CN203723037U - Mechanical pneumatic combined type corn precision seed metering device - Google Patents
Mechanical pneumatic combined type corn precision seed metering device Download PDFInfo
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- CN203723037U CN203723037U CN201420108808.7U CN201420108808U CN203723037U CN 203723037 U CN203723037 U CN 203723037U CN 201420108808 U CN201420108808 U CN 201420108808U CN 203723037 U CN203723037 U CN 203723037U
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Abstract
The utility model relates to a mechanical pneumatic combined type corn precision seed metering device, and belongs to the technical field of agricultural machinery and the field of dust removing. The corn precision seed metering device mainly comprises a seed discharge plate, a seed inlet, a seed cleaning brush, an air inlet, a housing, a seed protecting plate, a transmission shaft, a seed throwing box; when the corn precision seed metering device is in operation, seeds entering the seed inlet are arranged in a below semicircular conic hole under the trinary action of self weight, centrifugal force and gas pressure; an inclined plane of the cone facilitates seed gliding, and enables the seeds to be in contact with a gas hole at the vertex of the cone; the seeds in the hole enter the seed cleaning area along the seed discharge plate, slip along the wall, and drop back in a seed filling area; at the bottom of the hole, a seed which occupies a large proportion of area of the gas hole is compressed into an indent under the action of pressure difference; in the seed throwing area, the indent becomes an open semi-cone; the seed drops; seed charging is fulfilled. The corn precision seed metering device is not strict in overall sizes of seeds, good in adaptability, low in seed damaging rate, and good in seed dividing property; meanwhile, the working relative pressure of the mechanical pneumatic combined type corn precision seed metering device is greatly lower than that of conventional various pneumatic seed metering devices.
Description
Technical field
The utility model belongs to agricultural machinery technological field, the present invention relates to the reserve seed for planting mechanical strength combined type maize precision seeder of principle of a kind of simple grain for the design feature in conjunction with mechanical internal feed type seeder and air-sweeping type seeding unit.
Background technology
Precision seeder is divided into mechanical type and the large class of pneumatic type two by its operation principle.Mechanical type mainly contains that nest eye is wheeled, disc type, scoop-wheel, finger-clipped etc., have feature simple in structure, that processing and manufacturing cost is low, but exist in use procedure, seed mechanical damage rate is higher, precise sowing is second-rate, be difficult to adapt to the shortcomings such as high speed operation.Pneumatic type mainly contains 4 kinds of air-sucking type, air-sweeping type, vapour-pressure type and central pneumatic transmission formulas.Draught type seed sowing device complex structure, to shape of the seed bad adaptability, broadcast that the non-circular kind of period of the day from 11 p.m. to 1 a.m such as corn replayed and leakage sowing rate compared with high, power consumption is large, the easy broadcast leakage in the edge of a field.Air-sweeping type seeding unit simple grain is good, and adaptable to seed size, shape is prone to broadcast leakage but fill when kind of a poor effect causes high speed.Internal feed type seeder is that mechanical seed sowing device performance is a kind of preferably, makes full use of centrifugal force and gravity fills kind, has and well fills kind of a performance.But it utilizes, seed deadweight is clear plants, and replay and broadcast leakage phenomenon exist simultaneously, and simple grain rate is difficult to guarantee.For addressing the above problem, need a kind of mechanical strength combined type maize precision seeder.
Summary of the invention
In order to solve, in maize sowing process, mechanical damage rate is high, leakage kind of rate is high, the second-rate problem of precise sowing, the purpose of this utility model is exactly the defect existing for prior art, a kind of mechanical strength combined type maize precision seeder is provided, this seeding unit is simple in structure, can automatically plant clearly and precision metering device, to seed shape requirement is not strict, adaptability is good, seedling-damaging rate is low.
The technical solution adopted in the utility model is: a kind of mechanical strength combined type precision seeder, be provided with seed inlet, and seed plate, the clear brush of planting, air inlet, housing, protects kind of a dish, the mouth of charging seed, power transmission shaft, drive sprocket.It is characterized in that seeding dish-type hole, type hole is designed to the foraminate semicircle cone in bottom, can guarantee smooth seeding, takes into account simultaneously and fills kind of property and clear kind property.When seeding dish-type hole and seeder unit shell laminating, form the half-conical build hole of a sealing.Bottom, type hole pore makes its inside and outside mineralization pressure poor, thereby a seed of bottom, type hole is pressed attached firmly.Size design can guarantee that seed enters completely, to the requirement of seed appearance and size is strict, adaptability is good, seedling-damaging rate is low.It is longer that type hole rests on time in Chong Zhong district, thinks that to fill kind of reliability higher, fills kind of property better.Consider the number of taper hole, take into account the structure needs of seeding unit integral body simultaneously.Here get seed plate diameter D=250mm, taper hole number N=30.
Yu Xing hole, the neighboring opening surface of described seeds protecting plate keeps the gap of 2～3mm, to guarantee that the seed that only a few physical dimension is larger passes through smoothly, does not knock kind of a phenomenon.Whole seeds protecting plate covers Liao Huzhong district and the district of charging seed, and plays buffer action.Angle beta=90 °, Hu Zhong district.In the district of charging seed, on housing, sky is cut in corresponding region, and nest eye becomes the hemivertebra of an opening, and seed drops from the side, completes and charges seed.
Described seeding unit back casing is designed to a plane, with seed plate laminating, thereby forms complete type hole, only in relevant position, fall-sowing area, cuts sky, and seed is dropped out.Seed inlet is arranged in to Chong Zhong district, and air inlet is arranged in Qing Zhong district, reduces difficulty of processing and manufacturing cost under the prerequisite meeting design requirement as far as possible.
The beneficial effects of the utility model are: simple in structure, and without mechanical type seeds pushing device, easy to operate, can automatically plant clearly and precision metering device, can be used for precise sowing corn seed.Under 12km/h operating speed, still higher operation quality can be kept, high speed seeding operation can be adapted to; The seeding dish-type hole of machinery strength combined seed-sowing mechanism is semicircle cone with the nest eye that drain pan forms, and is convenient to seed and fills kind and clear kind by deadweight, and size design can guarantee that seed enters completely, to the requirement of seed appearance and size not strictly, adaptability is good, seedling-damaging rate is low; Utilize gas pressure to retain a seed of nest eyeground portion, for want of enough gas pressure landing under Gravitative Loads of unnecessary seed, simple grain is good; Work relative pressure within the scope of 8～12KPa simultaneously, be significantly less than existing various Pneumatic seeding apparatus.
Accompanying drawing explanation
Accompanying drawing 1 is the interior schematic diagram of the present invention's machinery strength combined type maize precision seeder
Accompanying drawing 2 is external structure schematic diagrames of the present invention's machinery strength combined type maize precision seeder
Accompanying drawing 3 is work schematic diagrames of the present invention's machinery strength combined type maize precision seeder
In figure: 1. seed plate, 2. back casing, 3. power transmission shaft, 4. drive sprocket, 5. seeds protecting plate, 6. charge seed box, 7. seed inlet, 8. procapsid, 9. air inlet, 10. bearing spider, 11. bearings, 12. bearing (ball) covers, the 13. clear brushes of planting.
Embodiment:
Below in conjunction with accompanying drawing, describe structure of the present utility model and embodiment in detail.
Shown in Fig. 1, the present invention's machinery strength combined type maize precision seeder is by seed plate 1, back casing 2, power transmission shaft 3, drive sprocket 4, seeds protecting plate 5, the box 6 of charging seed.Power transmission shaft 3 is connected by flat key with drive sprocket 4, and seed plate 1 is connected by flat key with power transmission shaft 3.Driving-chain 4 is taken turns while rotating and is driven power transmission shaft 3 to rotate, and power transmission shaft 3 drives seed plate 1 to rotate then.According to the box 6 of charging seed shown in Fig. 2, be connected by plain bolt with procapsid 8, bearing 11 packs in bearing block 10, and 10, bearing is welded on procapsid 8, and bearing end 12 lids are connected with bearing block 10 by plain bolt.Seed enters seeding unit inside by external hose by the mouth 7 of charging seed, and the outside gas with pressure enters seeding unit by air inlet 9.Seed is completed and is charged seed by seeds discharging box 6 by the drive of seed plate 1.Shown in Fig. 3, the clear brush 13 of planting is welded on seed plate 1.
Shown in Fig. 3, in the present invention machinery strength combined type maize precision seeder seed-filling process Chong Zhong district I, carry out, corn seed in seed inlet enters chamber under the triple role of deadweight, centrifugal force and gas pressure, be filled with under it or the half-conical build hole of side-lower in, cone inclined-plane is conducive to seed and glides, and makes it to touch the pore of the vertex of a cone.Fill kind of a Xing hole, region and rotate to when cone below bus overlaps with horizontal plane and finish, whole angular range is γ=76 °.Long fill kind of scope and in fill kind fill kind of the performance of filling that kind of mode has guaranteed seeding unit.Corn seed in type hole rotates into Qing Zhong district II with seed plate, and type hole wall is downward-sloping gradually, and seed along wall landing, falls to recharge kind of district's I under the effect of deadweight.The grain seed that only occupies the most of area of pore in bottom, type hole can be pressed and is attached to nest intraocular firmly under the effect at inside and outside differential pressure.If 2 less seeds are simultaneously attached by pressure, process will be subject to outer force-disturbance while planting brush clearly, disequilibrates.More dominant seed is completely pressed and is attached on pore at once, and another seed presses attached power to fall because losing enough gas.Along with the rotation in type hole, gravity seed cleaning effect increases, and lacks enough gas and presses the corresponding increase of probability of dropping of the seed of attached power.Type hole turns over after 45 ° at first quartile, can reach very high simple grain rate, and this angle is the starting position of Hu Zhong district III namely.Yu Xing hole, the neighboring opening surface of seeds protecting plate keeps the gap of 2～3mm, to guarantee that the seed that only a few physical dimension is larger passes through smoothly, does not knock kind of a phenomenon.Whole seeds protecting plate covers Liao Huzhong district and the district's IV of charging seed, and plays buffer action.Angle beta=90 °, Hu Zhong district.In the district's IV of charging seed, on housing, sky is cut in corresponding region, and nest eye becomes the hemicone of an opening, and seed drops from the side, completes and charges seed.
Claims (4)
1. a mechanical strength combined type maize precision seeder, is characterized in that: the main parts size of complete equipment has: seed plate (1), back casing (2), power transmission shaft (3), drive sprocket (4), seeds protecting plate (5), the box of charging seed (6), seed inlet (7), procapsid (8), air inlet (9), bearing spider (10), bearing (11), bearing (ball) cover (12), the clear brush (13) of planting, power transmission shaft (3) is connected by flat key with driving-chain (4) wheel, seed plate (1) is connected by flat key with power transmission shaft (3), drive sprocket (4) drives power transmission shaft (3) to rotate while rotating, power transmission shaft (3) drives seed plate (1) to rotate then, the box (6) of charging seed is connected by plain bolt with procapsid (8), bearing (11) packs in bearing block (10), bearing block (10) is welded on procapsid (8), bearing (ball) cover (12) is connected with bearing block (10) by plain bolt, seed enters seeding unit inside by external hose by charge seed mouthful (7), the outside gas with pressure enters seeding unit by air inlet (9), seed is completed and is charged seed by seeds discharging box (6) by the drive of seed plate (1), the clear brush (13) of planting is welded on seed plate (1).
2. a kind of mechanical strength combined type maize precision seeder according to claim 1, it is characterized in that: seeding dish-type hole, type hole is designed to the foraminate semicircle cone in bottom, can guarantee smooth seeding, take into account simultaneously and fill kind of property and clear kind property, when seeding dish-type hole and seeder unit shell laminating, form the half-conical build hole of a sealing, seed plate diameter D=250mm, type number of perforations N=30.
3. a kind of mechanical strength combined type maize precision seeder according to claim 1, it is characterized in that: Yu Xing hole, the neighboring opening surface of seeds protecting plate keeps the gap of 2～3mm, to guarantee that the larger seed of only a few physical dimension passes through smoothly, do not knock kind of a phenomenon, whole seeds protecting plate covers Liao Huzhong district and the district of charging seed, and play buffer action, angle beta=90 °, Hu Zhong district.
4. a kind of mechanical strength combined type maize precision seeder according to claim 1, is characterized in that: whole seeding unit back casing is designed to a plane, with seed plate laminating, thereby forms complete type hole, only in relevant position, fall-sowing area, cuts sky, and seed is dropped out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420108808.7U CN203723037U (en) | 2014-03-11 | 2014-03-11 | Mechanical pneumatic combined type corn precision seed metering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420108808.7U CN203723037U (en) | 2014-03-11 | 2014-03-11 | Mechanical pneumatic combined type corn precision seed metering device |
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| Publication Number | Publication Date |
|---|---|
| CN203723037U true CN203723037U (en) | 2014-07-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420108808.7U Expired - Fee Related CN203723037U (en) | 2014-03-11 | 2014-03-11 | Mechanical pneumatic combined type corn precision seed metering device |
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| CN (1) | CN203723037U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104186067B (en) * | 2014-09-03 | 2016-02-24 | 山东省农业机械科学研究院 | Air-blowing cleaning type Wheat single-grain precision drilling apparatus |
| CN107736112A (en) * | 2017-12-01 | 2018-02-27 | 南京农业大学 | A kind of mechanical strength combined type vegetables precise seeder |
-
2014
- 2014-03-11 CN CN201420108808.7U patent/CN203723037U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104186067B (en) * | 2014-09-03 | 2016-02-24 | 山东省农业机械科学研究院 | Air-blowing cleaning type Wheat single-grain precision drilling apparatus |
| CN107736112A (en) * | 2017-12-01 | 2018-02-27 | 南京农业大学 | A kind of mechanical strength combined type vegetables precise seeder |
| CN107736112B (en) * | 2017-12-01 | 2023-12-08 | 南京农业大学 | Mechanical and pneumatic combined vegetable precision seed sowing device |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140723 Termination date: 20150311 |
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| EXPY | Termination of patent right or utility model |