CN102763509A - Small hard seed stepless precision drill - Google Patents
Small hard seed stepless precision drill Download PDFInfo
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- CN102763509A CN102763509A CN2012102755878A CN201210275587A CN102763509A CN 102763509 A CN102763509 A CN 102763509A CN 2012102755878 A CN2012102755878 A CN 2012102755878A CN 201210275587 A CN201210275587 A CN 201210275587A CN 102763509 A CN102763509 A CN 102763509A
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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 the seeding machinary equipment technical field; Specifically be meant a kind of for satisfying different agronomic technique requirements; With the facility that little hardseed (like seeds such as clover, rape, flax, broad beans) carries out precision drilling, relate in particular to the structure of the stepless smart amount drilling machine of a kind of little hardseed.
Background technology:
China, the soil types complicacy is various, and the farming and animal husbandry seed variety is various, and is big or small, different, and seeding quantity difference is also very big.Little, the light weight of the general volume of herbage hardseed, epidermis is smooth, and the precision drilling difficulty is bigger, and seeding machinery is had relatively high expectations.Be specially: it mainly is that sowing is even that broadcast seeder requires, and broadcast leakage, resowing phenomenon do not occur, and the amount of broadcasting is accurate, adjustable; The mixed seeding that is fit to many kinds grass seeds, the fertilise of can holding concurrently is realized a tractor serves several purposes; Adaptability to wind-force, landform is strong, operating efficiency height, reliable in quality, adjustment and easy to maintenance; Drilling machine also requires the line-spacing uniformity except that above-mentioned requirements, sowing depth is consistent, covers tight.Existing drilling machine mostly adopts outer groove wheel or cell-seed distributor, and the amount of broadcasting adjustable range is little.The 9MB-2.4 type grass seed drill of Inner Mongol Research Institute adopts elastomeric material rolling disc friction-type seeding unit; Novel structure; Can sow different shape, polytype grass seed, but the amount of broadcasting can only limitedly regulate also, the even reliability of seeding awaits further research.At present, mostly the plantation of ground herbages (like clover) such as China mountain area, terraced fields is that manual work sows, and manual operation efficiency is low; The amount of broadcasting is difficult to control and inhomogeneous, and percentage of seedgermination is low, and seed is not only wasted seriously; And plant strain growth is mixed and disorderly, brings difficulty for the mechanized harvest of herbage.Thereby it is strong to research and develop a kind of adaptability, and the amount of broadcasting can be regulated on a large scale and the stepless smart amount drilling machine of little hardseed of accurate control seems particularly important.
Summary of the invention:
The objective of the invention is to avoid the prior art weak point and provide a kind of little hardseed stepless smart amount drilling machine, thereby efficiently solve the problem that exists in the prior art.
The object of the invention can adopt following technical scheme to realize: the stepless smart amount drilling machine of a kind of little hardseed; Include the frame of forming by suspension arrangement and bearing platform; Below suspension arrangement, be provided with seed level adjusting device and walking ground wheel transmission system; Above bearing platform, be provided with dispenser, fertilizer distributor, below bearing platform, be provided with plough and suppression of soil device, its main feature is that the seed wheel of said dispenser is provided with the spiral gradient groove; The land axle of described walking ground wheel transmission system is provided with the strand wheel, and driving chain connects the duplicate sprocket that fertilizer expelling shaft is provided with through the strand wheel, and second driving chain connects three sprocket wheels that feed shaft is provided with through duplicate sprocket.
The stepless smart amount drilling machine of described little hardseed also includes and below bearing platform, has been provided with the scraping device.
Described 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 passes pipe box, and pipe box is connected on the frame, and lock-screw is through the upper-lower position of adjustable pipe scalable clean-up scraper with holes; Described clean-up scraper is " people " font, and angle n is 120 °～170 °, and thickness is 3～5mm, highly is 30～60mm, and the length of side is 1.1～1.3 times of sown scope, and the clean-up scraper front end is higher than the rear end, and inclination angle m is 8 °～25 °.
The stepless smart amount drilling machine of described little hardseed, the cross section of described spiral gradient groove is a semicircle, smallest end radius 0.5～1.5mm, maximum end radius 7mm～9mm, the axially long a of helicla flute is 35～55mm, helical angle c is 10 °～25 °; The seed wheel diameter b is φ 30～φ 60mm.
The stepless smart amount drilling machine of described little hardseed, described dispenser also includes seed wheel and is located in the seeds discharging box, and seed wheel circumferential outer surface and seeds discharging box inwall gap value are not more than 0.3mm, plant case and are located at the seeds discharging box top, are connected with frame; The seeding unit end cap is located at the both sides of seeds discharging box, and seed wheel is located on the feed shaft, and an end of feed shaft is provided with the seeding handwheel.Through regulating seeding handwheel adjusted in concert seed shaft to effective active length.
Described seed level adjusting device is formed by regulating leading screw, feed screw nut and land wheel frame, and feed screw nut is fixed on the frame, and is hinged between land wheel frame and the frame, and being that sphere is compound between adjusting leading screw and the land wheel frame links.
The stepless smart amount drilling machine of described little hardseed, described plough is that the long wing staged of wedge angle seed manure divides sowing and applying furrow opener, and defertilizing tube is connected with the long wing first ladder fertilizer guiding groove of wedge angle, and discharging tube is connected with the long wing second ladder seed guiding groove of wedge angle; Be provided with fertilizer-guiding plate in the fertilizer guiding groove, fertilizer guiding groove and seed guiding groove difference in height are 30～60mm.
The stepless smart amount drilling machine of described little hardseed, the strand wheel that described land axle is provided with, the number of teeth is 10～15 teeth, the duplicate sprocket on the described fertilizer expelling shaft, the number of teeth is 12～20 teeth; Three sprocket wheels on the feed shaft; Its number of teeth is respectively 30～48 teeth, 18～40 teeth and 8～20 teeth, and corresponding rotating speed is respectively 2.5～4.5r/min, 3.6～6.0r/min, 4.9～15r/min, speed of engine output; Dispenser can get six kinds of precise sowing amounts; Transmission speed ratio through changing each drive sprocket is regulated the amount of broadcasting significantly, cooperates the effective active length of fine adjustment spiral gradient groove, realizes the stepless precise sowing of little hardseed.
The stepless smart amount drilling machine of described little hardseed, described fertilizer distributor is located at dispenser the place ahead, and defertilizing wheel is an outer groove wheel; Defertilizing wheel is arranged on the fertilizer expelling shaft in the defertilizing box; Fertile case is arranged at the defertilizing box top, is connected with frame, and an end of fertilizer expelling shaft is provided with the fertilizer handwheel.Through regulating fertilizer handwheel adjusted in concert defertilizing wheel axle to effective active length.
Articulate box after frame and suspension arrangement front end hanging plate are articulated in tractor or mini-size tillage machine main frame, and around bearing pin swing, amplitude of fluctuation receives that U type slotted eye limits on the hanging plate, realizes the ground profiling of the sower left and right sides.Profiling articulates between box connecting pin between centers crack by hanging plate and tractor or mini-size tillage machine main frame and realizes before and after between sower ground.
The invention has the beneficial effects as follows: the stepless smart amount drilling machine of a kind of little hardseed can once be accomplished smooth, trench digging, fertilising, earthing, sowing, earthing, suppression operation; Can realize that seed manure vertically gives; Soil layer is not disorderly; Wet soil covers, the seeding quantity adjustable range is big and the accurate control of ability, 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.These facility have following characteristics:
1, the spiral gradient groove is adopted on the seed wheel surface, and its radius is 0.5～9mm, is adapted to the little hardseed precision drilling of various farming and animal husbandries, the complete machine highly versatile.
2, little hardseed (like clover, rape etc.) in groove at the bottom of the groove with seeds discharging box in wall friction, make the abrasion of hardseed shell, improve percentage of seedgermination; Through rotation seeding handwheel; Regulate the seeding nut; But effective active length of spiral gradient groove on each seed wheel of adjusted in concert screws out single seeding unit end cap, but effective active length of spiral gradient groove on the single seed wheel of fine adjustment; According to all kinds of little hardseed agronomy demands, realize even, the stepless precision drilling of little hardseed amount of seed metering.
3, transmission system be land wheel drivingly wheel shaft rotate, through chain drive, with transmission of power to the sprocket wheel of fertilizer expelling shaft and feed shaft; Duplicate sprocket is arranged on the fertilizer expelling shaft, three sprocket wheels are arranged on the feed shaft, speed of engine output, dispenser can get six kinds of precise sowing amounts.Between sprocket wheel and the axle be matched in clearance, adopt key to connect and fix with holding screw, convenient adjustment sprocket wheel with spool relative position.Through the number of teeth of each drive sprocket on conversion fertilizer, the feed shaft, change transmission speed ratio, regulate the amount of broadcasting significantly, cooperate the effective active length of fine adjustment spiral gradient groove, realize the little hardseed sowing of stepless precision.
4, frame below is provided with the scraping device, and clean-up scraper is " people " font, and front end is higher than the rear end, with the horizontal plane inclination angle be 8 °～25 °, be convenient to the smooth scope of operation, guarantee the seed level quality, prevent hilling.
5, frame and suspension arrangement front end hanging plate articulate on the box after being articulated in tractor or mini-size tillage machine main frame with bearing pin, and around bearing pin swing, and amplitude of fluctuation receives that U type slotted eye limits on the hanging plate, realizes the ground profiling of the sower left and right sides.
Profiling articulates between box connecting pin between centers crack by hanging plate and tractor or mini-size tillage machine main frame and realizes before and after between sower ground, has strengthened the adaptive capacity of complete machine to the 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 is easy and simple to handle, highly versatile, and complete machine adaptability is good.Especially bigeminy, three sprocket wheels on the spiral gradient groove on seed wheel surface and fertilizer expelling shaft, the feed shaft; Fit adjustment can realize the stepless precise sowing of little hardseed; Seeding quality and operating efficiency have been improved; Guarantee the output of farming and animal husbandry, improved crops or herb machinery harvesting work condition.
Description of drawings:
Do further to detail below in conjunction with the most preferred embodiment shown in the accompanying drawing:
Fig. 1 is a plan structure sketch map of the present invention;
Fig. 2 is a schematic rear view of the present invention;
Fig. 3 looks sketch map for the right side of the present invention;
Fig. 4 is a seed wheel spiral gradient groove schematic top plan view of the present invention;
Fig. 5 is a seed wheel spiral gradient groove 3 d effect graph of the present invention;
Fig. 6 is three sprocket wheel 3 d effect graphs on the feed shaft of the present invention;
Fig. 7 is a transmission sketch map of the present invention;
Fig. 8 is a clean-up scraper front view of the present invention;
Fig. 9 is a clean-up scraper vertical view of the present invention.
Among the figure: 10. frame; 11. suspension arrangement; 12. bearing platform; 20. seed level adjusting device; 21. adjusting leading screw; 22. land wheel frame; 23. feed screw nut; 30. walking ground wheel transmission system; 31. land wheel; 32. strand wheel; 33,34,35. 3 sprocket wheels; 36. duplicate sprocket; 37. land axle; 38. second driving chain; 39. driving chain; 40. scraping device; 41. clean-up scraper; 42. adjustable pipe with holes; 43. pipe box; 50. dispenser; 51. seeds discharging box; 52. feed shaft; 53. seeding handwheel; 54. kind case; 55. seed wheel; 56. spiral gradient groove; 57 seeding nuts; 58. seeding unit end cap; 59. discharging tube; 60. fertilizer distributor; 61. defertilizing box; 62. fertilizer expelling shaft; 63. fertilizer handwheel; 64. fertile case; 65. defertilizing wheel; 69. defertilizing tube; 80. plough; 82. fertilizer guiding groove; 83. seed guiding groove; 85. fertilizer-guiding plate; 90. suppression of soil device.
Embodiment:
Do further to detail below in conjunction with the most preferred embodiment shown in the accompanying drawing: institute gives an actual example and only is used to explain the present invention, is not to be used to limit scope of the present invention.
Embodiment 1; See Fig. 1-6, the stepless smart amount drilling machine of a kind of little hardseed includes the frame of being made up of suspension arrangement 11 and bearing platform 12 10; Below suspension arrangement 11, be provided with seed level adjusting device 20 and walking ground wheel transmission system 30; Above bearing platform 12, be provided with dispenser 50, fertilizer distributor 60, below bearing platform 12, be provided with plough 80 and suppression of soil device 90, the seed wheel 55 of said dispenser 50 is provided with spiral gradient groove 56; The land axle 37 of described walking ground wheel transmission system 30 is provided with strand wheel 32; Driving chain 39 connects three sprocket wheels 33,34,35 that feed shafts 52 are provided with through duplicate sprocket 36, the second driving chains 38 that strand wheel 32 connection fertilizer expelling shafts 62 are provided with through duplicate sprocket 36.
The cross section of described spiral gradient groove 56 is a semicircle, smallest end radius 0.5～1.5mm, and maximum end radius 7mm～9mm, the axially long a of helicla flute is 35～55mm, helical angle c is 10 °～25 °; The seed wheel diameter b is φ 30～φ 60mmmm.
Described dispenser 50 also includes seed wheel 55 and is located in the seeds discharging box 51, and seed wheel 55 circumferential outer surfaces and seeds discharging box 51 inwall gap values are not more than 0.3mm.Plant case 54 and be located at seeds discharging box 51 tops, 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 the feed shaft 52, and an end of feed shaft 52 is provided with seeding handwheel 53.Through regulating seeding handwheel 53 adjusted in concert seed wheels 55 axially effective active lengths.
Described seed level adjusting device 20 is formed by regulating leading screw 21, feed screw nut 23 and land wheel frame 22, and feed screw nut 23 is fixed on the frame 10, and is hinged between land wheel frame 22 and the frame 10, and being that sphere is compound between adjusting leading screw 21 and the land wheel frame 22 links.
Described plough 80 divides sowing and applying furrow opener for the long wing staged of wedge angle seed manure, and defertilizing tube 69 is connected with the long wing first ladder fertilizer guiding groove 82 of wedge angle, and discharging tube 59 is connected with the long wing second ladder seed guiding groove 83 of wedge angle; Be provided with fertilizer-guiding plate 85 in the fertilizer guiding groove 82, fertilizer guiding groove 82 is 30～60mm with seed guiding groove 83 differences in height.
See Fig. 7, the stepless smart amount drilling machine of described little hardseed, the strand wheel 32 that described land axle 37 is provided with, the number of teeth is 10～15 teeth, the duplicate sprocket 36 on the described fertilizer expelling shaft 62, the number of teeth is 12～20 teeth; Three sprocket wheels 33,34,35 on the feed shaft 52; 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, speed of engine output, rotating speed of corresponding land wheel; Dispenser 50 can get six kinds of precise sowing amounts; Transmission speed ratio through changing each drive sprocket is regulated the amount of broadcasting significantly, cooperates fine adjustment spiral gradient groove 56 effective active lengths, 0.4～1.5 kilogram/mu of realization alfalfa seed field, forage grass field and saline and alkaline barren field precision drilling, 1.5～2.5 kilograms/mu, 2.5～4 kilograms/mu agronomy demand.
The stepless smart amount drilling machine of described little hardseed; Described fertilizer distributor 60 is located at dispenser 50 the place aheads; Defertilizing wheel 65 is an outer groove wheel, and defertilizing wheel 65 is arranged on the fertilizer expelling shaft 62 in the defertilizing box 61, and fertile case 64 is arranged at defertilizing box 61 tops; Be connected with frame 10, an end of fertilizer expelling shaft 62 is provided with fertilizer handwheel 63.Through regulating fertilizer handwheel 63 adjusted in concert defertilizing wheels 65 axially effective active lengths.
Articulate box after frame 10 and suspension arrangement 11 front end hanging plates are articulated in tractor or mini-size tillage machine main frame, and around bearing pin swing, amplitude of fluctuation receives that U type slotted eye limits on the hanging plate, realizes the ground profiling of the sower left and right sides.Profiling articulates between box connecting pin between centers crack by hanging plate and tractor or mini-size tillage machine main frame and realizes before and after between sower ground.
Embodiment 3; Identical with embodiment 1, different is three sprocket wheels 33,34,35 of transmission system 30, and 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; Through changing three teeth number of sprocket, cooperate fine adjustment spiral gradient groove 56 effective active lengths, 5.0～8.0 kilograms/mu of economic crops precision drilling such as realization flax, 8.0～10.0 kilograms/mu, 10～12 kilograms/mu agronomy demand.
Embodiment 4: identical with embodiment 1; Different is three sprocket wheels 33,34,35 of transmission system 30; Its number of teeth is respectively 30～40,18～30 and 10～18, and corresponding rotating speed is respectively 3.0～4.5r/min, 4.5～6.0r/min, 10～15r/min, through changing three teeth number of sprocket; Cooperate fine adjustment spiral gradient groove 56 effective active lengths, 1.0～1.5 kilograms/mu of economic crops precision drilling such as realization mung bean, 1.5～2 kilograms/mu, 2.0～2.5 kilograms/mu agronomy demand.
Embodiment 5, see Fig. 1, Fig. 8, Fig. 9, and the stepless smart amount drilling machine of a kind of little hardseed is identical with the structure of embodiment 1 to 4, and the stepless smart amount drilling machine of described little hardseed also includes and below bearing platform 12, is provided with scraping device 40.
Described scraping device 40 comprises clean-up scraper 41, and clean-up scraper 41 is fixed on adjustable pipe 42 1 ends with holes, and adjustable pipe 42 other ends with holes pass pipe box 43, and pipe box 43 is connected on the frame 10; Described clean-up scraper 41 is " people " font, and angle n is 120 °～170 °, and thickness is 3～5mm, highly is 30～60mm, and the length of side is 1.1～1.3 times of sown scope, and clean-up scraper 41 front ends are higher than the rear end, and inclination angle m is 8 °～25 °.
Experimental example: the stepless smart amount drilling machine of the little hardseed of the present invention, carrying out the accurate bar in clover forage grass field sowing time: pour alfalfa seed into kind of case 54, phosphorus, potassium or composite fertilizer pour in the fertile case 64, after facility get into the place of working of having cultivated intensely; At first through driving chain 38,39, the adjustment drive sprocket articulates strand tooth number 12 teeth, double-stranded tooth number 19 teeth, three teeth number of sprocket, 35 teeth; Adjusting leading screw 21, cooperation adjustment plough 80 that next regulates seed level adjusting device 20 make plough 80 tips differ from 50～80mm with the land wheel ground level, guarantee sowing depth 15～20mm; Adjust the height of clean-up scraper 41 then, guarantee that scraping is smooth, not harmony soil; At last, put into gear, pilot with the speed of travel 1.0 meter per seconds; Through regulating seeding handwheel 53 and seeding unit end cap 58, fine adjustment spiral gradient groove 56 effective active lengths are 40mm, under above-mentioned technical parameter; Recording feed shaft 52 rotating speeds is 4.2r/min; Each seeding unit seeding is even, and seeding quantity is 1.5 kilograms, realizes that the sowing of clover forage grass field is accurate, even.
When the land wheel speed of travel 1.0 meter per seconds, embodiment 1～4 concrete measuring technology parameter
The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. the stepless essence of little hardseed is measured drilling machine; Include the frame of forming by suspension arrangement and bearing platform; Below suspension arrangement, be provided with seed level adjusting device and walking ground wheel transmission system; Above bearing platform, be provided with dispenser, fertilizer distributor, below bearing platform, be provided with plough and suppression of soil device, it is characterized in that the seed wheel of said dispenser is provided with the spiral gradient groove; The land axle of described walking ground wheel transmission system is provided with the strand wheel, and driving chain connects the duplicate sprocket that fertilizer expelling shaft is provided with through the strand wheel, and second driving chain connects three sprocket wheels that feed shaft is provided with through duplicate sprocket.
2. the stepless essence of little hardseed as claimed in claim 1 is measured drilling machine, it is characterized in that also including below bearing platform, being provided with the scraping device.
3. the stepless smart amount drilling machine of little hardseed as claimed in claim 2; It is characterized in that described scraping device comprises clean-up scraper; Clean-up scraper is fixed on adjustable pipe one end with holes; The adjustable pipe other end with holes passes pipe box, and pipe box is connected on the frame, and lock-screw is regulated the upper-lower position of clean-up scraper through adjustable pipe with holes; Described clean-up scraper is " people " font, and angle n is 120 °～170 °, and thickness is 3～5mm, highly is 30～60mm, and the length of side is 1.1～1.3 times of sown scope, and the clean-up scraper front end is higher than the rear end, and inclination angle m is 8 °～25 °.
4. the stepless smart amount drilling machine of little hardseed as claimed in claim 1; The cross section that it is characterized in that described spiral gradient groove is a semicircle, smallest end radius 0.5～1.5mm, maximum end radius 7mm～9mm; The axially long a of helicla flute is 35～55mm, and helical angle c is 10 °～25 °; The seed wheel diameter b is φ 30～φ 60mm.
5. the stepless smart amount drilling machine of little hardseed as claimed in claim 1 is characterized in that described dispenser also includes seed wheel and is located in the seeds discharging box, and seed wheel circumferential outer surface and seeds discharging box inwall gap value are not more than 0.3mm; Plant case and be located at the seeds discharging box top, be connected with frame, the seeding unit end cap is located at the both sides of seeds discharging box, and seed wheel is located on the feed shaft, and an end of feed shaft is provided with the seeding handwheel.
6. the stepless smart amount drilling machine of little hardseed as claimed in claim 1; It is characterized in that described seed level adjusting device forms by regulating leading screw, feed screw nut and land wheel frame; Feed screw nut is fixed on the frame; Hinged between land wheel frame and the frame, to regulate between leading screw and the land wheel frame be that sphere is compound links.
7. the stepless smart amount drilling machine of little hardseed as claimed in claim 1; It is characterized in that: described plough is that the long wing staged of wedge angle seed manure divides sowing and applying furrow opener; Defertilizing tube is connected with the long wing first ladder fertilizer guiding groove of wedge angle, and discharging tube is connected with the long wing second ladder seed guiding groove of wedge angle; Be provided with fertilizer-guiding plate in the fertilizer guiding groove, fertilizer guiding groove and seed guiding groove difference in height are 30～60mm.
8. the stepless smart amount drilling machine of little hardseed as claimed in claim 1 is characterized in that the strand wheel that described land axle is provided with, and the number of teeth is 10～15 teeth, the duplicate sprocket on the described fertilizer expelling shaft, and the number of teeth is 12～20 teeth; Three sprocket wheels on the feed shaft, its number of teeth are respectively 30～48 teeth, 18～40 teeth and 8～20 teeth.
9. the stepless smart amount drilling machine of little hardseed as claimed in claim 1; It is characterized in that described fertilizer distributor is located at dispenser the place ahead; Defertilizing wheel is an outer groove wheel, and defertilizing wheel is arranged on the fertilizer expelling shaft in the defertilizing box, and fertile case is arranged at the defertilizing box top; Be connected with frame, an end of fertilizer expelling shaft is provided with the fertilizer handwheel.
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| CN201210275587.8A CN102763509B (en) | 2012-08-04 | 2012-08-04 | Small hard seed stepless precision drill |
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| CN201210275587.8A CN102763509B (en) | 2012-08-04 | 2012-08-04 | Small hard seed stepless precision drill |
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Cited By (5)
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| CN104255125A (en) * | 2014-09-28 | 2015-01-07 | 山东省农业机械科学研究院 | Synchronous fertilizing, ditching and earthing device for rice transplanting |
| 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 |
| CN112273008A (en) * | 2019-07-27 | 2021-01-29 | 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 |
| CN114467425A (en) * | 2022-01-25 | 2022-05-13 | 漯河市农业机械技术中心 | Seed metering device, seeder and method for satisfying reasonable close planting and staggered seeding |
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| CN104255125A (en) * | 2014-09-28 | 2015-01-07 | 山东省农业机械科学研究院 | Synchronous fertilizing, ditching and earthing device for rice transplanting |
| 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 |
| CN112273008A (en) * | 2019-07-27 | 2021-01-29 | 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 |
| CN114467425A (en) * | 2022-01-25 | 2022-05-13 | 漯河市农业机械技术中心 | Seed metering device, seeder and method for satisfying reasonable close planting and staggered seeding |
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| CN102763509B (en) | 2015-04-15 |
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