Vibrating seed meter with inner filling and outer row hole

Abstract

An inner-feeding outer-discharging hole vibration seed metering device belongs to an agricultural machine. A left cover plate is arranged at the left end part of a cylindrical outer cylinder, a right cover plate is arranged at the right end part of the cylindrical outer cylinder, and a driving shaft is supported on the left and right cover plates in an insertion manner. An annular slideway and an arc-shaped seed-protecting board are fixed on an inner wall face of the right cover plate. A cylindrical inner barrel is fixed in the cavity of the cylindrical outer cylinder and located on the driving shaft. A side wall of the cylindrical inner barrel is uniformly provided with N seed feeding ports, and N seed receiving cylinders with the same quantity as that of the seed feeding ports are externally located at the side wall of the cylindrical inner barrel. A trapezoidal seed taking shell is arranged at the outside of the seed receiving cylinders. A vibration rod and a push rod are fixed at the outside of the seed receiving cylinders. A fixing board provided with a supporting rod and a position-limiting rod is fixed at the inner wall face of the cylindrical outer cylinder, and a folding rod and a torsional spring sleeve the supporting rod. Through adoption of the inner-feeding vibration outer-discharging structure, the sowing precision is improved. The seed metering device is novel and reasonable in structure, prevents seed breakage, and is good in operation quality and high in efficiency.

Description

technical field [0001] The invention belongs to agricultural machinery, and mainly relates to a hole type mechanical seed metering device. Background technique [0002] The type hole wheel mechanical seed metering device is a seed metering device that has been used for sowing soybeans and corn in dry fields for many years in Heilongjiang, Jilin and other provinces in northern my country. Due to its simple structure, low cost and good seeding performance It has the characteristics of high retention in agricultural production operations. However, because it adopts the method of setting the seed-filling hole on the outer surface of the seed-metering wheel, the seeds are filled into the hole from the periphery of the seed-metering wheel when filling the seeds. Discharge from the seed wheel hole to complete the seed filling operation. When the seeds are stuck in the hole and cannot be discharged by centrifugal force and self-weight, the holes will be missed. At this time, a rigi...

AI Technical Summary

Problems solved by technology

When the seeds are stuck in the hole and cannot be discharged by centrifugal force and self-weight, the holes will be missed. At this time, a rigid or elastic seed cleaning knife must be used to forcibly dig out the seeds from the hole, which can easily cause overcrowding. Particle failure, job quality decline

Especially in recent years, with the development of my country's precision agronomic technology, the traditional hole-type seed metering device with external charging and external discharge and forced seed clearing can no longer adapt to and meet the actual needs of production operations.

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