Air-suction type spiral grooved wheel seed sowing device

Abstract

The invention provides an air-suction type spiral grooved wheel seed sowing device, and belongs to the technical field of agricultural machinery sowing machinery. The air-suction type spiral grooved wheel seed sowing device structurally consists of a shell, a blocking sleeve, a blocking sleeve end cover, a seed sowing shaft, a seed sowing wheel, an adjusting sleeve, an air suction pipeline, a seedsowing wheel end cover, an electromagnetic vibrator, an adjusting handle, a seed protecting plate, an air suction chamber, a zero pressure area, a seed guiding device and a baffle plate. The air-suction type spiral grooved wheel seed sowing device is simple in structure and clear in working principle, and is simple and easy to implement; by a spiral groove structure of the seed sowing wheel, thephenomenon of seed sowing pulsation can be reduced; meanwhile, by an air suction structure, the seed filling performance is improved; by the electromagnetic vibrator, the seed sowing uniformity of theseed sowing device is improved effectively; by the adjusting sleeve, the size of an opening of a spiral groove can be adjusted, and the seed sowing quantity is controlled; and by the seed guiding device, the plant spacing is uniform and accurate after seeds are fed, the plant spacing yield of the seeds is greatly increased, and the market prospect is wide.

Description

technical field [0001] The invention belongs to the technical field of agricultural machinery sowing machinery, and relates to a seed metering device, in particular to an air-suction spiral groove wheel seed metering device. Background technique [0002] The seed meter is the core component of the seeder and the main factor that determines the characteristics of the seeder and the quality of sowing. The working performance of the seed meter will directly affect the working efficiency of the seeder and the quality of crop emergence. The outer groove wheel type seed meter is the most commonly used seed meter on the seeder at present. It has the advantages of simple structure, good versatility, and stable seeding rate. The seeds are forced to be discharged by moving the seeds. When the grooved wheel turns to the groove, more seeds are discharged, and the teeth are less. Therefore, the seed flow is pulsating, which affects the uniformity of the seeds, and there will be leakage ...

AI Technical Summary

Problems solved by technology

The outer groove wheel type seed meter is the most commonly used seed meter on the seeder at present. It has the advantages of simple structure, good versatility, and stable seeding rate. The seeds are forced to be discharged by moving the seeds. When the grooved wheel turns to the groove, more seeds are discharged, and the teeth are less. Therefore, the seed flow is pulsating, which affects the uniformity of the seeds, and there will be leakage of seeds when filling the seeds. And the amount of seeding can not be controlled

In addition, after the seeds leave the metering device, they fall freely in the seed guide tube under the action of gravity. During the process, the seeds are inevitably disturbed by the airflow, and there are phenomena such as collision, bounce and friction at the same time. The above factors make The uniformity of the initial throwing of the seeds from the seed metering device changes, resulting in uneven landing points and uneven plant spacing after the seeds leave the seed guide tube, which affects the growth of the crops to a certain extent

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