Air suction spoon clamp type double-disc seed metering device

Abstract

The invention discloses an air suction spoon clamp type double-disc seed metering device, and belongs to the technical field of agricultural machinery seeding equipment. The device structurally comprises a shell, a seed box, air suction holes, a spoon clamp, a seed metering shaft, a seed metering disc, a seed falling pipe, a seed guide device and a seed scraping plate, and is novel in structure, seeds fall into a seed filling area through the seed box, the seed metering shaft drives the seed metering disc to rotate, the seeds are absorbed on the air suction holes through the effect of absorbing force, the seed scraping plate brushes away redundant seeds on the surface of the seed metering disc, and then the spoon clamp is driven by a rotating shaft to clamp the seeds. When the seed metering disc rotates to a zero-pressure area, the spoon clamp rotates in the opposite direction, and the seeds enter the seed guide device through the seed falling pipe under the action of dead weight, thenfall onto a seed guide spoon and fall into a seed ditch through a seed guide pipeline under the drive of a seed guide wheel. The problem of seed leakage caused by insufficient negative pressure of anair suction seed metering device is solved, bilateral seed metering can be achieved, it can be guaranteed that the row spacing is uniform and accurate after seeds are fed, and the qualified rate of the row spacing of the seeds is greatly increased.

Description

technical field [0001] The invention belongs to the technical field of agricultural machinery seeding equipment, and relates to a seed metering device, in particular to an air-suction scoop clip-type double-disc 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. As a precision seed metering device, the air suction seed metering device has the characteristics of high seed metering precision, good versatility, strong adaptability to seeds, and no damage to seeds. However, when the vacuum degree of the air suction chamber is not enough, it will cause the phenomenon of seed leakage, and the current air suction seed metering device is for one-side seeding, and the efficiency is not high. [0003] In...

AI Technical Summary

Problems solved by technology

However, when the vacuum degree of the air suction chamber is not enough, it will lead to the phenomenon of seed leakage, and the current air suction seed metering device is one-sided seeding, which is not efficient

[0003] In addition, after the seeds leave the metering device, they fall freely in the seed guide tube under the action of gravity. In the process, the seeds are

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