CN103563524A - Pneumatic sowing and seed discharging system - Google Patents
Pneumatic sowing and seed discharging system Download PDFInfo
- Publication number
- CN103563524A CN103563524A CN201310137792.2A CN201310137792A CN103563524A CN 103563524 A CN103563524 A CN 103563524A CN 201310137792 A CN201310137792 A CN 201310137792A CN 103563524 A CN103563524 A CN 103563524A
- Authority
- CN
- China
- Prior art keywords
- sowing
- seed
- rotary drum
- sowing rotary
- 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.)
- Pending
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C7/00—Sowing
- A01C7/04—Single-grain seeders with or without suction devices
- A01C7/042—Single-grain seeders with or without suction devices using pneumatic means
- A01C7/044—Pneumatic seed wheels
Abstract
The invention provides a pneumatic sowing and seed discharging system, wherein a sowing roller is driven by a governor motor to rotate around an air sucking and blowing pipe, negative pressure is generated in a suction hole of the sowing roller through a suction ventilator connected with an air suction pipe, seeds are adsorbed in a seed box, excessive seeds are blown away from a seed cleaning air blowing hole in a seed cleaning device corresponding to an annular projection on the sowing roller, the adsorbed seeds are blown into a seed shunt hole of a shunt accelerator through a strip-shaped air blowing opening connected to a blower, and the seeds are accelerated by air flow blown out from the shunt accelerator and are discharged to appointed positions through a seed discharging duct. The pneumatic seed cleaning device provided by the invention prevents the seeds from being scratched, the outer wall of the sowing roller is wavy, so that only one seed is adsorbed in the suction hole of each sowing roller, the seeds are uniformly discharged and are accelerated by the shunt accelerator to reduce the repeated sowing and sowing leakage phenomena, and sowing row, sowing line spacing and sowing row spacing can be conveniently adjusted to achieve multi-row work of one machine.
Description
Technical field
The invention belongs to agricultural seeder machinery technical field, particularly a kind of employing pneumatic type sowing metering system.
Background technology
Precisely seeding system is member the most key in modern agriculture seeding machinery and seedling machinery, adopt of sowing rotary drum equalled cylinder sucker more, very easily cause many xenities of a hole absorption, adopt suction nozzle, because suction nozzle is higher than sowing rotary drum, gapped between suction nozzle, rotate sowing rotary drum, suction nozzle very easily produces and carves bad xenity in seed-box, plant spacing little of deadweight whereabouts, be easy to produce seed and replay or broadcast leakage, more clear kind adopts round brush or scrapes stripping mode, especially granule and seeds having abnormal is difficult to accomplish simple grain seeding.
Summary of the invention
the shortcoming that the object of the invention is to overcome prior art, with not enough, provides a kind of structural design advantages of simple, the pneumatic type sowing metering system that sowing performance is high.
another object of the present invention is to provide a kind of pneumatic type sowing seed feeding method.
the present invention is achieved through the following technical solutions.
pneumatic type sowing metering system comprises: the air intake duct connecting at induced-draught fan is communicated with frame, on the gas blow pipe connection frame that hair-dryer connects, be fixedly connected with air-breathing gas blow pipe, cleaning device, divide flow accelerator, on air-breathing gas blow pipe, cover has the sowing rotary drum that can rotate around air-breathing gas blow pipe, sowing rotary drum is connected with governor motor, and seed-box is semi-surrounding shape at side and the sowing rotary drum of sowing rotary drum, on minute flow accelerator, connects seed metering guide tube.
it is the tubular body of an end opening that described air intake duct is communicated with frame, at air intake duct, is communicated with on frame and is provided with a ventilation hole, and the openend that is communicated with frame at air intake duct connects induced-draught fan, is communicated with the air intake duct that connects air-breathing gas blow pipe on frame ventilation hole at air intake duct.
it is the tubular body of an end opening that described gas blow pipe is communicated with frame, at gas blow pipe, is communicated with on frame and is provided with three ventilation holes, and the openend that is communicated with frame at gas blow pipe connects hair-dryer, at gas blow pipe, be communicated with on three ventilation holes of frame, the gas blow pipe that connects respectively air-breathing gas blow pipe, cleaning device, minute flow accelerator.
in the middle of air intake duct on described air-breathing gas blow pipe and gas blow pipe, be provided with pipe every, on air intake duct, be provided with suction hole, on gas blow pipe, be provided with gas hole, on gas hole one side draught air-blowing tracheae, be provided with bar shaped inflatable mouth.
bar shaped inflatable mouth is facing to the seed tap hole of minute flow accelerator, and four limits and the sowing rotary drum inwall of bar shaped inflatable mouth match.
described sowing rotary drum outer wall is in wave shape, is uniformly distributed the sowing rotary drum sucker that several communicate with inner chamber on the annular protrusion of sowing rotary drum.
between the two ends of sowing rotary drum and air-breathing gas blow pipe, by bearing, governor motor, be connected.
described cleaning device is tubular body, clear kind in adjusting device, is being provided with control valve, plants gas hole clearly, plants clearly gas hole corresponding with sowing rotary drum annular protrusion, plants clearly the power of blowing of gas hole by control valve adjustment.
the tube chamber of described minute flow accelerator is provided with the seed tap hole corresponding with sowing rotary drum annular protrusion outward, is provided with the shunting corresponding with seed tap hole and accelerates gas hole on shunting accelerator tube chamber, and seed tap hole accelerates gas hole with shunting and communicates.
seed tap hole at minute flow accelerator accelerates to be connected seed metering guide tube on jointly portalling of gas hole with shunting.
seed-box is semi-surrounding shape at position, negative pressuren zone and the sowing rotary drum of the side of sowing rotary drum, seed-box is arranged on cleaning device and divides on the connecting partition of flow accelerator, corresponding with sowing rotary drum annular protrusion, seed-box can be take tie point and be rotated on axially on connecting partition.
the operation principle of pneumatic type sowing metering system.
in sowing rotary drum, the air intake duct of air-breathing gas blow pipe is communicated with frame by air intake duct and is connected with induced-draught fan, makes the bar shaped inflatable mouth outside on air-breathing gas blow pipe form negative pressuren zone, makes the sowing rotary drum sucker of sowing rotary drum negative pressuren zone produce suction.
in sowing rotary drum, the gas blow pipe of air-breathing gas blow pipe is communicated with frame by gas blow pipe and is connected with hair-dryer, makes the bar shaped inflatable mouth inner side on air-breathing gas blow pipe form zone of positive pressure, makes the sowing rotary drum sucker of sowing rotary drum zone of positive pressure produce the power of blowing.
sowing rotary drum is driven around air-breathing gas blow pipe and is rotated by governor motor, sowing rotary drum sucker by negative pressuren zone to zone of positive pressure, then by zone of positive pressure to negative pressuren zone cycle rotation, realize at negative pressuren zone absorbed seed, in zone of positive pressure seeding operation.
by regulating the rotating speed of governor motor to change sowing rotary drum rotating speed, adjust sowing spacing in the rows.
cleaning device is communicated with frame by gas blow pipe and is connected with hair-dryer, make to plant clearly the air-flow that gas hole blows out sowing rotary drum annular protrusion is produced to the power of blowing, the sowing rotary drum outer wall sowing rotary drum sucker adsorption area that reduced in wave shape, by the power of blowing of clear kind of gas hole, in sowing rotary drum sucker, the not strong seed of absorption is blown off, and makes only to adsorb in each sowing rotary drum sucker a seed.
by rotating seed-box, pour out seed, block sowing rotary drum sucker, make sowing rotary drum sucker not absorbed seed adjust sowing line number.
bar shaped inflatable mouth on air-breathing gas blow pipe is facing to a minute flow accelerator seed tap hole, and the seed of sowing rotary drum sucker absorption is blown in the seed tap hole on minute flow accelerator by sowing rotary drum sucker by the positive pressure gas stream in bar shaped inflatable mouth.
dividing flow accelerator to be communicated with frame by gas blow pipe is connected with hair-dryer, the air-flow that shunting acceleration gas hole is blown out produces the power of blowing, seed in seed tap hole is shunted to accelerate the air-flow that gas hole blows out and accelerates, and seed is displaced into assigned address by the air-flow in seed metering guide tube.
by changing the spacing of the seed metering guide tube port of export, adjust sowing row square.
compared with prior art, the advantage of this pneumatic type sowing metering system is: reasonable in design, stable and reliable working performance, adopt strength to plant clearly facility, avoid carving and hinder seed, make each sowing rotary drum sucker only adsorb a seed, seeds fall is evenly accelerated by a minute flow accelerator again, reduce and replay, broadcast leakage phenomenon, can adjust sowing line number easily, sowing line-spacing, sowing spacing in the rows, realizes a machine multirow operation.
Accompanying drawing explanation
fig. 1 is pneumatic type sowing metering system structure orthogonal view.
fig. 2 is pneumatic type sowing metering system structure side profile.
as shown in Figure 1 and Figure 2, induced-draught fan 1, air intake duct be communicated with frame 2, hair-dryer 3, gas blow pipe be communicated with frame 4, air-breathing gas blow pipe 5, air intake duct 51, gas blow pipe 52, suction hole 53, gas hole 54, pipe every 55, bar shaped inflatable mouth 56, cleaning device 6, control valve 61, plant gas hole 62, minute flow accelerator 7, seed tap hole 71, shunting clearly and accelerate gas hole 72, sowing rotary drum 8, sowing rotary drum annular protrusion 81, sowing rotary drum sucker 82, governor motor 9, seed-box 10, seed metering guide tube 11, connecting partition 12, bearing 13.
Embodiment
under induced-draught fan 1, hair-dryer 2, governor motor 9 duties.
as shown in Figure 1 and Figure 2, sowing rotary drum 8, under the drive of governor motor 9, rotates around air-breathing gas blow pipe 5, and sowing rotary drum sucker 82 is rotated from bottom to top in seed-box 11.
because being communicated with frame 2 by air intake duct, the air intake duct 51 of air-breathing gas blow pipe 5 is connected with induced-draught fan 1, suction hole 53 by air intake duct 51 in sowing rotary drum 8 makes bar shaped inflatable mouth 56 formation negative pressuren zones, outside, make the sowing rotary drum sucker 82 of sowing rotary drum negative pressuren zone produce suction, sowing rotary drum sucker 82 is at the interior absorbed seed of seed-box 11.
when the seed being adsorbed turns to clear kind of gas hole 62 correspondence position on cleaning device 6 along with sowing rotary drum 8, because being communicated with frame 4 by gas blow pipe, cleaning device 6 is connected with hair-dryer 3, air-flow is by the barometric damper 61 on cleaning device 6, make air-flow produce by clear kind of gas hole 62 power of blowing, make a seed of 82 of each sowing rotary drum suckers absorption, on sowing rotary drum 8, unnecessary seed is blown off back in seed-box 11 by air-flow.
when the seed being adsorbed turns to seed tap hole 71 correspondence position of minute flow accelerator 7 along with sowing rotary drum 8, because being communicated with frame 4 by gas blow pipe, the gas blow pipe 52 of air-breathing gas blow pipe 5 is connected with hair-dryer 3, in sowing rotary drum 8, by gas hole 54, make bar shaped inflatable mouth 56 inner sides form zone of positive pressure, make the sowing rotary drum sucker 82 that the interior bar shaped inflatable mouth of sowing rotary drum 8 56 inner sides face toward produce the power of blowing, seed is blown in the seed tap hole 71 of minute flow accelerator 7 by sowing rotary drum sucker 82 by the interior positive pressure gas stream of the bar shaped inflatable mouth 56 on air-breathing gas blow pipe 5.
because a minute flow accelerator 7 is communicated with frame 4 by gas blow pipe, be connected with hair-dryer 3, the seed in the seed tap hole 71 that divides flow accelerator 7 is shunted the air-flow that acceleration gas hole 72 blows out and is accelerated, and seed is displaced into assigned address by the air-flow in seed metering guide tube 11.
by rotating seed-box 10, pour out seed, block sowing rotary drum sucker 82, make sowing rotary drum sucker 82 not absorbed seed adjust sowing line number.
sowing rotary drum 8 is connected with governor motor 9, by regulating the rotating speed of governor motor 9 to change sowing rotary drum 8 rotating speeds, adjusts sowing spacing in the rows.
by changing the spacing of seed metering guide tube 11 ports of export, adjust sowing line-spacing.
Claims (8)
1. a pneumatic type is sowed metering system, comprise: the air intake duct connecting at induced-draught fan (1) is communicated with frame (2), on the gas blow pipe connection frame (4) that hair-dryer (3) connects, be fixedly connected with air-breathing gas blow pipe (5), cleaning device (6), divide flow accelerator (7), at the upper cover of air-breathing gas blow pipe (5), there is sowing rotary drum (8), sowing rotary drum (8), governor motor (9), seed-box (10) is semi-surrounding shape at side and the sowing rotary drum (8) of sowing rotary drum (8), the upper seed metering guide tube (11) that connects of minute flow accelerator (7).
2. pneumatic type according to claim 1 is sowed metering system, it is characterized in that, air intake duct (51) on described air-breathing gas blow pipe (5) is provided with pipe every (55) with gas blow pipe (52) is middle, on air intake duct (51), be provided with suction hole (53), on gas blow pipe (52), be provided with gas hole (54), on gas hole (54) one side draught air-blowing tracheaes (5), be provided with bar shaped inflatable mouth (56).
3. pneumatic type according to claim 2 is sowed metering system, it is characterized in that, described bar shaped inflatable mouth (56) is facing to the seed tap hole (71) on minute flow accelerator (7), and four limits of bar shaped inflatable mouth (56) and sowing rotary drum (8) inwall match.
4. pneumatic type sowing metering system according to claim 1, is characterized in that, described sowing rotary drum (8) outer wall is wave mode, is uniformly distributed the sowing rotary drum sucker (82) that several communicate with inner chamber on sowing rotary drum annular protrusion (81).
5. pneumatic type according to claim 1 sowing metering system, is characterized in that, described cleaning device (6) is provided with barometric damper (61), plants gas hole (62) clearly, plants clearly gas hole (62) relative with sowing rotary drum annular protrusion (81).
6. pneumatic type according to claim 1 is sowed metering system, it is characterized in that, a described minute flow accelerator (7) is provided with the seed tap hole (71) corresponding with sowing rotary drum annular protrusion (81), gas hole (72) is accelerated in shunting, and seed tap hole (71) accelerates gas hole (72) with shunting and communicates.
7. pneumatic type according to claim 1 is sowed metering system, it is characterized in that, it is upper with the connecting partition (12) of minute flow accelerator (7) that described seed-box (10) is arranged on cleaning device (6), and seed-box (10) is corresponding with sowing rotary drum annular protrusion (81).
8. pneumatic type according to claim 1 sowing metering system, is characterized in that, between described sowing rotary drum (8) and air-breathing gas blow pipe (5), by bearing (13), governor motor (9), is connected.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310137792.2A CN103563524A (en) | 2013-04-21 | 2013-04-21 | Pneumatic sowing and seed discharging system |
| CN201420190778.9U CN204157264U (en) | 2013-04-21 | 2014-04-20 | Pneumatic type sowing metering system |
| PCT/CN2014/075756 WO2014173261A1 (en) | 2013-04-21 | 2014-04-20 | Pneumatic sowing and seed discharging system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310137792.2A CN103563524A (en) | 2013-04-21 | 2013-04-21 | Pneumatic sowing and seed discharging system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103563524A true CN103563524A (en) | 2014-02-12 |
Family
ID=50036926
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310137792.2A Pending CN103563524A (en) | 2013-04-21 | 2013-04-21 | Pneumatic sowing and seed discharging system |
| CN201420190778.9U Expired - Fee Related CN204157264U (en) | 2013-04-21 | 2014-04-20 | Pneumatic type sowing metering system |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420190778.9U Expired - Fee Related CN204157264U (en) | 2013-04-21 | 2014-04-20 | Pneumatic type sowing metering system |
Country Status (2)
| Country | Link |
|---|---|
| CN (2) | CN103563524A (en) |
| WO (1) | WO2014173261A1 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103975671A (en) * | 2014-05-23 | 2014-08-13 | 浙江博仁工贸有限公司 | Precision seeder capable of realizing synchronous transmission of conveying and rotary drum |
| CN104094708A (en) * | 2014-06-30 | 2014-10-15 | 同济大学 | Pneumatic seed tray device for drum-type seeder |
| WO2014173261A1 (en) * | 2013-04-21 | 2014-10-30 | Liu Baocai | Pneumatic sowing and seed discharging system |
| CN107736112A (en) * | 2017-12-01 | 2018-02-27 | 南京农业大学 | A kind of mechanical strength combined type vegetables precise seeder |
| CN107912114A (en) * | 2017-12-29 | 2018-04-17 | 山东大华机械有限公司 | A kind of sowing wind turbine |
| CN108432413A (en) * | 2018-04-08 | 2018-08-24 | 珠海羽人农业航空有限公司 | A kind of live streaming unit |
| CN110073780A (en) * | 2019-05-29 | 2019-08-02 | 河南农业大学 | A kind of Cell wheel feed cleaning device |
| CN115589814A (en) * | 2022-11-14 | 2023-01-13 | 吉林大学（Cn） | Rice dry direct seeding outer fluted wheel type seed sowing device based on image recognition |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106508207B (en) * | 2016-09-21 | 2018-11-06 | 华中农业大学 | The outer seed filling type essence quantity set of aspiration arranges device |
| CN106941824B (en) * | 2017-05-04 | 2023-03-28 | 安徽农业大学 | Pneumatic type precise seed sowing device with adjustable sowing quantity |
| CN107750532A (en) * | 2017-10-13 | 2018-03-06 | 齐齐哈尔大学 | A kind of vapour-pressure type automatic sowing device |
| CN108432421B (en) * | 2018-06-15 | 2020-07-28 | 中国农业大学 | Sectional type air suction and air blowing distribution mechanism for precision seed sowing device |
| CN109168453A (en) * | 2018-09-19 | 2019-01-11 | 安徽农业大学 | A kind of Pneumatic type feed mechanism and its strength band of application send formula essence amount dispenser |
| CN110192460B (en) * | 2019-05-28 | 2024-04-09 | 青岛农业大学 | Pneumatic shaft needle hole type precise seed sowing device |
| CN110447355B (en) * | 2019-09-06 | 2021-11-19 | 湖南农业大学 | Mechanical pneumatic universal seed metering device |
| CN110447354B (en) * | 2019-09-06 | 2021-11-19 | 湖南农业大学 | Mechanical pneumatic universal seed discharging method |
| CN111406476A (en) * | 2020-03-09 | 2020-07-14 | 青岛普兰泰克机械科技有限公司 | Seed sowing device and method for small-seed cell breeding and precision sowing |
| CN112024514A (en) * | 2020-07-08 | 2020-12-04 | 安徽省钗源苦荞麦制品有限责任公司 | Be applied to cleaning equipment of tartary buckwheat |
| CN112880990B (en) * | 2021-01-11 | 2023-06-23 | 浙江理工大学 | Air-blowing seed supply stability testing device for different seeds |
| CN112655324A (en) * | 2021-01-27 | 2021-04-16 | 黄淮学院 | Pneumatic precision high-efficiency seed-damaging-free seed sowing device |
| CN115777302A (en) * | 2022-11-21 | 2023-03-14 | 华南农业大学 | Air suction belt type rice seed sowing device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5601209A (en) * | 1995-07-10 | 1997-02-11 | Morris Industries, Ltd. | Seed metering apparatus |
| JP2009065850A (en) * | 2007-09-11 | 2009-04-02 | National Agriculture & Food Research Organization | Hill seeder |
| CN101292582B (en) * | 2008-06-17 | 2010-06-02 | 台州市科丰农机设备制造厂 | Air-suction air-blow drum-type rice industrial sprout cultivation planter |
| JP2010172320A (en) * | 2009-02-02 | 2010-08-12 | National Agriculture & Food Research Organization | Seeding machine |
| CN202663774U (en) * | 2012-06-29 | 2013-01-16 | 西安圣华电子工程有限责任公司 | Component capable of realizing precise dibbling |
| CN103563524A (en) * | 2013-04-21 | 2014-02-12 | 刘宝才 | Pneumatic sowing and seed discharging system |
-
2013
- 2013-04-21 CN CN201310137792.2A patent/CN103563524A/en active Pending
-
2014
- 2014-04-20 CN CN201420190778.9U patent/CN204157264U/en not_active Expired - Fee Related
- 2014-04-20 WO PCT/CN2014/075756 patent/WO2014173261A1/en active Application Filing
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014173261A1 (en) * | 2013-04-21 | 2014-10-30 | Liu Baocai | Pneumatic sowing and seed discharging system |
| CN103975671A (en) * | 2014-05-23 | 2014-08-13 | 浙江博仁工贸有限公司 | Precision seeder capable of realizing synchronous transmission of conveying and rotary drum |
| CN103975671B (en) * | 2014-05-23 | 2016-08-24 | 浙江博仁工贸有限公司 | Conveying and the seed precision seeder sowing Synchronous Transmission |
| CN104094708A (en) * | 2014-06-30 | 2014-10-15 | 同济大学 | Pneumatic seed tray device for drum-type seeder |
| CN104094708B (en) * | 2014-06-30 | 2016-04-20 | 同济大学 | A kind of drum-type sower pneumatic seed dish device |
| CN107736112A (en) * | 2017-12-01 | 2018-02-27 | 南京农业大学 | A kind of mechanical strength combined type vegetables precise seeder |
| CN107736112B (en) * | 2017-12-01 | 2023-12-08 | 南京农业大学 | Mechanical and pneumatic combined vegetable precision seed sowing device |
| CN107912114A (en) * | 2017-12-29 | 2018-04-17 | 山东大华机械有限公司 | A kind of sowing wind turbine |
| CN108432413A (en) * | 2018-04-08 | 2018-08-24 | 珠海羽人农业航空有限公司 | A kind of live streaming unit |
| CN110073780A (en) * | 2019-05-29 | 2019-08-02 | 河南农业大学 | A kind of Cell wheel feed cleaning device |
| CN115589814A (en) * | 2022-11-14 | 2023-01-13 | 吉林大学（Cn） | Rice dry direct seeding outer fluted wheel type seed sowing device based on image recognition |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2014173261A1 (en) | 2014-10-30 |
| CN204157264U (en) | 2015-02-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103563524A (en) | Pneumatic sowing and seed discharging system | |
| CN203261689U (en) | Air-suction rotary drum type small-size-seed sowing device | |
| CN103416136B (en) | Dual-cavity type pneumatic seed sowing device | |
| CN102349376B (en) | Pneumatic hole seed sowing device | |
| CN102349382B (en) | Pneumatic dibbling seed feeding device | |
| CN106612772A (en) | Air-suction type precision seed sowing device for vegetables | |
| CN203675584U (en) | Airflow disturbance precise seed-metering device | |
| CN107318318A (en) | The adjustable Pneumatic seeding apparatus of one kind amount of broadcasting | |
| CN107667630A (en) | A kind of Pneumatic type ultra-speed precise feed mechanism for seed | |
| CN103329666A (en) | Push rod-mixing disc combination type bidirectional pneumatic precise seed sowing device for rice bud seed direct sowing | |
| CN205040213U (en) | Get adjustable air -suction type disseminator in kind of hole | |
| CN103141192B (en) | A kind of air-sweeping type plants clearly method and device | |
| CN206533724U (en) | Air-blowing suspends for the pneumatic drum type granule seed feed seed-sowing device planted | |
| CN201378935Y (en) | Pneumatic precision seed sowing device | |
| CN101292582A (en) | Air-suction air-blow drum-type rice industrial sprout cultivation planter | |
| CN114271077A (en) | Positive and negative pressure combined type soybean precision seed sowing device | |
| CN203194129U (en) | Double-chamber type pneumatic seed sowing device | |
| CN105746053A (en) | Centralized seed sowing device of seeder | |
| CN206923268U (en) | The adjustable Pneumatic seeding apparatus of one kind amount of broadcasting | |
| CN105103724A (en) | Pneumatic roller type precision seed sowing device for heteromorphic seeds | |
| CN107736112B (en) | Mechanical and pneumatic combined vegetable precision seed sowing device | |
| CN203801254U (en) | Air suction type roller seed metering device | |
| CN103733775B (en) | Pneumatic roller type tray seeder | |
| CN106879283A (en) | Pneumatic drum type feed mechanism for seed multistage cleaning device | |
| CN206602804U (en) | A kind of aspirated-air type vegetables precise seeder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140212 |