CN102763509B - Small hard seed stepless precision drill - Google Patents
Small hard seed stepless precision drill Download PDFInfo
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- CN102763509B CN102763509B CN201210275587.8A CN201210275587A CN102763509B CN 102763509 B CN102763509 B CN 102763509B CN 201210275587 A CN201210275587 A CN 201210275587A CN 102763509 B CN102763509 B CN 102763509B
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Abstract
The invention mainly relates to an agricultural machinery, in particular to a structure of an alfalfa seeding machine. A small hard seed stepless precision drill comprises a rack consisting of a suspension device and a load bearing platform; a sowing depth regulating device and a traveling ground wheel transmission system are arranged below the suspension device; a seed metering device and a fertilizer feeding device are arranged above the load bearing platform; and an opener and an earth covering and pressing device are arranged below the load bearing platform. The small hard seed stepless precision drill is mainly characterized in that helical transition slots are arranged on seed metering wheels of the seed metering device; a single chain wheel is arranged on a ground wheel shaft of the traveling ground wheel transmission system; a drive chain is connected with a duplex chain wheel arranged on a fertilizer feeding shaft by the single chain wheel; and a second drive chain is connected with a triple chain wheel arranged on a seed metering shaft by the duplex chain wheel. The small hard seed stepless precision drill has novel design and compact structure, is simple and convenient to operate and has strong universality and good complete machine adaptability. Particularly, by the matching and regulation of the helical transition slots on the surfaces of the seed metering wheels and the duplex and triple chain wheels on the fertilizer feeding shaft and the seed metering shaft, the stepless precision seeding of small hard seeds can be implemented, the seeding quality and the working efficiency are improved, the yield of the agriculture and the grassland farming is ensured and the crop or grass mechanical harvesting working conditions are improved.
Description
Technical field:
The present invention relates to seeding machinary equipment technical field, specifically refer to a kind of for meeting different agronomic technique requirement, little hardseed (as seeds such as clover, rape, flax, broad beans) is carried out the facility of precision drilling, particularly relate to the structure of a kind of little hardseed stepless essence amount drilling machine.
Background technology:
China, soil types complexity is various, and farming and animal husbandry seed variety is various, size, different, and seeding quantity difference is also very large.The general volume of herbage hardseed is little, quality light, and epidermis is smooth, and precision drilling difficulty is comparatively large, requires higher to seeding machinery.Be specially: broadcast seeder requires mainly sowing, and evenly, do not occur broadcast leakage, resowing phenomenon, the amount of broadcasting is accurate, adjustable, be applicable to the mixed seeding of multi items grass seeds, fertilise of can holding concurrently, realizes a tractor serves several purposes, to the strong adaptability of wind-force, landform, operating efficiency is high, reliable in quality, adjustment and easy to maintenance; Drilling machine, except above-mentioned requirements, also requires line-spacing uniformity, and sowing depth is consistent, covers tight.Existing drilling machine, mostly adopt outer groove wheel or cell-seed distributor, the amount of broadcasting adjustable range is little.The 9MB-2.4 type grass seed drill of Inner Mongol Research Institute adopts seeder with elastic material rotary plate, novel structure, can sow various shape, polytype grass seed, but the amount of broadcasting also limitedly can only regulate, the even reliability of seeding awaits further research.At present, the plantation of the ground herbages (as clover) such as China mountain area, terraced fields mostly is manually sows, and manual operation efficiency is low, the amount of broadcasting be difficult to control and uneven, percentage of seedgermination is low, and seed is not only wasted seriously, and plant strain growth is mixed and disorderly, brings difficulty to the mechanized harvest of herbage.Thus research and develop a kind of strong adaptability, the amount of broadcasting can regulate on a large scale and the little hardseed of precise hard_drawn tuhes stepless essence amount drilling machine seems particularly important.
Summary of the invention:
The object of the invention is to avoid prior art weak point and a kind of little hardseed stepless essence amount drilling machine is provided, thus efficiently solving problems of the prior art.
Object of the present invention can realize by the following technical solutions: a kind of little hardseed stepless essence amount drilling machine, include the frame be made up of suspension arrangement and bearing platform, setting sowing depth device and walking ground wheel transmission system is provided with below suspension arrangement, dispenser, fertilizer distributor is provided with above bearing platform, below bearing platform, be provided with plough and earthing compacting device, its main feature is that the seed wheel of described dispenser is provided with spiral gradient groove; The land axle of described walking ground wheel transmission system is provided with single sprocket chain, the duplicate sprocket that driving chain is provided with by single sprocket chain connection fertilizer expelling shaft, three sprocket wheels that the second driving chain is provided with by duplicate sprocket connection feed shaft.
Described little hardseed stepless essence amount drilling machine, also includes and has been provided with earth scraping device in the below of bearing platform.
Described earth scraping device comprises clean-up scraper, and clean-up scraper is fixed on adjustable pipe one end with holes, and the adjustable pipe other end with holes is through pipe box, and pipe box is connected in frame, and lock-screw is by the upper-lower position of the adjustable clean-up scraper of adjustable pipe with holes; Described clean-up scraper is in " people " font, and angle n is 120 ° ~ 170 °, and thickness is 3 ~ 5mm, is highly 30 ~ 60mm, and the length of side is 1.1 ~ 1.3 times of sown scope, and clean-up scraper front end is higher than rear end, and inclination angle m is 8 ° ~ 25 °.
Described little hardseed stepless essence amount drilling machine, the cross section of described spiral gradient groove is semicircle, smallest end radius 0.5 ~ 1.5mm, maximum end radius 7mm ~ 9mm, and spiral groove shaft is 35 ~ 55mm, helical angle c to long a is 10 ° ~ 25 °; Seed wheel diameter b is φ 30 ~ φ 60mm.
Described little hardseed stepless essence amount drilling machine, described dispenser also includes seed wheel and is located in seeds discharging box, and seed wheel circumferential outer surface and seeds discharging box inwall gap value are not more than 0.3mm, plants case and is located at above seeds discharging box, be connected with frame; Seeding unit end cap is located at the both sides of seeds discharging box, and seed wheel is located on feed shaft, and one end of feed shaft is provided with seeding handwheel.By regulating seeding handwheel adjusted in concert seed shaft to effective active length.
Described setting sowing depth device is made up of adjusting screw, feed screw nut and land wheel frame, and feed screw nut is fixed in frame, hinged between land wheel frame and frame, for sphere compound links between adjusting screw with land wheel frame.
Described little hardseed stepless essence amount drilling machine, described plough is wedge angle long wing staged seed manure ditching, and defertilizing tube is connected with the wedge angle long wing first ladder fertilizer guiding groove, and discharging tube is connected with the wedge angle long wing second ladder seed guiding groove; Be provided with fertilizer-guiding plate in fertilizer guiding groove, fertilizer guiding groove and seed guiding groove difference in height are 30 ~ 60mm.
Described little hardseed stepless essence amount drilling machine, the single sprocket chain that described land axle is provided with, the number of teeth is 10 ~ 15 teeth, the duplicate sprocket on described fertilizer expelling shaft, and the number of teeth is 12 ~ 20 teeth; Three sprocket wheels on feed shaft, its number of teeth is respectively 30 ~ 48 teeth, 18 ~ 40 teeth and 8 ~ 20 teeth, corresponding rotating speed is respectively 2.5 ~ 4.5r/min, 3.6 ~ 6.0r/min, 4.9 ~ 15r/min, engine exports a speed, dispenser can obtain six kinds of precise sowing amounts, significantly regulate the amount of broadcasting by the transmission speed ratio changing each drive sprocket, coordinate the effective active length of fine adjustment spiral gradient groove, realize the stepless precise sowing of little hardseed.
Described little hardseed stepless essence amount drilling machine, dispenser front is located at by described fertilizer distributor, and defertilizing wheel is outer groove wheel, defertilizing wheel is arranged on the fertilizer expelling shaft in defertilizing box, fertile case is arranged at above defertilizing box, and be connected with frame, one end of fertilizer expelling shaft is provided with fertilizer handwheel.By regulating fertilizer handwheel adjusted in concert defertilizing wheel axle to effective active length.
Mount box after frame and suspension arrangement front end hanging plate are articulated with tractor or mini-size tillage machine main frame, and swing around bearing pin, amplitude of fluctuation limits by U-type groove hole on hanging plate, realizes the ground profiling of sower left and right.Before and after between sower ground, profiling is realized by connecting pin shaft clearance between hanging plate and tractor or mini-size tillage machine main frame mounting box.
The invention has the beneficial effects as follows: a kind of little hardseed stepless essence amount drilling machine once can complete smooth, trench digging, fertilising, earthing, sowing, earthing, suppression operation, seed manure can be realized vertically give, soil layer is not disorderly, wet soil covers, seeding quantity adjustable range is large and energy precise hard_drawn tuhes, is applicable to the stepless precision drilling operation of little hardseed in all kinds of landform such as mountain region, terraced fields, cover farming, plot.The machine has following characteristics:
1, seed wheel surface adopts spiral gradient groove, and its radius is 0.5 ~ 9mm, is adapted to the little hardseed precision drilling of various farming and animal husbandry, complete machine highly versatile.
2, little hardseed (as clover, rape etc.) is by wall friction in bottom land and seeds discharging box in groove, makes the abrasion of hardseed shell, improves percentage of seedgermination; By rotating seeding handwheel, regulate seeding nut, can effective active length of spiral gradient groove on each seed wheel of adjusted in concert, screw out single seeding unit end cap, can effective active length of spiral gradient groove on the single seed wheel of fine adjustment, according to all kinds of little hardseed agronomy demand, realize even, the stepless precision drilling of little hardseed amount of seed metering.
3, transmission system is that ground wheel drive land axle rotates, by Chain conveyer, by transmission of power on the sprocket wheel of fertilizer expelling shaft and feed shaft; Fertilizer expelling shaft has duplicate sprocket, feed shaft has three sprocket wheels, engine exports a speed, and dispenser can obtain six kinds of precise sowing amounts.Be matched in clearance between sprocket wheel and axle, adopt key connect and fix with holding screw, the relative position of convenient adjustment sprocket wheel and axle.By the number of teeth of each drive sprocket on conversion fertilizer, feed shaft, change transmission speed ratio, significantly regulate the amount of broadcasting, coordinate the effective active length of fine adjustment spiral gradient groove, realize the little hardseed sowing of stepless precision.
4, be provided with earth scraping device below frame, clean-up scraper is in " people " font, and front end, higher than rear end, is 8 ° ~ 25 ° with horizontal plane inclination angle, is convenient to leveling operation face, ensures seed level quality, prevents hilling.
5, frame and suspension arrangement front end hanging plate hinge mount on box after tractor or mini-size tillage machine main frame, and swing around bearing pin, and amplitude of fluctuation limits by U-type groove hole on hanging plate, realizes the ground profiling of sower left and right.
Before and after between sower ground, profiling is realized by connecting pin shaft clearance between hanging plate and tractor or mini-size tillage machine main frame mounting box, enhances the adaptive capacity of complete machine to hillside fields landform.Complete machine is applicable to all kinds of plot operations such as mountain region, terraced fields, cover farming.
The present invention is novel in design, and compact conformation, easy and simple to handle, highly versatile, complete machine adaptability is good.Especially bigeminy, three sprocket wheels on the spiral gradient groove on seed wheel surface and fertilizer expelling shaft, feed shaft, coordinate adjustment can realize the stepless precise sowing of little hardseed, improve seeding quality and operating efficiency, ensure that the output of farming and animal husbandry, improve crops or herb machinery harvesting work condition.
Accompanying drawing illustrates:
Below in conjunction with accompanying drawing shownschematically most preferred embodiment be described in further detail:
Fig. 1 is plan structure schematic diagram of the present invention;
Fig. 2 is schematic rear view of the present invention;
Fig. 3 is that schematic diagram is looked on the right side of the present invention;
Fig. 4 is seed wheel spiral gradient groove schematic top plan view of the present invention;
Fig. 5 is seed wheel spiral gradient groove 3 d effect graph of the present invention;
Fig. 6 is three sprocket wheel 3 d effect graphs on feed shaft of the present invention;
Fig. 7 is transmission schematic diagram of the present invention;
Fig. 8 is clean-up scraper front view of the present invention;
Fig. 9 is clean-up scraper vertical view of the present invention.
In figure: 10. frame; 11. suspension arrangements; 12. bearing platforms; 20. setting sowing depth devices; 21. adjusting screws; 22. land wheel frames; 23. feed screw nuts; 30. walking ground wheel transmission systems; 31. land wheels; 32. single sprocket chains; 33,34,35. 3 sprocket wheels; 36. duplicate sprockets; 37. land axles; 38. second driving chains; 39. driving chains; 40. earth scraping devices; 41. clean-up scrapers; 42. adjustable pipes with holes; 43. pipe boxes; 50. dispensers; 51. seeds discharging boxes; 52. feed shafts; 53. seeding handwheels; 54. kinds of casees; 55. seed wheels; 56. spiral gradient grooves; 57 seeding nuts; 58. seeding unit end caps; 59. discharging tubes; 60. fertilizer distributors; 61. defertilizing box; 62. fertilizer expelling shafts; 63. fertilizer handwheels; 64. fertile casees; 65. defertilizing wheels; 69. defertilizing tubes; 80. ploughs; 82. fertilizer guiding grooves; 83. seed guiding grooves; 85. fertilizer-guiding plates; 90. earthing compacting devices.
Embodiment:
Below in conjunction with accompanying drawing shownschematically most preferred embodiment be described in further detail: example, only for explaining the present invention, is not intended to limit scope of the present invention.
Embodiment 1, see Fig. 1-6, a kind of little hardseed stepless essence amount drilling machine, include the frame 10 be made up of suspension arrangement 11 and bearing platform 12, setting sowing depth device 20 and walking ground wheel transmission system 30 is provided with below suspension arrangement 11, above bearing platform 12, be provided with dispenser 50, fertilizer distributor 60, be provided with plough 80 and earthing compacting device 90 below bearing platform 12, the seed wheel 55 of described dispenser 50 is provided with spiral gradient groove 56; The land axle 37 of described walking ground wheel transmission system 30 is provided with single sprocket chain 32, driving chain 39 connects by single sprocket chain 32 duplicate sprocket 36, second driving chain 38 that fertilizer expelling shaft 62 is provided with and connects by duplicate sprocket 36 three sprocket wheels 33,34,35 that feed shaft 52 is provided with.
The cross section of described spiral gradient groove 56 is semicircle, smallest end radius 0.5 ~ 1.5mm, maximum end radius 7mm ~ 9mm, and spiral groove shaft is 35 ~ 55mm, helical angle c to long a is 10 ° ~ 25 °; Seed wheel diameter b is φ 30 ~ φ 60mmmm.
Described dispenser 50 also includes seed wheel 55 and is located in seeds discharging box 51, and seed wheel 55 circumferential outer surface and seeds discharging box 51 inwall gap value are not more than 0.3mm.Plant case 54 to be located at above seeds discharging box 51, be connected with frame; Seeding unit end cap 58 is located at the both sides of seeds discharging box 51, and seed wheel 55 is located on feed shaft 52, and one end of feed shaft 52 is provided with seeding handwheel 53.By regulating seeding handwheel 53 adjusted in concert seed wheel 55 axially effective active length.
Described setting sowing depth device 20 is made up of adjusting screw 21, feed screw nut 23 and land wheel frame 22, and feed screw nut 23 is fixed in frame 10, hinged between land wheel frame 22 and frame 10, for sphere compound links between adjusting screw 21 with land wheel frame 22.
Described plough 80 is wedge angle long wing staged seed manure ditching, and defertilizing tube 69 is connected with the wedge angle long wing first ladder fertilizer guiding groove 82, and discharging tube 59 is connected with the wedge angle long wing second ladder seed guiding groove 83; Be provided with fertilizer-guiding plate 85 in fertilizer guiding groove 82, fertilizer guiding groove 82 and seed guiding groove 83 difference in height are 30 ~ 60mm.
See Fig. 7, described little hardseed stepless essence amount drilling machine, the single sprocket chain 32 that described land axle 37 is provided with, the number of teeth is 10 ~ 15 teeth, the duplicate sprocket 36 on described fertilizer expelling shaft 62, and the number of teeth is 12 ~ 20 teeth, three sprocket wheels 33 on feed shaft 52, 34, 35, its number of teeth is respectively 30 ~ 48 teeth, 18 ~ 38 teeth and 8 ~ 20 teeth, corresponding rotating speed is respectively 2.5 ~ 4.5r/min, 3.6 ~ 6.0r/min, 4.9 ~ 15r/min, engine exports a speed, corresponding land wheel rotating speed, dispenser 50 can obtain six kinds of precise sowing amounts, significantly the amount of broadcasting is regulated by the transmission speed ratio changing each drive sprocket, coordinate the effective active length of fine adjustment spiral gradient groove 56, realize alfalfa seed field, forage grass field and saline and alkaline barren field precision drilling 0.4 ~ 1.5 kg/acre, 1.5 ~ 2.5 kgs/acre, the agronomy demand of 2.5 ~ 4 kgs/acre.
Described little hardseed stepless essence amount drilling machine, dispenser 50 front is located at by described fertilizer distributor 60, defertilizing wheel 65 is outer groove wheel, defertilizing wheel 65 is arranged on the fertilizer expelling shaft 62 in defertilizing box 61, fertile case 64 is arranged at above defertilizing box 61, be connected with frame 10, one end of fertilizer expelling shaft 62 is provided with fertilizer handwheel 63.By regulating fertilizer handwheel 63 adjusted in concert defertilizing wheel 65 axially effective active length.
Mount box after frame 10 and suspension arrangement 11 front end hanging plate are articulated with tractor or mini-size tillage machine main frame, and swing around bearing pin, amplitude of fluctuation limits by U-type groove hole on hanging plate, realizes the ground profiling of sower left and right.Before and after between sower ground, profiling is realized by connecting pin shaft clearance between hanging plate and tractor or mini-size tillage machine main frame mounting box.
Embodiment 2, identical with embodiment 1, unlike three sprocket wheels 33,34,35 of transmission system 30, its number of teeth is respectively 40 ~ 45,30 ~ 40 and 15 ~ 20, corresponding rotating speed is respectively 3.0 ~ 4.5r/min, 4.5 ~ 6.0r/min, 8 ~ 15r/min, by changing three teeth number of sprocket, coordinating fine adjustment spiral gradient groove 56 effective active length, realizing the economic crops precision drilling such as rape 0.5 ~ 0.6 kg/acre, the agronomy demand of 0.6 ~ 0.8 kg/acre, 0.8 ~ 1.0 kg/acre.
Embodiment 3, identical with embodiment 1, unlike three sprocket wheels 33,34,35 of transmission system 30, its number of teeth is respectively 32 ~ 42,22 ~ 30 and 10 ~ 15, corresponding rotating speed is respectively 2.8 ~ 3.8r/min, 4.0 ~ 5.0r/min, 9 ~ 12r/min, by changing three teeth number of sprocket, coordinating fine adjustment spiral gradient groove 56 effective active length, realizing the economic crops precision drilling such as flax 5.0 ~ 8.0 kgs/acre, the agronomy demand of 8.0 ~ 10.0 kgs/acre, 10 ~ 12 kgs/acre.
Embodiment 4: identical with embodiment 1, unlike three sprocket wheels 33,34,35 of transmission system 30, its number of teeth is respectively 30 ~ 40,18 ~ 30 and 10 ~ 18, corresponding rotating speed is respectively 3.0 ~ 4.5r/min, 4.5 ~ 6.0r/min, 10 ~ 15r/min, by changing three teeth number of sprocket, coordinate fine adjustment spiral gradient groove 56 effective active length, realize the economic crops precision drilling such as mung bean 1.0 ~ 1.5 kgs/acre, the agronomy demand of 1.5 ~ 2 kgs/acre, 2.0 ~ 2.5 kgs/acre.
Embodiment 5, is shown in Fig. 1, Fig. 8, Fig. 9, a kind of little hardseed stepless essence amount drilling machine, identical with the structure of embodiment 1 to 4, and described little hardseed stepless essence amount drilling machine, also includes and be provided with earth scraping device 40 in the below of bearing platform 12.
Described earth scraping device 40 comprises clean-up scraper 41, and clean-up scraper 41 is fixed on adjustable pipe 42 one end with holes, and adjustable pipe 42 other end with holes is through pipe box 43, and pipe box 43 is connected in frame 10; Described clean-up scraper 41 is in " people " font, and angle n is 120 ° ~ 170 °, and thickness is 3 ~ 5mm, is highly 30 ~ 60mm, and the length of side is 1.1 ~ 1.3 times of sown scope, and clean-up scraper 41 front end is higher than rear end, and inclination angle m is 8 ° ~ 25 °.
Experimental example: the little hardseed of the present invention stepless essence amount drilling machine, when carrying out the precision drilling of clover forage grass field: pour alfalfa seed into kind of case 54, phosphorus, potassium or composite fertilizer pour in fertile case 64, after facility enter the place of working of having cultivated intensely; First by driving chain 38,39, adjustment drive sprocket, the mounting single sprocket chain number of teeth 12 tooth, the double chain wheel number of teeth 19 tooth, three teeth number of sprocket 35 teeth; Secondly regulate the adjusting screw 21 of setting sowing depth device 20, coordinate adjustment plough 80, make plough 80 tip differ from 50 ~ 80mm with land wheel ground level, ensure sowing depth 15 ~ 20mm; Then adjust the height of clean-up scraper 41, ensure that scraping is smooth, not harmony soil; Finally, put into gear, pilot with the speed of travel 1.0 meter per second, by regulating seeding handwheel 53 and seeding unit end cap 58, the effective active length of fine adjustment spiral gradient groove 56 is 40mm, under above-mentioned technical parameter, recording feed shaft 52 rotating speed is 4.2r/min, each seeding unit seeding is even, and seeding quantity is 1.5 kilograms, realizes the sowing of clover forage grass field accurate, even.
When the land wheel speed of travel 1.0 meter per second, the concrete measuring technology parameter of embodiment 1 ~ 4
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (2)
1. a little hardseed stepless essence amount drilling machine, include the frame be made up of suspension arrangement and bearing platform, setting sowing depth device and walking ground wheel transmission system is provided with below suspension arrangement, dispenser, fertilizer distributor is provided with above bearing platform, below bearing platform, be provided with plough and earthing compacting device, it is characterized in that the seed wheel of described dispenser is provided with spiral gradient groove; The land axle of described walking ground wheel transmission system is provided with single sprocket chain, the duplicate sprocket that driving chain is provided with by single sprocket chain connection fertilizer expelling shaft, three sprocket wheels that the second driving chain is provided with by duplicate sprocket connection feed shaft; Also include and be provided with earth scraping device in the below of bearing platform; Described earth scraping device comprises clean-up scraper, and clean-up scraper is fixed on adjustable pipe one end with holes, and the adjustable pipe other end with holes is through pipe box, and pipe box is connected in frame, and lock-screw regulates the upper-lower position of clean-up scraper by adjustable pipe with holes; Described clean-up scraper is in " people " font, and angle n is 120 ° ~ 170 °, and thickness is 3 ~ 5mm, is highly 30 ~ 60mm, and the length of side is 1.1 ~ 1.3 times of sown scope, and clean-up scraper front end is higher than rear end, and inclination angle m is 8 ° ~ 25 °; The cross section of described spiral gradient groove is semicircle, smallest end radius 0.5 ~ 1.5mm, maximum end radius 7mm ~ 9mm, and spiral groove shaft is 35 ~ 55mm, helical angle c to long a is 10 ° ~ 25 °; Seed wheel diameter b is φ 30 ~ φ 60mm; Described dispenser also includes seed wheel and is located in seeds discharging box, and seed wheel circumferential outer surface and seeds discharging box inwall gap value are not more than 0.3mm; Planting case is located at above seeds discharging box, and be connected with frame, seeding unit end cap is located at the both sides of seeds discharging box, and seed wheel is located on feed shaft, and one end of feed shaft is provided with seeding handwheel; Described setting sowing depth device is made up of adjusting screw, feed screw nut and land wheel frame, and feed screw nut is fixed in frame, hinged between land wheel frame and frame, for sphere compound links between adjusting screw with land wheel frame; Described plough is wedge angle long wing staged seed manure ditching, and defertilizing tube is connected with the wedge angle long wing first ladder fertilizer guiding groove, and discharging tube is connected with the wedge angle long wing second ladder seed guiding groove; Be provided with fertilizer-guiding plate in fertilizer guiding groove, fertilizer guiding groove and seed guiding groove difference in height are 30 ~ 60mm; The single sprocket chain that described land axle is provided with, the number of teeth is 10 ~ 15 teeth, the duplicate sprocket on described fertilizer expelling shaft, and the number of teeth is 12 ~ 20 teeth; Three sprocket wheels on feed shaft, its number of teeth is respectively 30 ~ 48 teeth, 18 ~ 40 teeth and 8 ~ 20 teeth.
2. little hardseed as claimed in claim 1 stepless essence amount drilling machine, it is characterized in that dispenser front is located at by described fertilizer distributor, defertilizing wheel is outer groove wheel, defertilizing wheel is arranged on the fertilizer expelling shaft in defertilizing box, fertile case is arranged at above defertilizing box, be connected with frame, one end of fertilizer expelling shaft is provided with fertilizer handwheel.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210275587.8A CN102763509B (en) | 2012-08-04 | 2012-08-04 | Small hard seed stepless precision drill |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210275587.8A CN102763509B (en) | 2012-08-04 | 2012-08-04 | Small hard seed stepless precision drill |
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| CN102763509A CN102763509A (en) | 2012-11-07 |
| CN102763509B true CN102763509B (en) | 2015-04-15 |
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| CN201210275587.8A Active CN102763509B (en) | 2012-08-04 | 2012-08-04 | Small hard seed stepless precision drill |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104255125B (en) * | 2014-09-28 | 2016-01-27 | 山东省农业机械科学研究院 | Rice transplanting is synchronously applied fertilizer trench digging covering device |
| CN104938101A (en) * | 2015-06-23 | 2015-09-30 | 湖南农业大学 | Seeding device with eccentric cam push rods arranged internally and seeder |
| CN112273008B (en) * | 2019-07-27 | 2022-01-04 | 湖北工业大学 | Accurate adjustment mechanism of fertile is spilt to agricultural |
| CN112602395A (en) * | 2021-01-05 | 2021-04-06 | 泰州市金茂田农机制造有限公司 | Efficient uniform operation device for agricultural machinery |
| CN114467425B (en) * | 2022-01-25 | 2023-07-14 | 漯河市农业机械技术中心 | Seeding device, seeding machine and method capable of achieving reasonable close planting and dislocation seeding |
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| DE19541397A1 (en) * | 1995-11-07 | 1997-07-17 | Konrad Hendlmeier | Device for volumetric output and accurate dosing of granules, used in granule scatterer |
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| CN201230458Y (en) * | 2008-06-12 | 2009-05-06 | 杨贵前 | Multifunctional artificial sowing device |
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| CN201360413Y (en) * | 2009-03-03 | 2009-12-16 | 安徽长江农业机械有限责任公司 | Rotary tillage fertilizing and seeding machine with new drive mechanism |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE19541397A1 (en) * | 1995-11-07 | 1997-07-17 | Konrad Hendlmeier | Device for volumetric output and accurate dosing of granules, used in granule scatterer |
| CN2304235Y (en) * | 1997-07-19 | 1999-01-20 | 淮阴市农业机械化研究所 | Semi-precisive wheat feed mechanism |
| CN2798527Y (en) * | 2005-05-09 | 2006-07-26 | 徐家书 | Full-functional sowing machine |
| CN201230458Y (en) * | 2008-06-12 | 2009-05-06 | 杨贵前 | Multifunctional artificial sowing device |
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| CN102763509A (en) | 2012-11-07 |
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