CN104350847A - Seed sowing device - Google Patents
Seed sowing device Download PDFInfo
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- CN104350847A CN104350847A CN201410666877.4A CN201410666877A CN104350847A CN 104350847 A CN104350847 A CN 104350847A CN 201410666877 A CN201410666877 A CN 201410666877A CN 104350847 A CN104350847 A CN 104350847A
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- seed
- box
- hole
- seed sowing
- taper sheath
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Abstract
The invention discloses a seed sowing device, and relates to the technical field of agricultural machinery. The seed sowing device comprises a seed box, a seed sowing disc, a seed scraper and a rotary shaft which is connected with the seed sowing disc, wherein the seed sowing disc and the seed scraper are arranged in the seed box, the rotary shaft extends out from the bottom of the seed box; a plurality of seed containing holes are uniformly formed in the seed sowing disc; a seed sowing hole is formed in the box bottom of the seed box; the seed sowing disc is provided with a tapered sleeve having a small upper part and a big lower part; the upper end of the tapered sleeve is sealed; an outer edge at the lower end of the tapered sleeve extends outwards in an axial direction so as to form a circular ring body; the bottom surface of the circular ring body props against the inner bottom surface of the seed box; the top end of the rotary shaft is connected with the upper end of the tapered sleeve; a plurality of support bars are connected between the rotary shaft and the inner wall of the tapered sleeve; a plurality of seed containing holes are formed in the circular ring body; and each seed containing hole is a tapered hole having a big upper part and a small lower part. Compared with the prior art, according to the seed sowing device disclosed by the invention, the rotary frictional force between the seed sowing disc and the seed box is sharply reduced, so that the energy consumption can be reduced; and the seed filling capacity of each seed containing hole is high, so that miss seeding is avoided.
Description
Technical field
The present invention relates to agricultural machinery technological field, especially a kind of seeding unit for sower.
Background technology
Seeding unit is one of vitals of sower, and its effect is that the seed in sower seed-box is dredged uniformly seed flow or single seed, to control seeding quantity, realizes evenly sowing.Seeding unit of a great variety, be mainly divided into strip sowing seed discharge device and hill-drop feed run, centrifugal disc seeding unit is a kind of common hill-drop feed run, and its structure is simple, is suitable for low speed sowing.Existing centrifugal disc seeding unit comprises seed-box, the seed plate be installed in seed-box, the rotating shaft connecting seed plate and the seed scraping device that is installed in seed-box, seed plate is plane disc, plane disc offers multiple columniform appearance kind of hole, a feed outlet is offered at the bottom of seed-box case, there is following deficiency in the seeding unit of this structure: 1, the bottom surface of the seed plate of flat circle disc type all contacts with seed-box inner bottom surface in rotary course, frictional force is large, consumes energy high; 2, seed flows into by conducting oneself with dignity and holds in kind of hole, columniform hold kind of hole fill kind of a poor-performing, easily cause broadcast leakage.
Summary of the invention
The object of this invention is to provide a kind of centrifugal disc seeding unit, this seeding unit can solve the problem of the large and easy broadcast leakage of existing level disc type seeder pivoting friction.
In order to solve the problem, the technical solution used in the present invention is: this seeding unit comprises seed-box, be arranged on the seed plate in seed-box and seed scraping device, and connect the rotating shaft of described seed plate, described rotating shaft is stretched out bottom seed-box, described seed plate circumferentially evenly offers multiple appearance kind of hole same, a feed outlet is offered at the bottom of the case of described seed-box, the center of described feed outlet is identical to the distance of described shaft axis with the center in described appearance kind hole, described seed plate has a up-small and down-big taper sheath, the upper end closed of described taper sheath, the outer rim place, lower end of described taper sheath extends radially outwardly formation torus, the inner bottom surface of described toric bottom surface and described seed-box is inconsistent, the top of described rotating shaft is connected with the upper end of described taper sheath, many support bars are connected with between the inwall of described rotating shaft and described taper sheath, described multiple appearance kind of hole is opened on described torus, and described appearance kind of a hole is up big and down small bellmouth.
In the technical scheme of above-mentioned seeding unit, technical scheme can also be more specifically: the aperture of described feed outlet is greater than an aperture for described appearance kind of hole small end.
Further, described seed scraping device is the cylindrical brush coaxial with described feed outlet, and the external diameter of described cylindrical brush is greater than the described large stomidium footpath holding kind of hole.
Owing to have employed technique scheme, the present invention compared with prior art has following beneficial effect:
1, seed plate only has the torus being arranged on taper sheath lower end to contact with seed-box inner bottom surface, significantly can reduce the frictional force of rotating between seed plate and seed-box like this, is conducive to reducing power consumption;
2, the structure of Rong Zhongkong is conducive to raising and fills kind of a property, thus avoids broadcast leakage.
3, seed scraping device is arranged to cylindrical brush, effectively can strike off the unnecessary seed entering feed outlet, and hairbrush is soft, can not scratch seed.
Accompanying drawing explanation
Fig. 1 is this seeding unit figure.
Embodiment
Below in conjunction with accompanying drawing embodiment, the invention will be further described:
Seeding unit shown in Fig. 1 mainly comprises seed-box 1, seed plate 2, bearing 3, rotating shaft 4 and seed scraping device 5, seed plate 2 is arranged in seed-box 1, seed plate 2 has a up-small and down-big taper sheath 2-1, the upper end closed of taper sheath 2-1, the outer rim place, lower end of taper sheath 2-1 extends radially outwardly and forms torus 2-2, the bottom surface of torus 2-2 and the inner bottom surface of seed-box 1 inconsistent, the central authorities of the upper end of taper sheath 2-1 are connected with rotating shaft 4, the other end of rotating shaft 4 stretches out bottom seed-box 1, the outer bottom of seed-box 1 is provided with bearing block, two cover bearings 3 are installed in bearing block, rotating shaft 4 is arranged on bearing block by bearing 3, preferably, many support bars 6 are connected with between rotating shaft 4 and the inwall of taper sheath 2-1, the torus 2-2 of seed plate 2 circumferentially evenly offers multiple appearance kind of hole 2-3 in same, holding kind of a hole 2-3 is up big and down small bellmouth, a feed outlet 1-1 is offered at the bottom of the case of seed-box 1, the center of feed outlet 1-1 is identical to the distance of rotating shaft 4 axis with the center holding kind of hole 2-3, and the aperture of feed outlet 1-1 is greater than and holds kind of an aperture for hole 2-3 small end, seed scraping device 5 is arranged in seed-box 1, and seed scraping device 5 is the cylindrical brush coaxial with feed outlet 1-1, and the external diameter of this cylindrical brush is greater than the large stomidium footpath holding kind of hole 2-3, and the bottom of hairbrush contacts with the upper surface of torus 2-2.
Claims (3)
1. a seeding unit, comprise seed-box, be arranged on the seed plate in seed-box and seed scraping device, and connect the rotating shaft of described seed plate, described rotating shaft is stretched out bottom seed-box, described seed plate circumferentially evenly offers multiple appearance kind of hole same, a feed outlet is offered at the bottom of the case of described seed-box, the center of described feed outlet is identical to the distance of described shaft axis with the center in described appearance kind hole, it is characterized in that: described seed plate has a up-small and down-big taper sheath, the upper end closed of described taper sheath, the outer rim place, lower end of described taper sheath extends radially outwardly formation torus, the inner bottom surface of described toric bottom surface and described seed-box is inconsistent, the top of described rotating shaft is connected with the upper end of described taper sheath, many support bars are connected with between the inwall of described rotating shaft and described taper sheath, described multiple appearance kind of hole is opened on described torus, and described appearance kind of a hole is up big and down small bellmouth.
2. seeding unit according to claim 1, is characterized in that: the aperture of described feed outlet is greater than an aperture for described appearance kind of hole small end.
3. seeding unit according to claim 1 and 2, is characterized in that: described seed scraping device is the cylindrical brush coaxial with described feed outlet, and the external diameter of described cylindrical brush is greater than the described large stomidium footpath holding kind of hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410666877.4A CN104350847A (en) | 2014-11-20 | 2014-11-20 | Seed sowing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410666877.4A CN104350847A (en) | 2014-11-20 | 2014-11-20 | Seed sowing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104350847A true CN104350847A (en) | 2015-02-18 |
Family
ID=52518245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410666877.4A Pending CN104350847A (en) | 2014-11-20 | 2014-11-20 | Seed sowing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104350847A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104756652A (en) * | 2015-04-20 | 2015-07-08 | 中国农业大学 | Non-circular seed single-grain precision seed-metering device |
| CN105537151A (en) * | 2015-12-31 | 2016-05-04 | 中国农业大学 | Automatic seed separation device and seed activity nondestructive testing system |
| CN115316082A (en) * | 2022-07-08 | 2022-11-11 | 河南省农业科学院长垣分院 | Portable peanut district breeding seeder |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2292377Y (en) * | 1997-05-20 | 1998-09-30 | 刘西厚 | Conic double-row cell seedplate |
| CN2411657Y (en) * | 2000-03-03 | 2000-12-27 | 徐传哲 | Seed sowing device |
| US20030084830A1 (en) * | 2001-11-08 | 2003-05-08 | Rural Development Administration | Garlic upright-positioning and planting device |
| CN2935758Y (en) * | 2006-06-21 | 2007-08-22 | 农业部南京农业机械化研究所 | Horizontal round disc type precision sowing and seed dropping device |
| CN203435338U (en) * | 2013-07-02 | 2014-02-19 | 重庆晴点农业开发有限公司 | Seed metering device of seeding machine |
-
2014
- 2014-11-20 CN CN201410666877.4A patent/CN104350847A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2292377Y (en) * | 1997-05-20 | 1998-09-30 | 刘西厚 | Conic double-row cell seedplate |
| CN2411657Y (en) * | 2000-03-03 | 2000-12-27 | 徐传哲 | Seed sowing device |
| US20030084830A1 (en) * | 2001-11-08 | 2003-05-08 | Rural Development Administration | Garlic upright-positioning and planting device |
| CN2935758Y (en) * | 2006-06-21 | 2007-08-22 | 农业部南京农业机械化研究所 | Horizontal round disc type precision sowing and seed dropping device |
| CN203435338U (en) * | 2013-07-02 | 2014-02-19 | 重庆晴点农业开发有限公司 | Seed metering device of seeding machine |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104756652A (en) * | 2015-04-20 | 2015-07-08 | 中国农业大学 | Non-circular seed single-grain precision seed-metering device |
| CN104756652B (en) * | 2015-04-20 | 2016-09-07 | 中国农业大学 | A kind of not rounded seed single-grain precision seeding apparatus |
| CN105537151A (en) * | 2015-12-31 | 2016-05-04 | 中国农业大学 | Automatic seed separation device and seed activity nondestructive testing system |
| CN115316082A (en) * | 2022-07-08 | 2022-11-11 | 河南省农业科学院长垣分院 | Portable peanut district breeding seeder |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150218 |