CN110881291A - Equal plant spacing seed sowing device - Google Patents

Equal plant spacing seed sowing device Download PDF

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Publication number
CN110881291A
CN110881291A CN201911364982.1A CN201911364982A CN110881291A CN 110881291 A CN110881291 A CN 110881291A CN 201911364982 A CN201911364982 A CN 201911364982A CN 110881291 A CN110881291 A CN 110881291A
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China
Prior art keywords
seed
wheel
plate
arc
shell
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CN201911364982.1A
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Chinese (zh)
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CN110881291B (en
Inventor
张永生
韩东亮
赵玉东
刘佳音
贾卜俨
张宇飞
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HEBEI NONGHAHA MACHINERY GROUP CO Ltd
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HEBEI NONGHAHA MACHINERY GROUP CO Ltd
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Priority to CN201911364982.1A priority Critical patent/CN110881291B/en
Publication of CN110881291A publication Critical patent/CN110881291A/en
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Publication of CN110881291B publication Critical patent/CN110881291B/en
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01CPLANTING; SOWING; FERTILISING
    • A01C7/00Sowing
    • A01C7/20Parts of seeders for conducting and depositing seed

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  • Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Sowing (AREA)

Abstract

The invention belongs to the technical field of agricultural machinery, and provides an equal-row-spacing seed sowing device which comprises a seed discharging shell, a scoop wheel, a seed guide wheel, a seed passing plate and a reverse buffer channel, wherein the scoop wheel is rotatably arranged in the seed discharging shell, the seed guide wheel is rotatably arranged in the seed discharging shell and synchronously rotates with the scoop wheel, the seed passing plate is arranged between the scoop wheel and the seed guide wheel, the reverse buffer channel is communicated with the interior of the seed discharging shell, and the seed discharging direction is opposite to the advancing direction of the seed discharging shell. Through above-mentioned technical scheme, the problem of seeding plant spacing unstability among the prior art has been solved.

Description

Equal plant spacing seed sowing device
Technical Field
The invention belongs to the technical field of agricultural machinery, and relates to a uniform planting distance seed sowing device.
Background
China is a big agricultural country, and mechanized agricultural production is a necessary trend in order to build modern agricultural production, wherein seeding plays an important role in the development of modern agriculture, and all growth and harvest are based on seeding, so that seeding can be well done, and the premise of harvest is provided. In the prior art, sowing mechanical equipment is put into production, but when the existing sowing equipment is used for sowing, a furrow opener is arranged between a sowing opening of the sowing machine and a seed bed, the vertical distance between the sowing opening and the seed bed is too large, and seeds can bounce after falling to the ground, so that the plant spacing is changed; the seed throwing port is a section of gap at the lowest part of the shell of the seed sowing device, the tangential centrifugal force of seed throwing is close to the horizontal, the vertical landing action of the seeds is mainly completed by the action of gravity, the gravity of the seeds before seed throwing is blocked by the edge of the gap, the seeds can be thrown out only when the length of the whole seeds leaves the edge of the gap and completely enters the gap section, and the seed throwing time of each seed is inconsistent because the length of each seed cannot be completely consistent, so that the row spacing is inconsistent; based on the above problems, there is a need for a sowing apparatus capable of accurately sowing seeds and maintaining the stability of the planting distance.
Disclosure of Invention
The invention provides a uniform-plant-spacing seed sowing device, which solves the problem of unstable planting distance in the prior art.
The technical scheme of the invention is realized as follows:
an equal plant spacing seed sowing device, comprising:
seed discharging;
the scoop wheel is rotatably arranged in the seed discharging shell;
the seed guide wheel is rotatably arranged in the seed discharging shell and synchronously rotates with the spoon wheel;
the seed passing plate is arranged between the scoop wheel and the seed guide wheel;
the reverse buffer channel is communicated with the inside of the seed discharging shell, and the seed discharging direction is opposite to the advancing direction of the seed discharging shell.
As a further technical solution, the seed discharging shell comprises:
a seed guiding space is formed among the seed guiding shell, the seed passing plate and the seed guiding wheel;
a seed inlet space is formed in front of the seed inlet shell, the seed passing plate and the spoon wheel;
the shell feeding device is provided with:
the seed inlet hole is used for throwing seeds.
As a further technical solution, the reverse buffer channel includes:
the arc-shaped lower sliding plate is connected and tangent with the seed guiding shell;
the buffer plate is connected and tangent with the arc-shaped lower sliding plate;
the swinging plate is hinged with the buffer plate;
and the swinging driving mechanism drives the swinging plate to swing at equal intervals.
As a further technical solution, the swing drive mechanism includes:
a connecting rod connected with the swing plate;
the contact rod is arranged at one end of the connecting rod, and the end part of the contact rod is an arc surface;
a cam, the cam surface being in contact with an end of the contact lever;
one end of the spring is connected with the connecting rod, and the other end of the spring is connected with the seed guide shell and used for pulling the connecting rod to a direction close to the cam;
the cam is provided with:
the arc-shaped bosses are circumferentially arranged and are in contact with the end faces of the contact rods.
As a further technical solution, the scoop wheel includes:
the wheel body is arranged adjacent to the seed passing plate;
the spoon teeth are circumferentially arranged on the wheel body;
the wheel body is provided with:
and the synchronous positioning holes are circumferentially arranged on the wheel body and are used for being connected with the seed guide wheel so as to ensure that the spoon wheel and the seed guide wheel synchronously rotate.
As a further technical solution, the guide wheel is provided with:
the seed guide grooves are circumferentially arranged on the seed guide wheel and correspond to the spoon teeth, and the number of the seed guide grooves is the same as that of the spoon teeth;
the circumference is provided with the synchronous locating hole on the leading wheel.
As a further technical scheme, the seed passing plate is provided with:
the seed passing notch is a cambered surface and is positioned at the circumferential edge of the seed passing plate, and the scoop wheel conveys seeds to the seed guiding wheel through the seed passing notch.
As a further technical solution, the method further comprises:
the adjusting assembly is hinged with the seed passing plate and used for adjusting the angle of the seed passing plate;
the adjustment assembly includes:
the pull strip is an arc-shaped piece, and one end of the pull strip is hinged with the seed passing plate;
the arc-shaped slide way is arranged on the guide shell, and the other end of the brace slides on the arc-shaped slide way;
and the positioning pin is used for positioning the position of the brace on the arc-shaped slide way.
As a further technical solution, the spoon teeth include:
the gear body is arranged on the wheel body;
the spoon body is connected with the tooth body, and a single seed feeding space is formed between the spoon body and the seed passing plate;
the spoon body is provided with:
the inclined curved surface inclines towards the direction close to the seed guiding wheel and is used for enabling the seeds to slide down onto the seed guiding wheel from the spoon body.
As a further technical scheme, an included angle between the edge of the seed guiding groove for enabling the seeds to slide down and the diameter of the seed guiding wheel is α -80 degrees, and the included angle is used for enabling the seeds to move before entering the arc-shaped lower sliding plate.
The working principle and the beneficial effects of the invention are as follows:
1. in the invention, in the working process of the equal-row-spacing seed sowing device, seeds firstly enter a seed sowing shell, a scoop wheel and a seed guide wheel are arranged in the seed sowing shell, but the middle part of the seed sowing shell is separated by a seed passing plate, the scoop wheel and the seed guide wheel rotate under the action of a driving shaft, the scoop wheel can support the seeds, the seeds are conveyed to the seed guide wheel through the seed passing plate by the scoop wheel after rotating, the seed guide wheel continues rotating to convey the seeds out of the seed sowing device, the seeds enter a reverse buffer channel after being conveyed out, the moving direction of the seeds is opposite to the moving direction of the seed sowing device when the seeds move in the reverse buffer channel, the speed of the seeds relative to the ground is almost static when the seeds leave the reverse buffer channel, the seeds are equivalent to be free-falling bodies, when the seeds are conveyed out of the seed sowing device without the reverse buffer channel, the seeds have the moving speed, and can bounce to cause the change of the row spacing, after the seeds grow, the spacing is uneven, and the equal-spacing seed sowing device ensures the spacing stability between the seedlings.
2. According to the invention, when the equidistant seed sowing device works, seeds enter from the seed inlet hole on the seed inlet shell, the seeds firstly enter into a seed inlet space formed by the seed inlet shell, the seed passing plate and the scoop wheel, the scoop wheel and the seed passing plate are adjacently arranged in the space, an accommodating space is arranged between the scoop wheel and the seed inlet shell, the seeds are mainly concentrated between the scoop wheel and the seed inlet shell after entering, the scoop wheel rotates to convey the seeds to a seed guiding space formed by the seed guiding shell, the seed passing plate and the seed guiding wheel through the seed passing plate, in the space, the seed guiding wheel is adjacently arranged with the seed passing plate and the seed guiding shell, and the seeds enter into the seed guiding space and are directly conveyed by the seed guiding wheel.
3. According to the seed discharging device, after seeds leave a discharging bell shell, the seeds enter a reverse buffer channel, the seeds enter the reverse buffer channel, the seeds firstly leave the discharging bell shell, the seeds have a certain initial speed at the moment, the seeds enter an arc-shaped lower sliding plate, the arc-shaped lower sliding plate is tangent to a seed discharging shell, the stability of the seeds entering the channel can be guaranteed, the seeds slide down along the arc-shaped lower sliding plate and enter a buffer plate, the buffer plate is tangent to the arc-shaped lower sliding plate, the difference is that the angle of the buffer plate relative to the arc-shaped lower sliding plate is slightly smaller, the seed speed is relatively reduced, at the end of the channel, a swing driving device drives a swing plate to swing, the swing plate can swing at equal intervals, the seeds are prevented from sliding at different speeds due to respective property differences, the different distances are.
4. According to the invention, the swing driving mechanism drives the swing plate to swing at equal intervals, so that seeds can fall at equal time, and the stability of equal plant spacing is improved.
5. According to the seed feeding device, the spoon wheel and the seed passing plate are arranged adjacently and tightly and have no gap, the wheel body is provided with a plurality of spoon teeth, the circumferences of the spoon teeth are distributed on the wheel body at equal intervals, the transportation process of seeds can be realized through rotation, meanwhile, the wheel body is provided with the synchronous positioning hole, the spoon wheel and the seed guiding wheel synchronously rotate through the synchronous positioning hole, and the seed feeding efficiency is improved.
6. According to the invention, the seed guide wheel is also provided with the synchronous positioning hole, the synchronous positioning hole of the seed guide wheel is connected with the synchronous positioning hole of the spoon wheel through the connecting pin to realize synchronous rotation, the seed guide wheel is provided with the seed guide grooves, the plurality of seed guide grooves are uniformly distributed on the circumference, the seed guide grooves correspond to the spoon teeth one by one, the spoon teeth convey seeds to be just placed in the seed guide grooves, and the seed guide grooves convey the seeds to the outside of the seed sowing device, so that the seed throwing efficiency is improved.
7. According to the seed passing device, the seed passing notch is formed in the seed passing plate and is in an arc shape, when the seed is conveyed to the seed passing notch by the spoon teeth, the seed can automatically slide into the seed guiding groove through the spoon teeth, the seed passing notch is positioned above the middle upper part of the seed sowing device, the spoon teeth can be prevented from carrying too many seeds to enter the seed guiding wheel, and the phenomenon that one pit has more seeds is avoided.
8. According to the invention, the height of the seed passing notch on the seed passing plate can be adjusted through the adjusting assembly, firstly, the brace is hinged with the seed passing plate, the brace can slide on the arc-shaped slide way, the arc-shaped slide way is fixedly arranged on the seed guiding shell, when the brace slides along the arc-shaped slide way, the seed passing plate is pulled to rotate, so that the height of the seed passing notch is adjusted, when the brace is adjusted to a proper position, the brace is fixed on the arc-shaped slide way through the positioning pin, the position of the seed passing notch is adjusted, the seed feeding quantity is influenced, when the seed passing notch is lower, the seed guiding groove is easy to generate the condition of double seeds, when the seed passing notch is higher, the seed guiding groove is single seeds, the adjustment can be carried out as required, and the.
9. According to the seed conveying device, the spoon teeth are divided into the tooth body and the spoon body, the tooth body is fixed on the wheel body, the inclined curved surface is arranged on the spoon body, the inclined curved surface is adjacent to the seed passing plate, a seed conveying space is formed between the inclined curved surface and the seed passing plate, only one seed is contained, when the spoon body moves to the seed passing notch, the supporting surface of the seed conveying space disappears, the seed can slide along the inclined curved surface, the inclined curved surface inclines towards the direction close to the seed guide wheel, and the seed can slide to the seed guide groove, so that the seed conveying process is realized.
10. In the invention, the diameter of the edge of the seed sliding contact in the seed guide groove and the seed guide wheel is α degrees to 80 degrees, so that the seed has a certain initial speed when leaving the seed guide groove and can be smoothly thrown out from the seed sowing device, and in addition, the seed is not stopped to a buffer zone in a reverse buffer channel, thereby avoiding the conditions of seedling leakage and seedling shortage.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a first isometric view of the present invention;
FIG. 2 is a second isometric view of the structure of the present invention;
FIG. 3 is an isometric view of the internal structure of the present invention;
FIG. 4 is an exploded view of the structure of the present invention;
FIG. 5 is a schematic view of the construction of the scoop wheel of the present invention;
FIG. 6 is a schematic view of the structure of the seed passing plate and the adjusting assembly of the present invention;
FIG. 7 is a schematic view of a seed guiding wheel according to the present invention;
in the figure: 1-seed discharging shell, 11-seed guiding shell, 12-seed feeding shell, 13-seed feeding hole, 2-scoop wheel, 21-wheel body, 22-scoop tooth, 221-tooth body, 222-scoop body, 223-inclined curved surface, 23-synchronous positioning hole, 3-seed guiding wheel, 31-seed guiding groove, 4-seed passing plate, 41-seed passing notch, 5-reverse buffer channel, 51-arc lower sliding plate, 52-buffer plate, 53-oscillating plate, 54-oscillating driving mechanism, 541-connecting rod, 542-contact rod, 543-cam, 544-spring, 6-adjusting component, 61-brace, 62-arc slideway, 63-positioning pin and 7-seed.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in FIGS. 1 to 7, the equal planting distance seed sowing device comprises:
arranging the shell 1;
the spoon wheel 2 is rotationally arranged in the seed sowing shell 1;
the seed guide wheel 3 is rotationally arranged in the seed sowing shell 1 and synchronously rotates with the spoon wheel 2;
the seed passing plate is arranged between the spoon wheel 2 and the seed guide wheel 3;
the reverse buffer channel 5, the reverse buffer channel 5 and the seed discharging shell 1 are communicated, and the seed discharging direction is opposite to the advancing direction of the seed discharging shell 1.
In the embodiment, in the working process of the equal-row-spacing seed metering device, seeds 7 firstly enter a seed metering shell 1, a scoop wheel 2 and a seed guide wheel 3 are installed in the seed metering shell 1, but the middle of the scoop wheel 2 and the seed guide wheel 3 are separated by a seed passing plate, the scoop wheel 2 and the seed guide wheel 3 rotate under the action of a driving shaft, the seeds 7 are supported by the scoop wheel 2, the scoop wheel 2 sends the seeds 7 to the seed guide wheel 3 through the seed passing plate after rotating, the seed guide wheel 3 continues rotating to send the seeds 7 out of the seed metering device, the seeds 7 enter a reverse buffer channel 5 after being sent out, the moving direction of the seeds 7 is opposite to the moving direction of the seed metering device when the reverse buffer channel 5 moves, when the seeds 7 leave the reverse buffer channel 5, the speed of the seeds 7 relative to the ground is almost static, the seeds 7 are equivalent to be free-falling bodies, when the seeds 7 are not sent out of the seed metering device, when the seeds fall on the seed bed directly, the seeds bounce to cause the change of the plant spacing, the spacing is uneven after the seeds 7 grow, and the equal-plant-spacing seed sowing device ensures the spacing stability between the plants and the seedlings.
Further, the seed discharging case 1 includes:
a seed guiding space is formed among the seed guiding shell 11, the seed passing plate and the seed guiding wheel 3;
a seed inlet space is formed before the seed inlet shell 12, the seed passing plate and the spoon wheel 2 enter the shell 12;
the shell 12 is provided with:
the seed inlet hole 13, the seed inlet hole 13 is used for throwing the seeds 7.
In this embodiment, when the equidistant seed metering device works, the seed 7 enters from the seed inlet hole 13 on the seed case 12, the seed 7 firstly enters into the seed inlet space formed by the seed case 12, the seed passing plate and the scoop wheel 2, in this space, the scoop wheel 2 and the seed passing plate are adjacently arranged, an accommodating space is arranged between the scoop wheel 2 and the seed case 12, the seed 7 is mainly concentrated between the scoop wheel 2 and the seed case 12 after entering, the scoop wheel 2 rotates to convey the seed 7 to the seed guide space formed by the seed guide case 11, the seed passing plate and the seed guide wheel 3 through the seed passing plate, in this space, the seed guide wheel 3 is adjacently arranged with the seed passing plate and the seed guide case 11, the seed 7 enters into the seed guide space and is directly conveyed by the seed guide wheel 3.
Further, the reverse buffer passage 5 includes:
the arc-shaped lower sliding plate 51 is connected and tangent with the seed guiding shell 11;
the buffer plate 52 is connected and tangent with the arc-shaped lower sliding plate 51;
a swing plate 53, the swing plate 53 being hinged to the cushion plate 52;
the swing drive mechanism 54 drives the swing plate 53 to swing at equal intervals by the swing drive mechanism 54.
In this embodiment, after seed 7 leaves row's clock shell, enter into reverse buffering passageway 5, seed 7 gets into reverse buffering passageway 5 process, at first leave row's shell 1, seed 7 possesses certain initial velocity this moment, seed 7 enters into arc lower sliding plate 51, arc lower sliding plate 51 is tangent with row's shell 1, can guarantee the stability that seed 7 got into the passageway, after seed 7 slided along arc lower sliding plate 51, enter into buffer board 52, buffer board 52 is tangent with arc lower sliding plate 51, the difference is that buffer board 52 is slide plate 51 angle slightly less under the relative arc, seed 7 speed slows down relatively, at the end of the passageway, by swing drive arrangement drive swinging plate 53 swing, swinging plate 53 can the equidistant swing of taking place, prevent that seed 7 is because of respective nature difference, gliding speed is fast and slow, lead to the interval difference, further promote equidistant stability.
Further, the swing drive mechanism 54 includes:
a connecting rod 541, the connecting rod 541 being connected to the swing plate 53;
the contact rod 542, the contact rod 542 is set up in one end of the tie-rod 541, the end of the contact rod 542 is the cambered surface;
a cam 543, a surface of the cam 543 contacts with an end of the contact lever 542;
a spring 544, one end of the spring 544 is connected to the connecting rod 541, and the other end is connected to the seed guiding shell 11, for pulling the connecting rod 541 to a direction close to the cam 543;
the cam 543 is provided with:
the arc boss, a plurality of arc boss circumference are arranged, and the arc boss contacts with the terminal surface of contact lever 542.
In this embodiment, the swing driving mechanism 54 drives the swing plate 53 to swing at equal intervals, so that the seeds 7 can fall at equal time, thereby improving the stability of equal planting distance, when the swing driving mechanism 54 drives the work process, the connecting rod 541 is fixedly connected with the swing plate 53, the swing plate 53 can swing along the hinge point, one end of the connecting rod 541 is provided with a contact rod 542, the end part of the contact rod 542 is a cambered surface, when the contact lever 542 slides from the bottom of the adjacent arc-shaped boss to the top of the arc-shaped boss by contacting with a plurality of arc-shaped bosses on the cam 543, the connecting rod 541 drives the swinging plate 53 to swing, one end of the spring 544 is connected with the connecting rod 541, the other end is connected with the seed guiding shell 11, the connecting rod 541 is reset and pressed on the arc-shaped bosses on the cam 543, the cam 543 continuously rotates, the connecting rod 541 will swing at equal intervals, and the stability of equal-interval seed feeding is also improved.
Further, the scoop wheel 2 includes:
the wheel body 21, the wheel body 21 and the blank passing plate are adjacently arranged;
the spoon teeth 22 are arranged on the wheel body 21 in a circumferential mode;
the wheel body 21 is provided with:
the synchronous positioning holes 23 are circumferentially arranged on the wheel body 21 and are used for being connected with the seed guiding wheel 3, so that the spoon wheel 2 and the seed guiding wheel 3 synchronously rotate.
In this embodiment, spoon wheel 2 with cross adjacent setting of blank, between paste tightly, there is not the space, has a plurality of spoon tooth 22 on the wheel body 21, and the equidistant distribution of spoon tooth 22 circumference is on wheel body 21, and the transportation of seed 7 can be realized to the rotation, simultaneously, has synchronous locating hole 23 on wheel body 21, and synchronous locating hole 23 makes spoon wheel 2 rotate with leading kind of wheel 3 is synchronous, has promoted the efficiency of throwing seeds.
Further, the seed guiding wheel 3 is provided with:
the seed guide grooves 31 are circumferentially arranged on the seed guide wheel 3 and correspond to the positions of the spoon teeth 22, and the number of the seed guide grooves 31 is the same as that of the spoon teeth 22;
the circumference is provided with synchronous locating hole 23 on leading wheel 3.
In this embodiment, also there is synchronous locating hole 23 on the seed guide wheel 3, the synchronous locating hole 23 of seed guide wheel 3 passes through the connecting pin with the synchronous locating hole 23 of scoop wheel 2 and is connected, realize synchronous rotation, there is seed guide groove 31 on seed guide wheel 3, and a plurality of seed guide groove 31 is circumference evenly distributed also, seed guide groove 31 and spoon tooth 22 one-to-one, spoon tooth 22 transports seed 7 and puts in seed guide groove 31 exactly, seed guide groove 31 carries seed 7 outside the seed metering ware, the efficiency of putting into kind has been promoted.
Further, the seed passing plate is provided with:
the seed passing notch 41 is a cambered surface and is positioned at the circumferential edge of the seed passing plate, and the scoop wheel 2 conveys the seeds 7 to the seed guiding wheel 3 through the seed passing notch 41.
In this embodiment, the seed passing notch 41 is in an arc shape, when the spoon teeth 22 convey the seeds 7 to the seed passing notch 41, the seeds 7 automatically slide into the seed guiding groove 31 through the spoon teeth 22, the seed passing notch 41 is located above the middle upper part of the seed metering device, so that the spoon teeth 22 are not required to carry too many seeds 7 to enter the seed guiding wheel 3, and the phenomenon of multiple seeds in one pit is avoided.
Further, still include:
the adjusting component 6 is hinged with the seed passing plate, and the angle of the seed passing plate is adjusted;
the adjustment assembly 6 comprises:
a brace 61, wherein the brace 61 is an arc-shaped piece, and one end of the brace is hinged with the seed passing plate;
the arc-shaped slide way 62 is arranged on the guide shell 11, and the other end of the brace 61 slides on the arc-shaped slide way 62;
and the positioning pin 63 is used for positioning the position of the pull strip 61 on the arc-shaped slide way 62 by the positioning pin 63.
In this embodiment, the height of the seed passing notch 41 on the seed passing plate can be adjusted through the adjusting assembly 6, firstly, the brace 61 is hinged to the seed passing plate, the brace 61 can slide on the arc-shaped slideway 62, the arc-shaped slideway 62 is fixedly mounted on the seed guiding shell 11, when the brace 61 slides along the arc-shaped slideway 62, the seed passing plate is pulled to rotate, so that the height of the seed passing notch 41 is adjusted, when the proper position is adjusted, the brace 61 is fixed on the arc-shaped slideway 62 by the positioning pin 63, the position of the seed passing notch 41 is adjusted, the seed feeding quantity is influenced, when the seed passing notch is low, the condition of double seeds 7 easily appears in the seed guiding groove 31, when the seed passing notch is high, the seed guiding groove 31 is single seeds 7, the adjustment can be carried out as required, and the flexibility of the device is increased.
Further, the scoop teeth 22 comprise:
the gear body 221, the gear body 221 is set in wheel body 21;
the spoon body 222 is connected with the tooth body 221, and a single seed feeding space is formed between the spoon body 222 and the seed passing plate;
the spoon body 222 is provided with:
the inclined curved surface 223, the inclined curved surface 223 inclines to the direction close to the seed guiding wheel 3, and is used for making the seed 7 slide down from the spoon body 222 to the seed guiding wheel 3.
In this embodiment, the spoon tooth 22 is divided into a tooth body 221 and a spoon body 222, the tooth body 221 is fixed on the wheel body 21, the spoon body 222 is provided with an inclined curved surface 223, the inclined curved surface 223 is adjacent to the seed passing plate, a seed feeding space is formed between the inclined curved surface 223 and the seed passing plate, only that seed 7 is contained, when the spoon body 222 moves to the seed passing notch 41, one side of the seed feeding space is supported to disappear, the seed 7 can slide down along the inclined curved surface 223, the inclined curved surface 223 inclines towards the direction close to the seed guiding wheel 3, the seed 7 can slide down to the seed guiding groove 31, and the transportation process of the seed 7 is realized.
Further, the seed guiding groove 31 is used for leading the edge of the seed 7 sliding down to form an included angle α -80 degrees with the diameter of the seed guiding wheel 3, and is used for leading the seed 7 to generate moving speed before entering the arc-shaped lower sliding plate 51.
In this embodiment, the diameter of the edge of the seed 7 sliding down in the seed guide groove 31 and the seed guide wheel 3 is α degree within the range of 10 to 80 degree, so that the seed 7 can be thrown out of the seed sowing device smoothly at a certain initial speed when leaving the seed guide groove 31, and in addition, the seed cannot stop to the buffer zone in the reverse buffer channel 5, thereby causing the condition of seedling leakage and seedling shortage.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. An equal plant spacing seed sowing device is characterized by comprising:
a seed discharge shell (1);
the scoop wheel (2) is rotationally arranged in the seed discharging shell (1);
the seed guide wheel (3) is rotatably arranged in the seed discharging shell (1) and synchronously rotates with the spoon wheel (2);
a seed passing plate (4), wherein the seed passing plate (4) is arranged between the spoon wheel (2) and the seed guiding wheel (3);
the reverse buffer channel (5), the reverse buffer channel (5) with arrange the inside intercommunication of shell (1), play kind of direction with it is opposite to arrange the shell (1) advancing direction.
2. An equal row spacing seed metering device according to claim 1, characterized in that the seed metering casing (1) comprises:
a seed guiding shell (11), wherein a seed guiding space is formed among the seed guiding shell (11), the seed passing plate (4) and the seed guiding wheel (3);
a seed inlet shell (12), wherein a seed inlet space is formed in front of the seed inlet shell (12), the seed passing plate (4) and the spoon wheel (2);
the shell (12) is provided with:
a seed inlet hole (13), wherein the seed inlet hole (13) is used for throwing seeds.
3. A plant spacing seed meter according to claim 1, characterized in that said reverse buffer channel (5) comprises:
the arc-shaped lower sliding plate (51), the arc-shaped lower sliding plate (51) is connected and tangent with the seed guiding shell (11);
the buffer plate (52) is connected and tangent with the arc-shaped lower sliding plate (51);
a swing plate (53), wherein the swing plate (53) is hinged with the buffer plate (52);
and the swinging driving mechanism (54), and the swinging driving mechanism (54) drives the swinging plate (53) to swing at equal intervals.
4. A plant spacing seed meter according to claim 3, characterized in that said swing drive mechanism (54) comprises:
a connecting rod (541), the connecting rod (541) being connected with the swing plate (53);
the contact rod (542) is arranged at one end of the connecting rod (541), and the end part of the contact rod (542) is an arc surface;
a cam (543) having a surface contacting an end of the contact lever (542);
a spring (544), wherein one end of the spring (544) is connected with the connecting rod (541), and the other end of the spring (544) is connected with the guide casing (11), and the spring is used for pulling the connecting rod (541) to a direction close to the cam (543);
the cam (543) is provided with:
the contact rod structure comprises arc-shaped bosses (5431), wherein a plurality of arc-shaped bosses (5431) are arranged circumferentially, and the arc-shaped bosses (5431) are in contact with the end face of the contact rod (542).
5. An equal row spacing seed metering device according to claim 1, characterized in that the scoop wheels (2) comprise:
the wheel body (21), the wheel body (21) and the blank passing plate (4) are arranged adjacently;
the spoon teeth (22) are circumferentially arranged on the wheel body (21);
the wheel body (21) is provided with:
the synchronous positioning holes (23) are circumferentially arranged on the wheel body (21) and are used for being connected with the seed guide wheel (21) to enable the spoon wheel (2) and the seed guide wheel (21) to synchronously rotate.
6. The equal row spacing seed sowing device according to claim 1, wherein the seed guiding wheel (3) is provided with:
the seed guide grooves (31) are circumferentially arranged on the seed guide wheel (3) and correspond to the positions of the spoon teeth (22), and the number of the seed guide grooves (31) is the same as that of the spoon teeth (22);
the upper circumference of the seed guide wheel (3) is provided with the synchronous positioning holes (23).
7. The equal planting distance seed sowing device according to claim 1, wherein the seed passing plate (4) is provided with:
the seed passing notch (41) is an arc surface and is positioned at the circumferential edge of the seed passing plate (4), and the spoon wheel (2) conveys seeds to the seed guiding wheel (3) through the seed passing notch (41).
8. The equal planting distance seed metering device of claim 1, further comprising:
the adjusting assembly (6), the adjusting assembly (6) is hinged with the seed passing plate (4) to adjust the angle of the seed passing plate (4);
the adjustment assembly (6) comprises:
the pull strip (61), the pull strip (61) is an arc-shaped piece, and one end of the pull strip (61) is hinged with the seed passing plate (4);
the arc-shaped slide way (62) is arranged on the guide shell (11), and the other end of the brace (61) slides on the arc-shaped slide way (62);
the positioning pin (63) is used for positioning the position of the brace (61) on the arc-shaped slide way (62).
9. A plant spacing seed meter according to claim 1, characterized in that said scoop teeth (22) comprise:
a gear body (221), wherein the gear body (221) is arranged on the wheel body (21);
the spoon body (222) is connected with the tooth body (221), and a single seed feeding space is formed between the spoon body (222) and the seed passing plate (4);
the spoon body (222) is provided with:
the inclined curved surface (223) inclines towards the direction close to the seed guiding wheel (3) and is used for enabling seeds to slide down onto the seed guiding wheel (3) from the spoon body (222).
10. The equal row spacing seed sowing device according to claim 1, wherein the edge of the seed guiding groove (31) for the seeds to slide down forms an angle of α -10-80 degrees with the diameter of the seed guiding wheel (3) for the seeds to move before entering the arc-shaped lower sliding plate (51).
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