CN110192460B - Pneumatic shaft needle hole type precise seed sowing device - Google Patents
Pneumatic shaft needle hole type precise seed sowing device Download PDFInfo
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- CN110192460B CN110192460B CN201910450701.8A CN201910450701A CN110192460B CN 110192460 B CN110192460 B CN 110192460B CN 201910450701 A CN201910450701 A CN 201910450701A CN 110192460 B CN110192460 B CN 110192460B
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- shaft needle
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- seeds
- needle sleeve
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- 238000009331 sowing Methods 0.000 title claims abstract description 32
- 230000007246 mechanism Effects 0.000 claims abstract description 19
- 238000005096 rolling process Methods 0.000 claims abstract description 4
- 241000721671 Ludwigia Species 0.000 claims description 15
- 230000006378 damage Effects 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 2
- 240000001931 Ludwigia octovalvis Species 0.000 abstract 1
- 238000001179 sorption measurement Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 230000009471 action Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 238000010899 nucleation Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001360 synchronised effect Effects 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 invention discloses a pneumatic shaft needle hole type precision seed sowing device, which relates to the technical field of agricultural machinery and equipment, and comprises a turntable, a connecting rod b, a swinging rod, a shaft needle seat, a suction nozzle for sucking seeds, and an air hole, wherein the bottom end of a shaft needle sleeve is provided with a suction nozzle for sucking seeds; the rollers are arranged in the arc-shaped slideway of the curved guide rail in a rolling way; the air cavity is fixedly arranged on the roller and connected with the air suction mechanism, and is provided with a through hole corresponding to the shaft needle sleeve; the shaft needle sleeve sucks seeds from the seed box; the seed metering dish is fixed to be set up in the frame for accept and sow the seed that drops from the axle needle cover. The invention has the advantages that the seed suction is carried out by using the pin hole type air suction mode, one pin sleeve corresponds to one seed, the adsorption of a plurality of seeds by the same air suction port is avoided, and the seed sowing precision is ensured. The seeds are discharged by utilizing the pressure difference in the shaft needle sleeve or the shaft needle, so that the damage to the seeds is avoided, and the breakage rate of the seeds is reduced.
Description
Technical Field
The invention relates to the technical field of agricultural machinery and equipment, in particular to a pneumatic shaft needle hole type precision seed sowing device.
Background
For the crops planted in the hole sowing, the application of the precise seed sowing device can reduce the thinning workload, save the seed cost and improve the comprehensive economic benefit. The current method for realizing precise seed arrangement mainly comprises two types of mechanical type and pneumatic type, wherein the mechanical type comprises a hole wheel type, a horizontal disc type, a finger clip type and the like, the structure is relatively simple, but seed is easy to damage and miss. The pneumatic seed sowing device comprises two types of air suction type and air blowing type. The pneumatic seed metering device has accurate seed metering and no damage to seeds, but has a complex structure.
The air suction type seed sowing device comprises an air suction disc type seed sowing device, an air suction roller type seed sowing device, an air suction needle type seed sowing device and the like, wherein the air suction needle type seed sowing device is good in adaptability and reliable in seed sowing, but has the defects that a suction nozzle is easy to block, seeds are easy to fall off due to vibration in the seed conveying swing process and the like.
Disclosure of Invention
The invention aims to solve the problems of seed blockage, seed injury and seed dropping in the traditional air suction seed metering, improve seed metering efficiency and save time, and designs a pneumatic shaft needle hole type precise seed metering device.
A pneumatic shaft needle hole type precise seed sowing device comprises a frame and further comprises: the rotary table is rotatably arranged on the rack; the connecting rod a rotates and is eccentrically arranged on the turntable; the connecting rod b is rotatably connected with one end of the connecting rod a; the swing rod is rotatably arranged on the rack, and one end of the swing rod is rotatably connected with the other end of the connecting rod a; the shaft needle seat is fixedly arranged on the swing rod; the shaft needles are arranged on the shaft needle seat; the curved surface guide rail is fixedly arranged on the rack; the roller is rotationally connected with the connecting rod b and is arranged in the arc-shaped slideway of the curved guide rail in a rolling way; the air cavity is fixedly arranged on the roller and connected with the air suction mechanism, and is provided with a through hole corresponding to the shaft needle sleeve; the plurality of shaft needle sleeves are arranged on the air cavity, suction nozzles for sucking seeds are arranged at the bottom ends of the shaft needle sleeves, air holes are formed in the side walls of the shaft needle sleeves, and the shaft needle is arranged in the shaft needle sleeves in a sliding mode; the seed box is fixedly arranged on the rack, and the shaft needle sleeve sucks seeds from the seed box; and the seed metering disc is fixedly arranged on the frame and used for receiving and sowing seeds falling from the shaft needle sleeve.
Further, a gear is arranged on the inner side of the rotary table and is connected with an external power output mechanism to provide power for the whole clock mechanism.
Further, the shaft needle sleeve comprises an upper shaft needle sleeve and a lower shaft needle sleeve which are corresponding to each other, the lower shaft needle sleeve is fixedly arranged on the air cavity, the upper shaft needle sleeve is fixedly connected with the lower shaft needle sleeve through a shaft needle, an air hole is formed in the side wall of the lower shaft needle sleeve, and when the bottom end of the shaft needle is located at the suction nozzle of the lower shaft needle sleeve, the shaft needle blocks the air outlet of the suction nozzle.
Further, the shaft needle sleeve is fixedly arranged on the air cavity through threads.
Further, an arc-shaped track is arranged in the curved surface guide rail, when the roller rolls to the lowest end of the curved surface guide rail, the axle needle sleeve is opposite to the seed box, and the axle needle blocks the air outlet of the suction nozzle; when the roller rolls to the highest end of the curved guide rail, the shaft needle sleeve is opposite to the seed metering disc, and the shaft needle does not block the air outlet of the suction nozzle.
Further, the rear end face of the air cavity is provided with two air holes, and the two air holes are connected with the air suction mechanism through a rubber hose.
Further, the air suction mechanism comprises a centrifugal fan, a storage battery and an air suction hose, wherein the centrifugal fan is fixed at the front end of the frame and is connected with the storage battery through an electric wire.
Further, a plurality of seed sowing boxes which are in one-to-one correspondence with the axle needle sleeves are arranged on the seed sowing plate, and a hose is arranged at the bottom of each seed sowing box.
The beneficial effects of the invention are as follows: the seeds are sucked by using the pin hole type air suction mode, one pin sleeve corresponds to one seed, the phenomenon that the same air suction port adsorbs a plurality of seeds is avoided, and the seed sowing precision is ensured. The axle needle is utilized to discharge seeds, the action that a hairbrush or a baffle is needed for brushing the seeds is canceled for air transmission, suction and seed discharge, the damage to the seeds is avoided, and the breakage rate of the seeds is reduced. The multiple shaft needle sleeves are arranged, so that multi-row synchronous sowing can be realized synchronously, the problem that the traditional seeder cannot realize high-density precision sowing is solved, and the uniformity of the row spacing of seeds falling into the seed grooves can be ensured.
Drawings
FIG. 1 is a schematic diagram of a precision seed metering device of the present application;
FIG. 2 is a right side view of FIG. 1;
FIG. 3 is a front view of FIG. 1;
FIG. 4 is a schematic view of the structure of the seed metering box of the present application;
FIG. 5 is a schematic structural view of the air chamber of the present application;
FIG. 6 is a schematic view of the seed sucking state of the present application;
fig. 7 is a schematic view of the seeding state of the present application.
In the above figures, 1, a frame; 2. a turntable; 3. a connecting rod a; 4. a connecting rod b; 5. swing rod; 6. a shaft needle seat; 7. a shaft needle sleeve; 8. a curved guide rail; 9. a roller; 10. an air cavity; 11. a seed box; 12. a seed metering disc; 13. an air suction mechanism; 14. a pintle.
Detailed Description
In order to further describe the technical means and effects adopted by the invention to achieve the preset aim, the following detailed description is given below of the specific implementation, structure, characteristics and effects according to the invention with reference to the accompanying drawings and preferred embodiments:
the pneumatic shaft needle hole type precise seed sowing device comprises a frame 1, a turntable 2, a connecting rod a3, a connecting rod b4, a swinging rod 5, a shaft needle seat 6, a plurality of shaft needle sleeves 7, a curved surface guide rail 8, rollers 9, an air cavity 10, a seed box 11, a seed sowing disc 12 and shaft needles 14, as shown in fig. 1 to 7.
The frame 1 is mainly used for installation, and can be installed on a walking machine through hanging lugs.
Two opposite sides of the frame 1 are respectively provided with a turntable 2, and the turntable 2 is rotatably arranged on the frame 1. The inner side of the rotary table 2 is provided with a gear which is connected with an external power output mechanism to provide power for the whole seed sowing mechanism, for example, the power source can be provided by the land wheel of the existing seeder and other walking machines or by separately installing a power device.
The connecting rod a3 is rotatably arranged on the turntable 2 through a pin, and the rotation center of the connecting rod a3 is not on the rotation axis of the turntable 2, namely, the connecting rod a3 and the turntable 2 are eccentrically arranged. One end of the link b4 is rotatably connected to one end of the link a 3. The swing rod 5 is rotatably arranged on the frame 1, and one end of the swing rod 5 is rotatably connected with the other end of the connecting rod a 3. When the turntable 3 rotates, the link b4 and the swing link 5 generate a rotational motion.
The axle needle seat 6 is fixedly arranged on the two swing rods 5. A plurality of pintle 14 are fixedly arranged on the pintle seat 6. The pin sleeves 7 are fixedly arranged on the air cavity 10 at equal intervals, and as shown in the drawing, 28 pin sleeves 7 are fixedly arranged on the air cavity 10. The shaft needle sleeve 7 comprises an upper shaft needle sleeve and a lower shaft needle sleeve which correspond to each other, the lower shaft needle sleeve is fixedly arranged on the air cavity 10 through threads, the upper shaft needle sleeve is fixedly connected with the lower shaft needle sleeve through a shaft needle 14, air holes are formed in the side wall of the lower shaft needle sleeve, vertical through holes are respectively formed in the upper shaft needle sleeve and the lower shaft needle sleeve, the two through holes are combined to form a vertical passage, and the side wall of the lower shaft needle sleeve is provided with the air holes and is connected with the hollow part of the air cavity 10. When the bottom end of the pintle 14 is positioned at the suction nozzle of the lower pintle sleeve, the pintle 14 will block the air outlet of the suction nozzle. The curved surface guide rail 8 is fixedly arranged on the frame 1, an arc-shaped track is arranged in the curved surface guide rail 8, when the roller 9 rolls to the lowest end of the curved surface guide rail 8, the spindle needle sleeve 7 is opposite to the seed box 11, the spindle needle 14 blocks the air outlet of the suction nozzle, and seeds can be ejected from the suction nozzle of the spindle needle sleeve 7; when the roller 9 rolls to the highest end of the curved guide rail 8, the shaft needle sleeve 7 is opposite to the seed metering disc 12, the shaft needle 14 does not block the air outlet of the suction nozzle, and seeds can be ejected from the suction nozzle of the shaft needle sleeve 7. Here, the shaft needle sheath 7 is stationary relative to the air chamber 10, and the shaft needle sheath and the air chamber move together.
The air cavity 10 is fixedly arranged on the roller 9, the roller 9 is rotationally connected with the connecting rod b4, and the roller 9 is arranged in an arc-shaped slideway of the curved guide rail 8 in a rolling way. When the roller 9 rolls on the curved guide rail 8, the pintle sleeve 7 on the pintle seat 6 generates a rotational movement. The curved guide rail 8 provides a movement locus of the rollers 9.
The air cavity 10 is connected with the air suction mechanism 13, the air cavity 10 is provided with a through hole corresponding to the shaft needle sleeve 7, and the shaft needle 14 can reciprocate in the air cavity 10. The rear end face of the air cavity 10 is provided with two air holes which are connected with an air suction mechanism 13 through a rubber hose. The air suction mechanism 13 comprises a centrifugal fan, a storage battery and an air suction hose, wherein the centrifugal fan is fixed at the front end of the frame 1 and is connected with the storage battery through an electric wire. The centrifugal fan 16 works independently of the battery, and the centrifugal fan 16 is always kept on during the seeding process.
The seed box 11 is fixedly arranged on the frame 1, and the shaft needle sleeve 7 sucks seeds from the seed box 11. The seed metering disc 12 is fixedly arranged on the frame 1 and is used for receiving and sowing seeds falling from the axle needle sleeve 7.
An arc track is arranged in the curved surface guide rail 8, when the roller 9 rolls to the lowest end of the curved surface guide rail 8, the shaft needle sleeve 7 is opposite to the seed box 11, and an air hole of the shaft needle sleeve 7 is positioned in the air cavity 10; when the roller 9 rolls to the highest end of the curved guide rail 8, the shaft needle sleeve 7 is opposite to the seed metering disc 12, and the air hole of the shaft needle sleeve 7 is positioned outside the air cavity 10. The side of the highest end of the curved guide rail 8 is provided with an opening slideway, which is not only beneficial to installation, but also beneficial to preventing the roller 9 from sliding out of the curved guide rail 8.
The seed metering dish 12 is equipped with the seed metering box of several and axle needle cover 7 one-to-one, and seed metering dish 12 is similar to the three-dimensional structure of falling trapezoid, and the bottom of 28 seed metering dishes 12 all is equipped with the hose for collect the crops seed that restrains seed metering box to fall, guarantee to fall to the seed row spacing of seed ditch even.
When in use, the seed sowing device is fixed on the frame of the existing seeder through the connecting lugs on the frame 1; a certain amount of seeds are filled into a seed box 11 positioned at the rear of the seed metering machine frame, power is provided by an external small-sized petrol engine, and the power is transmitted to the whole seed metering mechanism by a turntable 2. The rotating disk 3 rotates to drive the connecting rod b4 and the swing rod 5 to move respectively. The seeding process can be divided into four processes: sucking seeds, transporting seeds, discharging seeds and resetting.
When the seeds are sucked, the air cavity 10 moves to the lowest point of the curved surface guide rail 8, at the moment, the lower end of the shaft needle sleeve 7 is positioned in the seed box 11, and the seeds are sucked to the suction nozzle of the shaft needle sleeve 7 under the action of negative pressure, so that the seed sucking process is completed. When the rotary table 3 rotates for a certain angle during seed conveying, the pintle seat 6 moves to the highest point along with the swing rod 5, meanwhile, the air cavity 10 also stably moves to the highest point of the curved surface guide rail 8, and at the moment, the air cavity 10 is in a vertical position relative to the pintle seat 6, so that seed conveying is completed. When the seeds are planted, the turntable 3 further rotates, the connecting rod a3 moves to the highest position, one end of the connecting rod b4, which is close to the curved surface guide rail 8, moves upwards, one end, which is far away from the curved surface guide rail 8, moves downwards, the swing rod 5 drives the pintle 14 to move downwards, and the seeds are ejected to finish the seed planting while blocking the air holes. And then the mechanism is reset, the turntable 3 continues to rotate to complete one period, the swing rod 5 and the air cavity 10 are restored to the original positions, and one seed sowing period is completed.
In the three processes of seed suction, seed conveying and resetting, the shaft needle 14 is in sliding fit with the air cavity 10 all the time, and when the air hole of the shaft needle sleeve 7 is in the air cavity 10, the shaft needle sleeve 7 can be in a negative pressure state under the action of the centrifugal fan. When the seeds are planted, the air holes on the inner wall of the upper shaft needle sleeve are blocked at the lowest end of the shaft needle 14, and simultaneously seeds are ejected out, and the seeds fall into the seed grooves formed by the furrow opener from the seed sowing plate along the hose after falling into the seed sowing box.
The invention has been described above with reference to preferred embodiments, but the scope of the invention is not limited thereto, various modifications may be made thereto and equivalents may be substituted for elements thereof without structural conflict, technical features mentioned in the various embodiments may be combined in any way, and any reference signs in the claims shall not be construed as limiting the claims concerned, the embodiments shall be construed as exemplary and non-limiting in all respects. Therefore, any and all technical solutions falling within the scope of the claims are within the scope of the present invention.
Claims (6)
1. The utility model provides a accurate seed metering ware of strength shaft needle hole formula, includes frame (1), its characterized in that still includes: the rotary table (2) is rotatably arranged on the frame (1);
the connecting rod a (3), the connecting rod a (3) rotates and is eccentrically arranged on the turntable (2); a connecting rod b (4), wherein one end of the connecting rod b (4) is rotationally connected with one end of the connecting rod a (3);
the swing rod (5) is rotatably arranged on the frame (1), and one end of the swing rod (5) is rotatably connected with the other end of the connecting rod a (3);
the shaft needle seat (6), the shaft needle seat (6) is fixedly arranged on the swing rod (5); a plurality of axle pins (14), wherein the axle pins (14) are arranged on the axle pin seat (6);
the curved surface guide rail (8), the curved surface guide rail (8) is fixedly arranged on the frame (1);
the roller (9) is rotationally connected with the connecting rod b (4), and the roller (9) is arranged in an arc-shaped slideway of the curved guide rail (8) in a rolling way;
the air cavity (10) is fixedly arranged on the roller (9), the air cavity (10) is connected with the air suction mechanism (13), and the air cavity is provided with a through hole corresponding to the shaft needle sleeve (7);
the plurality of shaft needle sleeves (7), the shaft needle sleeves (7) are arranged on the air cavity (10), suction nozzles for sucking seeds are arranged at the bottom ends of the shaft needle sleeves (7), air holes are formed in the side walls of the shaft needle sleeves (7), and the shaft needle (14) is arranged in the shaft needle sleeves (7) in a sliding mode;
the seed box (11), the seed box (11) is fixedly arranged on the frame (1), and the shaft needle sleeve (7) sucks seeds from the seed box (11);
the seed metering disc (12) is fixedly arranged on the frame (1) and is used for receiving and sowing seeds falling from the shaft needle sleeve (7);
the inner side of the rotary table (2) is provided with a gear which is connected with an external power output mechanism to provide power for the whole clock mechanism;
the shaft needle sleeve (7) comprises an upper shaft needle sleeve and a lower shaft needle sleeve which correspond to each other, the lower shaft needle sleeve is fixedly arranged on the air cavity (10), the upper shaft needle sleeve is fixedly connected with the lower shaft needle sleeve through a shaft needle (14), an air hole is formed in the side wall of the lower shaft needle sleeve, and when the bottom end of the shaft needle (14) is located at a suction nozzle of the lower shaft needle sleeve, the shaft needle (14) plugs an air outlet of the suction nozzle.
2. The pneumatic shaft needle hole type precision seed metering device according to claim 1, wherein the shaft needle sleeve (7) is fixedly arranged on the air cavity (10) through threads.
3. The pneumatic shaft needle hole type precise seed sowing device according to claim 1, wherein an arc-shaped track is arranged in the curved guide rail (8), when the roller (9) rolls to the lowest end of the curved guide rail (8), the shaft needle sleeve (7) is opposite to the seed box (11), and the shaft needle (14) blocks the air outlet of the suction nozzle; when the roller (9) rolls to the highest end of the curved guide rail (8), the shaft needle sleeve (7) is opposite to the seed metering disc (12), and the shaft needle (14) does not block the air outlet of the suction nozzle.
4. The pneumatic shaft needle hole type precise seed metering device according to claim 1, wherein the rear end surface of the air cavity (10) is provided with two air holes, and the two air holes are connected with the air suction mechanism (13) through a rubber hose.
5. The pneumatic shaft needle hole type precise seed metering device according to claim 1, wherein the air suction mechanism (13) comprises a centrifugal fan, a storage battery and an air suction hose, and the centrifugal fan is fixed at the front end of the frame (1) and is connected with the storage battery through an electric wire.
6. The pneumatic shaft needle hole type precise seed metering device according to claim 1, wherein a plurality of seed metering boxes which are in one-to-one correspondence with the shaft needle sleeves (7) are arranged on the seed metering disc (12), and a hose is arranged at the bottom of each seed metering box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910450701.8A CN110192460B (en) | 2019-05-28 | 2019-05-28 | Pneumatic shaft needle hole type precise seed sowing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910450701.8A CN110192460B (en) | 2019-05-28 | 2019-05-28 | Pneumatic shaft needle hole type precise seed sowing device |
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| Publication Number | Publication Date |
|---|---|
| CN110192460A CN110192460A (en) | 2019-09-03 |
| CN110192460B true CN110192460B (en) | 2024-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910450701.8A Active CN110192460B (en) | 2019-05-28 | 2019-05-28 | Pneumatic shaft needle hole type precise seed sowing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113317008B (en) * | 2021-06-23 | 2022-06-21 | 浙江理工大学 | Pneumatic oscillating quantitative seed sowing device and quantitative seed sowing method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201081892Y (en) * | 2007-03-08 | 2008-07-09 | 王继东 | Gas intaking seeding device of seeding machine |
| CN202713925U (en) * | 2012-07-31 | 2013-02-06 | 河北省农业机械化研究所有限公司 | Needle head type pneumatic seeding apparatus |
| CN203261689U (en) * | 2013-05-10 | 2013-11-06 | 湖南农业大学 | Air-suction rotary drum type small-size-seed sowing device |
| WO2014173261A1 (en) * | 2013-04-21 | 2014-10-30 | Liu Baocai | Pneumatic sowing and seed discharging system |
| CN104365238A (en) * | 2014-11-13 | 2015-02-25 | 石河子大学 | Roller air suction array type precision seed-metering device |
| CN210444827U (en) * | 2019-05-28 | 2020-05-05 | 青岛农业大学 | Pneumatic shaft pinhole type precision seed sowing device |
-
2019
- 2019-05-28 CN CN201910450701.8A patent/CN110192460B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201081892Y (en) * | 2007-03-08 | 2008-07-09 | 王继东 | Gas intaking seeding device of seeding machine |
| CN202713925U (en) * | 2012-07-31 | 2013-02-06 | 河北省农业机械化研究所有限公司 | Needle head type pneumatic seeding apparatus |
| WO2014173261A1 (en) * | 2013-04-21 | 2014-10-30 | Liu Baocai | Pneumatic sowing and seed discharging system |
| CN203261689U (en) * | 2013-05-10 | 2013-11-06 | 湖南农业大学 | Air-suction rotary drum type small-size-seed sowing device |
| CN104365238A (en) * | 2014-11-13 | 2015-02-25 | 石河子大学 | Roller air suction array type precision seed-metering device |
| CN210444827U (en) * | 2019-05-28 | 2020-05-05 | 青岛农业大学 | Pneumatic shaft pinhole type precision seed sowing device |
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| CN110192460A (en) | 2019-09-03 |
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