CN113016292A - Air-suction type precision seed sowing device with adjustable suction hole size - Google Patents

Air-suction type precision seed sowing device with adjustable suction hole size Download PDF

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Publication number
CN113016292A
CN113016292A CN202110429327.0A CN202110429327A CN113016292A CN 113016292 A CN113016292 A CN 113016292A CN 202110429327 A CN202110429327 A CN 202110429327A CN 113016292 A CN113016292 A CN 113016292A
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China
Prior art keywords
adjusting
seed
hole
negative pressure
suction
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CN202110429327.0A
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CN113016292B (en
Inventor
陈玉龙
张猛
兰玉彬
印祥
伊丽丽
刘泽琪
刘纪元
姜业元
康旺财
赵文起
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Shandong University of Technology
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Shandong University of Technology
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Priority to CN202110429327.0A priority Critical patent/CN113016292B/en
Publication of CN113016292A publication Critical patent/CN113016292A/en
Priority to ZA2021/08884A priority patent/ZA202108884B/en
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Publication of CN113016292B publication Critical patent/CN113016292B/en
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01CPLANTING; SOWING; FERTILISING
    • A01C7/00Sowing
    • A01C7/18Machines for depositing quantities of seed at intervals
    • 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 discloses an air-suction type precision seed sowing device with adjustable suction hole size, which comprises a seed sowing shell and a seed sowing disc, wherein an adjusting disc and a negative pressure area adjusting assembly are arranged between the seed sowing disc and the seed sowing shell, a plurality of adjusting communication holes and adjusting driving holes are uniformly arranged along the circumferential direction on the adjusting disc, and the adjusting communication holes are communicated with suction holes; the negative pressure area adjusting assembly comprises a plurality of adjusting blocks which are arranged along the circumferential direction, and two side surfaces of two adjacent adjusting blocks are attached to each other; one of the adjusting blocks is provided with an adjusting driving part matched in the adjusting driving hole; a plurality of sliding grooves are arranged on the seed sowing plate, and the number of the sliding grooves is the same as that of the adjusting blocks; the adjusting block is provided with a sliding part matched in the sliding groove; the central spaces of the plurality of adjusting blocks form a variable negative pressure hole. The suction type precision seed sowing device can adjust the size of the suction hole, is suitable for seeds with various sizes, is very convenient to use, and reduces the use cost.

Description

Air-suction type precision seed sowing device with adjustable suction hole size
Technical Field
The invention relates to an air-suction type precision seed sowing device, in particular to an air-suction type precision seed sowing device with adjustable suction hole size.
Background
When the air-suction type seeder works, the high-speed fan generates negative pressure which is transmitted to a vacuum chamber of the seeding device, and when the seeding disc rotates, seeds are adsorbed under the action of the negative pressure of the vacuum chamber and rotate along with the seeding disc; when the seeds are rotated out of the vacuum chamber, they are no longer under negative pressure and fall into the seed furrow by their own weight or under the action of seed scraper.
The size of the suction holes on the seed discharging disc of the existing air-suction type precise seed discharging device can not be adjusted, so that when the existing air-suction type precise seed discharging device works for seeds of different types or sizes, the corresponding seed discharging disc needs to be replaced, the seed discharging discs of various specifications need to be configured, the use cost is increased, the seed discharging discs need to be frequently disassembled and assembled, and the existing air-suction type precise seed discharging device is not convenient enough.
Disclosure of Invention
The invention aims to overcome the existing problems and provide an air-suction type precision seed sowing device with adjustable suction hole size, which can adjust the suction hole size, is suitable for seeds with various sizes, is very convenient to use and reduces the use cost.
The purpose of the invention is realized by the following technical scheme:
an air-suction type precision seed sowing device with adjustable suction hole size comprises a seed sowing shell and a seed sowing disc, wherein the seed sowing shell comprises a first seed sowing shell and a second seed sowing shell, and the seed sowing disc is rotatably connected between the first seed sowing shell and the second seed sowing shell through a rotating shaft; the first seed discharging shell is provided with a seed inlet and a seed outlet, and one side of the second seed discharging shell, which is close to the seed discharging disc, is provided with a negative pressure cavity communicated with a negative pressure providing device;
an adjusting mechanism for adjusting the actual negative pressure area of the suction hole of the seed discharging disc is arranged between the seed discharging disc and the second seed discharging shell, the adjusting mechanism comprises an adjusting disc and a negative pressure area adjusting assembly, the adjusting disc is rotatably connected to the rotating shaft, and the adjusting disc is fixedly connected with the seed discharging disc through a detachable structure; the adjusting disc is provided with a plurality of adjusting communication holes and a plurality of adjusting driving holes, and the adjusting communication holes and the adjusting driving holes are uniformly arranged along the circumferential direction; the number of the adjusting communication holes and the adjusting driving holes is the same as that of the suction holes; the adjusting communication hole is communicated with the suction hole;
the number of the negative pressure area adjusting assemblies is the same as that of the suction holes, each negative pressure area adjusting assembly comprises a plurality of adjusting blocks which are arranged along the circumferential direction, and two side surfaces of every two adjacent adjusting blocks are attached to each other; each group of negative pressure area adjusting components comprises an adjusting block provided with an adjusting driving part, and the adjusting driving part is matched in the adjusting driving hole;
a plurality of sliding grooves which are arranged along the circumferential direction are arranged on the seed discharging disc at the outer side of the suction holes, and the number of the sliding grooves is the same as that of the adjusting blocks; the adjusting block is provided with a sliding part matched in the sliding groove; wherein, the central space of a plurality of regulating blocks constitutes the variable negative pressure hole, and this variable negative pressure hole is connected with the suction hole.
The working principle of the air-suction type precise seed sowing device with the adjustable suction hole size is as follows:
when the seed sowing plate works, seeds are thrown into the seed inlet, and the seeds are stacked on the side surface of the seed sowing plate. The negative pressure providing device is started to generate negative pressure in the negative pressure cavity, and meanwhile, the rotary driving mechanism drives the rotary shaft to rotate, so that the seed discharging disc is driven to rotate. In the rotating process, the seeds are adsorbed on the corresponding suction holes under the action of negative pressure and rotate forwards along with the seeding plate; when the suction hole rotates forward to the position of the seed outlet, the suction hole is separated from the negative pressure cavity, the seeds originally adsorbed on the suction hole fall down under the action of gravity, and then the seeds are transferred to the seed discharging shell from the seed outlet and fall into the soil below, so that the seed discharging operation is completed.
When the seeds with different sizes need to be sown, the second seed sowing shell is detached firstly, then the detachable structure is detached to enable the adjusting disc to rotate relative to the seed sowing disc, then the adjusting disc is rotated towards the corresponding direction, and the negative pressure area adjusting assembly is driven to move, so that the size of the actual negative pressure area (variable negative pressure hole) at the suction hole can be adjusted to match the seeds with different sizes. Specifically, the operation of adjusting the size of the negative pressure area (variable negative pressure hole) at the suction hole is that, through the rotation of the adjusting disk, the adjusting block provided with the adjusting driving part is driven to slide along the corresponding sliding groove, because two side surfaces of two adjacent adjusting blocks are attached to each other, when the adjusting block moves, the adjacent adjusting block in the corresponding driving direction can be extruded, so that the adjusting block slides along the corresponding sliding groove, further, because the adjusting blocks are distributed along the circumferential direction, all the adjusting blocks can move synchronously, linkage is realized, and the size of the variable negative pressure hole (namely the actual negative pressure area at the suction hole) is adjusted to adapt to seeds with different sizes. After the adjustment is finished, the adjusting disc is fixed on the seed discharging disc through a detachable structure, and then the second seed discharging shell is arranged to work normally.
In a preferred embodiment of the present invention, two side surfaces of the adjusting block, which are attached to the adjacent adjusting block, are inclined surfaces, and the two inclined surfaces have different orientations. The effect that sets up like this lies in for compress tightly each other between the regulating block, can prevent to drop.
In a preferable aspect of the present invention, six sliding grooves are provided; the adjusting blocks are arranged to be regular triangles. Of course, the sliding grooves can be three, four or more; the inner angle of the regulating block close to the center of the suction hole depends on the number of the regulating blocks.
In a preferable embodiment of the present invention, the adjusting communication hole is a circular hole, or a long hole, or an arc hole;
the size of the adjusting communicating hole is larger than that of the suction hole of the seed plate, and the size of the adjusting communicating hole is smaller than that of the negative pressure area adjusting assembly in the minimum state, so that the negative pressure adjusting assembly is pressed to avoid falling off.
In a preferred embodiment of the present invention, the negative pressure chamber is arc-shaped and protrudes toward the outer side of the second seed metering housing.
In a preferred aspect of the present invention, in the axial projection, the seed inlet port is overlapped in the negative pressure cavity, and the seed outlet port is located outside the negative pressure cavity. Through above-mentioned structure, rotate to the suction hole in negative pressure chamber and adsorb the seed that is located kind of a mouthful department, then forward rotates, when rotating to the position of seed outlet, the suction hole loses the negative pressure, and the seed freely drops to seed outlet under the effect of gravity in, then falls in the below earth.
In a preferred embodiment of the present invention, the adjustment driving hole is configured as an elongated circular hole, so that when the adjustment disc rotates, the adjustment block slides along the corresponding sliding groove under the pressing of the adjustment driving hole, and at the same time, the adjustment driving part moves relatively in the elongated circular hole, thereby ensuring that the adjustment block can smoothly complete adjustment.
In a preferred embodiment of the present invention, the edge of the seed outlet is provided with a baffle for blocking seeds falling from the seed discharge plate, so that the seeds can be blocked and limited to the seed outlet, and the adsorbed seeds and the seeds to be adsorbed are prevented from being mixed.
In a preferred embodiment of the present invention, the negative pressure chamber is communicated with the negative pressure providing device through the negative pressure port to achieve negative pressure, so as to adsorb the seeds.
In a preferred embodiment of the present invention, the rotating shaft is connected to a rotary driving mechanism, and the rotating shaft is fixedly connected to the seed discharging plate and rotatably connected to the second seed discharging housing through a bearing. Through the structure, the seed discharging disc is in transmission connection, so that the seed discharging disc rotates between the first seed discharging shell and the second seed discharging shell.
Compared with the prior art, the invention has the following beneficial effects:
1. the air-suction type precision seed sowing device can adjust the size of the suction hole, is suitable for seeds with various sizes, is very convenient to use, and reduces the use cost.
2. Through the adjustment disk rotation, the regulating block that the drive was equipped with the regulation drive division slides along its sliding tray that corresponds, because two sides of two adjacent regulating blocks paste mutually, when this regulating block removed, can extrude the adjacent regulating block of the drive direction that corresponds, make the regulating block slide along its sliding tray that corresponds, furthermore, because the regulating block distributes along the circumferencial direction, consequently, all regulating blocks will synchronous movement, realize the linkage, thereby the size in adjustment negative pressure hole (the actual negative pressure area in suction opening department promptly), in order to adapt to the not seed of equidimension.
3. When seeds with different diameters need to be sown in the seeding work, the adjusting disc only needs to be rotated, so that the size of the suction hole is adjusted to be matched with the diameter of the seeds, and the seeding disc does not need to be frequently replaced.
Drawings
Fig. 1 is a schematic perspective view of an air-aspiration type precision seed-metering device with adjustable aspiration hole size according to the present invention.
Fig. 2-3 are schematic perspective exploded views of two different viewing angles of the air-aspiration type precision seed sowing device with adjustable aspiration hole size in the invention.
Fig. 4 is a perspective exploded view of the seed metering disk and adjustment mechanism of fig. 2.
Fig. 5 is an enlarged view of X in fig. 4.
FIG. 6 is a front view of the seed plate and adjustment mechanism of FIG. 2.
Fig. 7-8 are enlarged views of Y in fig. 6, wherein fig. 7 and 8 have different sized negative pressure areas.
Detailed Description
In order to make those skilled in the art understand the technical solutions of the present invention well, the following description of the present invention is provided with reference to the embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.
Example 1
Referring to fig. 1-3, the air-aspiration type precision seed sowing device with adjustable suction hole size in the present embodiment includes a seed sowing housing and a seed sowing plate 1, the seed sowing housing includes a first seed sowing housing 2 and a second seed sowing housing 3, the seed sowing plate 1 is rotatably connected between the first seed sowing housing 2 and the second seed sowing housing 3 through a rotating shaft 4; a seed inlet 2-1 and a seed outlet 2-2 are arranged on the first seed discharging shell 2, and a negative pressure cavity 3-1 communicated with a negative pressure supply device is arranged on one side, close to the seed discharging disc 1, of the second seed discharging shell 3; specifically, the negative pressure cavity 3-1 is arc-shaped, and the negative pressure cavity 3-1 protrudes toward the outer side of the second seed sowing shell 3.
Referring to fig. 2-8, an adjusting mechanism for adjusting the actual negative pressure area of the suction hole 1-1 of the seed plate 1 is arranged between the seed plate 1 and the second seed shell 3, the adjusting mechanism comprises an adjusting plate 5 and a negative pressure area adjusting assembly, the adjusting plate 5 is rotatably connected to a rotating shaft 4, and the adjusting plate 5 is fixedly connected with the seed plate 1 through a detachable structure; specifically, detachable structure is bolted connection structure, certainly also can be other structures, and it is fixed to guarantee to rotate the after-fixing to can rotate after removing, rotate to the needs angle after, fix once more. The adjusting disc 5 is provided with a plurality of adjusting communicating holes 5-1 and a plurality of adjusting driving holes 5-2, and the adjusting communicating holes 5-1 and the adjusting driving holes 5-2 are uniformly arranged along the circumferential direction; the number of the adjusting communication holes 5-1 and the adjusting driving holes 5-2 is the same as that of the suction holes 1-1; the adjusting communicating hole 5-1 is communicated with the suction hole 1-1. Specifically, the size of the adjusting communicating hole 5-1 is limited to a certain extent, and can be a round hole, a long hole or an arc hole, but the size of the adjusting communicating hole must be larger than the size of the sucking hole 1-1 on the seeding plate 1, and must be smaller than the outermost side edge of the negative pressure area adjusting component, so as to press the negative pressure adjusting component and avoid the negative pressure adjusting component from falling off.
The number of the negative pressure area adjusting assemblies is the same as that of the suction holes 1-1, each negative pressure area adjusting assembly comprises a plurality of adjusting blocks 6 which are arranged in a regular triangle, the adjusting blocks 6 are arranged along the circumferential direction, and two side surfaces of two adjacent adjusting blocks 6 are attached to each other; each group of negative pressure area adjusting components comprises an adjusting block 6 provided with an adjusting driving part 6-1, and the adjusting driving part 6-1 is matched in the adjusting driving hole 5-2.
Six sliding grooves 1-2 which are connected end to end and (certainly, not necessarily connected end to end, but also have gaps) are arranged along the circumferential direction on the seed plate 1 at the outer side of the suction hole 1-1, and the number of the sliding grooves 1-2 is the same as that of the adjusting blocks 6; the adjusting block 6 is provided with a sliding part 6-2 matched in the sliding groove 1-2; wherein the central spaces of the plurality of regulating blocks 6 constitute a variable negative pressure hole 7, and the variable negative pressure hole 7 communicates with the suction hole 1-1.
Referring to fig. 1-3, in axial projection, the inlet port 2-1 is overlapped in the negative pressure cavity 3-1, and the outlet port 2-2 is positioned outside the negative pressure cavity 3-1. Through the structure, the suction hole 1-1 which rotates to the negative pressure cavity 3-1 adsorbs seeds positioned at the seed inlet 2-1 and then rotates forwards, when the suction hole 1-1 rotates to the seed outlet 2-2, the negative pressure is lost by the suction hole 1-1, and the seeds freely fall into the seed outlet 2-2 and then fall into soil below under the action of gravity.
Referring to fig. 1-3, the negative pressure cavity 3-1 is communicated with a negative pressure supply device through a negative pressure port 3-2 to realize negative pressure, so as to adsorb seeds.
Referring to fig. 1-3, the rotating shaft 4 is connected with a rotary driving mechanism, and the rotating shaft 4 is fixedly connected with the seed metering disc 1 and is rotatably connected with the second seed metering shell 3 through a bearing; the left-most side of the rotating shaft 4 is fixed by a pin and is positioned in the cavity 2 of the first row of shells, but is not contacted with the first row of shells. Through the structure, the seed plate 1 is in transmission connection, so that the seed plate 1 rotates between the first seed shell 2 and the second seed shell 3.
Referring to fig. 4-8, two side surfaces of the adjusting block 6, which are attached to the adjacent adjusting block 6, are inclined surfaces, and the two inclined surfaces are oriented in different directions, so that mutual compression is realized, and falling off is prevented. Of course, the adjusting block can be in a step shape or other shapes as long as the former adjusting block 6 can press the latter adjusting block 6.
Referring to fig. 4 to 8, the adjustment driving hole 5-2 is configured as an elongated circular hole, so that when the adjustment disc 5 rotates, the adjustment block 6 slides along the corresponding sliding groove 1-2 under the pressing of the adjustment driving hole 5-2, and at the same time, the adjustment driving part 6-1 moves relatively in the elongated circular hole (the adjustment driving hole 5-2), thereby ensuring that the adjustment block 6 completes the adjustment smoothly.
Referring to fig. 4-8, the edge of the seed outlet 2-2 is provided with a baffle 8 for blocking seeds falling from the seed plate 1, so that the seeds can be blocked and limited to the seed outlet 2-2, and the adsorbed seeds and the seeds to be adsorbed are prevented from being mixed.
Referring to fig. 1 to 8, the operation principle of the air-aspiration type precision seed sowing device with adjustable aspiration hole size in the embodiment is as follows:
when the seed sowing plate works, seeds are thrown into the seed inlet 2-1, and the seeds are stacked on the side surface of the seed sowing plate 1. The negative pressure providing device is started to generate negative pressure in the negative pressure cavity 3-1, and meanwhile, the rotary driving mechanism drives the rotary shaft 4 to rotate, so that the seeding plate 1 is driven to rotate. In the rotating process, the seeds are adsorbed on the corresponding suction holes 1-1 under the action of negative pressure and rotate forwards along with the seeding plate 1; when the suction hole 1-1 rotates forwards to the position of the seed outlet 2-2, the suction hole 1-1 is separated from the negative pressure cavity 3-1, the seeds originally adsorbed on the suction hole 1-1 fall downwards under the action of gravity, and then are transferred to the outside of the seed discharging shell from the seed outlet 2-2 and fall into the soil below, so that the seed discharging operation is completed.
When seeds with different sizes need to be sown, the second seed sowing shell 3 is firstly disassembled, then the adjusting disc 5 can rotate relative to the seed sowing disc 1 by disassembling the bolt connecting structure, then the adjusting disc 5 is rotated towards the corresponding direction, and the negative pressure area adjusting assembly is driven to move, so that the size of the actual negative pressure area (the variable negative pressure hole 7) at the suction hole 1-1 can be adjusted to match the seeds with different sizes. Specifically, the operation of adjusting the size of the negative pressure area (the variable negative pressure hole 7) at the suction hole 1-1 is that the adjusting disk 5 rotates to drive the adjusting block 6 provided with the adjusting driving portion 6-1 to slide along the corresponding sliding groove 1-2, because two side surfaces of two adjacent adjusting blocks 6 are attached to each other, when the adjusting block 6 moves, the adjusting block 6 adjacent to each other in the corresponding driving direction is pressed to urge the adjusting block 6 to slide along the corresponding sliding groove 1-2, further, because the adjusting blocks 6 are distributed along the circumferential direction, all the adjusting blocks 6 will move synchronously to realize linkage, so as to adjust the size of the variable negative pressure hole 7 (i.e. the actual negative pressure area at the suction hole 1-1) to adapt to seeds of different sizes. After the adjustment is finished, the adjusting plate 5 is fixed on the seed discharging plate 1 through the bolt connecting structure, and then the second seed discharging shell 3 is arranged to work normally.
Example 2
Unlike embodiment 1, the number of the sliding grooves 1 to 2 in this embodiment is three, four or more. The adjusting blocks 6 in this embodiment are quadrangular or other irregular shapes, and the inner angle of the adjusting blocks 6 near the center of the suction hole 1-1 depends on the number of the adjusting blocks 6.
The present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents and are included in the scope of the present invention.

Claims (5)

1. An air-suction type precision seed sowing device with adjustable suction hole size comprises a seed sowing shell and a seed sowing disc, wherein the seed sowing shell comprises a first seed sowing shell and a second seed sowing shell, and the seed sowing disc is rotatably connected between the first seed sowing shell and the second seed sowing shell through a rotating shaft; the first seed discharging shell is provided with a seed inlet and a seed outlet, and one side of the second seed discharging shell, which is close to the seed discharging disc, is provided with a negative pressure cavity communicated with a negative pressure providing device; it is characterized in that the preparation method is characterized in that,
an adjusting mechanism for adjusting the actual negative pressure area of the suction hole of the seed discharging disc is arranged between the seed discharging disc and the second seed discharging shell, the adjusting mechanism comprises an adjusting disc and a negative pressure area adjusting assembly, the adjusting disc is rotatably connected to the rotating shaft, and the adjusting disc is fixedly connected with the seed discharging disc through a detachable structure; the adjusting disc is provided with a plurality of adjusting communication holes and a plurality of adjusting driving holes, and the adjusting communication holes and the adjusting driving holes are uniformly arranged along the circumferential direction; the number of the adjusting communication holes and the adjusting driving holes is the same as that of the suction holes; the adjusting communication hole is communicated with the suction hole;
the number of the negative pressure area adjusting assemblies is the same as that of the suction holes, each negative pressure area adjusting assembly comprises a plurality of adjusting blocks which are arranged along the circumferential direction, and two side surfaces of every two adjacent adjusting blocks are attached to each other; each group of negative pressure area adjusting components comprises an adjusting block provided with an adjusting driving part, and the adjusting driving part is matched in the adjusting driving hole;
a plurality of sliding grooves which are arranged along the circumferential direction are arranged on the seed discharging disc at the outer side of the suction holes, and the number of the sliding grooves is the same as that of the adjusting blocks; the adjusting block is provided with a sliding part matched in the sliding groove; wherein, the central space of a plurality of regulating blocks constitutes the variable negative pressure hole, and this variable negative pressure hole is connected with the suction hole.
2. The suction-type precision seed sowing device with adjustable suction hole size of claim 1, wherein two side surfaces of the adjusting block, which are attached to adjacent adjusting blocks, are inclined surfaces, and the two inclined surfaces are oriented in different directions.
3. The suction-type precision seed sowing device with adjustable suction hole size as claimed in claim 1 or 2, wherein the number of the sliding grooves is six; the adjusting blocks are arranged to be regular triangles.
4. The suction-type precision seed sowing device with adjustable suction hole size as claimed in claim 1, wherein the adjustable driving hole is configured as an oblong hole.
5. The air-aspiration type precision seed-metering device with adjustable aspiration hole size as claimed in claim 1, characterized in that the adjusting communicating hole is set as a circular hole, or a long hole, or a circular arc hole;
the size of the adjusting communication hole is larger than that of the suction hole of the seed plate, and the size of the adjusting communication hole is smaller than that of the negative pressure area adjusting assembly in the minimum state.
CN202110429327.0A 2021-04-21 2021-04-21 Air-suction type precision seed sowing device with adjustable suction hole size Active CN113016292B (en)

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Application Number Priority Date Filing Date Title
CN202110429327.0A CN113016292B (en) 2021-04-21 2021-04-21 Air-suction type precision seed sowing device with adjustable suction hole size
ZA2021/08884A ZA202108884B (en) 2021-04-21 2021-11-10 Air suction type precision seed-metering device capable of adjusting suction hole sizes

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Application Number Priority Date Filing Date Title
CN202110429327.0A CN113016292B (en) 2021-04-21 2021-04-21 Air-suction type precision seed sowing device with adjustable suction hole size

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CN113016292B CN113016292B (en) 2022-05-10

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Cited By (1)

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Publication number Priority date Publication date Assignee Title
CN115943781A (en) * 2023-02-10 2023-04-11 东北农业大学 Air-suction type seed sowing device with adjustable seed containing cavity volume

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CN110741785A (en) * 2019-12-02 2020-02-04 东北农业大学 Suction-amount-adjustable seed suction disc for air-suction seed sowing device
AU2020104235A4 (en) * 2020-12-22 2021-03-11 Sichuan Agricultural University A quickly assembled and disassembled Sucking Disc for the Seed Picker

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Publication number Priority date Publication date Assignee Title
CN200997764Y (en) * 2007-01-25 2008-01-02 中国农业大学 Wheat assembled sucking-hole gas-sucking type seeding apparatus
CN201378935Y (en) * 2009-03-18 2010-01-13 东风汽车股份有限公司 Pneumatic precision seed sowing device
CN202232100U (en) * 2011-09-14 2012-05-30 谢宇峰 Air-aspiration type precision seed metering device
CN104349663A (en) * 2012-05-31 2015-02-11 库恩股份有限公司 Distribution box for single seed seed drill with open grooves and seed drill using such box
CN106061238A (en) * 2014-10-09 2016-10-26 马特马克股份公司 An improved seed dispenser for a precision automatic sower
CN204579074U (en) * 2015-03-31 2015-08-26 湖北易欣机械科技有限公司 A kind of radiai adjustment driven sucking precise seeder
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AU2020104235A4 (en) * 2020-12-22 2021-03-11 Sichuan Agricultural University A quickly assembled and disassembled Sucking Disc for the Seed Picker

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115943781A (en) * 2023-02-10 2023-04-11 东北农业大学 Air-suction type seed sowing device with adjustable seed containing cavity volume
CN115943781B (en) * 2023-02-10 2023-06-02 东北农业大学 Air suction type seed metering device with adjustable seed cavity volume

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