CN115152372B - Rotary suction-assisting type double-row precision seed sowing device - Google Patents
Rotary suction-assisting type double-row precision seed sowing device Download PDFInfo
- Publication number
- CN115152372B CN115152372B CN202211068745.2A CN202211068745A CN115152372B CN 115152372 B CN115152372 B CN 115152372B CN 202211068745 A CN202211068745 A CN 202211068745A CN 115152372 B CN115152372 B CN 115152372B
- Authority
- CN
- China
- Prior art keywords
- seed
- circular
- suction
- assisting
- rotary
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
Landscapes
- 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 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 pumping efficiency through the entrainment effect of the suction-assisting rotary pipe, further reduce the rotating speed and the operation energy consumption of an external fan, enhance the air suction seed-sucking effect, simultaneously carry out high-speed precise seed discharging on two seeding rows by the two comb finger type seed disks rotating in different directions, further reduce the electric energy consumption by 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 sowing device; meanwhile, the air-suction seed metering device installed on the seeding unit of the seeder can only carry out high-speed precise seed metering on one seeding row, the whole size of the seeder is increased, the electric energy consumption of a tractor is further increased, and the continuous seeding 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 to 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 combing seed plate 2 cannot be scraped off by the upper partition plate 102 and the lower partition plate 103 during seed metering operation, the outer shell 1 covers the finger combing seed plate 2 and does not interfere with the rotation of the finger combing 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 bilateral symmetry;
the comb finger type 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, 24 to 30 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 circular circle of the seed plate circular tube 203, 50 to 66 seed plate cylindrical teeth 204 are uniformly arranged along the circumferential direction of the annular surface of the seed plate circular tube 203, and the front comb finger type seed plate 2 and the rear comb finger type seed plate 2 are rotationally connected with a middle shell 4 through seed plate bearings 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, 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 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 fixedly connected with the upper end and the lower end inside the upper circular tube 403 respectively, and the bearing III 407 is fixedly connected with the lower circular hole 406;
the seed cleaning blocks 5 comprise gas barrier 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 gas barrier 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 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 pipe 6, the finger ring 7 and the 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 assisting 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 the 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 out 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 time 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 time of the total length of the suction-assisting rotary pipe 6, and the length of the suction-sucking 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 finger plates 2, the front and rear seed plate bearings 3, the middle shell 4 and the suction-assisting rotating pipe 6 jointly enclose an inner cavity of the rotary suction-assisting double-row precision seed-metering device, an external air suction fan is connected with the outer rotating pipe 8 before operation, external power is input through a power belt wheel 9, and seeds enter the rotary suction-assisting double-row precision seed-metering device from a 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 high speed along with the auxiliary suction rotary pipe 6 to generate an entrainment effect, so that air in the inner 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 comb finger type seed plate 2 and seeds are adsorbed, when the adsorbed seeds rotate to the air blocking circular arc surface 501 area of the seed cleaning block 5 along with the comb finger type seed plate 2, air flow is blocked, and the seeds fall freely and are discharged from the seed dropping opening 104 of the outer shell 1, and the whole seed discharging 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 shell;
FIG. 3B is a cross-sectional view of the internal 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 comb type seed tray;
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 drawing, 1 represents an outer shell, 2 represents a comb-finger-shaped seed disc, 3 represents a seed disc bearing, 4 represents a middle shell, 5 represents a seed cleaning block, 6 represents an auxiliary suction rotary pipe, 7 represents a comb-finger ring, 8 represents an outer rotary pipe, 9 represents a power pulley 9, 101 represents a seed inlet, 102 represents a partition plate, 103 represents a lower partition plate, 104 represents a seed outlet, 201 represents a circular plate surface, 202 represents a circular seed suction hole, 203 represents a seed circular pipe, 204 represents a seed circular column tooth, 401 represents an outer circular ring, 402 represents an inner circular cylinder, 403 represents an upper circular pipe, 404 represents a bearing I, 405 represents a bearing II, 406 represents a lower circular hole, 407 represents a bearing III, 501 represents a gas blocking circular arc surface, 502 represents a fixed circular arc plate, 601 represents a circular through hole part, 602 represents a entrainment blade, 603 represents a circular sealing part, 604 represents a rotary pipe air hole, 701 represents a circular ring seat, and 702 represents a ring circular column 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 a rotary suction-assisted double-row precision seed-metering device in fig. 1, an explosion view of the rotary suction-assisted double-row precision seed-metering device in fig. 2, a perspective structure view of an internal assembly of a middle shell in fig. 3A, and a cross-sectional view of the internal assembly of the middle shell in fig. 3B, the rotary suction-assisted double-row precision seed-metering device is characterized by mainly comprising an outer shell 1, a seed combing and finger type seed disc 2, a seed disc bearing 3, a middle shell 4, a seed cleaning block 5, a suction-assisted rotary pipe 6, a seed combing ring 7, an outer rotary pipe 8 and a power belt wheel 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 the finger comb seed plates 2 during seed sowing operation, the outer shell body 1 covers the finger comb seed plates 2 and does not interfere with the rotation of the finger comb seed plates 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 finger seed plate 2 are connected with the middle shell body 4 in a rotating mode through seed bearings 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.
Seed cleaning block 5 contains choke arc surface 501 and fixed arc plate 502, seed cleaning block 5 is plastics material POM, the self-lubricating property of plastics material can reduce the friction damage between seed cleaning block 5 and the contact object, two seed cleaning block 5 symmetries of left and right sides set up the interior lower part of well casing 4, fixed arc plate 502 and the inner cylinder rigid coupling of inner cylinder 402, the choke arc surface 501 of two seed cleaning block 5 of left and right sides closely laminates with the circular plate face 201 that sets up at rear portion, anterior comb finger kind dish 2 respectively, seed cleaning block 5 all noninterference helps inhaling changes pipe 6, comb finger circle 7 and the rotation of comb finger dish 2.
The outer rotary pipe 8 is in rotary connection 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 reasonable gap ensures that the suction-assisting rotary pipe 6 does not drive the outer rotary pipe 8 to rotate together 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 suction efficiency can be improved.
As shown in the three-dimensional structure diagram of the internal transmission of the middle shell of fig. 4, the three-dimensional structure diagram of the comb-finger type seed tray of fig. 5, the three-dimensional structure diagram of the suction-aid rotary pipe of fig. 6A and the middle section diagram of the suction-aid rotary pipe of fig. 6B, the rotation directions of the two comb-finger type seed trays 2 are opposite, the rotation direction of the suction-aid rotary pipe 6 is the same as the opening direction 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-aid double-row precision seed-metering device through the suction-aid rotary pipe 6, the rotation of the entrainment blade 602 is not interfered with the rotation of the comb-finger type seed trays 2, an upper comb finger ring 7 and a lower comb finger ring 7 are symmetrically arranged at the upper end part and the lower end part of the suction-aid rotating pipe 6, the two comb finger rings 7 are positioned inside an inner cylinder 402 of the middle shell 4, each comb finger ring 7 comprises a circular ring seat 701 and a finger ring cylindrical tooth 702, the circular ring seats 701 are 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 finger ring cylindrical teeth 702 are uniformly arranged along the circumferential direction of the ring surface of the circular ring seats 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 comb-finger type seed disc 2 comprises a disc surface 201, circular seed sucking holes 202, a disc circular tube 203 and disc cylindrical teeth 204, wherein the disc surface 201 and the disc circular tube 203 are coaxially arranged, the 27 circular seed sucking holes 202 are uniformly arranged along the circumferential direction of the disc surface 201, the circular seed sucking holes 202 are positioned on the inner side of the circle of the disc circular tube 203, and the 55 disc cylindrical teeth 204 are uniformly arranged along the circumferential direction of the ring surface of the disc circular tube 203.
The auxiliary suction rotary pipe 6 comprises a circular through hole part 601, a entrainment blade 602, a circular closed part 603 and a rotary pipe air hole 604, wherein the middle part of the auxiliary suction rotary pipe 6 is uniformly provided with 3 rectangular rotary pipe air holes 604 and 3 entrainment blades 602, each rotary pipe air hole 604 is provided with the entrainment blade 602, the entrainment blade 602 is a circular arc blade, the maximum rotation diameter of the entrainment blade 602 is 1.6 times of the inner diameter of the auxiliary suction rotary pipe 6, the radian of the entrainment blade 602 is 1.5rad, the width of the rotary pipe air hole 604 is 0.15 times of the inner circumference of the auxiliary suction rotary pipe 6, and the lengths of the entrainment blade 602 and the rotary pipe air hole 604 are 0.45 times of the total length of the auxiliary suction rotary pipe 6.
The invention is suitable for high-speed precise seed sowing operation.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention should 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 is characterized in that 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 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 (1) and the rear outer shell (1) are fixedly connected to the front part and the rear part of the middle shell (4) respectively, and the front outer shell (1) and the rear outer shell (1) are arranged in a left-right symmetrical mode;
the comb finger type 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, 24-30 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 circular seed plate circular tube (203), 50-66 seed plate cylindrical teeth (204) are uniformly arranged along the circumferential direction of the annular surface of the seed plate circular tube (203), and the front comb finger type seed plate (2) and the rear comb finger type seed plate (2) are rotationally connected with a middle shell (4) through seed plate 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 arc surfaces (501) and fixed 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 arc plates (502) are fixedly connected with the inner cylindrical surface of the inner cylinder (402), the air-blocking arc surfaces (501) of the left seed cleaning blocks and the right seed cleaning blocks (5) are tightly attached to the circular plate surfaces (201) of the finger combing seed plates (2) arranged at the rear part and the front part respectively, 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 rotary pipe (6) comprises a circular through hole part (601), suction-assisting blades (602), a circular closed part (603) and rotary pipe air holes (604), the upper end and the lower end of the suction-assisting rotary 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 rotationally connected with an upper circular pipe (403) of the middle shell (4) through a bearing II (405), the circular closed part (603) is rotationally 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), 2-6 rectangular rotary pipe air holes (604) are uniformly formed in the middle part of the suction-assisting rotary pipe (6), the suction blades (602) are arranged at each rotary pipe air hole (604), the number of the suction-assisting blades (602) is the same as that of the rotary pipe (604), the rotation of the suction-assisting rotary blades (602) is interfered with the rotation of the rotary pipe fingers (2), the upper rotary pipe and the lower rotary pipe air holes (7) are arranged at the two ends of the middle shell (4) and are symmetrical to the two finger rings (402);
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-assisting double-row precision seed-metering device according to claim 1, characterized in that the directions of rotation 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-assisting double-row precision seed-metering device according to claim 1, characterized in that the inner diameter of the circular through hole part (601) of the suction-assisting rotary pipe (6) is not larger than the inner diameter of the outer rotary pipe (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211068745.2A CN115152372B (en) | 2022-09-02 | 2022-09-02 | Rotary suction-assisting type double-row precision seed sowing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211068745.2A CN115152372B (en) | 2022-09-02 | 2022-09-02 | Rotary suction-assisting type double-row precision seed sowing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115152372A CN115152372A (en) | 2022-10-11 |
| CN115152372B true CN115152372B (en) | 2022-11-08 |
Family
ID=83481268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211068745.2A Active CN115152372B (en) | 2022-09-02 | 2022-09-02 | Rotary suction-assisting type double-row precision seed sowing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115152372B (en) |
Citations (7)
| 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 | Smart agricultural machinery equipment of smart volume seed manure is executed with shallow intelligent pipe laying of driping irrigation of burying simultaneously |
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BR102018013667A2 (en) * | 2018-07-03 | 2020-01-07 | Benjamin Dalla Rosa | PNEUMATIC RADIAL SUCTION SEED DOSER |
-
2022
- 2022-09-02 CN CN202211068745.2A patent/CN115152372B/en active Active
Patent Citations (7)
| 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 | Smart agricultural machinery equipment of smart volume seed manure is executed with shallow intelligent pipe laying of driping irrigation of burying simultaneously |
| 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 |
|---|
| 气力式高速精量排种器的设计;张全贵;《当代农机》;20220630;82-83 * |
| 气吸式玉米高速精量排种器投种性能分析与结构优化;李玉环 等;《农业装备工程与机械化》;20220430;1-11 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115152372A (en) | 2022-10-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9629301B2 (en) | Direct drive seed metering device | |
| CN109845454B (en) | Wind pressure self-supporting seed metering device | |
| EP3108731B1 (en) | Direct drive seed metering device | |
| CN106954410B (en) | Air suction type high-density precise hill planter | |
| CN115152372B (en) | Rotary suction-assisting type double-row precision seed sowing device | |
| CN107852912B (en) | Small-particle-diameter precise seed metering device with combination of air suction and scooping | |
| CN112715105A (en) | Single-air-chamber double-chamber pneumatic seed sowing device | |
| CN108243680A (en) | Aspiration inhales kind and scoops kind of a combine precision seed-metering with machinery | |
| CN214507917U (en) | Double-disc air-suction type high-speed precision corn seed sowing device | |
| CN105165189B (en) | Aspirated-air type electric feed disk | |
| CN112930789B (en) | Air-suction type precision seed sowing device for single-disc double-side seed sowing | |
| CN110012707B (en) | Self-suction type seed taking and discharging precision seed metering device | |
| CN206165160U (en) | Novel seed metering ware | |
| CN209897594U (en) | Wind pressure self-supporting seed metering ware | |
| CN114846965A (en) | Self-suction type air-suction seed sowing device | |
| CN110199633B (en) | Internal-charging air-suction type high-speed precision seed sowing device | |
| CN115812393A (en) | Horizontal air-suction type seed sowing device and seed sowing method thereof | |
| CN111919549B (en) | Pneumatic type slideway seed sowing device | |
| CN217241387U (en) | Air-suction type seed sowing device and seeder | |
| CN215819358U (en) | Air suction bucket wheel type seed sowing device | |
| CN213331635U (en) | Negative pressure centrifugal fan device applied to seeder | |
| CN211019957U (en) | Differential transmission device of dibbler | |
| CN218998830U (en) | Flat seed air suction type seed metering device | |
| CN114885646B (en) | Air suction type close seeding device | |
| CN118844165A (en) | Flow-guiding and collecting type corn precise seed metering device based on air flow disturbance seed filling |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |