CN103931312A - Pneumatic expandable combined precision seeder - Google Patents
Pneumatic expandable combined precision seeder Download PDFInfo
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- CN103931312A CN103931312A CN201410172433.5A CN201410172433A CN103931312A CN 103931312 A CN103931312 A CN 103931312A CN 201410172433 A CN201410172433 A CN 201410172433A CN 103931312 A CN103931312 A CN 103931312A
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Abstract
The invention relates to a pneumatic expandable combined precision seeder, which comprises a seed shunting system, a seed precise seeding system, a pneumatic system and a feedback system. Compared with the prior art, the pneumatic expandable combined precision seeder has the advantages that seeds are subjected to twice shunting, the pneumatic system is used for blowing and pressuring the seed shunting system, and an air suction principle is adopted in the seed precise seeding system, so that the precise seeding speed can be increased, the stability is high, and the seed leakage rate and re-seeding rate are low. Moreover, the precision seeder can be combined by expanding, so that the size of the seeder can be adjusted in order to adapt to seeding in plots of different scales. The feedback system can be used for detecting and analyzing the air pressure in the precise seeding system through a sensor, so that the air pressure at each place is adjusted automatically, and the efficiency and stability of precision seeding are ensured. The pneumatic expandable combined precision seeder has good precise seeding effects on various crop seeds, single-seed and single-hole seeding can be realized, and high seeding efficiency is achieved. Moreover, the size of the seeder can be adjusted specific to the sizes of different plots, so that the precision seeder is high in adaptability and is suitable for various land cultivated occasions.
Description
Technical field
The present invention relates to a kind of sower, especially relate to a kind of pneumatic type and can expand combination precision planter, belong to agricultural planting sowing field.
Background technology
At present, the a large amount of sowers that use of China, can be divided into two large classes: (1) one is common kind machine, the sower of the types such as hill-drop planter, this class sower cannot carry out precise sowing to crop seeds, cause the waste of a large amount of expensive seeds, and greatly unfavorable to later stage crop growth.(2) common precision planter, this class sower has been saved seed relatively, but efficiency is lower, and uneven sowing is even, can not carry out for the field of different scales size.
Summary of the invention
The present invention is exactly not good in order to overcome existing sower precision drilling, seed waste is more, and efficiency is low, and the non-adjustable deficiency that waits of scale, and provide a kind of pneumatic type can expand combination precision planter, not only Precision Seeding effect of this precision planter is better, can reach simple grain list bunch planting kind, and sowing efficiency is high, Precision Seeding stable performance, and for the size of the plot capable of regulating sowers of different sizes, strong adaptability, is applicable to multiple arable land occasion.
Object of the present invention can be achieved through the following technical solutions:
A kind of pneumatic type can be expanded combination precision planter, comprises seed separate system, seed Precision Seeding system and baric systerm,
Described seed separate system comprises kind of a case, first order seed separator, one-level grain conductor, secondary seed separator and secondary grain conductor, described first order seed separator is arranged on the outlet of kind of case, kind of the mouth that goes out of first order seed separator connects at least one one-level grain conductor simultaneously, the outlet of one-level grain conductor is connected respectively to the seed inlet of secondary seed separator, kind of the mouth that goes out of secondary seed separator connects at least one secondary grain conductor simultaneously, and seed separate system carries out two level shunts to the seed in kind of case;
Described seed Precision Seeding system comprises Precision Seeding separator and soil plough, and the seed inlet of described Precision Seeding separator is connected with secondary grain conductor, and acceptance by the seed flowing out after two level shunts, goes out kind of mouth and is connected with soil plough from kind of case;
Described baric systerm comprises blower fan, air flow divider, one-level gas blow pipe, secondary gas blow pipe and air intake duct, described fan outlet connects respectively one end of one-level gas blow pipe, secondary gas blow pipe and air intake duct after by air flow divider, the one-level gas blow pipe other end is connected with first order seed separator, the secondary gas blow pipe other end is connected with each secondary seed separator, accelerate point Flow Velocity of seed separate system by air-blowing mode, the air intake duct other end is connected with each Precision Seeding separator, in Precision Seeding separator, produce negative pressure by air-breathing making, make seed monoseeding.
Precision planter also comprises reponse system, described reponse system comprises air pressure probe, backfeed loop and controller, described air pressure probe is located at Precision Seeding separator inside, and connect controller by backfeed loop, Precision Seeding separator internal pressure conditions is fed back to controller, described controller is connected with blower fan and air flow divider respectively, is controlling baric systerm air pressure size and throughput everywhere.
Described first order seed current divider is identical with the structure of secondary seed current divider, adopt air-blowing and gravity mode to realize the shunting of seed, concrete structure is: comprise inside and outside sheathed inner chamber and exocoel, the entrance of inner chamber is seed inlet, the bottom of inner chamber offers 1～8 interior grain conductor that extends to exocoel outside, each interior grain conductor opens or closes separately, and to expand the scale of combination precision planter, one-level gas blow pipe or secondary gas blow pipe are connected with inner chamber.
Described Precision Seeding separator comprises left box body, right case, rotation seeds sucker, power transmission shaft, fragmenting plate and seed retaining plate;
Described left box body and right case enclose formation whole box body, and the below of right case offers planting hole, this planting hole be positioned at soil plough directly over;
Described rotation seeds sucker is located between left box body and right case, described left box body forms negative pressure cavity with rotation seeds sucker, and described right case forms planting chamber with rotation seeds sucker, and negative pressure cavity is communicated with air intake duct, form negative pressure, planting chamber is communicated with secondary grain conductor;
Described power transmission shaft one end is connected with dynamic power machine, and the other end is through being connected with rotation seeds sucker after left box body, and driven rotary seeds sucker rotates;
On described rotation seeds sucker, offer and be arranged in circle-shaped suction hole;
Described fragmenting plate is located at the below of left box body, and with rotation seeds sucker plane contact, in the time of the rotation of rotation seeds sucker, fragmenting plate and the mutual airtight slip of rotation seeds sucker,
Described seed retaining plate is located at the below of right case, stops that seed unnecessary in planting chamber drops in planting hole;
Negative pressure in negative pressure cavity is adsorbed onto on the suction hole on rotation seeds sucker the seed in planting chamber one by one, and in the time that seed runs to fragmenting plate place with suction hole, seed is no longer subject to suction, drops in soil plough from planting hole by gravity.
Described suction hole size is less than the particle size of seed, and meets and on each suction hole, only adsorb a seed.
The shape of described fragmenting plate meets it can at least cover a suction hole.
Between described power transmission shaft and left box body, be provided with sealing ring.
Described air pressure probe is inserted in negative pressure cavity.
Described secondary gas blow pipe connects the air blowing isocon identical with secondary seed separator number by tube connector simultaneously, and each air blowing isocon is connected separately with each secondary seed separator respectively;
Described air intake duct connects the air-breathing isocon identical with Precision Seeding separator number by tube connector simultaneously, and each air-breathing isocon is connected separately with each Precision Seeding separator respectively.
Described controller is connected with supervisory control desk by bus, by supervisory control desk steering controller.
Compared with prior art, the invention has the beneficial effects as follows:
The present invention by twice shunting, adopts baric systerm that seed separate system is blown and pressurizeed therebetween in seed, and seed Precision Seeding system adopts aspiration principle, can improve Precision Seeding speed, the seed of proportion of crop planting is evenly distributed, joint kind of high yield, good stability, leakage kind and replay rate are low.And the present invention can expand combination, thereby adjust sower size and be adapted to the plot sowing of different scales.In the present invention, reponse system can be detected and be analyzed air pressure size in Precision Seeding system by sensor, thereby automatically adjusts air pressure size everywhere, ensures efficiency and the stability of precise sowing.The present invention is to various crop seeds, and not only Precision Seeding effect is better, can reach simple grain list bunch planting kind, and sowing efficiency is high, and for the size of the big or small capable of regulating sower in different plot, strong adaptability, is applicable to multiple arable land occasion.
Brief description of the drawings
Fig. 1 is that the pneumatic type in embodiment 1 can be expanded combination precision planter overall structure schematic diagram;
Fig. 2 is that the pneumatic type in embodiment 2 can be expanded combination precision planter overall structure schematic diagram;
Fig. 3 is that the pneumatic type in embodiment 3 can be expanded combination precision planter overall structure schematic diagram;
Fig. 4 is the main TV structure schematic diagram of Precision Seeding separator;
Fig. 5 is the A-A face sectional structure schematic diagram of Fig. 4;
Fig. 6 is the B-B face sectional structure schematic diagram of Fig. 4;
Fig. 7 is the front view of first order seed current divider or secondary seed current divider;
Fig. 8 is the vertical view of first order seed current divider or secondary seed current divider.
Label in Fig. 1-8: 1. supervisory control desk, 2. bus, 3. controller, 4. air-blower control line, 5. blower fan, 6. air flow divider, 7. one-level gas blow pipe, 8. secondary gas blow pipe, 9. air intake duct, 10. air blowing isocon, 11. tube connectors, 12. kinds of casees, 13. first order seed current dividers, 14. one-level grain conductors, 15. secondary seed current dividers, 16. air-breathing isocons, 17. secondary grain conductors, 18. soil ploughs, 19. Precision Seeding separators, 20. air pressure sense lines, 21. air pressure probes, 22. backfeed loops, 23. left box bodies, 24. power transmission shafts, 25. sealing rings, 26. rotation seeds suckers, 27. fragmenting plates, 28. suction holes, 29. seed retaining plates, 30. right cases, 31. nuts, 32. pads, 33. planting holes.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment
A kind of pneumatic type can be expanded combination precision planter, as shown in Figure 1, comprises seed separate system, seed Precision Seeding system, baric systerm and reponse system.
Seed separate system comprises kind of case 12, first order seed separator 13, one-level grain conductor 14, secondary seed separator 15 and secondary grain conductor 17, first order seed separator 13 is arranged on the outlet of kind of case 12, kind of the mouth that goes out of first order seed separator 13 connects at least one one-level grain conductor 14 simultaneously, the outlet of one-level grain conductor 14 is connected respectively to the seed inlet of secondary seed separator 15, kind of the mouth that goes out of secondary seed separator 15 connects at least one secondary grain conductor 17 simultaneously, and seed separate system carries out two level shunts to the seed in kind of case 12;
Seed Precision Seeding system comprises Precision Seeding separator 19 and soil plough 18, and the seed inlet of Precision Seeding separator 19 is connected with secondary grain conductor 17, and acceptance by the seed flowing out after two level shunts, goes out kind of mouth and is connected with soil plough 18 from kind of case 12;
Baric systerm comprises blower fan 5, air flow divider 6, one-level gas blow pipe 7, secondary gas blow pipe 8 and air intake duct 9, blower fan 5 air outlets are by the rear one end that connects respectively one-level gas blow pipe 7, secondary gas blow pipe 8 and air intake duct 9 of air flow divider 6, one-level gas blow pipe 7 other ends are connected with first order seed separator 13, secondary gas blow pipe 8 connects the air blowing isocon 10 identical with secondary seed separator 15 numbers by tube connector 11 simultaneously, and each air blowing isocon 10 is connected separately with each secondary seed separator 15 respectively; Accelerate point Flow Velocity of seed separate system by air-blowing mode, air intake duct 9 connects the air-breathing isocon 16 identical with Precision Seeding separator 19 numbers by tube connector 11 simultaneously, each air-breathing isocon 16 is connected separately with each Precision Seeding separator 19 respectively, by the air-breathing interior generation negative pressure of Precision Seeding separator 19 that makes, make seed monoseeding, be used for adjusting and lead kind of efficiency and improve Precision Seeding stability; The seed of planting in case 12 drops in the first order seed current divider 13 of taper of kind of case 12 bottoms, accelerate again point Flow Velocity of seed by one-level gas blow pipe 7, and then seed is entered in the secondary seed current divider 15 of taper by one-level grain conductor 14, repeat said process, make seed enter into Precision Seeding separator 19, complete seed shunting, wherein the shunting of firsts and seconds seed all adopts air-sweeping type, divides Flow Velocity to accelerate seed.
Reponse system comprises air pressure probe 21, backfeed loop 22 and controller 3, air pressure probe 21 is located at Precision Seeding separator 19 inside, and connect controller 3 by air pressure sense line 20, backfeed loop 22, air pressure probe 21 is measured the vacuum magnitude in Precision Seeding separator, signal is transferred in controller 3, controller 3 is by air-blower control line 4 connecting fans 5, and then control the throughput of blower fan 5 rotating speeds sizes and air blowing, suction line, shunt efficiency and Precision Seeding stability thereby accurately control.In the time of work, this precision planter is driven by engine, adds required seed in kind of case 12, and by baric systerm, seed separate system and seed Precision Seeding system enter seed in soil, and accurately control speed of drilling and stability by reponse system.
Controller 3 is connected with supervisory control desk 1 by bus 2, by supervisory control desk 1 steering controller 3.
As shown in Fig. 4～Fig. 6, Precision Seeding separator 19 comprises left box body 23, right case 30, rotation seeds sucker 26, power transmission shaft 24, fragmenting plate 27 and seed retaining plate 29; Left box body 23 encloses formation whole box body with right case 30, and the below of right case 30 offers planting hole 33, this planting hole 33 be positioned at soil plough 18 directly over; Rotation seeds sucker 26 is located between left box body 23 and right case 30, left box body 23 forms negative pressure cavity with rotation seeds sucker 26, and right case 30 forms planting chamber with rotation seeds sucker 26, and negative pressure cavity is communicated with air intake duct 9, form negative pressure, planting chamber is communicated with secondary grain conductor 17; Power transmission shaft 24 one end are connected with dynamic power machine, and the other end is threaded with rotation seeds sucker 26 through left box body 23 is rear, and fastening by pad 32 and nut 31, and driven rotary seeds sucker 26 rotates; On rotation seeds sucker 26, offer and be arranged in circle-shaped suction hole 28; Fragmenting plate 27 is located at the below of left box body 23, and with rotation seeds sucker 26 plane contact, in the time that rotation seeds sucker 26 rotates, fragmenting plate 27 and the mutual airtight slip of rotation seeds sucker 26, seed retaining plate 29 is located at the below of right case 30, stop that seed unnecessary in planting chamber drops in planting hole 33, and Precision Seeding performance is exerted an influence; Suction hole 28 sizes are less than the particle size of seed, and meet and on each suction hole 28, only adsorb a seed.The shape of fragmenting plate 27 meets it can at least cover a suction hole 28, such as: fragmenting plate 27 and the contact-making surface shape of rotation seeds sucker 26 can be rectangle, square, trapezoidal, oval, fan-shaped etc., best scheme is fan-shaped, preferably can cover a suction hole, require relatively low to the flatness of seeds sucker like this.Between power transmission shaft 24 and left box body 23, be provided with sealing ring 25, with anti-gas-leak.Air pressure probe 21 is inserted in negative pressure cavity.Negative pressure in negative pressure cavity is adsorbed onto on the suction hole 28 on rotation seeds sucker 26 seed in planting chamber one by one, in the time that seed runs to fragmenting plate 27 place with suction hole 28, seed is no longer subject to suction, drop in soil plough 18 from planting hole 33 by gravity, and be admitted in soil, and then complete Precision Seeding process.
As Fig. 7, shown in Fig. 8, first order seed current divider 13 is identical with the structure of secondary seed current divider 15, adopt air-blowing and gravity mode to realize the shunting of seed, concrete structure is: comprise inside and outside sheathed inner chamber and exocoel, the entrance of inner chamber is seed inlet, the bottom of inner chamber offers 1～8 interior grain conductor that extends to exocoel outside, each interior grain conductor opens or closes separately, in case seed is unrestrained, wherein the work tap hole of seed current divider is opened, and inoperative tap hole is closed, with the scale of expansion combination precision planter, one-level gas blow pipe 7 or secondary gas blow pipe 8 are connected with inner chamber.Can connect at most eight single group of 8 one-level grain conductors, 14 expansion combination by seed separate system, and then adjust the size of precision seeder, adjust for the plot of different scales size.
This precision planter is driven by driving power tractor, operating personnel control baric systerm by supervisory control desk 1, thereby regulate secondary seed separate system and seed Precision Seeding system, wherein seed separate system and seed Precision Seeding system can be expanded combination, thereby adapt to different scales size plot Precision Seeding crops, then pass through the automatic regulation function of reponse system, ensureing under the uniformity of Precision Seeding and the prerequisite of stability, the efficiency that greatly improves Precision Seeding, completes precision drilling.
With reference to figure 1, in the present embodiment, it is three groups of expansion structures that pneumatic type can be expanded combination precision planter, kind of the mouth that goes out that is first order seed separator 13 connects 3 one-level grain conductors 14 simultaneously, the outlet of one-level grain conductor 14 is connected respectively to the seed inlet of 3 secondary seed separators 15, and kind of the mouth that goes out of secondary seed separator 15 connects 5 secondary grain conductors 17 simultaneously.
Embodiment 2
As shown in Figure 2, difference from Example 1 is, pneumatic type can be expanded combination precision planter for single group expansion structure, kind of the mouth that goes out that is first order seed separator 13 connects 1 one-level grain conductor 14, the outlet of one-level grain conductor 14 is connected to the seed inlet of 1 secondary seed separator 15, and kind of the mouth that goes out of secondary seed separator 15 connects 5 secondary grain conductors 17 simultaneously.
Embodiment 3
As shown in Figure 3, difference from Example 1 is, it is five groups of expansion structures that pneumatic type can be expanded combination precision planter, kind of the mouth that goes out that is first order seed separator 13 connects 5 one-level grain conductors 14, the outlet of one-level grain conductor 14 is connected to the seed inlet of 5 secondary seed separators 15 simultaneously, and kind of the mouth that goes out of secondary seed separator 15 connects 5 secondary grain conductors 17 simultaneously.
The above-mentioned description to embodiment is can understand and use invention for ease of those skilled in the art.Person skilled in the art obviously can easily make various amendments to these embodiment, and General Principle described herein is applied in other embodiment and needn't passes through performing creative labour.Therefore, the invention is not restricted to above-described embodiment, those skilled in the art are according to announcement of the present invention, and not departing from improvement and the amendment that category of the present invention makes all should be within protection scope of the present invention.
Claims (10)
1. pneumatic type can be expanded a combination precision planter, it is characterized in that, comprises seed separate system, seed Precision Seeding system and baric systerm,
Described seed separate system comprises kind of a case (12), first order seed separator (13), one-level grain conductor (14), secondary seed separator (15) and secondary grain conductor (17), described first order seed separator (13) is arranged on the outlet of kind of a case (12), kind of the mouth that goes out of first order seed separator (13) connects at least one one-level grain conductor (14) simultaneously, the outlet of one-level grain conductor (14) is connected respectively to the seed inlet of secondary seed separator (15), kind of the mouth that goes out of secondary seed separator (15) connects at least one secondary grain conductor (17) simultaneously, seed separate system carries out two level shunts to the seed in kind of a case (12),
Described seed Precision Seeding system comprises Precision Seeding separator (19) and soil plough (18), the seed inlet of described Precision Seeding separator (19) is connected with secondary grain conductor (17), acceptance by the seed flowing out after two level shunts, goes out kind of mouth and is connected with soil plough (18) from kind of a case (12);
Described baric systerm comprises blower fan (5), air flow divider (6), one-level gas blow pipe (7), secondary gas blow pipe (8) and air intake duct (9), described blower fan (5) air outlet connects respectively one-level gas blow pipe (7) after by air flow divider (6), one end of secondary gas blow pipe (8) and air intake duct (9), one-level gas blow pipe (7) other end is connected with first order seed separator (13), secondary gas blow pipe (8) other end is connected with each secondary seed separator (15), accelerate point Flow Velocity of seed separate system by air-blowing mode, air intake duct (9) other end is connected with each Precision Seeding separator (19), by the air-breathing interior negative pressure that produces of Precision Seeding separator (19) that makes, make seed monoseeding.
2. a kind of pneumatic type according to claim 1 can be expanded combination precision planter, it is characterized in that, precision planter also comprises reponse system,
Described reponse system comprises air pressure probe (21), backfeed loop (22) and controller (3), described air pressure probe (21) is located at Precision Seeding separator (19) inside, and connect controller (3) by backfeed loop (22), Precision Seeding separator (19) internal pressure conditions is fed back to controller (3), described controller (3) is connected with blower fan (5) and air flow divider (6) respectively, is controlling baric systerm air pressure size and throughput everywhere.
3. a kind of pneumatic type according to claim 1 and 2 can be expanded combination precision planter, it is characterized in that, described first order seed current divider (13) is identical with the structure of secondary seed current divider (15), adopt air-blowing and gravity mode to realize the shunting of seed, comprise inside and outside sheathed inner chamber and exocoel, the entrance of inner chamber is seed inlet, the bottom of inner chamber offers 18 interior grain conductors that extend to exocoel outside, each interior grain conductor opens or closes separately, with the scale of expansion combination precision planter, one-level gas blow pipe (7) or secondary gas blow pipe (8) are connected with inner chamber.
4. a kind of pneumatic type according to claim 1 and 2 can be expanded combination precision planter, it is characterized in that, described Precision Seeding separator (19) comprises left box body (23), right case (30), rotation seeds sucker (26), power transmission shaft (24), fragmenting plate (27) and seed retaining plate (29);
Described left box body (23) encloses formation whole box body with right case (30), the below of right case (30) offers planting hole (33), this planting hole (33) be positioned at soil plough (18) directly over;
Described rotation seeds sucker (26) is located between left box body (23) and right case (30), described left box body (23) forms negative pressure cavity with rotation seeds sucker (26), described right case (30) forms planting chamber with rotation seeds sucker (26), negative pressure cavity is communicated with air intake duct (9), form negative pressure, planting chamber is communicated with secondary grain conductor (17);
Described power transmission shaft (24) one end is connected with dynamic power machine, and the other end is through being connected with rotation seeds sucker (26) after left box body (23), and driven rotary seeds sucker (26) rotates;
On described rotation seeds sucker (26), offer and be arranged in circle-shaped suction hole (28);
Described fragmenting plate (27) is located at the below of left box body (23), and with rotation seeds sucker (26) plane contact, in the time of rotation seeds sucker (26) rotation, fragmenting plate (27) and the mutual airtight slip of rotation seeds sucker (26)
Described seed retaining plate (29) is located at the below of right case (30), stops in seed Luo Ru Island planting hole (33) unnecessary in planting chamber;
Negative pressure in negative pressure cavity is adsorbed onto on the suction hole (28) on rotation seeds sucker (26) seed in planting chamber one by one, in the time that seed runs to fragmenting plate (27) and locates with suction hole (28), seed is no longer subject to suction, drops in soil plough (18) from planting hole (33) by gravity.
5. a kind of pneumatic type according to claim 4 can be expanded combination precision planter, it is characterized in that, described suction hole (28) size is less than the particle size of seed, and meets and on each suction hole (28), only adsorb a seed.
6. a kind of pneumatic type according to claim 4 can be expanded combination precision planter, it is characterized in that, the shape of described fragmenting plate (27) meets it can at least cover a suction hole (28).
7. a kind of pneumatic type according to claim 4 can be expanded combination precision planter, it is characterized in that, between described power transmission shaft (24) and left box body (23), is provided with sealing ring (25).
8. a kind of pneumatic type according to claim 4 can be expanded combination precision planter, it is characterized in that, described air pressure probe (21) is inserted in negative pressure cavity.
9. a kind of pneumatic type according to claim 1 can be expanded combination precision planter, it is characterized in that, described secondary gas blow pipe (8) connects the air blowing isocon (10) identical with secondary seed separator (15) number by tube connector (11) simultaneously, and each air blowing isocon (10) is connected separately with each secondary seed separator (15) respectively;
Described air intake duct (9) connects the air-breathing isocon (16) identical with Precision Seeding separator (19) number by tube connector (11) simultaneously, and each air-breathing isocon (16) is connected separately with each Precision Seeding separator (19) respectively.
10. a kind of pneumatic type according to claim 2 can be expanded combination precision planter, it is characterized in that, described controller (3) is connected with supervisory control desk (1) by bus (2), by supervisory control desk (1) steering controller (3).
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| CN201410172433.5A CN103931312B (en) | 2014-04-25 | 2014-04-25 | Pneumatic type easily extensible combination precision planter |
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| CN201410172433.5A CN103931312B (en) | 2014-04-25 | 2014-04-25 | Pneumatic type easily extensible combination precision planter |
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Cited By (11)
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| CN104396390A (en) * | 2014-12-03 | 2015-03-11 | 济南大学 | Handheld quantitative seed separation mechanism of seeder |
| CN105478376A (en) * | 2015-12-31 | 2016-04-13 | 中国农业大学 | Seed separation device and seed vigor non-destructive testing system |
| CN106258099A (en) * | 2016-08-17 | 2017-01-04 | 湖北永祥农机装备有限公司 | The multi-functional planting machine of Pneumatic type |
| CN106538118A (en) * | 2016-10-25 | 2017-03-29 | 江苏省农业科学院 | A kind of aspirated-air type seeding plough essence amount dispenser |
| 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 |
| CN107926872A (en) * | 2018-01-17 | 2018-04-20 | 山东农业大学 | Aspirated-air type cocoon cutting machine |
| CN110140486A (en) * | 2019-04-18 | 2019-08-20 | 华南农业大学 | A kind of multi-pipeline Pneumatic type rice amount of broadcasting is adjustable hill-drop drill and its type of seeding |
| CN110933977A (en) * | 2019-11-21 | 2020-03-31 | 云南农业大学 | Vegetable plug seedling sowing device and miss-seeding detection method |
| CN111655023A (en) * | 2017-11-10 | 2020-09-11 | 马斯奇奥盖斯帕多股份有限公司 | Precise pneumatic seeder and adjusting method thereof |
| CN113226011A (en) * | 2018-11-13 | 2021-08-06 | 齐泽制造公司 | Air entrainment devices, systems, methods, and apparatus |
| CN113412710A (en) * | 2021-06-05 | 2021-09-21 | 安徽农业大学 | Multi-path dynamic negative pressure monitoring system and method for pneumatic seed metering device |
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