CN109451932A - A kind of air-suction seeding unit - Google Patents
A kind of air-suction seeding unit Download PDFInfo
- Publication number
- CN109451932A CN109451932A CN201811557479.3A CN201811557479A CN109451932A CN 109451932 A CN109451932 A CN 109451932A CN 201811557479 A CN201811557479 A CN 201811557479A CN 109451932 A CN109451932 A CN 109451932A
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- China
- Prior art keywords
- seed
- room housing
- discharge plate
- aspiration
- air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000010899 nucleation Methods 0.000 title claims abstract description 28
- 230000001105 regulatory effect Effects 0.000 claims abstract description 10
- 241000237983 Trochidae Species 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 5
- 230000000903 blocking effect Effects 0.000 claims description 4
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 2
- 238000009331 sowing Methods 0.000 abstract description 9
- 238000010586 diagram Methods 0.000 description 6
- 230000007246 mechanism Effects 0.000 description 3
- 240000008042 Zea mays Species 0.000 description 2
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 2
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 235000005822 corn Nutrition 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 240000001931 Ludwigia octovalvis Species 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Sowing (AREA)
Abstract
A kind of air-suction seeding unit, belongs to technical field of seeding devices.It can control motor adjustment revolving speed, to control sowing spacing in the rows, and grasp sown area and application rate.The seed room housing of the seed room housing assembly is detachably fixed and is connect by bottom locking device and top shell fixed spring with the aspiration room housing that aspiration room housing is assembled, external tooth is offered on the discharge plate outer circumference surface of the aspiration room housing assembly, the speed regulating motor is rotated by the gear band dynamic metering plate of a pair of meshing, kind of the device that shaves of the seed room housing is that six vane types shave kind of a device, the feed inlet of seed room housing is equipped with height adjustable charging baffle, seed pushing wheel is equipped in the aspiration room housing, the seed pushing wheel contacts setting with discharge plate.The present invention can be realized high quality precise sowing, have many advantages, such as that uniform simple grain rate height, seeding down, high speed, spacing in the rows are consistent, low broken.
Description
Technical field
The invention belongs to technical field of seeding devices, more particularly to a kind of air-suction seeding unit.
Background technique
Rapidly with national urbanization progress, soil, water and other natural resources will be more rare, therefore, improve unit
The yield of area, with regard to the problem in the urgent need to address at current various countries.And precision agriculture just have in this respect it is very big excellent
Gesture optimizes crop management, improves per mu yield quantity, finally realize agriculture using Information Technology Platform, in conjunction with big data and mechanical equipment
The precision of crop is planted.As the first generalized grain crop, the intelligence sowing of corn is particularly important, and domestic corn is broadcast at present
The feed mechanism for seed of kind machine is all not to be able to satisfy the requirement of information control by land wheel machine driving.
Summary of the invention
In view of the above existing problems in the prior art, the present invention provides a kind of air-suction seeding units, by receiving ground letter
Breath feedback adjusts revolving speed to airborne platform control motor, to control sowing spacing in the rows, and grasps sown area and application rate.
The technical solution used in the present invention is: a kind of air-suction seeding unit, composition include the assembly of seed room housing and
The assembly of aspiration room housing;Described includes the gear that air-suction seeding unit includes speed regulating motor, shell fixed spring and a pair of meshing;
The seed room housing of seed room housing assembly and the aspiration room housing of aspiration room housing assembly by bottom locking device and
Top shell fixed spring is detachably fixed connection, offers on the discharge plate outer circumference surface of the aspiration room housing assembly outer
Tooth, the speed regulating motor are rotated by the gear band dynamic metering plate of a pair of meshing, and kind of the device that shaves of the seed room housing is six
Vane type shaves kind of a device, and the feed inlet of seed room housing is equipped with height adjustable charging baffle, sets in the aspiration room housing
There is seed pushing wheel, the seed pushing wheel contacts setting with discharge plate, and seed pushing wheel is for pushing away kind and preventing discharge plate hole from blocking.
The beneficial effects of the present invention are:
1. the present invention can be realized high quality precise sowing, have uniform simple grain rate height, seeding down, high speed, spacing in the rows consistent, low
The advantages that broken, can adapt to the demand of the intelligent sowing of China's future realization.
2. single seed sowing mechanism of the present invention is all made of speed regulating motor independent control, motor control signal uses GPS and tractor
Speed of travel sensor integrated data simplifies drive mechanism, realizes that stable sowing spacing in the rows and turning spacing in the rows compensate automatically.
Detailed description of the invention
Fig. 1: schematic structural view of the invention;
Fig. 2: Fig. 1 rearview;
Fig. 3: aspirated-air type casing assembling structure schematic diagram of the present invention;
Fig. 4: Fig. 3 main sectional view;
Fig. 5: Fig. 3 top view;
Fig. 6: seed chamber casing assembling structure schematic diagram of the present invention;
Fig. 7: Fig. 6 rearview;
Fig. 8: the present invention shaves kind of an apparatus structure schematic diagram;
Fig. 9: the present invention shaves kind of a device scheme of installation;
Figure 10: seed pushing wheel structural schematic diagram of the present invention;
Figure 11: seed pushing wheel scheme of installation of the present invention;
Figure 12: the present invention feeds barrier structure schematic diagram;
Figure 13: Figure 12 left view;
Figure 14: discharge plate structural schematic diagram of the present invention;
Wherein: 1- speed regulating motor;The assembly of 2- seed room housing;The assembly of 3- aspiration room housing;4- shell fixed spring;5- row
Discharge plate;6-R type lock pin;7- discharge plate locating rack;8- air hose inlet elbow;9- air-suction chamber sealing ring;The adjustment of 10- seeding dish gap
Pad;11- seed pushing wheel;11-1-h type bracket;11-2- idler wheel;11-3- protrusion one;11-4- roller shaft;11-5- protrusion two;12- pad
Piece;The shaft end 13- circlip;14- elastic cylindrical pin;15- star grip knob;16- aspiration room housing;The long block brush of 17- seed;18-
The short block brush of seed;19- seed room housing;20- shaves kind of a device;20-1- blade;Blade under 20-2-;21- shaves kind of a device and fixes
Spring leaf;22- feeds baffle;23- unloads kind of a lid.
Specific embodiment
As shown in Fig. 1~Figure 14, a kind of air-suction seeding unit, composition includes seed room housing assembly 2 and air-suction chamber's shell
Body assembly 3;Described includes the gear that air-suction seeding unit includes speed regulating motor 1, shell fixed spring 4 and a pair of meshing;It is described
The seed room housing 19 of seed room housing assembly 2 and the aspiration room housing 16 of aspiration room housing assembly 3 pass through bottom locking device
Connection, easy to disassemble, replacement component, especially conventional kind pipe and high speed kind pipe are detachably fixed with top shell fixed spring 4
Switching;External tooth is offered on 5 outer circumference surface of discharge plate of the aspiration room housing assembly 3, the speed regulating motor 1 passes through a pair
Meshed gears drives the discharge plate 5 with external tooth to rotate, and kind of the device 20 that shaves of the seed room housing 19 is that six vane types shave
Kind device is close to seeding panel surface without adjusting seed size always, from the top and bottom double action of seed, realizes single
Grain Precision Seeding;The feed inlet of seed room housing 19 is equipped with height adjustable charging baffle 22, adjusts charging gear according to seed size
The position of plate 22 meets the demand of different size seed, prevents seed aerial, guarantees that seed enters seeding with optimal state
Device, the aspiration room housing 16 is interior to be equipped with seed pushing wheel 11, and the seed pushing wheel 11 contacts setting with discharge plate 5, and seed pushing wheel 11 is used for
It pushes away kind and prevents 5 hole of discharge plate from blocking.
The aspiration room housing assembly 3 includes discharge plate 5, discharge plate locating rack 7, air hose inlet elbow 8, air-suction chamber's sealing
9, seeding dish gap adjusting pad 10, seed pushing wheel 11, star grip knob 15 and aspiration room housing 16 are enclosed, is consolidated in the aspiration room housing 16
Surely there is discharge plate locating rack 7, the discharge plate 5 is locked on discharge plate locating rack 7 with R type lock pin 6, air-suction chamber's sealing ring
9 are fixed in 16 inside underside recess of aspiration room housing, and are located at 5 lower section of discharge plate and form closed aspiration with discharge plate 5
Room space, the chimes dish gap adjusting pad 10 are sleeved on 5 locating rack 7 of discharge plate, and are contradicted and be arranged below discharge plate 5,
The seed pushing wheel 11 is fixed on 16 outlet port of aspiration room housing by two 11-5 of protrusion of two sides, 11 surface of seed pushing wheel
The hole of protrusion one 11-3 and discharge plate 5 are consistent, the abutting of seed pushing wheel 11 5 bottom side of discharge plate, the idler wheel on 11 surface of seed pushing wheel,
It prevents 5 hole of discharge plate from blocking, and plays the role of pushing away kind, the star grip knob 15 is arranged outside aspiration room housing 16, star
Shape handle 15 is fixed by the fixed outer end with discharge plate locating rack 7 of elastic cylindrical pin 14, the aspiration room housing 16 and star
Gasket 12 and shaft end circlip 13 are disposed between handle 15, the gasket 12 and shaft end circlip 13 are sleeved on
On elastic cylindrical pin 14, the air hose inlet elbow 8 is mounted on outside aspiration room housing 16.
The seed room housing assembly 2 includes the long block brush 17 of seed, the short block brush 18 of seed, seed room housing 19, shaves kind of a dress
It sets 20, shave kind of a device stationary spring 21, charging baffle 22 and unloading kind of lid 23, the long block brush 17 of the seed and the short block brush 18 of seed
It concatenates and is fixed at 19 exit of seed room housing, and make to form a closed kind subspace in seed room housing 19,
Kind of the device stationary spring 21 that shaves is mounted on top in seed room housing 19, the pedestal clamping for shaving 20 bottom of kind of device
It is shaving inside kind of device stationary spring 21, the bottom unloading kind of lid 23 and being arranged on the outside of 19 arrival end of seed room housing, just
In clear kind.
The hole of the discharge plate 5 is depression.During rotation, play the role of stirring seed, keep seed pine
It dissipates, facilitates seed absorption.
It includes blade 20-1 and lower blade 20-2, upper leaf piece 20-1 and lower blade that six vane type, which shaves kind of a device,
20-2 is setting up and down and is fixed in aspiration room housing 16, and the lower end surface blade 20-1 is set there are three convex leaf, on lower blade 20-2
End face is set there are three convex leaf, and three convex leaves on blade 20-1 are successively staggered with three convex leaves on lower blade 20-2.
It slides up and down and connect inside the charging baffle 22 and aspiration room housing 16.
The seed pushing wheel 11 includes H type bracket 11-1 and idler wheel 11-2, the row of surrounding on the outer circumference surface of the idler wheel 11-2
Multiple raised 11-3 are shown, a multiple raised 11-3 matches setting, the idler wheel 11-2 inserting with the hole of discharge plate 5
On roller shaft 11-4, the roller shaft 11-4 is fixedly mounted on the single pole end of H type bracket 11-1, the H type bracket 11-1's
Two 11-5 of protrusion are equipped on the outside of double rod end.The double rod end of H type bracket 11-1 is connected to air-suction chamber by two two 11-5 of protrusion
On shell 16.
The course of work: seed flows into seed room housing assembly 2 in seed-box, and seed room housing is assembled 2 Hes by discharge plate 5
Aspiration room housing assembly 3 separates, and aspiration room housing assembly 3 is connected by hose with blower, when blower work, makes air-suction chamber's shell
Body assembly 3 generates certain vacuum degree, forms suction at 5 sucker of discharge plate, and seed room housing is assembled the seed inside 2 and is inhaled
Firmly, speed regulating motor 1 drives discharge plate 5 to rotate, and rotates to when shaving kind of position, shaves kind of device 20 and shave off extra seed, only stay
One seed continues to rotate to no suction zone with discharge plate 5, and seed falls into kind of a pipe under the action of seed pushing wheel 11, falls along kind pipe
Enter kind of a ditch, completes sowing whole process.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of air-suction seeding unit, composition includes seed room housing assembly (2) and aspiration room housing assembly (3);Its feature
Be: described includes the gear that air-suction seeding unit includes speed regulating motor (1), shell fixed spring (4) and a pair of meshing;It is described
The aspiration room housing (16) of seed room housing (19) and aspiration the room housing assembly (3) of seed room housing assembly (2) passes through bottom
Locking device and top shell fixed spring (4) are detachably fixed connection, the discharge plate (5) of the aspiration room housing assembly (3)
External tooth is offered on outer circumference surface, the speed regulating motor (1) is rotated by the gear band dynamic metering plate (5) of a pair of meshing, described
Shave kind of a device (20) of seed room housing (19) are that six vane types shave kind of a device, and the feed inlet of seed room housing (19) is equipped with adjustable
The charging baffle (22) of whole height, the aspiration room housing (16) is interior to be equipped with seed pushing wheel (11), the seed pushing wheel (11) and seeding
Disk (5) contact setting, seed pushing wheel (11) is for pushing away kind and preventing discharge plate (5) hole from blocking.
2. a kind of air-suction seeding unit according to claim 1, it is characterised in that: aspiration room housing assembly (3) packet
Include discharge plate (5), discharge plate locating rack (7), air hose inlet elbow (8), air-suction chamber's sealing ring (9), seeding dish gap adjusting pad
(10), seed pushing wheel (11), star grip knob (15) and aspiration room housing (16) are fixed with discharge plate on the aspiration room housing (16)
Locating rack (7), the discharge plate (5) are locked on discharge plate locating rack (7) with R type lock pin (6), air-suction chamber's sealing ring
(9) it is fixed in the internal underside recess of aspiration room housing (16), and is located at below discharge plate (5) and is formed with discharge plate (5) close
The air-suction chamber space closed, the chimes dish gap adjusting pad (10) are sleeved on discharge plate (5) locating rack (7), and contradict setting
Below discharge plate (5), the seed pushing wheel (11) is fixed on aspiration room housing (16) by the protrusion two (11-5) of two sides
Outlet port, the protrusion one (11-3) on seed pushing wheel (11) surface and the hole of discharge plate (5) are consistent, the star grip knob
(15) setting is external in aspiration room housing (16), and star grip knob (15) passes through elastic cylindrical pin (14) fixation and discharge plate locating rack
(7) outer end is fixed, and it is external that the air hose inlet elbow (8) is mounted on aspiration room housing (16).
3. a kind of air-suction seeding unit according to claim 1, it is characterised in that: seed room housing assembly (2) packet
The long block brush of seed (17) is included, the short block brush of seed (18), seed room housing (19), kind of a device (20) is shaved, shaves kind of a device fixed spring
Piece (21) feeds baffle (22) and unloads kind of a lid (23), and the long block brush of seed (17) and the short block brush of seed (18) are concatenated and fixed
It is arranged in seed room housing (19) exit, and makes to form a closed kind subspace in seed room housing (19), it is described to shave
Kind device stationary spring (21) is mounted on top in seed room housing (19), the pedestal clamping for shaving kind of a device (20) bottom
Shaving kind of device stationary spring (21) inside, the bottom unloading kind of lid (23) and being arranged on the outside of seed room housing (19) arrival end
Portion.
4. a kind of air-suction seeding unit according to right 1 or 2, it is characterised in that: the hole of the discharge plate (5) is recessed
Cave.
5. a kind of air-suction seeding unit according to right 1, it is characterised in that: it includes upper leaf that six vane type, which shaves kind of a device,
Piece (20-1) and lower blade (20-2), upper leaf piece (20-1) and lower blade (20-2) are setting up and down and be fixed on air-suction chamber's shell
In body (16), the lower end surface blade (20-1) is set there are three convex leaf, and lower blade (20-2) upper surface sets that there are three convex leaf, blades
Three convex leaves on (20-1) are successively staggered with three convex leaves on lower blade (20-2).
6. a kind of air-suction seeding unit according to right 1, it is characterised in that: the charging baffle (22) and aspiration room housing
(16) internal to slide up and down connection.
7. a kind of air-suction seeding unit according to right 1, it is characterised in that: the seed pushing wheel (11) includes H type bracket
(11-1) and idler wheel (11-2), it is described around being arranged with multiple raised one (11-3) on the outer circumference surface of the idler wheel (11-2)
Multiple raised one (11-3) match setting with the hole of discharge plate (5), and the idler wheel (11-2) is inserted on roller shaft (11-4),
The roller shaft (11-4) is fixedly mounted on the single pole end of H type bracket (11-1), the double rod end outside of the H type bracket (11-1)
It is equipped with two (11-5) of protrusion.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201811557479.3A CN109451932A (en) | 2018-12-19 | 2018-12-19 | A kind of air-suction seeding unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201811557479.3A CN109451932A (en) | 2018-12-19 | 2018-12-19 | A kind of air-suction seeding unit |
Publications (1)
Publication Number | Publication Date |
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CN109451932A true CN109451932A (en) | 2019-03-12 |
Family
ID=65613888
Family Applications (1)
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CN201811557479.3A Withdrawn CN109451932A (en) | 2018-12-19 | 2018-12-19 | A kind of air-suction seeding unit |
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CN (1) | CN109451932A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111742661A (en) * | 2020-07-10 | 2020-10-09 | 中国农业大学 | Mechanical self-suction mechanical seed-shooting and seeding device |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140109813A1 (en) * | 2012-10-23 | 2014-04-24 | Kinze Manufacturing, Inc. | Air seed meter with adjustable singulator |
CN205987723U (en) * | 2016-08-31 | 2017-03-01 | 黑龙江八一农垦大学 | Aspirated-air type electric seed sowing mechanism |
CN107896587A (en) * | 2017-12-19 | 2018-04-13 | 中国农业大学 | A kind of aspirated-air type high speed precise seeder with auxiliary seed-filling effect discharge plate |
CN207733229U (en) * | 2017-10-25 | 2018-08-17 | 中国农业大学 | High-pressure pneumatic blows non-ground contact type feed mechanism for seed |
CN108848803A (en) * | 2018-08-19 | 2018-11-23 | 中国农业大学 | Aspirated-air type and the dual-purpose precise seeder of vapour-pressure type |
CN209314271U (en) * | 2018-12-19 | 2019-08-30 | 黑龙江精播科技开发有限公司 | A kind of air-suction seeding unit |
-
2018
- 2018-12-19 CN CN201811557479.3A patent/CN109451932A/en not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140109813A1 (en) * | 2012-10-23 | 2014-04-24 | Kinze Manufacturing, Inc. | Air seed meter with adjustable singulator |
CN205987723U (en) * | 2016-08-31 | 2017-03-01 | 黑龙江八一农垦大学 | Aspirated-air type electric seed sowing mechanism |
CN207733229U (en) * | 2017-10-25 | 2018-08-17 | 中国农业大学 | High-pressure pneumatic blows non-ground contact type feed mechanism for seed |
CN107896587A (en) * | 2017-12-19 | 2018-04-13 | 中国农业大学 | A kind of aspirated-air type high speed precise seeder with auxiliary seed-filling effect discharge plate |
CN108848803A (en) * | 2018-08-19 | 2018-11-23 | 中国农业大学 | Aspirated-air type and the dual-purpose precise seeder of vapour-pressure type |
CN209314271U (en) * | 2018-12-19 | 2019-08-30 | 黑龙江精播科技开发有限公司 | A kind of air-suction seeding unit |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111742661A (en) * | 2020-07-10 | 2020-10-09 | 中国农业大学 | Mechanical self-suction mechanical seed-shooting and seeding device |
CN111742661B (en) * | 2020-07-10 | 2021-07-27 | 中国农业大学 | Mechanical self-suction mechanical seed-shooting and seeding device |
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Application publication date: 20190312 |