CN115191184B - Precision hole direct seeding plate with adjustable seeding quantity for rice - Google Patents
Precision hole direct seeding plate with adjustable seeding quantity for rice Download PDFInfo
- Publication number
- CN115191184B CN115191184B CN202210855526.2A CN202210855526A CN115191184B CN 115191184 B CN115191184 B CN 115191184B CN 202210855526 A CN202210855526 A CN 202210855526A CN 115191184 B CN115191184 B CN 115191184B
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- Prior art keywords
- seed
- seed filling
- cavity
- disc
- filling
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- 235000007164 Oryza sativa Nutrition 0.000 title claims abstract description 112
- 235000009566 rice Nutrition 0.000 title claims abstract description 112
- 238000010899 nucleation Methods 0.000 title claims abstract description 23
- 240000007594 Oryza sativa Species 0.000 title 1
- 241000209094 Oryza Species 0.000 claims abstract description 111
- 238000009331 sowing Methods 0.000 claims abstract description 38
- 238000007599 discharging Methods 0.000 claims abstract description 16
- 235000013339 cereals Nutrition 0.000 description 9
- 230000001105 regulatory effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000003734 kidney Anatomy 0.000 description 1
Classifications
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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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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C7/00—Sowing
- A01C7/08—Broadcast seeders; Seeders depositing seeds in rows
- A01C7/10—Devices for adjusting the seed-box ; Regulation of machines for depositing quantities at intervals
- A01C7/102—Regulating or controlling the seed rate
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C7/00—Sowing
- A01C7/08—Broadcast seeders; Seeders depositing seeds in rows
- A01C7/12—Seeders with feeding wheels
- A01C7/121—Seeders with feeding wheels for sowing seeds of different sizes
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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
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Sowing (AREA)
- Pretreatment Of Seeds And Plants (AREA)
Abstract
The invention discloses a precision hole direct seeding seed metering disc with adjustable seed sowing quantity, which relates to the technical field of rice seeding equipment and comprises a cavity disc, a fluted disc and a seed filling disc, wherein a plurality of seed filling cavities and a plurality of seed sowing cavities are uniformly arranged in the cavity disc along the circumferential direction and are separated by a baffle plate extending along the radial direction of the cavity disc; seed discharging openings are also arranged on the circumferential surface of the cavity channel disc at intervals, and are communicated with the seed discharging cavity; a plurality of fixed teeth are uniformly arranged on the fluted disc along the circumferential direction, the fixed teeth are correspondingly positioned in the seed filling cavity, and the size of the fixed teeth is smaller than that of the seed filling cavity along the circumferential direction of the cavity channel disc; the seed filling tray is provided with a plurality of first seed filling openings and second seed filling openings with the size smaller than that of the first seed filling openings, and the first seed filling openings or the second seed filling openings are opposite to the seed filling cavity; therefore, the invention can adjust the seed filling port and the cavity for accommodating the rice seeds according to the rice seed varieties and the seed types so as to adapt to different hole sowing quantity requirements of different varieties and avoid the condition of rice seed missing filling or over filling.
Description
Technical Field
The invention relates to the technical field of rice seeding equipment, in particular to a precision hole direct seeding seed metering disc with adjustable seeding quantity.
Background
The existing seed metering disc with adjustable seeding quantity has single function, and the hole seeding quantity is usually regulated only by the fixed gear of the seed filling port or the working length of the regulating hole. As the rice varieties are two major types of hybrid rice and conventional rice, the hole sowing difference of the two types of rice is obvious, and the length and the size of the rice varieties of the same major type of rice are also greatly different, and the rice varieties are divided into long grain type and short grain type. If the hole sowing quantity is regulated only through the fixed gear of the large and small seed filling openings, the hole sowing quantity switching between two kinds of rice of hybrid rice and conventional rice can be only adapted, for example, the conventional rice is sown to switch the large seed filling opening, the sowing quantity is increased, but the conventional rice cannot be adapted to the short-grain rice seeds, so that the sowing quantity is larger; if the hybrid rice is sowed, the small seed filling port is switched, the sowing quantity is reduced, but the hybrid rice cannot adapt to long-grain hybrid rice, so that the rice seeds are less filled and the sowing is seriously leaked. If the hole sowing quantity is regulated only by regulating the working length of the hole without changing the sectional area of the seed filling port, the method can only adapt to the hole sowing quantity regulation of one kind of rice seeds in two major categories of hybrid rice and conventional rice, for example, the sowing of long-grain conventional rice by using the working length of the hole for sowing long-grain hybrid rice can cause insufficient seed filling quantity and cause miss-sowing; on the contrary, if the long grain type hybrid rice is sown by using the working length of the hole for sowing the long grain type conventional rice, the seed filling amount is larger, and the rebroadcast is caused.
Disclosure of Invention
The invention aims to provide a rice precision hole direct seeding seed metering disc with adjustable seed sowing quantity, which solves the problems in the prior art, can adjust a seed filling port and a cavity for accommodating rice seeds according to the variety and the grain type of the rice seeds, and avoids the condition of rice seed missing filling or over-filling.
In order to achieve the above object, the present invention provides the following solutions: the invention provides a precision hole direct seeding seed sowing disk with adjustable seed sowing quantity, which comprises a cavity channel disk, a fluted disc and a seed charging disk, wherein the cavity channel disk, the fluted disc and the seed charging disk are coaxially and relatively arranged, a plurality of seed charging cavities and a plurality of seed sowing cavities are uniformly arranged in the cavity channel disk along the circumferential direction, the seed charging cavities and the seed sowing cavities are in one-to-one correspondence along the axial direction of the cavity channel disk, are separated by a baffle plate extending along the radial direction of the cavity channel disk, and are communicated through a communication port at the end part of the baffle plate; seed discharging openings are further formed in the circumferential surface of the cavity disc at intervals, and the seed discharging openings are communicated with the seed discharging cavity;
the fluted disc is coaxial with the cavity disc and can be connected with the cavity disc in a relative rotation manner, a plurality of fixed teeth are uniformly arranged on the fluted disc along the circumferential direction, the fixed teeth are correspondingly positioned in the seed filling cavity, and the size of the fixed teeth is smaller than that of the seed filling cavity along the circumferential direction of the cavity disc;
the seed filling tray is provided with a plurality of first seed filling openings and second seed filling openings with the size smaller than that of the first seed filling openings, the first seed filling openings and the second seed filling openings are alternately arranged at intervals, and the first seed filling openings or the second seed filling openings are opposite to the seed filling cavities.
Preferably, in the circumferential direction of the cavity tray, one end of the seed filling cavity is fixed with a shielding piece, and the shielding piece is located between the fixed teeth and the seed filling tray.
Preferably, in the radial direction of the seed filling disc, the first seed filling port is located at the inner side of the second seed filling port, in the radial direction of the seed filling disc, the size of the first seed filling port is larger than that of the second seed filling port, and in the circumferential direction of the seed filling disc, the size of the first seed filling port is equal to that of the second seed filling port.
Preferably, the bottom of the seed filling cavity and the bottom of the fixed teeth are V-shaped.
Compared with the prior art, the invention has the following technical effects:
the seed filling tray is provided with the first seed filling opening and the second seed filling opening which are different in size, and is also provided with the fluted disc, and the fluted disc is provided with the fixed teeth which extend into the seed filling cavity, so that the seed filling opening and the cavity for accommodating rice seeds can be adjusted according to the length of rice seeds, and the condition that the rice seeds are leaked to be filled or over-filled is avoided;
according to the invention, the shielding piece is fixed at one end of the seed filling cavity in the circumferential direction of the cavity tray, and is positioned in a right-facing area away from the seed filling cavity and the first seed filling port or the second seed filling port, and is usually positioned between the fixed teeth and the seed filling tray;
in the invention, in the radial direction of the seed filling disc, the first seed filling port is positioned at the inner side of the second seed filling port, and after being matched with the seed filling cavity and the fluted disc, the seed filling disc can form a combination form of different circumferential length sizes of the seed filling ports and different depths of the seed filling cavities, so that the seed filling disc is further suitable for the hole sowing quantity required by different rice varieties and seed types;
the bottom of the seed filling cavity is V-shaped, so that rice seeds can be orderly stacked in the seed filling cavity, and the stability of hole sowing quantity is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the drawings that are needed in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a front view of a precision hole direct seeding tray of the present invention;
FIG. 2 is an exploded view of the precise hole direct seeding tray of the present invention;
FIG. 3 is a schematic view of the structure of FIG. 1 with the seed tray omitted;
FIG. 4 is a cross-sectional view of A-A of FIG. 1;
FIG. 5 is an enlarged view of a portion of FIG. 4;
FIG. 6 is a schematic diagram of a combined seed filling structure of the first seed filling port and the V-shaped groove;
FIG. 7 is a schematic diagram of a combined seed filling structure of the second seed filling port and the V-shaped groove;
1, a cavity disc; 11. a seed filling cavity; 12. a seed metering cavity; 13. a seed metering port; 14. a threaded hole; 2. fluted disc; 21. a fixed tooth; 22. a fixing pin; 3. a seed filling disc; 31. a first seed filling port; 32. a second seed filling port; 4. a shielding sheet; 5. an arc opening; 6. and (5) a bolt.
Description of the embodiments
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention aims to provide a rice precision hole direct seeding seed metering disc with adjustable seed sowing quantity, which solves the problems in the prior art, can adjust a seed filling port and a cavity for accommodating rice seeds according to the variety and the grain type of the rice seeds, and avoids the condition of rice seed missing filling or over filling.
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
The embodiment discloses a precision hole direct seeding seed metering disc with adjustable seeding quantity, which comprises a cavity disc 1, a fluted disc 2 and a seed filling disc 3 which are coaxially and relatively rotatably arranged, wherein a plurality of seed filling cavities 11 and a plurality of seed metering cavities 12 are uniformly arranged in the cavity disc 1 along the circumferential direction, the seed filling cavities 11 and the seed metering cavities 12 are in one-to-one correspondence along the axial direction of the cavity disc 1, are separated by a baffle plate extending along the radial direction of the cavity disc 1, and are communicated through a communication port at the end part of the baffle plate; seed discharging openings 13 are also arranged on the circumferential surface of the cavity disc 1 at intervals, and the seed discharging openings 13 are communicated with the seed discharging cavity 12; the fluted disc 2 is coaxial with the cavity disc 1 and can be connected in a relative rotation way, a plurality of fixed teeth 21 are uniformly arranged on the fluted disc 2 along the circumferential direction, the fixed teeth 21 are correspondingly positioned in the seed filling cavity 11, and the size of the fixed teeth 21 is smaller than that of the seed filling cavity 11 along the circumferential direction of the cavity disc 1; the seed filling disc 3 is provided with a plurality of first seed filling openings 31 and second seed filling openings 32 with the size smaller than that of the first seed filling openings 31, the first seed filling openings 31 and the second seed filling openings 32 are alternately arranged at intervals, and the first seed filling openings 31 or the second seed filling openings 32 are opposite to the seed filling cavity 11.
When the rice seed filling machine is used, according to rice seeds of different types and grain types, the first seed filling opening 31 or the second seed filling opening 32 which accords with the rice seeds is aligned with the seed filling cavity 11 by rotating the seed filling disc 3, and then the fluted disc 2 is rotated according to the grain type of the rice seeds, so that teeth in the fluted disc 2 rotate in the seed filling cavity 11, and the size of the circumferential direction of the seed filling opening and the size of the space for accommodating the rice seeds are changed at the same time, so that the rice seed filling machine is suitable for the rice seeds of different lengths, and the seed filling opening and a cavity for accommodating the rice seeds can be adjusted according to the rice seeds and the grain types, so that the condition of rice seed leakage filling or over filling is avoided.
Wherein, considering the characteristics of rice seed ellipsoids, the first seed filling port 31 and the second seed filling port 32 are all in a kidney shape, and the radial width dimension of the first seed filling port 31 is generallyB 1 Axial thickness dimension of single rice seeds more than 3 timescAnd is smaller than 4 times of the axial dimension of the thickness of single rice seedscI.e. 3c<B 1 <4cMeets the seed filling requirement of conventional rice seeds with larger hole sowing quantity, if the radial width dimension of the first seed filling opening 31B 1 Axial dimension of thickness of rice seeds not more than 3 timescThe conventional rice seeds at the seed filling port are not enough, so that the conventional rice seeds are easy to cause less filling or missing filling, and missing sowing is caused; if the radial width dimension of the first seed filling port 31B 1 Axial dimension of thickness of rice seeds not less than 4 timescThe conventional rice seeds at the seed filling port are excessively fed, so that the rice seeds are easily over-fed, and rebroadcast is caused; radial dimension of the second seed filling port 32B 2 Axial thickness dimension of single rice seeds more than 2 timescAnd is smaller than 3 times of the axial dimension of the thickness of single rice seedsc,2c<B 2 <3cMeets the seed filling requirement of the hybrid rice seeds with smaller hole sowing quantity, if the radial width dimension of the second seed filling opening 32B 2 Axial dimension of thickness of rice seeds not more than 2 timescThe hybrid rice at the seed filling port is not enough in seed feeding quantity, so that less filling or missing filling is easily caused, and missing sowing is caused; if the radial width dimension of the second seed filling port 32B 2 Not less than 3 times of axial dimension of thickness of rice seedscThe excessive seed feeding amount of the hybrid rice at the seed filling port can lead to the capacityIs easy to be overstretched, and causes replay.
It should be noted that, in the circumferential direction, the size of the seed filling cavity 11 is larger than the size of the first seed filling port 31 or the second seed filling port 32 in the present embodiment, and the fixing teeth 21 are also located in the seed filling cavity 11, and do not completely block the first seed filling port 31 or the second seed filling port 32; when the first seed filling port 31 is aligned with the seed filling cavity 11 and the fluted disc 2 is adjusted, a gap may be formed between the fixed teeth 21 and the inner wall of the seed filling cavity 11 far from the first seed filling port 31 in the circumferential direction, and the gap may be aligned with the second seed filling port 32, and during seed filling, rice seeds may be blocked into the gap from the second seed filling port 32, so that normal seed filling is affected, and the next adjustment of the fluted disc 2 is affected; in order to avoid this problem, in the circumferential direction of the cavity tray 1 in this embodiment, one end of the seed filling cavity 11 is fixed with a shielding plate 4, the shielding plate 4 is located in a region opposite to the first seed filling port 31 or the second seed filling port 32 away from the seed filling cavity 11, and is usually located between the fixed teeth 21 and the seed filling tray 3, and by setting the shielding plate 4, a gap between the fixed teeth 21 and the seed filling cavity 11 is shielded to avoid seed clamping.
In this embodiment, a plurality of arc openings 5 are correspondingly arranged on the seed filling disc 3 and the fluted disc 2, a plurality of threaded holes 14 are correspondingly arranged on the cavity disc 1, bolts 6 can be used to sequentially penetrate through the arc openings 5 on the seed filling disc 3 and the fluted disc 2 and screwed into the threaded holes 14, and the seed filling disc 3 and the fluted disc 2 are tightly pressed on the cavity disc 1 through nuts. When the seed filling plate 3 needs to be adjusted, the bolt 6 is loosened, the seed filling plate 3 is rotated, and the seed filling plate is screwed after the adjustment is completed. Since the fluted disc 2 is located between the seed filling disc 3 and the cavity disc 1, adjusting the fluted disc 2 after the seed filling disc 3 is disassembled is complicated, in this embodiment, a fixing pin 22 is provided on the end face of the fluted disc 2, the fixing pin 22 extends out from one of the arc openings 5 on the seed filling disc 3, when the fluted disc 2 needs to be adjusted, the bolt 6 is loosened, and the fixing pin 22 is shifted to rotate in the arc opening 5, so that the fluted disc 2 can be driven to rotate to achieve the purpose of adjusting the position of the fixing tooth 21 in the seed filling cavity 11.
Further, in this embodiment, the bottom section of the fixed teeth 21 is V-shaped, and the bottom of the seed filling cavity 11 is also V-shaped to fit with the fixed teeth 21 to form a V-shaped grooveThe angle of the seed sowing device is 55 degrees, so that rice seeds can be orderly stacked after entering the seed filling cavity 11, and the stability of the hole sowing quantity is improved. The V-shaped grooves are radially symmetrical on the cavity plate 1, so that rice seeds can be conveniently filled into the V-shaped grooves from the seed filling openings, rice seeds stacked in the V-shaped grooves can conveniently enter the seed sowing cavity through the inclined channels, and the width of the notch of the V-shaped groovesDAxial dimension of width of single rice seeds more than 2 timesbAnd is smaller than 3 times of the axial dimension of the thickness of single rice seedscI.e. 2b<D<3cEnsuring that two rows of rice seeds can be contained in the groove at most, avoiding the phenomena of missing or over-charging in the seed containing cavity, and if the width of the notch of the V-shaped grooveDAxial dimension of width of single rice seed not more than 2 timesbThe seed holding chamber is not enough to hold two rows of rice seeds, resulting in less filling, if the width of the notch of the V-shaped grooveDAxial dimension of thickness of single rice seed not less than 3 timescThe seed accommodating chamber has the probability of accommodating three rows and more of rice seeds, resulting in overcharging; and V type groove contained angle is 55, avoids V type groove to press from both sides kind to make the seed of rice pile up the V type groove in order after entering into filling kind chamber 11, improve the stability of bunch planting volume, if V type groove contained angle is less than 55, then the seed of rice is easily pressed from both sides in V type inslot, influences and fills kind and seed metering, if V type groove contained angle is too big, then influences the orderly pile up of seed of rice in the inslot, reduces the stability of bunch planting volume.
The first seed filling port 31 is larger in size than the second seed filling port 32 in the radial direction of the seed filling disk 3; in the radial direction of the seed filling disc 3, a circular track line formed by arranging a plurality of first seed filling openings 31 is positioned at the inner side of a circular track line formed by arranging a plurality of second seed filling openings 32, so that the distance from the first seed filling openings 31 to the bottom of the seed filling cavity 11 is larger than the distance from the second seed filling openings 32 to the bottom of the seed filling cavity 11, and when the first seed filling openings 31 are opposite to the seed filling cavity 11, a deeper seed containing cavity is obtained to adapt to the requirement of larger hole sowing amount of conventional rice; and when the second seed filling port 32 is opposite to the seed filling cavity 11, a shallower seed containing cavity is obtained so as to adapt to the requirement of smaller hole sowing quantity of the hybrid rice. Radial distance between the outer sides of the first seed filling port 31 and the second seed filling port 32hIs greater than the thickness axial dimension of single rice seedcBut less than 1.5 times of the thickness axial dimension of single rice seedscI.e.c<h<1.5cSo that the first seed filling opening 31 is opposite to the seed filling cavity 11 than the first seed filling openingWhen the two seed filling openings 32 are opposite to the seed filling cavity 11, the depth of the seed containing cavity is larger than the depth requirement for containing one layer of rice seeds, if the radial distance is the samehNot greater than the thickness axial dimension of single rice seedcWhen the first seed filling port 31 is opposite to the seed filling cavity 11, the seed filling cavity is used for sowing conventional rice, so that the depth of the seed containing cavity is insufficient, three layers of rice seeds cannot be contained, and less filling or missing filling is easily caused; if the radial distancehThickness axial dimension of single rice seed not less than 1.5 timescWhen the first seed filling port 31 is opposite to the seed filling cavity 11, the seed filling port is used for sowing conventional rice, so that the depth of the seed containing cavity is too large, over-filling is caused, and re-sowing is easy to cause.
In the circumferential direction of the seed charging tray 3, the size of the first seed charging port 31LIs equal to the second seed filling port 32, and the sizes of the first seed filling port 31 and the second seed filling port 32 in the circumferential direction of the seed filling disk 3 are both larger than the longest length axial size of single rice seedaBut less than 1.5 times of the axial length of the single rice seedaI.e.a<L<1.5aThe method can only accommodate single-grain rice seeds in the circumferential direction of the seed metering disc by one-time seed filling along the circumferential tangential direction gesture along the long axis direction, promote the gesture consistency of the seed filling rice seeds, enable the seed filling rice seeds to be orderly stacked in the V-shaped groove after being filled into the seed filling port, and if the axial size of the first seed filling port 31 or the second seed filling port 32 is not larger than the length axial size of the single-grain rice seedsaThe rice seeds cannot be filled in the gesture of the long axis direction along the circumferential tangential direction, so that not only is the smooth filling of the rice seeds into the seed filling opening affected, but also the filling is missed, and the orderly stacking of the rice seeds in the V-shaped groove is not facilitated; if the axial dimension of the first seed charging port 31 or the second seed charging port 32 is not less than 1.5 times the axial dimension of the rice seed lengthaTwo rice seeds on the circumference direction of the seed metering disc are easy to cause to fill seeds simultaneously in the gesture of the circumference tangential direction along the long axis direction, so that not only is the ordered stacking of the rice seeds in the V-shaped groove influenced, but also the notch of the V-shaped groove is easy to be blocked by the two rice seeds, the subsequent seed filling is influenced, and the seed filling is missed.
Further, when the first seed filling port 31 or the second seed filling port 32 is aligned with the seed filling cavity 11, the central axis of the seed discharging cavity 12 and the central axis of the first seed filling port 31 or the second seed filling port 32 have a certain offset distance in the circumferential direction, the offset distance can be 2.1mm on a circular track line where the first seed filling port 31 or the second seed filling port 32 is distributed, and the seed discharging cavity 12 is in front of the first seed filling port 31 or the second seed filling port 32 along the rotation direction. The seed charging cavity 11 and the seed discharging cavity 12 are communicated through an inclined channel, and an included angle between the channel and the vertical central axis of the first seed charging port 31 or the second seed charging port 32 can be 27 degrees, so that rice seeds can fall into the seed discharging cavity 12 from the seed charging cavity 11 in the rotation process, and finally seeds are discharged from the seed discharging port 13.
The adaptation to the actual need is within the scope of the invention.
It should be noted that it will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (4)
1. The precise hole direct seeding seed metering disc is characterized by comprising a cavity channel disc, a fluted disc and a seed filling disc which are coaxially and relatively rotatably arranged, wherein a plurality of seed filling cavities and a plurality of seed metering cavities are uniformly arranged in the cavity channel disc along the circumferential direction, the seed filling cavities and the seed metering cavities are in one-to-one correspondence along the axial direction of the cavity channel disc, are separated by a baffle plate extending along the radial direction of the cavity channel disc, and are communicated through a communication port at the end part of the baffle plate; seed discharging openings are further formed in the circumferential surface of the cavity disc at intervals, and the seed discharging openings are communicated with the seed discharging cavity;
the fluted disc is coaxial with the cavity disc and can be connected with the cavity disc in a relative rotation manner, a plurality of fixed teeth are uniformly arranged on the fluted disc along the circumferential direction, the fixed teeth are correspondingly positioned in the seed filling cavity, and the size of the fixed teeth is smaller than that of the seed filling cavity along the circumferential direction of the cavity disc;
the seed filling tray is provided with a plurality of first seed filling openings and second seed filling openings with the size smaller than that of the first seed filling openings, the first seed filling openings and the second seed filling openings are alternately arranged at intervals, and the first seed filling openings or the second seed filling openings are opposite to the seed filling cavities.
2. The precision hole direct seeding tray for rice with adjustable seed sowing quantity according to claim 1, wherein a shielding sheet is fixed at one end of the seed charging cavity in the circumferential direction of the cavity tray, and the shielding sheet is positioned between the fixed teeth and the seed charging tray.
3. The precision hole direct seeding tray for rice with adjustable seed sowing amount according to claim 2, wherein the first seed filling port is positioned at the inner side of the second seed filling port in the radial direction of the seed filling tray, the size of the first seed filling port is larger than that of the second seed filling port in the radial direction of the seed filling tray, and the size of the first seed filling port is equal to that of the second seed filling port in the circumferential direction of the seed filling tray.
4. The rice precision hole direct seeding tray with adjustable seeding quantity according to claim 3, wherein the bottom of the seed filling cavity and the bottom of the fixed teeth are V-shaped.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210855526.2A CN115191184B (en) | 2022-07-20 | 2022-07-20 | Precision hole direct seeding plate with adjustable seeding quantity for rice |
| NL2033539A NL2033539B1 (en) | 2022-07-20 | 2022-11-16 | Seeding plate for rice precision hill-direct-seeding with adjustable seeding rate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210855526.2A CN115191184B (en) | 2022-07-20 | 2022-07-20 | Precision hole direct seeding plate with adjustable seeding quantity for rice |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115191184A CN115191184A (en) | 2022-10-18 |
| CN115191184B true CN115191184B (en) | 2024-02-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210855526.2A Active CN115191184B (en) | 2022-07-20 | 2022-07-20 | Precision hole direct seeding plate with adjustable seeding quantity for rice |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN115191184B (en) |
| NL (1) | NL2033539B1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115606370B (en) * | 2022-12-05 | 2024-05-28 | 安徽农业大学 | Combined cavity type precise hole direct seeding plate for rice |
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| NL2033539B1 (en) | 2024-01-29 |
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