CN214507917U - Double-disc air-suction type high-speed precision corn seed sowing device - Google Patents
Double-disc air-suction type high-speed precision corn seed sowing device Download PDFInfo
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- CN214507917U CN214507917U CN202120497326.5U CN202120497326U CN214507917U CN 214507917 U CN214507917 U CN 214507917U CN 202120497326 U CN202120497326 U CN 202120497326U CN 214507917 U CN214507917 U CN 214507917U
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Abstract
The utility model belongs to the technical field of agricultural machine, in particular to high-speed smart volume maize seed metering ware of double-disk air-suction type, it includes: the seed metering device comprises a shell (1), a seed scraper (2), a seed metering disc (3), a pressure plate (4), a sealing ring (5), a vacuum chamber (6), a transmission shaft (8), a first bearing (9), a second bearing (11), a connecting sleeve (12) and a seed guide pipe (13); the double-row seed plates are symmetrically arranged and the holes are distributed in a staggered manner, so that pressure difference is formed between the inner side and the outer side of the double-row seed plates under the action of a fan, seeds on the two sides are adsorbed on the double plates under the action of the pressure difference, and the seeds rotate along with the seed metering plate (3) and fall into the seed guide pipe (13) in sequence to complete double-plate seed metering. The double-row seed plate precision seeding machine has the advantages that the number of the holes is more than that of a single plate on the premise that the air pressure distribution uniformity of the air chamber is not influenced, and the effect of high-speed precision seeding of double-row seed plates can be achieved by reducing the rotating speed of the seed discharging plate or improving the operation speed under the condition that the seed falling number and the distance are constant.
Description
Technical Field
The utility model belongs to the technical field of agricultural machine, in particular to high-speed smart volume maize seed metering ware of double-disk air-suction type.
Background
The seed metering device is a key structure of the corn precision seeding machine for ensuring the seeding quality, so the seed metering device has important significance for the research of the corn precision seed metering device. At present, the seed sowing device mainly has mechanical type, pneumatic type and the like, and the mechanical type seed sowing device has better universality on the whole, but has the phenomena of seed damage, uneven seed sowing, seed leakage and the like; the pneumatic seed sowing device forms a certain vacuum degree in a closed air chamber, seeds are fixed on holes of a seed sowing plate by utilizing suction or pressure and rotate along with the seed sowing plate, when the seeds are rotated out of the air chamber, the seeds do not receive the action of the suction or pressure, and fall into a seed sowing pipe by virtue of self gravity, so that the seed sowing operation is realized. Compared with a mechanical seed sowing device, the pneumatic seed sowing device can reduce the damage to seeds, has better applicability, and can keep certain stability during high-speed operation.
The size and the number of the holes of the air-suction type single-disc seed sowing device are limited, the operation speed is limited when the seed is sowed at high speed, and in order to solve the problem, a double-disc air-suction type high-speed precise corn seed sowing device is designed, when the size and the rotating speed of the seed sowing disc are constant values, the seed feeding quantity can be increased by adopting double rows of seed sowing discs, and therefore the operation speed is improved. The double-row seed plate air suction seeding device can realize the effect of double-row seed plate high-speed precision seeding by reducing the rotating speed of the seed plate or improving the operation speed under the condition of certain seed falling quantity and spacing, and has the advantages that seeds can fall down one time in sequence during seed discharging and fall into the same seed discharging device on the premise of not influencing the distribution uniformity of air chamber air pressure, and the seed plate air suction seeding device can realize the effect of double-row seed plate high-speed precision seeding.
Disclosure of Invention
The utility model aims to provide a mould with more holes than a single disc without affecting the air pressure distribution uniformity of an air chamber; under the condition of certain seed falling quantity and certain distance, the double-disc air-suction type high-speed precision corn seed sowing device can achieve the effect of double-row seed disc high-speed precision sowing by reducing the rotating speed of the seed sowing disc or increasing the operation speed.
The utility model aims at realizing through the following technical scheme:
a double-disk air-suction type high-speed precise corn seed sowing device comprises: the seed metering device comprises a shell 1, a seed scraper 2, a seed metering disc 3, a pressure plate 4, a sealing ring 5, a vacuum chamber 6, a transmission shaft 8, a first bearing 9, a second bearing 11, a connecting sleeve 12 and a seed guide pipe 13;
wherein, the left shell 1, the seed scraping device 2, the seed discharging plate 3, the pressure plate 4 and the sealing ring 5 are symmetrically arranged with the right shell 1, the seed scraping device 2, the seed discharging plate 3, the pressure plate 4 and the sealing ring 5 from outside to inside relative to the vacuum chamber 6;
the vacuum chamber 6 is arranged on the transmission shaft 8 through a first bearing 9; the shell 1 is arranged on the transmission shaft 8 through a second bearing 11; the left shell 1 is detachably connected with the left side of the vacuum chamber 6, and a first accommodating space is formed between the two; the right shell 1 is detachably connected with the right side of the vacuum chamber 6, and a second accommodating space is formed between the two;
the left seed discharging plate 3, the left pressure plate 4 and the left sealing ring 5 are positioned in the first accommodating space and are arranged on the transmission shaft 8 from outside to inside; the right seed discharging plate 3, the pressure plate 4 and the sealing ring 5 are positioned in the second accommodating space and are arranged on the transmission shaft 8 from outside to inside;
the vacuum chamber 6 comprises a fan port 6-1 and a negative pressure cavity 6-2; wherein, the fan port 6-1 is positioned at the top of the vacuum chamber 6, the left side and the right side of the vacuum chamber 6 are respectively provided with a negative pressure cavity 6-2 which is communicated with the left side and the right side, and the fan port 6-1 is communicated with the negative pressure cavities 6-2 on the left side and the right side;
the seed guide pipe 13 comprises a plastic gasket 13-1, a pipe cavity 13-2 and an inoculation port 13-3; wherein the content of the first and second substances,
the top of the seed guide pipe 13 is provided with an inoculation port 13-3; the catheter 13 is internally provided with a lumen 13-2, and the section of the lumen 13-2 is of a Y-shaped structure; the Y-shaped structure of the tube cavity 13-2 comprises a V-shaped structure at the upper part and an I-shaped structure communicated with the bottom of the V-shaped structure; the plastic gasket 13-1 is fixedly bonded on the side wall of the V-shaped structure at the upper part of the Y-shaped structure of the tube cavity 13-2;
the seed scraper 2 comprises an upper gasket 2-1, a seed scraping knife 2-2, a lower gasket 2-3 and a connecting column 2-4; wherein the content of the first and second substances,
the connecting column 2-4 is fixed on the seed scraping knife 2-2; the left seed scraper 2 penetrates through an upper gasket 2-1 and a lower gasket 2-3 through bolts to be connected and fixed on a connecting plate 1-2 of the left shell 1, and the right seed scraper 2 penetrates through the upper gasket 2-1 and the lower gasket 2-3 through bolts to be connected and fixed on a connecting plate 1-2 of the right shell 1; the left and right connecting posts 2-4 are opposite to each other; the connecting sleeve 12 is sleeved on the connecting columns 2-4 on the left side and the right side.
The size of the shaped holes on the left side and the right side of the seed sowing plate 3 is the same, the holes are uniformly distributed in a staggered mode, and the staggered angle is as follows:
0.5φ＝360°/2×N
wherein N is the number of single disc holes.
A certain distance d exists between the seed sowing plates 3 on the left side and the right side, and the distance d is 20-40 mm.
The pressure plate 4 and the sealing ring 5 are respectively matched with the vacuum chamber 6 in a sealing way and are connected and fixed in the axial position by a bolt 7 and a nut 10.
The shell 1 comprises a seed inlet 1-1 and a connecting plate 1-2; wherein, the top of the shell 1 is provided with a seed inlet 1-1, and the outside of the shell 1 is provided with a connecting plate 1-2.
The beneficial effects of the utility model reside in that:
1. the double-row seed plates are symmetrically arranged and the holes are distributed in a staggered manner, so that pressure difference is formed between the inner side and the outer side of the double-row seed plates under the action of a fan, seeds on the two sides are adsorbed on the double plates under the action of the pressure difference, and the seeds sequentially fall into the seed guide pipe 13 along with the rotation of the seed discharging plate 3, and double-plate seed discharging is completed. The seeding device has more holes than a single plate on the premise of not influencing the air pressure distribution uniformity of the air chamber, and can achieve the effect of high-speed precision seeding of double rows of seed plates by reducing the rotating speed of the seed discharging plate or improving the operation speed under the condition of certain seed falling quantity and spacing;
2. the distance d between the two seed discharging plates 3 is fixed to be 20-40 mm, so that double-plate corn seeds can smoothly fall into the seed guide pipe 13 in a staggered mode, the Y-shaped seed guide pipe 13 is designed, and a plastic gasket 13-1 is added to reduce seed bounce, so that the purpose of precision seeding is achieved;
3. the seed scraping devices 2 on the two sides are connected by the connecting sleeve 12, so that linkage adjustment is realized, and the consistency of seed filling effects on the two sides is ensured.
Drawings
FIG. 1 is an exploded view of the double-disk air-aspiration type high-speed precision corn seed-metering device of the present invention;
FIG. 2 is a cross-sectional view of the double-disk air-suction type high-speed precision corn seed sowing device of the present invention;
fig. 3 is a schematic view of a double-row seed plate and seed scraper 2 of the double-plate air-suction type high-speed precision corn seed sowing device of the present invention;
FIG. 4 is an exploded view of the seed scraper 2 of the double-disk air-aspiration type high-speed precision corn seed sowing device of the present invention;
FIG. 5 is a schematic view of the housing 1 and seed guide 13 of the double-disk air-aspiration type high-speed precision corn seed-metering device of the present invention;
fig. 6 is a cross-sectional view of the seed guiding tube 13 of the double-disk air-suction type high-speed precision corn seed sowing device of the present invention.
Reference numerals:
1 case 1-1 seed inlet
1-2 connecting plate 2 seed scraping device
2-1 upper gasket 2-2 seed scraping knife
2-3 lower gasket 2-4 connecting column
3 seed-metering disc 4 pressure disc
5 sealing ring 6 vacuum chamber
6-1 blower port 6-2 negative pressure cavity
7 bolt 8 transmission shaft
9 first bearing 10 nut
11 second bearing 12 connecting sleeve
13-plastic gasket for pipe guide 13-1
13-2 lumen 13-3 inoculation port
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples.
As shown in fig. 1, a double-disk air-aspiration type high-speed precision corn seed sowing device comprises: the seed metering device comprises a shell 1, a seed scraper 2, a seed metering disc 3, a pressure plate 4, a sealing ring 5, a vacuum chamber 6, a bolt 7, a transmission shaft 8, a first bearing 9, a nut 10, a second bearing 11, a connecting sleeve 12 and a seed guide pipe 13.
Wherein, the left shell 1, the seed scraping device 2, the seed discharging plate 3, the pressure plate 4 and the sealing ring 5 are symmetrically arranged with the right shell 1, the seed scraping device 2, the seed discharging plate 3, the pressure plate 4 and the sealing ring 5 from outside to inside relative to the vacuum chamber 6.
As shown in fig. 2, the vacuum chamber 6 is provided on the transmission shaft 8 through the first bearing 9. The housing 1 is arranged on the drive shaft 8 via a second bearing 11. The left shell 1 is detachably connected with the left side of the vacuum chamber 6, and a first accommodating space is formed between the two; the right housing 1 is detachably connected to the right side of the vacuum chamber 6, with a second receiving space formed therebetween.
The left seed discharging plate 3, the pressure plate 4 and the sealing ring 5 are positioned in the first accommodating space and are arranged on the transmission shaft 8 from outside to inside. The right seed discharging plate 3, the pressure plate 4 and the sealing ring 5 are positioned in the second accommodating space and are arranged on the transmission shaft 8 from outside to inside. The pressure plate 4 and the sealing ring 5 are respectively matched with the vacuum chamber 6 in a sealing way and are connected and fixed in the axial position by a bolt 7 and a nut 10.
The vacuum chamber 6 comprises a fan port 6-1 and a negative pressure cavity 6-2; the fan port 6-1 is positioned at the top of the vacuum chamber 6, the left side and the right side of the vacuum chamber 6 are respectively provided with a negative pressure cavity 6-2 which is communicated with the left side and the right side, and the fan port 6-1 is communicated with the negative pressure cavities 6-2 on the left side and the right side. When the seed sowing device works, air is sucked out from the fan port 6-1, so that pressure difference is formed between the inner side and the outer side of the double-row seed sowing plates.
As shown in FIG. 5, the housing 1 includes an inlet port 1-1 and an attachment plate 1-2. Wherein, the top of the shell 1 is provided with a seed inlet 1-1, and the outside of the shell 1 is provided with a connecting plate 1-2.
As shown in fig. 5 and 6, the seed guide 13 includes a plastic pad 13-1, a lumen 13-2 and an inoculation port 13-3; wherein the content of the first and second substances,
the top of the seed guiding pipe 13 is provided with an inoculation port 13-3. The catheter 13 is internally provided with a lumen 13-2, and the section of the lumen 13-2 is of a Y-shaped structure. The Y-shaped structure of the tube cavity 13-2 comprises a V-shaped structure at the upper part and an I-shaped structure communicated with the bottom of the V-shaped structure. The plastic gasket 13-1 is bonded and fixed on the side wall of the upper V-shaped structure of the Y-shaped structure of the tube cavity 13-2.
The seed guide 13 is arranged below the rear part of the seed discharging disc 3. When the seed plate 3 seeds, the seeds fall into the inoculation port 13-3 of the seed guide pipe 13 in sequence, the bounce and seed falling impact force is reduced through the plastic gasket 13-1 on the Y-shaped structure of the pipe cavity 13-2, and finally the seed discharging operation is finished.
As shown in fig. 3 and 4, the seed scraper 2 comprises an upper gasket 2-1, a seed scraping knife 2-2, a lower gasket 2-3 and a connecting column 2-4; wherein the content of the first and second substances,
the connecting column 2-4 is fixed on the seed scraping knife 2-2; the left seed scraper 2 penetrates through the upper gasket 2-1 and the lower gasket 2-3 through bolts to be connected and fixed on the connecting plate 1-2 of the left shell 1, and the right seed scraper 2 penetrates through the upper gasket 2-1 and the lower gasket 2-3 through bolts to be connected and fixed on the connecting plate 1-2 of the right shell 1. The left and right connecting posts 2-4 are opposite each other. The connecting sleeve 12 is sleeved on the connecting columns 2-4 on the left side and the right side, so that the seed scraping device 2 on the left side and the right side is fixed, the position is adjusted in a linkage manner, and the consistency of seed filling effects on two sides is ensured.
The size of the shaped holes on the left side and the right side of the seed sowing plate 3 is the same, the holes are uniformly distributed in a staggered mode, and the staggered angle is as follows:
0.5φ＝360°/2×N
wherein N is the number of single disc holes.
There is certain distance d between left side and the seed metering dish 3 on right side, considers the size of maize seed and the consumption of fan, for guaranteeing that maize seed falls into seed guide 13 smoothly, distance d takes 20 ~ 40 mm.
Under the prerequisite that does not influence air chamber atmospheric pressure evenly distributed, the utility model discloses a high-speed smart volume maize seed metering ware of double-deck air-suction type possess more type hole quantity than the single-deck, under the certain circumstances of seed quantity and interval of falling, can reach the effect of the high-speed smart volume seeding of double seed dish through reducing seed metering dish rotational speed or improving the operation speed.
The utility model discloses a working process does:
the utility model discloses a high-speed smart volume maize seed metering ware of double-deck air-suction type during operation, from fan mouth 6-1 suction air for the inside and outside differential pressure that forms simultaneously of double seed dish. Corn seeds fall into the left and right shells 1 from the seed inlets 1-1 on the two sides respectively, are adsorbed on the seed discharging plate 3 under the pushing action of the subsequent corn seeds and the adsorption action of the suction holes on the left and right seed discharging plates 3, and rotate along with the seed discharging plates. A portion of the corn seeds that are not firmly gripped then fall back into the seed plate 3 under the influence of gravity, centrifugal force or the seed scraper 2. When the adsorbed corn seeds reach the tail part of the seed sowing device 3, the corn seeds sequentially fall into the seed guiding pipe 13, the bounce of the corn seeds is reduced through the plastic gasket 13-1 arranged on the Y-shaped structure of the pipe cavity 13-2, and finally the double-disc air-suction type high-speed precision seed sowing operation is completed.
Claims (5)
1. The utility model provides a high-speed smart volume maize seed metering ware of double-disk air-suction type which characterized in that: the high-speed smart volume maize seed metering ware of double-disk air-suction type includes: the seed metering device comprises a shell (1), a seed scraper (2), a seed metering disc (3), a pressure plate (4), a sealing ring (5), a vacuum chamber (6), a transmission shaft (8), a first bearing (9), a second bearing (11), a connecting sleeve (12) and a seed guide pipe (13);
wherein, the left shell (1), the seed scraping device (2), the seed discharging plate (3), the pressure plate (4) and the sealing ring (5) are symmetrically arranged with the right shell (1), the seed scraping device (2), the seed discharging plate (3), the pressure plate (4) and the sealing ring (5) from outside to inside relative to the vacuum chamber (6);
the vacuum chamber (6) is arranged on the transmission shaft (8) through a first bearing (9); the shell (1) is arranged on the transmission shaft (8) through a second bearing (11); the left shell (1) is detachably connected with the left side of the vacuum chamber (6), and a first accommodating space is formed between the left shell and the vacuum chamber; the right shell (1) is detachably connected with the right side of the vacuum chamber (6), and a second accommodating space is formed between the two;
the left seed discharging plate (3), the left pressure plate (4) and the left sealing ring (5) are positioned in the first accommodating space and are arranged on the transmission shaft (8) from outside to inside; the right seed discharging plate (3), the pressure plate (4) and the sealing ring (5) are positioned in the second accommodating space and are arranged on the transmission shaft (8) from outside to inside;
the vacuum chamber (6) comprises a fan port (6-1) and a negative pressure cavity (6-2); wherein, the fan port (6-1) is positioned at the top of the vacuum chamber (6), the left side and the right side of the vacuum chamber (6) are respectively provided with a negative pressure cavity (6-2) which is communicated with the left side and the right side, and the fan port (6-1) is communicated with the negative pressure cavities (6-2) at the left side and the right side;
the seed guide pipe (13) comprises a plastic gasket (13-1), a pipe cavity (13-2) and an inoculation port (13-3); wherein the content of the first and second substances,
the top of the seed guide pipe (13) is provided with an inoculation port (13-3); the catheter (13) is internally provided with a lumen (13-2), and the cross section of the lumen (13-2) is of a Y-shaped structure; the Y-shaped structure of the tube cavity (13-2) comprises a V-shaped structure at the upper part and an I-shaped structure communicated with the bottom of the V-shaped structure; the plastic gasket (13-1) is fixedly bonded on the side wall of the V-shaped structure at the upper part of the Y-shaped structure of the pipe cavity (13-2);
the seed scraper (2) comprises an upper gasket (2-1), a seed scraping knife (2-2), a lower gasket (2-3) and a connecting column (2-4); wherein the content of the first and second substances,
the connecting column (2-4) is fixed on the seed scraping knife (2-2); the left seed scraping device (2) penetrates through the upper gasket (2-1) and the lower gasket (2-3) through bolts to be connected and fixed on the connecting plate (1-2) of the left shell (1), and the right seed scraping device (2) penetrates through the upper gasket (2-1) and the lower gasket (2-3) through bolts to be connected and fixed on the connecting plate (1-2) of the right shell (1); the left and right connecting columns (2-4) are opposite to each other; the connecting sleeve (12) is sleeved on the connecting columns (2-4) on the left side and the right side.
2. The double-disk air-aspiration type high-speed precision corn seed-metering device according to claim 1, characterized in that: the size of the shaped holes on the left side and the right side of the seed sowing plate (3) is the same, the shaped holes are uniformly distributed in a staggered mode, and the staggered angle is as follows:
0.5φ＝360°/2×N
wherein N is the number of single disc holes.
3. The double-disk air-aspiration type high-speed precision corn seed-metering device according to claim 1 or 2, characterized in that: a certain distance d exists between the seed metering discs (3) on the left side and the right side, and the distance d is 20-40 mm.
4. The double-disk air-aspiration type high-speed precision corn seed-metering device according to claim 1 or 2, characterized in that: the pressure plate (4) and the sealing ring (5) are respectively matched with the vacuum chamber (6) in a sealing way, and are connected and fixed at the axial position by a bolt (7) and a nut (10).
5. The double-disk air-aspiration type high-speed precision corn seed-metering device according to claim 1 or 2, characterized in that: the shell (1) comprises a seed inlet (1-1) and a connecting plate (1-2); wherein, the top of the shell (1) is provided with a seed inlet (1-1), and the outside of the shell (1) is provided with a connecting plate (1-2).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120497326.5U CN214507917U (en) | 2021-03-08 | 2021-03-08 | Double-disc air-suction type high-speed precision corn seed sowing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120497326.5U CN214507917U (en) | 2021-03-08 | 2021-03-08 | Double-disc air-suction type high-speed precision corn seed sowing device |
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| CN214507917U true CN214507917U (en) | 2021-10-29 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114557172A (en) * | 2022-04-06 | 2022-05-31 | 青岛大一农业机械有限公司 | Vegetable and medicinal material air-suction type precision seeder for combined industry |
| CN115152372A (en) * | 2022-09-02 | 2022-10-11 | 中国农业大学 | Rotary suction-assisting type double-row precision seed sowing device |
-
2021
- 2021-03-08 CN CN202120497326.5U patent/CN214507917U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114557172A (en) * | 2022-04-06 | 2022-05-31 | 青岛大一农业机械有限公司 | Vegetable and medicinal material air-suction type precision seeder for combined industry |
| CN114557172B (en) * | 2022-04-06 | 2022-12-02 | 青岛大一农业机械有限公司 | Vegetable and medicinal material air-suction type precision seeder in combined industry |
| CN115152372A (en) * | 2022-09-02 | 2022-10-11 | 中国农业大学 | Rotary suction-assisting type double-row precision seed sowing device |
| CN115152372B (en) * | 2022-09-02 | 2022-11-08 | 中国农业大学 | Rotary suction-assisting type double-row precision seed sowing device |
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