CN115152372A - Rotary suction-assisting type double-row precision seed sowing device - Google Patents
Rotary suction-assisting type double-row precision seed sowing device Download PDFInfo
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- CN115152372A CN115152372A CN202211068745.2A CN202211068745A CN115152372A CN 115152372 A CN115152372 A CN 115152372A CN 202211068745 A CN202211068745 A CN 202211068745A CN 115152372 A CN115152372 A CN 115152372A
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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
Abstract
The invention belongs to the technical field of agricultural machinery, and relates to a rotary suction-assisting type double-row precision seed sowing device which mainly comprises an outer shell, a comb finger seed plate, a seed plate bearing, a middle shell, a seed cleaning block, a suction-assisting rotary pipe, a comb finger ring, an outer rotary pipe and a power belt pulley; the invention can obviously improve the air extraction efficiency through the entrainment effect of the suction-assisting rotating pipe, further reduce the rotating speed of an external fan and the operation energy consumption, enhance the air suction seed-sucking effect, simultaneously carry out high-speed precise seed-metering on two seeding rows by the two comb finger type seed disks rotating in different directions, further reduce the electric energy consumption through reducing the number of driving motors, and has the advantages of compact structure and high operation efficiency.
Description
Technical Field
The invention belongs to the technical field of agricultural machinery, and particularly relates to a rotary suction-assisting type double-row precision seed sowing device.
Background
At present, the high-speed precision seed sowing is mainly carried out by an air-suction type seed sowing device, when the high-speed seed sowing operation is carried out, an external driving motor and an electric fan rotate at high speed and respectively provide power input and air suction for the air-suction type seed sowing device, and a tractor power supply provides power supply for the driving motor and the electric fan. Under the condition of long-time continuous operation, the electric energy of the tractor cannot support the continuous electric energy consumption of a driving motor and an electric fan of the air-suction seed metering device; meanwhile, the air-suction seed sowing device installed on the sowing unit of the sowing machine can only carry out high-speed precision seed sowing on one sowing row, the whole size of the sowing machine is increased, the electric energy consumption of a tractor is further increased, and the continuous sowing operation efficiency is reduced. Therefore, there is a need for an air-aspiration seed sowing device suitable for high-speed precision seeding operation, which can reduce power consumption and realize simultaneous multi-row seed sowing.
Disclosure of Invention
The invention aims to solve the problems that the continuous operation energy consumption of an air-suction type seed sowing device is high and multi-row seed sowing cannot be realized during high-speed precision seeding in the technical background, and provides a rotary suction-assisting type double-row precision seed sowing device.
The rotary suction-assisting double-row precision seed sowing device is characterized by mainly comprising an outer shell 1, a comb finger seed plate 2, a seed plate bearing 3, a middle shell 4, a seed cleaning block 5, a suction-assisting rotary pipe 6, a comb finger ring 7, an outer rotary pipe 8 and a power belt pulley 9;
the outer shell 1 mainly comprises a seed inlet 101, an upper partition plate 102, a lower partition plate 103 and a seed outlet 104, wherein the seed inlet 101 and the seed outlet 104 are rectangular through holes, the upper partition plate 102 and the lower partition plate 103 are both vertically arranged, a gap of 10-28mm is formed between the upper partition plate 102 and the lower partition plate 103, a reasonable gap can ensure that seeds adsorbed on a finger-shaped seed plate 2 cannot be scraped off by the upper partition plate 102 and the lower partition plate 103 during seed sowing operation, the outer shell 1 covers the finger-shaped seed plate 2 and does not interfere with the rotation of the finger-shaped seed plate 2, the front outer shell 1 and the rear outer shell 1 are respectively and fixedly connected to the front part and the rear part of the middle shell 4, and the front outer shell 1 and the rear outer shell 1 are arranged in a left-right symmetry manner;
the comb finger type seed disc 2 comprises a disc surface 201, circular seed suction holes 202, a seed disc pipe 203 and seed disc cylindrical teeth 204, wherein the disc surface 201 and the seed disc pipe 203 are coaxially arranged, 24 to 30 circular seed suction holes 202 are uniformly arranged along the circumferential direction of the disc surface 201, the circular seed suction holes 202 are positioned at the inner side of the circular ring of the seed disc pipe 203, 50 to 66 seed disc cylindrical teeth 204 are uniformly arranged along the circumferential direction of the ring surface of the seed disc pipe 203, and the front comb finger type seed disc 2 and the rear comb finger type seed disc 2 are rotationally connected with a middle shell 4 through seed disc bearings 3;
the middle shell 4 comprises an outer circular ring 401, an inner cylinder 402, an upper circular tube 403, a bearing I404, a bearing II 405, a lower circular hole 406 and a bearing III 407, wherein the outer circular ring 401 and the inner cylinder 402 are coaxially arranged, the upper circular tube 403 and the lower circular hole 406 are coaxially arranged, the axial leads of the upper circular tube 403 and the lower circular hole 406 are superposed with the axial lead of the inner cylinder 402, the bearing I404 and the bearing II 405 are respectively fixedly connected at the upper end and the lower end of the inner part of the upper circular tube 403, and the bearing III 407 is fixedly connected at the lower circular hole 406;
the seed cleaning blocks 5 comprise air blocking circular arc surfaces 501 and fixed circular arc plates 502, the seed cleaning blocks 5 are made of plastics, the plastics are POM, PA or PTFE, the self-lubricating property of the plastics can reduce the friction damage between the seed cleaning blocks 5 and a contact object, the left seed cleaning blocks 5 and the right seed cleaning blocks 5 are symmetrically arranged at the inner lower part of the middle shell 4, the fixed circular arc plates 502 are fixedly connected with the inner cylindrical surface of the inner cylinder 402, the air blocking circular arc surfaces 501 of the left seed cleaning blocks 5 and the right seed cleaning blocks 5 are respectively tightly attached to the circular plate surfaces 201 of the comb finger type seed plates 2 arranged at the rear part and the front part, and the seed cleaning blocks 5 do not interfere with the rotation of the suction assisting rotating pipes 6, the comb finger rings 7 and the comb finger type seed plates 2;
the suction-assisting rotating pipe 6 comprises a circular through hole part 601, suction vanes 602, a circular closed part 603 and rotating pipe air holes 604, the upper end and the lower end of the suction-assisting rotating pipe 6 are respectively the circular through hole part 601 with a through hole structure and the circular closed part 603 with a closed structure, the circular through hole part 601 is rotatably connected with the upper circular pipe 403 of the middle shell 4 through a bearing II 405, the circular closed part 603 is rotatably connected with the lower circular hole 406 of the middle shell 4 through a bearing III 407, a power pulley 9 is fixedly connected at the end part of the circular closed part 603, 2 to 6 rectangular rotating pipe air holes 604 are uniformly formed in the middle part of the suction-assisting rotating pipe 6, each rotating pipe air hole 604 is provided with the suction vanes 602, the number of the suction vanes 602 is the same as that of the rotating pipe air holes 604, the rotation of the suction vanes 602 is not interfered with the rotation of the comb finger seed discs 2, the upper and the lower comb finger rings 7 are symmetrically arranged at the upper and the lower end parts of the suction-assisting rotating pipe 6, and the two comb finger rings 7 are positioned in the inner circle 402 of the middle shell 4;
the comb finger ring 7 comprises a circular ring seat 701 and finger ring cylindrical teeth 702, the circular ring seat 701 is fixedly connected with the suction-aid rotating pipe 6, the size of the finger ring cylindrical teeth 702 is the same as that of the disc cylindrical teeth 204 of the comb finger type disc 2, 8 to 15 finger ring cylindrical teeth 702 are uniformly arranged along the circumferential direction of the ring surface of the circular ring seat 701, and the finger ring cylindrical teeth 702 and the disc cylindrical teeth 204 of the comb finger type disc 2 are mutually meshed to form cylindrical tooth transmission connection;
the outer rotating pipe 8 is rotatably connected with the upper circular pipe 403 of the middle shell 4 through a bearing I404, a gap of 0.5-1.5 mm is formed between the lower end of the outer rotating pipe 8 and the upper end of the circular through hole part 601 of the suction-assisting rotating pipe 6, and the suction-assisting rotating pipe 6 does not drive the outer rotating pipe 8 to rotate together with the reasonable gap during operation.
The directions of rotation of the two finger-shaped seed discs 2 are opposite.
The direction of rotation of the suction-assisting rotary pipe 6 is the same as the direction of the opening of the entrainment blade 602, so as to ensure that the entrainment blade 602 efficiently pumps the air in the internal cavity of the rotary suction-assisting double-row precision seed-metering device through the suction-assisting rotary pipe 6.
The entrainment blade 602 is an arc blade, the maximum rotation diameter of the entrainment blade 602 is 1.6 to 2.4 times of the inner diameter of the suction-aid rotating pipe 6, and the radian of the entrainment blade 602 is 1.2 to 2.5rad.
The width of the air holes 604 of the rotary pipe is 0.15 to 0.25 times of the inner circumference of the suction assisting rotary pipe 6, the length of the air holes 604 of the rotary pipe is 0.3 to 0.6 times of the total length of the suction assisting rotary pipe 6, and the length of the entrainment blades 602 is the same as that of the air holes 604 of the rotary pipe.
The inner diameter of the circular through hole part 601 of the suction-assisting rotating pipe 6 is not larger than that of the outer rotating pipe 8, so that the air exhaust efficiency is improved.
The front and rear seed combing and sowing plates 2, the front and rear seed plate bearings 3, the middle shell 4 and the suction-assisting rotary pipe 6 jointly enclose an inner cavity of the rotary suction-assisting type double-row precision seed-metering device, an external air exhaust fan is connected with the outer rotary pipe 8 before operation, external power is input through a power belt wheel 9, and seeds enter the rotary suction-assisting type double-row precision seed-metering device from the seed inlet 101 of the outer shell 1. During operation, the power belt wheel 9 drives the suction-assisting rotating pipe 6 and the comb finger ring 7 to rotate at high speed, the rotating direction of the suction-assisting rotating pipe 6 is the same as the opening direction of the entrainment blades 602, the comb finger ring 7 is connected through cylindrical gear transmission and simultaneously drives the front and the rear comb finger seed disks 2 to rotate in different directions, when viewed from front to back, the comb finger seed disk 2 at the front part rotates clockwise, and the comb finger seed disk 2 at the rear part rotates anticlockwise; the entrainment blades 602 rotate at a high speed along with the auxiliary suction rotary pipe 6 to generate an entrainment effect, so that air in the internal cavity is efficiently pumped out through the rotary pipe air holes 604, the circular through hole part 601 and the outer rotary pipe 8, air negative pressure is generated at the circular seed suction hole 202 of the finger-shaped seed plate 2 and seeds are adsorbed, when the adsorbed seeds rotate along with the finger-shaped seed plate 2 to the region of the air blocking circular arc surface 501 of the seed cleaning block 5, air flow is blocked, and the seeds freely fall and are discharged from the seed falling hole 104 of the outer shell body 1, and the whole seed sowing operation process is completed.
The invention has the advantages that the entrainment effect of the suction-assisting rotary pipe 6 can obviously improve the air extraction efficiency, further reduce the rotating speed and the operation energy consumption of an external fan, enhance the air suction seed suction effect, simultaneously carry out high-speed precise seed metering on two seeding rows by the two comb finger type seed disks 2 rotating in different directions, further reduce the electric energy consumption, and have compact integral structure and high operation efficiency.
Drawings
FIG. 1 is a perspective view of a rotary suction-assisted two-row precision seed meter;
FIG. 2 is an exploded view of a rotary suction-assisted two-row precision seed metering device;
FIG. 3A is a perspective view of the inner assembly of the middle housing;
FIG. 3B is a cross-sectional view of the inner assembly of the middle housing;
FIG. 4 is a perspective view of the transmission inside the middle housing;
FIG. 5 is a perspective view of a finger-combing seed plate;
FIG. 6A is a perspective view of the suction-assist rotation tube;
FIG. 6B is a cross-sectional view of the middle of the suction-assist roller tube;
in the figure, 1 is an outer shell, 2 is a comb finger disc, 3 is a disc bearing, 4 is a middle shell, 5 is a seed cleaning block, 6 is an auxiliary suction rotary pipe, 7 is a comb finger ring, 8 is an outer rotary pipe, 9 is a power pulley 9, 101 is an inlet, 102 is a partition plate, 103 is a lower partition plate, 104 is a seed falling port, 201 is a disc surface, 202 is a circular seed suction hole, 203 is a disc circular pipe, 204 is a disc cylindrical tooth, 401 is an outer circular ring, 402 is an inner circular cylinder, 403 is an upper circular pipe, 404 is a bearing I, 405 is a bearing II, 406 is a lower circular hole, 407 is a bearing III, 501 is a gas-blocking circular arc surface, 502 is a fixed circular arc plate, 601 is a circular through hole part, 602 is a entrainment blade, 603 is a circular sealing part, 604 is a rotary pipe air hole, 701 is a circular ring seat, and 702 is a ring cylindrical tooth.
Detailed Description
The specific structure and operation of the invention are described below with reference to the accompanying drawings and examples.
As shown in a perspective view of the rotary suction-assisting type double-row precision seed metering device in fig. 1, an explosion view of the rotary suction-assisting type double-row precision seed metering device in fig. 2, a perspective structure view of the inside assembly of the middle shell in fig. 3A, and a cross-sectional view of the inside assembly of the middle shell in fig. 3B, the rotary suction-assisting type double-row precision seed metering device is characterized by mainly comprising an outer shell 1, a seed combing and finger type seed plate 2, a seed plate bearing 3, a middle shell 4, a seed cleaning block 5, a suction-assisting rotary pipe 6, a seed combing ring 7, an outer rotary pipe 8 and a power belt pulley 9.
The outer shell body 1 mainly comprises a seed inlet 101, an upper partition plate 102, a lower partition plate 103 and a seed outlet 104, wherein the seed inlet 101 and the seed outlet 104 are rectangular through holes, the upper partition plate 102 and the lower partition plate 103 are vertically arranged, a 12mm gap is formed between the upper partition plate 102 and the lower partition plate 103, reasonable gaps can ensure that the upper partition plate 102 and the lower partition plate 103 can not scrape seeds adsorbed on a finger comb seed plate 2 during seed sowing operation, the outer shell body 1 covers the finger comb seed plate 2 and does not interfere with the rotation of the finger comb seed plate 2, the front outer shell body 1 and the rear outer shell body 1 are fixedly connected to the front portion and the rear portion of the middle shell body 4 respectively, the front outer shell body 1 and the rear outer shell body 1 are arranged in a bilateral symmetry mode, and the front finger seed plate 2 and the rear comb seed plate 2 are rotatably connected with the middle shell body 4 through a seed plate bearing 3.
The middle shell 4 comprises an outer ring 401, an inner cylinder 402, an upper circular tube 403, a bearing I404, a bearing II 405, a lower circular hole 406 and a bearing III 407, the outer ring 401 and the inner cylinder 402 are coaxially arranged, the upper circular tube 403 and the lower circular hole 406 are coaxially arranged, the axial lines of the upper circular tube 403 and the lower circular hole 406 are superposed with the axial line of the inner cylinder 402, the bearing I404 and the bearing II 405 are respectively and fixedly connected with the upper end and the lower end inside the upper circular tube 403, the bearing III 407 is fixedly connected with the lower circular hole 406, the upper end and the lower end of the suction-assisting rotating tube 6 are respectively a circular through hole part 601 with a through hole structure and a circular closed part 603 with a closed structure, the circular through hole part 601 is in rotary connection with the upper circular tube 403 of the middle shell 4 through the bearing II 405, the circular closed part 603 is in rotary connection with the lower circular hole 406 of the middle shell 4 through the bearing III 407, and the power pulley 9 is fixedly connected with the end of the circular closed part 603.
The seed cleaning block 5 comprises a gas barrier circular arc surface 501 and a fixed circular arc plate 502, the seed cleaning block 5 is made of plastic POM, the self-lubricating property of the plastic POM can reduce the friction damage between the seed cleaning block 5 and a contact object, the left seed cleaning block 5 and the right seed cleaning block 5 are symmetrically arranged at the inner lower part of the middle shell 4, the fixed circular arc plate 502 is fixedly connected with the inner cylindrical surface of the inner cylinder 402, the gas barrier circular arc surfaces 501 of the left seed cleaning block 5 and the right seed cleaning block 5 are respectively tightly attached to the circular plate surfaces 201 of the finger-shaped seed plates 2 arranged at the rear part and the front part, and the seed cleaning blocks 5 do not interfere with the rotation of the suction rotary pipe 6, the finger-shaped seed plates 7 and the finger-shaped seed plates 2.
The outer rotary pipe 8 is rotatably connected with the upper circular pipe 403 of the middle shell 4 through a bearing I404, a gap of 0.6mm is formed between the lower end of the outer rotary pipe 8 and the upper end of the circular through hole part 601 of the suction-assisting rotary pipe 6, the suction-assisting rotary pipe 6 does not drive the outer rotary pipe 8 to rotate together with a reasonable gap during operation, the inner diameter of the circular through hole part 601 of the suction-assisting rotary pipe 6 is equal to the inner diameter of the outer rotary pipe 8, and the air extraction efficiency can be improved.
As shown in the three-dimensional structure diagram of the internal transmission of the middle housing of fig. 4, the three-dimensional structure diagram of the comb finger type seed disks of fig. 5, the three-dimensional structure diagram of the suction-assisting rotary pipe of fig. 6A, and the middle section diagram of the suction-assisting rotary pipe of fig. 6B, the rotation directions of the two comb finger type seed disks 2 are opposite, the rotation directions of the suction-assisting rotary pipe 6 and the opening direction of the suction-assisting blade 602 are the same, so as to ensure that the suction-assisting blade 602 efficiently pumps air in the internal cavity of the rotary suction-assisting double-row precision seed-metering device through the suction-assisting rotary pipe 6, the rotation of the suction-assisting blade 602 and the rotation of the comb finger type seed disks 2 do not interfere with each other, the upper and lower comb finger rings 7 are symmetrically arranged at the upper and lower ends of the suction-assisting rotary pipe 6, and the two comb finger rings 7 are both positioned inside the inner cylinder 402 of the middle housing 4, the comb finger rings 7 comprise a ring seat 701 and finger ring cylindrical teeth, the ring seat 701 is fixedly connected with the suction-assisting rotary pipe 6, the size of the cylindrical teeth 702 of the seed disks 702 is the same as the size of the cylindrical teeth 204 of the comb finger type seed disks 2, 8 finger rings are uniformly arranged along the ring seat 701, and the cylindrical teeth 702 are uniformly engaged with each other to form the cylindrical teeth of the cylindrical teeth 204 of the comb finger type seed disks, and the cylindrical teeth of the comb finger type seed disks 702, and the cylindrical teeth 204.
The comb-finger-shaped seed plate 2 comprises a circular plate surface 201, circular seed suction holes 202, a seed plate circular tube 203 and seed plate cylindrical teeth 204, wherein the circular plate surface 201 and the seed plate circular tube 203 are coaxially arranged, the 27 circular seed suction holes 202 are uniformly arranged along the circumferential direction of the circular plate surface 201, the circular seed suction holes 202 are positioned on the inner side of the circle of the seed plate circular tube 203, and the 55 seed plate cylindrical teeth 204 are uniformly arranged along the circumferential direction of the annular surface of the seed plate circular tube 203.
The suction-assisting rotating pipe 6 comprises a circular through hole part 601, a suction blade 602, a circular closing part 603 and a rotating pipe air hole 604, wherein the middle part of the suction-assisting rotating pipe 6 is uniformly provided with 3 rectangular rotating pipe air holes 604 and 3 suction blades 602, each rotating pipe air hole 604 is provided with the suction blade 602, the suction blade 602 is an arc blade, the maximum rotation diameter of the suction blade 602 is 1.6 times the inner diameter of the suction-assisting rotating pipe 6, the radian of the suction blade 602 is 1.5rad, the width of the rotating pipe air hole 604 is 0.15 times the inner circumference of the suction-assisting rotating pipe 6, and the lengths of the suction blade 602 and the rotating pipe air hole 604 are 0.45 times the total length of the suction-assisting rotating pipe 6.
The invention is suitable for high-speed precision seeding operation.
While the invention has been described with reference to specific preferred embodiments, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the following claims. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. A rotary suction-assisting type double-row precision seed sowing device is characterized by mainly comprising an outer shell (1), a finger combing seed plate (2), a seed plate bearing (3), a middle shell (4), a seed cleaning block (5), a suction-assisting rotary pipe (6), a finger combing ring (7), an outer rotary pipe (8) and a power belt pulley (9);
the comb finger seed tray comprises an outer shell (1), a front outer shell and a rear outer shell, wherein the outer shell (1) mainly comprises a seed inlet (101), an upper partition plate (102), a lower partition plate (103) and a seed outlet (104), the seed inlet (101) and the seed outlet (104) are rectangular through holes, the upper partition plate (102) and the lower partition plate (103) are both vertically arranged, a gap of 10 to 28mm is formed between the upper partition plate (102) and the lower partition plate (103), the outer shell (1) covers the comb finger seed tray (2) and does not interfere with the rotation of the comb finger seed tray (2), the front outer shell and the rear outer shell (1) are respectively and fixedly connected to the front part and the rear part of a middle shell (4), and the front outer shell and the rear outer shell (1) are arranged in bilateral symmetry;
the comb finger type seed tray (2) comprises a circular tray surface (201), circular seed sucking holes (202), a tray circular tube (203) and tray cylindrical teeth (204), the circular tray surface (201) and the tray circular tube (203) are coaxially arranged, 24 to 30 circular seed sucking holes (202) are uniformly arranged along the circumferential direction of the circular tray surface (201), the circular seed sucking holes (202) are positioned on the inner side of the circular tray circular tube (203), 50 to 66 tray cylindrical teeth (204) are uniformly arranged along the circumferential direction of the annular surface of the tray circular tube (203), and the front comb finger type seed tray (2) and the rear comb finger type seed tray (2) are rotationally connected with a middle shell (4) through tray bearings (3);
the middle shell (4) comprises an outer ring (401), an inner cylinder (402), an upper circular tube (403), a bearing I (404), a bearing II (405), a lower circular hole (406) and a bearing III (407), wherein the outer ring (401) and the inner cylinder (402) are coaxially arranged, the upper circular tube (403) and the lower circular hole (406) are coaxially arranged, the axial leads of the upper circular tube (403) and the lower circular hole (406) are superposed with the axial lead of the inner cylinder (402), the bearing I (404) and the bearing II (405) are fixedly connected to the upper end and the lower end inside the upper circular tube (403) respectively, and the bearing III (407) is fixedly connected to the lower circular hole (406);
the seed cleaning blocks (5) comprise air-blocking circular arc surfaces (501) and fixed circular arc plates (502), the seed cleaning blocks (5) are made of plastics, the plastics are POM, PA or PTFE, the left seed cleaning blocks and the right seed cleaning blocks (5) are symmetrically arranged at the inner lower part of the middle shell (4), the fixed circular arc plates (502) are fixedly connected with the inner cylindrical surface of the inner cylinder (402), the air-blocking circular arc surfaces (501) of the left seed cleaning blocks and the right seed cleaning blocks (5) are respectively tightly attached to circular plate surfaces (201) of the finger combing seed plates (2) arranged at the rear part and the front part, and the seed cleaning blocks (5) do not interfere with the rotation of the suction assisting rotating pipe (6), the finger combing rings (7) and the finger combing seed plates (2);
the suction-assisting rotating pipe (6) comprises a circular through hole part (601), a suction-assisting blade (602), a circular closed part (603) and a rotating pipe air hole (604), the upper end and the lower end of the suction-assisting rotating pipe (6) are respectively provided with the circular through hole part (601) with a through hole structure and the circular closed part (603) with a closed structure, the circular through hole part (601) is rotatably connected with an upper circular pipe (403) of a middle shell (4) through a bearing II (405), the circular closed part (603) is rotatably connected with a lower circular hole (406) of the middle shell (4) through a bearing III (407), a power pulley (9) is fixedly connected to the end part of the circular closed part (603), the middle part of the suction-assisting rotating pipe (6) is uniformly provided with 2 to 6 rectangular rotating pipe air holes (602), each rotating pipe air hole (604) is provided with the suction-assisting blade (602), the number of the suction-assisting blades (602) is the same as that of the rotating pipe (604), the rotation of the suction-assisting blade (602) interferes with the rotation of a comb finger (2), the two inner rings (7) of the middle shell are symmetrically arranged at the upper end part and the two inner rings (4) and the two inner rings (7) of the middle shell are symmetrically arranged at the inner circle of the middle shell;
the comb finger ring (7) comprises a circular ring seat (701) and finger ring cylindrical teeth (702), the circular ring seat (701) is fixedly connected with the suction-aid rotating pipe (6), the size of the finger ring cylindrical teeth (702) is the same as that of the disc cylindrical teeth (204) of the comb finger type disc (2), 8-15 finger ring cylindrical teeth (702) are uniformly arranged along the circumferential direction of the circular ring surface of the circular ring seat (701), and the finger ring cylindrical teeth (702) are mutually meshed with the disc cylindrical teeth (204) of the comb finger type disc (2) to form cylindrical tooth transmission connection;
the outer rotating pipe (8) is rotatably connected with an upper circular pipe (403) of the middle shell (4) through a bearing I (404), and a gap of 0.5-1.5 mm is reserved between the lower end of the outer rotating pipe (8) and the upper end of a circular through hole part (601) of the suction-aid rotating pipe (6).
2. The rotary suction-assisted double-row precision seed-metering device according to claim 1, characterized in that the rotation directions of the two finger-combing seed plates (2) are opposite.
3. The rotary suction-assisting double-row precision seed-metering device according to claim 1, characterized in that the direction of rotation of the suction-assisting rotary pipe (6) is the same as the opening direction of the entrainment blades (602).
4. The rotary suction-assisting double-row precision seed sowing device according to claim 1, wherein the entrainment blade (602) is a circular arc blade, the maximum rotation diameter of the entrainment blade (602) is 1.6 to 2.4 times of the inner diameter of the suction-assisting rotary pipe (6), and the radian of the entrainment blade (602) is 1.2 to 2.5rad.
5. The rotary suction-assisting double-row precision seed-metering device according to claim 1, characterized in that the width of the air holes (604) of the rotary pipe is 0.15 to 0.25 times of the inner circumference of the suction-assisting rotary pipe (6), the length of the air holes (604) of the rotary pipe is 0.3 to 0.6 times of the total length of the suction-assisting rotary pipe (6), and the length of the entrainment blades (602) is the same as that of the air holes (604) of the rotary pipe.
6. The rotary suction-assisted double-row precision seed sowing device according to claim 1, wherein the inner diameter of the circular through hole part (601) of the suction-assisted rotary pipe (6) is not larger than the inner diameter of the outer rotary pipe (8).
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| CN202211068745.2A CN115152372B (en) | 2022-09-02 | 2022-09-02 | Rotary suction-assisting type double-row precision seed sowing device |
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| CN202211068745.2A CN115152372B (en) | 2022-09-02 | 2022-09-02 | Rotary suction-assisting type double-row precision seed sowing device |
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| CN115152372A true CN115152372A (en) | 2022-10-11 |
| CN115152372B CN115152372B (en) | 2022-11-08 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102027825A (en) * | 2010-09-26 | 2011-04-27 | 中国农业大学 | Mechanical/pneumatic combined internal-charging type precision corn seed sowing device |
| CN102668777A (en) * | 2011-03-17 | 2012-09-19 | 华中农业大学 | Horizontal disc set discharging type rape precise seed-metering device |
| CN105493715A (en) * | 2016-01-08 | 2016-04-20 | 青岛农业大学 | Seed discharging device and seeding device |
| CN107155458A (en) * | 2017-06-14 | 2017-09-15 | 河北农业大学 | Air-suction type precision seeder |
| CN107318314A (en) * | 2017-08-24 | 2017-11-07 | 青岛理工大学 | Essence amount seed manure is same to grant the integrated intelligent agricultural machinery equipment of shallow embedding drip irrigation pipe laying |
| US20200008343A1 (en) * | 2018-07-03 | 2020-01-09 | Benjamin DALLA ROSA | Radial suction-type seed metering apparatus |
| CN213523045U (en) * | 2020-10-28 | 2021-06-25 | 河北宗亚农业机械有限公司 | Double leak-proof suction seed disc and air-suction type double-seedling-belt seed sowing device applying same |
| CN214507917U (en) * | 2021-03-08 | 2021-10-29 | 中国农业大学 | Double-disc air-suction type high-speed precision corn seed sowing device |
-
2022
- 2022-09-02 CN CN202211068745.2A patent/CN115152372B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102027825A (en) * | 2010-09-26 | 2011-04-27 | 中国农业大学 | Mechanical/pneumatic combined internal-charging type precision corn seed sowing device |
| CN102668777A (en) * | 2011-03-17 | 2012-09-19 | 华中农业大学 | Horizontal disc set discharging type rape precise seed-metering device |
| CN105493715A (en) * | 2016-01-08 | 2016-04-20 | 青岛农业大学 | Seed discharging device and seeding device |
| CN107155458A (en) * | 2017-06-14 | 2017-09-15 | 河北农业大学 | Air-suction type precision seeder |
| CN107318314A (en) * | 2017-08-24 | 2017-11-07 | 青岛理工大学 | Essence amount seed manure is same to grant the integrated intelligent agricultural machinery equipment of shallow embedding drip irrigation pipe laying |
| US20200008343A1 (en) * | 2018-07-03 | 2020-01-09 | Benjamin DALLA ROSA | Radial suction-type seed metering apparatus |
| CN213523045U (en) * | 2020-10-28 | 2021-06-25 | 河北宗亚农业机械有限公司 | Double leak-proof suction seed disc and air-suction type double-seedling-belt seed sowing device applying same |
| CN214507917U (en) * | 2021-03-08 | 2021-10-29 | 中国农业大学 | Double-disc air-suction type high-speed precision corn seed sowing device |
Non-Patent Citations (2)
| Title |
|---|
| 张全贵: "气力式高速精量排种器的设计", 《当代农机》 * |
| 李玉环 等: "气吸式玉米高速精量排种器投种性能分析与结构优化", 《农业装备工程与机械化》 * |
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| CN115152372B (en) | 2022-11-08 |
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