CN108391488B - Rice precision hill-drop centralized row type roller - Google Patents
Rice precision hill-drop centralized row type roller Download PDFInfo
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- CN108391488B CN108391488B CN201810428901.9A CN201810428901A CN108391488B CN 108391488 B CN108391488 B CN 108391488B CN 201810428901 A CN201810428901 A CN 201810428901A CN 108391488 B CN108391488 B CN 108391488B
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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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- 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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Abstract
The invention discloses a rice precision hole sowing concentrated seeding type roller, which comprises a roller wall, seeding type holes, a seeding shaft fixing seat and support ribs, wherein the seeding shaft fixing seat is positioned at the center of the roller wall, and 6 rows of type hole belts are uniformly distributed on the roller wall and correspond to 6 rows of seeding; each row of the hole belts is evenly distributed with 10 seeding holes. The roller wall is connected with the seed shaft fixing seat through two ends of 2 supporting ribs; the seed shaft fixing seat is provided with a hexagonal shaft mounting hole in a regular hexagon. The seed-metering holes of the rice precision hole-sowing concentrated-discharging type roller adopt a conical-column-shaped shallow hole structure, so that the seed filling and seed throwing are facilitated; the seed-metering holes are formed by combining positive pressure airflow and conical shallow holes, so that the seed-metering performance is effectively improved, and the seed damage is reduced; the synchronous precision hole-forming seed discharging of 6 rows of rice is realized, the seed discharging precision and the working efficiency are greatly improved, the seeds are saved, and the planting benefit of the rice is improved.
Description
Technical Field
The invention relates to the technical field of crop sowing equipment, in particular to a rice precision hole sowing row-type roller for rice precision sowing.
Background
The sowing is the first link of agricultural production, and the quality of the sowing condition not only has great influence on the growth of crops, but also directly determines the total yield of the crops, thereby realizing that the precision sowing technology has great promotion effect on the agricultural development of China. With the development of agricultural machinery technology in China and the subsidy policy of the state for farmers to buy agricultural machinery, more and more farmers change from manual planting to mechanical seeding, and the seeding quality of a seeding apparatus is directly determined by a seeding device of a seeding machine. Precision sowing technology is very important in all countries in the world, developed countries basically realize precision sowing of large and medium-sized crops, cost saving effect is very obvious, precision sowing technology for large and medium-sized crops is relatively mature in China at present, but technology of small-sized seeds similar to rape and the like and seeds with special shapes such as rice and the like is still to be improved.
The rice is one of the main grain crops in China, and the planting area of the rice in China is 3200 more than ten thousand hm214 percent of the total cultivated land area in China accounts for 20 percent of the rice planting area in the world. The total output is 34 percent of the world, the world is the first, and China is facing to the secondary transmission of agricultureDuring the historical period of the transition from traditional agriculture to modern agriculture, mechanization of rice planting is an important component. At present, rice seed metering devices in China are mostly converted from corn seed metering devices, soybean seed metering devices and the like, the rice precise hole seeding technology cannot be well realized, and the problems of complex structure, inaccurate seed metering amount, seed waste and the like mainly exist.
Disclosure of Invention
The invention aims to overcome the defects of the technology and provides a rice precision hole sowing row-type roller for rice precision hole sowing, which is a core component for realizing rice precision hole sowing.
In order to achieve the purpose, the rice precision hole-sowing concentrated-discharging type roller comprises a roller wall, a seed-discharging type hole, a seed-discharging shaft fixing seat and support ribs, wherein the seed-discharging shaft fixing seat is positioned at the center of the roller wall, and the roller wall is connected with the seed-discharging shaft fixing seat through two ends of 2 support ribs; the seed shaft fixing seat is provided with a hexagonal shaft mounting hole in a regular hexagon.
Furthermore, the rice precision hole sowing row-collecting type roller designed by the invention is synchronous with field sowing, the speed of a tractor in working is 4.1 ~ 4.3.3 km/h, 1.15m/s is taken, the distance of the tractor in 1 minute driving is 60 s multiplied by 1.15m/s =69 m, the distance between the holes is about 15 cm., the number of the holes needing to be sown in 1 minute driving of the tractor is 6900 cm multiplied by 15cm =460 (holes), the diameter of a land wheel is usually 0.5 m, the circumference is about 0.5 m multiplied by 3.14=1.57 m, the number of the turns needing to be sown in 1 minute by the rice precision hole sowing row-collecting type roller is 69 m multiplied by 1.57 m =43.95 (turns), the number of the holes distributed in the circumferential direction of the rice precision hole sowing row-collecting type roller is 460 multiplied by 43.95=10.46 (10) after the circle is completed, therefore, 6 rows of hole rows are uniformly distributed on the wall, and the corresponding to 6 rows of the sowing holes are uniformly distributed on each row of the roller.
Furthermore, the seed-metering holes comprise a front edge, a bottom surface, a small pressure hole, a rear edge, a bottom circle and a top circle, the seed-metering holes are uniformly distributed on the cylinder wall, and the angle of the front edge of the seed-metering holes isαSaid α is 20 °; the angle of the rear edge of the seed discharging type hole isβWhat is, what isThe above-mentionedβIs 60 degrees.
Furthermore, the bottom surface of the seed-metering hole is a plane, and the shape of the bottom surface is circular. Due to the maximum length and size of rice seedsl max9.53mm, so: d is ≧ Dl max+1/2l max ) =14.295mm ≈ 15mm, the diameter of the tip circle being 15 mm; the diameter of the base circle is 14.4 mm. The average width of the seeds is 3.04, the height of the shaped hole is 1/3 taking the height of the seeds and is about 1mm, and then the distance between the bottom surface and the cylinder wall is 1 mm.
Furthermore, 3 small pressure holes are distributed on the bottom surface, the 3 small pressure holes directly form an equilateral triangle arrangement, and the small pressure holes are airflow channels and used for pressing rice seeds onto the small pressure holes to realize hole-forming seed sowing; the front edge, the rear edge, the bottom circle and the top circle form inclined conical and cylindrical shallow holes, and the seed filling and throwing are facilitated.
Furthermore, the supporting rib round cake joint, the supporting rod and the supporting seat are positioned at two ends of the supporting rod, and the round cake joint is connected with the inner wall of the cylinder wall; the supporting seat is connected with the outer wall of the seed shaft fixing seat.
Compared with the prior art, the invention has the following advantages:
(1) the seed-metering holes of the rice precision hole-sowing concentrated-row type roller adopt a conical-column-shaped shallow hole structure, and the seed-metering holes at the inclined front edge are beneficial to the entry of rice seeds, so that the seed filling performance is improved; the inclined rear edge of the seed-metering hole is beneficial to throwing out rice seeds and filling and throwing seeds.
(2) The seed-metering holes of the rice precision hole-sowing concentrated-row type roller are combined by adopting positive pressure airflow and conical shallow holes, so that the seed-metering performance is effectively improved, and the seed damage is reduced; one rice seed is pressed by the small pressure hole of the conical-column-shaped shallow hole, so that one seed discharging type hole can accommodate 3 rice seeds, and rice hole forming precision seed discharging is realized; and can be suitable for the seeding of different rice seeds.
(3) The rice precision hole sowing concentrated row type roller has the advantages of compact and simple structure, small appearance, modular design of the whole roller, simple structure, convenience in adjustment, installation and disassembly and reliability in operation.
(4) The rice precision hole sowing centralized-discharging type roller realizes the 6-row synchronous precision hole forming seed discharging of rice, greatly improves the seed discharging precision and the working efficiency, saves seeds and improves the planting benefit of rice.
Drawings
FIG. 1 is a schematic view of the overall structure of a rice precision bunch planting concentrated row type roller of the present invention;
FIG. 2 is a cross-sectional view of a rice precision bunch planting gather row type roller of the present invention;
FIG. 3 is a left side view of a rice precision bunch planting gather row type roller;
FIG. 4 is a schematic view of a seed discharge type hole of the present invention;
FIG. 5 is a view showing the structure of a seed discharge type hole of the present invention.
Detailed Description
The invention is described in further detail below with reference to the figures and the embodiments.
The rice precision hole sowing concentrated row type roller comprises a roller wall 1, seed sowing type holes 2, a seed sowing shaft fixing seat 3 and support ribs 4, wherein 6 rows of hole belts are uniformly distributed on the roller wall 1 and correspond to 6 rows of seed sowing. Each row of the hole belts are evenly distributed with 10 seeding holes 2. The seed shaft fixing seat 3 is positioned at the center of the roller wall 1, and the roller wall 1 is connected with the seed shaft fixing seat 3 through two ends of 2 support ribs 4. The seed shaft fixing seat 3 is designed with a hexagonal shaft mounting hole 5 with a regular hexagon.
The cylinder wall 1 is a main body of the rice precision hole sowing concentrated row type roller, the cylinder wall 1 is a part for bearing the seed sowing type holes 2, and the thickness of the cylinder wall 1 is 4 mm.
The seed discharging holes 2 are uniformly distributed on the cylinder wall 1, the bottom of each seed discharging hole 2 consists of a bottom circle 25, and the outline of each seed discharging hole 2 distributed on the cylinder wall 1 is a top circle 26; the angle of the front edge 21 of the seed-metering type hole 2 isαSaidαAt 20 deg., the use of the inclined front edge 21 helps to disturb the seeds to complete the seed filling; the angle of the rear edge 24 of the seed-metering hole 2 isβSaidβThe angle is 60 degrees, and the inclined rear edge 24 is favorable for seed throwing; the bottom surface 22 of the seed-metering hole 2 is a plane, the bottom surface 22 is circular, the diameter of the bottom circle 25 is 14.4mm, the diameter of the top circle 26 is 15mm, and the distance between the bottom surface 22 and the cylinder wall 1 is 1 mm. Therefore, the front edge 21, the rear edge 24, the bottom circle 25 and the top circle 26 form inclined conical-cylindrical shallow holes, which is beneficial to seed filling and seed throwing.
The bottom surface 22 is distributed with 3 pressure holes 23, the 3 pressure holes 23 directly form an equilateral triangle arrangement, and the pressure holes 23 are airflow channels for attaching rice seeds to the pressure holes 23.
The supporting ribs 4 comprise a round cake joint 41, a supporting rod 42 and a supporting seat 43, wherein the round cake joint 41 and the supporting seat 43 are positioned at two ends of the supporting rod 42, and the round cake joint 41 is connected with the inner wall of the cylinder wall 1; the supporting seat 43 is connected with the outer wall of the seeding shaft fixing seat 3.
The rice precision hole sowing centralized-discharging type roller rotates under the action of the seed sowing shaft fixing seat 3, the seeds are disturbed under the action of the inclined front edge 21 of the seed sowing type holes 2, the rice seeds are pressed and attached to the pressure small holes 23 under the action of positive pressure air flow, each pressure small hole 23 is correspondingly pressed and attached with one rice seed, 3 rice seeds are pressed and attached to the 3 pressure small holes 23 in the seed sowing type holes 2, and 3 rice seeds are accommodated in 1 seed sowing type hole 2; the seed-metering holes 2 on the inclined front edge 21 are beneficial to the entry of rice seeds and improve the seed filling performance. Then, the rice seeds are carried under the action of positive pressure air flow pressure, the seeds are carried to a seed throwing area under the rotation action of the rice precision hole sowing centralized row type roller, the inclined rear edge of the seed sowing type hole 2 in the area is favorable for throwing the rice seeds, and precision hole sowing of 3 rice seeds is realized.
The rice precision hole sowing concentrated row type roller is provided with 6 rows of hole belts which correspond to 6 rows of sowing in the field, so that 6 rows of sowing in the rice precision hole sowing concentrated row type roller are realized; each row of the hole belts contains 10 seed-metering holes 2 corresponding to the distance between the holes of each row.
The working principle of the invention is as follows: as shown in figure 1, the invention mainly comprises a roller wall 1 and a seeding type hole 2 on the roller wall, wherein under the action of an external seeding driving force, the roller wall 1 rotates under the action of a seeding shaft fixing seat 3 and a supporting rib 4; the rice seeds are positioned in the seed filling area, the seeds disturb the rice seeds under the action of the inclined front edge 21 of the seed discharging type hole 2, positive pressure air flow is provided by an external air pump, the rice seeds are pressed and attached to the small pressure holes 23 under the action of the positive pressure air flow, each small pressure hole 23 is correspondingly pressed and attached with one rice seed, 3 rice seeds are pressed and attached to 3 small pressure holes 23 in the seed discharging type hole 2, and 3 rice seeds are accommodated in 1 seed discharging type hole 2; the rice seeds are carried under the action of positive pressure airflow pressure, the seeds are carried to a seed throwing area under the rotation action of the rice precision hole sowing centralized row type roller, the inclined rear edge of the seed sowing type hole 2 in the area is favorable for throwing the rice seeds, and precision hole sowing of 3 rice seeds is realized. The rice precision hole sowing concentrated row type roller is provided with 6 rows of hole belts, each row of hole belt is provided with 10 seed sowing type holes 2, so that 6 rows of sowing can be realized, and the hole distance corresponding to the seed sowing type holes 2 can be realized by adjusting the rotating speed of the rice precision hole sowing concentrated row type roller. The working process of the rice precision hole sowing concentrated row type roller is as follows: the method comprises the steps of determining the rotation speed of a rice precision hole sowing concentrated row type roller, providing positive pressure airflow by an air pump, externally driving the rice precision hole sowing concentrated row type roller to rotate, disturbing seeds by a seed sowing type hole 2, pressing and attaching rice seeds, carrying seeds, throwing seeds, circularly sowing, and finishing 6-row rice seed hole sowing.
The invention has the following specific implementation effects: the rice seed sowing device solves the problems that most of rice seed sowing devices in China are converted from corn seed sowing devices, soybean seed sowing devices and the like, the rice precise hole sowing technology cannot be well realized, the structure is complex, the seed sowing quantity is not accurate, seeds are wasted and the like. The invention adopts a centralized row type roller mode to realize that one seed sowing roller can sow 6 rows of precise hole sowing rice, thereby effectively improving the working efficiency and the seed sowing precision.
The above embodiments are only for illustrating the technical solutions of the present invention and are not limited, and modifications or equivalent substitutions of the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention should be covered in the claims of the present invention.
Claims (2)
1. A rice precision hole sowing concentrated seeding type roller comprises a roller wall (1), seeding type holes (2), a seeding shaft fixing seat (3) and support ribs (4), and is characterized in that row type hole belts are uniformly distributed on the roller wall (1) and correspond to 6 rows of seeding; each row of hole belts are uniformly distributed with 10 seed-metering holes (2); the seed shaft fixing seat (3) is positioned in the center of the roller wall (1), and the roller wall (1) is connected with the seed shaft fixing seat (3) through two ends of 2 support ribs (4); the seed shaft fixing seat (3) is provided with a regular hexagonal shaft mounting hole (5), the seed type holes (2) comprise a front edge (21), a bottom surface (22), small pressure holes (23), a rear edge (24), a bottom circle (25) and a top circle (26), the seed type holes (2) are uniformly distributed on the cylinder wall (1), and the front edge (21) of the seed type holes (2) has an angle ofαSaidαIs 20 degrees; the angle of the back edge (24) of the seed-metering hole (2) isβSaidβIs 60 degrees; the bottom surface (22) of the seed-metering hole (2) is a plane, the bottom surface (22) is circular, the diameter of the bottom circle (25) is 14.4mm, the diameter of the top circle (26) is 15mm, and the distance between the bottom surface (22) and the cylinder wall (1) is 1 mm; 3 small pressure holes (23) are distributed on the bottom surface (22), the 3 small pressure holes (23) are arranged in an equilateral triangle, and the small pressure holes (23) are airflow channels and are used for pressing rice seeds onto the small pressure holes (23) to realize hole-forming seed sowing; the front edge (21), the rear edge (24), the bottom circle (25) and the top circle (26) form inclined conical-cylindrical shallow holes, so that seed filling and seed throwing are facilitated;
the rice precision hole sowing centralized-discharging type roller rotates under the action of a seed sowing shaft fixing seat (3), seeds are disturbed under the action of an inclined front edge (21) of a seed sowing type hole (2), the rice seeds are attached to a pressure small hole (23) under the action of positive pressure airflow, the rice seeds are carried under the action of positive pressure airflow, the seeds are carried to a seed throwing area under the rotating action of the rice precision hole sowing centralized-discharging type roller, and the inclined rear edge (24) of the region seed sowing type hole (2) is favorable for throwing the rice seeds, so that the precision hole sowing of the rice seeds is realized.
2. The intensive row type rice precision hill-drop roller as claimed in claim 1, wherein the supporting ribs (4) comprise a cake joint (41), a supporting rod (42) and a supporting seat (43), the cake joint (41) and the supporting seat (43) are positioned at two ends of the supporting rod (42), and the cake joint (41) is connected with the inner wall of the roller wall (1); the supporting seat (43) is connected with the outer wall of the seeding shaft fixing seat (3).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810428901.9A CN108391488B (en) | 2018-05-08 | 2018-05-08 | Rice precision hill-drop centralized row type roller |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810428901.9A CN108391488B (en) | 2018-05-08 | 2018-05-08 | Rice precision hill-drop centralized row type roller |
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| CN108391488B true CN108391488B (en) | 2020-01-21 |
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| CN111819958B (en) * | 2020-07-30 | 2022-05-31 | 石河子大学 | Driving-guiding self-cleaning air-suction type precision seed sowing device |
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| US8281724B2 (en) * | 2009-06-09 | 2012-10-09 | Deere & Company | Volumetric metering system with sectional shut-off |
| CN102511226B (en) * | 2011-12-28 | 2013-05-29 | 华中农业大学 | Pneumatic direct seeding precision sowing device for rice bud seeds |
| CN103004338A (en) * | 2012-12-13 | 2013-04-03 | 中国农业大学 | Air power collecting and discharging type precision seed sowing device |
| CN105103724A (en) * | 2015-09-09 | 2015-12-02 | 浙江理工大学 | Pneumatic roller type precision seed sowing device for heteromorphic seeds |
| CN105746053A (en) * | 2016-04-07 | 2016-07-13 | 湖北永祥农机装备有限公司 | Centralized seed sowing device of seeder |
| CN206790941U (en) * | 2017-05-18 | 2017-12-26 | 中国水稻研究所 | A kind of aspirated-air type rice seedling planter |
| CN208242191U (en) * | 2018-05-08 | 2018-12-18 | 四川农业大学 | Rice precise hole sowing integrated arranging roller |
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