CN115606370B - Combined cavity type precise hole direct seeding plate for rice - Google Patents
Combined cavity type precise hole direct seeding plate for rice Download PDFInfo
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- CN115606370B CN115606370B CN202211552899.9A CN202211552899A CN115606370B CN 115606370 B CN115606370 B CN 115606370B CN 202211552899 A CN202211552899 A CN 202211552899A CN 115606370 B CN115606370 B CN 115606370B
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- seed
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- seed filling
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- 235000007164 Oryza sativa Nutrition 0.000 title claims abstract description 120
- 235000009566 rice Nutrition 0.000 title claims abstract description 120
- 238000010899 nucleation Methods 0.000 title claims abstract description 29
- 240000007594 Oryza sativa Species 0.000 title description 3
- 241000209094 Oryza Species 0.000 claims abstract description 119
- 238000003756 stirring Methods 0.000 claims description 34
- 235000013339 cereals Nutrition 0.000 claims description 7
- 238000009331 sowing Methods 0.000 abstract description 28
- 230000001105 regulatory effect Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 238000012938 design process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009418 agronomic effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000000717 retained effect Effects 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
-
- 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)
Abstract
The invention relates to the technical field of seed metering discs, and particularly discloses a combined cavity type paddy precise hole direct seeding seed metering disc which comprises a cavity type disc, an adjusting disc and a fastening piece, wherein the adjusting disc is concentrically and rotatably connected to the end face of the cavity type disc and is fixed through the fastening piece; the seed metering disc provided by the invention can adapt to different hole sowing amounts of hybrid rice, conventional rice and super rice by opening the number of the seed filling openings, can adapt to the hole sowing amount requirement of the same kind of rice without adjusting the structural parameters of the holes according to the outline dimension of the rice, and has stable seed filling amount.
Description
Technical Field
The invention relates to the technical field of seed metering discs, and particularly discloses a combined cavity type precise hole direct seeding seed metering disc for paddy rice.
Background
The direct seeding rice planting is one of the main current rice planting modes in China, wherein the precise hole direct seeding technology can precisely distance and hole-form the rice seeds in the field according to the planting agronomic requirements of the rice seeds, so that a group structure suitable for the growth of the rice is easy to obtain, stable yield and high yield are ensured, and the direct seeding rice planting method is widely applied to the direct seeding planting of hybrid rice and conventional rice. In the direct seeding planting process of the rice, the tillering capability of super rice, hybrid rice and conventional rice is quite different, so that the required hole sowing quantity of the super rice is different, wherein the super rice is generally sown with 1-2 grains per hole, the hybrid rice is generally sown with 2-4 grains per hole, and the conventional rice is generally sown with 5-8 grains per hole, so that the mechanical hole sowing seed sowing device is required to adjust the seed filling quantity per hole according to different rice seeds, and the requirement of different hole sowing quantities of different rice seeds is met.
The existing seed metering adjustment method of the mechanical seed metering device mainly comprises two modes of changing the size of a seed filling cavity and adjusting the number of seed filling holes and channels. The method comprises the steps of changing the size of a seed filling cavity, namely changing the size of the seed filling opening and the volume of the cavity, and starting to adjust the sowing quantity, wherein the adjustment of the hole sowing quantity is required to be determined according to the appearance and the size of different rice seeds, and the appearance and the size of the different rice seeds are obviously different, so that the adjustment of the size of the seed filling opening and the volume of the cavity is complicated; the number of the cavity channels is changed by arranging holes and cavity channels on the front end surface and the back end surface of the seed metering disc, and the seeding quantity is regulated by controlling the number of the holes on the seed metering disc participating in seed filling. The existing same seed metering disc body can only adapt to the adjustment of the hole sowing quantity of two types of rice, but cannot meet the hole sowing quantity of three types of rice, namely super rice, hybrid rice and conventional rice. Based on the above, the application provides a combined cavity type rice precision hole direct seeding plate, which can adapt to the hole seeding requirements of super rice, hybrid rice and conventional rice of different types by adjusting the number of the seed filling holes of the combined cavity.
Disclosure of Invention
The invention aims to provide a combined cavity type rice precision hole direct seeding plate suitable for super rice, hybrid rice and conventional rice, so as to solve the defect of the existing mechanical seed sowing device in response to the sowing of different types of rice, such as super rice, hybrid rice and conventional rice.
The invention is realized by the following technical scheme:
The utility model provides a combination cavity way type rice precision hole direct seeding seed metering disc, includes cavity way dish, regulating disk and fastener, the concentric rotation of regulating disk is connected on the terminal surface of cavity way dish and is fixed through the fastener, installs the cavity way dish terminal surface of regulating disk is equipped with the outer, middle, interior three of multiunit radial interval and fills kind mouth in annular array form, set up on the regulating disk with every group in, interior two fill kind mouth corresponding open and shut mouth;
The combined seed filling device is characterized in that a combined cavity channel corresponding to each group of seed filling holes is arranged in the cavity channel disc, each combined cavity channel comprises three trapezoid cavity channels and one seed converging cavity channel, one ends of the three trapezoid cavity channels are respectively corresponding to the outer seed filling holes, the middle seed filling holes and the inner seed filling holes, the other ends of the trapezoid cavity channels are communicated with the seed converging cavity channels in a cycloid curve track shape, and seed outlet holes communicated with each seed converging cavity channel are formed in the circumferential surface of the cavity channel disc.
In the design process, the seed metering disc is provided with a plurality of groups of combined channels on the same end face of the channel disc, each group of combined channels is provided with three seed filling ports, each seed filling port corresponds to one trapezoid channel, the three trapezoid channels are collected to the seed collecting channel, then the seed collecting channel corresponds to one seed outlet, and the number of the seed filling ports is opened in the use process to adapt to different hole sowing amounts of hybrid rice, conventional rice and super rice.
As the specific setting of above-mentioned scheme, offer on the terminal surface of chamber way dish with the circular slot of regulating disk looks adaptation, the regulating disk rotates the setting in the circular slot. The design of the circular groove can enable the adjusting disc to be stably arranged on the cavity disc, enable the cavity disc to be on the same plane with the outer surface of the adjusting disc, and prevent the adjusting disc from protruding outwards.
As the specific setting of above-mentioned scheme, the shape of filling the kind mouth is the oval shape, and the major axis direction of filling the kind mouth and this place tangent setting of ring line. The design of the seed filling port can enable the rice seeds in the seed filling area to be filled into the seed filling port in a posture that the long axis direction of the rice seeds is approximately consistent with the length direction of the seed filling port under the limitation of the guiding of the seed guiding groove and the kidney-shaped seed filling port, and the rice seeds lie on the bottom side surface of the trapezoid cavity channel.
As the specific setting of above-mentioned scheme, outer, well, interior three the length dimension of filling the seed mouth equals, and all is greater than the biggest length dimension of rice seed, and is less than 1.25 times the biggest length dimension of rice seed, and outer, well two the width dimension of filling the seed mouth equals, and is 2 times of the average thickness dimension of rice seed, and the inlayer the width dimension of filling the seed mouth is 2 times of the average width dimension of rice seed.
As the concrete setting of above-mentioned scheme, the design is enlarged gradually to the side by the one side that is close to filling kind mouth to trapezoidal chamber way, is close to the wall of filling kind mouth is personally submitted the slope form and is set up, and reserves the interval that plays the restriction effect to the seed of rice between the lower extreme of wall and the filling kind mouth tip. The design of above-mentioned trapezoidal chamber way can make the rice seed pass through from the great side of trapezoidal cross-section automatically, avoids chamber way card kind, and the chamber way dish terminal surface cooperation of trapezoidal chamber way department forms slope on the ration hole, bottom side and top side simultaneously makes the bottom rice seed on the slope of lying be detained in the ration downthehole, and the upper rice seed that is higher than about the chamber way dish lateral wall will roll out the ration hole under the dead weight effect for whole seed metering dish can be according to different rice seed width, thickness dimensional variation characteristics little, clear kind with the gesture of lying down, can realize stable ration and fill kind.
As a further arrangement of the scheme, each seed filling port is provided with a seed stirring tooth similar to the rice seed type at the periphery, and the included angle between the side surface of the seed stirring tooth close to the seed filling port and the end surface of the seed metering disc is 55-90 degrees. The design of the seed stirring teeth can apply auxiliary filling force for filling the seed filling opening to rice seeds, and can effectively avoid seed clamping.
As a further arrangement of the scheme, the surface of the seed stirring teeth is provided with grid lines which are the same as the rice seed case. The design of the grid lines can improve the friction coefficient of the seed stirring teeth, increase the friction force of the seed stirring teeth for stirring the population, increase the movement speed of the seed with the seed, reduce the relative movement linear speed of the seed and the seed metering disc, and improve the seed filling performance.
As a further arrangement of the scheme, the seed stirring teeth are arranged from the crown to the root of the seed stirring teeth at one side along the rotation direction in a necking way, and the crowns of the seed stirring teeth are provided with raised prismatic rings. The structural design of the seed stirring teeth can enlarge the auxiliary filling force acting range of the seed stirring teeth.
Compared with a mechanical seed sowing device, the invention has the following beneficial effects:
1. the seed metering disc provided by the invention can open the number of seed filling openings by rotating the adjusting disc so as to adapt to different hole sowing amounts of hybrid rice, conventional rice and super rice.
2. According to the seed metering disc provided by the invention, through the special structural design of the internal combined cavity, the quantitative hole structure formed by the trapezoid cavity can adapt to the hole sowing quantity requirement of the same kind of rice seeds without adjusting the structural parameters of the holes according to the outline dimension of the rice seeds, and the seed filling quantity is stable.
3. The trapezoidal cavity in the seed metering disc can enable rice seeds to automatically pass through the larger side of the trapezoidal section, so that the rice seeds are prevented from being blocked, meanwhile, the trapezoidal cavity is in a cycloid curve track, and the rice seeds in each cavity can be conveniently and rapidly gathered at the seed outlet and discharged from the seed outlet in a cavitation mode.
4. The seed metering disc provided by the invention has the advantages that the inclined rice seed stirring teeth are arranged at the outer side of the seed filling opening, so that the fluidity of the population can be improved, the moving resistance of rice seeds in the population can be reduced, the moving speed of the rice seeds in contact with the seed metering disc can be increased, and the relative moving linear speed of the seed metering disc and the seed metering disc can be reduced; and the stable auxiliary filling force is applied to the rice seeds to be filled, so that the seed filling performance of the holes is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is 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 schematic perspective view of the present invention;
FIG. 2 is a schematic perspective exploded view of the present invention;
FIG. 3 is a schematic perspective view of the cavity plate of the present invention;
FIG. 4 is a schematic perspective view of a play-amount adjusting disk according to the present invention;
FIG. 5 is a schematic view of the back side of the tunnel tray of the present invention in a cross-sectional perspective structure;
FIG. 6 is a schematic plan view of the back of the cavity plate of the present invention;
fig. 7 is an enlarged schematic view of the structure of fig. 3a according to the present invention.
Detailed Description
In order that those skilled in the art will better understand the present application, a technical solution in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, shall fall within the scope of the present application.
It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The present application will be described in detail with reference to fig. 1 to 7, and examples.
Example 1
Embodiment 1 discloses a combined cavity type rice precision hole direct seeding plate, and referring to fig. 1 and 2, the main body of the plate consists of a cavity plate 1, a seed quantity adjusting plate 2 and a fastening screw 3. A circular groove 101 matched with the sowing quantity adjusting disc 2 is formed in one end face of the cavity disc 1, so that the sowing quantity adjusting disc 2 can be rotatably arranged in the circular groove 101, and the outer surface of the sowing quantity adjusting disc 2 and the end face of the cavity disc 1 are guaranteed to be positioned on the same plane. Meanwhile, a plurality of connecting screw holes 102 are formed in the circular groove 101, the fastening screw 3 is connected to the connecting screw holes 102, and then an arc-shaped hole 201 matched with the corresponding fastening screw 3 is formed in the sowing quantity adjusting plate 2, so that the outer end of the fastening screw 3 penetrates through the arc-shaped hole 201 to extend out. After the seeding quantity adjusting plate 2 is rotated, the fixing of the seeding quantity adjusting plate 2 can be realized by tightening the fastening screw 3.
Referring to fig. 3 and 4, a plurality of groups of seed filling openings 103 are formed in an annular array on the end face of the cavity disc 1 provided with the seed sowing quantity adjusting disc 2, and each group of seed filling openings 103 consists of an outer seed filling opening, a middle seed filling opening and an inner seed filling opening which are arranged at intervals along the radial direction. Wherein the seed filling openings 103 of the outer layer are arranged on the end face of the cavity disk 1 at the periphery of the circular groove 101, and the two seed filling openings 103 of the middle layer and the inner layer are arranged on the cavity disk 1 in the circular groove 101. Simultaneously, the seed sowing quantity adjusting disk 2 is also provided with an opening and closing opening 202 corresponding to each middle-layer and inner-layer seed filling opening 103, so that the middle-layer seed filling opening 103 can be aligned with the opposite opening and closing opening 202 by rotating the seed sowing quantity adjusting disk 2, and the middle-layer seed filling opening 103 is opened, or the middle-layer and inner-layer seed filling openings 103 are simultaneously aligned with the corresponding opening and closing openings 202, and the middle-layer and inner-layer seed filling openings 103 can be opened completely.
Referring to fig. 5 and 6, a plurality of combined passages 4 are provided in an annular array on the inner end surface of the passage plate 1, and each combined passage 4 is provided corresponding to each set of seed filling ports 103. The combined cavity channel 4 comprises three trapezoid cavity channels 401 and a seed collecting cavity channel 402, one ends of the three trapezoid cavity channels 401 are respectively arranged corresponding to the outer seed filling opening 103, the middle seed filling opening 103 and the inner seed filling opening 103, and then the other ends of the three trapezoid cavity channels 401 are communicated with the seed collecting cavity channels 402 in a cycloid curve track shape. Meanwhile, a plurality of seed outlets 104 are formed in an annular array on the circumferential surface of the cavity plate 1, and each seed outlet 104 is arranged at a position corresponding to the outer end of the seed collecting cavity 402, so that rice seeds in the seed collecting cavity 402 can be smoothly discharged from the seed outlets 104.
In the specific design process, the shape of the whole seed filling port 103 is in a waist-round shape, and the long axis direction of the seed filling port 103 is tangential to the circular line, so that the rice seeds in the seed filling area are filled into the seed filling port in a posture that the long axis direction is approximately consistent with the length direction of the seed filling port under the guidance of the seed guiding groove and the limitation of the waist-round seed filling port, lie on the bottom side surface of the trapezoid cavity 401 and rotate along with the seed metering disc. When the sowing amount of the bunch planting requires only 1-2 super rice grains, only opening the seed filling port of the outer layer; when sowing hybrid rice with hole sowing quantity of 2-4 grains, opening the seed filling port of the outer layer and the middle layer; when the conventional rice with 5-8 grains is sown in holes, the seed filling openings of the outer layer, the middle layer and the inner layer are all opened. The length dimensions of the outer layer seed filling opening 103, the middle layer seed filling opening 103 and the inner layer seed filling opening 103 are equal, the length dimensions are larger than the maximum length dimension of rice seeds in design and smaller than 1.25 times of the maximum length dimension of the rice seeds, 14mm is generally taken, the width dimensions of the outer layer seed filling opening and the middle layer seed filling opening are equal, 2 times of the average thickness dimension of common rice seeds, 4mm is generally taken, and the width dimension of the inner layer seed filling opening is 2 times of the average width dimension of the common rice seeds, and 5.2mm is generally taken.
Referring to fig. 5, the trapezoidal cavity 401 is gradually enlarged from one side close to the seed filling opening 103 to the opposite side, and the wall surface of the trapezoidal cavity 401 close to the seed filling opening 103 is inclined, the inclined wall surface is a slope surface 403, meanwhile, a distance 404 of about 2.5mm is reserved between the bottom end of the slope surface 403 and the end of the seed filling opening 103, the distance is designed to limit rice seeds, and a quantitative hole is formed by the distance between the distance and the slope surface 403, the bottom side surface 405, the top side surface 406 and the bottom surface 407 (i.e. the inner end wall of the cavity tray far away from the seed filling opening) in the trapezoidal cavity 401, and the bottom side surface 405 of the quantitative hole guides the rice seeds passing through the seed filling opening 103 to be temporarily stored on the bottom side surface of the quantitative hole in a flat lying posture. Along with the gradual lifting of the bottom side surface 405, the rice seeds are dumped on the slope surface 403, and then the bottom surface 407 of the quantitative hole and the reserved distance 404 are matched, so that the bottom rice seeds on the flat slope surface are retained in the quantitative hole, and the upper rice seeds higher than the reserved distance 404 slide out of the quantitative hole under the action of dead weight, therefore, the seeds can be cleared in a flat lying posture according to the characteristic of small variation of the width and thickness of different rice seeds, and stable quantitative seed filling can be realized.
The combined cavity type rice precision hole direct seeding plate designed in the embodiment 1 can adapt to the hole seeding requirement of the same kind of rice seeds without adjusting the structural parameters of holes according to the outline dimensions of the rice seeds, and the seed filling amount is stable. Wherein the trapezoidal cavity can enable rice seeds to automatically pass through the larger side of the trapezoidal section, so that the cavity is prevented from being blocked. Meanwhile, the shape of each trapezoid cavity is a cycloid curve track, so that rice seeds in each trapezoid cavity can be conveniently and rapidly gathered at the seed outlet and discharged from the seed outlet in a cavitation mode.
Example 2
Embodiment 2 discloses a direct seeding tray with improved design based on embodiment 1, which is the same as embodiment 1 and is not described again, and is different in that referring to fig. 7, in this embodiment 2, a seed stirring tooth 5 similar to a rice seed type is further disposed at the periphery of each seed filling port 103, wherein the seed stirring tooth 5 corresponding to the outer layer seed filling port 103 is disposed on the cavity tray 1, the seed stirring tooth 5 corresponding to the inner layer seed filling port 103 is disposed on the seed sowing amount adjusting tray 2, and the seed stirring tooth 5 corresponding to the middle layer seed filling port 103 can be disposed on the cavity tray 1 or the seed sowing amount adjusting tray 2 according to design requirements.
An included angle smaller than 90 degrees but larger than 55 degrees is formed between one side surface of the seed stirring tooth 5 close to the seed filling opening 103 and the end surface of the seed metering disc, so that the seed stirring tooth 5 can apply auxiliary filling force for filling the seed filling opening 103 to rice seeds, and seed clamping is avoided. And grid lines similar to the surface textures of the rice seed meter shell are arranged on the surface of the seed stirring teeth 5, so that the friction coefficient of the seed stirring teeth is improved, the friction force of the seed stirring teeth for stirring the population is increased, the movement speed of the seed stirring teeth in contact with the rice seeds is increased, the relative movement linear speed of the rice seeds and the seed metering disc is reduced, and the seed filling performance is improved. The stirring teeth 5 are provided with a necking design from the crown part 501 to the root part 502 at one side in the rotation direction, and are matched with a convex rib ring 503 which imitates the rib structure of a rice seed meter shell on the stirring teeth crown, so that the auxiliary filling force acting range of the stirring teeth is enlarged.
The rice seed-like stirring teeth 5 designed in the embodiment 2 can improve the fluidity of the population, reduce the moving resistance of rice seeds in the population, increase the moving speed of the rice seeds in contact with the seeds, and reduce the relative moving linear speed of the rice seeds and the seed metering disc; and the stable auxiliary filling force is applied to the rice seeds to be filled, so that the seed filling performance of the holes is improved.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (8)
1. The utility model provides a combination cavity way type rice precision hole direct seeding seed metering disc which is characterized in that the seed metering disc comprises a cavity way disc, an adjusting disc and a fastening piece, wherein the adjusting disc is concentrically and rotatably connected on the end surface of the cavity way disc and is fixed through the fastening piece, a plurality of groups of radially-spaced outer, middle and inner seed filling openings are formed in an annular array shape on the end surface of the cavity way disc provided with the adjusting disc, and an opening and closing opening corresponding to each group of middle and inner seed filling openings is formed in the adjusting disc;
The combined seed filling device is characterized in that a combined cavity channel corresponding to each group of seed filling holes is arranged in the cavity channel disc, each combined cavity channel comprises three trapezoid cavity channels and one seed converging cavity channel, one ends of the three trapezoid cavity channels are respectively corresponding to the outer seed filling holes, the middle seed filling holes and the inner seed filling holes, the other ends of the trapezoid cavity channels are communicated with the seed converging cavity channels in a cycloid curve track shape, and seed outlet holes communicated with each seed converging cavity channel are formed in the circumferential surface of the cavity channel disc.
2. The combined cavity type rice precision hole direct seeding plate according to claim 1, wherein a circular groove matched with an adjusting plate is formed in the end face of the cavity type plate, and the adjusting plate is rotatably arranged in the circular groove.
3. The combined cavity type rice precision hole direct seeding plate according to claim 1, wherein the seed filling port is in a kidney-shaped shape, and the long axis direction of the seed filling port is tangential to the circular line.
4. The combined cavity type rice precision hole direct seeding plate according to claim 3, wherein the length sizes of the outer, middle and inner three seed filling openings are equal and are both larger than the maximum length size of rice seeds and smaller than 1.25 times of the maximum length size of the rice seeds, the width sizes of the outer and middle two seed filling openings are equal and are 2 times of the average thickness size of the rice seeds, and the width size of the inner layer seed filling opening is 2 times of the average width size of the rice seeds.
5. The combined cavity type rice precision hole direct seeding plate according to claim 1, wherein the trapezoidal cavity is gradually enlarged from one side close to the seed filling port to the opposite side, the wall surface of the trapezoidal cavity close to the seed filling port is obliquely arranged, and a distance for limiting rice seeds is reserved between the lower end of the wall surface and the end part of the seed filling port.
6. The combined cavity type paddy precise hole direct seeding plate according to any one of claims 1 to 5, wherein each seed charging port is provided with a seed stirring tooth similar to rice seeds at the periphery, and an included angle between the side surface of each seed stirring tooth close to the seed charging port and the end surface of the seed seeding plate is 55-90 degrees.
7. The combined cavity type rice precision hole direct seeding tray according to claim 6, wherein the surface of the seed stirring teeth is provided with grid lines which are identical to the grain of the rice seed case.
8. The combined cavity type rice precision hole direct seeding tray according to claim 7, wherein the seed stirring teeth are arranged at one side along the rotation direction from the crown part to the root part of the seed stirring teeth in a necking way, and the crown parts of the seed stirring teeth are provided with raised prismatic rings.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211552899.9A CN115606370B (en) | 2022-12-05 | 2022-12-05 | Combined cavity type precise hole direct seeding plate for rice |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211552899.9A CN115606370B (en) | 2022-12-05 | 2022-12-05 | Combined cavity type precise hole direct seeding plate for rice |
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| CN115606370B true CN115606370B (en) | 2024-05-28 |
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| CN113287395A (en) * | 2021-06-08 | 2021-08-24 | 安徽农业大学 | Inclined cavity type rice precision hill-drop seed sowing device |
| CN216415068U (en) * | 2021-10-22 | 2022-05-03 | 北京市农林科学院智能装备技术研究中心 | Precision rice direct seeding and seed metering device |
| CN115191184A (en) * | 2022-07-20 | 2022-10-18 | 安徽农业大学 | Precision hole direct seeding seed discharging disc for rice with adjustable seeding quantity |
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2022
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Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2912221Y (en) * | 2006-01-13 | 2007-06-20 | 刘晔 | Adjustable inter charging bore type seed sowing device |
| CN201383926Y (en) * | 2009-04-16 | 2010-01-20 | 陈立凡 | Adjustable multi-purpose seed taker |
| CN104686033A (en) * | 2015-04-10 | 2015-06-10 | 东北农业大学 | Reciprocation-swing type seed breeding and discharging device of discharge plate |
| CN109463081A (en) * | 2018-12-18 | 2019-03-15 | 安徽农业大学 | One kind amount of broadcasting is adjustable aspiration disc type hill-drop feed run |
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