CN102986344A - Pneumatic concentrate-discharging small-particle-size crop seed precise seed-metering device - Google Patents
Pneumatic concentrate-discharging small-particle-size crop seed precise seed-metering device Download PDFInfo
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- CN102986344A CN102986344A CN201110272079XA CN201110272079A CN102986344A CN 102986344 A CN102986344 A CN 102986344A CN 201110272079X A CN201110272079X A CN 201110272079XA CN 201110272079 A CN201110272079 A CN 201110272079A CN 102986344 A CN102986344 A CN 102986344A
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Abstract
The invention belongs to the technical field of seed metering in agricultural machinery, and specifically belongs to a pneumatic concentrate-discharging precise seed-metering device suitable for small-particle-size crops such as vegetables, forage grass, oilseed rape and cereals. The device comprises a left seed-metering device side board, a right seed-metering device side board, a seed-metering apparatus, a seed box assembly, a seed-metering device drum assembly, a seed-metering device housing, and the like. In a working process, the inner drum is fixed, and the outer drum rotates. A working principle of negative-pressure seed suction and positive-pressure seed dropping is adopted. Seed damage during a metering process is reduced, seeds are saved, singling and thinning processes are simplified, and production cost is reduced. Also, a concentrate-discharging technology is adopted, such that seed-metering device structure is simplified, and production efficiency is improved.
Description
Technical field
The present invention relates to seeding technical field in the agricultural machinery, specifically belong to a kind of strength integrated arranging small particle diameter crop seed precise seeder, be applicable to the precision drilling of the small particle diameter crop seeds such as vegetables, herbage, rape and cereal.
Background technology
The seed grain average geometric particle diameter of the cereal crops such as the economic crops such as most vegetables, herbage, beet and rape and millet, broom corn millet belongs to small particle diameter kind subcategory in 3mm.According to Ministry of Agriculture statistics, national vegetables in 2009 and melon sowing area 2030.77 ten thousand hm
2, output 60998.21 ten thousand t.Sowing of vegetable area 1795.37 ten thousand hm wherein
2, output reaches 54032.32 ten thousand t; Simultaneously China is the country of rapeseed cultivation area maximum in the world, and the gross area and gross yield be all above 1/3 of world's total amount, and shows a rising trend.In the mechanization production of small particle diameter crop, important agenda is put in the research of seeding technique and equipment gradually.
Little, the good fluidity of small particle diameter seed particle size realizes that defective ejaculation amount sowing difficulty is large.At present domestic the plantation for the small particle diameter seed generally adopts seedling raising and transplanting or first artificial slide to plant, broadcast sowing traditional planting patterns of rear thinning, final singling, has the deficiencies such as operation is various, labour intensity large, waste seed manure, economic benefit is not high, production efficiency is low.Therefore mechanized cultivation more and more comes into one's own, and the seeding unit that is applied at present the small particle diameter precision drilling mainly comprises two kinds of mechanical type and pneumatic types.Mechanical seed sowing device is take indent type, band clip as main, and main deficiency is that the percentage of damage of seed is high, and the type hole plug is serious, precision drilling poor effect etc.; Pneumatic seeding apparatus is to finish take air-flow as carrier to get kind, protect kind, charge seed, and has the seed damage littlely, to seed shape requirement advantages of higher not, is the choose reasonable of present small particle diameter crop seeding method.
Pneumatic type small particle diameter seeding unit in the market mostly is single file, production efficiency is low, integrated arranging (a device multirow formula) is common to be the pin suction, although this type of seeding unit can be realized the seeding of smart amount, but open kind case has determined such seeding unit and has existed in process of production leakage to plant, need the deficiencies such as kind of amount is large, be not suitable for the field sowing operation, be difficult to realize the precision drilling of field small particle diameter crop.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, design provides a kind of strength integrated arranging small particle diameter crop seed precise seeder, this seeding unit adopts negative pressure to inhale and plants, the malleation seeding, reduce seeding unit tandem working link, not only efficiently solve cracky, susceptible to plugging technical barrier that the small particle diameter crop occurs in the precision drilling process, also realized the seeding of centralized smart amount, reach seed, simplification final singling and the thinning process of saving, reduce production costs the purpose of raising labour efficiency.
The present invention realizes that by following technical proposal accompanying drawings is as follows:
A kind of strength integrated arranging small particle diameter crop seed precise seeder comprises left and right two seeding unit side plates 1, dispenser 2, kind case combination 3, seeding unit cylinder combination 4, seeding unit case 5.Described seeding unit cylinder combination 4 connects with left and right seeding unit side plate 1 and is installed on the bearing block 7; Described dispenser 2 is installed in the below of urceolus 11, and its two ends are installed on the left and right seeding unit side plate 1 by bolt-connection; The two ends of described kind of case combination 3 are fixed on the left and right seeding unit side plate 1 by bolt-connection; Described seeding unit case 5 be positioned at seeding unit cylinder combination 4 directly over, and be installed on the left and right seeding unit side plate 1 by bolt-connection.
Described seeding unit cylinder combination 4 comprises urceolus 11, inner core seam 12 and left and right two branch sleeves 13, sliding bearing 14, inner core baffle plate 6 and circlip 15.Inner core seam 12 is formed by inner core 12a, inner core side plate 12b, negative tube 12c and forward voltage diode 12d seam, and inner core 12a is divided into zone of positive pressure 9 and the negative pressuren zone 10 that does not communicate with the inner chamber of urceolus 11; Be processed with two through holes on the inner core side plate 12b, left and right two forward voltage diode 12d are welded on respectively left and right two inner core side plate 12b lower through-hole upper and by inner core side plate 12b and communicate with zone of positive pressure 9, and left and right two negative tube 12c are welded on respectively that left and right two inner core side plate 12b go up and the top through hole by inner core side plate 12b communicates with negative pressuren zone 10; Left and right two inner core side plate 12b weld with the two ends of inner core 12a respectively, and its circumferencial direction and left and right branch sleeve 13 are matched in clearance; Inner core baffle plate 6 is provided with two through holes, and is bolted with right seeding unit side plate 1, and right side negative tube 12c and right side forward voltage diode 12d are inserted in respectively in two through holes on the inner core baffle plate 6 to keep inner core seam 12 not rotate; Left and right two circlips 15 limit endwisely slipping of cylinder combination 4.Be processed with 9 row suckers on the urceolus 11, the outer wall of its inwall and inner core 12a is matched in clearance, urceolus 11 two ends connect with branch sleeve 13 by bolt, and branch sleeve 13 is installed on the sliding bearing 14, and the branch sleeve 13 of seeding unit left end connects with seeding unit sprocket wheel 8 by screw.
Described kind of case combination 3 comprises grain conductor 21, seed box 22, fills kind of device 30 and rear bearing sheet 31.The two ends of rear bearing sheet 31 are installed on the left and right seeding unit side plate 1 by bolt-connection, filling kind of device 30 is fixed on the rear bearing sheet 31 by bolt-connection, seed box 22 gets up with rear bearing sheet 31 usefulness bolt-connections by L shaped gripper shoe 29, grain conductor 21 1 ends are installed in leading on kind of the mouth of seed box 22, and the other end is installed on the stream kind hole 18 of filling kind of device 30.Described kind of the device 30 that fills comprises dividing plate 19, left and right two connecting plates 20, arc 33 and unload kind of a pin 17, unload 16,8 dividing plates 19 of kind of plate arc 33 is separated into 9 row, each row is provided with stream kind of hole 18, and each stream kind of hole 18 is corresponding with the sucker row on the urceolus 11 respectively; Two are unloaded kind pin 17 and are welded on respectively on the left and right connecting plate 20, and the deep-slotted chip breaker that unloads kind of plate 16 two ends is stuck in and unloads on kind of the pin 17.Described seed box 22 comprises outer cylindrical casing 26, built-in boss 27 and pilot pin 23, outer cylindrical casing 26 covers on the built-in boss 27, pilot pin 23 couples together the lower ear plate 25 of welding on the upper ear plate 24 of welding on the outer cylindrical casing 26 and the built-in boss 27, upper ear plate 24 comprises three upper ear plate 24a, 24b and 24c, be connected with lower ear plate 25 under seeding unit duty, pause mode and the state of being connected successively, upper ear plate 24a, 24b and 24c are welded on the outer wall lower end of outer cylindrical casing 26.Weld a not closed circle 34 on the lower surface of outer cylindrical casing 26.The bottom of built-in boss 27 outwards is bent into a deep-slotted chip breaker 37, deep-slotted chip breaker 37 bottoms are processed with one and unload kind of mouth 40 and 9 through holes, it is corresponding with 9 through holes that 9 of the bottom weldings of built-in boss 27 are led kind of mouth 28, irregular roundness ring flat-plate 35 be welded on deep-slotted chip breaker 37 above, and match with the anchor ring of closed circle 34 not; 3 moon-shaped plates 38 are welded on the two ends of Circular Plate 35 and unload an end of kind of mouth 40, and deep-slotted chip breaker 37 is separated into 3 zones, namely Circulation Area 32, stagnant area 36, unload stream district 39.
9 mouths of charging seed on the described dispenser 2 are corresponding with 9 row suckers of urceolus 11 respectively.
Beneficial effect of the present invention and positive role are:
1, the present invention uses the seeding principle of positive/negative-pressure convolution, the tandem working link of the former complexity of seeding unit is down to get plants and two links of seeding, has simplified the structure of seeding unit.
2, the present invention adopts that negative pressure is inhaled kind, malleation is charged seed, and has avoided the broadcast leakage, the disconnected bar phenomenon that the obstruction of sucker are caused because of small-sized seed; Realize the precision drilling of small particle diameter crop seed simple grain, without damaged, saved seed in the seeding process, can significantly reduce the field management work such as follow-up thinning, final singling, reduced production cost.
3, the present invention is strength integrated arranging seeding unit, and seeding multirow of a seeding unit is convenient to follow-up simplification sower complete machine structure.
Description of drawings
Fig. 1: main TV structure schematic diagram of the present invention.
Fig. 2: plan structure schematic diagram of the present invention.
Fig. 3: cylinder combination structural representation of the present invention; Wherein, Fig. 3-a: cylinder combination partial sectional view of the present invention; Fig. 3-b: cylinder combination A-A cutaway view of the present invention.
Fig. 4: of the present invention kind of case combining structure schematic diagram; Wherein, Fig. 4-a: of the present invention kind of case makes up main TV structure schematic diagram; Fig. 4-b: of the present invention kind of case makes up left TV structure schematic diagram; Fig. 4-c: of the present invention kind of case combination plan structure schematic diagram.
Fig. 5: seed box outer cylindrical casing structural representation of the present invention.
Fig. 6: the built-in boss structural representation of seed box of the present invention.
Numbering is as follows among the figure: 1. seeding unit side plate, 2. dispenser, 3. plant the case combination, 4. the seeding unit cylinder makes up 5. seeding unit cases, 6. inner core baffle plate, 7. bearing block, 8. seeding unit sprocket wheel, 9. zone of positive pressure, 10. negative pressuren zone, 11. urceolus, 12. inner core seam, the 12a inner core, 12b inner core side plate, the 12c negative tube, the 12d forward voltage diode, 13. branch sleeve, 14. sliding bearing, 15. circlip, 16. unload kind of a plate, 17. unload kind of a pin, 18. stream kind of hole, 19. dividing plate, 20. connecting plate, 21. grain conductor, 22. seed box, 23. pilot pin, 24. upper ear plate, 24a Circulation Area upper ear plate, 24b stagnant area upper ear plate, 24c unloads stream district upper ear plate, 25. lower ear plate, 26. outer cylindrical casing, 27. built-in boss, 28. lead kind of a mouth, 29.L shape gripper shoe, 30. fill kind of a device, 31. rear bearing sheet, 32. Circulation Area, 33. arc, 34. annulus, 35. Circular Plate, 36. stagnant area, 37. deep-slotted chip breaker, 38. moon-shaped plate, 39. unload the stream district, 40. unload kind of a mouth.
Embodiment
The design of present embodiment is applicable to the seeding of the smart amount of small particle diameter crop seed.
Below in conjunction with accompanying drawing the present invention is further explained explanation: a kind of strength integrated arranging small particle diameter crop seed precise seeder comprises left and right two seeding unit side plates 1, dispenser 2, kind case combination 3, seeding unit cylinder combination 4, seeding unit case 5 etc.Described seeding unit cylinder combination 4 connects with left and right seeding unit side plate 1 and is installed on the bearing block 7; The two ends of described dispenser 2 are installed on the left and right seeding unit side plate 1 by bolt-connection; The two ends of described kind of case combination 3 are fixed on the left and right seeding unit side plate 1 by bolt-connection; Described seeding unit case 5 be positioned at seeding unit cylinder combination 4 directly over, and be installed on the left and right seeding unit side plate 1 by bolt-connection.
Described seeding unit cylinder combination 4 comprises urceolus 11, inner core seam 12 and left and right two branch sleeves 13, sliding bearing 14, inner core baffle plate 6 and circlip 15.Inner core seam 12 is formed by inner core 12a, inner core side plate 12b, negative tube 12c and forward voltage diode 12d seam, and inner core 12a is divided into zone of positive pressure 9 and the negative pressuren zone 10 that does not communicate with the inner chamber of urceolus 11; Be processed with two through holes on the inner core side plate 12b, left and right two forward voltage diode 12d are welded on respectively left and right two inner core side plate 12b lower through-hole upper and by inner core side plate 12b and communicate with zone of positive pressure 9, and left and right two negative tube 12c are welded on respectively that left and right two inner core side plate 12b go up and the top through hole by inner core side plate 12b communicates with negative pressuren zone 10; Left and right two inner core side plate 12b weld with the two ends of inner core 12a respectively, and its circumferencial direction and left and right branch sleeve 13 are matched in clearance; Inner core baffle plate 6 is provided with two through holes, and is bolted with right seeding unit side plate 1, and right side negative tube 12c and right side forward voltage diode 12d are inserted in respectively in two through holes on the inner core baffle plate 6 to keep inner core seam 12 not rotate; Left and right two circlips 15 limit endwisely slipping of cylinder combination 4.Be processed with 9 row suckers on the urceolus 11, the outer wall of its inwall and inner core 12a is matched in clearance, urceolus 11 two ends connect with branch sleeve 13 by bolt, and branch sleeve 13 is installed on the sliding bearing 14, and the side of left end branch sleeve 13 connects with seeding unit sprocket wheel 8 by screw.
Described kind of case combination 3 comprises grain conductor 21, seed box 22, fills kind of device 30 and rear bearing sheet 31.The two ends of rear bearing sheet 31 are installed on the left and right seeding unit side plate 1 by bolt-connection, filling kind of device 30 is fixed on the rear bearing sheet 31 by bolt-connection, seed box 22 gets up with rear bearing sheet 31 usefulness bolt-connections by L shaped gripper shoe 29, grain conductor 21 1 ends are installed in leading on kind of the mouth of seed box 22, and the other end is installed on the stream kind hole 18 of filling kind of device 30.Described kind of the device 30 that fills comprises dividing plate 19, left and right two connecting plates 20, arc 33 and unload kind of a pin 17, unload 16,8 dividing plates 19 of kind of plate arc 33 is separated into 9 row, each row is provided with stream kind of hole 18, and each stream kind of hole 18 is corresponding with the sucker row on the urceolus 11 respectively; Two are unloaded kind pin 17 and are welded on respectively on the left and right connecting plate 20, and the deep-slotted chip breaker that unloads kind of plate 16 two ends is stuck in and unloads on kind of the pin 17.Described seed box 22 comprises outer cylindrical casing 26, built-in boss 27 and pilot pin 23, outer cylindrical casing 26 covers on the built-in boss 27, pilot pin 23 couples together the lower ear plate 25 of welding on the upper ear plate 24 of welding on the outer cylindrical casing 26 and the built-in boss 27, upper ear plate 24 comprises three upper ear plate 24a, 24b and 24c, be connected with lower ear plate 25 under seeding unit duty, pause mode and the state of being connected successively, upper ear plate 24a, 24b and 24c are welded on the outer wall lower end of outer cylindrical casing 26.Weld a not closed circle 34 on the lower surface of outer cylindrical casing 26.The bottom of built-in boss 27 outwards is bent into a deep-slotted chip breaker 37, deep-slotted chip breaker 37 bottoms are processed with one and unload kind of mouth 40 and 9 through holes, it is corresponding with 9 through holes that 9 of the bottom weldings of built-in boss 27 are led kind of mouth 28, irregular roundness ring flat-plate 35 be welded on deep-slotted chip breaker 37 above, and match with the anchor ring of closed circle 34 not; 3 moon-shaped plates 38 are welded on the two ends of Circular Plate 35 and unload an end of kind of mouth 40, and deep-slotted chip breaker 37 is separated into 3 zones, namely Circulation Area 32, stagnant area 36, unload stream district 39.
Described dispenser 2 is installed in the below of urceolus 11, and 9 mouths of charging seed on it are corresponding with 9 row suckers of urceolus 11 respectively.
The course of work of the present invention:
Cabbage type rape seed (the average geometric particle diameter is at 1.7-2.5mm) is poured in the seed box 22 into seed flow built-in boss 27 and lead the acceleration of kind of mouth 28 in seed box 22, the sucker that enters urceolus 11 through overcurrent kind hole 18 along grain conductor 21.Under the air pump effect, through malleation and the suction function of inner core both sides forward voltage diode 12d and negative tube 12c, at the inner zone of positive pressure that forms of inner core 12a, form negative pressuren zone between inner core and the urceolus; Urceolus rotates under the drive of seeding unit sprocket wheel 8 input powers continuously, sucker inside on the urceolus 11 is passed through negative pressuren zone and zone of positive pressure successively, when sucker goes to negative pressuren zone, sucker absorption single seed is rotated further under the suction-operated of negative pressure, when the sucker of urceolus 11 goes to zone of positive pressure, the seeding process is finished in seeding under the thrust of malleation.Finish after the sowing, will unload stream district upper ear plate 24c with pilot pin 29 and couple together with lower ear plate 25, draw off the interior seed of seed box; Then take away fill kind of district unload kind of plate 16, will fill that seed draws off in kind of the district.
In use there are three kinds of duties in seeding unit, and the one, seeding unit duty, the 2nd, seeding unit pause mode, the 3rd, the seeding unit state that quits work.Seed Uniform Flow under the seeding unit duty, seed flow is stagnated under the seeding unit pause mode, and seeding unit quits work and needs seed in the emptying seeding unit under the state.For satisfying above-mentioned three kinds of states, the relative position of taking to change outer cylindrical casing and built-in boss is realized.Concrete scheme is: under the duty, when pilot pin 23 couples together Circulation Area upper ear plate 24a and lower ear plate 25, kind of the hole of leading on the not closed area of closed circle 34 (about 140 ° of arcuate segments) and the built-in boss Circulation Area 32 does not coincide, and seed flow is in circulation status; Under the pause mode, pilot pin 23 is connected stagnant area upper ear plate 24b with lower ear plate 25, the not closed area of closed circle 34 (about 140 ° of arcuate segments) do not coincide with the stagnant area 36 of built-in boss, cut off the circulation path of seed, make the seed flow in the seed box be in the viscous flow state; Quit work under the state, pilot pin 23 will unload stream district upper ear plate 24c and be connected with lower ear plate 25, the not closed area of closed circle 34 (about 140 ° of arcuate segments) will not coincide with kind of the district 39 of unloading of built-in boss, seed in the seed box is drawn off, and takes away simultaneously to unload the seeds that kind of plate 16 will fill in kind of the device 30 and draw off.
Above embodiment is only unrestricted in order to the technical scheme of explanation invention; those of ordinary skill in the art is to be understood that; technical scheme of the present invention is made amendment or on an equal basis replacement; and do not break away from the spirit and scope of technical solution of the present invention, all should be encompassed in the protection domain of claim of the present invention.
Claims (4)
1. strength integrated arranging small particle diameter crop seed precise seeder, its feature comprises a left side, right two seeding unit side plates (1), dispenser (2), plant case combination (3), the combination of seeding unit cylinder (4) and seeding unit case (5), described seeding unit cylinder combination (4) comprises urceolus (11), inner core seam (12) and a left side, right two branch sleeves (13), sliding bearing (14), inner core baffle plate (6) and circlip (15), inner core seam (12) is by inner core (12a), inner core side plate (12b), negative tube (12c) and forward voltage diode (12d) seam form; Inner core (12a) is divided into zone of positive pressure (9) and the negative pressuren zone (10) that does not communicate with the inner chamber of urceolus (11); Inner core side plate (12b) is provided with two through holes, left and right two forward voltage diodes (12d) are welded on respectively on left and right two inner core side plates (12b), lower through-hole by inner core side plate (12b) communicates with zone of positive pressure (9), left and right two negative tubes (12c) are welded on respectively on left and right two inner core side plates (12b), and the top through hole by inner core side plate (12b) communicates with negative pressuren zone (10); Left and right two inner core side plates (12b) weld with the two ends of inner core (12a) respectively, and its circumferencial direction and left and right branch sleeve (13) are matched in clearance; Inner core baffle plate (6) is provided with two through holes, and be bolted with right seeding unit side plate (1), right side negative tube (12c) and right side forward voltage diode (12d) are inserted in respectively in two through holes on the inner core baffle plate (6) to keep inner core seam (12) not rotate; Left and right two circlips (15) limit endwisely slipping of cylinder combination (4); Urceolus (11) is provided with 9 row suckers, the outer wall adjacent of its inwall and inner core (12a) is matched in clearance, urceolus (11) two ends connect with branch sleeve (13) by bolt, branch sleeve (13) is installed on the sliding bearing (14), the branch sleeve on the seeding unit left side (13) connects with seeding unit sprocket wheel (8) by screw, and described seeding unit cylinder combination (4) connects with left and right seeding unit side plate (1) and is installed on the bearing block (7); Described dispenser (2) is installed in the below of urceolus (11), and its two ends are installed on the left and right seeding unit side plate (1) by bolt-connection; Described kind of case combination (3) comprises grain conductor (21), seed box (22), fills kind of a device (30) and rear bearing sheet (31), the two ends of rear bearing sheet (31) are installed on the left and right seeding unit side plate (1) by bolt-connection, fill kind of a device (30) and be fixed on the rear bearing sheet (31) by bolt-connection, seed box (22) is used bolt-connection by L shaped gripper shoe (29) and rear bearing sheet (31); Grain conductor (21) one ends are installed in leading on kind of the mouth of seed box (22), and the other end is installed on the stream kind hole (18) of filling kind of a device (30); Described seeding unit case (5) be positioned at seeding unit cylinder combination (4) directly over, be installed on the left and right seeding unit side plate (1) by bolt-connection.
2. strength integrated arranging small particle diameter crop seed precise seeder according to claim 1, it is characterized in that, described kind of the device (30) that fills comprises dividing plate (19), left and right two connecting plates (20), arc (33) and unload kind pin (17), unload kind of a plate (16), dividing plate (19) is separated into 9 row with arc (33), each row is provided with stream kind of hole (18), and stream kind of hole (18) is corresponding with the sucker row on the urceolus (11) respectively; Two are unloaded kind pin (17) and are welded on respectively on the left and right connecting plate (20), and the deep-slotted chip breaker that unloads kind of a plate (16) two ends is stuck in and unloads on kind of the pin (17).
3. strength integrated arranging small particle diameter crop seed precise seeder according to claim 1, it is characterized in that, described seed box (22) comprises outer cylindrical casing (26), built-in boss (27) and pilot pin (23), outer cylindrical casing (26) covers on the built-in boss (27), pilot pin 23) upper ear plate (24) of outer cylindrical casing (26) is connected with the lower ear plate (25) of built-in boss (27); Upper ear plate (24) comprises three upper ear plates (24a), (24b) and (24c), be welded on the outer wall lower end of outer cylindrical casing (26), be connected with lower ear plate (25) successively, weld a not closed circle (34) on the lower surface of outer cylindrical casing (26); The bottom of built-in boss (27) outwards is bent into a deep-slotted chip breaker (37), the bottom of deep-slotted chip breaker (37) is provided with one and unloads kind of a mouth (40) and 9 through holes, the bottom welding of built-in boss (27) has 9 to lead kind of a mouth (28), and corresponding with 9 through holes, Circular Plate (35) be welded on deep-slotted chip breaker (37) above, and match with the anchor ring of closed circle (34) not; 3 moon-shaped plates (38) are welded on the two ends of Circular Plate (35) and unload an end of kind of a mouth (40), deep-slotted chip breaker (37) is separated into Circulation Area (32), stagnant area (36) and unloads stream district (39).
4. strength integrated arranging small particle diameter crop seed precise seeder according to claim 1 is characterized in that, 9 mouths of charging seed on the described dispenser (2) are corresponding with 9 row suckers of urceolus (11) respectively.
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| CN103749049A (en) * | 2014-01-22 | 2014-04-30 | 华中农业大学 | Internal seed filled pneumatic line type accurate seed sowing device |
| CN105379457A (en) * | 2015-12-10 | 2016-03-09 | 泰州常发农业工程技术有限公司 | Rice straw returning seeder and rice straw returning seeding method |
| CN105746053A (en) * | 2016-04-07 | 2016-07-13 | 湖北永祥农机装备有限公司 | Centralized seed sowing device of seeder |
| CN105850301A (en) * | 2016-04-14 | 2016-08-17 | 日照中盛集团股份有限公司 | Precision seeding device |
| CN106416536A (en) * | 2016-10-13 | 2017-02-22 | 安徽农业大学 | Chute and suction hole combined type precision seed-metering device |
| CN106576527A (en) * | 2016-11-07 | 2017-04-26 | 华中农业大学 | Rice and wheat precision seeding device controlled by one machine and multiple rows |
| CN107896588A (en) * | 2017-12-29 | 2018-04-13 | 山东农业大学 | The accurate collection row's device of seed aspiration and its method of work with leakage kind detection function |
| CN111837523A (en) * | 2019-05-14 | 2020-10-30 | 金帮国 | Spherical seed dual-purpose precision seed sowing device |
| CN112221975A (en) * | 2020-09-23 | 2021-01-15 | 安徽省农业科学院作物研究所 | Sesame multiple-layered cleaning and sorting machine |
| CN113303055A (en) * | 2021-05-25 | 2021-08-27 | 江苏大学 | Continuous hole sowing control system and method for air suction drum type seed sowing device |
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