CN102577710A - Corn seedling-raising seeder - Google Patents
Corn seedling-raising seeder Download PDFInfo
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- CN102577710A CN102577710A CN2012100849546A CN201210084954A CN102577710A CN 102577710 A CN102577710 A CN 102577710A CN 2012100849546 A CN2012100849546 A CN 2012100849546A CN 201210084954 A CN201210084954 A CN 201210084954A CN 102577710 A CN102577710 A CN 102577710A
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- 240000008042 Zea mays Species 0.000 title claims description 25
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 title claims description 25
- 235000002017 Zea mays subsp mays Nutrition 0.000 title claims description 25
- 235000005822 corn Nutrition 0.000 title claims description 25
- 230000005540 biological transmission Effects 0.000 claims abstract description 30
- 238000010899 nucleation Methods 0.000 claims abstract description 23
- 230000007246 mechanism Effects 0.000 claims abstract description 15
- 238000009331 sowing Methods 0.000 claims description 114
- 230000033001 locomotion Effects 0.000 claims description 10
- 230000008878 coupling Effects 0.000 claims description 9
- 238000010168 coupling process Methods 0.000 claims description 9
- 238000005859 coupling reaction Methods 0.000 claims description 9
- 239000002689 soil Substances 0.000 abstract description 2
- 108010016634 Seed Storage Proteins Proteins 0.000 abstract 2
- 238000000034 method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 206010043458 Thirst Diseases 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 230000000050 nutritive effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000035922 thirst Effects 0.000 description 1
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Abstract
The invention provides aCorn seedling-raising seederThe seeding machine comprises row unit seeding devices, a longitudinal cutter fixing device, wheels, a wheel fixing device, handrails and a transmission mechanism, wherein the row unit seeding devices comprise seed storage devices, seed conveying pipes, seed dividers, seeders, transverse cutters, seed dividing shaft connecting pieces and shaft cutter fixing devices, a plurality of row unit seeding devices are arranged between an upper bottom plate and a lower bottom plate in parallel at certain intervals, the seed storage devices are connected with the seed dividers, the seed dividers are connected with the seeders, the transverse cutters are fixed in front of and on a rear base at certain inclination angles, the longitudinal cutters are connected with the seeding shafts through the shaft cutter fixing devices, the seed dividing shaft connecting pieces and the shaft cutter fixing devices are respectively connected in parallel to seed dividing shafts connected with the transmission mechanism and fixedThe device and the seeding shaft fixing device are characterized in that a wheel shaft of the wheel is connected with the transmission mechanism, the seedling bed is cut into small blocks by the transverse cutter and the longitudinal cutter, the seeds are conveyed to the seeder one by the seeder, and the seeds are implanted into the small soil blocks of the seedling bed one by the seeding shaft.
Description
Technical field
It is a kind of that the present invention provides
The corn seedling-raising seeder, belong to agricultural mechanical field.
Background technology
Food problem always is that countries in the world government pays much attention to, the primary problem that solves, and the various technology of the employing of doing one's utmost improve grain yield.The Chinese government is on the improved seed basis; Promote the optimisation technique of growing seedlings since latter stage 80 year last century; To guarantee that the seedling in the farmland all is top quality seedling, improve grain yield, that is: first step preparation nutrition soil; The bed of growing seedlings that making is made up of suitable nutritive cube too little, thickness, with planting seed on the bed of growing seedlings; Second step was selected top quality seedling and moves into the field.The mountain area and the knob that are unfavorable for mechanized cultivation in China western part, the west and south etc.; This technology still is being widely used so far; It is a very hard work that ground of seed is seeded into the bed of growing seedlings, and the sowing problem is the problem that the peasant thirsts for solving most always, and correspondingly not quick at present seeder implement; Export the rural laborer under the reality of serious overdraw; Main the old and the weak women and children by stay-at-home rural area accomplish sowing work, and therefore, the corn seedling-raising seeder is significant.
Summary of the invention
The present invention aims to provide a kind of address the above problem
The corn seedling-raising seeder, specifically:
The corn seedling-raising seederComprise capable unit seeding apparatus, vertical cutting knife, vertical cutting knife fixture; Wheel, wheel fixing device, handrail and transmission mechanism, the unit seeding apparatus of wherein going comprise kinds of bank deposits device, seed transport tube, seeder, seeder, laterally cutting knife, branch are planted shaft coupling piece and axle cutter fixture.A plurality of capable unit seeding apparatus is installed between seeder upper plate, the lower shoe by a determining deviation is parallel; The kinds of bank deposits device links to each other through seed transport tube with seeder; Seeder links to each other with seeder; Laterally cutting knife is installed on the preceding base, rear base of lower shoe by certain inclination angle; Vertically cutting knife links to each other with the sowing axle of row unit seeding apparatus through fixture, axle cutter fixture, and the branch kind shaft coupling piece of the parallel capable unit seeding apparatus that is provided with also is connected to branch kind shaft fixing device, axle cutter fixture and is attached to the sowing shaft fixing device, and the sowing shaft fixing device links to each other with sowing shaft transmission output; Divide kind of a shaft fixing device to link to each other with a minute kind shaft transmission output, the driving wheel on the wheel shaft of wheel links to each other with a minute kind axle driving wheel, sowing axle driving wheel.
Said seeder comprises branch kind chamber, divides kind of axle and divides kind of the spacing card of axle return, in minute kind chamber, divides kind of axle and seed transport tube crossing point of axes left side to establish the spacing card of branch kind axle return, divides kind of the stroke of axle for dividing kind of the spacing card of axle return to the suitable distance of sowing the chamber.
Said seeder comprises sowing axle, sowing chamber; The sowing axle is established the spacing card of sowing axle return with dividing kind of an axle intersection point upside in the sowing chamber; Return is spacing blocks to the distance of seedling growing block half thickness position for the sowing axle for the stroke of sowing axle, and vertically cutting knife is identical with a sowing stroke.
The branch kind lumen footpath of said seed transport tube caliber, seeder and the sowing lumen footpath of seeder less than 2 times of seed diameter, ensure that a seed passes through smoothly greater than 1 times of seed diameter, avoid blocking the seed transfer passage.
Said vertical cutting knife fixture length deducts the sowing shaft length greater than zero with vertical cutting knife thickness sum.
Between said seedling-raising seeder upper plate, lower shoe wheel fixing device is set; The wheel shaft of driving wheel is fixed on the wheel fixing device; Divide kind of axle and sowing axle, vertical cutting knife period of motion identical; Divide kind of axle and sowing axle, vertically cutting knife is in period of motion, the wheel forward pitch is from equaling seedling growing block length.
Said capable unit seeding apparatus is parallel to be provided with spacing and to equal the seedling growing block width.
Said transmission mechanism can adopt slider-crank mechanism or bald wheel mechanism, and wheel provides power through transmission mechanism, and the driving wheel of transmission mechanism can adopt belt pulley or gear train form to be connected with dividing kind of axle driving wheel with sowing between the axle driving wheel.
Its operation principle is:
Kinds of bank deposits device, seed transport tube, seeder, seeder, laterally cutting knife, divide kind of a shaft coupling piece and an axle cutter fixture to constitute row unit seeder; To be that spacing is parallel with the seedling growing block width be installed between upper and lower base plate a plurality of capable unit seeder; Wheel horizontal cutting knife a strip that bed the is cut into proper width bed of growing seedlings of will growing seedlings that moves ahead in the process, vertically cutting knife is cut into small pieces the strip bed of growing seedlings.
Branch is planted axle, the sowing axle is identical with vertical cutting knife period of motion; When dividing kind of an axle to move to branch kind chamber low order end; The sowing axle just is repositioned to the spacing card of sowing axle return of sowing the chamber upside with vertical cutting knife; During the spacing card of the branch kind axle return that divides kind of axle to move to branch kind chamber high order end, the sowing axle just moves to seedling growing block with vertical cutting knife.
The circle, aperture in kinds of bank deposits device, seed transport tube, branch kind chamber and sowing chamber can only pass through a seed smoothly in 1～2 times of seed diameter, and seed is delivered to the seeder inlet by the kinds of bank deposits device through seed transport tube; When seeder was repositioned to branch kind chamber left side and divides kind of the spacing card of axle return, seed got into and divides kind of a chamber, when proceeding to the sowing chamber and enter the mouth with the axial right lateral of minute kind; The sowing axle just is repositioned to the spacing card of sowing chamber upside sowing axle return; Seed entering sowing chamber, the sowing axle moves to minimum point with vertical cutting knife, and the sowing axle is implanted seed in the bed of growing seedlings; Vertically cutting knife will be cut into small pieces by the bed of growing seedlings that horizontal cutting knife is cut into strip; Treat that seedling grows up to the back and moves in the farmland, the completion seedling is preferred, and does not damage seedlings root in the migration process.
This corn seedling-raising seeder has the following advantages:
1) replaces the manual work bed of will growing seedlings and be divided into fritter and by artificial seeding; Seeder is carried out being cut into the fritter two big functions of appropriate size to a stroke of the other end bed of can realizing sowing, will grow seedlings by bed one end of growing seedlings; Save manpower and time; Alleviate the rural area work and excessively export the manpower shortage phenomenon that causes, ensure by accomplishing seeding and growing seedling season.
2) utilize the sowing axle that seed is forced to implant in the seedling growing block, the sowing chamber can not stopped up by earth, sowing accurately, reliable, no hole.
3) simple in structure, installation, convenient disassembly can pass through to regulate row unit seeder spacing, vertical cutting knife height, horizontal cutting knife tilt adjustment seedling growing block width and thickness, and be stable and reliable for performance.
Description of drawings
Fig. 1 is corn seedling-raising seeder structure embodiment one plane.
Fig. 2 is a corn seedling-raising seeder transmission mechanism sketch map.
Fig. 3 is corn seedling-raising seeder structure embodiment two planes.
1, divides kind of an axle driving wheel, 2, a sowing axle driving wheel, 3, divide kind of a shaft transmission output, 4, sowing shaft transmission output, 5, driving wheel; 6, sowing shaft fixing device, 7, divide kind of a shaft fixing device, 11, the kinds of bank deposits device, 12, seed transport tube, 13: seeder; 14, divide kind of an axle, 15, divide kind of the spacing card of axle return, 16, divide kind of a chamber, 17, the carrier pipe fixture, 18, divide kind of a shaft coupling piece; 19, divide kind of an axle return spring, 21, the sowing axle, 22, seeder, 23, the spacing card of sowing axle return, 24, the sowing chamber; 31, vertical cutting knife fixture, 32, vertical cutting knife, 33, axle cutter fixture, 34, a sowing axle return spring, 41, horizontal cutting knife; 42, preceding base, 43, rear base, 51, wheel fixing device, 52, the wheel axis hole, 53, wheel; 54, wheel shaft, 61, handrail, 71, upper plate, 72, lower shoe.
Embodiment
Embodiment one: be drive unit explanation corn seedling-raising seeder embodiment with the slider-crank mechanism:
Both sides are provided with two wheel fixing devices (51) between corn seedling-raising seeder upper plate (71), lower shoe (72); The wheel shaft (54) of wheel (53) is fixed on the axis hole (52); Driving wheel (5) is set on the wheel shaft (54); Branch kind axle driving wheel (1) and sowing axle driving wheel (2) are set before and after the driving wheel (5); Driving wheel (5) can adopt belt pulley or gear train form to be connected with dividing kind of axle driving wheel (1) with sowing between axle driving wheel (2); Divide kind of an axle driving wheel (1) that power is passed to branch kind shaft transmission output (3); Sowing axle driving wheel (2) is passed to sowing shaft transmission output (4) with power; Branch kind of a shaft transmission output (3) drives to divide plants (a 14) horizontal reciprocating movement, and sowing shaft transmission output (4) drives sowing spool (21) and vertical cutting knife (32) pumps, and divides kind of shaft transmission output (3) identical with sowing shaft transmission output (4) period of motion; When minute kind axle (14) moves to branch kind chamber (16) low order end by minute spacing card of branch kind axle return (15) of kind chamber (16) high order end; To sowing chamber (24) the spacing card of sowing axle return (23) topmost, when minute kind axle (14) moved to the spacing card of branch kind axle return (15) of high order end by minute kind chamber (a 16) low order end, sowing axle (21) moved to the bed of growing seedlings by the sowing chamber spacing card of sowing axle return (23) topmost to sowing axle (21) by the bed motion of growing seedlings.
Two handrails (61) are fixed in corn seedling-raising seeder lower shoe (72) appropriate location, both sides; Install and fix the preceding base (42) and the rear base (43) of horizontal cutting knife at lower shoe (72) lower surface; Laterally cutting knife (41) is fixed on preceding base (42) and the rear base (43) with certain inclination angle; The bed of will growing seedlings in the corn seedling-raising seeder traveling process is cut into the horizontal stripe shape, and must satisfy the seedling-raising seeder stroke and equal the seedling growing block width.
Kinds of bank deposits device (11) links to each other with seeder (13) through seed transport tube (12); Seeder (13) right side links to each other with seeder (22); Seed transport tube (12) lower port is concordant with branch kind of chamber (16) inner surface, goes up the appropriate location in seed transport tube (12) carrier pipe fixture (17) is set, and is fixed on upper plate (71) and goes up support seeder (13); Divide kind of chamber (16) and seed transport tube (12) intersection left side to establish the spacing card of branch kind axle return (15); The left side of dividing kind of axle (14) right side must not surpass seed transport tube (12) divides kind of axle (14) left end to link to each other with dividing kind of a shaft coupling piece (18), and the branch kind shaft coupling piece (18) of the parallel capable unit seeding apparatus that is provided with is connected in parallel to branch kind shaft fixing device (7); Divide kind of shaft fixing device (7) to be connected with dividing kind of a shaft transmission output (3); When dividing kind of an axle driving wheel (1) to move to the A point, divide kind of the spacing card of branch kind axle return (15) that shaft fixing device (7) traction divides kind of axle (14) to move to the leftmost side, branch kind chamber (16), seed gets into and divides kind of a chamber (16); When dividing kind of an axle driving wheel (1) to move to the B point; Divide kind of shaft fixing device (a 7) traction to divide kind of an axle (14) to move to the rightmost side, branch kind chamber (16), seed is delivered to sowing chamber (24), accomplish a seed and carry; When dividing kind of an axle driving wheel (1) to move to the A point once more, begin to carry second seed to sowing chamber (24).
Seeder (22) is installed between seedling-raising seeder upper plate (71), lower shoe (72); Sowing chamber (24) upside is established the sowing axle spacing card of return (23), and sowing (21) lower surface must not surpass divides kind of a upper surface, chamber (16), and vertically cutting knife (32) links to each other with vertical cutting knife fixture (31); Vertically cutting knife fixture (31) links to each other through axle cutter fixture (33) with sowing axle (21); The axle cutter fixture (33) of the parallel capable unit seeding apparatus that is provided with is connected in parallel to sowing shaft fixing device (6), and sowing shaft fixing device (6) is connected with sowing shaft transmission output (4), when sowing axle driving wheel (2) moves to the D point; Sowing shaft fixing device (6) traction sowing axle (21) moves to the spacing card of sowing axle return (23) of sowing top side, chamber (24); Seed gets into sowing chamber (24), and vertically cutting knife (32) moves to peak, when sowing axle driving wheel (2) moves to the C point; Sowing shaft fixing device (6) traction sowing axle (21) and vertical cutting knife (32) move to the bed of growing seedlings; The strip bed of growing seedlings is cut into small pieces, seed is implanted the bed of growing seedlings, accomplish a planting seed; When sowing axle driving wheel (2) moves to the D point once more, begin to sow second seed.
Embodiment two: be drive unit explanation corn seedling-raising seeder embodiment with the cam mechanism:
When corn seedling-raising seeder drive unit adopts cam mechanism; Seeder (13) left end and branch at embodiment one are planted installation branch kind of a return spring (19) between shaft coupling piece (18); Sowing axle return spring (34) is set between upper plate (71) and axle cutter fixture (33); Divide kind of an axle driving wheel (1) to change branch kind axle driving cam into, and directly link to each other with a minute kind shaft fixing device (7), sowing axle driving wheel (2) changes sowing axle driving cam into; And directly link to each other with sowing shaft fixing device (6), all the other respectively install with embodiment one.
When dividing kind of an axle driving cam to move to the A point; Divide kind of shaft fixing device (a 7) traction to divide kind of axle (14) to move to the spacing card of branch kind axle return (15) of the leftmost side, branch kind chamber (16); Seed gets into and divides kind of a chamber (16), after branch kind of an axle driving cam leaves the A point, divides kind of a return spring (a 19) traction to divide kind of an axle (14) to move to the rightmost side, branch kind chamber (16); Seed is delivered to sowing chamber (24); Accomplish a seed and carry, when dividing kind of an axle driving cam to move to the A point once more, begin to carry second seed to sowing chamber (24).
When sowing axle driving cam moved to the D point, sowing shaft fixing device (6) traction sowing axle (21) moved to the spacing card of sowing axle return (23) of sowing top side, chamber (24), and seed gets into sowing chamber (24); Vertically cutting knife (32) moves to peak; After a sowing axle driving cam left D point, a sowing axle return spring (34) traction sowing axle (21) moved to the bed of growing seedlings with vertical cutting knife (32), and strip is grown seedlings bed to be cut into small pieces; Seed is implanted the bed of growing seedlings; Accomplish a planting seed, when sowing axle driving cam moves to the D point once more, begin to sow second seed.
Claims (9)
1. one kind
The corn seedling-raising seederComprise capable unit seeding apparatus, vertical cutting knife (32), vertical cutting knife fixture (31); Wheel (53), wheel fixing device (51), handrail (61) and transmission mechanism; The unit seeding apparatus of wherein going comprises kinds of bank deposits device (11), seed transport tube (12), seeder (13), seeder (22), laterally cutting knife (41), branch are planted shaft coupling piece (18) and axle cutter fixture (33); A plurality of capable unit seeding apparatus is installed between upper plate (71), the lower shoe (72) by a determining deviation is parallel; Kinds of bank deposits device (11) links to each other through seed transport tube (12) with seeder (13); Seeder (13) links to each other with seeder (22); Laterally cutting knife (41) is by on certain inclination angle and the preceding base (42) that is fixed on lower shoe (72), the rear base (43), vertically cutting knife (32) vertically cutting knife link to each other with the sowing axle (21) of axle cutter fixture (33) through fixture (31) with row unit seeding apparatus, a cutter fixture (33) of the capable unit seeding apparatus of parallel setting also is attached to sows shaft fixing device (6); Divide kind of shaft coupling piece (18) and be attached to branch kind shaft fixing device (7); Sowing shaft fixing device (6) links to each other with sowing shaft transmission output (4), divides kind of shaft fixing device (7) to link to each other with dividing kind of a shaft transmission output (3), and the driving wheel (5) on the wheel shaft (54) of wheel (53) links to each other with dividing kind of an axle driving wheel (1), sowing axle driving wheel (2).
2. according to claim 1
The corn seedling-raising seeder, it is characterized in that: the bore of said seed transport tube (12) is greater than 1 times of seed diameter, and less than 2 times of seed diameter, seed transport tube (12) lower surface is concordant with branch kind of upper surface, chamber (16).
3. according to claim 1
The corn seedling-raising seederIt is characterized in that: said seeder (13) comprises branch kind chamber (16), divides kind of an axle (14), divides kind of the axle spacing card of return (15); Divide kind of a left side, chamber (16) the position card (15) of limiting; Divide kind of axle (a 14) stroke be spacing card (16) to the suitable distance of sowing chamber (24), divide kind of chamber (16) bore identical with seed transport tube (12) bore.
4. according to claim 1
The corn seedling-raising seederIt is characterized in that: said seeder (22) comprises sowing axle (21), sowing chamber (24); Sowing chamber (24) upside is established the sowing axle spacing card of return (23); Sowing chamber (24) caliber is identical with seed transport tube (12) bore, and the stroke of sowing axle (21) is the distance of the sowing axle spacing card of return (23) to seedling growing block half thickness position, and vertically cutting knife (32) is identical with sowing axle (21) stroke.
5. according to claim 1
The corn seedling-raising seeder, it is characterized in that: said vertical cutting knife fixture (31) length deducts sowing axle (21) length greater than zero with vertical cutting knife (32) thickness sum.
6. according to claim 1
The corn seedling-raising seeder, it is characterized in that: said branch kind axle (14) and sowing axle (21), vertically cutting knife (32) period of motion identical.
7. according to claim 1
The corn seedling-raising seederIt is characterized in that: between said seedling-raising seeder upper plate (71), lower shoe (72) wheel fixing device (51) is set; The wheel shaft (54) of driving wheel (53) is fixed on the wheel fixing device (51); Divide kind of axle (14) and sowing axle (21), vertically cutting knife is in (32) periods of motion, wheel (53) forward pitch is from equaling seedling growing block length.
8. according to claim 1
The corn seedling-raising seederIt is characterized in that: said transmission mechanism provides power by wheel (53); Comprise driving wheel (5), divide kind of an axle driving wheel (1), sow axle driving wheel (2), divide kind of shaft transmission output (3) and sowing shaft transmission output (4); Driving wheel (5) can adopt belt pulley or gear train form to be connected with dividing kind of axle driving wheel (1) with sowing between axle driving wheel (2); Divide kind of an axle driving wheel (1) that power is passed to branch kind shaft transmission output (3), drive and divide kind of axle (a 14) horizontal reciprocating movement, sowing axle driving wheel (2) is passed to sowing shaft transmission output (4) with power; Drive sowing axle (21) and pump, divide kind of shaft transmission output (3) and to sow shaft transmission output (4) period of motion identical with vertical cutting knife (32).
9. according to claim 1
The corn seedling-raising seeder, it is characterized in that: said capable unit seeding apparatus is parallel to be provided with spacing and to equal the seedling growing block width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210084954 CN102577710B (en) | 2012-03-27 | 2012-03-27 | Corn seedling-raising seeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210084954 CN102577710B (en) | 2012-03-27 | 2012-03-27 | Corn seedling-raising seeder |
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| Publication Number | Publication Date |
|---|---|
| CN102577710A true CN102577710A (en) | 2012-07-18 |
| CN102577710B CN102577710B (en) | 2013-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210084954 Expired - Fee Related CN102577710B (en) | 2012-03-27 | 2012-03-27 | Corn seedling-raising seeder |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10006477A1 (en) * | 2000-02-14 | 2001-08-16 | Juergen Wagner | Method and apparatus for laying endless longitudinally slit foils and plant seedlings involves slitting foil web through slitting blade and has shares, contact pressure rollers and compacting rollers to press down earth over entrenched foil |
| WO2005072508A1 (en) * | 2004-01-30 | 2005-08-11 | Miedema Landbouwwerktuigen- Fabriek B.V. | Device for planting seed(ling) tape |
| CN201957423U (en) * | 2011-02-24 | 2011-09-07 | 中国科学院地理科学与资源研究所 | Corn precision planter |
| CN202050669U (en) * | 2011-04-28 | 2011-11-30 | 宗光良 | Electric corn single seed planter |
| CN202587818U (en) * | 2012-03-27 | 2012-12-12 | 长沙理工大学 | Corn seedling-raising seeder |
-
2012
- 2012-03-27 CN CN 201210084954 patent/CN102577710B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10006477A1 (en) * | 2000-02-14 | 2001-08-16 | Juergen Wagner | Method and apparatus for laying endless longitudinally slit foils and plant seedlings involves slitting foil web through slitting blade and has shares, contact pressure rollers and compacting rollers to press down earth over entrenched foil |
| WO2005072508A1 (en) * | 2004-01-30 | 2005-08-11 | Miedema Landbouwwerktuigen- Fabriek B.V. | Device for planting seed(ling) tape |
| CN201957423U (en) * | 2011-02-24 | 2011-09-07 | 中国科学院地理科学与资源研究所 | Corn precision planter |
| CN202050669U (en) * | 2011-04-28 | 2011-11-30 | 宗光良 | Electric corn single seed planter |
| CN202587818U (en) * | 2012-03-27 | 2012-12-12 | 长沙理工大学 | Corn seedling-raising seeder |
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| Publication number | Publication date |
|---|---|
| CN102577710B (en) | 2013-11-06 |
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Granted publication date: 20131106 Termination date: 20170327 |