Air suction type precision seeding apparatus for peanuts

Abstract

The invention belongs to the field of agricultural machinery and particularly relates to an air suction type precision seeding apparatus for peanuts. Negative-pressure airflow seed suction and mechanical seed clamping principles are combined, the working processes of pneumatic single-grain seed suction, mechanical seed clamping and seed adding by self-gravity of seeds are completed sequentially, and a seed suction device and a seed carrying device are innovatively designed. The seed suction device comprises a seed discharge plate and holes which are straight through holes distributed in the circumferential direction of the seed discharge plate. The seed carrying device comprises a guide plate, a cam, a clamping assembly, an external moving plate and the like, the guide plate is provided with a groove, the clamping assembly clamps and loosens seeds along the groove of the guide plate under the action of the cam, and a soft clamping pad is arranged at one end of the clamping assembly toplay a cushioning role and reduce damage to seeds when seeds are clamped. By use of negative-pressure airflow seed suction and mechanical assisted seed carrying, the processes of large-grained seed suction, seed carrying and seed adding can be realized, negative pressure energy consumption is reduced, and the percent of pass of the seeding apparatus is increased.

Description

technical field [0001] The invention belongs to the field of agricultural machinery, and in particular relates to an air-suction precision seed metering device suitable for peanuts, and also suitable for other seeds with relatively large grains. Background technique [0002] Precision sowing is a sowing method that makes seeds evenly sow into the soil with reasonable density and depth according to the requirements of agricultural planting technology. The key to the quality of sowing operations. In order to adapt to the precision seeding of peanuts, the basic working principle of pneumatic adsorption seed migration is adopted, and an air suction peanut precision metering device with auxiliary clamping device is designed to realize the process of sucking seeds, carrying seeds and throwing seeds. Peanut single-seed precision sowing improves planting efficiency and forms a modern agricultural precision planting model in the peanut planting process. [0003] At present, there a...

AI Technical Summary

Problems solved by technology

However, the skin of peanut seeds is thin and the seeds are large. External force or collision between seeds can easily cause mechanical damage to the seeds. Damaged seeds will affect the germination rate, resulting in low seed emergence rate and reduced yield.

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