Small-particle-size seed self-clearing hole wheel type hole sowing seed-metering device

Abstract

The invention belongs to the technical field of rural sowing machinery, and provides a small-particle-size seed self-clearing hole wheel type hole sowing seed-metering device. The device comprises a main shell (2); a seed-metering hole wheel (14) is arranged in the main shell (2); a plurality of evenly-distributed seed scooping teeth (22) are arranged on the outer wall of the seed-metering hole wheel (14) in the circumferential direction of the seed-metering hole wheel; an inclined conical surface (23) with the inclined surfaces on the two sides is arranged between any two adjacent seed scooping teeth (22); seed-metering holes (24) are formed in the two inclined surfaces of each inclined conical surface (23); seed pushing assemblies meshed with the seed-metering holes (24) are arranged inthe seed-metering hole wheel (14); each seed pushing assembly comprises a left seed pushing wheel (17) and a right seed pushing wheel (18) which are symmetrically arranged relative to the seed-metering hole wheel (14); each of the left seed pushing wheels (17) and the right seed pushing wheels (18) is provided with wheel teeth in the circumferential direction; and the wheel teeth of the left seedpushing wheels (17) and the right seed pushing wheels (18) are sequentially meshed with the seed-metering holes (24) in the inner side of the seed-metering hole wheel (14). The device is high in seedfilling reliability and small in seed damage, the qualified rate of seed metering can be effectively increased, and meanwhile, hole blocking can be effectively prevented, so that missing sowing and ridge breaking are avoided.

Description

technical field [0001] The invention belongs to the technical field of agricultural seeding machinery, and relates to a seeder, in particular to a self-cleaning hole-wheel-type seed metering device for small-diameter seeds. Background technique [0002] my country is a big country for planting small-sized seed crops. The small-sized seeds refer to seeds with an average particle size of less than 3 mm, mainly including rapeseed, millet, and some vegetables and flower seeds. At the same time, my country is also the world's largest rapeseed producer, with planting area and rapeseed output accounting for about 1 / 3 of the world. More than half of my country's edible vegetable oil comes from rapeseed, and its planting industry has always been an important part of my country's agricultural production. With the development of agricultural machinery, a large number of advanced and reliable planting machinery, especially harvesting machinery and field management machinery, have been w...

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned shortcomings of the prior art, the object of the present invention is to provide a self-cleaning hole wheel type seed metering device for small particle size seeds, which is used to solve the problem of easy damage to the small particle size seed metering devices in the prior art. , Difficulty in precision sowing, easy blockage of the seeding holes and unreliable seed filling

Images