Furrow opener for seeder

Abstract

The invention discloses a furrow opener for a seeder and belongs to the field of agricultural machinery. The furrow opener comprises a support frame, two furrow opening discs, a disc fastening shaft,an outer fastening assembly and an inner fastening assembly. The two furrow opening discs are arranged below an arc-shaped support cover, the two ends of the disc fastening shaft are installed in thecenters of the two furrow opening discs respectively, the outer fastening assembly is mounted on the upper surface of one side of the arc-shaped support cover, and the inner fastening assembly is installed on the lower surface of one side of the arc-shaped support cover. The outer fastening assembly includes an outer fastening body, a bolt and nut assembly and an outer fastening plate, and the bolt and nut assembly is mounted on the upper surface of the arc-shaped support cover through a racetrack-shaped connection hole. One side of the outer fastening plate is fixedly mounted on a flanged section and the other side of the outer fastening plate is in contact with the outer sides of the furrow opening discs. The furrow opener has the advantages that the adoption of the outer fastening assembly and the inner fastening assembly for fastening the outer sides and the inner sides of the two discs respectively greatly increases the fixed points and the fixed area between the two discs and improves the stability of the furrow opening discs in furrow opening.

Description

technical field [0001] The invention relates to the field of agricultural machinery, in particular to a ditch opener for a seeder. Background technique [0002] In traditional farming, after plowing and land preparation, the opener ditches and sows seeds in the loose plow layer, the ditching resistance is small, and the sharpness of the cutting edge has no obvious impact on the forward resistance of the opener. However, in no-tillage stubble land, the surface is solid and covered with a large amount of straw, it is difficult for the opener to enter the soil, and the resistance is large, so it needs good performance of breaking stubble into the soil. It should have a sharp edge to reduce the forward resistance of the opener and reduce the power consumption of the tractor; the surface soil disturbance is small to reduce the mixing of dry and wet soil in the upper and lower layers of the soil, and create a loose seedbed that is conducive to seed germination and root growth. Im...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the existing problems of the opener for seeder in the prior art, such as loose fastening between two disks, easy loosening, short service life, and need for regular maintenance, the present invention discloses a opener for seeder. It includes a support frame, two grooved disks, a disk fastening shaft, an outer fastening assembly for fixing the two grooved disks from the outside, and an inner fastener assembly for fixing the two grooved disks from the inside. The support frame includes a support rod and an arc-shaped support cover; the upper end of the support rod is fixedly installed on the planter frame, and the lower end is fixedly installed on the upper surface of the arc-shaped support cover. The disc is arranged under the arc-shaped support cover, the two ends of the disc fastening shaft are respectively installed in the center of the two grooved discs, and the outer fastening assembly is installed on one side of the arc-shaped support cover surface, the inner fastening component is installed on the lower surface of one side of the arc-shaped support cover, and the outer fastening component and the inner fastening component are located on the same side of the arc-shaped support cover; the outer fastening The fastening assembly includes an outer fastening body, a bolt and nut assembly and an outer fastening plate. The outer fastening body is composed of a main body section in the middle and flange sections at both ends of the main body section. Between the flange section and the main body section The included angle is 90°, the main body section is provided with a racetrack-shaped connecting hole, and the bolt and nut assembly is installed on the upper surface of the arc-shaped support cover through the racetrack-shaped connecting hole; one side of the outer fastening plate is fixed Installed on the flange section, the other side is in contact with the outside of the grooved disc

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