CN113261417A - Synchronous air-blowing soil-covering type seed throwing device for rice direct seeding seed metering device - Google Patents
Synchronous air-blowing soil-covering type seed throwing device for rice direct seeding seed metering device Download PDFInfo
- Publication number
- CN113261417A CN113261417A CN202110682958.3A CN202110682958A CN113261417A CN 113261417 A CN113261417 A CN 113261417A CN 202110682958 A CN202110682958 A CN 202110682958A CN 113261417 A CN113261417 A CN 113261417A
- Authority
- CN
- China
- Prior art keywords
- seed
- air
- chamber
- pipe
- inlet
- 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
- A01C7/20—Parts of seeders for conducting and depositing seed
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C7/00—Sowing
- A01C7/08—Broadcast seeders; Seeders depositing seeds in rows
- A01C7/081—Seeders depositing seeds in rows using pneumatic means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
Abstract
The invention discloses a seed feeding device of a synchronous air-blowing soil-covering type rice direct-seeding seed sowing device, wherein a stop valve is installed at an air outlet of an air compressor, an air inlet of a barometer is connected with an air outlet of the stop valve through an air conveying pipe, an air inlet of an air volume control valve is connected with the air outlet of the barometer through the air conveying pipe, an air inlet of a pressure transmitter is connected with the air outlet of the air volume control valve through the air conveying pipe, and an air inlet of a nozzle of a seed feeding pipe is connected with the air outlet of the pressure transmitter through a pneumatic connector; the seed guide joint is fixedly connected with the bottom of the seed metering device, and the seed inlet of the seed throwing pipe is connected with the bottom of the seed guide joint; the air compressor provides constant positive pressure airflow, the seed sowing device provides uniform rice seed flow, rice seeds and the positive pressure airflow are mixed in the seed throwing pipe, and the seed throwing pipe ejects mixed fluid at a high speed; the invention has the advantages that: the device has the advantages of large adjustable range of air pressure, long stabilization time and high seed feeding airflow velocity.
Description
Technical Field
The invention belongs to the technical field of agricultural machinery, and particularly relates to a seed feeding device of a synchronous air-blowing soil-covering type rice direct-seeding seed sowing device.
Background
The rice planting area of China is about 4.5 hundred million acres, the rice is the largest planting area in China, is the grain crop with the highest single yield and the highest total yield, accounts for about 40 percent of the total yield of the grain, and the rice production is an important restriction factor of the grain production safety of China. With the shift of rural labor force, the agricultural production cost is gradually increased, and in recent years, the rice direct seeding technology of a simplified planting mode is widely popularized due to the advantages of cost saving, labor saving, high operation efficiency and the like, but the rice direct seeding is to broadcast rice seeds to mud surfaces in fields, and is easily affected by rat damage, bird damage, sunshine insolation, rain wash, early rice possibly falling spring cold and the like, so that the emergence rate is difficult to ensure. Therefore, the research on the direct seeding and soil covering technology and equipment has important practical significance for ensuring the emergence rate of rice seeds.
At present, mechanized synchronous earthing in dry land is widely applied in China, the development of a paddy field direct seeding earthing device is relatively lagged, for example, the roller pressing device and the method of a paddy precise hole direct seeding machine seed of the invention patent (No. CN 102282938A), the adjustable depth and the controllable pressure of the seed pressing can be realized by adjusting a nut, the rolling of the seed pressing can be realized by the friction force between a roller and the ground, but the roller can take away the seeds by clay in the earthing process; the invention patent (No. CN 106489365A) is a paddy mechanical direct seeding suspension swing type soil covering device, soil covering of rice seeds is realized by driving a soil covering plate to swing back and forth, so that the soil covering plate scrapes soil of a ridge platform of a seed furrow to cover the upper surfaces of the rice seeds of the seed furrow, the soil covering thickness can be adjusted by adjusting the installation height of the soil covering plate, but the soil covering device needs an independent transmission mechanism and driving. Therefore, starting from the seed feeding stage of the rice direct seeding device, the synchronous air-blowing soil covering type rice direct seeding device seed feeding device is designed, rice direct seeding soil covering is realized, the rice emergence rate of direct seeding is ensured, and the difficult problems that direct seeding rice is comprehensive and difficult to grow unevenly due to the fact that rice seeds are exposed on a mud surface are effectively solved.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a seed feeding device of a synchronous air-blowing soil-covering type rice direct seeding seed metering device, so as to solve the problems in the background technology.
The technical problem solved by the invention is realized by adopting the following technical scheme:
a seed feeding device of a synchronous air-blowing soil-covering type rice direct seeding seed sowing device comprises a seed sowing device, a seed guiding joint, a seed feeding pipe, an air compressor, a barometer, an air volume control valve, a stop valve, a seed box, an air conveying pipe and a pressure transmitter, wherein the stop valve is installed at an air outlet of the air compressor, an air inlet of the barometer is connected with an air outlet of the stop valve through the air conveying pipe, an air inlet of the air volume control valve is connected with an air outlet of the barometer through the air conveying pipe, an air inlet of the pressure transmitter is connected with an air outlet of the air volume control valve through the air conveying pipe, the seed feeding pipe comprises a seed inlet, a nozzle air inlet and a seed falling port, the nozzle air inlet is connected with the air outlet of the pressure transmitter through the air coupling, the upper end of the seed inlet is connected with the bottom of the seed guiding joint, the upper end of the seed guiding joint is fixedly connected with the bottom of the seed sowing device, the seed box is arranged at the upper end of the seed sowing device, the air compressor provides constant positive pressure airflow, the seed box is used for storing rice seeds, the seed sowing device provides uniform rice seed flow, the rice seeds and positive pressure air flow are mixed in the seed throwing pipe, and the seed throwing pipe sprays the mixed fluid from the seed dropping opening at a high speed.
Furthermore, two sides of the bottom of the seed metering device shell are respectively provided with two threaded holes I, two ends of the top of the seed guiding joint are respectively provided with a boss, the two bosses are respectively provided with two threaded holes II corresponding to the positions of the threaded holes I, the bottom of the seed guiding joint is provided with a seed guiding joint seed falling port, the bosses at the two ends of the top of the seed guiding joint are embedded into the cavity at the bottom of the seed metering device shell during installation, and penetrate through the threaded holes I on the seed metering device shell and the threaded holes II on the seed guiding joint bosses through cross flat-head set screws to be fixedly connected; the seed dropping port of the seed guiding joint is circular, the inner diameter of the seed guiding joint is 20mm, and the outer circle of the seed guiding joint is provided with threads.
Furthermore, the diameter of the threaded hole I is the same as that of the threaded hole II, and the diameter of the threaded hole I is matched with that of the cross flat head set screw.
Further, the seed throwing pipe overall structure is y shape, and the mouth of a river direction is vertical direction, and nozzle air inlet direction is 30 with the mouth of a river direction contained angle, and nozzle air inlet direction is 60 with seeding advancing direction contained angle.
Further, it is hopper-shaped cavity to advance kind of a mouth upper end, and its inner wall of this hopper-shaped cavity is provided with the screw thread to with lead kind of a joint kind of a mouthful through screw-thread fit connection, the lower extreme is cylindrical cavity, and its internal diameter is 20mm, advances kind of a mouth and is located the seed throwing pipe top.
Further, a pipe thread nut is fixedly mounted at the upper end of the nozzle air inlet, a nozzle air outlet is formed in the lower end of the nozzle air inlet, the pneumatic connector air outlet is fixedly connected with the pipe thread nut through threads, the diameter of the nozzle air inlet is consistent with the inner diameter of the pneumatic conveying pipe and is 8mm, the diameter of the nozzle air outlet is 4mm-6mm, and the nozzle air inlet is located at the top of the seed throwing pipe.
Further, the air flow pressure at the air inlet of the nozzle is 250kPa-350kPa, and the height between the center of the seed dropping opening and the mud surface is 6mm-10 mm.
Furthermore, the seed throwing pipe also comprises a mixing chamber, a contraction chamber, an acceleration chamber and a diffusion throwing chamber, wherein the upper end of the mixing chamber is provided with a U-shaped opening, the U-shaped opening is connected with the air outlet of the nozzle, the lower end of the mixing chamber is provided with a cylindrical surface cavity, the side wall of the cylindrical surface cavity is connected with the lower end of the seed inlet, and the diameter of the cylindrical surface cavity of the mixing chamber is 22-26 mm; the contraction chamber is a conical surface cavity, an opening on the upper end surface of the contraction chamber is connected with an opening on the lower end surface of the mixing chamber, the inner diameter of the upper end surface of the contraction chamber is consistent with the inner diameter of the mixing chamber, the inner diameter of the lower end surface of the contraction chamber is consistent with the inner diameter of the acceleration chamber, and the total length of the contraction chamber is 10-20 mm; the accelerating chamber is a cylindrical cavity, an opening on the upper end face of the accelerating chamber is connected with an opening on the lower end face of the contracting chamber, the inner diameter of the accelerating chamber is 15mm, and the total length of the accelerating chamber is 100 mm; the diffusion seed throwing chamber is characterized in that an opening of the upper end face of the diffusion seed throwing chamber is connected with an opening of the lower end face of the accelerating chamber, the inner diameter of the upper end face of the diffusion seed throwing chamber is 15mm, an opening of the lower end face of the diffusion seed throwing chamber is a seed falling opening, the inner diameter of the seed falling opening is 20mm, and the total length of the diffusion seed throwing chamber is 15 mm.
The invention has the beneficial effects that:
1) the seed feeding device of the synchronous air-blowing soil-covering type direct rice seeding seed sowing device provided by the invention adopts the air compressor as an air source, the adjustable range of positive pressure airflow pressure is large, the stabilization time is long, the airflow velocity is high during seed feeding, and the acceleration and high-speed seed feeding of rice seeds are facilitated;
2) the seed throwing pipe provided by the invention is based on the Venturi tube principle and is respectively provided with an air inlet and a seed inlet, positive pressure air flow and rice seeds are fully mixed in a mixing chamber, mixed fluid enters an accelerating chamber through a contraction chamber to be mixed and accelerated, and is sprayed out at a high speed from the seed falling port below a diffusion throwing chamber, the rice seeds fall into field surface layer slurry under the action of air force, the surface soil covering of the rice seeds is realized, and the survival rate and the emergence rate of the rice seeds are improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the seed meter housing of the present invention;
FIG. 3 is a schematic view of the connection structure of the seed metering device, the seed guiding joint and the seed feeding pipe;
FIG. 4 is a schematic structural view of a seed introduction joint according to the present invention;
FIG. 5 is a cross-sectional view of a seed delivery tube of the present invention.
Wherein, 1 is an air compressor, 2 is a stop valve, 3 is a barometer, 4 is an air volume control valve, 5 is a pneumatic conveying pipe, 6 is a pressure transmitter, 7 is a seed box, 8 is a seed sowing device, 9 is a seed feeding pipe, 10 is a pneumatic connector, 11 is a threaded hole I, 12 is a cross flat head set screw, 13 is a seed guide connector, 14 is a pipe thread nut, 15 is a threaded hole II, 16 is a seed guide connector seed dropping hole, 17 is a seed inlet, 18 is a nozzle air inlet, 19 is a nozzle air outlet, 20 is a mixing chamber, 21 is a contraction chamber, 22 is an acceleration chamber, 23 is a diffusion dropping chamber, and 24 is a seed dropping hole.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the following detailed description of the specific embodiments of the invention is made with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
As shown in figures 1-5, the invention provides a seed feeding device of a synchronous air-blowing soil-covering type rice direct-seeding seed sowing device, which comprises a seed sowing device 8, a seed guiding joint 13, a seed feeding pipe 9, an air compressor 1, a barometer 3, an air volume control valve 4, a stop valve 2, a seed box 7, an air conveying pipe 5 and a pressure transmitter 6, wherein the stop valve 2 is arranged at an air outlet of the air compressor 1, an air inlet of the barometer 3 is connected with an air outlet of the stop valve 2 through the air conveying pipe 5, an air inlet of the air volume control valve 4 is connected with an air outlet of the barometer 3 through the air conveying pipe 5, an air inlet of the pressure transmitter 6 is connected with an air outlet of the air volume control valve 4 through the air conveying pipe 5, the seed feeding pipe 9 comprises a seed inlet 17, a nozzle air inlet 18 and a seed falling port 24, the nozzle air inlet 18 is connected with, the upper end of the seed guide joint 13 is fixedly connected with the bottom of the seed sowing device 8, the upper end of the seed sowing device 8 is provided with a seed box 7, the air compressor 1 provides constant positive pressure airflow, the seed box 7 is used for storing rice seeds, the seed sowing device 8 provides uniform rice seed flow, the rice seeds and the positive pressure airflow are mixed in the seed throwing pipe 9, and the seed throwing pipe 9 sprays mixed fluid from the seed dropping port 24 at a high speed.
Preferably, two sides of the bottom of the shell of the seed sowing device 8 are respectively provided with two threaded holes I11, two ends of the top of the seed guiding joint 13 are respectively provided with a boss, the two bosses are respectively provided with two threaded holes II 15 corresponding to the positions of the threaded holes I11, the bottom of the seed guiding joint 13 is provided with a seed guiding joint seed dropping port 16, the bosses at two ends of the top of the seed guiding joint 13 are embedded into a cavity at the bottom of the shell of the seed sowing device 8 during installation and fixedly connected with the threaded holes II 15 on the bosses of the seed guiding joint 13 through the threaded holes I11 on the shell of the seed sowing device 8 by cross flat-head set screws 12; the seed guide joint seed falling port 16 is circular, the inner diameter of the seed guide joint seed falling port is 20mm, and the outer circle of the seed guide joint seed falling port is provided with threads.
Preferably, the diameter of the threaded hole I11 is the same as that of the threaded hole II 15, and the diameter of the threaded hole I11 is matched with that of the threaded hole II 15, and the outer diameter of the threaded hole II 12 is matched with that of the cross flat head set screw.
Preferably, the entire structure of the seed throwing pipe 9 is y-shaped, the direction of the seed inlet 17 is vertical, the included angle between the direction of the nozzle air inlet 18 and the direction of the seed inlet 17 is 30 degrees, and the included angle between the direction of the nozzle air inlet 18 and the advancing direction of the seeding is 60 degrees.
Preferably, the upper end of the seed inlet 17 is a funnel-shaped cavity, the inner wall of the funnel-shaped cavity is provided with threads and is in threaded fit connection with the seed guide joint seed dropping opening 16, the lower end of the funnel-shaped cavity is a cylindrical cavity, the inner diameter of the funnel-shaped cavity is 20mm, and the seed inlet 17 is positioned at the top of the seed feeding pipe 9.
Preferably, a pipe thread nut 14 is fixedly installed at the upper end of the nozzle air inlet 18, a nozzle air outlet 19 is arranged at the lower end of the nozzle air inlet, an air outlet of the pneumatic connector 10 is fixedly connected with the pipe thread nut 14 through threads, the diameter of the nozzle air inlet 18 is consistent with the inner diameter of the pneumatic conveying pipe 5 and is 8mm, the diameter of the nozzle air outlet 19 is 4mm-6mm, and the nozzle air inlet 18 is located at the top of the seed throwing pipe 9.
Preferably, the air flow pressure at the air inlet 18 of the nozzle is 250kPa-350kPa, and the height between the center of the seed dropping opening 24 and the mud surface is 6mm-10 mm.
Preferably, the seed feeding pipe 9 further comprises a mixing chamber 20, a contraction chamber 21, an acceleration chamber 22 and a diffusion seed feeding chamber 23, wherein the upper end of the mixing chamber 20 is provided with a U-shaped opening, the U-shaped opening is connected with the nozzle air outlet 19, the lower end of the mixing chamber is provided with a cylindrical surface cavity, the side wall of the cylindrical surface cavity is connected with the lower end of the seed inlet 17, and the diameter of the cylindrical surface cavity of the mixing chamber 20 is 22mm-26 mm; the contraction chamber 21 is a conical cavity, an opening on the upper end face of the contraction chamber 21 is connected with an opening on the lower end face of the mixing chamber 20, the inner diameter of the upper end face of the contraction chamber 21 is consistent with the inner diameter of the mixing chamber 20, the inner diameter of the lower end face of the contraction chamber is consistent with the inner diameter of the acceleration chamber 22, and the total length of the contraction chamber 21 is 10mm-20 mm; the accelerating chamber 22 is a cylindrical cavity, an opening on the upper end face of the accelerating chamber is connected with an opening on the lower end face of the contracting chamber 21, the inner diameter of the accelerating chamber 22 is 15mm, and the total length is 100 mm; the upper end face opening of the diffusion throwing chamber 23 is connected with the lower end face opening of the accelerating chamber 22, the inner diameter of the upper end face of the diffusion throwing chamber 23 is 15mm, the lower end face opening of the diffusion throwing chamber 23 is a seed dropping opening 24, the inner diameter of the seed dropping opening 24 is 20mm, and the total length of the diffusion throwing chamber 23 is 15 mm.
In the present invention, the seed box 7 and the seed sowing device 8 are one structure in the prior art, and in practical application, the technical effects of the present invention can be achieved by any seed box and seed sowing device in the prior art, and the present invention is only one structure described in the specific embodiment and the attached drawings, and the present invention is not limited to this structure.
The working principle of the invention is as follows: the air compressor 1 provides constant positive pressure airflow when in operation, the positive pressure airflow is conveyed to a nozzle air inlet 18 of a seed throwing pipe 9 through a pneumatic conveying pipe 5 and enters a mixing chamber 20 through a nozzle air outlet 19, rice seeds are uniformly and stably conveyed and fall into the seed throwing pipe 9 after a seed sowing device 8 operates, the rice seeds fall into the mixing chamber 20 from a seed inlet 17 of the seed throwing pipe 9 and are fully mixed with the positive pressure airflow in the mixing chamber 20 of the seed throwing pipe, then the rice seeds enter an accelerating chamber 22 after being contracted through a contracting chamber 21 and then fall in an accelerating manner, finally the mixed fluid is a mixture of the rice seeds and the positive pressure airflow and is sprayed out from a seed falling port 24 at a high speed, and the rice seeds are sprayed into surface layer slurry in the field to realize synchronous sowing and earthing.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. The utility model provides a synchronous air-blowing earthing formula rice direct seeding seed metering ware throws kind of device which characterized in that: comprises a seed sowing device (8), a seed guiding joint (13), a seed feeding pipe (9), an air compressor (1), a barometer (3), an air volume control valve (4), a stop valve (2), a seed box (7), an air conveying pipe (5) and a pressure transmitter (6), wherein the stop valve (2) is arranged at an air outlet of the air compressor (1), an air inlet of the barometer (3) is connected with an air outlet of the stop valve (2) through the air conveying pipe (5), an air inlet of the air volume control valve (4) is connected with an air outlet of the barometer (3) through the air conveying pipe (5), an air inlet of the pressure transmitter (6) is connected with an air outlet of the air volume control valve (4) through the air conveying pipe (5), wherein the seed feeding pipe (9) comprises a seed inlet (17), a nozzle air inlet (18) and a seed falling port (24), and the nozzle air inlet (18) is connected with an air outlet of the pressure transmitter (6) through the pneumatic joint (10), the upper end of the seed inlet (17) is connected with the bottom of the seed guide joint (13), the upper end of the seed guide joint (13) is fixedly connected with the bottom of the seed sowing device (8), the upper end of the seed sowing device (8) is provided with a seed box (7), an air compressor (1) provides constant positive pressure airflow, the seed box (7) is used for storing rice seeds, the seed sowing device (8) provides uniform rice seed flow, the rice seeds and the positive pressure airflow are mixed in a seed throwing pipe (9), and the seed throwing pipe (9) sprays mixed fluid at a high speed from a seed dropping port (24).
2. The synchronous air-blowing soil-covering type rice direct seeding seed sowing device according to claim 1, which is characterized in that: two threaded holes I (11) are respectively formed in two sides of the bottom of the shell of the seed sowing device (8), bosses are respectively arranged at two ends of the top of the seed guiding joint (13), two threaded holes II (15) corresponding to the positions of the threaded holes I (11) are respectively arranged on the two bosses, a seed guiding joint seed falling port (16) is arranged at the bottom of the seed guiding joint (13), the bosses at two ends of the top of the seed guiding joint (13) are embedded into a cavity at the bottom of the shell of the seed sowing device (8) during installation, and a cross flat head set screw (12) penetrates through the threaded holes I (11) on the shell of the seed sowing device (8) and the threaded holes II (15) on the bosses of the seed guiding joint (13) to be fixedly connected; the seed guide joint seed falling port (16) is circular, the inner diameter of the seed guide joint seed falling port is 20mm, and the outer circle of the seed guide joint seed falling port is provided with threads.
3. The synchronous air-blowing soil-covering type rice direct seeding seed sowing device according to claim 1, which is characterized in that: the diameter of the threaded hole I (11) is the same as that of the threaded hole II (15), and the diameter of the threaded hole I (11) is matched with that of the cross flat head set screw (12).
4. The synchronous air-blowing soil-covering type rice direct seeding seed sowing device according to claim 1, which is characterized in that: the integral structure of the seed feeding pipe (9) is Y-shaped, the direction of the seed inlet (17) is vertical, the included angle between the direction of the nozzle air inlet (18) and the direction of the seed inlet (17) is 30 degrees, and the included angle between the direction of the nozzle air inlet (18) and the direction of the seeding advancing direction is 60 degrees.
5. The synchronous air-blowing soil-covering type rice direct seeding seed sowing device according to claim 1, which is characterized in that: the upper end of the seed inlet (17) is a funnel-shaped cavity, the inner wall of the funnel-shaped cavity is provided with threads and is connected with the seed outlet (16) of the seed guide joint in a threaded fit mode, the lower end of the funnel-shaped cavity is a cylindrical cavity, the inner diameter of the cylindrical cavity is 20mm, and the seed inlet (17) is located at the top of the seed throwing pipe (9).
6. The synchronous air-blowing soil-covering type rice direct seeding seed sowing device according to claim 1, which is characterized in that: the pneumatic pipe feeding device is characterized in that a pipe thread nut (14) is fixedly mounted at the upper end of the nozzle air inlet (18), a nozzle air outlet (19) is formed in the lower end of the nozzle air inlet (18), an air outlet of the pneumatic connector (10) is fixedly connected with the pipe thread nut (14) through threads, the diameter of the nozzle air inlet (18) is consistent with the inner diameter of the pneumatic conveying pipe (5) and is 8mm, the diameter of the nozzle air outlet (19) is 4mm-6mm, and the nozzle air inlet (18) is located at the top of the seed throwing pipe (9).
7. The synchronous air-blowing soil-covering type rice direct seeding seed sowing device according to claim 1, which is characterized in that: the air flow pressure at the air inlet (18) of the nozzle is 250kPa-350kPa, and the height between the center of the seed dropping opening (24) and the mud surface is 6mm-10 mm.
8. The seed feeding device of the synchronous air-blowing soil-covering type rice direct seeding and seeding device as claimed in any one of claims 1 to 7, characterized in that: the seed throwing pipe (9) further comprises a mixing chamber (20), a contraction chamber (21), an acceleration chamber (22) and a diffusion throwing chamber (23), wherein the upper end of the mixing chamber (20) is provided with a U-shaped opening, the U-shaped opening is connected with a nozzle air outlet (19), the lower end of the mixing chamber is provided with a cylindrical surface cavity, the side wall of the cylindrical surface cavity is connected with the lower end of the seed inlet (17), and the diameter of the cylindrical surface cavity of the mixing chamber (20) is 22-26 mm; the contraction chamber (21) is a conical cavity, an opening on the upper end face of the contraction chamber is connected with an opening on the lower end face of the mixing chamber (20), the inner diameter of the upper end face of the contraction chamber (21) is consistent with the inner diameter of the mixing chamber (20), the inner diameter of the lower end face of the contraction chamber is consistent with the inner diameter of the acceleration chamber (22), and the total length of the contraction chamber (21) is 10-20 mm; the accelerating chamber (22) is a cylindrical cavity, an opening on the upper end face of the accelerating chamber is connected with an opening on the lower end face of the contracting chamber (21), the inner diameter of the accelerating chamber (22) is 15mm, and the total length of the accelerating chamber is 100 mm; the diffusion throw room (23) upper portion terminal surface opening and accelerate room (22) lower part terminal surface opening and be connected, the diffusion throw room (23) upper portion terminal surface internal diameter is 15mm, the diffusion throw room (23) lower part terminal surface opening be kind of a mouthful (24), kind of a mouthful (24) internal diameter is 20mm, the diffusion throw room (23) total length is 15 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110682958.3A CN113261417A (en) | 2021-06-21 | 2021-06-21 | Synchronous air-blowing soil-covering type seed throwing device for rice direct seeding seed metering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110682958.3A CN113261417A (en) | 2021-06-21 | 2021-06-21 | Synchronous air-blowing soil-covering type seed throwing device for rice direct seeding seed metering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113261417A true CN113261417A (en) | 2021-08-17 |
Family
ID=77235398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110682958.3A Pending CN113261417A (en) | 2021-06-21 | 2021-06-21 | Synchronous air-blowing soil-covering type seed throwing device for rice direct seeding seed metering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113261417A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114532004A (en) * | 2022-03-11 | 2022-05-27 | 黄淮学院 | A seeder for thesium chinese is planted |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5787825A (en) * | 1997-03-10 | 1998-08-04 | Director General Of The Touhoku National Agiculture Experiment Station: Yoshihiro Yamashita | Seeding machine with sensor controlled planting at predetermined depth |
| US20040163578A1 (en) * | 2003-02-21 | 2004-08-26 | Mcdonald Roger C. | Seed eductor assembly |
| WO2005011358A1 (en) * | 2003-08-05 | 2005-02-10 | John Holly | Seed distribution method and apparatus |
| US20070048097A1 (en) * | 2005-08-29 | 2007-03-01 | Heckendorn Frank M | Pneumatic conveyance apparatus and process |
| WO2014069854A1 (en) * | 2012-10-29 | 2014-05-08 | Choi Hyoung-Seop | Spot seeder |
| CN106612775A (en) * | 2017-01-11 | 2017-05-10 | 安徽农业大学 | Combined seed and fertilizer dual-purpose pneumatic transmission device |
| US20200068791A1 (en) * | 2018-09-05 | 2020-03-05 | Deere & Company | Commodity delivery system for work vehicle with venturi suction generator |
| CN111149483A (en) * | 2020-03-25 | 2020-05-15 | 江西农业大学 | Synchronous soil-covering rice direct seeding machine |
| CN111165129A (en) * | 2020-03-12 | 2020-05-19 | 中国农业大学 | Air-conveying type high-speed corn precision seed supply device |
| CN111357443A (en) * | 2020-04-16 | 2020-07-03 | 江西农业大学 | Inside gas-blast earthing formula rice direct seeding seed metering ware of aerifing of type hole wheel |
-
2021
- 2021-06-21 CN CN202110682958.3A patent/CN113261417A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5787825A (en) * | 1997-03-10 | 1998-08-04 | Director General Of The Touhoku National Agiculture Experiment Station: Yoshihiro Yamashita | Seeding machine with sensor controlled planting at predetermined depth |
| US20040163578A1 (en) * | 2003-02-21 | 2004-08-26 | Mcdonald Roger C. | Seed eductor assembly |
| WO2005011358A1 (en) * | 2003-08-05 | 2005-02-10 | John Holly | Seed distribution method and apparatus |
| US20070048097A1 (en) * | 2005-08-29 | 2007-03-01 | Heckendorn Frank M | Pneumatic conveyance apparatus and process |
| WO2014069854A1 (en) * | 2012-10-29 | 2014-05-08 | Choi Hyoung-Seop | Spot seeder |
| CN106612775A (en) * | 2017-01-11 | 2017-05-10 | 安徽农业大学 | Combined seed and fertilizer dual-purpose pneumatic transmission device |
| US20200068791A1 (en) * | 2018-09-05 | 2020-03-05 | Deere & Company | Commodity delivery system for work vehicle with venturi suction generator |
| CN111165129A (en) * | 2020-03-12 | 2020-05-19 | 中国农业大学 | Air-conveying type high-speed corn precision seed supply device |
| CN111149483A (en) * | 2020-03-25 | 2020-05-15 | 江西农业大学 | Synchronous soil-covering rice direct seeding machine |
| CN111357443A (en) * | 2020-04-16 | 2020-07-03 | 江西农业大学 | Inside gas-blast earthing formula rice direct seeding seed metering ware of aerifing of type hole wheel |
Non-Patent Citations (2)
| Title |
|---|
| 李成华: "《作物育苗制钵机与移栽机试验研究》", 31 July 2012, 中国农业大学出版社 * |
| 陈雄飞等: "2BDF-3.0型同步深施肥水稻穴直播机的设计与试验", 《沈阳农业大学学报》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114532004A (en) * | 2022-03-11 | 2022-05-27 | 黄淮学院 | A seeder for thesium chinese is planted |
| CN114532004B (en) * | 2022-03-11 | 2023-06-16 | 黄淮学院 | Sowing device for bastard grass planting |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105103736B (en) | Pusher-type seed-metering device | |
| CN203775662U (en) | Internally-seed-filling pneumatic centralized type precise seed sowing device | |
| CN205961774U (en) | Scatter quick -witted strength and concentrate conveyor | |
| CN105149131B (en) | A kind of mixing feeder of strength fertilizer apparatus | |
| CN103749049A (en) | Internal seed filled pneumatic line type accurate seed sowing device | |
| CN108633428A (en) | A kind of ultrasonic wave auxiliary mixed dissolution fertilizer box and water-fertilizer integral irrigation system | |
| CN113261417A (en) | Synchronous air-blowing soil-covering type seed throwing device for rice direct seeding seed metering device | |
| CN110876286B (en) | Vertical type deep rotary tillage combined operation device for fertilizing and seeding | |
| CN115250661A (en) | Soil preparation, fertilization and sowing integrated rice dry farming machine and use method thereof | |
| CN109287211B (en) | Pneumatic accelerating wheat jetting and sowing device | |
| CN110476784A (en) | A kind of anticlogging drip irrigation pipe | |
| CN110402645A (en) | A kind of gas helps formula layered deep placement fertilizer machine and application method | |
| CN211378758U (en) | Seeder for vegetable planting | |
| CN210017294U (en) | Agricultural water conservancy irrigation device | |
| CN209609454U (en) | A kind of multi-angle flusher of novel agricultural irrigation | |
| CN207766857U (en) | American Ginseng strength pin type essence quantity set arranges device | |
| CN209017444U (en) | A kind of agricultural fertilizer apparatus | |
| CN208402452U (en) | A kind of ultrasonic wave auxiliary mixed dissolution fertilizer box and water-fertilizer integral irrigation system | |
| CN109496505A (en) | Precise seeder is used in the wide seedling band sowing of fine grain seed | |
| CN106034496B (en) | A kind of integrated arranging rice precise direct-seeding device | |
| CN106612775B (en) | Combined type seed and fertilizer air conveying device | |
| CN211047819U (en) | Air-assisted layered deep fertilizer applicator | |
| CN108337959A (en) | American Ginseng strength pin type essence quantity set arranges device | |
| CN211678668U (en) | Seed coating and grading machine | |
| CN215819354U (en) | Seeding and irrigation integrated pepper planting seeding device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |