Seed-metering device for sowing machine

Abstract

The invention discloses a seed-metering device for a sowing machine and belongs to the field of agricultural machinery. The seed-metering device comprises a rack, a seed storing groove, a seed-metering wheel, a seed-metering speed adjusting stopping block and a seed-metering guide part, wherein the seed storing groove, the seed-metering wheel, the seed-metering speed adjusting stopping block and the seed-metering guide part are mounted on the rack; the seed-metering wheel and the seed-metering speed adjusting stopping block are mounted at an outlet position of the seed storing groove; one endof the seed-metering speed adjusting stopping block is mounted at one side of an outlet of the seed storing groove through a first rotary shaft and can rotate along the first rotary shaft; the other end of the seed-metering speed adjusting stopping block is a free end; a seed metering channel is formed by the other end of the seed-metering speed adjusting stopping block and the lower circumferencesurface of the seed-metering wheel. The seed-metering device disclosed by the invention has the beneficial effects that the seed-metering wheel and the seed-metering speed adjusting stopping block are combined to carry out seed metering, and the size of the seed metering channel is controlled through adjusting the first rotary shaft; the automatic rotation of the seed-metering wheel drives seedsto move toward the outlet of the seed metering channel and the seed metering speed is adjusted.

Description

technical field [0001] The invention relates to the field of agricultural machinery, in particular to a seeding device for a seeder. Background technique [0002] At present, there are many kinds of seed metering devices for planters in our country, and the principles are different. Some seed metering devices consume a lot of power and have complicated supporting facilities; although some seed metering devices have a simple structure, their sowing effect is poor or the seeds are seriously damaged, and the use effect is not ideal. [0003] For example, the utility model patent with the notification number CN202396156U discloses a general-purpose seed metering device, including a housing, a drive shaft supported on the two side walls of the housing, and a seed wheel sleeved on the drive shaft. One side of the mouth is against the seed protection plate, and the seed wheel is composed of a group of independent groove wheels with angular misalignment. Strong resistance, but poo...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the problems of high energy consumption, poor seeding effect, and serious damage to seeds in the prior art, the invention discloses a seeding device for a seeder, which includes a frame, a seed storage tank, a seeding wheel, a rowing Seed speed adjustment block and seeding guide, the seed storage tank, seeding wheel, seeding speed adjustment block and the seeding guide are all installed on the frame, the seeding wheel and the seeding guide The seeding speed adjustment stopper is installed at the outlet of the seed storage tank; the seeding speed adjustment stopper is installed on the side of the seed storage tank outlet through one end of the first rotating shaft and can rotate along the first rotating shaft , the other end is a free end, forming a seeding channel with the lower circumferential surface of the seeding wheel

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