CN109463081A - One kind amount of broadcasting is adjustable aspiration disc type hill-drop feed run - Google Patents
One kind amount of broadcasting is adjustable aspiration disc type hill-drop feed run Download PDFInfo
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- CN109463081A CN109463081A CN201811548433.5A CN201811548433A CN109463081A CN 109463081 A CN109463081 A CN 109463081A CN 201811548433 A CN201811548433 A CN 201811548433A CN 109463081 A CN109463081 A CN 109463081A
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- 230000005540 biological transmission Effects 0.000 claims abstract description 16
- 238000007789 sealing Methods 0.000 claims description 13
- 230000007246 mechanism Effects 0.000 claims description 9
- 238000010899 nucleation Methods 0.000 abstract description 16
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000000903 blocking effect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 11
- 241000196324 Embryophyta Species 0.000 description 7
- 238000009331 sowing Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000001179 sorption measurement Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 241000209094 Oryza Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- HSFWRNGVRCDJHI-UHFFFAOYSA-N Acetylene Chemical compound C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 230000035784 germination Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C7/00—Sowing
- A01C7/20—Parts 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 adjustable aspiration disc type hill-drop feed run of one kind amount of broadcasting disclosed by the invention, including into plants case, be installed on kind of the plate that unloads into plants case lower end, shell, the cover board being adapted to shell is disposed with transmission shaft, quantitative adjustment disk and seeds sucker in shell and cover board；Trapping block is further fixed in shell, shell exterior is provided with air intake duct；Shell, trapping block and quantitative adjustment disk form a sealed air chamber；Air intake duct is connected with sealed air chamber, and transmission shaft passes through shell.When the present invention solves the work of aspirated-air type disc type seeder there are sucker blocking, more for a cave variable seeding demands have that the amount of broadcasting is non-adjustable, cavitation difference.The present invention is adjustable with application rate, the good advantage of cavitation.
Description
Technical field
The invention belongs to agricultural machinery to sow field, systems the adjustable aspiration disc type hill-drop feed run of one kind amount of broadcasting.
Background technique
According to the plantation agriculture requirement of regulation, essence amount cave direct seeding technique refers to seed by the seed number per and hill spacing needed for it
It is required that accurate cavitation be distributed in field, required grain weight when sowing can be saved, germination is neat, Miao Yun.Mechanization essence amount cave
The core work component of direct seeding technique is precise seeder, and mechanical seed sowing device is applied more currently on the market, not for shape
Rule, the seed of population poor fluidity, mechanical seed sowing device ensure the amount of broadcasting often through type hole is expanded, easily cause application rate inclined
Greatly, and easily wound kind, more for a cave different seeding demands, type hole are difficult to adjust.
For example, aspirated-air type cell filed in applicant Shandong Agricultural University on May 25th, 2018 sows feed mechanism for seed, including
Seeder unit shell, drive disk, guiding slotted disk, aspiration disk, forces discharge plate and deposits kind of a shell guide groove tray fixing device；Deposit kind
Shell is connect with seeder unit shell is connected as internal closed space；Seeder unit shell is equipped with air entry；Deposit kind of shell and row
It is successively arranged between kind device shell and forces discharge plate, breath disk, guiding slotted disk, guide groove tray fixing device, drive disk, the axis of rolling
It holds；Although the invention can only pick up a seed, guarantee that spacing in the rows is uniform by being designed for different seeds seeding guide slots
Unanimously, it will not replay and broadcast leakage, meanwhile, under the action of positive pressure and negative pressure, the advantages of clear kind is clean, noresidue, injuring-free seed.But
It, just can quilt when seed resistance suffered by population surface is smaller since inter-species frictional force is big when the aspirated-air type disc type seeder works
Absorption, reduces the effective adsorption range of sucker, and effectively the suction kind time cannot be guaranteed, and it is not advised easily perpendicular to the sucker of disk
Then the tip (such as rice) of seed sucks sucker, so that sucker be caused to block, more for a cave variable seeding demands exist
The problems such as amount of broadcasting is non-adjustable, cavitation is poor.
Summary of the invention
There are sucker blocking when it is an object of the invention to solve the work of aspirated-air type disc type seeder, more for a cave can
The seeding demand of change, there is a problem of the amount of broadcasting is non-adjustable, cavitation difference；The present invention provides one kind amount of broadcasting adjustable aspiration disc type bunch planting
Feed mechanism for seed, cavitation good advantage adjustable with application rate.
In order to achieve the above objectives, technical solution provided by the invention are as follows:
One kind amount of broadcasting of the invention is adjustable aspiration disc type hill-drop feed run, including into plants case, be installed on into plants case lower end
Kind of a plate is unloaded, feed mechanism for seed further includes shell, the cover board being adapted to shell, and transmission shaft, quantitative tune are disposed in shell and cover board
Save disk and seeds sucker；Trapping block is further fixed in shell, shell exterior is provided with air intake duct；Shell, trapping block and quantitative tune
It saves disk and forms a sealed air chamber；Air intake duct is connected with sealed air chamber；Transmission shaft passes through shell.
Preferably, shape trapping block is C-shaped, and trapping block both ends are provided with groove, and the trapping block planar side is equipped with threaded hole.
Preferably, shell is equipped with position adjustment hole and mouth of charging seed, trapping block are assemblied in shell by adjustment hole.
Preferably, end part of driving shaft is equipped with threaded hole, is evenly distributed with pin on transmission shaft end surface.
Preferably, quantitative adjustment disk circumference is equipped with equally distributed adjustment disk location hole and several groups sucker.
Preferably, annular array and equally distributed seeds sucker location hole, inclined hole and convex block on seeds sucker circumference.
Preferably, the working face on convex block is made of guide surface, support kind face, poly- kind of inclined-plane and poly- kind of a plane.
Preferably, adjustment disk and seeds sucker is quantitatively adjusted to be each passed through adjustment disk location hole by bolt and gasket and inhale kind
Disk location hole is successively assemblied on transmission shaft.
Preferably, shell, cover board and the two neighboring convex block of seeds sucker form sealing separate space.
Preferably, the axis projections of inclined hole are on support kind face.
Using technical solution provided by the invention, compared with prior art, have the following beneficial effects:
(1) the adjustable aspiration disc type hill-drop feed run of one kind amount of broadcasting of the invention, the sucker of quantitative every group of different lines of adjustment disk
Number is different, when the relative position difference of seeds sucker inclination sucker and quantitative adjustment disk sucker, seeds sucker part tilt sucker with
Gas chamber is obstructed.When needing to adjust bunch planting amount, sucker disk is rotated, by the relative angle tune for changing seeds sucker and quantitative adjustment disk
Whole every group of effective sucker quantity realizes quantitative adjusting bunch planting amount, and the oblique hole structure on seeds sucker cooperates spoon shape bump position, has
Effect prevents sucker from blocking.
(2) the adjustable aspiration disc type hill-drop feed run of one kind amount of broadcasting of the invention, bump design are spoon shape, are used for assistant inclined-hole
Kind is inhaled, when inhaling kind, kind is pushed away by convex block, sucker is increased and effectively inhales kind of a range, ensured the effective adsorption time of sucker；Clear kind
When, spoon formula convex block support kind, reduce feed mechanism for seed because seed gravity, feed mechanism for seed field random vibration to absorbed seed fastness
Influence；Kind of a time is effectively inhaled by extending inclined hole, improves suction kind reliability.
(3) the adjustable aspiration disc type hill-drop feed run of one kind amount of broadcasting of the invention, shell, cover board and seeds sucker are two neighboring convex
Block forms sealing separate space, and when seed is no longer influenced by adsorption capacity, seed enters sealing separate space, and sealing separate space plays temporary before charging seed
When kinds of bank deposits effect, more for a cave seeding demands, sealing separate space also act as the effect for gathering population, cavitation seeding, have
Have the advantages that Seeding Uniformity is good.Seeding is kept in and gathered by seal compartment cavitation, improves seeding cavitation.
(4) the adjustable aspiration disc type hill-drop feed run of one kind amount of broadcasting of the invention, straight line where the seeds sucker each column sucker center of circle
Radially there is inclination angle relative to disk, avoid the influence because of seed outer dimension, measures part sucker from essence and inhale kind.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the adjustable aspiration disc type hill-drop feed run of amount of broadcasting of the invention；
Fig. 2 is a kind of covering plate structure schematic diagram of the adjustable aspiration disc type hill-drop feed run of amount of broadcasting of the invention；
Fig. 3 is a kind of seeds sucker structural schematic diagram of the adjustable aspiration disc type hill-drop feed run of amount of broadcasting of the invention；
Fig. 4 is that a kind of seeds sucker each column sucker center of circle place of the adjustable aspiration disc type hill-drop feed run of amount of broadcasting of the invention is straight
Line relatively radially inclination angle schematic diagram；
Fig. 5 is a kind of seeds sucker oblique hole structure schematic diagram of the adjustable aspiration disc type hill-drop feed run of amount of broadcasting of the invention；
Fig. 6 is a kind of spoon shape projection cube structure schematic diagram of the adjustable aspiration disc type hill-drop feed run of amount of broadcasting of the invention；
Fig. 7 is a kind of quantitative adjustment disk structural schematic diagram of the adjustable aspiration disc type hill-drop feed run of amount of broadcasting of the invention；
Fig. 8 is a kind of rotation shaft structure schematic diagram of the adjustable aspiration disc type hill-drop feed run of amount of broadcasting of the invention；
Fig. 9 is a kind of trapping block structure schematic diagram of the adjustable aspiration disc type hill-drop feed run of amount of broadcasting of the invention；
Figure 10 is a kind of shell mechanism schematic diagram of the adjustable aspiration disc type hill-drop feed run of amount of broadcasting of the invention
Figure 11 is that a kind of confined space sealing arrangement of compartments of the adjustable aspiration disc type hill-drop feed run of amount of broadcasting of the invention is shown
It is intended to.
Label declaration in schematic diagram:
1, into plants case；
2, kind of a plate is unloaded；
3, cover board；
4, convex block；4a guide surface；4b, support kind face；4c, poly- kind of inclined-plane；4d, poly- kind of plane；
5, seeds sucker；5a, seeds sucker location hole；5b, inclined hole；
6, quantitative adjustment disk；6a, adjustment disk location hole；6b, sucker；
7, bolt；
8, gasket；
9, transmission shaft；
10, shell；10a, adjustment hole；10b, mouth of charging seed；
11, bracket；
12, sprocket wheel；
13, bearing (ball) cover；
14, axis circlip；
15, first bearing；
16, sleeve；
17, second bearing；
18, air intake duct；
19, trapping block；191, groove；192, threaded hole；
20, pin；
30, separate space is sealed.
Specific embodiment
To facilitate the understanding of the present invention, a more comprehensive description of the invention is given in the following sections with reference to the relevant attached drawings, in attached drawing
Several embodiments of the invention are given, still, the invention can be realized in many different forms, however it is not limited to this paper institute
The embodiment of description, on the contrary, purpose of providing these embodiments is make it is more thorough and comprehensive to the disclosure.
It should be noted that it can directly on the other element when element is referred to as " being fixedly arranged on " another element
Or there may also be elements placed in the middle；When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements；Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement are for illustrative purposes only.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical；Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention；Term " and or " used herein includes one or more phases
Any and all combinations of the listed item of pass.
Referring to shown in attached drawing 1 and Figure 11, the amount of broadcasting of the present embodiment is adjustable aspiration disc type hill-drop feed run includes into plants case 1,
It is installed on into 1 lower end of plants case and unloads kind of plate 2, shell 10, the cover board 3 being adapted to shell 10 is set gradually in shell 10 and cover board 3
There are transmission shaft 9, quantitative adjustment disk 6 and seeds sucker 5；It is further fixed on trapping block 19 in shell 10, is provided with air-breathing outside shell 10
Pipe 18；Shell 10, trapping block 19 and quantitative adjustment disk 6 form a sealed air chamber；Air intake duct 18 is connected with sealed air chamber；
Shell 10, which is bolted, to be assemblied on bracket 11, and cover board 3, which is bolted, is assemblied in shell 10 close to the end of seeds sucker 5
Portion.Shell 10, cover board 3 and the two neighboring convex block 4 of seeds sucker 5 form sealing separate space 30, when seed is no longer influenced by adsorption capacity, kind
Son has entered sealing separate space 30, and sealing separate space 30 plays the role of the temporary kinds of bank deposits before charging seed, and more for a cave seedings need
It asks, sealing separate space 30 also acts as the effect for gathering population, cavitation seeding, improves Seeding Uniformity.
Transmission shaft 9 passes through shell 10, and is equipped with sprocket wheel 12, bearing (ball) cover 13, axis card from outside to inside on transmission shaft 9
Spring 14, first bearing 15, sleeve 16 and second bearing 17.The sucker number of quantitative 6 every groups of different lines of adjustment disk is different, seeds sucker
When the relative angle difference of 5 angling holes and quantitative 6 sucker of adjustment disk, 5 part angling hole of seeds sucker and gas chamber are obstructed.When needing to adjust
When saving bunch planting amount, seeds sucker 5 is rotated, the relative angle by changing seeds sucker 5 and quantitative adjustment disk 6 adjusts every group of effective sucker
Quantity realizes the adjusting of every cave sowing quantity.
Prior to seeding, when needing to adjust gas chamber position, bolt 7 is unscrewed first, changes threaded hole in C-shaped trapping block 19
191 position relative to position adjustment hole 10a in shell 10.And then screwing bolts 7.When needing to adjust bunch planting amount, according to
Bunch planting amount demand rotates seeds sucker 5, and the relative angle by changing seeds sucker 5 and quantitative adjustment disk 6 adjusts every group of effective sucker
Quantity finally realizes the adjusting of every cave sowing quantity；It should be noted that adjustment disk has the straight sucker of even number set, preferably 12 groups, often
Three column of group, the straight sucker of each column have one, two, three, for 12 groups, each column interval angles 360/ (12*3)=10 ° respectively；Inhale kind
There are the oblique sucker of even number set, preferably 12 groups, every group one column, the oblique sucker of each column three, 360/12=30 ° of each column interval angles in disk.
Therefore seeds sucker location hole even circumferential distribution nine, 360/9=40 °, such as: bunch planting amount three, turn 40 ° of bunch planting amounts of seeds sucker
Two are tuned into, then turns 40 ° of bunch planting amounts and is just tuned into one.
When planting seeds, blower is opened, from into plants case 1 into kind of a space is filled, the spoon shape convex block 4 on seeds sucker 5 pushes seed
Population movement, while guiding seed is to be adsorbed posture, 5 every groups of sucker circle center line connectings of seeds sucker it is opposite through to inclined angle alpha, need
It should be noted that the range at the angle α is 0-8 °, avoiding can not be not adsorbed because seed outer dimension is excessive by essence amount absorption
Seed fallen from the support kind face 4b of spoon shape convex block 4 by being self-possessed, when seed is transferred to sealing space, gas chamber is by C-shaped trapping block
19 block, and seed falls by self weight and gathers on poly- kind of the plane 4d for being deposited in spoon shape convex block 4, finally from mouth discharge of charging seed.
As shown in figures 3 to 6, seeds sucker 5 shown in figure, including location hole 5a and inclined hole 5b are set on 5 circumference of seeds sucker
There are equally distributed location hole 5a, inclined hole 5b and convex block 4, wherein location hole 5a is specifically the week that annular array is distributed in axis hole
It encloses；Convex block 4 is designed as a spoon shape, and working surface is divided into guide surface 4a, support kind face 4b, poly- kind of inclined-plane 4c and poly- kind of plane 4d.Tiltedly
Hole 5b is specifically set to the root of each guide surface 4a and support kind face 4b, and is set to the root of each guide surface 4a and support kind face 4b
The quantity of portion inclined hole 5b is multiple row, preferably 3 column in the present embodiment, and each column has 1,2,3 sucker respectively, where each column sucker center of circle
Straight line is radially provided with tilt angle relative to disk.And inclined hole 5b axis projections are planted on the 4b of face in support, to prevent seeds having abnormal
Tip (such as rice) suck sucker, cause sucker to block.4 guide surface 4a of convex block is for guiding seed to be adsorbed posture, to mention
High-precision amount inhales kind of a performance.When inhaling kind, convex block 4 pushes away kind, increases sucker and effectively inhales kind of a range, has ensured that sucker is effectively adsorbed
Time；At clear kind, 4 support kind of convex block reduces random vibration of the feed mechanism for seed because of seed gravity, feed mechanism for seed in field and plants to absorption
The influence of sub- fastness.
Referring to shown in Fig. 7 and Fig. 8, quantitative adjustment disk 6 and seeds sucker 5 pass through bolt 7 and gasket 8 across location hole 6a and 5a
Successively it is assemblied in one end that transmission shaft 9 is equipped with threaded hole.
Shown in Fig. 9-Figure 10, shell 10, trapping block 19 and quantitative adjustment disk 6 form a sealed air chamber, trapping block 19
Shape be designed as C-shaped, when needing to adjust gas chamber position, unscrew bolt, change 19 threaded hole of C-shaped trapping block relative to shell
The position of adjustment hole, screwing bolts, the final adjusting for realizing gas chamber position.Shell 10 is equipped with air intake duct 18 and sealing by welding
Gas chamber communicates, and in Fig. 9,19 both ends of C-shaped trapping block are indent arc-shaped 192, and 19 planar side of C-shaped trapping block is equipped with threaded hole
191；In Figure 10, shell 10 is equipped with adjustment hole 10a and mouthful 10b that charges seed, and C-shaped trapping block 19 is filled by position adjustment hole 10a
Assigned in shell 10.
Certain embodiment of the invention above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
Limitations on the scope of the patent of the present invention therefore cannot be interpreted as；It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention
Protect range；Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. one kind amount of broadcasting is adjustable aspiration disc type hill-drop feed run, including into plants case (1), be installed on into plants case (1) lower end and unload kind
Plate (2), it is characterised in that: the feed mechanism for seed further includes shell (10), the cover board (3) being adapted to shell (10), the shell
(10) and in cover board (3) transmission shaft (9), quantitative adjustment disk (6) and seeds sucker (5) are disposed with；In the shell (10) also
It is fixed with trapping block (19), is provided with air intake duct (18) outside the shell (10)；The shell (10), trapping block (19) and
Quantitative adjustment disk (6) form a sealed air chamber；The air intake duct (18) is connected with sealed air chamber；The transmission shaft (9) is worn
Cross shell (10).
2. the adjustable aspiration disc type hill-drop feed run of the amount of broadcasting according to claim 1, it is characterised in that: the trapping block (19)
For C-shaped, trapping block (19) both ends are provided with groove (191), and trapping block (19) planar side is equipped with threaded hole (192).
3. the adjustable aspiration disc type hill-drop feed run of the amount of broadcasting according to claim 2, it is characterised in that: on the shell (10)
Equipped with position adjustment hole (10a) and mouth of charging seed (10b), the trapping block (19) is assemblied in shell (10) by adjustment hole (10a)
It is interior.
4. the adjustable aspiration disc type hill-drop feed run of the amount of broadcasting according to claim 3, it is characterised in that: the transmission shaft (9)
End is equipped with threaded hole (901), is evenly distributed with pin (20) on transmission shaft (9) end face.
5. the adjustable aspiration disc type hill-drop feed run of the amount of broadcasting according to claim 4, it is characterised in that: the quantitative adjustment disk
(6) circumference is equipped with equally distributed adjustment disk location hole (6a) and sucker (6b).
6. the adjustable aspiration disc type hill-drop feed run of the amount of broadcasting according to claim 5, it is characterised in that: the seeds sucker (5)
Annular array and equally distributed seeds sucker location hole (5a), inclined hole (5b) and convex block (4) on circumference.
7. the adjustable aspiration disc type hill-drop feed run of the amount of broadcasting according to claim 6, it is characterised in that: on the convex block (4)
Working face by guide surface (4a), support kind of face (4b), poly- kind of inclined-plane (4c) and gather kind of plane (4d) and form.
8. the adjustable aspiration disc type hill-drop feed run of the amount of broadcasting according to claim 6 or 7, it is characterised in that: the quantitative tune
It saves adjustment disk (6) and seeds sucker (5) and adjustment disk location hole (6a) and seeds sucker location hole is each passed through by bolt and gasket
(5a) is successively assemblied on transmission shaft (9).
9. the adjustable aspiration disc type hill-drop feed run of the amount of broadcasting according to claim 8, it is characterised in that: the shell (10),
Cover board (3) and seeds sucker (5) two neighboring convex block (4) form sealing separate space (30).
10. the adjustable aspiration disc type hill-drop feed run of the amount of broadcasting according to claim 9, it is characterised in that: the inclined hole (5b)
Axis projections in support kind of face (4b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811548433.5A CN109463081A (en) | 2018-12-18 | 2018-12-18 | One kind amount of broadcasting is adjustable aspiration disc type hill-drop feed run |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811548433.5A CN109463081A (en) | 2018-12-18 | 2018-12-18 | One kind amount of broadcasting is adjustable aspiration disc type hill-drop feed run |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109463081A true CN109463081A (en) | 2019-03-15 |
Family
ID=65676347
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811548433.5A Pending CN109463081A (en) | 2018-12-18 | 2018-12-18 | One kind amount of broadcasting is adjustable aspiration disc type hill-drop feed run |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109644631A (en) * | 2019-01-23 | 2019-04-19 | 华南农业大学 | The integrated Pneumatic type rice feed mechanism for seed in one discharge plate room |
| CN110073774A (en) * | 2019-05-14 | 2019-08-02 | 安徽农业大学 | A kind of spherical shape seed dual-purpose type precise seeder |
| CN110149848A (en) * | 2019-06-27 | 2019-08-23 | 石河子大学 | A kind of strength mechanical combined type feed mechanism for seed |
| CN110583177A (en) * | 2019-09-26 | 2019-12-20 | 安徽农业大学 | Internal suction type double-impeller seed guiding device of hole sowing seed sowing device and using method thereof |
| CN110972635A (en) * | 2019-07-02 | 2020-04-10 | 青岛农业大学 | Seeding-adjustable corn plot precision seed-metering disc and use method thereof |
| CN111512751A (en) * | 2020-04-30 | 2020-08-11 | 山东省农业机械科学研究院 | Combined seed throwing device and air-aspiration type seed throwing device |
| CN111699793A (en) * | 2020-06-28 | 2020-09-25 | 华中农业大学 | Small-particle-size seed self-cleaning type hole wheel type hill-drop seed sowing device |
| US20210051841A1 (en) * | 2019-08-19 | 2021-02-25 | Ag Leader Technology | Adjustable Seed Meter and Related Systems and Methods |
| CN115316083A (en) * | 2022-09-30 | 2022-11-11 | 黑龙江北大荒现代农业服务集团众荣农机有限公司 | Electric air-blowing type single-double seedling sowing device |
| CN115606370A (en) * | 2022-12-05 | 2023-01-17 | 安徽农业大学 | Combined cavity channel type rice precision hole direct seeding seed discharging disc |
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| CN108633410A (en) * | 2018-04-11 | 2018-10-12 | 山东农业大学 | A kind of Pneumatic bucket wheel combined seed-sowing mechanism of virus-free miniature potato |
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