Drum-type negative pressure detoxification minituber precision seed sowing device

Abstract

The utility model discloses a drum-type negative pressure detoxification minituber precision seed-metering device. The seed-metering device consists of a seed box, a seed-metering device box body, an observation window, an end cover, a seed guide pipe, a quick seed unloading plate, a seed-metering drum, a seed-metering shaft, a chain wheel and a wear-resistant sealing sleeve, wherein the seed box, the end cover, the seed guide pipe and the seed-metering device box body are connected through screws; the quick seed unloading plate is mounted on the end cover through a butterfly nut and a stud, and is pulled out to quickly discharge the residual minituber in the seed-metering device after the seeding work is completed; the seed-metering device is simple in structure and reasonable in layout, and can meet the seeding requirements of the minituber, reduce the damage to seeds and improve the seeding efficiency and the seeding precision of the minituber.

Description

Technical Field

[0001] The utility model relates to the technical field of virus-free micro-potato precision seeding, in particular to a drum-type negative pressure virus-free micro-potato precision seeding device. Background Art

[0002] my country ranks first in the world in both potato planting area and production, but the yield per unit area still lags behind the world average. Currently, cut potatoes are mainly used for potato sowing. However, cut potatoes may lack buds, become infected with bacteria and viruses, and rot, and there is a significant problem of missed sowing. Therefore, the use of virus-free miniature potatoes for sowing has become a good alternative. Practice has shown that the use of virus-free miniature potatoes (abbreviated as miniature potatoes) instead of cut potatoes has a significant yield-increasing effect. The yield per unit area can generally increase by 30% to 50%, and can even increase by 3 to 4 times. Therefore, the design of a roller-type negative pressure virus-free miniature potato precision seeding device has direct economic benefits and is of great significance for improving the efficiency of mechanized sowing of miniature potatoes and reducing labor costs. Summary of the Invention

[0003] The purpose of this utility model is to address the above problems and to research and design a roller-type negative pressure virus-free micro-potato precision seeding device. The main function of the seeding device is to meet the high-speed precision sowing requirements of virus-free micro-potatoes and to ensure extremely low missed and reseeding rates.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a drum-type negative pressure detoxified micro-potato precision seeding device mainly consists of a seed box, a seeding device box body, an observation window, an end cover, a seed guide tube, a quick seed unloading plate, a seeding roller, a seeding shaft, a sprocket, and a wear-resistant sealing sleeve; wherein the negative pressure enters from the air inlet on the end cover through the fan, and a vacuum negative pressure area is formed between the end cover and the potato seeding roller to generate airflow suction, thereby causing the micro-potatoes to be adsorbed on the air holes of the seeding roller.

[0005] As the preferred solution of the present invention, the seed metering device has a simple overall structure, a reasonable and compact layout, and has the characteristics of high working reliability, low reseeding rate, high sowing accuracy, and high sowing efficiency.

[0006] As a preferred solution of the present invention, the air holes on the seeding drum are designed according to the size of the mini-potatoes, thereby improving the degree of adsorption contact with the mini-potatoes and ensuring the adsorption effect on the mini-potatoes.

[0007] As a preferred solution of the present invention, a quick seed unloading plate is installed on the end cover of the seed meter, which can quickly discharge the remaining micro-potatoes from the bottom of the box after the seed meter finishes working, reducing the waste of micro-potato seeds and thus reducing the cost of micro-potato seed potatoes, saving labor time and improving work efficiency.

[0008] As a preferred solution of the present invention, the seed guide tube can directly guide the micro-potato seeds discharged by the seed metering device into the seed furrow, thereby reducing the deviation between the actual position and the theoretical position when the seeds fall.

[0009] The described drum-type negative pressure detoxified micro-tuber precision seeding device uses a negative pressure fan to adsorb micro-tubers on the air holes of the seeding drum, ensuring that each seed eye adsorbs only one micro-tuber, avoiding the reseeding phenomenon of traditional seeders, and can achieve high-speed and precise sowing of micro-tubers, improve the sowing rate and sowing quality of micro-tubers, and realize mechanization of micro-tuber sowing. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is the main view of the seed meter

[0011] Figure 2 This is a side view of the seed meter

[0012] Figure 3 This is a cross-sectional axonometric view of the seed meter.

[0013] Figure 4 This is the main view of the seed meter with the end cover removed

[0014] Explanation of the numbers in the figure: seed box 1; seed metering device box body 2; observation window 3; end cover 4; seed guide tube 5; quick seed unloading plate 6; seeding roller 7; seeding shaft 8; sprocket 9; wear-resistant sealing sleeve 10. DETAILED DESCRIPTION

[0015] The present invention is described in further detail below with reference to the accompanying drawings and specific embodiments:

[0016] like Figure 1 Figure 2 As shown, the front view and side view of a roller-type negative pressure detoxification micro-potato precision seeding device of the utility model are given. The seeding device consists of the seeding device box 2; the end cover 4 is the main body, and the two are connected by screws. The seed box 1 and the seed guide tube 5 are respectively connected to the upper and lower parts of the seeding device box 2 by screws, and the sprocket 9 is fixed to the seeding shaft 8 by bolts and nuts, driving the seeding shaft 8 and the seeding drum 7 to rotate during operation; the quick seed unloading plate 6 is installed on the end cover 4 by butterfly nuts and studs, which is convenient for completing the operation in the seeding device. By unscrewing the butterfly nuts and pulling out the quick seed unloading plate 6, the remaining micro-potatoes inside the seeding device are discharged, realizing a quick seed unloading process.

[0017] like Figure 3As shown, a sectional axonometric view of a roller-type negative pressure detoxified micro-potato precision seeding device of the utility model is given. A certain number of air holes are designed on the seeding roller 7 to adsorb micro-potatoes. When replacing micro-potatoes of different specifications, the seeding roller 7 needs to be replaced; there is a protruding air-isolating structure on the inner side of the end cover 4. When the air holes on the seeding roller 7 rotate to the bottom of the air-isolating structure, the negative pressure disappears and the micro-potatoes fall; a wear-resistant sealing sleeve 10 is sleeved on the air-isolating structure to reduce the loss caused by friction and improve the sealing of the internal negative pressure area.

[0018] like Figure 4 As shown, the utility model is a main view of a roller-type negative pressure detoxification micro-potato precision seeding device, the seeding roller 7 is mounted on the seeding shaft 8, and rotates with the seeding shaft 8 when the seeding device is working. After the micro-potatoes are adsorbed on the air holes, they are moved with the rotation of the seeding roller 7. When the micro-potatoes are moved to the bottom of the air isolation structure, the micro-potatoes fall down, and the micro-potatoes stuck at the air holes continue to move with the seeding roller 8. When they are moved to the baffle below the seeding device box 2, the micro-potatoes stuck at the air holes are pushed off, and the seeding device continues to perform the next working process.

[0019] The working principle of the present invention is described below. The micro-potatoes enter the seeding device from the seed box 1. Under the action of the quick seed unloading plate 6, the micro-potatoes accumulate at the lower right side of the seeding device. A negative pressure fan is connected to the air inlet of the end cover 4. The fan forms a negative pressure area inside the clamped seed drum 7 and the end cover 4, so that the micro-potatoes entering the seeding device box 2 are adsorbed onto the air holes of the seeding drum 7. Then, the sprocket 9 rotates to drive the seeding shaft 8 and the seeding drum 7 to rotate, carrying the adsorbed micro-potatoes for transportation. When the micro-potatoes are transported to the lower left side of the seeding drum 7, the air holes are blocked by the protruding air isolation structure on the end cover 4. At this time, the negative pressure disappears, and the micro-potatoes fall and fall along the seed guide tube 5 to the seed furrow, completing the entire micro-potato sowing process. After the seeding work is completed, the quick seed unloading plate 6 can be pulled out through the butterfly nut to discharge the excess micro-potatoes.

[0020] The utility model can meet the requirements of high-speed and precise sowing of micro-potatoes, uses negative pressure to adsorb the micro-potatoes, causes little damage to the micro-potatoes, and has good versatility; the overall structure of the seed meter is simple, the layout is reasonable, and it has high performance.

Claims

1. A drum-type negative pressure detoxification micro-potato precision seeding device, characterized by The invention comprises a seed box (1); a seed metering device housing (2); an observation window (3); an end cover (4); a seed guide tube (5); a quick seed discharge plate (6); a seeding roller (7); a seeding shaft (8); a sprocket (9); and a wear-resistant sealing sleeve (10); wherein the seed box (1), the end cover (4), the seed guide tube (5) and the seed metering device housing (2) are connected by screws; the quick seed discharge plate (6) is connected to the end cover (4) by butterfly nuts and studs; the seed metering device can replace the corresponding seeding roller (7) according to the different specifications of micro-tubers before working; and after the sowing process is completed, the quick seed discharge plate (6) can be pulled out to quickly discharge the remaining micro-tubers in the seed metering device.

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