CN112470625A - Seed metering mechanism for precision seeding and seed metering machine and precision seeding and seed metering machine - Google Patents
Seed metering mechanism for precision seeding and seed metering machine and precision seeding and seed metering machine Download PDFInfo
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- CN112470625A CN112470625A CN202011328282.XA CN202011328282A CN112470625A CN 112470625 A CN112470625 A CN 112470625A CN 202011328282 A CN202011328282 A CN 202011328282A CN 112470625 A CN112470625 A CN 112470625A
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- seed
- plate
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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
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Abstract
The invention discloses a seed sowing mechanism for a precision seed sowing machine, which comprises a discharging plate and a releasing plate which are arranged up and down; the discharge plate is provided with a plurality of seed discharging holes which are arranged in a square array and run through up and down, and the lower ends of the seed discharging holes are provided with first reinforcing ribs corresponding to the positions between every two adjacent rows of seed discharging holes; a plurality of second reinforcing ribs which are arranged in parallel and are protruded are arranged at the upper end of the releasing plate, and each second reinforcing rib is provided with a seed falling hole which is communicated up and down; the first reinforcing ribs and the second reinforcing ribs are arranged in a staggered manner; the discharge plate and the release plate can slide relatively to each other, so that the seed falling hole and the seed sowing hole are aligned up and down or staggered mutually. According to the invention, the first reinforcing rib is arranged between every two rows of seed discharging holes of the discharging plate, the second reinforcing rib is arranged on the release plate, and the first reinforcing rib and the second reinforcing rib are arranged in a staggered manner, so that the problem that the thickness of the discharging plate is limited by the thickness of seeds and the rigidity is poor and the discharging plate is easy to deform in the traditional scheme is solved on the basis of ensuring the seed discharging effect.
Description
Technical Field
The invention relates to the technical field of agricultural machinery, in particular to a seed metering mechanism for a precision seeding machine and the precision seeding machine.
Background
It should be noted that the contents described in the background art are not necessarily prior art.
When the seeds of crops such as hybrid rice are sown, in order to ensure the later growth of the seeds, the seeds need to be sown precisely, 1-2 seeds per hole are generally suitable, in order to meet the seed sowing mode, the seed sowing holes with matched sizes are required to be arranged on the discharge plate according to the shapes of the seeds, the thickness of the seeds is generally limited, the discharge plate can only be made very thin due to the small thickness of the seeds, and the discharge plate is poor in rigidity and easy to deform after long-term use.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects in the prior art, the invention provides a seed sowing mechanism for a precision seeding machine and the precision seeding machine, wherein the discharge plate has good rigidity and is not easy to deform.
The technical scheme is as follows: in order to achieve the aim, the seed sowing mechanism for the precision seed sowing machine comprises a discharging plate and a releasing plate which are arranged up and down;
the discharge plate is provided with a plurality of seed discharging holes which are arranged in a square array and run through up and down, and the lower ends of the seed discharging holes are provided with first reinforcing ribs corresponding to the positions between every two adjacent rows of the seed discharging holes;
a plurality of second reinforcing ribs which are arranged in parallel and are protruded are arranged at the upper end of the releasing plate, and each second reinforcing rib is provided with a seed dropping hole which is communicated up and down;
the first reinforcing ribs and the second reinforcing ribs are arranged in a staggered mode;
the discharging plate and the releasing plate can slide relatively to each other, so that the seed falling hole and the seed sowing hole are aligned up and down or staggered mutually.
Furthermore, the device also comprises a stand;
the release plate is slidably mounted relative to the base; the discharging plate is fixed relative to the base in the overlooking direction;
the first push-pull execution unit is arranged between the release plate and the base to drive the release plate and the base to slide relatively.
Furthermore, two sides of the machine base are respectively fixed with a guide shaft, and two sides of the release plate are fixed with linear bearings in sliding fit with the guide shafts.
Furthermore, each guide shaft is erected between the two seat bodies, and the two seat bodies are respectively fixed with a limit nail acting on the release plate.
Furthermore, the seed discharging hole is in a strip shape.
Further, the device also comprises an upper blocking unit;
the upper blocking unit comprises blocking strips arranged corresponding to each seed discharging hole; the blocking strips can move relative to the discharge plate, so that each blocking strip is vertically aligned with or staggered with the corresponding seed discharging hole.
Further, a driving assembly for driving the upper blocking unit to move relative to the discharging plate is mounted on the machine base;
the driving assembly comprises a heightening seat, a swing rod and a second push-pull executing element, and the heightening seat is fixedly installed relative to the machine base; the number of the swing rods is multiple, and two ends of each swing rod are respectively hinged to the heightening seat and the upper blocking unit;
the second push-pull executing element is arranged between the upper blocking unit and the machine base to drive the upper blocking unit and the machine base to move relatively.
A precision seeding machine comprises a seed box and the seeding mechanism, wherein the discharging plate is arranged at the bottom of the seed box; the seed box can do translational motion along a circular track.
Has the advantages that: according to the seed sowing mechanism for the precision seed sowing machine and the precision seed sowing machine, the first reinforcing rib is arranged between every two rows of seed sowing holes of the discharging plate, the second reinforcing rib is arranged on the releasing plate, and the first reinforcing rib and the second reinforcing rib are arranged in a staggered mode, so that the problem that the thickness of the discharging plate is limited by the thickness of seeds and the rigidity is poor and the discharging plate is easy to deform in the traditional scheme is solved on the basis of ensuring the seed sowing effect.
Drawings
FIG. 1 is a first view-angle structure diagram of a seed metering mechanism for a precision seed metering machine;
FIG. 2 is a second view-angle structure diagram of a seed metering mechanism for a precision seed metering machine;
FIG. 3 is a view of the layout of a take-off plate;
FIG. 4 is a block diagram of the release plate;
FIG. 5 is a layout view of a first stiffener and a second stiffener;
FIG. 6 is a structural view of a seed discharging mechanism for a precision seed feeder in accordance with a preferred embodiment;
FIG. 7 is an enlarged structural view of portion A of FIG. 6;
FIG. 8 is an enlarged structural view of portion B of FIG. 6;
FIG. 9 is a combined block diagram of the depression in the first bead and the projection in the release plate in accordance with the preferred embodiment;
FIG. 10 is a view showing the combination of the seed discharging hole, the seed discharging hole and the blocking strip in the preferred embodiment;
FIG. 11 is a structural view of a precision seeder.
In the figure: 1-a material discharging plate; 11-seed holes; 12-a first stiffener; 121-bottom surface; 122-a first transition ramp; 2-releasing the plate; 21-seed falling hole; 22-a second reinforcing rib; 221-top surface; 222-a second transition ramp; 3-a machine base; 4-a first push-pull execution unit; 51-a guide shaft; 52-linear bearings; 53-seat body; 54-a limit pin; 6-seed box; 7-upper blocking unit; 71-sealing barrier strips; 72-a fixed frame; 8-a drive assembly; 81-heightening seat; 82-a swing rod; 83-second push-pull actuator; 84-a slide.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
The seed metering mechanism for the precision seeding seed metering machine shown in attached figures 1 and 2 comprises a base 3, wherein a discharging plate 1 and a releasing plate 2 which are arranged up and down are arranged on the base 3; the release plate 2 is installed in a sliding mode relative to the base 3, and the sliding direction is the horizontal direction; the discharge plate 1 is fixed relative to the machine base 3 at least in a top view.
As shown in fig. 3, the discharge plate 1 is provided with a plurality of vertically through seed discharge holes 11 arranged in a square array, and the lower end of each discharge plate is provided with a first reinforcing rib 12 corresponding to the position between every two adjacent rows of the seed discharge holes 11; as shown in fig. 4, a plurality of parallel raised second reinforcing ribs 22 are arranged at the upper end of the release plate 2, each second reinforcing rib 22 is formed with a seed dropping hole 21 which is through up and down, the number of the seed dropping holes 21 is equal to that of the seed discharging holes 11, and the seed dropping holes 21 correspond to the seed discharging holes 11 one by one, and the outer contour of the seed dropping holes 21 is larger than that of the seed discharging holes 11 in the overlooking direction; as shown in fig. 5, the first reinforcing ribs 12 and the second reinforcing ribs 22 are arranged in a staggered manner; the discharge plate 1 and the release plate 2 can slide relatively to each other, so that the seed falling holes 21 and the seed discharging holes 11 are aligned up and down or staggered with each other, when the seed falling holes 21 and the corresponding seed discharging holes 11 are staggered with each other, the lower ends of the seed discharging holes 11 are blocked, and seeds can be accommodated in the seed discharging holes 11; when the seed falling hole 21 is aligned with the corresponding seed discharging hole 11, the lower end of the seed discharging hole 11 is opened, and the seeds in the seed falling hole fall down from the seed falling hole 21 to complete seed discharging.
Through the structure, the first reinforcing ribs 12 are arranged between every two rows of the seed discharging holes 11 of the discharge plate 1, so that the area outside the seed discharging holes on the discharge plate 1 is effectively utilized, the integral rigidity of the discharge plate 1 is effectively improved, and the problem that the discharge plate 1 is easy to bend and deform when the area is large is avoided; the top of the second reinforcing rib 22 on the release plate 2 can extend into the space between the two first reinforcing ribs 12 to seal the lower end of the seeding hole 11, and the second reinforcing rib 22 also improves the rigidity of the release plate 2, so that the release plate 2 is not easy to deform and can be made thinner.
The seed sowing mechanism also comprises a first push-pull execution unit 4 which is arranged between the release plate 2 and the machine base 3 to drive the relative sliding of the release plate and the machine base.
In order to enable the release plate 2 to slide smoothly relative to the base 3, guide shafts 51 are fixed on two sides of the base 3 respectively, and linear bearings 52 in sliding fit with the guide shafts 51 are fixed on two sides of the release plate 2.
Preferably, the first push-pull actuating unit 4 is an air cylinder, each guide shaft 51 is erected between two seat bodies 53, and a limit pin 54 acting on the release plate 2 is fixed on each of the two seat bodies 53. The release plate 2 can only move between the two limit pins 54 on the two sides of the same guide shaft 51, so that when the cylinder pushes the release plate 2 to move back and forth, the release plate 2 stops when colliding with the limit pins 54, and the positioning precision is high.
In the present embodiment, the seed discharge hole 11 is elongated and is for a long-length rice seed such as hybrid rice, and in other embodiments, the shape of the seed discharge hole 11 may be configured to fit with the seed according to the characteristics of the seed.
In a preferred embodiment, as shown in fig. 6, in order to prevent other seeds on the discharge plate 1 from falling through the seed discharge hole 11 during seed discharge, an upper blocking unit 7 is further included, and the upper blocking unit 7 can block the upper end of the seed discharge hole 11 when the seed discharge hole 11 is vertically aligned with the seed discharge hole 21;
the upper blocking unit 7 comprises blocking strips 71 which are arranged corresponding to each seed discharging hole 11, and all the blocking strips 71 are fixed on a fixed frame 72; the fixing frame 72 can drive all the blocking strips 71 to move relative to the discharge plate 1, so that each blocking strip 71 is vertically aligned with or staggered with the corresponding seed discharge hole 11. When the seeding holes 11 and the seed falling holes 21 are staggered, the blocking strips 71 and the corresponding seeding holes 11 are also staggered, so that the lower ends of the seeding holes 11 are blocked, the upper ends of the seeding holes are open, and seeds can enter the seeding holes 11 for seed filling; as shown in fig. 7, when the seed discharging hole 11 is vertically aligned with the seed dropping hole 21, the blocking strip 71 is also vertically aligned with the corresponding seed discharging hole 11, so that the upper end of the seed discharging hole 11 is blocked and the lower end is open, and the seeds in the seed discharging hole can drop from the seed dropping hole 21 to complete the seed discharging. Preferably, the longitudinal extension of the blocking strip 71 is long, so that the blocking strip 71 has a certain elasticity.
Preferably, a driving assembly 8 for driving the upper blocking unit 7 to move relative to the discharging plate 1 is mounted on the machine base 3; the driving component 8 comprises a heightening seat 81, a swing rod 82 and a second push-pull executing element 83, and the heightening seat 81 is fixedly installed relative to the machine base 3; a plurality of swing rods 82 are provided, and two ends of each swing rod 82 are respectively hinged to the heightening seat 81 and the upper blocking unit 7; the second push-pull actuator 83 is disposed between the upper blocking unit 7 and the housing 3 to drive the two to move relatively.
Through the structure, the driving assembly 8 can drive the whole upper blocking unit 7 to perform translational motion along an arc path; when the blocking strips 71 are vertically aligned with the corresponding seeding holes 11, the whole upper blocking unit 7 is positioned at the lowest point of the motion trail, and when the blocking strips 71 are staggered with the corresponding seeding holes 11, the whole upper blocking unit 7 is positioned at the highest point of the motion trail.
In actual seed filling operation, the situation that half of the seeds are in the seed discharging hole 11 and half of the seeds are outside the seed discharging hole may occur, the seeds are easy to clamp the traditional blocking structure, so that the blocking structure cannot execute blocking operation, the blocking strips 71 are not easy to be clamped when executing the blocking operation through the structure and the design of the motion track of the blocking strips 71, and because the blocking strips 71 are independently arranged one by one and the longitudinal extension length of the blocking strips 71 is longer, the blocking strips 71 have larger elasticity, even if one blocking strip 71 is clamped by the seeds, the blocking strip 71 can generate certain deformation without influencing the motion of the fixing frame 72, in addition, when the fixing frame 72 moves back and forth, the elasticity of the blocking strip 71 can enable the blocking strip to shake at high frequency and low amplitude, the shaking function can assist the blocking strip in cleaning the seeds which are half outside the hole, so that the seeds can be cleaned outside the hole or completely enter the hole, and the seeds are not damaged in the cleaning process.
Preferably, as shown in fig. 8, the swing rod 82 is mounted on the elevation base 81 through a sliding base 84, the sliding base 84 can be adjusted in height up and down on the elevation base 81, and the sliding base 84 can be fixed relative to the elevation base 81; therefore, when the blocking strips 71 are vertically aligned with the corresponding seed discharging holes 11, the gap between the lower ends of the blocking strips 71 and the upper ends of the seed discharging holes 11 can be adjusted, so that the gap is controlled within a proper range, seeds can not enter the seed discharging holes 11 when the blocking strips 71 block the upper ends of the seed discharging holes 11, and when the blocking strips 71 do translational motion along an arc line, the lower ends of the blocking strips 71 can effectively clean the seeds of which half are in the holes and half are outside the holes.
In addition, in order to prevent the seed discharging hole 11 from being blocked, the discharge plate 1 can slide up and down relative to the base 3, and a plurality of first reinforcing ribs 12 on the discharge plate 1 are formed with a concave part, as shown in fig. 9, the concave part is provided with a bottom surface 121 which is horizontally arranged, and a first transition inclined surface 122 is arranged between the bottom surface 121 and the top of the first reinforcing ribs 12; correspondingly, in the groove between two adjacent second reinforcing ribs 22 on the release plate 2, a plurality of grooves are provided with protrusions corresponding to the above-mentioned recesses, the protrusions have flat top surfaces 221, and a second transition inclined surface 222 is provided between the top surfaces 221 and the bottoms of the grooves.
With the above structure, when the seed dropping hole 21 and the corresponding seed discharging hole 11 are staggered, the convex part is embedded in the concave part, and the first transition inclined surface 122 is not contacted with the second transition inclined surface 222; when seed sowing is required (at the moment, the blocking strips 71 are vertically aligned with the corresponding seed sowing holes 11), in the process that the release plate 2 slides relative to the discharge plate 1, in the first stage, the release plate 2 moves independently until the outline of the seed sowing holes 11 completely falls into the outline of the seed falling holes 21 in the overlooking direction, at the moment, the first transition inclined plane 122 is in contact with the second transition inclined plane 222, and the seeds in the seed falling holes 21 can fall; as the release plate 2 continues to slide, the second transition slope 222 acts on the first transition slope 122, so that the raised portion lifts the discharge plate 1 until the top surface 221 contacts the top of the first rib 12, at which time the end of the blocking strip 71 passes through the corresponding seed hole 11 (as shown in fig. 10) to clear the seeds in the seed hole 11. The process can effectively prevent the seed dropping hole 21 from being blocked, does not need to add an additional execution element, and is low in cost.
The invention also provides a precision seeding machine, as shown in the attached figure 11, which comprises a seed box 6 and the seeding mechanism, wherein the discharging plate 1 is arranged at the bottom of the seed box 6; the seed box 6 can make translational motion along a circular track, and the motion frequency is high, so that the seeds in the seed box 6 can fully move when the seed box 6 is filled with the seeds, the seed holes 11 can be filled with the seeds when the seeds are filled with the seeds, and the seeds in the seed holes 11 can be shaken off when the seeds are sowed.
According to the seed sowing mechanism for the precision seed sowing machine and the precision seed sowing machine, the first reinforcing rib is arranged between every two rows of seed sowing holes of the discharging plate, the second reinforcing rib is arranged on the releasing plate, and the first reinforcing rib and the second reinforcing rib are arranged in a staggered mode, so that the problem that the thickness of the discharging plate is limited by the thickness of seeds and the rigidity is poor and the discharging plate is easy to deform in the traditional scheme is solved on the basis of ensuring the seed sowing effect.
The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention and these are intended to be within the scope of the invention.
Claims (8)
1. A seed sowing mechanism for a precision seed sowing machine is characterized by comprising a discharge plate (1) and a release plate (2) which are arranged up and down;
the discharging plate (1) is provided with a plurality of vertically through discharging holes (11) which are arranged in a square array, and the lower ends of the discharging holes are provided with first reinforcing ribs (12) corresponding to the positions between every two adjacent rows of the discharging holes (11);
a plurality of second reinforcing ribs (22) which are arranged in parallel and are protruded are arranged at the upper end of the releasing plate (2), and a seed falling hole (21) which is communicated up and down is formed in each second reinforcing rib (22);
the first reinforcing ribs (12) and the second reinforcing ribs (22) are arranged in a staggered manner;
the discharging plate (1) and the releasing plate (2) can slide relatively to align the seed dropping hole (21) and the seed discharging hole (11) up and down or stagger each other.
2. A seed metering mechanism for a precision seed feeder according to claim 1 further comprising a frame (3);
the release plate (2) is slidably mounted relative to the base (3); the discharge plate (1) is fixed relative to the machine base (3) in the overlooking direction;
the device also comprises a first push-pull execution unit (4) which is arranged between the release plate (2) and the machine base (3) to drive the release plate and the machine base to slide relatively.
3. A seed metering mechanism for a precision seed planter according to claim 2 wherein the two sides of the base (3) are respectively fixed with a guide shaft (51), and the two sides of the releasing plate (2) are fixed with linear bearings (52) which are in sliding fit with the guide shafts (51).
4. A seed metering mechanism for a precision seed feeder according to claim 3, characterized in that each guide shaft (51) is erected between two base bodies (53), and a limit pin (54) acting on the release plate (2) is fixed on each of the two base bodies (53).
5. A seed metering mechanism for a precision seed feeder according to claim 1 in which the seed metering aperture (11) is elongate.
6. A seed metering mechanism for a precision seed feeder according to claim 2 further comprising an upper blocking unit (7);
the upper blocking unit (7) comprises a blocking strip (71) which is arranged corresponding to each seed discharging hole (11); the blocking strips (71) can move relative to the discharge plate (1) so that each blocking strip (71) is vertically aligned with or staggered with the corresponding seed discharging hole (11).
7. A seed metering mechanism for a precision seed feeder according to claim 6, characterized in that a drive assembly (8) for driving the upper blocking unit (7) to move relative to the discharge plate (1) is mounted on the frame (3);
the driving assembly (8) comprises a heightening seat (81), a swing rod (82) and a second push-pull executing element (83), and the heightening seat (81) is fixedly installed relative to the machine base (3); a plurality of swing rods (82) are arranged, and two ends of each swing rod (82) are respectively hinged to the heightening seat (81) and the upper blocking unit (7);
the second push-pull execution element (83) is arranged between the upper blocking unit (7) and the machine base (3) to drive the upper blocking unit and the machine base to move relatively.
8. A precision seed feeder, characterized in that it comprises a seed box (6) and a seed feeding mechanism according to any one of claims 1-7, the discharge plate (1) being arranged at the bottom of the seed box (6); the seed box (6) can do translational motion along a circular track.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011328282.XA CN112470625B (en) | 2020-11-24 | 2020-11-24 | Seed metering mechanism for precision seeding and seed metering machine and precision seeding and seed metering machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011328282.XA CN112470625B (en) | 2020-11-24 | 2020-11-24 | Seed metering mechanism for precision seeding and seed metering machine and precision seeding and seed metering machine |
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| Publication Number | Publication Date |
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| CN112470625A true CN112470625A (en) | 2021-03-12 |
| CN112470625B CN112470625B (en) | 2022-01-18 |
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| CN202011328282.XA Active CN112470625B (en) | 2020-11-24 | 2020-11-24 | Seed metering mechanism for precision seeding and seed metering machine and precision seeding and seed metering machine |
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| CN2731939Y (en) * | 2004-06-15 | 2005-10-12 | 汪升学 | Device for seeding tobacco coated-seed in float disk and tray |
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| CN204168735U (en) * | 2014-07-30 | 2015-02-25 | 重庆钧壮农业开发有限公司 | The quick Precise sowing device of many boxlikes |
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| CN205430963U (en) * | 2016-03-23 | 2016-08-10 | 邢台市蔬菜种子公司 | Plug -seedling disseminator |
| CN107258163A (en) * | 2017-07-17 | 2017-10-20 | 农业部南京农业机械化研究所 | The accurate seeding apparatus of the special-shaped seed simple grain of mechanical revolving type |
| CN111406475A (en) * | 2020-05-14 | 2020-07-14 | 农业农村部南京农业机械化研究所 | Special-shaped seed precision sowing device and method |
| CN111480429A (en) * | 2020-05-14 | 2020-08-04 | 农业农村部南京农业机械化研究所 | Anti-blocking seed filling structure and method of agricultural precision seeding device |
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2020
- 2020-11-24 CN CN202011328282.XA patent/CN112470625B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2731939Y (en) * | 2004-06-15 | 2005-10-12 | 汪升学 | Device for seeding tobacco coated-seed in float disk and tray |
| JP2009072176A (en) * | 2007-08-24 | 2009-04-09 | Sumika Agrotech Co Ltd | Seeder |
| CN101336576A (en) * | 2008-08-07 | 2009-01-07 | 中国水稻研究所 | Split type paddy seedling cultivation sowing device |
| CN103340050A (en) * | 2013-07-19 | 2013-10-09 | 西北农林科技大学 | Sliding plate type tobacco seed sowing device |
| CN204014464U (en) * | 2014-07-15 | 2014-12-17 | 重庆钧壮农业开发有限公司 | The accurate making hole seeder of the whole dish of connecting type |
| CN204168735U (en) * | 2014-07-30 | 2015-02-25 | 重庆钧壮农业开发有限公司 | The quick Precise sowing device of many boxlikes |
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| CN205430963U (en) * | 2016-03-23 | 2016-08-10 | 邢台市蔬菜种子公司 | Plug -seedling disseminator |
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| CN111480429A (en) * | 2020-05-14 | 2020-08-04 | 农业农村部南京农业机械化研究所 | Anti-blocking seed filling structure and method of agricultural precision seeding device |
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