CN111972090A - Air-suction type adjustable-pitch spiral bevel-tooth seed sowing device - Google Patents
Air-suction type adjustable-pitch spiral bevel-tooth seed sowing device Download PDFInfo
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- CN111972090A CN111972090A CN202010874760.0A CN202010874760A CN111972090A CN 111972090 A CN111972090 A CN 111972090A CN 202010874760 A CN202010874760 A CN 202010874760A CN 111972090 A CN111972090 A CN 111972090A
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- seed
- seed sowing
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C7/00—Sowing
- A01C7/18—Machines for depositing quantities of seed at intervals
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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
-
- 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
- A01C7/206—Seed pipes
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- Life Sciences & Earth Sciences (AREA)
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- Environmental Sciences (AREA)
- Sowing (AREA)
Abstract
An air-suction type adjustable-pitch spiral bevel gear seed sowing device belongs to the technical field of agricultural machinery sowing machinery and structurally comprises a shell, a left retainer ring, a left end cover, a seed sowing shaft, a belt, a seed guiding device, a seed sowing wheel, a right retainer ring, a right end cover, an air suction pipeline, a lead screw transmission part, a motor, a seed protecting plate, a spring and a seed sowing wheel partition plate which are connected, the air-suction type adjustable-pitch spiral bevel gear seed sowing device is simple in structure and clear in working principle, and the phenomenon of seed sowing pulsation can be reduced due to the fact that the; meanwhile, an air suction structure is adopted, the seed filling performance is improved, the opening degree of the spiral conical tooth grooves can be adjusted through a lead screw distance adjusting mechanism, and the control of the seed discharging amount is realized; by arranging the seed guide device, the even and accurate plant spacing after seed feeding is ensured, and the qualification rate of the plant spacing of the seeds is greatly improved.
Description
Technical Field
The invention belongs to the technical field of agricultural machinery seeding machinery, relates to a seed sowing device, and particularly relates to an air-suction type pitch-adjustable spiral bevel gear seed sowing device.
Background
The seed metering device is a core component of the seeding machine and is a main factor for determining the characteristics and the seeding quality of the seeding machine. The quality of the working performance of the seeding apparatus directly influences the working efficiency of the seeding machine and the quality of the seedling emergence of crops. The outer grooved wheel type seed sowing device is the most commonly used seed sowing device on the current seed sowing machine, and has the advantages of simple structure, good universality, stable sowing quantity and the like, but the outer grooved wheel type seed sowing device stirs seeds to force seed sowing when the grooved wheels rotate, the grooved wheels rotate to the grooves to discharge more seeds, and the ridges are less, so that the seed flow is in a pulsating phenomenon, the uniformity of the seed sowing is influenced, the seed leakage phenomenon occurs when the seeds are filled, and the seed sowing quantity can not be controlled. In addition, when seeds are separated from the seed sowing device, the seeds fall freely in the seed guiding pipe under the action of gravity, and the seeds are inevitably disturbed by airflow in the process and have the phenomena of collision, bounce, friction and the like, so that the uniformity of initial throwing of the seeds from the seed sowing device is changed by the factors, the phenomena of uneven drop points and uneven planting distances are caused after the seeds are separated from the seed guiding pipe, and the growth of crops is influenced to a certain extent.
Disclosure of Invention
The invention aims to provide an air-suction type adjustable-pitch spiral bevel gear seed sowing device aiming at the defects in the prior art, the phenomenon of seed sowing pulse can be reduced through a spiral bevel gear structure of a seed sowing wheel, meanwhile, the air-suction structure is adopted, the seed filling performance is improved, and a lead screw distance adjusting mechanism is designed, so that the opening degree of a spiral bevel gear groove can be adjusted, and the seed sowing amount is controlled; through the seed guide device, the even and accurate plant spacing after the seed is thrown is ensured, and the qualification rate of the plant spacing of the seeds can be greatly improved.
The technical scheme of the invention is as follows: the utility model provides an air-aspiration formula adjustable pitch spiral awl tooth seed metering ware which characterized in that: the seed sowing device is formed by connecting a shell, a left check ring, a left end cover, a seed sowing shaft, a belt, a seed guiding device, a seed sowing wheel, a right check ring, a right end cover, a gas suction pipeline, a lead screw transmission part, a motor, a seed protecting plate, a spring and a seed sowing wheel partition plate; the seed sowing wheel is arranged inside the shell, the seed sowing shaft is connected in a shaft hole of the seed sowing wheel, a left end cover is connected and arranged on a left end surface of the shell, a right end cover is connected and arranged on a right end surface of the shell, a left check ring is arranged between the left end cover and the seed sowing wheel, the right check ring is arranged between the right end cover and the seed sowing wheel, the air suction chamber is of a closed cavity structure, the right end surface of the air suction chamber and the right end surface of the seed sowing wheel are in the same plane, the left end surface of the air suction chamber is fixedly attached to the right end surface of a partition plate of the seed sowing wheel, the outer surface of the air suction chamber is tightly attached to the hollow inner wall of the seed sowing wheel, the seed sowing wheel rotates on the outer surface of the air suction chamber, the left end of the air suction pipe is communicated with the air suction chamber, the right end of the air suction pipe extends out of the right end cover to be, one end of the spring is fixedly connected to the shell through a spring seat, the other end of the spring is fixedly connected to the seed protection plate, the lead screw penetrates through the whole seed sowing wheel, the right end of the lead screw extends out of the right end cover, and the lead screw is in transmission connection with the motor through a lead screw transmission part; the fixed setting of motor is in the lower extreme of right-hand member lid, the air suction room bottom surface constitutes the zero-pressure district with seed metering wheel cavity inner wall, it connects the bottom that sets up at the casing to lead kind of device, lead kind of device by the seed guide axle, lead kind of wheel, lead kind of baffle, lead kind of pipeline and constitute, it is equipped with a plurality of seed guide baffles to lead kind of taking turns to the equidistance, adjacent two lead and form between the kind baffle and lead kind of groove, the seed guide axle passes the seed guide axle, the seed guide axle pass through the belt with seed metering shaft transmission is connected.
The seed metering wheel, the seed metering wheel partition plate and the seed protection plate are all provided with two seed metering wheels and are of a bilateral symmetry structure, the seed metering wheels are of a conical structure, a plurality of air suction holes are formed in the spiral groove bottom of the seed metering wheels, and the air suction holes are communicated with the air suction chamber.
And the right end surface of the air suction chamber is provided with an air suction hole corresponding to the air suction pipeline.
The screw rod penetrates through the left and right seed sowing wheels, and is matched with the corresponding threaded holes, when the screw rod rotates, the screw nut integrated with the seed sowing wheels is driven to axially move, so that the two symmetrical spiral bevel gear seed sowing wheels can be adjusted to axially move, and the opening degree of the seed sowing wheels can be adjusted.
The left retaining ring and the right retaining ring are respectively attached to the left end and the right end of the two symmetrical seed metering wheels, the left retaining ring and the right retaining ring are of variable aperture structures, and the left retaining ring and the right retaining ring can be attached to the outer surfaces of the seed metering wheels when the seed metering wheels move axially.
The seed protection plate realizes aperture change through a plurality of springs, and the seed protection plate is tightly attached to the outer surface of the seed sowing wheel when the seed sowing wheel moves axially.
The invention has the beneficial effects that: the invention provides an air-suction type adjustable-pitch spiral bevel gear seed sowing device which structurally comprises a shell, a left retainer ring, a left end cover, a seed sowing shaft, a belt, a seed guiding device, a seed sowing wheel, a right retainer ring, a right end cover, a gas suction pipeline, a lead screw transmission part, a motor, a seed protecting plate, a spring and a seed sowing wheel partition plate, and is simple in structure and clear in working principle, and the seed sowing device adopts a symmetrical spiral bevel gear structure, so that the phenomenon of seed sowing pulsation can be reduced; meanwhile, an air suction structure is adopted, the seed filling performance is improved, the opening degree of the spiral conical tooth grooves can be adjusted through a lead screw distance adjusting mechanism, and the control of the seed discharging amount is realized; by arranging the seed guide device, the even and accurate plant spacing after seed feeding is ensured, and the qualification rate of the plant spacing of the seeds is greatly improved.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
FIG. 2 is a side view of the seed wheel and the seed guide of the present invention.
FIG. 3 is an enlarged view of the spiral groove of the seed wheel of the present invention.
Fig. 4 is a schematic structural view of a right retainer ring according to the present invention.
In the figure: the seed sowing device comprises a shell 1, a left retainer ring 2, a left end cover 3, a seed sowing shaft 4, a belt 5, a seed guiding shaft 6, a seed guiding device 7, a seed sowing wheel 8, a right retainer ring 9, a right end cover 10, an air suction pipeline 11, a screw rod 12, a screw rod transmission part 13, a motor 14, a seed protecting plate 15, a spring 16, an air suction hole 17, an air suction chamber 18, a zero pressure area 19, a threaded hole 20, a seed guiding wheel 21, a seed guiding partition plate 22, a seed guiding pipeline 23, a seed guiding groove 25, a spring seat 26, a spiral groove bottom 27 and an air suction hole 28.
Detailed Description
The invention will be further described with reference to the accompanying drawings in which:
as shown in fig. 1-4, an air-suction type adjustable-pitch spiral bevel gear seed sowing device is composed of a shell 1, a left retainer ring 2, a left end cover 3, a seed sowing shaft 4, a belt 5, a seed guiding device 7, a seed sowing wheel 8, a right retainer ring 9, a right end cover 10, an air suction pipeline 11, a lead screw 12, a lead screw transmission part 13, a motor 14, a seed protecting plate 15, a spring 16 and a seed sowing wheel partition 29 which are connected; the seed sowing wheel 8 is arranged in the shell 1, the seed sowing shaft 4 is connected in a shaft hole of the seed sowing wheel 8, a left end cover 3 is connected on the left end surface of the shell 1, a right end cover 10 is connected on the right end surface of the shell 1, a left retainer ring 2 is arranged between the left end cover 3 and the seed sowing wheel 8, a right retainer ring 9 is arranged between the right end cover 10 and the seed sowing wheel 8, an air suction chamber 18 is of a closed cavity structure, the right end surface of the air suction chamber 18 and the right end surface of the seed sowing wheel 8 are in the same plane, the left end surface of the air suction chamber is fixedly attached to the right end surface of a seed sowing wheel partition 29, the outer surface of the air suction chamber is tightly attached to the hollow inner wall of the seed sowing wheel 8, the seed sowing wheel 8 rotates on the outer surface of the air suction chamber 18, the left end of the air suction pipe 11 is communicated with the air suction chamber 18, the right end of the air suction pipe 11 extends out of the, one end of the spring 16 is fixedly connected to the shell 1 through a spring seat 26, the other end of the spring 16 is fixedly connected to the seed protection plate 15, the lead screw 12 penetrates through the whole seed sowing wheel 8, the right end of the lead screw 12 extends out of the right end cover 10, and the lead screw 12 is in transmission connection with the motor 14 through a lead screw transmission piece 13; the motor 14 is fixedly arranged at the lower end of the right end cover 10, the bottom surface of the air suction chamber 18 and the hollow inner wall of the seed sowing wheel 8 form a zero-pressure area 19, the seed guiding device 7 is connected and arranged at the bottom of the shell 1, the seed guiding device 7 consists of a seed guiding shaft 6, a seed guiding wheel 21, seed guiding partition plates 22 and a seed guiding pipeline 23, a plurality of seed guiding partition plates 22 are equidistantly arranged on the seed guiding wheel 21, a seed guiding groove 25 is formed between every two adjacent seed guiding partition plates 22, the seed guiding shaft 6 penetrates through the seed guiding wheel 21, and the seed guiding shaft 6 is in transmission connection with the seed sowing shaft 4 through a belt 5.
As shown in fig. 1-4, two air-suction type adjustable-pitch spiral bevel-tooth seed sowing devices are provided, wherein the two seed sowing wheels 8, the seed sowing wheel partition 29 and the seed protecting plate 15 are in a bilateral symmetry structure, the seed sowing wheels 8 are in a conical structure, a plurality of air suction holes 28 are arranged on the spiral groove bottom 27 of the seed sowing wheels 8, and the air suction holes 28 lead to the air suction chamber 18; the right end face of the air suction chamber 18 is provided with an air suction hole 17 corresponding to the air suction pipeline 11; the screw rod 12 penetrates through the left and right seed sowing wheels and is matched with the corresponding threaded holes 20, and when the screw rod rotates, the nut 30 integrated with the seed sowing wheels 8 is driven to axially move, so that the two symmetrical spiral bevel gear seed sowing wheels 8 can be adjusted to axially move, and the opening degree of the seed sowing wheels can be adjusted; the left retainer ring 2 and the right retainer ring 9 are respectively attached to the left end and the right end of the two symmetrical seed metering wheels 8, the left retainer ring 2 and the right retainer ring 9 are of variable aperture structures, and the left retainer ring 2 and the right retainer ring 9 can be attached to the outer surfaces of the seed metering wheels 8 when the seed metering wheels 8 axially move; the seed protecting plate 15 realizes the aperture change through a plurality of springs 16, and when the seed sowing wheel 8 moves axially, the seed protecting plate 15 is tightly attached to the outer surface of the seed sowing wheel 8.
As shown in fig. 1-4, the working principle of the air-suction type pitch-adjustable spiral bevel-tooth seed sowing device is as follows: when the seed feeding device works, the seed feeding shaft 4 drives the spiral bevel gear seed feeding wheel 8 to rotate, the external fan sucks air to the air suction chamber 18 through the air suction pipeline 11, negative pressure is formed in the air suction chamber 18, seeds are adsorbed by air holes 28 at the bottom of the seed feeding wheel 8 in a seed filling area to fill the spiral grooves 27, the motor 14 drives the screw rod 12 to rotate through the transmission part 13, and the screw rod 12 drives the seed feeding wheel 8 to axially move to realize opening degree adjustment. Then the seed metering wheel rotates to the zero pressure chamber 19, the seeds enter the seed guiding device 7 due to self weight, then the seeds fall into the seed guiding groove 25, the seed guiding wheel 21 drives the seed guiding wheel belt 5 through the seed metering shaft 4, so as to drive the seed guiding wheel rotating shaft 6 to rotate, further drive the seed guiding wheel 21 to rotate, and the seeds in the seed guiding groove 25 reach the seed throwing position through the seed dropping pipe 23 under the driving of the seed guiding wheel 21.
Claims (6)
1. The utility model provides an air-aspiration formula adjustable pitch spiral awl tooth seed metering ware which characterized in that: the seed sowing device is formed by connecting a shell (1), a left retainer ring (2), a left end cover (3), a seed sowing shaft (4), a belt (5), a seed guiding device (7), a seed sowing wheel (8), a right retainer ring (9), a right end cover (10), an air suction pipeline (11), a lead screw (12), a lead screw transmission part (13), a motor (14), a seed protecting plate (15), a spring (16) and a seed sowing wheel partition plate (29); the seed sowing wheel (8) is arranged inside the shell (1), the seed sowing shaft (4) is connected in a shaft hole of the seed sowing wheel (8), a left end cover (3) is connected on the left end surface of the shell (1), a right end cover (10) is connected on the right end surface of the shell (1), the left check ring (2) is arranged between the left end cover (3) and the seed sowing wheel (8), the right check ring (9) is arranged between the right end cover (10) and the seed sowing wheel (8), the air suction chamber (18) is of a closed cavity structure, the right end surface of the air suction chamber (18) and the right end surface of the seed sowing wheel (8) are in the same plane, the left end surface of the air suction pipe (11) is fixedly attached to the right end surface of the seed sowing wheel partition plate (29), the outer surface of the air suction chamber is tightly attached to the hollow inner wall of the seed sowing wheel (8), the air suction chamber (18) rotates on the outer surface, and the left end of the air suction pipe (11) is communicated with, the right end of the air suction pipeline (11) extends out of a right end cover (10) to be connected with an external negative pressure fan, the inner wall of the seed protection plate (15) is attached to the outer surface of the seed sowing wheel (8), a plurality of springs (16) are arranged between the outer wall of the seed protection plate (15) and the shell (1), one ends of the springs (16) are fixedly connected to the shell (1) through spring seats (26), the other ends of the springs (16) are fixedly connected to the seed protection plate (15), the lead screw (12) penetrates through the whole seed sowing wheel (8), the right end of the lead screw (12) extends out of the right end cover (10), and the lead screw (12) is in transmission connection with a motor (14) through a lead screw transmission part (13); the fixed setting of motor (14) is in the lower extreme of right-hand member lid (10), air suction chamber (18) bottom surface constitutes zero pressure district (19) with seed metering wheel (8) cavity inner wall, seed guide device (7) are connected and are set up in the bottom of casing (1), seed guide device (7) comprise kind of axle (6), kind of wheel (21), kind of baffle (22), kind of pipeline (23) of leading, it is equipped with a plurality of kinds of baffle (22) of leading to lead on the equidistance in seed wheel (21), adjacent two form kind of groove (25) of leading between kind baffle (22), kind of axle (6) pass kind of wheel (21), kind of axle (6) pass belt (5) with seed metering axle (4) transmission is connected.
2. The air-aspiration type pitch-adjustable spiral bevel-tooth seed sowing device as claimed in claim 1, wherein: seed metering wheel (8), seed metering wheel baffle (29), seed protection board (15) all are equipped with two, and for bilateral symmetry structure, and seed metering wheel (8) are the toper structure, are equipped with a plurality of suction holes (28) on the spiral tank bottom (27) of seed metering wheel (8), and suction hole (28) lead to air suction chamber (18).
3. The air-aspiration type pitch-adjustable spiral bevel-tooth seed sowing device as claimed in claim 1, wherein: the right end face of the air suction chamber (18) is provided with an air suction hole (17) corresponding to the air suction pipeline (11).
4. The air-aspiration type pitch-adjustable spiral bevel-tooth seed sowing device as claimed in claim 1, wherein: the screw rod (12) penetrates through the left and right seed sowing wheels and is matched with the corresponding threaded holes (20), and when the screw rod rotates, the screw nut (30) integrated with the seed sowing wheels (8) is driven to axially move, so that the two symmetrical spiral bevel gear seed sowing wheels (8) can be adjusted to axially move, and the opening degree of the seed sowing wheels can be adjusted.
5. The air-aspiration type pitch-adjustable spiral bevel-tooth seed sowing device as claimed in claim 1, wherein: left retaining ring (2), right retaining ring (9) are laminated respectively in two symmetry seed metering wheel (8) left and right ends, and left retaining ring (2) and right retaining ring (9) are variable aperture structure, and along with seed metering wheel (8) axial displacement, left retaining ring (2) and right retaining ring (9) can laminate in the surface of seed metering wheel (8).
6. The air-aspiration type pitch-adjustable spiral bevel-tooth seed sowing device as claimed in claim 1, wherein: the seed protection plate (15) realizes aperture change through a plurality of springs (16), and when the seed sowing wheel (8) moves axially, the seed protection plate (15) is tightly attached to the outer surface of the seed sowing wheel (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010874760.0A CN111972090B (en) | 2020-08-27 | 2020-08-27 | Air-suction type adjustable-pitch spiral bevel-tooth seed sowing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010874760.0A CN111972090B (en) | 2020-08-27 | 2020-08-27 | Air-suction type adjustable-pitch spiral bevel-tooth seed sowing device |
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| Publication Number | Publication Date |
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| CN111972090A true CN111972090A (en) | 2020-11-24 |
| CN111972090B CN111972090B (en) | 2022-04-29 |
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| CN202010874760.0A Active CN111972090B (en) | 2020-08-27 | 2020-08-27 | Air-suction type adjustable-pitch spiral bevel-tooth seed sowing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113424688A (en) * | 2021-07-02 | 2021-09-24 | 山东理工大学 | Double-chamber constant-seed-supply double-grooved-wheel seed discharging device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113424688A (en) * | 2021-07-02 | 2021-09-24 | 山东理工大学 | Double-chamber constant-seed-supply double-grooved-wheel seed discharging device |
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| Publication number | Publication date |
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| CN111972090B (en) | 2022-04-29 |
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