CN108432421B - Sectional type air suction and air blowing distribution mechanism for precision seed sowing device - Google Patents
Sectional type air suction and air blowing distribution mechanism for precision seed sowing device Download PDFInfo
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- CN108432421B CN108432421B CN201810618419.1A CN201810618419A CN108432421B CN 108432421 B CN108432421 B CN 108432421B CN 201810618419 A CN201810618419 A CN 201810618419A CN 108432421 B CN108432421 B CN 108432421B
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- 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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Abstract
The invention discloses a sectional type air suction and air blowing distribution mechanism for a precision seed planter. The pneumatic distribution cover and the pneumatic distribution center are arranged on the shaft, the sealing working surface of the pneumatic distribution cover is in contact with the sealing working surface of the pneumatic distribution center, the outer bearing and the inner bearing are arranged between the pneumatic distribution cover and the pneumatic distribution center, and the elastic locking device is arranged at one end of the shaft. The sectional type air suction and air blowing distribution mechanism for the precision seed metering device can meet the working requirements of seed suction, seed blowing and seed keeping of the seed metering device, can rotate at a higher speed, simultaneously ensures pneumatic sealing, has small rotation resistance, improves the seeding efficiency of the pneumatic precision seeding machine, has the advantages of simple structure, avoidance of use of a complex control system, good reliability and the like.
Description
Technical Field
The invention belongs to agricultural seeding machinery, and mainly relates to a sectional type air suction and air blowing distribution mechanism for a precision seed planter.
Background
The pneumatic precision seeder needs an air suction and air blowing distribution mechanism which can control and switch air suction, air blowing and air-free states at proper positions according to the working requirements of seed suction, seed blowing and seed maintaining of a seed metering device. In order to improve the seeding efficiency of the pneumatic precision seeder, the air suction and air blowing distribution mechanism is required to rotate at a higher speed, the pneumatic sealing is ensured, and too large resistance cannot be applied to the rotation. The conventional means can not meet the working requirements of the air suction and air blowing distribution mechanism, so that the air suction and air blowing distribution mechanism meeting the requirements needs to be designed.
Disclosure of Invention
The invention aims to design an air suction and air blowing distribution mechanism meeting the requirements of a pneumatic precision seeder.
The invention has the technical scheme that the sectional type air suction and air blowing distribution mechanism for the precision seed sowing device comprises an air distribution cover 1, an air distribution center 4, an outer bearing 5, an inner bearing 7, a shaft 6 and an elastic locking device, wherein the air distribution cover 1 and the air distribution center 4 are arranged on the shaft 6, a sealing working surface 18 of the air distribution cover is contacted with a sealing working surface 22 of the air distribution center, a center bearing 8 is arranged between the air distribution center 4 and the shaft 6, the air distribution center 4 rotates relative to the shaft 6, a key is arranged between the air distribution cover 1 and the shaft 6, the outer bearing 5 and the inner bearing 7 are arranged between the air distribution cover 1 and the air distribution center 4, and the elastic locking device is arranged at one end of the shaft 6 and is used for tightly attaching and sealing the sealing working surface 18 of the air distribution cover and the sealing working surface 22 of the air distribution center;
an outer bearing seat 16, a sealing working surface 18 of the pneumatic distribution cover, an inner bearing seat 20 and a shaft hole 9 are sequentially arranged on the inner end surface of the pneumatic distribution cover 1, a key groove 15 is formed in the shaft hole 9, a negative pressure air chamber groove 17, a positive pressure air chamber groove 21 and other non-groove areas are distributed on the sealing working surface 18 of the pneumatic distribution cover, a certain interval is formed between the negative pressure air chamber groove 17 and the positive pressure air chamber groove 21, a negative pressure air suction hole 14 and a positive pressure air inlet hole 12 are respectively formed in the negative pressure air chamber groove 17 and the positive pressure air chamber groove 21, a positive pressure air inlet pipe connector 11 and a negative pressure air suction pipe connector 13 are arranged on the outer end surface of the pneumatic distribution cover 1, the positive pressure air inlet pipe connector 11 is communicated with the positive pressure air inlet hole 12, and the negative pressure air;
the inner end surface of the pneumatic distribution center 4 is sequentially provided with a sealing working surface 22, a bearing seat 26 and a shaft hole 9 of the pneumatic distribution center, the sealing working surface 22 of the pneumatic distribution center is distributed with vent holes 23, each vent hole 23 is communicated with a corresponding gas pipe threaded hole 27 on the outer circular surface of the pneumatic distribution center 4, the outer circular side of the sealing working surface 22 of the pneumatic distribution center is provided with an outer bearing mounting surface 25, and the inner circular surface of the sealing working surface 22 of the pneumatic distribution center is provided with an inner bearing mounting surface 24;
the elastic locking device consists of a locking spring 2 and a locking nut 3, one end of the locking spring 2 is arranged in a locking spring groove 10 in the center of the outer end face of the pneumatic distribution cover 1, and the other end of the locking spring 2 is provided with the locking nut 3.
The working radians of the negative pressure air chamber groove 17, the positive pressure air chamber groove 21 and other non-groove areas on the sealing working surface 18 of the pneumatic distribution cover are determined according to the working requirements of the seed metering device for sucking seeds, blowing seeds and keeping seeds.
The sealing working surface 18 of the pneumatic distribution cover is also provided with antifriction grooves 19, and the working radian of the antifriction grooves 19 is determined according to the working radian of a non-groove area.
The number of the vent holes 23 distributed on the sealing working surface 22 of the pneumatic distribution center is determined according to the working requirements of seed suction, seed blowing and seed holding of the seed metering device.
The number of ventilation holes 23 distributed on the sealing face 22 of the pneumatic distribution center is 14.
The sectional type air suction and air blowing distribution mechanism for the precision seed planter provided by the invention has the following advantages that:
1. the sectional type air suction and air blowing distribution mechanism for the precision seed metering device can set working radians of a negative pressure air chamber groove, a positive pressure air chamber groove and other non-groove areas on the sealing working surface of the pneumatic distribution cover according to the working requirements of seed suction, seed blowing and seed keeping of the seed metering device, and is matched with the air vents on the sealing working surface of the pneumatic distribution center, so that the control conversion among air suction, air blowing and non-air states at a proper position is realized, and the working requirements of seed suction, seed blowing and seed keeping of the seed metering device are met.
2. The outer bearing and the inner bearing are arranged between the pneumatic distribution cover and the pneumatic distribution center of the sectional type air suction and air blowing distribution mechanism for the precision seed sowing device, the pneumatic precision seed sowing device can rotate at a higher speed, simultaneously ensures pneumatic sealing, has small rotation resistance, and improves the sowing efficiency of the pneumatic precision seed sowing machine.
3. The sectional type air suction and air blowing distribution mechanism for the precision seed planter has the advantages of simple structure, avoidance of using a complex control system, good reliability and the like.
Drawings
FIG. 1 is an exploded view of a segmented air-aspiration and air-blow dispensing mechanism for a precision seed planter.
Figure 2 is an outer end view of the pneumatic dispensing cap.
Figure 3 is a view of the inner end face of the pneumatic distribution cap.
Fig. 4 is a three-dimensional view of the direction of the inner end surface of the pneumatic distribution cap.
Figure 5 is a view of the inner end face of the pneumatic distribution center.
Figure 6 is a side view of a pneumatic distribution center.
FIG. 7 is an assembled cross-sectional view of a segmented air-aspiration and air-blow dispensing mechanism for a precision seed planter.
The numbers in the figures illustrate the following:
1. the pneumatic distribution cover comprises a pneumatic distribution cover, 2, a locking spring, 3, a locking nut, 4, a pneumatic distribution center, 5, an outer bearing, 6, a shaft, 7, an inner bearing, 8, a center bearing, 9, a shaft hole, 10, a locking spring groove, 11, a positive pressure air inlet connector, 12, a positive pressure air inlet, 13, a negative pressure air exhaust connector, 14, a negative pressure air exhaust hole, 15, a key groove, 16, an outer bearing seat, 17, a negative pressure air chamber groove, 18, a sealing working surface of the pneumatic distribution cover, 19, an anti-friction groove, 20, an inner bearing seat, 21, a positive pressure air chamber groove, 22, a sealing working surface of the pneumatic distribution center, 23, an air vent, 24, an inner bearing mounting surface, 25, an outer bearing mounting surface, 26, a bearing seat, 27 and a threaded
Detailed Description
In order to make the implementation objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the accompanying drawings in the embodiments of the present invention.
Examples
A segmented air-suction and air-blowing distribution mechanism for a precision seed planter as described in this embodiment is shown in fig. 1-7.
As shown in fig. 1 and 7, the sectional type air suction and air blowing distribution mechanism for precision seed metering device in this embodiment includes an air distribution cover 1, an air distribution center 4, an outer bearing 5, an inner bearing 7, a shaft 6 and an elastic locking device, the air distribution cover 1 and the air distribution center 4 are installed on the shaft 6, a sealing working surface 18 of the air distribution cover contacts with a sealing working surface 22 of the air distribution center, a center bearing 8 is installed between the air distribution center 4 and the shaft 6, the air distribution center 4 rotates relative to the shaft 6, a key is installed between the air distribution cover 1 and the shaft 6, the air distribution cover 1 is stationary relative to the shaft 6, the outer bearing 5 and the inner bearing 7 are installed between the air distribution cover 1 and the air distribution center 4, the elastic locking device is installed at one end of the shaft 6, for the sealing face 18 of the air distribution cap to seal tightly against the sealing face 22 of the air distribution centre.
As shown in fig. 2, 3 and 4, an outer bearing seat 16, a sealing working surface 18 of the pneumatic distribution cover, an inner bearing seat 20 and a shaft hole 9 are sequentially arranged on an inner end surface of the pneumatic distribution cover 1, a key groove 15 is formed in the shaft hole 9, a negative pressure air chamber groove 17, a positive pressure air chamber groove 21 and other non-groove areas are distributed on the sealing working surface 18 of the pneumatic distribution cover, a certain interval is formed between the negative pressure air chamber groove 17 and the positive pressure air chamber groove 21, a negative pressure air suction hole 14 and a positive pressure air inlet hole 12 are respectively arranged in the negative pressure air chamber groove 17 and the positive pressure air chamber groove 21, a positive pressure air inlet pipe connector 11 and a negative pressure air suction pipe connector 13 are arranged on an outer end surface of the pneumatic distribution cover 1, the positive pressure air inlet pipe connector 11 is communicated with the positive pressure air connector 12, and the negative pressure air suction. The outer race of the outer bearing 5 is mounted in the outer bearing seat 16 and the inner race of the inner bearing 7 is mounted on the inner bearing seat 20.
The working radians of the negative pressure air chamber groove 17, the positive pressure air chamber groove 21 and other non-groove areas on the sealing working surface 18 of the pneumatic distribution cover are determined according to the working requirements of the seed metering device for sucking seeds, blowing seeds and keeping seeds. In this embodiment, the arc of operation of the negative pressure chamber slot 17 is 285 ° and the arc of operation of the positive pressure chamber slot 21 is 20 °.
In the embodiment, in order to reduce the friction between the sealing working surface 18 of the pneumatic distribution cover and the sealing working surface 22 of the pneumatic distribution center, the surface of the non-groove area is provided with a friction reducing groove 19, and the working radian of the friction reducing groove 19 is determined according to the working radian of the non-groove area.
As shown in fig. 5 and 6, the inner end surface of the pneumatic distribution center 4 is sequentially provided with a sealing working surface 22, a bearing seat 26 and a shaft hole 9 of the pneumatic distribution center, the sealing working surface 22 of the pneumatic distribution center is distributed with vent holes 23, each vent hole 23 is communicated with a corresponding gas pipe threaded hole 27 on the outer circular surface of the pneumatic distribution center 4, the outer circular side of the sealing working surface 22 of the pneumatic distribution center is provided with an outer bearing mounting surface 25, and the inner circular surface of the sealing working surface 22 of the pneumatic distribution center is provided with an inner bearing mounting surface 24. The inner race of the outer bearing 5 is mounted on the outer bearing mounting surface 25 and the outer race of the inner bearing 7 is mounted in the inner bearing mounting surface 24.
The number of the vent holes 23 distributed on the sealing working surface 22 of the pneumatic distribution center is determined according to the working requirements of seed suction, seed blowing and seed holding of the seed metering device.
In this embodiment, the number of ventilation holes 23 distributed on the sealing face 22 of the pneumatic distribution center is 14.
The elastic locking device consists of a locking spring 2 and a locking nut 3, one end of the locking spring 2 is arranged in a locking spring groove 10 in the center of the outer end face of the pneumatic distribution cover 1, and the other end of the locking spring 2 is provided with the locking nut 3. The locking nut 3 is screwed with the thread on the shaft 6, and the contact pressure of the sealing working surface 18 of the pneumatic distribution cover and the sealing working surface 22 of the pneumatic distribution center can be adjusted by adjusting the locking nut 3.
When the sectional type air suction and air blowing distribution mechanism for the precision seed metering device works, the air distribution center 4 is connected with the seed metering device through 14 pipes, one end of each pipe is communicated with an air pipe threaded hole 27 on the outer circular surface of the air distribution center 4, the other end of each pipe is communicated with the seed metering device, and when the air distribution center 4 rotates, the pipes are respectively controlled and converted between air suction, air blowing and air-free states, so that the working requirements of the seed metering device on seed suction, seed blowing and seed keeping are met.
Because the outer bearing 5 and the inner bearing 7 are arranged between the pneumatic distribution cover 1 and the pneumatic distribution center 4 and can rotate at a higher speed, and simultaneously, the upper end face and the lower end face of the outer bearing 5 and the upper end face and the lower end face of the inner bearing 7 are respectively coated with sealing grease which are respectively positioned on two sides of the sealing working face 18 of the pneumatic distribution cover and the sealing working face 22 of the pneumatic distribution center, the pneumatic precision seeder has the advantages of better effect of blocking gas leakage, enhanced pneumatic sealing effect, small rotation resistance and capability of improving the seeding efficiency of the pneumatic precision seeder.
The sectional type air suction and air blowing distribution mechanism for the precision seed sowing device has the advantages of being simple in structure, good in reliability and the like, and a complex control system is avoided.
Finally, it should be pointed out that: the above examples are only for illustrating the technical solutions of the present invention, and are not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (5)
1. The utility model provides a sectional type air suction and air blowing distribution mechanism that precision seed metering ware was used which characterized by: comprises a pneumatic distribution cover (1), a pneumatic distribution center (4), an outer bearing (5), an inner bearing (7), a shaft (6) and an elastic locking device, wherein the pneumatic distribution cover (1) and the pneumatic distribution center (4) are arranged on the shaft (6), a sealing working surface (18) of the pneumatic distribution cover is contacted with a sealing working surface (22) of the pneumatic distribution center, a central bearing (8) is arranged between the pneumatic distribution center (4) and the shaft (6), the pneumatic distribution center (4) rotates relative to the shaft (6), a key is arranged between the pneumatic distribution cover (1) and the shaft (6), the outer bearing (5) and the inner bearing (7) are arranged between the pneumatic distribution cover (1) and the pneumatic distribution center (4), the elastic locking device is arranged at one end of the shaft (6), the sealing working surface (18) of the pneumatic distribution cover is tightly attached and sealed with the sealing working surface (22) of the pneumatic distribution center;
an outer bearing seat (16), a sealing working surface (18) of the pneumatic distribution cover, an inner bearing seat (20) and a shaft hole (9) are sequentially arranged on the inner end surface of the pneumatic distribution cover (1), a key groove (15) is formed in the shaft hole (9), a negative pressure air chamber groove (17), a positive pressure air chamber groove (21) and other non-groove areas are distributed on the sealing working surface (18) of the pneumatic distribution cover, a certain interval is arranged between the negative pressure air chamber groove (17) and the positive pressure air chamber groove (21), a negative pressure air exhaust hole (14) and a positive pressure air inlet hole (12) are respectively arranged in the negative pressure air chamber groove (17) and the positive pressure air chamber groove (21), the outer end face of the pneumatic distribution cover (1) is provided with a positive pressure air inlet connector (11) and a negative pressure air exhaust connector (13), the positive pressure air inlet connector (11) is communicated with a positive pressure air inlet hole (12), and the negative pressure air exhaust connector (13) is communicated with a negative pressure air exhaust hole (14);
the inner end surface of the pneumatic distribution center (4) is sequentially provided with a sealing working surface (22), a bearing seat (26) and a shaft hole (9) of the pneumatic distribution center, vent holes (23) are distributed on the sealing working surface (22) of the pneumatic distribution center, each vent hole (23) is communicated with a corresponding gas pipe threaded hole (27) on the outer circular surface of the pneumatic distribution center (4), the outer circular side of the sealing working surface (22) of the pneumatic distribution center is provided with an outer bearing mounting surface (25), and the inner circular surface of the sealing working surface (22) of the pneumatic distribution center is provided with an inner bearing mounting surface (24);
the elastic locking device is composed of a locking spring (2) and a locking nut (3), one end of the locking spring (2) is installed in a locking spring groove (10) in the center of the outer end face of the pneumatic distribution cover (1), and the other end of the locking spring (2) is provided with the locking nut (3).
2. The segmented air-aspiration and air-blow distribution mechanism for precision seed feeders of claim 1 wherein: the working radians of the negative pressure air chamber groove (17), the positive pressure air chamber groove (21) and other non-groove areas on the sealing working surface (18) of the pneumatic distribution cover are determined according to the working requirements of the seed metering device for sucking seeds, blowing seeds and keeping seeds.
3. The segmented air-aspiration and air-blow distribution mechanism for precision seed feeders of claim 1 wherein: and antifriction grooves (19) are also distributed on the sealing working surface (18) of the pneumatic distribution cover, and the working radian of the antifriction grooves (19) is determined according to the working radian of a non-groove area.
4. The segmented air-aspiration and air-blow distribution mechanism for precision seed feeders of claim 1 wherein: the number of the vent holes (23) distributed on the sealing working surface (22) of the pneumatic distribution center is determined according to the working requirements of seed suction, seed blowing and seed holding of the seed metering device.
5. The segmented air-aspiration and air-blow distribution mechanism for precision seed feeders of claim 1 wherein: the number of the vent holes (23) distributed on the sealing working surface (22) of the pneumatic distribution center is 14.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810618419.1A CN108432421B (en) | 2018-06-15 | 2018-06-15 | Sectional type air suction and air blowing distribution mechanism for precision seed sowing device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810618419.1A CN108432421B (en) | 2018-06-15 | 2018-06-15 | Sectional type air suction and air blowing distribution mechanism for precision seed sowing device |
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| CN108432421A CN108432421A (en) | 2018-08-24 |
| CN108432421B true CN108432421B (en) | 2020-07-28 |
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| CN201810618419.1A Active CN108432421B (en) | 2018-06-15 | 2018-06-15 | Sectional type air suction and air blowing distribution mechanism for precision seed sowing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108781601B (en) * | 2018-09-05 | 2022-11-04 | 苏州益唯环保科技有限公司 | High-speed degradable water-soluble seed tape production equipment |
| CN111742661B (en) * | 2020-07-10 | 2021-07-27 | 中国农业大学 | Mechanical self-suction mechanical seed-shooting and seeding device |
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| JPH0773448B2 (en) * | 1990-04-16 | 1995-08-09 | 株式会社サークル鉄工 | Fukizero seeding method and its equipment |
| RU2240670C2 (en) * | 2002-12-25 | 2004-11-27 | ГУ Всероссийский научно-исследовательский институт агролесомелиорации | Pneumatic seeding unit |
| CN2838235Y (en) * | 2005-09-13 | 2006-11-22 | 徐国利 | The automatic seeding unit of air-sucking type |
| WO2014173261A1 (en) * | 2013-04-21 | 2014-10-30 | Liu Baocai | Pneumatic sowing and seed discharging system |
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| CN2922421Y (en) * | 2006-06-16 | 2007-07-18 | 徐国利 | Air suction-type automatic sowing device |
| CN201378935Y (en) * | 2009-03-18 | 2010-01-13 | 东风汽车股份有限公司 | Pneumatic precision seed sowing device |
| CN201709110U (en) * | 2010-06-09 | 2011-01-19 | 江苏省农业机械技术推广站 | Pneumatic seeding apparatus |
| CN102349382B (en) * | 2011-09-06 | 2013-11-06 | 华南农业大学 | Pneumatic dibbling seed feeding device |
| CN104756651B (en) * | 2015-03-18 | 2016-09-14 | 华南农业大学 | Precise seeder that a kind of small-sized seed is live and precise seeder group |
| CN206078036U (en) * | 2016-09-21 | 2017-04-12 | 华中农业大学 | Gas is inhaled outer smart quantity set of kind of formula that fills and is arranged ware |
| CN107318318A (en) * | 2017-06-20 | 2017-11-07 | 华南农业大学 | The adjustable Pneumatic seeding apparatus of one kind amount of broadcasting |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0773448B2 (en) * | 1990-04-16 | 1995-08-09 | 株式会社サークル鉄工 | Fukizero seeding method and its equipment |
| RU2240670C2 (en) * | 2002-12-25 | 2004-11-27 | ГУ Всероссийский научно-исследовательский институт агролесомелиорации | Pneumatic seeding unit |
| CN2838235Y (en) * | 2005-09-13 | 2006-11-22 | 徐国利 | The automatic seeding unit of air-sucking type |
| WO2014173261A1 (en) * | 2013-04-21 | 2014-10-30 | Liu Baocai | Pneumatic sowing and seed discharging system |
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