CN108811625B - Groove-tooth combined seed-metering disc for high-speed metering of spherical small-sized seeds - Google Patents
Groove-tooth combined seed-metering disc for high-speed metering of spherical small-sized seeds Download PDFInfo
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- CN108811625B CN108811625B CN201810667864.7A CN201810667864A CN108811625B CN 108811625 B CN108811625 B CN 108811625B CN 201810667864 A CN201810667864 A CN 201810667864A CN 108811625 B CN108811625 B CN 108811625B
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- 238000001179 sorption measurement Methods 0.000 claims abstract description 57
- 238000010899 nucleation Methods 0.000 claims abstract description 27
- 238000009331 sowing Methods 0.000 claims abstract description 14
- 239000002245 particle Substances 0.000 claims description 24
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 230000000452 restraining effect Effects 0.000 claims description 2
- 238000009825 accumulation Methods 0.000 abstract description 4
- 238000007790 scraping Methods 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 238000007599 discharging Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 241000219823 Medicago Species 0.000 description 1
- 235000017587 Medicago sativa ssp. sativa Nutrition 0.000 description 1
- 244000062793 Sorghum vulgare Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 235000019713 millet Nutrition 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C7/00—Sowing
- A01C7/18—Machines for depositing quantities of seed at intervals
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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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- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Medicines Containing Plant Substances (AREA)
- Pretreatment Of Seeds And Plants (AREA)
Abstract
The invention discloses a groove-tooth combined seed-metering disc for high-speed seeding of spherical small-sized seeds, wherein a positioning hole is arranged in the center of the seed-metering disc, a plurality of constraint grooves which are concentrically arranged with the positioning hole and distributed at intervals are arranged on the seed-metering disc, and seed disturbing teeth are formed between any two adjacent constraint grooves; the restraint groove is provided with a first adsorption channel, and the seed disturbing tooth is provided with a second adsorption channel. The invention adopts a groove-tooth combined structure to directionally disturb the seed group, breaks the stable accumulation state of the seed group, enables a small amount of seeds to be quickly separated from the seed group and enter a fixed ring groove channel to be freely captured and accurately absorbed by an absorption channel, improves the seed sowing efficiency, realizes high-speed seed sowing, and has small group friction force, large disturbance quantity and small scraping force with a baffle plate in the seed sowing device, thereby being not easy to cause seed coat damage.
Description
Technical Field
The invention relates to the technical field of agricultural precision seeding mechanical equipment, in particular to a groove-tooth combined seed discharging disc for high-speed seed discharging of spherical small-sized seeds.
Background
The spherical small-particle-size seeds refer to seeds with the sphericity of not less than 80% and the average particle size of not more than 3mm, mainly comprise rape, millet, alfalfa, flowers, part of vegetable seeds and the like, and although the seeds have high sphericity and good fluidity, the seeds have small particle size, weak shearing resistance and large difference of seeding quantity, so that the general precision seeding in fields is difficult to realize. The universal precision direct seeding technology has the advantages of time saving, labor saving and seed saving, and the development of an economical, practical, light, simple, energy-saving, universal and reliable spherical small-particle-size precision seed sowing device is an important way for realizing cost saving and efficiency improvement. The increase seed metering dish operating speed can promote spherical small-particle size seed volume of broadcasting, and then helps implementing the differentiation of spherical small-particle size seed volume of broadcasting and directly broadcast, but easily produces to leak because of the seed particle size is little and the seed time of filling short in the high-speed precision seeding in field and fills and fill the seeding performance, this is the bottleneck problem that restricts the high-speed direct broadcast of spherical small-particle size seed.
Chinese patent ZL201610894118.2 discloses a chute and suction hole combined type precision seed sowing device, wherein a seed sowing plate comprises a seed sowing plate, a chute and a suction hole. Although the seed-metering disc of the seed-metering device has the functions of stirring and separating the seed groups of the seed-charging chamber and realizing the adsorption of the supporting and restraining functions of the seeds. The following problems still remain: firstly, the disturbance intensity of the chute to the population is not large, and the seeds are difficult to be well separated from the population and adsorbed by the molded holes; secondly, the chutes do not obviously form directional disturbance to the population, so that the stable accumulation state of the population is difficult to break, and the seeds are not easy to separate from the population.
Disclosure of Invention
In order to solve the technical problems in the background technology, the invention provides a groove-tooth combined seed metering disc for high-speed seed metering of spherical small-sized seeds.
The invention provides a groove-tooth combined seed-metering disc for high-speed seed metering of spherical small-sized seeds, wherein a positioning hole is arranged in the center of the seed-metering disc, a plurality of constraint grooves which are concentrically arranged with the positioning hole and are distributed at intervals are arranged on the seed-metering disc, and seed disturbing teeth are formed between any two adjacent constraint grooves; the restraint groove is provided with a first adsorption channel, and the seed disturbing tooth is provided with a second adsorption channel.
Preferably, the restriction groove width LaLarger than the average particle diameter d of a single seedaAnd not more than 5 seeds having an average particle diameter, i.e. da＜La≤5da(ii) a Depth h of the constraining grooveaLarger than the average particle diameter d of a single seed a1/2 times and not more than the average particle diameter d of a single seedaI.e. 1/2da＜ha≤da。
Preferably, the length L of the seed disturbing teethcAnd the width L of the restriction grooveaAre equal, i.e. Lc＝La。
Preferably, the first adsorption passage is a cylindrical straight hole penetrating the confinement groove.
Preferably, the second adsorption channel is a cylindrical straight hole penetrating through the seed disturbing teeth.
Preferably, the first adsorption channel diameter dk1Diameter d of the second adsorption channelk2And average seed diameter daThe relationship of (1) is: dk1＝dk2(0.64～0.66)da。
Preferably, the first adsorption passage is located at the center of the constraining groove.
Preferably, the second adsorption channel is located in the center of the seed disturbing tooth.
Preferably, the first adsorption channel is provided with a first chamfer at one end of the front surface of the seeding plate.
Preferably, a second chamfer is arranged at one end of the second adsorption channel, which is positioned on the front surface of the seed sowing plate.
The groove-tooth combined type seed metering disc for high-speed seed metering of spherical small-sized seeds adopts a groove-tooth combined type structure to directionally disturb a population, breaks a stable accumulation state of the population, enables a small amount of seeds to be quickly separated from the population and enter a fixed annular groove channel to be freely captured and accurately adsorbed by an adsorption channel, improves seed metering efficiency, and further achieves the purpose of high-speed seed metering.
Drawings
FIG. 1 is a front view of a groove-and-tooth combined seed plate for high-speed seeding of spherical small-sized seeds according to the present invention.
FIG. 2 is a schematic sectional view of a groove-tooth combined seed plate for high-speed seeding of spherical small-sized seeds according to the present invention.
FIG. 3 is a partially enlarged sectional view of a groove-tooth combined seed plate for high-speed seeding of spherical small-sized seeds according to the present invention.
FIG. 4 is a partially enlarged front view of a groove-tooth combined seed plate for high-speed seeding of spherical small-sized seeds according to the present invention.
FIG. 5 is a rear view of a groove-tooth combined seed plate for high-speed seeding of spherical small-sized seeds according to the present invention.
Detailed Description
Fig. 1-5 show a front view of a groove-tooth combined seed plate for high-speed seeding of spherical small-sized seeds according to the present invention in fig. 1, a sectional view of a groove-tooth combined seed plate for high-speed seeding of spherical small-sized seeds according to the present invention in fig. 2, a sectional view of a groove-tooth combined seed plate for high-speed seeding of spherical small-sized seeds according to the present invention in fig. 3, a sectional view of a groove-tooth combined seed plate for high-speed seeding of spherical small-sized seeds according to the present invention in fig. 4, a front view of a groove-tooth combined seed plate for high-speed seeding of spherical small-sized seeds according to the present invention in fig. 5, and a rear view of a groove-tooth combined seed plate for high-speed seeding of spherical small-sized seeds according to.
Referring to fig. 1-5, the invention provides a groove-tooth combined seed plate for high-speed seed sowing of spherical small-sized seeds, the center of the seed plate 1 is provided with a positioning hole, the seed plate 1 is provided with a plurality of constraint grooves which are concentrically arranged with the positioning hole and are distributed at intervals, and seed disturbing teeth are formed between any two adjacent constraint grooves; the restraint groove is provided with a first adsorption channel 2, and the seed disturbing tooth is provided with a second adsorption channel 3. The first adsorption channel 2 and the second adsorption channel 3 are arranged through the seed plate.
In the specific working process of the groove-tooth combined seed metering disc for high-speed seed metering of spherical small-sized seeds, the seed metering disc 1 is arranged on a seed metering device through a positioning hole, the seed metering device is started, the seed metering disc rotates at a high speed, the seed disturbing teeth disturb the gathered seeds, the stable state of a seed group is broken, a part of a small amount of seeds enter a restraint groove, directional disturbance restraint on the seeds is realized, the seeds are adsorbed on a first adsorption channel 2 or a second adsorption channel 3 under the negative pressure action of an air suction chamber of the seed metering device, when the first adsorption channel 2 or the second adsorption channel 3 rotates out of the air suction chamber, the seeds enter a positive pressure chamber, positive pressure air flow is generated by a positive pressure chamber interface to blow out the seeds, and the seed metering process is finished under the action of gravity, centrifugal force and positive pressure air flow.
In the embodiment, the groove-tooth combined seed-metering disc for high-speed seed metering of spherical small-sized seeds adopts a groove-tooth combined structure to directionally disturb the population, break the stable accumulation state of the population, quickly separate a small amount of seeds from the population, enter the fixed constraint grooves, then be freely captured and accurately adsorbed by the adsorption channels, improve the seed-metering efficiency and further realize the purpose of high-speed seed metering; meanwhile, the seed sowing plate 1 is not provided with a convex part, which is equivalent to a compact disc, the seed group friction force in the groove-tooth combined seed sowing plate is small, the disturbance amount is large, the scraping force with a baffle plate in the seed sowing device is small, the seed coat is not easy to damage, and the constraint groove plays a certain protection role on seeds.
In particular embodiments, the slot width L is constrainedaFor restricting the length of the groove in the radial direction of the seed discharging plate, the width L of the restriction grooveaLarger than the average particle diameter d of a single seedaAnd not more than 5 seeds having an average particle diameter, i.e. da＜La≤5da(ii) a Depth h of the constraining grooveaLarger than the average particle diameter d of a single seed a1/2 times and not more than the average particle diameter d of a single seedaI.e. 1/2da＜ha≤da. Width L of the restriction grooveaLarger than the average particle diameter d of a single seedaAnd the average particle size of the seeds is not more than 5, so that the seeds can be properly adsorbed in the first adsorption channel 2 or the second adsorption channel 3 to form regular and normal seeding. If the slot width L is constrainedaThe average particle size of more than 5 seeds is not obvious in adsorption effect, and the phenomenon of seed miss-seeding is easy to occur; if the slot width L is constrainedaSmaller than the average particle diameter d of a single seedaTherefore, the phenomenon that the number of seeds in the confinement tank is large, a plurality of seeds are gathered, and the seeds are easily re-planted is easily caused. Depth h of the constraining grooveaLarger than the average particle diameter d of a single seed a1/2 times and not more than the average particle diameter d of a single seedaSo that the seeds are positioned in the ring grooves and are easily adsorbed and blown out. Depth h of the constraining grooveaToo deep, the constraint on the seeds is large, the quantity of the constrained seeds is large, and the rebroadcasting is easy to cause;depth h of the constraining grooveaToo shallow, the effect of restricting the seeds is small, and the missed seeding is easy to cause.
Further, the length L of the seed disturbing teethcThe length L of the seed disturbing teeth is the distance between any two adjacent constraint grooves in the circumferential directioncAnd the width L of the restriction grooveaAre equal, i.e. Lc＝LaSo that the length L of the seed disturbing teethcAnd the width L of the restriction grooveaThe matching is favorable for realizing directional seed disturbance under high-speed operation and improving the seed disturbance efficiency.
Further, the first adsorption channel 2 is a cylindrical straight hole penetrating through the restraint slot, and the second adsorption channel 3 is a cylindrical straight hole penetrating through the seed disturbing tooth. The first adsorption channel 2 and the second adsorption channel 3 can both generate adsorption effect on seeds, and the adsorption efficiency of the seed discharging plate is increased.
Further, the diameter d of the first adsorption passage 2k1Diameter d of the second adsorption channel 3k2And average seed diameter daThe relationship of (1) is: dk1＝dk2(0.64～0.66)da. Average diameter d of seedsaThe diameter of the first adsorption channel 2 and the second adsorption channel 3 is smaller, so that the seeds can not pass through the first adsorption channel 2 and the second adsorption channel 3 to enter a negative pressure chamber due to negative pressure; the range of the first adsorption channel 2 and the second adsorption channel 3 is (0.64-0.66) daThe application range of the seed discharging plate is enlarged, and the seed discharging plate is suitable for seeding seeds with different smaller grain diameters.
In other specific embodiments, the first adsorption channel 2 is located in the center of the constraint groove, and the second adsorption channel 3 is located in the center of the seed disturbing tooth, so that the more accurate directional constraint of the seeds is facilitated, and the seeds are sown regularly, continuously and uniformly.
Furthermore, a first chamfer angle is arranged at one end, located on the front side, of the seed discharging disc of the first adsorption channel 2, a second chamfer angle is arranged at one end, located on the front side, of the seed discharging disc of the second adsorption channel 3, and the arrangement of the first chamfer angle and the second chamfer angle is beneficial to more stable adsorption of seeds on the first adsorption channel 2 and the second adsorption channel 3.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. A groove-tooth combined seed plate for high-speed seed sowing of spherical small-sized seeds is characterized in that a positioning hole is formed in the center of the seed plate (1), a plurality of constraint grooves which are concentrically arranged with the positioning hole and distributed at intervals are formed in the seed plate (1), and seed disturbing teeth are formed between any two adjacent constraint grooves; the restraint groove is provided with a first adsorption channel (2), and the seed disturbing tooth is provided with a second adsorption channel (3);
the first adsorption channel (2) is positioned in the center of the restraint groove; the second adsorption channel (3) is positioned in the center of the seed disturbing teeth.
2. A fluted-tooth combined type seed-metering disc for high-speed metering of spherical small-sized seeds according to claim 1, wherein the width of the restriction grooveL a Larger than the average particle diameter of single seedd a And not more than 5 seeds in average particle diameter, i.e.d a ＜L a ≤5d a (ii) a Depth of the restriction grooveh a Larger than the average particle diameter of single seedd a 1/2 times and not more than the average particle diameter of a single seedd a I.e. 1/2d a ＜h a ≤d a 。
3. A combined seed plate for high-speed sowing of spherical small-sized seeds according to claim 1, wherein the length of the seed disturbing teethL c And the width of the restriction grooveL a Are equal, i.e.L c =L a 。
4. A fluted combined seed plate for high-speed seeding of spherical small-sized seeds according to claim 1, wherein the first adsorption channel (2) is a cylindrical straight hole penetrating through the restraining groove.
5. A combined seed plate for high-speed seeding of spherical small-sized seeds according to claim 1, wherein the second adsorption channel (3) is a cylindrical straight hole penetrating through the seed disturbing teeth.
6. A fluted-tooth combined seed-metering disc for high-speed metering of spherical small-sized seeds according to claim 4 or 5, characterized in that the diameter of the first adsorption channel (2)d k1 Diameter of the second adsorption channel (3)d k2 And average diameter of seedsd a The relationship of (1) is:d k1 =d k2 =（0.64～0.66）d a 。
7. a combined seed plate for high-speed seeding of spherical small-sized seeds according to claim 1, characterized in that the first adsorption channel (2) is provided with a first chamfer at one end of the front surface of the seed plate.
8. A combined seed plate for high-speed seeding of spherical small-sized seeds as claimed in claim 1, wherein the second adsorption channel (3) is provided with a second chamfer at one end of the front surface of the seed plate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810667864.7A CN108811625B (en) | 2018-06-26 | 2018-06-26 | Groove-tooth combined seed-metering disc for high-speed metering of spherical small-sized seeds |
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| CN201810667864.7A CN108811625B (en) | 2018-06-26 | 2018-06-26 | Groove-tooth combined seed-metering disc for high-speed metering of spherical small-sized seeds |
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| CN108811625A CN108811625A (en) | 2018-11-16 |
| CN108811625B true CN108811625B (en) | 2021-07-06 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3405030A1 (en) * | 1984-02-13 | 1985-08-14 | Amazonen-Werke H. Dreyer Gmbh & Co Kg, 4507 Hasbergen | Pneumatic seed-spacing drill |
| CN201057704Y (en) * | 2007-06-19 | 2008-05-14 | 李金泽 | Pneumatic seeder with complex seed plate |
| CN203675584U (en) * | 2013-09-11 | 2014-07-02 | 中国农业大学 | Airflow disturbance precise seed-metering device |
| CN106068826A (en) * | 2016-06-20 | 2016-11-09 | 山东省农业机械科学研究院 | Secondary auxiliary is inhaled and is planted from disturbance discharge plate |
| EP3108731A1 (en) * | 2015-06-22 | 2016-12-28 | Gorge Alberto Gentili | Direct drive 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 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8479671B2 (en) * | 2010-08-30 | 2013-07-09 | David T. Shoup | Magnetic vacuum seed meter |
| US9277688B2 (en) * | 2012-10-23 | 2016-03-08 | Kinze Manufacturing, Inc. | Air seed meter with adjustable singulator |
| US10104831B2 (en) * | 2015-05-21 | 2018-10-23 | David Jason Hockemeyer | Universal seed metering disc |
| CN206821229U (en) * | 2017-05-22 | 2018-01-02 | 山东省农业机械科学研究院 | Pneumatic seeding apparatus dynamics is adjustable cleaning device |
-
2018
- 2018-06-26 CN CN201810667864.7A patent/CN108811625B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3405030A1 (en) * | 1984-02-13 | 1985-08-14 | Amazonen-Werke H. Dreyer Gmbh & Co Kg, 4507 Hasbergen | Pneumatic seed-spacing drill |
| CN201057704Y (en) * | 2007-06-19 | 2008-05-14 | 李金泽 | Pneumatic seeder with complex seed plate |
| CN203675584U (en) * | 2013-09-11 | 2014-07-02 | 中国农业大学 | Airflow disturbance precise seed-metering device |
| EP3108731A1 (en) * | 2015-06-22 | 2016-12-28 | Gorge Alberto Gentili | Direct drive seed metering device |
| CN106068826A (en) * | 2016-06-20 | 2016-11-09 | 山东省农业机械科学研究院 | Secondary auxiliary is inhaled and is planted from disturbance discharge plate |
| CN106416536A (en) * | 2016-10-13 | 2017-02-22 | 安徽农业大学 | Chute and suction hole combined type precision seed-metering device |
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Inventor after: Li Zhaodong Inventor after: Chen Liqing Inventor after: Zhang Tian Inventor after: Qin Kuan Inventor after: Wang Weiwei Inventor after: Huang Xin Inventor after: Yang Wenchao Inventor after: Wang Qingqing Inventor before: Li Zhaodong |
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