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CN112292993B - Device for precisely sowing small granular seeds - Google Patents

Device for precisely sowing small granular seeds Download PDF

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Publication number
CN112292993B
CN112292993B CN202011178444.6A CN202011178444A CN112292993B CN 112292993 B CN112292993 B CN 112292993B CN 202011178444 A CN202011178444 A CN 202011178444A CN 112292993 B CN112292993 B CN 112292993B
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CN
China
Prior art keywords
seed
wheel
seeds
hole
sowing
Prior art date
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Application number
CN202011178444.6A
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Chinese (zh)
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CN112292993A (en
Inventor
霍倩
马志凯
赵树朋
苑光明
宋佳旭
郑颖
王磊
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Heibei Agricultural University
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Heibei Agricultural University
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Priority to CN202011178444.6A priority Critical patent/CN112292993B/en
Publication of CN112292993A publication Critical patent/CN112292993A/en
Application granted granted Critical
Publication of CN112292993B publication Critical patent/CN112292993B/en
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Classifications

    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01CPLANTING; SOWING; FERTILISING
    • A01C7/00Sowing
    • A01C7/08Broadcast seeders; Seeders depositing seeds in rows
    • A01C7/12Seeders with feeding wheels
    • A01C7/127Cell rollers, wheels, discs or belts
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01CPLANTING; SOWING; FERTILISING
    • A01C19/00Arrangements for driving working parts of fertilisers or seeders
    • A01C19/04Arrangements for driving working parts of fertilisers or seeders by a ground-engaging wheel
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01CPLANTING; SOWING; FERTILISING
    • A01C5/00Making or covering furrows or holes for sowing, planting or manuring
    • A01C5/06Machines for making or covering drills or furrows for sowing or planting
    • A01C5/062Devices for making drills or furrows
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01CPLANTING; SOWING; FERTILISING
    • A01C5/00Making or covering furrows or holes for sowing, planting or manuring
    • A01C5/06Machines for making or covering drills or furrows for sowing or planting
    • A01C5/062Devices for making drills or furrows
    • A01C5/064Devices for making drills or furrows with rotating tools
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01CPLANTING; SOWING; FERTILISING
    • A01C5/00Making or covering furrows or holes for sowing, planting or manuring
    • A01C5/06Machines for making or covering drills or furrows for sowing or planting
    • A01C5/066Devices for covering drills or furrows
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01CPLANTING; SOWING; FERTILISING
    • A01C7/00Sowing
    • A01C7/20Parts of seeders for conducting and depositing seed

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  • Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Sowing (AREA)

Abstract

The invention provides a device for precisely sowing small granular seeds, which comprises: the device comprises a frame, a seed metering device, a connecting shaft and a land wheel, wherein the middle position of one long side of the frame is connected with a vehicle, a rotating shaft is arranged in the seed metering device, external threads are arranged at two ends of the rotating shaft, a plurality of seed metering devices are respectively fixed on the frame by bolts, the rotating shaft is arranged on the seed metering device, external threads are arranged at two ends of the rotating shaft, an internal threaded hole matched with the external threads is arranged at one end of the connecting shaft, the small granular seed precise sowing device provided by the invention has the advantages of simple operation, low requirement on a user, simple structure and low production cost.

Description

Device for precisely sowing small granular seeds
Technical Field
The invention belongs to the technical field of agricultural machinery, and particularly relates to a device for precisely sowing small granular seeds.
Background
Sowing is an important link of crop cultivation, namely sowing materials into soil layers with proper depth and type according to a certain mode and quantity, and is also a primary link of agricultural operation. In the current generation of rapid technological development, various seeding machines replace the traditional manual and animal power labor operation, the current use automation is improved in seeding quality, but the automatic seeding machine has higher requirements on users, once misoperation is easy to damage the machine, the cost is higher, the popularization degree is narrower, and the requirements of users are difficult to meet.
Disclosure of Invention
The invention aims to provide a device for precisely sowing small granular seeds, which aims to solve the problems that an automatic sowing machine has high requirements on users and has high production cost.
In order to achieve the above purpose, the invention adopts the following technical scheme: the device for precisely sowing small granular seeds comprises:
the stand is detachably connected with the vehicle;
the seed metering device is provided with a rotating shaft, external threads are arranged at two ends of the rotating shaft, and the seed metering device is connected with the rack;
one end of the connecting shaft is provided with an internal threaded hole matched with the external thread;
the land wheel is connected with the connecting shaft and used for driving the inside of the seed sowing device to rotate for sowing.
Preferably, the seed metering device includes:
the shell is provided with a seed metering hole and a connecting hole, and is connected with the rack;
The hole wheel is arranged in the shell, the rotating shaft is arranged on the hole wheel, the rotating shaft penetrates through the connecting hole, and the connecting hole is connected with the rotating shaft in a matched manner through a bearing;
and the seed sowing pipe is connected with the seed sowing hole.
Preferably, the seed metering device further comprises a brush, the brush is arranged above the cellular wheel, a brush head of the brush is connected with the cellular wheel in a sliding mode, a brush handle is connected with the shell, and the brush is used for cleaning redundant seeds on the cellular wheel.
Preferably, the socket wheel comprises:
A first outer ring;
a second outer layer ring;
The middle layer is an outer ring wavy ring, the trough is a nest, the wave crest is inscribed with the outer ring surface of the first outer ring and the second outer ring, and the first outer ring, the second outer ring and the middle layer are connected through the rotating shaft.
Preferably, the seed metering device further comprises a leakage repairing device, the leakage repairing device is located above the hole wheel and arranged in front of the hairbrush, one end of the leakage repairing device rolls on the middle layer, the other end of the leakage repairing device is in sliding connection with the shell, and the leakage repairing device is used for replenishing seeds lacking in the hole.
Preferably, the leak repairing device comprises:
a roller in rolling connection with the intermediate layer;
The lower end of the square plate is provided with a connecting part matched with the roller, the connecting part is rotationally connected with the roller, and the square plate is in sliding connection with the shell;
The leakage repairing box is arranged in the shell and used for containing the seeds;
The leakage box baffle, one end with square board is connected, the other end with leak repairing box sliding connection, the leakage box baffle is used for controlling leak repairing box's switch.
Preferably, the seed metering device further comprises an elastic piece, wherein the elastic piece is arranged between the socket wheel and the shell, and the elastic piece is used for buffering the impact of the socket wheel on the shell.
Preferably, the elastic member is a rubber pad for reducing the rotational friction of the socket.
Preferably, the device also comprises a ditching device, wherein the ditching device is connected with the frame and arranged in front of the seed sowing device, and the ditching device is used for ditching the farmland to a certain depth.
Preferably, the seed sowing device further comprises a soil covering device, wherein the soil covering device is connected with the frame and is arranged behind the seed sowing device, and the soil covering device is used for covering the scattered soil into the ditch to cover the seeds.
The device for precisely sowing the small granular seeds has the beneficial effects that: compared with the prior art, the device for precisely sowing the small granular seeds comprises: the seeding device comprises a frame, a seeding device, a connecting shaft and a land wheel, wherein the frame is detachably connected with a vehicle, a clamping piece connected with a pin can be welded on the frame, the frame is driven by the vehicle through the clamping piece and the pin, and the frame is detachably connected with the vehicle through the connection of the connecting piece and a bolt in a matching manner, so long as the detachable connection of the frame and the vehicle can be realized, the seeding device is within the protection scope of the application. The seed metering device is provided with a rotating shaft, two ends of the rotating shaft are provided with external threads, the seed metering device is respectively fixed with the rack through bolt connection, the seed metering device is internally provided with the rotating shaft, two ends of the rotating shaft are provided with external threads, one end of the connecting shaft is provided with an internal threaded hole matched with the external threads, the land wheel is fixed on the connecting shaft through bolt connection, the internal threads of the rotating shaft are matched and connected with the external threads of the connecting shaft, so that the land wheel is fixedly connected with the seed metering device, when sowing, the vehicle moves to pull the land wheel to rotate, the land wheel rotates to drive the connecting shaft to rotate, the connecting shaft drives the rotating shaft to rotate, the rotating shaft enables the inside of the seed sowing device to rotate, the device for precisely sowing the small granular seeds has the advantages of simple structure, pure mechanical transmission, no automatic equipment and low production cost, and can ensure that seeds are discharged from a seed sowing device along the running direction of a vehicle; the device for precisely sowing the small granular seeds is simple to operate and low in requirement on users. In order to ensure that the device for precisely sowing the small granular seeds operates stably, the device for precisely sowing the small granular seeds is provided with at least two land wheels, the two land wheels are respectively connected with the two ends of the rotating shaft in a matched manner through internal threads and external threads, the whole structure is symmetrical, and the width between the adjacent land wheels is the ridge width.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments or the description of the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a device for precisely sowing small granular seeds according to an embodiment of the present invention;
Fig. 2 is a schematic structural diagram of a seed metering device according to an embodiment of the present invention;
FIG. 3 is a schematic diagram illustrating an opening of a leak repairing device according to an embodiment of the present invention;
FIG. 4 is a schematic closing diagram of a leak repairing device according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a working principle of a seed metering device according to an embodiment of the present invention.
In the figure: 1. a frame; 2. a seed metering device; 21. a rotating shaft; 22. a housing; 221. a U-shaped shell; 2221. a baffle; 22211. a leak hole; 2222. a U-shaped body; 2223. a connecting column; 222. a U-shaped cover; 223. a square cover; 23. a cellular wheel; 231. a first outer circle; 232. a second outer layer ring; 233. an intermediate layer; 2331. a pit; 24. a bearing; 25. a seed discharging tube; 26. a brush; 27. a leak repairing device; 271. a roller; 272. a square plate; 273. a leak repairing box; 274. a leakage box baffle; 275. a mounting plate; 28. an elastic member; 3. a connecting shaft; 4. a land wheel; 5. a ditching device; 51. a first connecting rod; 52. a ditching disc; 6. a soil covering device; 61. a second connecting rod; 62. a circular plate; 7. seed.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to fig. 1 and 5, a device for precisely sowing small granular seeds according to the present application will now be described. The device for precisely sowing small granular seeds comprises: the seeding device comprises a frame 1, a seeding device 2, a connecting shaft 3 and a land wheel 4, wherein the frame 1 is detachably connected with a vehicle, a clamping piece connected with a pin can be welded on the frame 1 and is connected with the pin, the frame 1 is driven by the vehicle, the connecting mode can also be used for enabling the frame 1 to be detachably connected with the vehicle through the matching connection of the connecting piece and a bolt, and the frame 1 and the vehicle can be detachably connected only by being capable of being realized. The seeding device 2 is provided with a rotating shaft 21, the two ends of the rotating shaft 21 are provided with external threads, the seeding device 2 is respectively fixed with the frame 1 through bolt connection, the seeding device 2 is provided with the rotating shaft 21, the two ends of the rotating shaft 21 are provided with external threads, one end of the connecting shaft 3 is provided with an internal threaded hole matched with the external threads, the land wheel 4 is fixed on the connecting shaft 3 through bolt connection, the internal threads of the rotating shaft 21 are matched and connected with the external threads of the connecting shaft 3, the land wheel 4 is fixedly connected with the seeding device 2, the land wheel 4 is pulled to rotate and walk during seeding, the land wheel 4 is rotated to drive the connecting shaft 3 to rotate, the connecting shaft 3 drives the rotating shaft 21 to rotate, the rotating shaft 21 enables the seeding device 2 to rotate, and seeds 7 are discharged from the seeding device 2 along the driving direction of the vehicle, and the device for precisely seeding small granular seeds has a simple structure, is in a pure mechanical transmission mode, automatic equipment is not involved, and the production cost is low; the device for precisely sowing the small granular seeds is simple to operate and low in requirement on users. In order to ensure that the device for precisely sowing the small granular seeds operates stably, the device for precisely sowing the small granular seeds is provided with at least two land wheels 4, the two land wheels 4 are respectively fixed on two connecting shafts 3, the two connecting shafts 3 are respectively connected with the two ends of a rotating shaft 21 through the matching of internal threads and external threads, the whole structure is symmetrical, and the width between the adjacent land wheels 4 is ridge width.
Example two
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1 to 5 together, the structure of a device for precisely sowing small granular seeds provided in the present embodiment is basically the same as that of embodiment 1, the difference is that the structure of the connecting shaft 3 and the number of the seed sowing devices 2 and land wheels 4 are respectively provided with internal threaded holes matching with external threads of the rotating shaft 21 at two ends of the connecting shaft 3, three seed sowing devices 2 of two land wheels 4 are installed at intervals, 3 seed sowing devices 2 are fixedly connected with the frame 1 through bolts, the distance between adjacent seed sowing devices 2 is ridge width, through installing the rotating shaft 21 on the seed sowing devices 2, one end of the connecting shaft 3 is in threaded fit connection with one end of another rotating shaft 21, the other end of the connecting shaft 3 is in threaded fit connection with one end of another rotating shaft 21, each connecting shaft 3 is fixedly connected with one land wheel 4 through bolts, the width between the adjacent land wheels 4 is ridge width, the rotating shaft 21 is in threaded fit with the connecting shaft 3, the land wheels 4 are fixedly connected with the seed sowing devices 2, the small granular seed sowing devices 2 can be installed at intervals according to the actual conditions, the two seed sowing devices 2 can be installed at intervals, and the two small granular seed sowing devices 2 can be adjusted at intervals, the same time, the two accurate granular seed sowing devices 2 can be used according to the practical conditions, the practical conditions of the small granular seed sowing device can be increased in space width, and the space between the small granular seed sowing device can be increased, and the space between the small granular seed sowing device can be used according to the practical time, and the practical sowing device can be increased; the device for precisely sowing the small granular seeds has the advantages of simple structure, pure mechanical transmission and low production cost, and does not relate to automation equipment.
Specifically, a device of accurate seeding of little granular seed, seed metering device 2 still includes mounting panel 275 around, and frame 1 is the rectangle frame, and the fixed plate of cooperation mounting panel 275 is installed respectively to the both long limit of rectangle frame to through bolt fixed connection, the long limit intermediate position of rectangle frame can dismantle with the vehicle and be connected, steady operation and connection are firm when making the device of this kind of accurate seeding of little granular seed.
Example III
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1 to 5 together, the structure of a device for precisely sowing small granular seeds provided in this embodiment is substantially the same as that of embodiment 1, and the difference is that the structure of the seed sowing device 2 is that the seed sowing device 2 includes: the device comprises a shell 22, a hole wheel 23, a bearing 24 and a seed sowing pipe 25, wherein a seed sowing hole is formed in the lower end of the shell 22, connecting holes are formed in the left end and the right end of the shell 22, the front end and the rear end of the shell 22 are connected with a frame 1 through bolts, the hole wheel 23 is arranged in the shell 22, a rotating shaft 21 is arranged in the hole wheel 23, the rotating shaft 21 penetrates through the connecting holes, the connecting holes are connected with the rotating shaft 21 through the bearing 24 in a matched mode, the inner ring surface of the bearing 24 is tightly attached to the rotating shaft 21, the outer ring surface of the bearing 24 is tightly attached to the connecting holes, the seed sowing pipe 25 is fixedly welded with the seed sowing hole, seeds 7 are filled in the shell 22 above the hole wheel 23, during sowing, the vehicle pulls the frame 1 to enable the land wheel 4 to rotate, the land wheel 4 rotates to drive the connecting shaft 3 to rotate, the connecting shaft 3 drives the rotating shaft 21 to rotate, the seed 7 in the shell above the hole wheel 23 flows onto the hole wheel 23 along with self weight, the seed 7 flows into the seed sowing pipe 25 along with the rotation of the hole wheel 23, the seed 7 rotates along with the hole wheel 23, the seed sowing pipe 25 is tightly attached to the rotating with the rotating shaft 21, the seed sowing pipe 7 is tightly sows, the seeds 7 are filled with the seeds, and the seeds are evenly sown through the seed sowing device, and the seeds, and the ground resistance.
Specifically, a device for precisely sowing small granular seeds, the hole wheel 23 and the rotating shaft 21 are integrally structured, the connection stability is improved, the shell 22 comprises a square cover 223, a U-shaped shell 221 and a U-shaped cover 222, the U-shaped shell 221 is provided with a baffle 2221 and a connecting column 2223, the U-shaped cover 222 is provided with a connector matched with the connecting column 2223, the lower end of the baffle 2221 is matched with the hole wheel 23 in an arc manner, seeds 7 drop when the hole wheel 23 rotates clockwise, the front baffle 2221 and the rear baffle 2221 are provided with slopes, the seeds 7 can flow into the hole wheel 23 along the directions of the slopes, the seeds 7 are prevented from being influenced by dead angle areas, the seeding device 2 is assembled, the U-shaped shell 221 and the hole wheel 23 are matched and installed firstly, then the connecting column 2223 of the U-shaped cover 222 is matched with the connector of the U-shaped shell 221, the square cover 223 is covered above the U-shaped cover 222 and the U-shaped shell 221, the shell 22 is formed by the square cover 223, the seed wheel 23 is convenient to form the hole wheel 23, and the seeds 23 are prevented from flowing into the hole wheel 222, and the holes 23 are prevented from flowing into the slopes, and the holes 23 are also prevented from being fast and the slopes from being reduced.
In this embodiment, a device of accurate seeding of little granular seed, seed metering device 2 still includes brush 26, and the nest eye wheel 23 top is arranged in to brush 26, brush head and nest eye wheel 23 sliding connection, and the brush is connected with casing 22 for clean unnecessary seed 7 on the nest eye wheel 23, this kind of accurate device of seeding of little granular seed, unnecessary seed 7 on the nest eye wheel 23 can be cleaned to brush 26, makes seed 7 seeding quantity even, also avoids seed 7 to block up nest eye wheel 23 simultaneously, has reduced the maintenance number of times of this kind of accurate device of seeding of little granular seed, also makes seed 7 seeding quantity even.
Specifically, a device for precisely sowing small granular seeds, a through hole is arranged on a baffle 2221 of a shell 22 above a socket wheel 23, a brush handle penetrates through the through hole, the baffle 2221 is detachably connected with the brush handle, and the brush 26 is convenient to replace.
In this embodiment, a device for precisely sowing small granular seeds, the pocket wheel 23 comprises: the first outer ring 231, the second outer ring 232 and the middle layer 233, the middle layer 233 is an outer ring wavy ring, the trough is a nest hole 2331, the wave crest is internally tangent with the outer ring surfaces of the first outer ring 231 and the second outer ring 232, the first outer ring 231, the second outer ring 232 and the middle layer 233 are sleeved on the rotating shaft 21 and form an integrated structure with the rotating shaft 21, the nest hole 2331 limits the number of seeds 7, the wave crest is internally tangent with the outer ring surfaces of the first outer ring 231 and the second outer ring 232, the flow of seeds 7 between the nest hole 2331 and the nest hole 2331 is limited when the nest hole wheel 23 rotates, and meanwhile, in order to enable the hairbrush 26 to smoothly brush the surface of the nest hole wheel 23, the fluctuation of the hairbrush 26 is avoided, and the number of seeds 7 of the nest hole 2331 is avoided.
In this embodiment, a device for precisely sowing small granular seeds, the seed sowing device 2 further includes a leakage repairing device 27, which is located right above the hole wheel 23 and is placed in front of the brush 26, when the hole wheel 23 rotates clockwise, the brush 26 cleans the redundant seeds 7 in the hole 2331, one end of the leakage repairing device 27 rolls on the middle layer 233, the other end is slidingly connected with the shell 22, the leakage repairing device 27 moves up and down due to the wavy ring shape of the middle layer 233, the position of the hole 2331 filled with the seeds 7 is not moved down, when the hole 2331 lacks seeds 7, the leakage repairing device 27 moves down, so that the seeds 7 in the leakage repairing device 27 fall down to fill the hole 2331 lacking seeds 7, and the device for precisely sowing the small granular seeds 7 prevents the leakage repairing device 27 from influencing the yield of the land due to the lack of the seeds 7 in the hole 2331 when the seeds 7 lack of the hole 2331 cause sowing.
In this embodiment, a device of accurate seeding of little granular seed, seed metering device 2 still includes benefit to leak repairing device 27, benefit to leak repairing device 27 and include: the device comprises a roller 271, a square plate 272, a leakage repairing box 273 and a leakage repairing box baffle 274, wherein the roller 271 is in rolling connection with the middle layer 233, the lower end of the square plate 272 is provided with a connecting part matched with the roller 271, the connecting part is in rotary connection with the roller 271, the square plate 272 is in sliding connection with the shell 22, the leakage repairing box 273 is arranged in the shell 22 and is used for containing seeds 7, one end of the leakage repairing box baffle 274 is connected with the square plate 272, the other end of the leakage repairing box baffle 274 is in sliding connection with the leakage repairing box 273, the leakage repairing box baffle 274 is used for controlling the opening and closing of the leakage repairing box 273, the roller 271 is tangent to a wave layer in the middle of the hole wheel 23, and the roller 271 rotates along with the rotation of the hole wheel 23. When the pocket 2331 is filled with the seed 7, the round end face of the pocket wheel 23 is approximately flush with the pocket 2331, and when the roller 271 moves to the place where the roller 271 passes over the round end face approximately, the square plate 272 does not move up and down; when no seeds 7 are present in the pocket 2331, the pocket 2331 moves to the position of the roller 271, and the roller 271 passes along the pocket 2331, the movement trace of the roller 271 relative to the pocket wheel 23 is wave-shaped, so that the roller 271 and the square plate 272 move downward. The box baffle 274 that leaks that connects on square board 272 drops, make the box 273 that leaks falls in nest 2331, because square board 272 moves down the distance be the degree of depth of nest 2331 promptly, so square board 272 opens and only can fall out a seed 7 that is similar with nest 2331 size, the accurate seeder of this kind of small granule seed, the device 27 that leaks, and the opening size of box 273 is the size of seed 7 for the time mending, and the time is short can only drop a seed 7, avoid unnecessary seed 7 to drop the use of the accurate seeder of this kind of small granule seed that influences.
Specifically, a device for precisely sowing small granular seeds is characterized in that a connecting rod is arranged on a box-leaking baffle 274, the connecting rod is vertically connected and fixed with a square plate 272, a U-shaped body 2222 is arranged in a shell 22 and is positioned above a cellular wheel 23, the bottom end of the U-shaped body 2222 is connected with the inner wall of a U-shaped shell 221 of the shell 22, the inner wall of the U-shaped body 2222 is matched with the square plate 272 to realize up-down sliding connection, the front arm of the U-shaped body 2222 is connected with a front baffle 2221, the rear arm of the U-shaped body 2222 is connected with a brush 26, the other end of the U-shaped body 2222 is connected with the baffle 2221, the connecting rod is placed on the walls of the U-shaped body 2222 and the baffle 2221, a box 273 is arranged on a slope of the front baffle 2221, the upper end of the box 273 is bigger and smaller, thereby the quantity of seeds discharged from the lower end of the box 273 is reduced, the slope of the front baffle 2221 is provided with the leak holes 22211 at the bottom of the leak repairing box 273, the inner wall of the leak holes 22211 and the bottom of the leak repairing box 273 are in sliding connection with the leak box baffle 274, when the leak box baffle 274 moves downwards to open the leak repairing box 273, seeds 7 fall out of the bottom of the leak repairing box 273 and fall into the leak holes 22211, then fall into the nest holes 2331 from the leak holes 22211, the leak repairing box 273 is arranged on the slope, seeds 7 can fall into the leak holes 22211 freely when the leak repairing box 273 is opened and flow into the nest holes 2331, the seed metering device 2 is divided into a seed filling area, a seed supplementing area, a seed conveying area and a seed discharging area, the seeds 7 flow out of the seed filling area to the seed supplementing area, and then flow into the seed discharging area after the seed conveying area is fully informed, and sowing is carried out.
In this embodiment, a device for precisely sowing small granular seeds, the seed sowing device 2 further includes an elastic member 28, the elastic member 28 is disposed between the hole wheel 23 and the housing 22, the elastic member 28 is used for slowing down the impact of the hole wheel 23 on the housing 22, and damage to the hole wheel 23 or the housing 22 caused by long-time use is avoided, so that the service life of the device for precisely sowing small granular seeds is prolonged.
Specifically, in the device for precisely sowing small granular seeds, the elastic element 28 is arranged at the matched and connected position of the baffle 2221 and the pocket wheel 23, and the position, which is higher than the connection position of the turbine eye and the baffle 2221, of the elastic element 28 is wrapped above the pocket wheel 23, namely, the starting point of the elastic element 28 is positioned above the middle of the pocket wheel 23 and is deviated downwards, so that the stability of the seeds 7 in the pockets 2331 is improved, and the falling probability of the jolt seeds 7 during cultivation is reduced.
In this embodiment, the elastic member 28 is a rubber pad, which has a smooth surface and is used for reducing the rotation friction force of the pocket wheel 23.
In this embodiment, a device of accurate seeding of little granular seed still includes ditching device 5, and ditching device 5 passes through bolt fixed connection with frame 1, and arranges in before seed metering device 2, and ditching device 5 opens the soil ditch of certain degree of depth with the cultivated land, and this kind of accurate device of seeding of little granular seed, ditching device 5 can realize that the cultivated land is sowed simultaneously, has reduced the cultivation number of times to the soil.
Specifically, the ditching device 5 includes a first triangle pointed knife and a first connecting rod 51, wherein a midpoint of one side of the first triangle pointed knife is welded with one end of the first connecting rod 51, and a soil seed is inserted into a knife tip of the triangle pointed knife, so that the triangle pointed knife forms an obtuse angle with the ground, the other end of the first connecting rod 51 is connected with the frame1 through a bolt to be fixedly connected, and the first connecting rod and the seeding device 2 work on the same straight line, namely, a seeding line and a furrow are the same straight line.
In this embodiment, a device of accurate seeding of little granular seed still includes earthing device 6, and earthing device 6 passes through bolt fixed connection with frame 1, and arranges seed metering device 2 back in, and earthing device 6 is arranged in covering seed 7 in the soil-dispersing ridge ditch, and earthing device 6 can realize seeding while earthing, has reduced the cultivation number of times to the soil.
Specifically, the soil covering device 6 comprises a second triangular pointed knife and a second connecting rod 61, wherein the midpoint of one side of the second triangular pointed knife is welded with one end of the second connecting rod 61, the soil seeds are inserted into the knife tip of the triangular pointed knife, so that the triangular pointed knife forms an obtuse angle with the ground, the other end of the second connecting rod 61 is connected with the frame 1 through a bolt to be fixedly connected, the second connecting rod and the seed metering device 2 do not work on the same straight line, the vertical distance between the second connecting rod 61 and a sowing line of the seed metering device 2 is half of the ridge width, and the interval between two adjacent soil covering devices 6 is the ridge width.
Example IV
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1 to 5 together, the structure of a device for precisely sowing small granular seeds provided in this embodiment is basically the same as that of embodiment 1, except that the structure of the ditching device 5 is that the ditching device 5 includes: first connecting rod 51 one end and frame 1 bolt fixed connection are equipped with first through-hole in the middle of the ditching dish 52, form contained angle and the centre gripping of first connecting rod 51 other end through bolted connection in the middle of two ditching dishes 52 and be connected, and fix with the bolt, ditching dish 52 is round blade, two round blade edge connections become the contained angle and install on the first connecting rod 51, the device that this kind of small granule seed 7 is accurate to sow advances the in-process, the closed angle that two round blade constitutes is moved forward and will be ploughed the soil ditch of making certain degree of depth, accomplish the device that this kind of small granule seed is accurate to sow of ditching work, ditching device 5 can realize ploughing the soil and sow simultaneously, reduced the cultivation number of times to the soil.
Example five
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1 to 5 together, the structure of a device for precisely sowing small granular seeds provided in this embodiment is basically the same as that of embodiment 1, except that the structure of the soil covering device 6 is that the soil covering device 6 includes: the second connecting rod 61 and the plectane 62, plectane 62 are equipped with the second through-hole, and second connecting rod 61 one end is being installed on with frame 1, forms the contained angle through bolted connection in the middle of two plectane 62 and is connected with the centre gripping of second connecting rod 61 other end to with the bolt fastening, this kind of accurate device of sowing of small granule seed, earthing device 6 can realize sowing simultaneously earthing, has reduced the cultivation number of times to the soil.
In the description of the present invention, it should be understood that the direction or positional relationship indicated with respect to the direction description such as up, down, front, rear, left, right, etc. is based on the direction or positional relationship shown in the drawings, is for convenience of description of the present invention and for simplification of description, and therefore should not be construed as limiting the present invention.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.

Claims (5)

1. The utility model provides a device of accurate seeding of little graininess seed which characterized in that includes:
The frame (1) is detachably connected with the vehicle;
The seeding device (2) is provided with a rotating shaft (21), external threads are arranged at two ends of the rotating shaft (21), and the seeding device (2) is connected with the frame (1);
One end of the connecting shaft (3) is provided with an internal threaded hole matched with the external thread;
The land wheel (4) is connected with the connecting shaft (3), and the land wheel (4) is used for driving the inside of the seed sowing device (2) to rotate for sowing;
the seed metering device (2) comprises:
A shell (22) provided with a seed metering hole and a connecting hole, wherein the shell (22) is connected with the frame (1);
The hole wheel (23) is arranged in the shell (22), the rotating shaft (21) is arranged on the hole wheel (23), the rotating shaft (21) penetrates through the connecting hole, and the connecting hole is connected with the rotating shaft (21) in a matched mode through a bearing (24);
A seed metering tube (25) connected with the seed metering hole;
The seed metering device (2) further comprises a brush (26), the brush (26) is arranged above the hole wheel (23), a brush head of the brush (26) is in sliding connection with the hole wheel (23), a brush handle is connected with the shell (22), and the brush (26) is used for cleaning redundant seeds (7) on the hole wheel (23);
the pocket wheel (23) comprises:
a first outer annular ring (231);
a second outer layer ring (232);
The middle layer (233) is an outer ring wavy ring, the trough is a nest hole (2331), the wave crest is inscribed with the outer surfaces of the first outer layer ring (231) and the second outer layer ring (232), and the first outer layer ring (231), the second outer layer ring (232) and the middle layer (233) are connected through the rotating shaft (21);
The seed metering device (2) further comprises a leakage repairing device (27), the leakage repairing device (27) is positioned above the socket wheel (23) and is arranged in front of the hairbrush (26), one end of the leakage repairing device (27) is in rolling connection with the middle layer (233), the other end of the leakage repairing device is in sliding connection with the shell (22), and the leakage repairing device (27) is used for replenishing the seeds (7) lacking in the socket (2331);
The leak repairing device (27) comprises:
A roller (271) in rolling connection with the intermediate layer (233);
a square plate (272), the lower end of which is provided with a connecting part matched with the roller (271), the connecting part is rotationally connected with the roller (271), and the square plate (272) is slidingly connected with the shell (22);
A leak repairing box (273), wherein the leak repairing box (273) is arranged in the shell (22) and used for containing the seeds (7);
A leakage box baffle (274), one end of which is connected with the square plate (272) and the other end of which is connected with the leakage box (273) in a sliding way, wherein the leakage box baffle (274) is used for controlling the switch of the leakage box (273);
The box leakage baffle (274) is provided with a connecting rod which is vertically connected and fixed with the square plate (272).
2. The device for precisely sowing small granular seeds as set forth in claim 1, wherein said seed metering device (2) further comprises an elastic member (28), said elastic member (28) being disposed between said pocket wheel (23) and said housing (22), said elastic member (28) being adapted to slow down the impact of said pocket wheel (23) on said housing (22).
3. A device for precision sowing of small granular seeds as claimed in claim 2, characterized in that said elastic member (28) is a rubber pad for reducing the rotational friction of said socket wheel (23).
4. A device for precisely sowing small granular seeds as set forth in claim 3, further comprising a ditching device (5), wherein the ditching device (5) is connected with the frame (1) and is placed in front of the seed metering device (2), and the ditching device (5) opens a soil ditch with a certain depth into the cultivated land.
5. The device for precisely sowing small granular seeds as set forth in claim 4, further comprising a covering device (6), wherein the covering device (6) is connected with the frame (1) and is disposed behind the seed sowing device (2), and the covering device (6) is used for covering the seeds (7) by ridging loose soil into the ditch.
CN202011178444.6A 2020-10-29 2020-10-29 Device for precisely sowing small granular seeds Active CN112292993B (en)

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Citations (1)

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Publication number Priority date Publication date Assignee Title
CN213368620U (en) * 2020-10-29 2021-06-08 河北农业大学 Device for accurately sowing small granular seeds

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DE102006056256A1 (en) * 2006-11-27 2008-05-29 Rauch Landmaschinenfabrik Gmbh seeder
CN101273682A (en) * 2008-04-18 2008-10-01 镇江市农业机械技术推广站 Multipurpose seed-feeding device with precise small quantities for rice, wheat and oil
US9282691B2 (en) * 2012-10-23 2016-03-15 Kinze Manufacturing, Inc. Air seed meter disc with flow directing pockets
KR101655517B1 (en) * 2014-07-09 2016-09-08 동양물산기업 주식회사 Peanut seeder
CN209731985U (en) * 2019-04-19 2019-12-06 郑州航空工业管理学院 Seed Delivery Mechanism Missed Sowing Compensation Device

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Publication number Priority date Publication date Assignee Title
CN213368620U (en) * 2020-10-29 2021-06-08 河北农业大学 Device for accurately sowing small granular seeds

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