CN108718622B - Key type seeding device for drill seeding in residential area - Google Patents
Key type seeding device for drill seeding in residential area Download PDFInfo
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- CN108718622B CN108718622B CN201810563487.2A CN201810563487A CN108718622B CN 108718622 B CN108718622 B CN 108718622B CN 201810563487 A CN201810563487 A CN 201810563487A CN 108718622 B CN108718622 B CN 108718622B
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C7/00—Sowing
- A01C7/08—Broadcast seeders; Seeders depositing seeds in rows
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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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Abstract
The invention discloses a key type seeding device for plot drilling, which comprises a seed storage mechanism, a seed discharging mechanism and a seed distributing mechanism, wherein the seed storage mechanism is used for storing seeds to be sown, the seed discharging mechanism comprises a key type partition plate, a movable top plate, a gear device, a stepping motor and the like, the stepping motor drives the gear device to rotate so as to drive the movable top plate to rotate, the key type partition plate is sequentially pushed open to form a seed discharging port, the seeds discharged along the seed discharging port fall into the seed distributing device under the action of a seed collecting funnel of the seed distributing mechanism, and the seeds are uniformly distributed into seeding pipes of each row under the high-speed rotation of a servo motor. The device adopts a key type sowing method, and the key type partition plates are sequentially opened for continuous sowing to replace the rotation of a conical grid plate or a belt in the traditional mechanical sowing, so that the problems of uneven sowing, seed damage and the like in a plot are solved, the sowing precision is improved, and the scientificity of a breeding test is ensured.
Description
Technical Field
The invention belongs to the field of agricultural machinery, and particularly relates to a key type seeding device for plot drilling.
Background
In the prior art, good crop varieties play a key role in the agricultural yield increase process, for example, when the crop varieties are popularized in an area, the yield increase can reach 5% -10%. At present, the contribution rate of improved varieties to agricultural production increase in developed countries is as high as about 50%, while the contribution rate of improved varieties to agricultural production increase in China is only about 30%, and the development potential is huge. In a breeding test, cell seeding plays a key role as an important part in the whole breeding process. Therefore, the mechanical seeding in the residential area is realized, the work efficiency is improved, the labor intensity is reduced, and the accuracy of the breeding test is ensured.
At present, mechanical seeding in a community mainly comprises a cone grid plate type seeding device and a cone belt type seeding device. The conical grid plate type seed sowing device performs seed sowing by breaking the grid plate through the partition plate, and the problems of uneven distribution, seed carrying, flow breaking and the like exist in the mode, so that the problems of uneven subsequent seed sowing rows, difficulty in ensuring the sowing precision and the like are caused; the cone belt type seed sowing device takes a wedge angle between a belt and a cone as a seed conveying space, and the mode has the problems that the belt rotates, seeds are easy to damage and the like, so that the cone belt type seed sowing device has great influence on precious seeds, troubles are caused to breeding, and the development of the breeding industry of China is restricted.
Disclosure of Invention
Aiming at the problems of uneven seeding, easy damage to seeds and the like of the seeding device on the existing plot seeding machine, the invention provides the key type seeding device which can prevent the seeds from being damaged by friction, form continuous and uniform seeding flow and improve the seeding precision.
The technical scheme adopted by the invention for solving the technical problems is as follows: a key type seeding device for cell drill seeding is fixedly connected with a rack of a cell seeding machine through a bolt hole of a connecting plate 4, and comprises a seed storage mechanism, a seed discharging mechanism and a seed separating mechanism, wherein the seed storage mechanism is arranged at the upper part of the seeding device and comprises a seed pouring funnel 8, a seed throwing handle 5 and a seed storage cylinder 7, the seed pouring funnel 8 is arranged in a hollow funnel form and is used for throwing seeds to be seeded, the seed storage cylinder 7 is arranged in a hollow form and is used for storing the seeds to be seeded, the seed throwing handle 5 is arranged in a lever form and is used for pressing down and lifting up to drive the seed storage cylinder to ascend and descend so as to ensure that the seeds to be seeded slide down and stop normally; the seed sowing mechanism comprises a seed sowing cone 17, a moving guide rod 18, a guide rod lantern ring 15, a compression spring 19, a fixing frame 13, a key type partition plate 20, a seed protecting plate 12, a movable top plate 22, a driving gear 25, a driven gear 11, a transmission shaft 24, a bevel gear pair 26, a stepping motor 27 and a base 10, wherein the cone 17 is fixedly connected with the connecting plate 4 through the base 10, the guide rod lantern ring 15 is fixedly connected with the connecting plate 4 through the fixing frame 13, the stepping motor drives the gear to rotate so as to drive the movable top plate 22 to rotate, and the key type partition plate 20 is sequentially jacked open to form a seed sowing opening 21; the seed separating mechanism comprises a seed collecting and collecting funnel 3, a seed guiding pipe 9, a seed separating device 2 and a servo motor 1, wherein the seed collecting funnel 3 is fixedly connected onto the connecting plate 4, the seed separating device 2 is used for distributing seeds falling from the seed collecting funnel 3, and the servo motor 1 is used for uniformly distributing the seeds into the seeding pipes in different rows.
Furthermore, the cone 17 of the seed sowing mechanism is arranged to be positioned at the central position of the seed sowing mechanism, the cone tip of the cone is upward, the upper end of the cone corresponds to the position of the seed storage cylinder 7 of the seed storage mechanism, and the lower end of the cone is fixedly connected with the connecting plate 4 through the base 10.
Furthermore, a plurality of motion guide rods 18 of the seed metering mechanism are vertically and uniformly arranged on the circumference of the guide rod lantern ring 15 and are provided with threads, the upper ends of the motion guide rods 18 are connected with the guide rod lantern ring 15 and are provided with nuts 14 and gaskets 16 for limiting, the lower ends of the motion guide rods 18 are welded on the key type partition plate 20, and when the key type partition plate 20 is sequentially jacked up by the movable top plate 22, the motion guide rods 18 move up and down along the guide rod lantern ring 15.
Furthermore, a compression spring 19 of the seed sowing mechanism is nested on the moving guide rod 18, the upper end of the compression spring is in contact with the guide rod lantern ring 15, the lower end of the compression spring is in contact with the key type partition plate 20, and after the jacked key type partition plate 20 finishes seed sowing, the compression spring falls down under the action of a preset spring stress of the compression spring 19 to play a reset role.
Furthermore, a plurality of key type partition plates 20 of the seed discharging mechanism are vertically and uniformly arranged at the lower part of the movement guide rod 18, each key type partition plate 20 comprises an inner side partition plate 30 and an outer side key plate 29, wherein the sum of the inclination angle theta of the lower end of the inner side partition plate 30 and the conical half angle of the cone 17 is 90 degrees, the inner side partition plates 30 and the cone 17 are mutually matched to form a seed storage space before seed discharging, and the lower part of the outer side key plate 29 is of a semicircular structure and is a contact part of the movable top plate 22.
Further, the front end boss 31 of the movable top plate 22 of the seed metering mechanism adopts a double-arc-straight-line structure, the middle part is a straight line section, the two sides are arc sections, and the radian of the front end boss 31 is equal to the radians of the two key type partition plates 20.
Further, when the straight line section of the movable top plate 22 is overlapped with the middle of the key-type partition plate 20, the arc on the front side slides out of the key-type partition plate 20 on the front side, and the arc on the other side just slides into the key-type partition plate 20 on the rear side, so that the continuous opening of the key-type partition plate 20 is realized to form a seed discharging port 21, and the continuity of seed flow is ensured.
Further, the base 10 of the seed metering mechanism is provided with a middle cylindrical table and rectangular plates uniformly distributed on the periphery, the cylindrical table is used for placing the cone 17, the diameter of the cylindrical table is equal to the maximum diameter of the cone 17, and the rectangular plates are fixed on the connecting plate 4 through bolts and are used for fixedly supporting the whole seed metering mechanism.
Further, the inner hole surface of the driven gear 11 of the seed metering mechanism, the side surface of the cylindrical table of the base 10 and the outer arc surface of the inner partition 30 together form a hollow annular space, which is a seed metering space 28.
Furthermore, the seed collecting funnel 3 of the seed separating mechanism is fixedly connected to the connecting plate 4, and the diameter of the large end of the seed collecting funnel is larger than the seed discharging space 28.
The invention has the beneficial effects that: the device adopts key formula seeding method to open in proper order with key formula baffle and sow in succession, and cone check dish or belt are rotatory when replacing traditional mechanical seeding, have solved the seeding of district inhomogeneous, seed damage scheduling problem, have improved the seeding precision, have guaranteed the experimental scientificity of breeding.
Drawings
FIG. 1 is a schematic view of the overall construction of a key-type seed planting device for cell drilling of the present invention;
FIG. 2 is a schematic view of the seed feed mechanism of a key-type seed sowing device for cell drilling of the present invention;
FIG. 3 is a top plan view of a seed feed mechanism of a key-type seed metering device for cell drilling of the present invention;
FIG. 4 is a schematic view of the construction of a key-type spacer of a feed mechanism of a key-type seed planting device for cell drilling according to the present invention;
FIG. 5 is a schematic structural view of a movable top plate of a seed discharge mechanism of a key-type seed sowing device for cell drilling according to the present invention;
FIG. 6 is a schematic structural view of a base of a seed metering mechanism of a key-type seed sowing device for cell drilling according to the present invention;
wherein the reference numerals are:
1-servo motor, 2-seed divider, 3-seed collecting funnel, 4-connecting plate, 5-seed throwing handle, 6-seed discharging mechanism, 7-seed storing barrel, 8-seed pouring funnel, 9-seed guiding tube, 10-base, 11-driven gear, 12-seed protecting plate, 13-fixing frame, 14-nut, 15-guide rod lantern ring, 16-gasket, 17-cone, 18-motion guide rod, 19-compression spring, 20-key type partition plate, 21-seed discharging opening, 22-movable top plate, 23-fixing seat, 24-transmission shaft, 25-driving gear, 26-bevel gear pair, 27-stepping motor, 28-seed discharging space, 29-outer side key plate, 30-inner side partition plate and 31-front end boss.
Detailed Description
In order to make the implementation objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the accompanying drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are only some, but not all embodiments of the invention. The embodiments and the directional terms described below with reference to the drawings are exemplary and intended to be used in the explanation of the invention, and should not be construed as limiting the invention. 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.
In one broad embodiment of the invention, a key-type seeding device for plot drilling is fixedly connected with a frame of a plot seeding machine through a bolt hole of a connecting plate and mainly comprises a seed storage mechanism, a seed discharging mechanism and a seed distributing mechanism.
Wherein, deposit the mechanism and set up in seeder's upper portion, from the top down mainly include the funnel of falling kind, throw kind handle and deposit kind a section of thick bamboo etc.. The seed pouring funnel is arranged in a hollow funnel form and is used for throwing seeds to be sowed; the seed storage cylinder is arranged in a hollow form and is used for storing seeds to be sowed; the seed throwing handle is arranged in a lever mode and used for pressing down and lifting up to drive the seed storage barrel to ascend and descend, so that the seeds to be sowed can slide down and stop normally, and the seed storage operation can be finished.
The seed sowing mechanism is a core component of the seed sowing device, is arranged in the middle of the seed sowing device and below the seed storage mechanism, and mainly comprises a seed sowing cone, a moving guide rod, a guide rod lantern ring, a compression spring, a fixed frame, a key type partition plate, a seed protecting plate, a movable top plate, a gear device, a stepping motor, a base and the like. Wherein, the cone is fixedly connected with the connecting plate through the base; the guide rod lantern ring is fixedly connected with the connecting plate through a fixing frame; the stepping motor provides power for the seed sowing mechanism, drives the gear device to rotate so as to drive the movable top plate to rotate, and sequentially jacks up the key type partition plate to form a seed sowing port so as to finish seed sowing operation.
The gear device comprises a driving gear, a driven gear, a transmission shaft and a bevel gear pair.
The driven gear, the base and the key type partition plate jointly form a hollow circular space which is called a seed sowing space. The seed separating mechanism is arranged at the lower part of the seeding device and below the seed discharging mechanism and mainly comprises a seed collecting funnel, a seed guiding pipe, a seed separating device and a servo motor from top to bottom. The seed collecting funnel is fixedly connected to the connecting plate, the position of the seed collecting funnel is set to correspond to the seed discharging space, and the diameter of the large end of the seed collecting funnel is larger than that of the seed discharging space; the seed divider is used for distributing the seeds falling from the seed collecting funnel; the servo motor is used for evenly distributing seeds into the sowing pipes in each row so as to complete the seed distribution operation.
When the small-area seeder works, a preset amount of seeds are poured into the seed storage barrel, when the small-area seeder reaches a seeding position, the seed throwing handle is pressed down, the seed storage barrel is lifted, and the seeds slide down along the cone and are uniformly distributed around the cone; when the seeds slide down along the cone, the stepping motor is started, the driving gear and the driven gear are driven to rotate through the transmission shaft after the direction of the seeds is changed by the bevel gears, the movable top plate rotates along the driven gear, the key type partition plates are sequentially pushed open to form a seed discharging port, the seeds are uniformly discharged along the seed discharging port, and the key type partition plates are reset under the action of the compression spring to prepare for next seed discharging; the seeds discharged along the seed discharging port fall into the seed separator under the action of the seed collecting funnel and are uniformly distributed into the seeding pipes of each row under the high-speed rotation of the servo motor.
Specific embodiments of the present invention will be described in detail below with reference to the accompanying fig. 1-6.
As shown in figure 1, the key type seeding device for plot drilling of the invention is fixedly connected with a frame of a plot seeding machine through a bolt hole of a connecting plate 4, mainly comprises a seed storage mechanism, a seed discharging mechanism and a seed distributing mechanism, wherein,
the seed storage mechanism is arranged at the upper part of the seeding device and mainly comprises a seed pouring funnel 8, a seed throwing handle 5, a seed storage barrel 7 and the like from top to bottom. The seed pouring funnel 8 is arranged in a hollow funnel form and is used for throwing seeds to be sown; the seed storage cylinder 7 is arranged in a hollow form, the upper end of the seed storage cylinder is connected with a seed pouring funnel 8 and is used for storing seeds to be sowed; the seed throwing handle 5 is arranged in a lever form and is in a Y shape on the whole, one end of the seed throwing handle is used for pressing and lifting, the other end of the seed throwing handle is clamped on two sides of the seed storing cylinder 7 respectively, and the seed throwing handle 5 drives the seed storing cylinder 7 to ascend and descend when being pressed and lifted, so that seeds to be sowed normally slide down and stop, and then the seed storing operation is completed as required.
The seed sowing mechanism is a core part of the invention, is arranged in the middle of the sowing device and below the seed storage mechanism, and mainly comprises a seed sowing cone 17, a movement guide rod 18, a guide rod lantern ring 15, a compression spring 19, a fixed frame 13, a key type clapboard 20, a seed protecting plate 12, a movable top plate 22, a driving gear 25, a driven gear 11, a transmission shaft 24, a bevel gear pair 26, a stepping motor 27, a base 10 and the like.
As shown in figures 1 and 2, the cone 17 is arranged at the central position of the seed metering mechanism, the cone tip of the cone is upward, the upper end of the cone corresponds to the position of the seed storage cylinder 7 of the seed storage mechanism, and the lower end of the cone is fixedly connected with the connecting plate 4 through the base 10.
As shown in FIG. 2, the guide rod collar 15, the motion guide rod 18, the compression spring 19, the key type partition 20 and the seed protection plate 12 are arranged outside the seed metering mechanism from top to bottom.
The guide rod lantern ring 15 is horizontally arranged and welded on the fixed frame 13.
The plurality of motion guide rods 18 are vertically and uniformly arranged on the circumference of the guide rod lantern ring 15 and are provided with threads, the upper ends of the motion guide rods 18 are connected with the guide rod lantern ring 15 and are provided with nuts 14 and gaskets 16 to play a limiting role, the lower ends of the motion guide rods are welded on the key type partition plate 20, and the motion guide rods 18 can move up and down along the guide rod lantern ring 15.
Preferably, the number of the movement guide rods 18 may be 29, but this is only an example and not a limitation of the present invention.
The compression spring 19 is nested on the motion guide rod 18, the upper end of the compression spring is contacted with the guide rod lantern ring 15, and the lower end of the compression spring is contacted with the key type clapboard 20, so that the reset effect is realized.
Like the motion guide rod 18, a plurality of key type partition plates 20 are also arranged and vertically and uniformly arranged at the lower part of the motion guide rod 18, as shown in fig. 4, each key type partition plate 20 comprises an inner side partition plate 30 and an outer side key plate 29, wherein the sum of the inclination angle theta of the lower end of the inner side partition plate 30 and the conical half angle of the cone 17 is 90 degrees, the inner side partition plate 30 and the cone 17 are mutually matched to form a seed storage space before seeding, and the lower part of the outer side key plate 29 is of a semicircular structure and is a contact part of the movable top plate 22.
Preferably, the number of keyed spacers 20 may be 29, but this is by way of example only and is not intended as a limitation on the present invention.
As shown in fig. 5, the front end boss 31 of the movable top plate 22 adopts a double-arc-straight-line structure, the middle part is a straight line section, the two sides are arc sections, and the radian of the front end boss 31 is equal to the radians of the two key type partition plates 20; when the straight line section of the movable top plate 22 is overlapped with the middle of the key-type partition plate 20, the arc at the front side slides out from the key-type partition plate 20 at the front side, and the arc at the other side just slides into the key-type partition plate 20 at the back side, so that the continuous opening of the key-type partition plate 20 is realized to form the seed discharging port 21, and the continuity of the seed flow is ensured.
The movable top plate 22 is fixed on the fixed seat 23 by bolts, and the vertical position can be adjusted by the long slotted hole, thereby adjusting the size of the seed discharging port 21.
The seed protection plate 12 is positioned above the driven gear 11, the inner side of the seed protection plate is equal to the aperture of the driven gear 11, the seeds are prevented from splashing after being discharged through the seed discharging port 21, and the inner side of the seed protection plate 12 is provided with a flexible material, so that collision and damage in the falling process of the seeds are prevented.
As shown in fig. 6, the base 10 is provided in the form of a middle cylindrical table, rectangular plates are uniformly distributed around the middle cylindrical table, the cylindrical table is used for placing the cone 17, the diameter of the cylindrical table is equal to the maximum diameter of the cone 17, and the middle hollow cylindrical connecting part spans across the seed metering space 28 shown in fig. 3.
The arrangement of the cylindrical connection mode is to avoid blocking seed falling in the seeding process, and rectangular plates which are uniformly distributed at the periphery are fixed on the connecting plate 4 through bolts and are used for fixedly supporting the whole seeding mechanism.
Preferably, the number of the rectangular plates may be 6, but this is only an example and not a limitation of the present invention.
As shown in fig. 3, the seed discharging space 28 is a hollow circular space formed by the inner hole surface of the driven gear 11, the side surface of the cylindrical table of the base 10 and the outer arc surface of the inner partition 30, and the seeds falling from the seed discharging port 21 directly fall into the seed collecting funnel 3 through the seed discharging space 28.
The seed separating mechanism is arranged at the lower part of the seeding device and below the seed discharging mechanism and mainly comprises a seed collecting funnel 3, a seed guiding pipe 9, a seed separating device 2 and a servo motor 1 from top to bottom.
The seed collecting funnel 3 is fixedly connected on the connecting plate 4, and the diameter of the large end of the seed collecting funnel is larger than the seed discharging space 28.
When the small-area seeder works, a preset amount of seeds are poured into the seed storage barrel 7, when the small-area seeder reaches a seeding position, the seed throwing handle 5 is pressed down, the seed storage barrel 7 is lifted, and the seeds slide down along the cone 17 and are uniformly distributed around the cone 17; when the seeds slide down along the cone 17, the stepping motor 27 is started, the seeds are reversed through the bevel gear pair 26 and then drive the driving gear 25 and the driven gear 11 to rotate through the transmission shaft 24, the movable top plate 22 rotates along with the driven gear 11 to sequentially push open the key type partition plate 20 to form a seed discharging port 21, the seeds are uniformly discharged along the seed discharging port 21, and the key type partition plate 20 is reset under the action of the compression spring 19 to prepare for next seed discharging; the seeds discharged along the seed discharging port 21 fall into the seed separator 2 under the action of the seed collecting funnel 3 and are uniformly distributed into the seeding pipes of each row under the high-speed rotation of the servo motor 1. Finally, it should be pointed out that: although the preferred embodiments of the present invention have been described above by way of illustration, the scope of the present invention is not limited to the above description, and it will be understood by those skilled in the art that any modification and variation may be made within the scope of the present invention without departing from the spirit and spirit of the teaching of the present invention.
Claims (10)
1. A key-type seeding device for drill seeding in a community is fixedly connected with a frame of a community seeder through a bolt hole of a connecting plate (4), comprises a seed storage mechanism, a seed discharging mechanism and a seed separating mechanism, and is characterized in that,
the seed storage mechanism is arranged at the upper part of the sowing device and comprises a seed pouring funnel (8), a seed throwing handle (5) and a seed storage barrel (7), the seed pouring funnel (8) is arranged in a hollow funnel form and used for throwing seeds to be sown, the seed storage barrel (7) is arranged in a hollow form and used for storing the seeds to be sown, and the seed throwing handle (5) is arranged in a lever form and used for pressing down and lifting up to drive the seed storage barrel to ascend and descend so as to ensure that the seeds to be sown slide down and stop normally;
the seed sowing mechanism comprises a seed sowing cone (17), a moving guide rod (18), a guide rod sleeve ring (15), a compression spring (19), a fixing frame (13), a key type partition plate (20), a seed protecting plate (12), a movable top plate (22), a driving gear (25), a driven gear (11), a transmission shaft (24), a bevel gear pair (26), a stepping motor (27) and a base (10), wherein the cone (17) is fixedly connected with the connecting plate (4) through the base (10), the guide rod sleeve ring (15) is fixedly connected with the connecting plate (4) through the fixing frame (13), the stepping motor (27) drives the gear to rotate so as to drive the movable top plate (22) to rotate, and the key type partition plate (20) is sequentially pushed open to form a seed sowing opening (21);
the seed separating mechanism comprises a seed collecting funnel (3), a seed guiding pipe (9), a seed separating device (2) and a servo motor (1), wherein the seed collecting funnel (3) is fixedly connected onto the connecting plate (4), the seed separating device (2) is used for distributing seeds falling from the seed collecting funnel (3), and the servo motor (1) is used for uniformly distributing the seeds into the seeding pipes of different rows.
2. A sowing apparatus according to claim 1, wherein the cone (17) of the sowing mechanism is arranged to be located at the central position of the sowing mechanism, the cone tip of the cone is upward, the upper end of the cone corresponds to the position of the seed storage barrel (7) of the sowing mechanism, and the lower end of the cone is fixedly connected with the connecting plate (4) through the base (10).
3. The seeding device according to claim 1, characterized in that the seeding mechanism has a plurality of motion guide rods (18) vertically and uniformly arranged on the circumference of the guide rod sleeve ring (15) and provided with threads, the upper ends of the motion guide rods (18) are connected with the guide rod sleeve ring (15) and have a nut (14) and a gasket (16) for limiting, the lower ends are welded on the key type partition plate (20), and when the key type partition plate (20) is sequentially jacked up by the movable top plate (22), the motion guide rods (18) move up and down along the guide rod sleeve ring (15).
4. A sowing apparatus according to claim 1, wherein the compression spring (19) of the sowing mechanism is nested on the moving guide rod (18), the upper end of the compression spring is contacted with the guide rod sleeve ring (15), the lower end of the compression spring is contacted with the key-type clapboard (20), and when the lifted key-type clapboard (20) finishes sowing, the compression spring (19) is acted by the preset spring stress to fall down for resetting.
5. The sowing apparatus according to claim 1, wherein the seed-metering mechanism is provided with a plurality of key-type partitions (20) vertically and uniformly arranged at the lower part of the movement guide rod (18), the key-type partitions (20) comprise inner partitions (30) and outer key plates (29), wherein the sum of the inclination angle theta of the lower ends of the inner partitions (30) and the conical half angle of the cone (17) is 90 degrees, the inner partitions (30) and the cone (17) are mutually matched to form a seed storage space before seed metering, and the lower parts of the outer key plates (29) are in a semicircular structure and are contact parts of the movable top plate (22).
6. A sowing apparatus according to claim 1, wherein the front end boss (31) of the movable top plate (22) of the sowing mechanism adopts a double circular arc-straight line structure, the middle part is a straight line section, the two sides are circular arc sections, and the radian of the front end boss (31) is equal to the radians of the two key type partition plates (20).
7. A sowing apparatus according to claim 6, wherein when the straight line section of the movable top plate (22) is overlapped with the middle of the key-type partition (20), the arc on the front side slides out from the front key-type partition (20), and the arc on the other side slides into the key-type partition (20) at the back, so that the continuous opening of the key-type partition (20) is realized to form a sowing port (21), and the continuity of the seed flow is ensured.
8. Seeding apparatus according to claim 1, characterised in that the base (10) of the seeding mechanism is provided in the form of a central cylindrical table, around which rectangular plates are evenly distributed, the central cylindrical table being used for placing a cone (17) with a diameter equal to the maximum diameter of the cone (17), the rectangular plates being fixed on the connecting plate (4) by means of bolts for fixedly supporting the entire seeding mechanism.
9. A sowing apparatus according to claim 8, wherein the inner hole surface of the driven gear (11) of the sowing mechanism, the side surface of the cylindrical table of the base (10) and the outer arc surface of the inner partition (30) together form a hollow annular space, which is a sowing space (28).
10. A sowing apparatus according to claim 9, wherein the seed collecting funnel (3) of the seed separating mechanism is fixedly connected to the connecting plate (4) and has a larger diameter at its larger end than the sowing space (28).
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| CN108718622B true CN108718622B (en) | 2020-06-30 |
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| CN2162079Y (en) * | 1993-05-28 | 1994-04-20 | 张洵清 | Multi-stage limited moving plate seedling-planting maching |
| RU138908U1 (en) * | 2013-12-10 | 2014-03-27 | Государственное научное учреждение Всероссийский научно-исследовательский институт масличных культур имени В.С. Пустовойта Российской академии сельскохозяйственных наук | SEEDING UNIT OF SELECTION SEEDER |
| CN204616336U (en) * | 2015-04-20 | 2015-09-09 | 中国农业大学 | A kind of not rounded seed single-grain precision seeding apparatus |
| CN106576531A (en) * | 2015-10-15 | 2017-04-26 | 四川农业大学 | Novel seed metering device |
| CN206260259U (en) * | 2016-12-16 | 2017-06-20 | 河北省农林科学院旱作农业研究所 | Experiment power single line sowing machine |
| CN206389741U (en) * | 2017-01-11 | 2017-08-11 | 沧州市农林科学院 | A kind of seed sorting mechanism of cell drill for sowing in lines |
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| CN108718622A (en) | 2018-11-02 |
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