Duckbilled seed metering device for peanut seeder and use method of duckbilled seed metering device

Abstract

A duckbilled seed metering device for a peanut seeder comprises a seed disc, pressing boards, duckbilled pipes, fixing pins, movable segment nozzles, a blocking board, a seed discharging shaft, an air suction chamber, a seed suction chamber, reset springs, an idler wheel disc and a seed scraping device. A seed channel allowing seeds to rotate is welded to the inner side of the idler wheel disc and the seed disc is sleeved with the seed channel. The seed discharging shaft is rotationally and detachably sleeved with the seed disc. The air suction chamber and the seed suction chamber are completely separated through the seed disc. The duckbilled pipes are arranged on the outer side of the idler wheel disc. The pressing boards and the movable segment nozzles are integrated and the pressing boards are hinged to the duckbilled pipes through the fixing pins. The reset springs are connected with the pressing boards and the idler wheel disc, so that duckbilled parts are in the normally-closed state. The seed scraping device is arranged in the seed suction chamber. The seed discharging shaft is sleeved with the blocking board and one end of the blocking board abuts against the seed disc. The air suction chamber is connected with a draught fan through an air suction hose. The seed suction chamber is connected with a seed box through a pipe. A single seed or double seeds can be sown in a hole by changing the number of pits in the seed disc, the sowing depth can be changed by changing the length of the duckbilled pipes, damage to the seeds is small, and it can be guaranteed that the sowing depth is identical.

Description

technical field [0001] The invention relates to a seeding device, more particularly to a duckbill seeding device for a peanut seeder and a method for using the same. Background technique [0002] Film-covered planting is a major feature of peanut production in my country, and it has been widely promoted in major peanut production areas in my country. At present, most of the peanut seeders developed in the domestic market are of the mechanical internal filling type. When sowing, more The phenomenon of sowing or missing sowing is serious, and the surface of the grain is easily damaged, which affects the emergence rate. After sowing, it can be covered with film. Although it can basically meet the agronomic requirements of peanut sowing, it is time-consuming and laborious to manually break the film and pick the seedlings. It is easy to have different shades, resulting in uneven emergence, which affects the improvement of peanut yield. Moreover, the traditional mechanical seed met...

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