CN102986344B - 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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- CN102986344B CN102986344B CN201110272079.XA CN201110272079A CN102986344B CN 102986344 B CN102986344 B CN 102986344B CN 201110272079 A CN201110272079 A CN 201110272079A CN 102986344 B CN102986344 B CN 102986344B
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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 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, in 3mm, belongs to small particle diameter kind subcategory.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.Wherein sowing of vegetable area 1795.37 ten thousand hm
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 all exceed 1/3 of world's total amount, and show 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.
Small particle diameter seed particle size is little, good fluidity, realizes defective ejaculation amount sowing difficulty large.At present domestic for the general traditional planting patterns that adopts seedling raising and transplanting or first manually slip kind, broadcast sowing rear thinning, final singling of small particle diameter seed plantation, there is 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 small particle diameter precision drilling mainly comprises two kinds of mechanical type and pneumatic types.Mechanical seed sowing device is taking indent type, band clip as main, and main deficiency is that the percentage of damage of seed is high, and type hole plug is serious, precision drilling poor effect etc.; Pneumatic seeding apparatus is to get taking air-flow as carrier completes kind, protect kind, charge seed, and has seed damage littlely, to not advantages of higher of seed shape requirement, is the choose reasonable of current small particle diameter crop seeding method.
Pneumatic type small particle diameter seeding unit mostly in the market is single file, production efficiency is low, integrated arranging (a device multirow formula) is common is pin suction, although this type of seeding unit can be realized the seeding of essence amount, but open kind case has determined such seeding unit and has had in process of production kind with Louing, needed kind to measure the deficiencies such as large, be not suitable for 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, malleation seeding, reduce seeding unit tandem working link, not only efficiently solve cracky, susceptible to plugging technical barrier that small particle diameter crop occurs in precision drilling process, also realized the seeding of centralized essence amount, reach seed, simplification final singling and the thinning process of saving, reduce production costs, the object of raising labour efficiency.
The present invention realizes by following technical proposal, and 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 arranged on bearing block 7; Described dispenser 2 is arranged on the below of urceolus 11, and its two ends are arranged on left and right seeding unit side plate 1 by bolt-connection; The two ends of described kind case combination 3 are fixed on 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 arranged on 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 the inner chamber of urceolus 11 zone of positive pressure 9 and the negative pressuren zone 10 that do not communicate; On inner core side plate 12b, be processed with two through holes, left and right two forward voltage diode 12d are welded on respectively left and right two inner core side plate 12b above and communicate with zone of positive pressure 9 by the lower through-hole of inner core side plate 12b, and left and right two negative tube 12c are welded on respectively left and right two inner core side plate 12b above and communicate with negative pressuren zone 10 by the top through hole of inner core side plate 12b; 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 inner core baffle plate 6 to keep inner core seam 12 not rotate; Left and right two circlips 15 limit sliding axially of cylinder combination 4.On urceolus 11, be processed with 9 row suckers, 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 arranged on 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 arranged on left and right seeding unit side plate 1 by bolt-connection, filling kind of device 30 is fixed on rear bearing sheet 31 by bolt-connection, seed box 22 gets up with rear bearing sheet 31 use bolt-connections by L shaped gripper shoe 29, grain conductor 21 one end are arranged on leading on kind of mouth of seed box 22, and the other end is arranged 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 urceolus 11 respectively; Two are unloaded kind pin 17 and are welded on respectively on 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 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 built-in boss 27, pilot pin 23 couples together the lower ear plate 25 of welding on the upper ear plate of welding on outer cylindrical casing 26 24 and built-in boss 27, upper ear plate 24 comprises three upper ear plate 24a, 24b and 24c, under seeding unit duty, pause mode and the state of quitting work, be connected with lower ear plate 25 successively, upper ear plate 24a, 24b and 24c are welded on the outer wall lower end of outer cylindrical casing 26.On the lower surface of outer cylindrical casing 26, weld a not closed circle 34.The bottom of built-in boss 27 is outwards bent into a deep-slotted chip breaker 37, deep-slotted chip breaker 37 bottoms are processed with one and unload 40 and 9 through holes of kind of mouth, 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 the one end of unloading kind of mouth 40, deep-slotted chip breaker 37 are separated into 3 regions, i.e. Circulation Area 32, stagnant area 36, Xie Liu district 39.
9 mouths of charging seed on 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 and plants and two links of seeding, has simplified the structure of seeding unit.
2, the present invention adopts negative pressure to inhale kind, malleation is charged seed, and has avoided because of the broadcast leakage that small-sized seed causes the obstruction of sucker, disconnected bar phenomenon; Realize the precision drilling of small particle diameter crop seed simple grain, in seeding process, without damaged, saved seed, 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.
Brief description of the 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 combines main TV structure schematic diagram; Fig. 4-b: of the present invention kind of case combines 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.
In figure, numbering is as follows: 1. seeding unit side plate, 2. dispenser, 3. kind of case combination, 4. seeding unit cylinder combines 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, 12a inner core, 12b inner core side plate, 12c negative tube, 12d forward voltage diode, 13. branch sleeves, 14. sliding bearings, 15. circlips, 16. unload kind of a plate, 17. unload kind of a pin, 18. stream kind of holes, 19. dividing plates, 20. connecting plates, 21. grain conductors, 22. seed boxs, 23. pilot pins, 24. upper ear plates, 24a Circulation Area upper ear plate, 24b stagnant area upper ear plate, 24cXie Liu district upper ear plate, 25. lower ear plates, 26. outer cylindrical casings, 27. built-in boss, 28. lead kind of a mouth, 29.L shape gripper shoe, 30. fill kind of a device, 31. rear bearing sheets, 32. Circulation Areas, 33. arcs, 34. annulus, 35. Circular Plate, 36. stagnant areas, 37. deep-slotted chip breakers, 38. moon-shaped plates, 39.Xie Liu district, 40. unload kind of a mouth.
Embodiment
The design of the present embodiment is applicable to the seeding of small particle diameter crop seed essence amount.
Below in conjunction with accompanying drawing, the present invention is further explained to 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 arranged on bearing block 7; The two ends of described dispenser 2 are arranged on left and right seeding unit side plate 1 by bolt-connection; The two ends of described kind case combination 3 are fixed on 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 arranged on 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 the inner chamber of urceolus 11 zone of positive pressure 9 and the negative pressuren zone 10 that do not communicate; On inner core side plate 12b, be processed with two through holes, left and right two forward voltage diode 12d are welded on respectively left and right two inner core side plate 12b above and communicate with zone of positive pressure 9 by the lower through-hole of inner core side plate 12b, and left and right two negative tube 12c are welded on respectively left and right two inner core side plate 12b above and communicate with negative pressuren zone 10 by the top through hole of inner core side plate 12b; 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 inner core baffle plate 6 to keep inner core seam 12 not rotate; Left and right two circlips 15 limit sliding axially of cylinder combination 4.On urceolus 11, be processed with 9 row suckers, 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 arranged on 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 arranged on left and right seeding unit side plate 1 by bolt-connection, filling kind of device 30 is fixed on rear bearing sheet 31 by bolt-connection, seed box 22 gets up with rear bearing sheet 31 use bolt-connections by L shaped gripper shoe 29, grain conductor 21 one end are arranged on leading on kind of mouth of seed box 22, and the other end is arranged 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 urceolus 11 respectively; Two are unloaded kind pin 17 and are welded on respectively on 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 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 built-in boss 27, pilot pin 23 couples together the lower ear plate 25 of welding on the upper ear plate of welding on outer cylindrical casing 26 24 and built-in boss 27, upper ear plate 24 comprises three upper ear plate 24a, 24b and 24c, under seeding unit duty, pause mode and the state of quitting work, be connected with lower ear plate 25 successively, upper ear plate 24a, 24b and 24c are welded on the outer wall lower end of outer cylindrical casing 26.On the lower surface of outer cylindrical casing 26, weld a not closed circle 34.The bottom of built-in boss 27 is outwards bent into a deep-slotted chip breaker 37, deep-slotted chip breaker 37 bottoms are processed with one and unload 40 and 9 through holes of kind of mouth, 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 the one end of unloading kind of mouth 40, deep-slotted chip breaker 37 are separated into 3 regions, i.e. Circulation Area 32, stagnant area 36, Xie Liu district 39.
Described dispenser 2 is arranged on 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 (average geometric particle diameter is at 1.7-2.5mm) is poured in seed box 22 into seed flow built-in boss 27 and lead the acceleration of kind of mouth 28, the sucker that enters urceolus 11 through overcurrent kind hole 18 along grain conductor 21 in seed box 22.Under 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, between inner core and urceolus, form negative pressuren zone; Urceolus rotates continuously under the drive of seeding unit sprocket wheel 8 input powers, sucker inside on urceolus 11 is successively through negative pressuren zone and zone of positive pressure, in the time that sucker goes to negative pressuren zone, under the suction-operated of negative pressure, sucker absorption single seed is rotated further, in the time that the sucker of urceolus 11 goes to zone of positive pressure, seeding under the thrust of malleation, completes seeding process.After completing sowing, couple together with pilot pin 29Jiang Xieliu district upper ear plate 24c and lower ear plate 25, draw off seed in seed box; That then takes away Chong Zhong district unloads kind of plate 16, and in Jiang Chongzhong district, seed draws off.
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 seeding unit duty, under seeding unit pause mode, seed flow is stagnated, and seeding unit quits work under state and needs the seed in emptying seeding unit.For meeting above-mentioned three kinds of states, take the relative position that changes outer cylindrical casing and built-in boss to realize.Concrete scheme is: under duty, when pilot pin 23 couples together Circulation Area upper ear plate 24a and lower ear plate 25, the not closed area of closed circle 34 (approximately 140 ° of arcuate segments) do not coincide with kind of the hole of leading on built-in boss Circulation Area 32, and seed flow is in circulation status; Under 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 (approximately 140 ° of arcuate segments) do not coincide with the stagnant area 36 of built-in boss, cut off the circulation path of seed, make seed flow in seed box in viscous flow state; Quit work under state, pilot pin 23Jiang Xieliu district upper ear plate 24c is connected with lower ear plate 25, the not closed area of closed circle 34 (approximately 140 ° of arcuate segments) will not coincide with built-in boss Xie Zhong district 39, seed in seed box is drawn off, and takes away to unload kind of plate 16 seed filling in kind of device 30 is drawn off simultaneously.
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 modified or replaced on an equal basis; and do not depart 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 (1)
1. a strength integrated arranging small particle diameter crop seed precise seeder, comprise 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 the inner chamber of urceolus (11) zone of positive pressure (9) and negative pressuren zone (10) that do not communicate, 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), it is upper that left and right two negative tubes (12c) are welded on respectively left and right two inner core side plates (12b), communicates with negative pressuren zone (10) by the top through hole of inner core side plate (12b), 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 inner core baffle plate (6) to keep inner core seam (12) not rotate, left and right two circlips (15) limit sliding axially 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 arranged on sliding bearing (14), the branch sleeve (13) on the seeding unit left side 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 arranged on bearing block (7), described dispenser (2) is arranged on the below of urceolus (11), and its two ends are arranged on 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 arranged on left and right seeding unit side plate (1) by bolt-connection, fill kind of a device (30) and be fixed on rear bearing sheet (31) above by bolt-connection, seed box (22) is by L shaped gripper shoe (29) and bolt-connection for rear bearing sheet (31), grain conductor (21) one end is arranged on leading on kind of mouth of seed box (22), and the other end is arranged 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 arranged on left and right seeding unit side plate (1) by bolt-connection, 9 mouths of charging seed on described dispenser (2) are corresponding with 9 row suckers of urceolus (11) respectively, 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) becomes 9 row by arc (33) equidistant separation and is arranged on arc (33) inner side, each row is provided with stream kind of hole (18), and stream kind of a hole (18) is arranged on arc (33) inner side corresponding with the sucker row on urceolus (11) respectively, two are unloaded kind of a pin (17) and are welded on respectively on left and right connecting plate (20), left and right connecting plate (20) symmetry is arranged on arc (33) inner side, and the deep-slotted chip breaker that unloads kind of a plate (16) two ends is stuck in and unloads on kind of pin (17), described seed box (22) comprises outer cylindrical casing (26), built-in boss (27) and pilot pin (23), it is upper that outer cylindrical casing (26) covers on built-in boss (27), and pilot pin (23) is connected the upper ear plate of outer cylindrical casing (26) (24) 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, lower ear plate (25) is arranged on built-in boss (27) circumference outer, welds a not closed circle (34) on the lower surface of outer cylindrical casing (26), the bottom of built-in boss (27) is outwards 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 one end of kind of a mouth (40), and deep-slotted chip breaker (37) is separated into Circulation Area (32), He Xieliu district, stagnant area (36) (39).
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| CN201110272079.XA CN102986344B (en) | 2011-09-15 | 2011-09-15 | Pneumatic concentrate-discharging small-particle-size crop seed precise seed-metering device |
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| CN201110272079.XA CN102986344B (en) | 2011-09-15 | 2011-09-15 | Pneumatic concentrate-discharging small-particle-size crop seed precise seed-metering device |
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| CN102986344B true CN102986344B (en) | 2014-11-05 |
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| CN103749049B (en) * | 2014-01-22 | 2016-04-20 | 华中农业大学 | Inside fill kind of a strength integrated arranging precise seeder |
| CN105379457B (en) * | 2015-12-10 | 2017-10-27 | 常州常发农业装备工程技术研究有限公司 | A kind of rice straw returning to the field seeder and rice straw returning to the field 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 |
| CN105850301B (en) * | 2016-04-14 | 2018-09-21 | 山东中天盛科自动化设备有限公司 | A kind of precision seed metering 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 |
| CN106576527B (en) * | 2016-11-07 | 2018-10-09 | 华中农业大学 | One device multirow electrical control rice and kernel seed placing device |
| CN107896588B (en) * | 2017-12-29 | 2023-07-21 | 山东农业大学 | Seed gas suction essence dense discharging device with seed leakage detection function and working method thereof |
| CN111837523A (en) * | 2019-05-14 | 2020-10-30 | 金帮国 | Spherical seed dual-purpose precision seed sowing device |
| CN112221975B (en) * | 2020-09-23 | 2021-08-24 | 安徽省农业科学院作物研究所 | Sesame multiple-layered cleaning and sorting machine |
| CN113303055B (en) * | 2021-05-25 | 2022-05-20 | 江苏大学 | Continuous hole-seeding control system and method for air-suction drum-type seed sowing device |
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| GB2229616A (en) * | 1989-03-10 | 1990-10-03 | Specialised Harvesting Service | Improvements in or relating to seed dispensing apparatus |
| FR2813160B1 (en) * | 2000-08-31 | 2002-10-11 | Const Agricoles Etmetallurgiqu | SEED DISPENSING DEVICE FOR PRECISION SEEDER |
| CN101496470B (en) * | 2009-03-12 | 2011-06-01 | 华中农业大学 | Pneumatic type precision seeding machine for planting test-tube potato |
| CN102106211B (en) * | 2011-01-10 | 2012-02-01 | 淮海工学院 | Precise seeds sowing device for growing seedlings of aperture disk |
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