliding block 7 to reciprocate on the guide rail 8 to drive the point sowing device 9 to work to realize sowing.

[0061] The seed disc motor 3 is fixedly installed on the inner shell 61 of the seed sowing device 6 through a motor base 12, the motor output shaft 62 is connected with the moving disc 63 through a key, during sowing, the moving disc 63 is located above the fixed disc 64 and is movably connected with the fixed disc 64, the fixed disc 64 is fixedly connected with the inner shell 61 of the seed sowing device 6 and is only provided with one seed outlet, the inner shell 61 of the seed sowing device is connected with the outer shell 65 through threads, and the baffle 66 is fixedly installed on the inner shell 61 of the seed sowing device to filter out excess seeds, the seeds are placed on the moving disc 63, the moving disc 63 rotates one circle to evenly drop three seeds, and the seeds fall along the gap between the outer shell 65 of the seed sowing device and the fixed disc 64.

[0062] The moving pipe 91 of the point sowing device 9 is placed in the lower hole of the outer shell 65 of the seed sowing device, an unthreaded groove is formed in the middle section, and the moving pipe 91 is fixedly connected with the sliding block 7 through screws, the lower part of the moving pipe 91 is welded with the duckbill fixed mouth 92, the duckbill fixed mouth 92 is hingedly connected with the moving mouth 93, the stepping motor 4 drives the screw rod 17 to rotate, thereby driving the sliding block 7 to move along the guide rail 8, driving the point sowing device 9 to synchronously reciprocate, and completing the duckbill 15 entering and coming out of the soil.

[0063] In the process of opening the duckbill by contacting the single opening slide, the moving duckbill always has a pressure on the outer wall of the single opening slide due to the elastic force of the duckbill spring, and this pressure continues until the duckbill separates from the single opening slide. Under the action of this pressure, the arc-shaped limiting block of the moving duckbill is clamped into the movable end slot of the single opening slide. In the process of downward seeding, the fixed duckbill 92 and the moving duckbill 93 move downward to contact the single opening slide 10 (as shown in Figure 10 ) and continue to move downward. Due to the reaction force of the top of the slide, the moving duckbill 93 rotates and separates from the fixed duckbill 92, realizing the opening of the duckbill device and seeding, as shown in Figure 11 . After seeding, the top extension end of the moving duckbill 93 is clamped into the clamping slot of the movable block, driving it to vertically rise along the guide slot, as shown in Figure 12 .

[0064] When rising, the fixed duckbill drives the moving duckbill to move upward, and the extension end of the moving duckbill is clamped in the clamping slot of the movable block, synchronously driving the single opening slide to move upward to the guide slot opening. The extension end lifts the movable block and drives it to rotate counterclockwise, extruding the torsional spring at the back. The lifting force exceeds the compression force of the torsional spring, and the movable block opens, as shown in Figure 13 . Further, the extension end is separated from the guide slot opening, and the fixed duckbill continues to rise. After the extension end of the moving duckbill slides out of the clamping slot of the movable block, it continues to rise due to the compression force of the spring. The moving duckbill rotates and closes back to the original position, as shown in Figure 14 . The single opening slide falls to the bottom of the guide slot of the slide bracket under the action of gravity, as shown in Figure 15 . Thus, the moving of the moving pipe 82 synchronously drives the entering and exiting of the fixed duckbill 83 and the moving duckbill 84.

[0065] When the point seeder 9 is lowered to the lowest position, the duckbill 15 will be pressed into the soil and opened due to the presence of the single opening slide 10, and three corn seeds will be sown. The single opening slide 10 is movably connected with the slide bracket 18, and the slide bracket 18 has guide slots on both sides. The cylindrical structures on both sides of the single opening slide 10 are placed in the guide slots, which can ensure that the single opening slide 10 slides up and down along the inside of the slide bracket 18. The slide bracket 18 is fixedly connected to the mounting frame 11 by screws, as shown in Figure 6 . With the reciprocating movement of the stepping motor 4 driving the slide block 7, this process is repeated until the seeding is completed. The soil covering wheel 13 is fixedly installed at the tail of the bracket to complete the soil covering work.

[0066] In this patent, the words "first", "second", etc. are used to limit parts. Those skilled in the art should know that the use of "first", "second" is only for the convenience of describing the invention and simplifying the description, and the above words do not have special meanings.

[0067] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principles of the present application. Various changes and improvements can be made to the present application without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the claimed application. The scope of protection of the present application is defined by the appended claims and equivalents thereof.

[0068] In the description of the present application, it should be understood that the terms "front", "back", "left", "right", "center", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the scope of protection of the present application.

Claims

1. A corn planter, comprising a traveling device and a seeding device, wherein the traveling device moves under the action of a drive motor; characterized in that: The seeding device includes a seeding device, a sowing device and a lifting transmission device. The seeding device includes a vertically arranged moving tube and a duckbill device arranged at the bottom of the moving tube. The moving tube is connected to the seeding device, and the moving tube is connected to the lifting transmission device through a connecting rod fixed at the bottom. The moving tube is driven by the connecting rod to rise and fall synchronously with the lifting transmission device. The duckbill device includes a hinged movable mouth and a fixed mouth, and the fixed mouth is fixedly connected to the bottom of the movable tube and rises and falls synchronously with the movable tube to open and close with the movable mouth; The jukebox also includes a slide device arranged on the walking device. The slide device includes a slide bracket and a single-open slide. The single-opening slide is movably arranged in a guide groove vertically provided on the slide bracket, and a guide groove opening is provided at the top of the guide groove. The single-opening slide moves up and down along the guide groove driven by the movable nozzle. The single-opening slide includes a base, a torsion spring, and a movable block disposed on the base. Both ends of the base are provided with shaft extensions for moving in the guide groove, and the movable block can rotate counterclockwise to tightly press the torsion spring disposed on its rear side. The torsion spring is arranged in the same direction as the movable block, and one end of the torsion spring is fixed on the base, and the other end is fixed on the movable block; The movable block is also provided with a slot for clamping the extended end of the movable nozzle.

2. A corn planter according to claim 1, characterized in that: An extension end is fixedly provided on the top of the movable mouth, and when the extension end moves downward with the movable mouth to the single-open slide seat, its outer edge is stuck in the slot and drives the movable mouth to open for sowing under the obstruction of the movable block; When the single-open slide moves upward to the guide slot mouth along with the movable nozzle, the extended end is lifted and drives the movable block to rotate counterclockwise to squeeze the torsion spring on the rear side, and the extended end is separated from the guide slot mouth and rises synchronously with the fixed nozzle.

3. The corn planter according to claim 1, characterized in that: The lifting transmission device includes a vertically arranged guide rail and a slide that slides with the guide rail. The slide rotates and rises along the vertically arranged lead screw under the control of a stepping motor. A connecting rod is also extended and fixed to the outside of the slide, and the connecting rod is fixedly connected to the moving tube.

4. The corn planter according to claim 1, characterized in that: The seed metering device comprises an inner shell and an outer shell which are detachably connected, and a fixed plate and a movable plate placed in a cavity formed by the inner shell and the outer shell. The fixed plate is fixedly connected to the inner shell and has a seed outlet, while the movable plate is coaxially rotatable above the fixed plate and is movably connected to the fixed plate. The moving disc is connected to the rotating tube for synchronous rotation via a connecting shaft; At least one seed entry hole is provided on the movable disk, and the seeds that enter fall along the gap between the outer shell and the fixed disk.

5. A corn planter according to claim 4, characterized in that: The inner shell and the outer shell are connected by threads, and a baffle for filtering seeds is fixed on the inner shell.

6. The corn planter according to claim 4, characterized in that: There are three seed inlet holes.

7. A corn planter according to any one of claims 1 to 6, characterized in that: The traveling device is also provided with a shock absorbing device, and the shock absorbing device is arranged at intervals at the front and rear ends of the traveling device.

8. The corn planter according to claim 7, characterized in that: The front end of the traveling device is provided with a traveling wheel, the rear end is provided with a soil covering wheel, and the traveling wheel is controlled to move by a driving motor.

9. The corn planter according to claim 7, characterized in that: The shock absorbing devices are provided in four, and two are provided at the front and rear ends of the walking device respectively.

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