CN110881291B - Equal plant spacing seed metering device - Google Patents
Equal plant spacing seed metering device Download PDFInfo
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- CN110881291B CN110881291B CN201911364982.1A CN201911364982A CN110881291B CN 110881291 B CN110881291 B CN 110881291B CN 201911364982 A CN201911364982 A CN 201911364982A CN 110881291 B CN110881291 B CN 110881291B
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- 238000007599 discharging Methods 0.000 claims abstract description 4
- 230000001360 synchronised effect Effects 0.000 claims description 20
- 230000007246 mechanism Effects 0.000 claims description 13
- 230000003139 buffering effect Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 9
- 238000009331 sowing Methods 0.000 description 9
- 238000010899 nucleation Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 3
- 238000012271 agricultural production Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000003306 harvesting Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification 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
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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 plant spacing seed metering device which comprises a seed metering shell, a bucket wheel, a seed guiding wheel, a seed passing plate and a reverse buffering channel, wherein the bucket wheel is rotatably arranged in the seed metering shell, the seed guiding wheel is rotatably arranged in the seed metering shell and synchronously rotates with the bucket wheel, the seed passing plate is arranged between the bucket wheel and the seed guiding wheel, the reverse buffering channel is communicated with the interior of the seed metering shell, and the seed discharging direction is opposite to the advancing direction of the seed metering shell. Through the technical scheme, the problem of unstable planting distance in the prior art is solved.
Description
Technical Field
The invention belongs to the technical field of agricultural machinery, and relates to an equal plant spacing seed metering device.
Background
In order to construct modern agricultural production, mechanized agricultural production is a necessary trend, wherein seeding plays an important role in modern agricultural development, and all growth and harvest are based on seeding, so that seeding can be performed well, and the method is a precondition for harvest. In the prior art, the seeding mechanical equipment is put into production, but when the existing seeding equipment is used for seeding, a furrow opener is arranged between a seed throwing port of a seeder and a seed bed, the vertical distance between the seed throwing port and the seed bed is too large, and bouncing can be generated after seeds fall to the ground, so that the plant spacing is changed; the seed feeding port is a section of gap at the lowest part of the seed metering device shell, tangential centrifugal force of seed feeding is close to horizontal, vertical landing action of seeds is mainly completed by gravity, the gravity of the seeds is blocked by the edge of the gap immediately before seed feeding, the seeds can be fed only when the length of whole seeds leaves the edge of the gap and completely enters the gap section, and the seed feeding time of each seed is inconsistent due to the fact that the lengths of the seeds are unlikely to be completely consistent, and the planting distance is inconsistent; based on the above problems, there is a need for a sowing apparatus capable of precisely sowing and maintaining the plant spacing stability.
Disclosure of Invention
The invention provides an equal plant spacing seed metering device, which solves the problem of unstable sowing plant spacing in the prior art.
The technical scheme of the invention is realized as follows:
an equal plant spacing seed metering device, comprising:
Seed metering shells;
The bucket wheel is rotatably arranged in the seed sowing shell;
the seed guiding wheel is arranged in the seed metering shell and rotates synchronously with the bucket wheel;
A seed passing plate arranged between the bucket wheel and the seed guiding wheel;
the reverse buffering channel is communicated with the inside of the seed metering shell, and the seed discharging direction is opposite to the advancing direction of the seed metering shell.
As a further technical solution, the seed metering shell includes:
the seed guiding shell, the seed passing plate and the seed guiding wheel form a seed guiding space;
Seed feeding shell, wherein seed feeding space is formed before the seed feeding shell, the seed passing plate and the bucket wheel;
The seed inlet shell is provided with:
and the seed inlet holes are used for throwing seeds.
As a further technical solution, the reverse buffer channel includes:
The arc-shaped lower sliding plate is connected with the seed guiding shell and tangent with the seed guiding shell;
the buffer plate is connected with the arc-shaped lower sliding plate and tangent with the arc-shaped lower sliding plate;
the swinging plate is hinged with the buffer plate;
And the swing driving mechanism drives the swing plate to swing at equal intervals.
As a further technical solution, the swing driving mechanism includes:
the connecting rod is connected with the swinging plate;
the contact rod is arranged at one end of the connecting rod, and the end part of the contact rod is a cambered surface;
a cam having a cam surface 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 is 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 the arc-shaped bosses are in contact with the end faces of the contact rods.
As a further aspect, the bucket wheel includes:
the wheel body is arranged adjacent to the passing plate;
The spoon teeth are circumferentially arranged on the wheel body;
The wheel body is provided with:
The synchronous positioning holes are circumferentially arranged on the wheel body and used for being connected with the seed guiding wheel, so that the bucket wheel and the seed guiding wheel synchronously rotate.
As a further technical scheme, the seed guiding 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 the number of the spoon teeth;
the circumference of the seed guiding wheel is provided with the synchronous positioning holes.
As a further technical scheme, the 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 bucket wheel conveys seeds to the seed guiding wheel through the seed passing notch.
As a further technical scheme, the method further comprises:
the adjusting component is hinged with the passing board and is used for adjusting the angle of the passing board;
the adjustment assembly includes:
The brace is an arc-shaped piece, and one end of the brace is hinged with the passing board;
the arc-shaped slideway is arranged on the seed guiding shell, and the other end of the brace slides on the arc-shaped slideway;
and the positioning pin is used for positioning the position of the brace on the arc-shaped slideway.
As a further technical solution, the spoon tooth includes:
the tooth 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 is inclined towards the direction close to the seed guiding wheel and used for enabling seeds to slide onto the seed guiding wheel from the spoon body.
As a further technical scheme, the seed guiding groove is used for enabling an included angle between the edge of the seed sliding down and the diameter of the seed guiding wheel to be alpha, wherein alpha=10-80 degrees, and is used for enabling the seed to generate a moving speed 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, seeds firstly enter a seed metering shell in the working process of the equal plant spacing seed metering device, a bucket wheel and a seed guiding wheel are arranged in the seed metering shell, but are separated by a seed passing plate in the middle, the bucket wheel and the seed guiding wheel rotate under the action of a driving shaft, the bucket wheel can support the seeds, the seeds are sent to the seed guiding wheel through the seed passing plate after rotating, the seed guiding wheel continuously rotates to send the seeds out of the seed metering device, the seeds enter a reverse buffer channel after being sent out, the moving direction of the seeds is opposite to the moving direction of the seed metering 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 free falling bodies, when the seeds are sent out of the seed metering device, the moving speed of the seeds directly fall on a seed bed, the seed guiding wheel can bounce, the plant spacing is changed, the seeds are uneven after growing, and the equal-spacing seed metering device ensures the spacing stability between plants.
2. In the invention, when the equidistant seed metering device works, seeds enter from seed inlet holes on seed inlet shells, the seeds firstly enter into a seed inlet space formed by the seed inlet shells, the seed passing plates and the bucket wheels, in the space, the bucket wheels are adjacently arranged with the seed passing plates, an accommodating space is arranged between the bucket wheels and the seed inlet shells, the seeds are mainly concentrated between the bucket wheels and the seed inlet shells after entering, the bucket wheels rotate to convey the seeds to a seed guide space formed by the seed guide shells, the seed passing plates and the seed guide wheels through the seed passing plates, in the space, the seed guide wheels are adjacently arranged with the seed passing plates and the seed guide shells, and the seeds enter into the seed guide space and are directly conveyed by the seed guide wheels.
3. In the invention, after the seeds leave the seed-metering shell, the seeds enter the reverse buffer channel, the seeds leave the seed-metering shell firstly, the seeds have a certain initial speed, the seeds enter the arc-shaped lower sliding plate, the arc-shaped lower sliding plate is tangential with the seed-metering shell, the stability of the seeds entering the channel can be ensured, the seeds enter the buffer plate after sliding down along the arc-shaped lower sliding plate, the buffer plate is tangential with the arc-shaped lower sliding plate, the angle of the buffer plate relative to the arc-shaped lower sliding plate is smaller, the seed speed is relatively slow, and finally, the swing driving device drives the swing plate to swing at equal intervals in the channel, so that the difference of the sliding speeds of the seeds is prevented, the interval is different, and the equidistant stability is further improved.
4. According to the invention, the swinging driving mechanism drives the swinging plate to swing at equal intervals, so that seeds can drop at equal intervals, the stability of equal plant distances is improved, the connecting rod is fixedly connected with the swinging plate in the driving working process of the swinging driving mechanism, the swinging plate can swing along a hinging point, one end of the connecting rod is provided with a contact rod, the end part of the contact rod is a cambered surface and is contacted with a plurality of cambered bosses on the cam, the cam rotates, the contact rod can slide to the top end of the cambered boss from the bottom of the adjacent cambered boss, the connecting rod can drive the swinging plate to swing, one end of the spring is connected with the connecting rod, one end of the spring is connected with the seed guiding shell, the connecting rod is reset and is pressed on the cambered boss on the cam, the cam continuously rotates, the connecting rod swings at equal intervals, and the stability of equal-interval seed feeding is improved.
5. According to the invention, the bucket wheels are adjacently arranged with the seed passing plate, the bucket wheels are tightly adhered to the seed passing plate, no gap exists, the plurality of spoon teeth are arranged on the wheel body, 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, and meanwhile, the synchronous positioning holes are formed in the wheel body, so that the bucket wheels and the seed guiding wheel synchronously rotate, and the seed feeding efficiency is improved.
6. In the invention, the seed guiding wheel is also provided with the synchronous positioning holes, the synchronous positioning holes of the seed guiding wheel are connected with the synchronous positioning holes of the bucket wheel through the connecting pins to realize synchronous rotation, the seed guiding wheel is provided with the seed guiding grooves, the circumference of the seed guiding grooves is uniformly distributed, the seed guiding grooves are in one-to-one correspondence with the spoon teeth, the spoon teeth transport seeds to be exactly placed in the seed guiding grooves, and the seed guiding grooves transport the seeds to the outside of the seed sowing device, so that the seed sowing efficiency is improved.
7. In the invention, the seed passing notch is in a cambered surface shape, and when the spoon teeth convey seeds to the seed passing notch, the seeds automatically slide into the seed guiding groove through the spoon teeth, and the seed passing notch is positioned above the middle of the seed metering device, so that the spoon teeth cannot carry excessive seeds to enter the seed guiding wheel, and the phenomenon of one pit and multiple seedlings 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 component, the brace is hinged with the seed passing plate, the brace can slide on the arc-shaped slide rail, the arc-shaped slide rail is fixedly arranged on the seed guiding shell, when the brace slides along the arc-shaped slide rail, the seed passing plate is pulled to rotate, so that the height of the seed passing notch is adjusted, when the height is adjusted to a proper position, the brace is fixed on the arc-shaped slide rail through the locating 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 have the condition of double seeds, and when the seed passing notch is higher, the seed guiding groove is single seed, the seed guiding groove can be adjusted according to requirements, and the flexibility of equipment is improved.
9. According to the invention, the spoon teeth are divided into the teeth body and the spoon body, the teeth 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, and 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 seeds slide along the inclined curved surface, the inclined curved surface inclines towards the direction close to the seed guiding wheel, and the seeds slide to the seed guiding 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 guiding groove and the diameter of the seed guiding wheel are taught as alpha, the alpha range is 10-80 degrees, so that when the seed leaves the seed guiding groove, a certain initial speed is provided, the seed can be smoothly thrown out of the seed metering device, and in addition, the seed can not stop to a buffer zone in a reverse buffer channel, thereby causing the situation of seedling leakage and seedling missing.
Drawings
The invention will be described in further detail with reference to the drawings and the detailed description.
FIG. 1 is a side view of the structure of the present invention;
FIG. 2 is a second axial side 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 bucket wheel of the present invention;
FIG. 6 is a schematic view of the structure of the blank passing and adjusting assembly of the present invention;
FIG. 7 is a schematic view of the structure of the seed guiding wheel of the present invention;
In the figure: 1-seed metering shell, 11-seed guiding shell, 12-seed feeding shell, 13-seed feeding hole, 2-bucket wheel, 21-wheel body, 22-spoon tooth, 221-tooth body, 222-spoon 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 buffering channel, 51-arc lower slide plate, 52-buffering plate, 53-swinging plate, 54-swinging 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 of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1 to 7, an equal plant spacing seed metering device comprises:
A seed metering shell 1;
The bucket wheel 2 is rotatably arranged in the seed metering shell 1;
The seed guiding wheel 3 is rotatably arranged in the seed metering shell 1 and synchronously rotates with the bucket wheel 2;
a seed passing plate is arranged between the bucket wheel 2 and the seed guiding wheel 3;
The reverse buffer channel 5 is communicated with the inside of the seed sowing shell 1, and the seed discharging direction is opposite to the advancing direction of the seed sowing shell 1.
In this embodiment, in the working process of the equal plant spacing seed metering device, seeds 7 firstly enter into a seed metering shell 1, in the seed metering shell 1, a bucket wheel 2 and a seed guiding wheel 3 are installed, but the middle is separated by a seed passing plate, the bucket wheel 2 and the seed guiding wheel 3 rotate under the action of a driving shaft, the bucket wheel 2 can lift the seeds 7, the bucket wheel 2 conveys the seeds 7 to the seed guiding wheel 3 through the seed passing plate after rotating, the seed guiding wheel 3 continues rotating, the seeds 7 are conveyed out of the seed metering device, and then enter into a reverse buffer channel 5, when the seeds 7 move in the reverse buffer channel 5, the moving direction is opposite to the moving direction of the seed metering device, when the seeds 7 leave the reverse buffer channel 5, the speed of the seeds 7 is almost static relative to the ground, the seeds 7 are free falling, when the seeds 7 are conveyed out of the seed metering device, the seeds have the moving speed, when the seeds fall on a seed bed directly, bouncing occurs, the distances are caused, the distances are not to be varied, after the seeds 7 grow, the distances are uneven, and the stability of the seed metering device is ensured between the seed metering plants.
Further, the seed metering shell 1 includes:
the seed guiding shell 11, the seed passing plate and the seed guiding wheel 3 form a seed guiding space;
seed feeding shell 12, seed feeding space is formed before seed feeding shell 12, seed passing plate and bucket wheel 2;
the seed feed shell 12 is provided with:
Seed inlet hole 13, seed inlet hole 13 is used for throwing into seed 7.
In this embodiment, when the equidistant seed metering device works, the seeds 7 enter from the seed inlet holes 13 on the seed inlet shell 12, the seeds 7 firstly enter into a seed inlet space formed by the seed inlet shell 12, the seed passing plate and the bucket wheel 2, in the space, the bucket wheel 2 and the seed passing plate are adjacently arranged, an accommodating space is reserved between the bucket wheel 2 and the seed inlet shell 12, the seeds 7 are mainly concentrated between the bucket wheel 2 and the seed inlet shell 12 after entering, the bucket wheel 2 rotates to convey the seeds 7 to a seed guiding space formed by the seed guiding shell 11, the seed passing plate and the seed guiding wheel 3 through the seed passing plate, in the space, the seed guiding wheel 3, the seed passing plate and the seed guiding shell 11 are arranged, and the seeds 7 enter into the seed guiding space and are directly conveyed by the seed guiding wheel 3.
Further, the reverse buffer channel 5 includes:
The arc-shaped lower sliding plate 51, and the arc-shaped lower sliding plate 51 is connected and tangent with the seed guiding shell 11;
the buffer plate 52, the buffer plate 52 is connected with the arc-shaped lower slide plate 51 and tangent;
A swinging plate 53, the swinging plate 53 being hinged with the buffer plate 52;
and a swing driving mechanism 54, wherein the swing driving mechanism 54 drives the swing plate 53 to swing at equal intervals.
In this embodiment, after the seeds 7 leave the clock shell, enter into reverse buffer channel 5, the seeds 7 enter into reverse buffer channel 5 process, at first leave seed shell 1, seed 7 possesses certain initial velocity this moment, the seeds 7 enter into arc-shaped lower slide plate 51, arc-shaped lower slide plate 51 is tangent with seed shell 1, can guarantee the stability of seed 7 entering channel, the seeds 7 are along arc-shaped lower slide plate 51 gliding back, enter into buffer plate 52, buffer plate 52 is tangent with arc-shaped lower slide plate 51, the difference is that buffer plate 52 is slightly less relative arc-shaped lower slide plate 51 angle, seed 7 speed is relatively slowed down, at the end of the channel, by swing drive arrangement drive swing plate 53 swing, swing plate 53 can equidistant take place the swing, prevent seed 7 because the difference of respective nature, the speed of sliding down is different, lead to the interval different, further promote equidistant stability.
Further, the swing drive mechanism 54 includes:
A connection rod 541, the connection rod 541 being connected to the swing plate 53;
A contact lever 542, the contact lever 542 being provided at one end of the connection lever 541, the end of the contact lever 542 being a cambered surface;
a cam 543, the surface of the cam 543 being in contact with the end of the contact lever 542;
A spring 544, one end of the spring 544 is connected with the connecting rod 541, and the other end is connected with the seed guiding shell 11, for pulling the connecting rod 541 to a direction approaching the cam 543;
the cam 543 is provided with:
the arc boss, a plurality of arc boss circumference are arranged, and arc boss and the terminal surface contact 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 intervals, thereby improving the stability of equal plant spacing, in the driving process of the swing driving mechanism 54, 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 of the contact rod 542 is a cambered surface and contacts with a plurality of arc bosses on the cam 543, the cam 543 rotates, the contact rod 542 slides from the bottom of the adjacent arc bosses to the top of the arc bosses, the connecting rod 541 drives the swing plate 53 to swing, one end of the spring 544 is connected with the connecting rod 541, one end of the spring is connected with the seed guiding shell 11, the connecting rod 541 is reset and is pressed on the arc bosses on the cam 543, and the cam 543 continuously rotates, so that the connecting rod 541 swings at equal intervals, thereby improving the stability of equal-interval seed feeding.
Further, the bucket wheel 2 includes:
The wheel body 21, the wheel body 21 is arranged adjacent to the seed passing plate;
The spoon teeth 22, a plurality of spoon teeth 22 are circumferentially arranged on the wheel body 21;
the wheel body 21 is provided with:
the synchronous locating holes 23, a plurality of synchronous locating holes 23 circumference are set on the wheel body 21, which is used to connect with the seed guiding wheel 3, so that the bucket wheel 2 and the seed guiding wheel 3 rotate synchronously.
In this embodiment, bucket wheel 2 and the adjacent setting of seed passing board, paste tightly between, do not have the space, have a plurality of spoon tooth 22 on the wheel body 21, the equidistant distribution of spoon tooth 22 circumference is on wheel body 21, and rotatory transportation process that can realize seed 7 simultaneously has synchronous locating hole 23 on wheel body 21, and synchronous locating hole 23 makes bucket wheel 2 and seed guiding wheel 3 synchronous rotation, has promoted the efficiency of throwing the seed.
Further, the seed guiding wheel 3 is provided with:
The seed guide grooves 31 are circumferentially arranged on the seed guide wheel 3, correspond to the positions of the spoon teeth 22, and have the same number as the spoon teeth 22;
the circumference of the seed guiding wheel 3 is provided with synchronous positioning holes 23.
In this embodiment, also have synchronous locating hole 23 on the seed guide wheel 3, synchronous locating hole 23 of seed guide wheel 3 passes through the connecting pin with synchronous locating hole 23 of bucket wheel 2 and connects, realizes synchronous rotation, has seed guide groove 31 on seed guide wheel 3 to a plurality of seed guide groove 31 circumference evenly distributed also, seed guide groove 31 and spoon tooth 22 one-to-one, spoon tooth 22 transport seed 7 and put just in seed guide groove 31, and seed guide groove 31 carries seed 7 outside the seed metering ware, has promoted seed feeding efficiency.
Further, the board is provided with:
the seed passing notch 41 is a cambered surface, the seed passing notch 41 is positioned at the circumferential edge of the seed passing plate, and the bucket wheel 2 conveys seeds 7 to the seed guiding wheel 3 through the seed passing notch 41.
In this embodiment, the seed passing notch 41 is in a cambered surface shape, when the spoon tooth 22 conveys the seeds 7 to the seed passing notch 41, the seeds 7 automatically slide into the seed guiding groove 31 through the spoon tooth 22, and the seed passing notch 41 is positioned above the middle of the seed sowing device, so that the spoon tooth 22 cannot carry excessive seeds 7 to enter the seed guiding wheel 3, and the phenomenon of one pit with multiple seedlings is avoided.
Further, the method further comprises the following steps:
the adjusting component 6 is hinged with the passing board, and the angle of the passing board is adjusted;
the adjustment assembly 6 includes:
the brace 61, brace 61 is the arc piece, one end is articulated with the blank passing plate;
the arc-shaped slide way 62, the arc-shaped slide way 62 is arranged on the seed guiding shell 11, and the other end of the brace 61 slides on the arc-shaped slide way 62;
The positioning pin 63, the positioning pin 63 is used for positioning the position of the brace 61 on the arc-shaped slide 62.
In this embodiment, the height of the seed passing notch 41 on the seed passing plate can be adjusted by the adjusting component 6, firstly the brace 61 is hinged with the seed passing plate, the brace 61 can slide on the arc slide way 62, the arc slide way 62 is fixedly installed on the seed guiding shell 11, when the brace 61 slides along the arc slide way 62, the seed passing plate is pulled to rotate, so that the height of the seed passing notch 41 is adjusted, when the height is adjusted to a proper position, the brace 61 is fixed on the arc slide way 62 by the locating pin 63, the position of the seed passing notch 41 is adjusted, the seed feeding quantity is affected, when the seed passing notch is lower, the seed guiding groove 31 is easy to have the condition of double seeds 7, when the seed passing notch is higher, the seed guiding groove 31 is the single seed 7, the device flexibility is improved as required.
Further, the spoon tooth 22 includes:
a tooth body 221, the tooth body 221 being provided on the wheel body 21;
The spoon body 222, 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 towards the direction approaching the seed guiding wheel 3, and the seed 7 slides 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, an inclined curved surface 223 is provided on the spoon body 222, 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, and only one seed 7 is contained, when the spoon body 222 moves to the seed passing notch 41, the supporting surface of the seed feeding space disappears, the seed 7 slides 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 slides to the seed guiding groove 31, and the conveying process of the seed 7 is realized.
Further, the seed guiding groove 31 is used for making an included angle between the edge of the seed 7 sliding down and the diameter of the seed guiding wheel 3 be alpha, and alpha=10 DEG-80 DEG, and is used for making the seed 7 generate a moving speed before entering the arc-shaped lower sliding plate 51.
In this embodiment, in the seed guiding groove 31, the diameter of the edge of the seed 7, which slides down and contacts with the seed guiding wheel 3, is taught as α, and the α range is 10 ° to 80 °, so that when the seed 7 leaves the seed guiding groove 31, a certain initial speed is provided, and the seed 7 can be smoothly thrown out from the seed metering device, or in the reverse buffer channel 5, the seed 7 does not stop to the buffer area, resulting in the situation of seedling leakage and seedling missing.
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, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (6)
1. An equal plant spacing seed metering device, comprising:
A seed metering shell (1);
the bucket wheel (2) is rotatably arranged in the seed metering shell (1);
The seed guiding wheel (3) is rotatably arranged in the seed metering shell (1) and synchronously rotates with the bucket wheel (2);
A seed passing plate (4), wherein the seed passing plate (4) is arranged between the bucket wheel (2) and the seed guiding wheel (3);
the reverse buffer channel (5) is communicated with the inside of the seed metering shell (1), and the seed discharging direction is opposite to the advancing direction of the seed metering shell (1);
The seed metering shell (1) includes:
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 feeding shell (12), wherein a seed feeding space is formed before the seed feeding shell (12), the seed passing plate (4) and the bucket wheel (2);
the seed inlet shell (12) is provided with:
a seed inlet hole (13), wherein the seed inlet hole (13) is used for inputting seeds;
the reverse buffer channel (5) comprises:
the arc-shaped lower sliding plate (51) is connected with the seed guiding shell (11) and tangent;
The buffer plate (52) is connected with the arc-shaped lower sliding plate (51) and tangent to the buffer plate (52);
a swinging plate (53), wherein the swinging plate (53) is hinged with the buffer plate (52);
a swing driving mechanism (54), wherein the swing driving mechanism (54) drives the swing plate (53) to swing at equal intervals;
the swing drive mechanism (54) includes:
A connecting rod (541), the connecting rod (541) being connected to the swing plate (53);
A contact lever (542), wherein the contact lever (542) is arranged at one end of the connecting rod (541), and the end of the contact lever (542) is a cambered surface;
A cam (543), the cam (543) surface being in contact with an end of the contact lever (542);
a spring (544), one end of the spring (544) is connected with the connecting rod (541), and the other end is connected with the seed guiding shell (11) and is used for pulling the connecting rod (541) to a direction approaching the cam (543);
the cam (543) is provided with:
The arc-shaped bosses (5431) are circumferentially arranged, and the arc-shaped bosses (5431) are in contact with the end surfaces of the contact rods (542);
the bucket wheel (2) comprises:
The wheel body (21), the wheel body (21) is arranged adjacent to the seed passing plate (4);
the spoon teeth (22) are circumferentially arranged on the wheel body (21);
The wheel body (21) is provided with:
The synchronous positioning holes (23), a plurality of synchronous positioning holes (23) are circumferentially arranged on the wheel body (21) and used for being connected with the seed guiding wheel (3), so that the bucket wheel (2) and the seed guiding wheel (3) synchronously rotate.
2. The equal plant spacing seed metering 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 wheels (3), correspond to the spoon teeth (22) in position, and are the same in number as the spoon teeth (22);
The circumference of the seed guiding wheel (3) is provided with the synchronous positioning holes (23).
3. The equal plant spacing seed metering device according to claim 1, wherein the seed passing plate (4) is provided with:
The seed passing notch (41), the seed passing notch (41) is a cambered surface and is positioned at the circumferential edge of the seed passing plate (4), and the bucket wheel (2) conveys seeds to the seed guiding wheel (3) through the seed passing notch (41).
4. The equal spacing seed metering device of claim 1, further comprising:
the adjusting component (6) is hinged with the seed passing plate (4) and is used for adjusting the angle of the seed passing plate (4);
the adjustment assembly (6) comprises:
The brace (61) is an arc-shaped piece, and one end of the brace (61) is hinged with the seed passing plate (4);
The arc-shaped slideway (62), the arc-shaped slideway (62) is arranged on the seed guiding shell (11), and the other end of the brace (61) slides on the arc-shaped slideway (62);
And the locating pin (63) is used for locating the position of the brace (61) on the arc-shaped slideway (62).
5. The equal spacing seed metering device of claim 1, wherein said scoop teeth (22) comprise:
A tooth body (221), wherein the tooth body (221) is arranged on the wheel body (21);
The spoon body (222), 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), the inclined curved surface (223) inclines towards the direction close to the seed guiding wheel (3) and is used for enabling seeds to slide onto the seed guiding wheel (3) from the spoon body (222).
6. The equal plant spacing seed metering device according to claim 1, wherein the seed guiding groove (31) is used for enabling an included angle between the edge of the seed sliding down and the diameter of the seed guiding wheel (3) to be alpha, alpha=10-80 degrees, and is used for enabling the seed to generate a moving speed before entering the arc-shaped lower sliding plate (51).
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| CN111656922B (en) * | 2020-06-30 | 2022-08-30 | 山东省农业机械科学研究院 | Self-adaptive zero-speed seed feeding device, seed feeding control method and seed sowing device |
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