CN109496505B - Precision seed sowing device for wide seedling belt sowing of small seed seeds - Google Patents
Precision seed sowing device for wide seedling belt sowing of small seed seeds Download PDFInfo
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- CN109496505B CN109496505B CN201811345782.7A CN201811345782A CN109496505B CN 109496505 B CN109496505 B CN 109496505B CN 201811345782 A CN201811345782 A CN 201811345782A CN 109496505 B CN109496505 B CN 109496505B
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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 relates to the technical field of agricultural sowing mechanical equipment, in particular to a precision seed sowing device for wide-seedling-zone sowing of small seeds, which comprises a seed cup, a seed sowing wheel and a seed guide pipe, wherein the seed cup comprises a seed feeding cup and a seed discharging cup, the seed feeding cup is communicated with the seed discharging cup, the seed sowing wheel is arranged in the seed cup, the center of the seed sowing wheel is connected with a seed sowing shaft, the seed sowing shaft penetrates out of the seed cup, the seed sowing wheel is of a wheel-shaped structure, the outer surface of the seed sowing wheel comprises three sections which are sequentially connected, the first section and the third section are symmetrically arranged conical surfaces, the second section is parallel to the central axis of the seed sowing wheel, the shape of the inner surface of the seed discharging cup is the same as that of the outer surface of the seed sowing wheel, a certain gap is kept between the seed feeding cup and the seed sowing wheel, and a plurality of spiral combined seed sowing blades are connected to the outer surface of the seed sowing wheel. The wide-row-spacing seedling belt is adopted for seeding, so that the distribution of seeds on a seedbed is effectively improved, the seeding density is increased, a sparse-dense-edge distribution structure in the seeds is realized, and the effect of increasing the yield of crops is remarkable.
Description
Technical Field
The invention relates to the technical field of agricultural sowing mechanical equipment, in particular to a precision seed-metering device for wide-seedling-zone sowing of small seeds.
Background
The average geometric particle size of the small seed seeds is within 3mm, the small seed seeds comprise most of economic crops such as vegetables and rapes and grain crops such as wheat and millet, the particle size of the small seed seeds is small, the mobility is good, and the precision seeding difficulty is high. At present, the traditional planting mode of seedling transplantation or manual seed slipping, thinning and final singling after broadcasting is generally adopted for planting small-grain seeds in China, and the traditional planting mode has the defects of multiple working procedures, high labor intensity and the like. Therefore, more and more attention is paid to mechanized planting.
At present, mechanical seeding of small-kernel crops mostly adopts a drilling operation mode, the drilling operation mode easily causes large crop density of planting rows and small row spacing, causes the problems of light competition, fertilizer robbing, light transmission difficulty and the like, and seriously influences the continuous increase of crop yield.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a precision seed-metering device for wide-seedling-zone seeding of small seeds.
In order to solve the technical problems, the invention provides the following technical scheme:
the precision seed sowing device comprises a seed cup, a seed sowing wheel and a seed guide pipe, wherein the seed cup comprises a seed feeding cup and a seed discharging cup, the seed feeding cup is communicated with the seed discharging cup, the seed sowing wheel is arranged in the seed cup, the center of the seed sowing wheel is connected with a seed sowing shaft, the seed sowing shaft penetrates out of the seed cup, and the seed sowing shaft is connected with external power to drive the seed sowing wheel to rotate.
The seed sowing wheel is of a wheel-shaped structure, the outer surface of the seed sowing wheel comprises three sections which are sequentially connected, the first section and the third section are symmetrically arranged conical surfaces, and the first section and the third section form a V-shaped shape. The second section is arranged between the first section and the third section, the second section is parallel to the central shaft of the seed sowing wheel, and the second section is a cylindrical surface. The shape of the inner surface of the seed discharge cup is the same as that of the outer surface of the seed sowing wheel, the seed discharge cup and the seed sowing wheel are arranged in a matching way, and a certain gap is kept between the seed discharge cup and the seed sowing wheel. The outer surface of the seed wheel is connected with a plurality of seed blades which are arranged spirally, the seed blades are arranged uniformly, and all the seed blades have the same height. The structure of the seed sowing wheel is beneficial to controlling the seed distribution during wide seedling belt sowing, and a distribution structure with dense middle and sparse edges is formed, wherein the middle and sparse distribution of the seeds provides good conditions for tillering of the seeds; the dense distribution of the two sides creates conditions for exerting marginal effect.
The seed guide pipe is connected with the lower part of the seed discharge cup, the cross section of the seed guide pipe is rectangular, and a plurality of seed flow channels are sequentially and uniformly arranged along the inner surface of the seed guide pipe. The two sides of the seed sowing wheel structure are conical, the linear velocity and the seed containing space are increased, the middle part of the seed sowing wheel structure adopts a cylindrical structure, the linear velocity and the seed containing space are reduced, the seed sowing tube with the structure is matched, the problem of seed disordering in the width direction of the seedling belt is effectively prevented, and the stability of dense distribution of the medium, sparse and side is ensured.
The upper part of the seed flow channel is lower than the upper edge of the seed guiding pipe, and the inlet of the seed flow channel is in an arc shape with a high middle part and low two sides, so that the dense seed distribution of the middle sparse edge is further ensured.
The outlet end of the lower part of the seed guiding pipe is bent in an arc shape.
The lower outlet of the seed flow channel is flush with the outlet of the seed discharging pipe, so that the seeds are smoothly discharged.
The seed guide pipe is connected with the seeding cup through a bolt device, and the bolt device comprises a bolt, a spring washer, a flat washer and a nut.
The seeding blades on the first section and the third section of the outer surface of the seeding wheel form an alpha angle with the diameter direction of the seeding wheel, and the alpha angle is smaller than the friction angle of small seeds, so that the fluidity of the seeds can be kept.
The seed feeding cup comprises a front wall and a rear wall, the rear wall of the seed feeding cup and the central line of the seed sowing wheel are on the same straight line, the angle between the front wall of the seed feeding cup and the horizontal plane is more than 60 degrees, and the structure is beneficial for seeds to enter the seed sowing wheel along the optimal angle, so that the seeds can flow smoothly.
The invention has the following beneficial effects:
the method changes the traditional small-row-spacing drill seeding into wide-row-spacing seedling belt seeding, effectively thins the density of the planted row crops, improves the distribution of seeds on a seed bed, increases the seeding density, lays a foundation for ventilation and light transmission and balanced water and fertilizer supply, then realizes a sparse-edge dense distribution structure in the seeds, provides good conditions for tillering the seeds, creates conditions for exerting marginal effect, and has remarkable effect on realizing crop yield increase.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a right side view of FIG. 1;
FIG. 3 is a sectional view taken along line A-A of the seed wheel.
In the figure: 1. a seed feeding cup; 2. a seed sowing wheel; 3. a seed shaft; 4. a bolt; 5. a spring washer; 6. a flat washer; 7. a nut; 8. a seed guiding pipe; 9. a seed discharging cup; 10. a seed flow channel; 11. a rear wall; 12. a front wall; 13. seed sowing blades.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Example (b):
as shown in fig. 1 to 3, a precision seed-metering device for wide-seedling-zone sowing of small-seed seeds comprises a seed cup, a seed-metering wheel 2 and a seed-guiding tube 8.
The seed cup comprises a seed cup 1 and a seed cup 9, the seed cup 1 is communicated with the seed cup 9, and the seed wheel 2 is arranged in the seed cup. The center of the seed sowing wheel 2 is connected with a seed sowing shaft 3, the seed sowing shaft 3 penetrates out of the seed cup, the outer wall of the seed cup supports the seed sowing shaft 3, and the seed sowing shaft 3 is connected with external power.
The seed sowing wheel 2 is of a wheel-shaped structure, the outer surface of the seed sowing wheel 2 comprises three sections which are sequentially connected, the first section and the third section are symmetrically arranged conical surfaces, and the first section and the third section form a V-shaped structure. The second section is arranged between the first section and the third section, the second section is parallel to the central shaft of the seed sowing wheel 2, and the second section is a cylindrical surface. The shape of the inner surface of the seeding cup 9 is the same as the shape of the outer surface of the seed sowing wheel 2, the seeding cup 9 and the seed sowing wheel 2 are arranged in a matching way, a certain gap is kept between the seeding cup 9 and the seed sowing wheel 2, and the gap is 1.5-2 times of the diameter of the seeds. The outer surface of the seeding wheel 2 is connected with a plurality of seeding blades 13, the seeding blades 13 are uniformly arranged, and all the seeding blades 13 have the same height.
The seed guide pipe 8 is connected with the lower part of the seed discharging cup 9 through a bolt device, and the bolt device comprises a bolt 4, a spring washer 5, a flat washer 6 and a nut 7. The section of the seed guiding pipe 8 is rectangular, and the outlet end of the lower part of the seed guiding pipe 8 is curved in an arc shape. A plurality of seed flow channels 10 are arranged in sequence and evenly along the inner surface of the seed guide pipe 8. The upper part of the seed flow channel 10 is lower than the upper edge of the seed guiding pipe 8, and the inlet of the seed flow channel 10 is in an arc shape with a high middle part and low two sides. The lower outlet of the seed flow channel 10 is flush with the outlet of the seed tube 8.
The seeding blades 13 on the first section and the third section of the outer surface of the seeding wheel 2 form an alpha angle with the diameter direction of the conical surface of the seeding wheel 2, the alpha angle is smaller than the friction angle of small seeds, and the seeding blades are arranged in a spiral shape by taking the end face as the spiral shape. The diameter directions of the seeding blades 13 on the second section of the outer surface of the seeding wheel 2 are the same as the diameter directions of the seeding wheel 2.
The seed feeding cup 1 comprises a front wall 12 and a rear wall 11, the rear wall 11 of the seed feeding cup and the central line of the seed sowing wheel 2 are on the same straight line, and the angle between the front wall 12 of the seed feeding cup and the horizontal plane is larger than 60 degrees.
Claims (6)
1. A precision seed sowing device for wide-seedling-zone sowing of small seeds comprises a seed cup, a seed sowing wheel and a seed guide pipe, and is characterized in that the seed cup comprises a seed feeding cup and a seed discharging cup, the seed feeding cup is communicated with the seed discharging cup, the seed sowing wheel is arranged in the seed cup, the center of the seed sowing wheel is connected with a seed sowing shaft, the seed sowing shaft penetrates out of the seed cup, the seed sowing wheel is of a wheel-shaped structure, the outer surface of the seed sowing wheel comprises three sections which are sequentially connected, the first section and the third section are symmetrically arranged conical surfaces, the first section and the third section form a V-shaped shape, the second section is parallel to the central shaft of the seed sowing wheel, the second section is a cylindrical surface, the inner surface of the seed discharging cup is the same as the outer surface of the seed sowing wheel in shape, the two sections are arranged in a matching manner, a certain gap is kept between the seed feeding cup and the seed sowing wheel, the outer surface of the seed sowing wheel is connected with a plurality of seed sowing blades, and the seed sowing blades are uniformly arranged; the seed guide pipe is connected with the lower part of the seed discharge cup, the cross section of the seed guide pipe is rectangular, and a plurality of seed flow channels are sequentially and uniformly arranged along the inner surface of the seed guide pipe; the upper part of the seed flow channel is lower than the upper edge of the seed guiding pipe, and the inlet of the seed flow channel is in an arc shape with a high middle part and low two sides.
2. The precision seed-metering device for broad-band sowing of small-kernel seeds according to claim 1, wherein the lower outlet end of the seed guiding tube is curved in an arc shape.
3. The precision seed-metering device for broad-band sowing of small-kernel seeds according to claim 1, wherein the lower outlet of the seed flow channel is flush with the outlet of the seed tube.
4. The precision seed-metering device for broad-band sowing of small-kernel seeds as claimed in claim 1, wherein the seed guiding tube is connected with the seed sowing cup through a bolt device.
5. The precision seed-metering device for wide-belt seeding of small-seed seeds as claimed in claim 1, wherein the seeding blades on the first section and the third section of the outer surface of the seeding wheel form an angle α with the diameter direction of the seeding wheel, and the angle α is smaller than the friction angle of the small-seed seeds.
6. The precision seed-metering device for broad-band sowing of small-kernel seeds according to claim 1, wherein the seed-feeding cup comprises a front wall and a rear wall, the rear wall of the seed-feeding cup is collinear with the central line of the seed-metering wheel, and the angle between the front wall of the seed-feeding cup and the horizontal plane is greater than 60 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811345782.7A CN109496505B (en) | 2018-11-13 | 2018-11-13 | Precision seed sowing device for wide seedling belt sowing of small seed seeds |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811345782.7A CN109496505B (en) | 2018-11-13 | 2018-11-13 | Precision seed sowing device for wide seedling belt sowing of small seed seeds |
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| CN109496505A CN109496505A (en) | 2019-03-22 |
| CN109496505B true CN109496505B (en) | 2022-04-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811345782.7A Active CN109496505B (en) | 2018-11-13 | 2018-11-13 | Precision seed sowing device for wide seedling belt sowing of small seed seeds |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110771328B (en) * | 2019-11-04 | 2021-02-02 | 中国农业大学 | Pneumatic centralized-discharging type granular fertilizer variable distribution device |
| CN111788911A (en) * | 2020-08-27 | 2020-10-20 | 扬州大学 | Spiral conical tooth seed metering device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2258690Y (en) * | 1996-10-03 | 1997-08-06 | 刘少林 | Feed capable of sowing large, middle and small size seed for sower |
| CN200987279Y (en) * | 2006-12-23 | 2007-12-12 | 山西农业大学 | Multi-head deformed screw groove small-seed precision small amount seeding dropping mechanism |
| CN101411261B (en) * | 2008-10-27 | 2012-04-25 | 山西农业大学 | Circular groove type dither seed metering device |
| US9332076B2 (en) * | 2014-09-24 | 2016-05-03 | Xerox Corporation | Method and apparatus for setting a language of a remote device |
| CN104472076B (en) * | 2014-12-18 | 2019-06-11 | 山东理工大学 | A kind of wheat rice bunch planting dual-purpose type seeding apparatus |
| CN205040224U (en) * | 2015-01-30 | 2016-02-24 | 刘继泽 | Seed damage prevention type precise seed -metering device |
| CN204810928U (en) * | 2015-07-03 | 2015-12-02 | 河北省农业机械化研究所有限公司 | Little seed grain cereal precision drilling seed metering ware |
| CN105409405B (en) * | 2015-12-16 | 2017-05-10 | 山东农业大学 | Wheat wide-seed-strip planting uniform seeder |
| CN105612878B (en) * | 2015-12-24 | 2017-11-10 | 山东农业大学 | Wide seedling width evenly seeding apptses |
| CN205755455U (en) * | 2016-05-20 | 2016-12-07 | 华南农业大学 | A kind of Oryza sativa L. spiral feed mechanism for seed |
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