CN107710989B - Air-aspiration type precise rice seed sowing device - Google Patents
Air-aspiration type precise rice seed sowing device Download PDFInfo
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- CN107710989B CN107710989B CN201711215539.9A CN201711215539A CN107710989B CN 107710989 B CN107710989 B CN 107710989B CN 201711215539 A CN201711215539 A CN 201711215539A CN 107710989 B CN107710989 B CN 107710989B
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C7/00—Sowing
- A01C7/04—Single-grain seeders with or without suction devices
- A01C7/042—Single-grain seeders with or without suction devices using pneumatic means
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C7/00—Sowing
- A01C7/20—Parts of seeders for conducting and depositing seed
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
Abstract
The invention relates to an air-aspiration type precise rice seed metering device, which comprises a circular front cover, a seed metering disc and a rear cover which are sequentially clamped, wherein a transmission shaft passes through the middle part of the rear cover and is fixedly connected with the middle part of the seed metering disc; the lower end of the front cover is communicated with a seed guide box; a seed cavity is formed between the front end surface of the seed metering disc and the front cover; the front end face of the front cover is fixedly provided with a feeding box; the rear end face of the front cover is fixedly provided with a seed filling groove which is communicated with the side wall of the lower part of the feed box and is opened at the upper end, the bottom of the seed filling groove is communicated with a seed dropping box, a horizontal opening plate is arranged at the communicating part, and a first driving mechanism drives the opening plate to realize opening and closing; the upper part of the rear end face of the front cover is respectively and fixedly provided with an arc-shaped upper seed scraping piece and a baffle plate which are matched with each other, the lower end of the baffle plate is inclined towards the upper end direction of the seed filling groove, and the lower part of the rear end face of the front cover is fixedly provided with a lower seed scraping piece. The invention can realize precise hill-drop, quick seed cleaning, high efficiency and low processing cost.
Description
Technical Field
The invention relates to an air-aspiration type precise rice seed sowing device, which is particularly suitable for precise rice sowing in a community, and belongs to the field of agricultural machinery.
Background
Rice transplanting is a traditional mode of rice planting in China, and the mode is time-consuming and labor-consuming. The precise direct seeding in the dry land of the rice can greatly improve the planting efficiency, but the mechanical seeding of the rice seeds still has a plurality of problems, such as: the characteristics that the rice seeds are light in weight and easy to be viscous can cause that the rice seeds are not easy to be adsorbed by the seed tray, the rice seeds are long and thin and easy to be blocked in the seed sucking holes to cause miss seeding, and meanwhile, seeds in the seed metering device are not timely cleaned after seeding is finished, so that seed varieties can be mixed during subsequent seeding. All the problems can lead to the reduction of the operation quality of the seeder, and the loss is caused to the agricultural production.
Disclosure of Invention
In order to solve the technical problems, the invention provides the air-aspiration type rice precise seed metering device, which can realize precise hill-drop, rapid seed cleaning, and has high efficiency and low processing cost.
The technical scheme of the invention is as follows:
a pneumatic rice precise seed metering device comprises a circular front cover, a seed metering disc and a rear cover which are sequentially clamped, wherein a transmission shaft passes through the middle part of the rear cover and is fixedly connected with the middle part of the seed metering disc; the lower end of the front cover is communicated with a seed guide box; a seed cavity is formed between the front end surface of the seed metering disc and the front cover; the front end face of the front cover is fixedly provided with a feeding box; the rear end face of the front cover is fixedly provided with a seed filling groove which is communicated with the side wall of the lower part of the feed box and is opened at the upper end, the bottom of the seed filling groove is communicated with a seed dropping box, a horizontal opening plate is arranged at the communicating part, and a first driving mechanism drives the opening plate to realize opening and closing; the upper part of the rear end surface of the front cover is respectively and fixedly provided with an arc-shaped upper seed scraping piece and a baffle plate which are matched with each other, the lower end of the baffle plate is inclined towards the upper end direction of the seed filling groove, and the lower part of the rear end surface of the front cover is fixedly provided with a lower seed scraping piece; the seed metering disc rotates from the upper end of the seed filling groove to the seed scraping part, and a plurality of seed sucking holes for sucking seeds are uniformly formed in the circumferential direction of the seed metering disc; the seed suction holes are correspondingly arranged at the radius position of the seed metering disc and the radius position of the seed filling groove on the front cover, so that the seed suction holes can absorb seeds in the seed filling groove; the lower seed scraping piece scrapes off seeds clamped in the seed sucking holes; the middle part of the front end face of the rear cover is fixedly provided with a raised annular boss, two partition plates are respectively and fixedly arranged between the outer walls of two sides of the lower part of the annular boss and the inner wall of the rear cover, the two partition plates divide the area surrounded by the outer wall of the annular boss, the inner wall of the rear cover and the rear end face of the seed metering disc into a vacuum air chamber and a non-vacuum air chamber, the vacuum air chamber and the non-vacuum air chamber are communicated through a plurality of seed sucking holes and seed cavities, and the vacuum air chamber is communicated with an air inlet pipeline of an exhaust fan; the air inlet of the exhaust fan is also communicated with the seed dropping box through a seed sucking pipe.
Wherein, a seed guide plate is fixedly arranged between adjacent seed suction holes positioned on the front end surface of the seed metering disc; a plurality of seed stirring strips which are annularly arranged around the middle part of the seed metering disc are fixed on the front end surface of the seed metering disc.
The feeding box comprises an upper seed box, a lower seed box and an outer cylinder; the upper end of the seed feeding box is communicated with a seed separating device of the seeder, the lower end of the seed feeding box is communicated with the upper end of the seed discharging box, a seed blocking piece is arranged at the communicating position, an outer sliding rail from one side to the other side is arranged on the lower surface of the seed blocking piece, an outer sliding block is sleeved in the outer sliding rail, and a piston rod of an outer cylinder penetrates into the seed feeding box in an upward inclined mode and is hinged with the outer sliding block.
The first driving mechanism comprises an inner cylinder fixedly arranged on the rear end surface of the front cover, an inner slide rail from one side to the other side is arranged on the lower end surface of the opening and closing plate, an inner slide block is arranged in the inner slide rail, and a piston rod of the inner cylinder penetrates into the seed dropping box in an upward inclined mode and is hinged with the inner slide block.
The front end face of the front cover is provided with an upper seed scraper adjusting mechanism, the upper seed scraper adjusting mechanism comprises a poking plate and an arc-shaped clamping slide way fixedly arranged on the front end face of the front cover, one end of the poking plate is fixedly connected with a rotating shaft, the other end of the poking plate is clamped on the clamping slide way, and the other end of the rotating shaft penetrates through the front cover to be connected with the upper end of the upper seed scraping piece; the clamping slide way consists of a plurality of protruding blocks which are arranged at intervals, and the adjacent protruding blocks form a clamping part for clamping the poking plate.
Wherein, the seed scraping piece is provided with the U-shaped opening in keeping away from seed box one side down, and after the U-shaped opening contact block was in inhaling the seed in the kind hole, the seed dropped to the seed guide box in the U-shaped opening.
The length direction of the seed stirring strip is the radial direction of the seed metering disc.
The invention has the following beneficial effects:
1. the invention can realize precise hill-drop, quick seed cleaning, high efficiency and low processing cost.
2. The front cover of the seed feeding device is provided with the seed feeding box and the seed discharging box, the seed blocking piece is arranged between the seed feeding box and the seed discharging box, seeds can be stored in the seed feeding box in advance, the problem that the seeds cannot be rapidly filled into the seed filling groove due to the overlong distance from the seed separating device to the seed metering device is avoided, then the outer cylinder works, the seed blocking piece is moved away, and the seeds in the seed feeding box can be rapidly dropped into the seed filling groove communicated with the seed discharging box after being dropped into the seed discharging box.
3. The invention is provided with the upper seed scraping piece and the lower seed scraping piece, so that redundant seeds on the seed metering disc can be effectively scraped off, and the rebroadcast rate is reduced.
4. The invention relates to a special seed metering disc for rice seeds, the hole type of a seed suction hole is designed based on the size of the rice seeds, and a seed guide sheet and a seed stirring strip are arranged on the seed metering disc, so that the problem that the seed suction hole cannot effectively adsorb seeds due to the viscosity of the rice seeds can be effectively solved.
5. The opening and closing plate can be opened and closed by virtue of the inner air cylinder, after the seeding operation is finished, the opening and closing plate is opened, seeds in the seed filling groove fall into the seed dropping box, the suction fan works to generate negative pressure, and the seeds falling into the seed dropping box are sucked into a specific seed storage device through the seed suction pipe 18, so that the seeds are prevented from being mixed.
6. The seed scraping device is provided with the baffle plate, and seeds scraped by the upper seed scraping piece can fall into the seed filling groove again through the baffle plate and then are adsorbed again.
Drawings
FIG. 1 is a schematic view of the overall assembly structure of the present invention;
FIG. 2 is a schematic view of the front face structure of the front cover of the present invention;
FIG. 3 is a schematic view of the rear end face structure of the front cover of the present invention;
FIG. 4 is a schematic view of the front end face structure of the seed metering disc of the present invention;
FIG. 5 is a schematic view of the front face structure of the rear cover of the present invention;
FIG. 6 is a schematic diagram of a first driving mechanism according to the present invention;
FIG. 7 is an enlarged partial schematic view of the present invention at A of FIG. 2;
FIG. 8 is an enlarged partial schematic view of the present invention at B of FIG. 2;
FIG. 9 is an enlarged partial schematic view of the present invention at C of FIG. 6;
fig. 10 is a side view showing a state that the lower seed scraping member scrapes off seeds engaged in the seed sucking hole.
The reference numerals in the drawings are as follows:
1-front cover, 10-axle sleeve, 11-feeding box, 111-upper seed box, 112-lower seed box, 113-outer cylinder, 114-seed baffle, 115-outer slide rail, 116-outer slide block, 12-seed filling groove, 13-seed dropping box, 14-opening plate, 141-inner slide rail, 142-inner slide block, 15-upper seed scraping piece, 16-baffle, 17-lower seed scraping piece, 171-U-shaped opening, 18-seed sucking tube, 2-seed metering disc, 21-seed sucking hole, 22-seed guiding piece, 23-seed stirring strip, 3-rear cover, 31-annular boss, 32-baffle plate, 33-vacuum air chamber, 331-air suction port, 34-non-vacuum air chamber, 4-transmission shaft, 5-seed guiding box, 6-seed cavity, 7-first driving mechanism, 71-inner cylinder, 19-upper seed scraping device adjusting mechanism, 191-stirring plate, 192-clamping slide rail, 193-rotating shaft, 194-bump, 195-clamping part and 100-seed.
Detailed Description
The invention will now be described in detail with reference to the drawings and to specific embodiments.
Referring to fig. 1-5, an air-aspiration type precise rice seed sowing device comprises a circular front cover 1, a seed sowing disc 2 and a rear cover 3 which are sequentially clamped, wherein the front cover 1 is arranged on a frame, a transmission shaft 4 passes through the middle part of the rear cover 3 and is fixedly connected with the middle part of the seed sowing disc 2, the front end of the transmission shaft 4 is sleeved in a shaft sleeve 10 fixed on the middle part of the rear end surface of the front cover 1, the rear end of the transmission shaft 4 is provided with a chain wheel, and an engine transmits power to the chain wheel of the transmission shaft 4 through a chain to drive the seed sowing disc 2 to rotate; the lower end of the front cover 1 is communicated with a seed guiding box 5; a seed cavity 6 is formed between the front end surface of the seed metering disc 2 and the front cover 1; the front end surface of the front cover 1 is fixedly provided with a feed box 11; the rear end face of the front cover 1 is fixedly provided with a seed filling groove 12 communicated with the side wall of the lower part of the feed box 11, the upper end of the seed filling groove 12 is opened, the bottom of the seed filling groove 12 is communicated with a seed dropping box 13, a horizontal opening plate 14 is arranged at the communicating part, and a first driving mechanism 7 drives the opening plate 14 to realize opening and closing; the upper part of the rear end surface of the front cover 1 is respectively and vertically fixedly provided with an arc-shaped upper seed scraping piece 15 and a baffle piece 16 which are matched with each other, the baffle piece 16 is inclined from top to bottom towards the upper end direction of the seed filling groove 12, and the lower part of the rear end surface of the front cover 1 is fixedly provided with a lower seed scraping piece 17; the seed metering disc 2 rotates in the direction of the seed scraping piece 15 upwards from the upper end of the seed filling groove 12, a plurality of seed sucking holes 21 penetrating front and back are uniformly formed in the circumferential direction of the seed metering disc 2, the hole patterns of the seed sucking holes 21 are designed based on the size of the rice seeds 100, the seeds 100 can be adsorbed, but the seeds 100 cannot pass through the seed sucking holes 21; the radial position of the seed suction hole 21 in the seed metering disc 2 corresponds to the radial position of the seed filling groove 12 in the front cover 1, so that the seed suction hole 21 sucks the seeds 100 in the seed filling groove 12; the lower seed scraping member 17 scrapes off the seeds 100 clamped in the seed sucking holes 21; a seed guide plate 22 is fixedly arranged between adjacent seed suction holes 21 positioned on the front end surface of the seed metering disc 2; the front end surface of the seed metering disc 2 is fixedly provided with a plurality of seed stirring strips 23 which are annularly arranged around the middle part of the seed metering disc 2, and the seed guiding sheets 22 and the seed stirring strips 23 can effectively solve the problem that the seed sucking holes 21 can not effectively adsorb seeds 100 due to the viscous seeds 100 of rice; the length direction of the seed stirring strip 23 is the radial direction of the seed metering disc 2; the middle part of the front end surface of the rear cover 3 is fixedly provided with a raised annular boss 31, two partition plates 32 are respectively and fixedly arranged between the outer walls of two sides of the lower part of the annular boss 31 and the inner wall of the rear cover 3, the two partition plates 32 divide the area surrounded by the outer wall of the annular boss 31, the inner wall of the rear cover 3 and the rear end surface of the seed metering disc 2 into a vacuum air chamber 33 and a non-vacuum air chamber 34 up and down, the vacuum air chamber 33 and the non-vacuum air chamber 34 are communicated with a seed suction cavity 6 through a plurality of seed suction holes 21, an air suction port 331 is arranged on the vacuum air chamber 33, the air suction port 331 is communicated with an air inlet pipeline of an exhaust fan, and the exhaust fan works to enable the vacuum air chamber 33 to generate negative pressure so as to enable seeds 100 to be adsorbed on the seed suction holes 21 of the seed metering disc 2; the air inlet of the exhaust fan is also communicated with the seed dropping box 13 through a seed sucking pipe 18. After sowing, the suction fan works to generate negative pressure, and seeds falling into the seed falling box 13 are sucked away through the seed suction pipe 18, so that the seeds 100 are prevented from being mixed.
Referring to fig. 2 and 7, the feed cassette 11 includes an upper seed cassette 111, a lower seed cassette 112, and an outer cylinder 113; the upper end of the upper seed box 111 is communicated with a seed separating device of the seeder, the lower end of the upper seed box 111 is communicated with the upper end of the lower seed box 112, a seed blocking sheet 114 is arranged at the communicating position, an outer sliding rail 115 from one side to the other side is arranged on the lower surface of the seed blocking sheet 114, an outer sliding block 116 is sleeved in the outer sliding rail 115, and a piston rod of an outer cylinder 113 obliquely penetrates into the upper seed box 111 upwards and is hinged with the outer sliding block 116; the piston rod of the outer cylinder 113 shortens to drive the seed blocking piece 114 to open, so that communication between the seed feeding box 111 and the seed discharging box 112 is realized.
Referring to fig. 3, 6 and 9, the first driving mechanism 7 includes an inner cylinder 71 fixedly disposed on the rear end surface of the front cover 1, an inner slide rail 141 disposed on the lower end surface of the opening and closing plate 14 from one side to the other side, an inner slide block 142 disposed in the inner slide rail 141, and a piston rod of the inner cylinder 71 passing into the seed dropping box 13 in an upward inclined manner and hinged to the lower surface of the inner slide block 142; the piston rod of the inner cylinder 71 is extended, and the inner slide 142 is moved toward the inner slide rail 141 to turn the opening plate 14, so that the seed charging groove 12 and the seed dropping box 13 are communicated, and the seed 100 is dropped from the seed charging groove 12 into the seed dropping box 13.
Referring to fig. 2, 3 and 8, the front end surface of the front cover 1 is provided with an upper seed scraper adjusting mechanism 19, the upper seed scraper adjusting mechanism 19 includes a toggle plate 191 and an arc-shaped clamping slide way 192 fixedly arranged on the front end surface of the front cover 1, one end of the toggle plate 191 is fixedly connected with a rotating shaft 193, the other end of the toggle plate is clamped on the clamping slide way 192, and the other end of the rotating shaft 193 passes through the front cover 1 to be connected with the upper end of the upper seed scraper 15; the engaging slide 192 is composed of a plurality of protruding blocks 194 arranged at intervals, and the adjacent protruding blocks 194 form an engaging portion 195 for engaging the toggle plate 191.
Referring to fig. 3, a U-shaped opening 171 is provided on the side of the lower seed scraping member 17 away from the seed dropping box 13, so as to facilitate peeling off the seeds 100 engaged in the seed sucking holes 21.
The working principle of the invention is as follows:
during operation, seeds 100 fall into an upper seed box 111 by a seed dividing device, an outer cylinder 113 works to enable a seed blocking piece 114 to move away, the upper seed box 111 and a lower seed box 112 are communicated, so that the seeds 100 fall into a seed filling groove 12, an exhaust fan works to enable a vacuum air chamber 33 to generate negative pressure, an engine transmits power to a chain wheel of a transmission shaft 4 through a chain, the transmission shaft 4 drives a seed metering disc 2 to rotate upwards from the upper end of the seed filling groove 12 towards a seed scraping piece 15, seed sucking holes 21 uniformly distributed on the seed metering disc 2 are communicated with the vacuum air chamber 33, the seed sucking holes 21 begin to adsorb seeds in the seed filling groove 12 under the action of the negative pressure, and enable the seeds 100 to rotate along with the seed metering disc 2, when the seeds are rotated to the position of the upper seed scraping piece 15, the redundant seeds 100 on the seed sucking holes 21 are scraped by the upper seed scraping piece 15, the scraped seeds 100 fall into the seed filling groove 12 again through the blocking piece 16, the seed metering disc 2 continues to rotate, when the seeds are rotated to a non-vacuum air chamber 34, the negative pressure falls into the seed guiding box 5 by means of gravity, and the seeds 100 disappear by means of the negative pressure when the seeds 100 are clamped in the seed sucking holes 21, see fig. 10. After the sowing is completed, the inner cylinder 71 works, the opening plate 14 is opened, the seeds 100 in the seed filling groove 12 fall into the seed dropping box 13, the suction fan works to generate negative pressure, and the seeds 100 falling into the seed dropping box 13 are sucked away through the seed sucking pipe 18, so that the seeds 100 are prevented from being mixed.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present invention.
Claims (4)
1. An air-aspiration type precise rice seed sowing device is characterized in that: the seeding device comprises a circular front cover (1), a seeding disc (2) and a rear cover (3) which are sequentially clamped, wherein a transmission shaft (4) passes through the middle part of the rear cover (3) and is fixedly connected with the middle part of the seeding disc (2), and an engine drives the transmission shaft (4) to rotate so as to drive the seeding disc (2) to rotate; the lower end of the front cover (1) is communicated with a seed guiding box (5); a seed cavity (6) is formed between the front end surface of the seed metering disc (2) and the front cover (1); a feeding box (11) is fixedly arranged on the front end surface of the front cover (1); the rear end face of the front cover (1) is fixedly provided with a seed filling groove (12) which is communicated with the side wall of the lower part of the feeding box (11) and is arranged with an open upper end, the bottom of the seed filling groove (12) is communicated with a seed dropping box (13), a horizontal opening and closing plate (14) is arranged at the communicating position, and a first driving mechanism (7) drives the opening and closing plate (14) to realize opening and closing; the upper part of the rear end surface of the front cover (1) is respectively and vertically fixedly provided with an arc-shaped upper seed scraping piece (15) and a baffle piece (16) which are matched with each other, the lower end of the baffle piece (16) inclines towards the upper end direction of the seed filling groove (12), and the lower part of the rear end surface of the front cover (1) is fixedly provided with a lower seed scraping piece (17); the seed metering disc (2) rotates in the direction of the seed scraping piece (15) upwards from the upper end of the seed filling groove (12), and a plurality of seed sucking holes (21) for sucking seeds (100) are uniformly formed in the circumferential direction of the seed metering disc (2); the radial position of the seed suction hole (21) on the seed metering disc (2) corresponds to the radial position of the seed filling groove (12) on the front cover (1), so that the seed suction hole (21) adsorbs seeds (100) in the seed filling groove (12); the lower seed scraping piece (17) scrapes off seeds (100) clamped in the seed sucking holes (21); the middle part of the front end surface of the rear cover (3) is fixedly provided with a raised annular boss (31), two partition plates (32) are respectively and fixedly arranged between the outer walls of two sides of the lower part of the annular boss (31) and the inner wall of the rear cover (3), the two partition plates (32) divide the area formed by surrounding the outer wall of the annular boss (31), the inner wall of the rear cover (3) and the rear end surface of the seed metering disc (2) into a vacuum air chamber (33) and a non-vacuum air chamber (34) up and down, the vacuum air chamber (33) and the non-vacuum air chamber (34) are communicated with a seed cavity (6) through a plurality of seed sucking holes (21), and the vacuum air chamber (33) is communicated with an air inlet pipeline of an exhaust fan; the air inlet of the exhaust fan is also communicated with the seed dropping box (13) through a seed sucking pipe (18); the feeding box (11) comprises an upper seed box (111), a lower seed box (112) and an outer cylinder (113); the upper end of the seed feeding box (111) is communicated with a seed separating device of the seeder, the lower end of the seed feeding box (111) is communicated with the upper end of the seed discharging box (112), a seed blocking piece (114) is arranged at the communicating position, an outer sliding rail (115) from one side to the other side is arranged on the lower surface of the seed blocking piece (114), an outer sliding block (116) is sleeved in the outer sliding rail (115), and a piston rod of an outer cylinder (113) obliquely penetrates into the seed feeding box (111) upwards to be hinged with the outer sliding block (116); the first driving mechanism (7) comprises an inner cylinder (71) fixedly arranged on the rear end surface of the front cover (1), an inner slide rail (141) from one side to the other side is arranged on the lower end surface of the opening and closing plate (14), an inner slide block (142) is sleeved in the inner slide rail (141), and a piston rod of the inner cylinder (71) obliquely penetrates into the seed dropping box (13) upwards and is hinged with the inner slide block (142).
2. The air-aspiration type precise rice seed metering device according to claim 1, wherein: a seed guiding sheet (22) is fixedly arranged between adjacent seed sucking holes (21) positioned on the front end surface of the seed metering disc (2); a plurality of seed stirring strips (23) which are annularly arranged around the middle part of the seed metering disc (2) are fixed on the front end surface of the seed metering disc (2).
3. The air-aspiration type precise rice seed metering device according to claim 1, wherein: the front end face of the front cover (1) is provided with an upper seed scraper adjusting mechanism (19), the upper seed scraper adjusting mechanism (19) comprises a stirring plate (191) and an arc-shaped clamping slide way (192) fixedly arranged on the front end face of the front cover (1), one end of the stirring plate (191) is fixedly connected with a rotating shaft (193), the other end of the stirring plate is clamped on the clamping slide way (192), and the other end of the rotating shaft (193) penetrates through the front cover (1) to be connected with the upper end of an upper seed scraping piece (15); the clamping slide way (192) is composed of a plurality of protruding blocks (194) which are arranged at intervals, and the adjacent protruding blocks (194) form a clamping part (195) for clamping the poking plate (191).
4. The air-aspiration type precise rice seed metering device according to claim 2, wherein: the length direction of the seed stirring strip (23) is the radial direction of the seed metering disc (2).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711215539.9A CN107710989B (en) | 2017-11-28 | 2017-11-28 | Air-aspiration type precise rice seed sowing device |
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| CN201711215539.9A CN107710989B (en) | 2017-11-28 | 2017-11-28 | Air-aspiration type precise rice seed sowing device |
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| CN107710989B true CN107710989B (en) | 2023-05-23 |
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| CN108541424B (en) * | 2018-03-26 | 2020-10-09 | 民本农机有限公司 | Quantitative seed divider and seeding device thereof |
| CN108464093A (en) * | 2018-05-25 | 2018-08-31 | 山东农业大学 | Aspirated-air type plant planter gives up kind of retracting device |
| CN108476678A (en) * | 2018-05-25 | 2018-09-04 | 山东农业大学 | A kind of aspirated-air type plant planter deposits kind of a shell |
| CN108684258A (en) * | 2018-05-29 | 2018-10-23 | 山西省农业科学院作物科学研究所 | Seeds elimination structure and its seeder |
| CN109479459B (en) * | 2018-11-30 | 2020-07-31 | 华南农业大学 | Hot pepper precision seed metering ware |
| CN110583163A (en) * | 2019-09-16 | 2019-12-20 | 山东沃华农业科技股份有限公司 | Air-suction type seed sowing device for seeder |
| CN112042334B (en) * | 2020-09-17 | 2021-09-07 | 浙江奕乌侬食品有限公司 | Seed metering dish device based on three-dimensional printing technology |
| CN112930789B (en) * | 2021-03-26 | 2022-06-14 | 山东理工大学 | Air-suction type precision seed sowing device for single-disc double-side seed sowing |
| CN115152369B (en) * | 2022-07-07 | 2023-10-13 | 黑龙江省农业科学院耕作栽培研究所 | Corn sowing device and operation method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101810074B (en) * | 2010-05-07 | 2011-07-20 | 陈恒 | Air-aspiration type hole sowing roller device |
| CN102165871B (en) * | 2010-05-23 | 2012-12-12 | 陈恒 | Precision roller hole sowing device |
| CN102106211B (en) * | 2011-01-10 | 2012-02-01 | 淮海工学院 | Precise seeds sowing device for growing seedlings of aperture disk |
| CN102349382B (en) * | 2011-09-06 | 2013-11-06 | 华南农业大学 | Pneumatic dibbling seed feeding device |
| CN104737676B (en) * | 2015-04-23 | 2016-10-05 | 北屯金璞机械制造有限公司 | A kind of regulatable fertilizer applicator air-suction precision sowing device |
| CN207995666U (en) * | 2017-11-28 | 2018-10-23 | 青岛理工大学 | A kind of aspirated-air type rice precise seeder |
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