Air-suction seed suction roller type wide-seedling-zone wheat seed sowing device

Abstract

The invention provides an air-suction roller type wide-seedling-zone wheat seed sowing device. According to the seed sowing device, operations such as seed dressing, seed suction, seed cleaning and seed sowing can be completed in one time, the unevenness of growth vigor of seedlings can be avoided, the seeding quality is effectively improved, wheat is promoted to grow better, and the effect of increasing both production and income is achieved. The seed sowing device comprises a seed box mechanism, a seed suction roller mechanism, a seed cleaning plate, a positive-pressure inflating mechanism and a pressure relief mechanism, wherein the seed box mechanism comprises a seed box and a seed position adjusting plate arranged in the seed box; the seed suction roller mechanism comprises a seed suction roller and a transmission shaft arranged at the axis of the seed suction roller; the seed cleaning plate is arranged at the circumferential outer side of the seed suction roller and is connected with the seed box; the positive-pressure inflating mechanism is located at the bottom of the seed box and comprises a positive-pressure air inlet pipe and a positive-pressure chamber, the positive-pressure chamber has an air inlet and an air outlet, the air inlet communicates with the positive-pressure air inlet pipe, and the air outlet communicates with the seed box; and the pressure relief mechanism comprises a pressure relief wheel supporting plate connected with the transmission shaft, a pressure relief wheel combination arranged on the pressure relief wheel supporting plate and a tension spring connecting the pressure relief wheel supporting plate and the pressure relief wheel combination.

Description

technical field [0001] The invention relates to a wheat seed metering device, in particular to an air-suction seed-suction drum-type wide seedling belt wheat seed metering device, which belongs to the technical field of agricultural machinery. Background technique [0002] The precision sowing of wheat wide seedling belt can make the seeds evenly distributed in the field and form an excellent population structure, which is conducive to ventilation and light transmission in the canopy of the wheat population. Each plant can obtain enough nutrient area and space to absorb water and fertilizer to the maximum. Make the individual grow and develop robustly, effectively carry out tillering, increase the number of ears of wheat, the ears are large, and the grains are full, which has the effect of increasing production and income, while reducing the amount of sowing and reducing operating costs. [0003] The wide seedling belt seeders that can be retrieved at present include the wid...

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Problems solved by technology

[0004] The air-suction seed-suction drum-type seed metering device can adapt to seeds of different shapes, and is a research hotspot at home and abroad. However, the existing air-suction seed-suction drum-type seed metering devices have large air leakage, insufficient seed suction, and Uneven, inflexible rotation and severe wear and other problems

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