CN210381863U - Corn gourd ladle-shaped hole wheel type centralized seed metering device - Google Patents
Corn gourd ladle-shaped hole wheel type centralized seed metering device Download PDFInfo
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- CN210381863U CN210381863U CN201920922280.XU CN201920922280U CN210381863U CN 210381863 U CN210381863 U CN 210381863U CN 201920922280 U CN201920922280 U CN 201920922280U CN 210381863 U CN210381863 U CN 210381863U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
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Abstract
The utility model discloses a corn gourd ladle shape hole wheel type centralized seed discharging device. Comprises a seed box, an outer shell and a seed sowing body. The shell body comprises front end plate, left side board, right side board, bottom arc board, rear end seed protection board, seed discharging board, seed guiding pipe, left bearing end cover, right bearing end cover. The seed discharging body consisting of the seed discharging wheel, the transmission shaft, the seed layer height adjusting plate, the seed stirring device and the seed cleaning brush is arranged in the outer shell, and the shaped hole on the seed discharging wheel is a gourd ladle shaped hole, so that the seed filling and the seed throwing are easy, and the precise hole direct seeding of the corn is realized. The gourd dipper-shaped hole wheel type corn hole direct seeding centralized seed discharging device simplifies the structure of a seed discharging device, is convenient to adjust, install and disassemble due to modular design, realizes hole-forming precise seed discharging of seeds, and provides the seed discharging device for hole direct seeding of corn.
Description
Technical Field
The invention relates to the technical field of crop seeding equipment, in particular to a corn gourd ladle-shaped hole wheel type centralized seed metering device.
Background
Corn is one of the main products of China, and after a series of preferential policies of China are implemented, the planting scale of the corn in China reaches 2500 ten thousand hm2Its yield is 25% of the total yield of grains in China. The requirements for corn are increased no matter live pig breeding, fuel ethanol deep processing, wine brewing and the like, and in 2017-2018, the gap of the domestic corn is about 2300 ten thousand tons. With the improvement of the level of agricultural mechanization, the corn production process is gradually mechanized. The mechanized sowing with high efficiency and high quality is particularly important in the corn production process, and the mechanized sowing of the corn can greatly reduce the production cost of the corn and becomes a prerequisite for the whole mechanized production process of the corn.
China mainly focuses on northeast, northwest and southwest areas, wherein the northeast and the northwest areas are mostly plains, the corn mechanical planting method is suitable for corn mechanical planting, and the mechanical seeding level is high. The southwest corn planting area is mostly hilly and mountainous, the machine is difficult to land, manual transplanting and dibbling modes are mostly adopted, the mechanization level is low, and the southwest corn planting area becomes a key link for restricting the whole-course mechanization of the corn. The improvement of the mechanized sowing level of the corn is an important way for improving the mechanized sowing level of the corn in the southwest hilly areas, and is a problem to be solved urgently. To realize the mechanized planting of the corns in the hilly areas, the local terrain and soil conditions are adapted, and meanwhile, the machines are required to be light and simple. Most of the existing corn seed sowing devices adopt a single-body seed sowing device, only single-row seed sowing can be realized, the problems of high overall cost, complex transmission system, high power consumption, complex work, complex seed loading and unloading and the like mainly exist, the single-body seed sowing device is used in northern plains, but the single-body seed sowing device has the characteristics of being not suitable for the sowing operation of special terrains in hilly and mountainous areas.
Disclosure of Invention
Aiming at the defects of the technology, the invention provides the gourd-shaped corn hole wheel type centralized seed sowing device which is simple in structure and can adapt to multi-terrain operation, and the gourd-shaped corn hole wheel type centralized seed sowing device is a core component of a seeder.
In order to achieve the purpose, the corn gourd ladle-shaped hole wheel type centralized seed discharging device is characterized by comprising a seed box, a front end plate, a seed discharging plate, a right side plate, a seed guiding pipe, a seed stirring chain wheel, a seed discharging chain wheel, a bearing end cover, a bearing seat, a seed layer height adjusting plate, a seed stirring device, a seed filling chamber, a left side plate, a bottom arc plate, a seed throwing port, a gourd ladle-shaped seed discharging wheel, a transmission shaft, a silica gel sheet, a rear end seed protecting plate and seed cleaning brushes; the right side plate is provided with a bearing seat, and the bearing seat is provided with a bearing end cover; a seed layer height adjusting plate is arranged between the right side plate and the left side plate, a seed filling chamber is formed by the right side plate, the bottom arc plate, the front end part of the gourd ladle-shaped seed sowing wheel, the left side plate and the seed layer height adjusting plate, and a seed box is arranged above the seed filling chamber; a transmission shaft is arranged between the right side plate and the left side plate, 4 gourd ladle-shaped seed sowing wheels with equal size are arranged on the transmission shaft, and the right end of the transmission shaft is connected with a seed sowing chain wheel through a key; a seed stirring device is arranged between the left side plate and the right side plate, the right side of the seed stirring device is connected with a seed stirring chain wheel, and a seed cleaning brush is arranged above the gourd ladle-shaped seed sowing wheel; seed discharging plates are arranged on the right side plate and the left side plate, a seed throwing port is formed by a gap between the bottom arc plate and the rear end seed protecting plate, and a seed guide pipe is arranged below the seed throwing port; the seed guide pipe is provided with 4 guide pipes which respectively correspond to the 4 gourd ladle-shaped seed sowing wheels; the arc part of the rear end seed protecting plate is tightly attached with a silica gel sheet.
Further, the gourd ladle-shaped seed sowing wheel comprises a gourd ladle-shaped seed sowing wheel wall, a support rib and a seed sowing shaft fixing seat, and 8 gourd ladle-shaped holes are uniformly distributed on the gourd ladle-shaped seed sowing wheel; the center of the gourd ladle-shaped seed sowing wheel is provided with a seed sowing shaft fixing seat, and the support rib is connected with the gourd ladle-shaped seed sowing wheel wall and the seed sowing shaft fixing seat.
Furthermore, the seed layer height adjusting plate is arranged at an angle of 114 degrees with the horizontal plane, can slide up and down on the left side plate and the right side plate, and adjusts the seed filling height of the gourd ladle-shaped seed sowing wheel in the seed filling chamber.
Furthermore, 4 gourd ladle-shaped seed sowing wheels are mounted on the transmission shaft in total, so that 4 rows of seed sowing operations can be synchronously completed. The middle of each gourd ladle-shaped seed sowing wheel is hollowed to reduce the structural weight and save materials, the diameter of each gourd ladle-shaped seed sowing wheel is 100mm, the width of each gourd ladle-shaped seed sowing wheel is 29mm, and 8 type holes are uniformly distributed on the circumference of each gourd ladle-shaped seed sowing wheel.
Furthermore, the width of the seed feeding port is 27mm, 4 seed guiding pipes are arranged below the seed feeding port, each seed discharging pipe corresponds to one gourd ladle-shaped seed discharging wheel, and the derivation of 4 rows of seeds is completed.
Furthermore, the shaped hole on the gourd ladle shaped seed sowing wheel is in a shape with a small front end, a large rear end, a shallow front end and a deep rear end. The front edge of the frame is inclined by 140 degrees, the rear edge of the frame is inclined by 70 degrees, and the whole outer edge is provided with a chamfer of 1.5 mm.
Furthermore, seed stirring teeth on the seed stirring device are arranged in a double-helix manner, and the included angle between every two adjacent groups of seed stirring teeth is 45 DEG
Further, the installation height, the horizontal position and the inclination angle of the brush can be adjusted.
Furthermore, a silica gel sheet made of a softer material is pasted on the arc of the rear-end seed protection plate to prevent seeds from being crushed in the seed protection process, and a gap of 0.5mm is reserved between the silica gel sheet and the arc surface of the gourd ladle-shaped seed sowing wheel.
The invention has the following beneficial effects:
1. the scoop-shaped hole wheel type centralized seed sowing device for the corns adopts a centralized seed sowing mode, and realizes the high-efficiency corn seed sowing operation of one machine with 4 rows. Simplified structure, small size, low cost, low power consumption, simple power transmission, reliable operation and high seeding precision.
2. The parts of the corn gourd ladle-shaped hole wheel type centralized seed sowing device are connected by bolts, so that the corn gourd ladle-shaped hole wheel type centralized seed sowing device is easy to install and disassemble and convenient to adjust and replace.
3. The gourd ladle-shaped seed sowing wheel of the corn gourd ladle-shaped hole wheel type centralized seed sowing device is in modular design, can realize synchronous seed sowing operation of 4 rows of corns, and has strong adaptability, flexible use, high operation efficiency and good seed sowing quality.
4. The scoop-shaped hole wheel type centralized seed sowing device for the corn is provided with the rear end seed protecting plate, the seed protecting function can be achieved, and the seed feeding time of seeds in each row of holes is changed from random to regularity. After the seed throwing interval time is consistent, the seeding hole distance is uniform and consistent.
5. The gourd-shaped hole wheel type centralized seed discharging device for the corn is provided with the seed cleaning brushes, so that seeds which exceed a generatrix of the gourd-shaped seed discharging wheel in the holes can be scraped, 1-2 seeds are reserved in the seed filling holes, the reseeding rate can be effectively reduced, and the seeds are saved.
6. The scoop-shaped hole wheel type centralized seed discharging device for the corn is provided with the seed stirring device, so that the fluidity of the corn seeds can be increased, the seed group continuously surges towards the scoop-shaped seed discharging wheel, the seed filling is facilitated, and the miss-seeding rate can be effectively reduced.
7. The invention is a seed sowing device with strong universality, high seed sowing efficiency, good quality, simple structure and low cost, can adapt to various terrains, and is suitable for precision corn sowing in hilly areas.
Drawings
Fig. 1 is an overall structural view of the present invention.
FIG. 2 is a cross-sectional view of the present invention
FIG. 3 is a structural view of the gourd ladle-shaped seed sowing wheel of the present invention.
FIG. 4 is a structural view of a hole of the gourd ladle shaped seed sowing wheel of the present invention.
FIG. 5 is the overall structure of the seed stirring device of the present invention.
Detailed Description
The invention is further described with reference to the following figures and examples.
The corn gourd ladle-shaped hole wheel type centralized seed sowing device comprises a seed box 1, a front end plate 2, a seed discharging plate 3, a right side plate 4, a seed guiding pipe 5, a seed stirring chain wheel 6, a seed sowing chain wheel 7, a bearing end cover 8, a bearing seat 9, a seed layer height adjusting plate 10, a seed stirring device 11, a seed filling chamber 12, a left side plate 13, a bottom arc plate 14, a seed feeding opening 15, a gourd ladle-shaped seed sowing wheel 16, a transmission shaft 17, a silica gel sheet 18, a rear-end seed protecting plate 19 and a seed cleaning brush 20.
The right side plate 4, the bottom arc plate 14, the front end plate 1, the rear end seed protection plate 19 and the left side plate 13 form a frame structure to form a framework of the seed sowing device; a bearing seat 9 is installed on the right side plate 4, and a bearing end cover 8 is installed on the bearing seat 9; be equipped with seed layer height adjusting plate 10 between right side board 4 and the left side board 13, seed layer height adjusting plate 10 can slide from top to bottom between right side board 4 and left side board 13, right side board 4, bottom circular arc board 14, front end board 1, rear end seed protection board 19, left side board 13 and seed layer height adjusting plate 10 form and fill room 12, and seed layer height adjusting plate 10 adjusts the height of filling the indoor seed group of 12. A seed box 1 is arranged above the seed filling chamber 12.
A transmission shaft 17 is arranged between the right side plate 4 and the left side plate 13, the transmission shaft 17 is supported and positioned through a bearing seat 9, and 4 gourd ladle-shaped seed sowing wheels 16 with equal size are arranged on the transmission shaft 17; the right end of the transmission shaft 17 is connected with a seed sowing chain wheel 7 through a key.
A seed stirring device 11 is arranged between the left side plate 13 and the right side plate 4, and the seed stirring device 11 is positioned in the seed filling chamber 12; the right side of the seed stirring device 11 is connected with a seed stirring chain wheel 6; the seed layer height adjusting plate 10 is obliquely installed above the seed stirring device 11. A seed cleaning brush 20 is arranged above the gourd ladle-shaped seed sowing wheel 16; the seed cleaning brush 20 is horizontally connected with the grooves formed on the left side plate 13 and the right side plate 4 through bolts, and the horizontal position and the inclination angle can be adjusted.
The right side plate 4 and the left side plate 13 are provided with seed discharging plates 3; a seed throwing port 15 is formed by a gap between the bottom arc plate 14 and the rear end seed protecting plate 19, and a seed guide pipe 5 is arranged below the seed throwing port 15; the seed guide pipe 5 is provided with 4 guide pipes which respectively correspond to the 4 gourd ladle-shaped seed sowing wheels 16;
the arc part of the rear end seed protecting plate 19 is tightly attached with a silica gel sheet 18; the arc part of the rear end seed protecting plate 19 is concentric with the gourd ladle-shaped seed sowing wheel, so that the arc distance between the rear end seed protecting plate and the gourd ladle-shaped seed sowing wheel is equal everywhere.
The diameter of the gourd ladle-shaped seed sowing wheel 16 is 100mm, and a hexagonal hole is formed in the middle; 8 gourd dipper shaped holes 161 are uniformly distributed on the gourd dipper shaped seed sowing wheel 16. The gourd dipper-shaped seed sowing wheel 16 comprises a gourd dipper-shaped seed sowing wheel wall 162, a support rib 163 and a seed sowing shaft fixing seat 164, the center of the gourd dipper-shaped seed sowing wheel 16 is provided with the seed sowing shaft fixing seat 164, the support rib 163 is connected with the gourd dipper-shaped seed sowing wheel wall 162 and the seed sowing shaft fixing seat 164, and the seed sowing shaft fixing seat 164 is provided with a regular hexagonal hole in clearance fit with the transmission shaft 17.
The gourd ladle shaped holes 161 are uniformly distributed on the gourd ladle shaped seed sowing wheel 16, the gourd ladle shaped holes 161 are in the shapes of small front end, large rear end, shallow front end and deep rear end, the depth B is 8 mm, the length L is 14mm, and the width D is 12 mm; the front edge of the gourd-shaped hole 161 has an included angle with a gradient of 70 degreesαThe adoption of the inclined front edge is beneficial to scooping seeds and completing seed filling; the back edge of the gourd-shaped hole 161 has an included angle with 140 degrees of inclinationβThe adoption of the inclined rear edge is beneficial to smooth seed feeding.
Stir kind device 11 including stirring axle 113, stir kind fixed cover of tooth 112 and stir kind tooth 111, it has the fixed cover of tooth 112 of stirring to stir kind to stir the cover on the axle 113, stir kind tooth 111 and be double helix distribution on stirring kind fixed cover of tooth 112, adjacent two sets of stir kind intertooth contained angle and be 45.
The working principle of the invention is as follows: as shown in figures 1-2, after the seed sowing rotating speed is determined according to the seed sowing quantity requirement, seeds are loaded into a seed box 1 and enter a seed filling chamber 12 under the action of the self gravity, the seeds continuously surge towards a gourd ladle-shaped seed sowing wheel 16 under the disturbance of a seed stirring device 11, and when a gourd ladle-shaped hole 161 on the gourd ladle-shaped seed sowing wheel 16 rotates to a seed filling area I, the seeds enter the seed filling gourd ladle-shaped hole 161 under the disturbance of the seed stirring device 16 and the scooping action of the seed filling gourd ladle-shaped hole 161 to complete the seed filling process. The ladle-like seed wheel 16 carries the seeds to the seed clearing zone during rotation
. When the gourd ladle shaped seed sowing wheel 16 passes below the seed cleaning brushes 20 arranged above the left side plate and the right side plate, seeds which exceed the generatrix of the gourd ladle shaped seed sowing wheel 16 in the shaped hole are scraped, and the seed cleaning process is finished. The seeds are then brought to the seed containment zone under rotation of the scoop-shaped seed wheel 16
The rear seed protecting plate 19 is provided with a section of seed protecting arc which plays a role of protecting seeds, so that the seed feeding interval time of each hole seed relative to the previous hole seed is consistent, and the consistency of the seed sowing hole distance is ensured. When the seeds are brought to the seed throwing area
When in use, the protection of the arc surface of the seed protection plate is separated. The seeds are separated from the seed filling gourd-shaped holes 161 under the action of the gravity of the seeds and the centrifugal force generated by the rotation of the gourd-shaped seed sowing wheel 16, and the seeds fall out from the seed feeding port 15 and enter the seed guiding pipe 5 to finish seed feeding. A seed discharging plate 3 is arranged at the bottom of the front end plate 2 and can discharge redundant seeds after the seed discharging process is finished.
The working process of the corn gourd ladle-shaped hole wheel type centralized seed metering device is as follows: after the seeding speed is determined, the seed is loaded, the seed stirring device disturbs the seeds to surge towards the direction of the gourd-shaped seeding wheel, the seeds are scooped in through the shaped holes on the gourd-shaped seeding wheel, the seed is cleared, the seeds are protected, the seeds are thrown, the seed is circularly seeded, and the hole seeding and seed discharging of the 4 rows of corn seeds are completed.
The invention has the following specific implementation effects: the single corn seed sowing device solves the problems of complex structure, high power consumption, low seed sowing efficiency, fussy work, unsuitability for operation in hilly and mountainous areas and the like. The corn gourd ladle-shaped hole wheel type centralized seed sowing device adopts a centralized seed sowing mode, realizes the high-efficiency seed sowing operation of one machine with 4 rows, and can synchronously complete the 4-row seed sowing operation. The seed sowing machine has high seed sowing efficiency, good seed sowing quality and high precision. The seed sowing test result of the gourd-shaped hole wheel type centralized seed sowing device for the corns is shown in figure 1, 1-2 seeds are sowed in each hole, the seeds are not wasted and damaged, the seed sowing qualification rate is high, the miss sowing rate and the re-sowing rate are small, and the requirement of precise hole direct sowing of the corns can be met.
FIG. 1 shows the results of the seed metering test of the scoop-shaped hole wheel type centralized seed metering device for corn
The above embodiments are only for illustrating the technical solutions of the present invention and are not limited, and modifications or equivalent substitutions of the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention should be covered in the claims of the present invention.
Claims (1)
1. A corn gourd-dipper-shaped hole wheel type centralized seed sowing device is characterized by comprising a seed box (1), a front end plate (2), a seed discharging plate (3), a right side plate (4), a seed guide pipe (5), a seed stirring chain wheel (6), a seed sowing chain wheel (7), a bearing end cover (8), a bearing seat (9), a seed layer height adjusting plate (10), a seed stirring device (11), a seed filling chamber (12), a left side plate (13), a bottom arc plate (14), a seed throwing port (15), a gourd-dipper-shaped seed sowing wheel (16), a transmission shaft (17), a silica gel sheet (18), a rear end seed protecting plate (19) and a seed cleaning brush (20); a bearing seat (9) is installed on the right side plate (4), and a bearing end cover (8) is installed on the bearing seat (9); a seed layer height adjusting plate (10) is arranged between the right side plate (4) and the left side plate (13), the right side plate (4), a bottom arc plate (14), a front end plate (2), the front end part of the gourd ladle-shaped seed sowing wheel (16), the left side plate (13) and the seed layer height adjusting plate (10) form a seed filling chamber (12), and a seed box (1) is arranged above the seed filling chamber (12); a transmission shaft (17) is arranged between the right side plate (4) and the left side plate (13), 4 gourd ladle-shaped seed sowing wheels (16) are arranged on the transmission shaft (17), and the right end of the transmission shaft (17) is connected with a seed sowing chain wheel (7); a seed stirring device (11) is arranged between the left side plate (13) and the right side plate (4), the right side of the seed stirring device (11) is connected with a seed stirring chain wheel (6), and a seed cleaning brush (20) is arranged above the gourd ladle-shaped seed sowing wheel (16); seed discharging plates (3) are arranged on the right side plate (4) and the left side plate (13), a seed throwing port (15) is formed by a gap between the bottom arc plate (14) and the rear end seed protecting plate (19), and a seed guide pipe (5) is arranged below the seed throwing port (15); the seed guide pipe (5) is provided with 4 guide pipes which respectively correspond to the 4 gourd ladle-shaped seed sowing wheels (16); the arc part of the rear end seed protecting plate (19) is provided with a silica gel sheet (18); the gourd ladle-shaped seed sowing wheel (16) comprises a gourd ladle-shaped seed sowing wheel wall (162), a support rib (163) and a seed sowing shaft fixing seat (164), and 8 gourd ladle-shaped holes (161) are uniformly distributed on the gourd ladle-shaped seed sowing wheel (16); a seed shaft fixing seat (164) is arranged at the center of the gourd ladle-shaped seed sowing wheel (16), and the support rib (163) is connected with the gourd ladle-shaped seed sowing wheel wall (162) and the seed shaft fixing seat (164); the diameter of the gourd ladle-shaped seed sowing wheel (16) is 100mm, and the thickness is 29 mm; the seed shaft fixing seat (164) is provided with a regular hexagonal hole; the gourd ladle shaped hole (161) is in the shape of small front end, big back end, shallow front end and deep back end, and the whole outer edgeA chamfer of 1.5mm is arranged, the depth B is 8 mm, the length L is 14mm, and the width D is 12 mm; the back edge of the gourd-shaped hole (161) has an inclination included angleαThe angle is 70 degrees, the inclined rear edge is adopted to facilitate seed filling, the front edge of the gourd ladle-shaped hole (161) is provided with an inclined included angle β of 140 degrees, smooth seed feeding is facilitated, the seed stirring device (11) comprises a seed stirring shaft (113), a seed stirring tooth fixing sleeve (112) and seed stirring teeth (111), the seed stirring shaft (113) is sleeved with the seed stirring tooth fixing sleeve (112), the seed stirring teeth (111) are distributed on the seed stirring tooth fixing sleeve (112) in a double-spiral manner, and the included angle between every two adjacent groups of seed stirring teeth is 45 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920922280.XU CN210381863U (en) | 2019-06-19 | 2019-06-19 | Corn gourd ladle-shaped hole wheel type centralized seed metering device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920922280.XU CN210381863U (en) | 2019-06-19 | 2019-06-19 | Corn gourd ladle-shaped hole wheel type centralized seed metering device |
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| CN210381863U true CN210381863U (en) | 2020-04-24 |
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| CN201920922280.XU Expired - Fee Related CN210381863U (en) | 2019-06-19 | 2019-06-19 | Corn gourd ladle-shaped hole wheel type centralized seed metering device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110100541A (en) * | 2019-06-19 | 2019-08-09 | 四川农业大学 | A kind of wheeled concentration dispenser of corn wooden dipper shape type hole |
-
2019
- 2019-06-19 CN CN201920922280.XU patent/CN210381863U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110100541A (en) * | 2019-06-19 | 2019-08-09 | 四川农业大学 | A kind of wheeled concentration dispenser of corn wooden dipper shape type hole |
| CN110100541B (en) * | 2019-06-19 | 2023-12-22 | 四川农业大学 | Corn ladle-shaped hole wheel type centralized seed metering device |
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Granted publication date: 20200424 Termination date: 20210619 |