Zero-speed seed dropping mechanism

Abstract

The invention discloses a zero-speed dropping mechanism, and belongs to the technical field of agricultural machinery. An inserting driving shaft is rotationally arranged in a fixed shaft sleeve, an eccentric disk is fixedly arranged on the outer part of the fixed shaft sleeve, the eccentric disc assembles a driven wheel disc through a bearing, a driving wheel disc is fixedly arranged on one side end part of the driving shaft and the driving wheel disc is coaxial with the driving shaft, an upper eccentric shaft and a lower eccentric shaft are rotationally plugged in the driven wheel disc and the driving wheel disc respectively in a matched mode so that a seed dropping tube can be assembled on a position between the driven wheel disc and the driving wheel disc, a pin roll of a suited torsion return spring is arranged on the lower eccentric shaft, a seed dropping control gate is swingingly arranged on the pin roll in a sleeving mode, and a seed dropping control baffle is assembled on the inner side wall of the driving wheel disc; the zero-speed dropping mechanism is low in seed dropping position, a seed dropping position is perpendicular to the ground all the time, and can achieve a zero-speed dropping operation; meanwhile, the zero-speed dropping mechanism has the advantages of being original in structure, good in operation quality, reliable to use, high in universality degree and strong in assorting ability.

Description

technical field [0001] The invention belongs to agricultural machinery, and mainly relates to a zero-speed seeding mechanism used in cooperation with a seed metering device. Background technique [0002] With the development of precision seeding technology in my country's agriculture, zero-speed seeding in sowing operations has become a necessary condition for ensuring and realizing precision seeding operations. The so-called "zero-speed seeding" means that the instantaneous horizontal speed of the seeds discharged from the seed meter is zero when they fall on the soil surface of the seedbed. During the zero-speed seeding process, the seeds have no slippage and no bouncing relative to the soil surface when they are in contact with the soil surface of the seedbed, which greatly improves the qualified rate and accuracy of planting spacing and ensures the quality of sowing operations. In recent years, many colleges and universities, agricultural research institutes and agricul...

AI Technical Summary

Problems solved by technology

In recent years, many colleges and universities, agricultural research institutes and agricultural machinery enterprises are conducting research and development of machinery and tools to meet and realize "zero-speed seeding", but they have not been able to meet the agronomic requirements.

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