Disc type telescopic tooth seed metering device

Abstract

The invention belongs to the technical field of agricultural machinery seeding equipment, and relates to a disc type telescopic tooth seed metering device. The device is formed by connecting a seed box, an adjusting rod, a shell, an arc tooth adjusting disc, a seed protection plate, telescopic arc teeth, a seed guide mechanism, a seed metering shaft and a seed scraping plate. According to the device, the structure is novel, when the seed metering device works, seeds fall into a seed filling area through the seed box, and the seed metering shaft drives telescopic arc teeth to rotate, the seed scraping plate brushes off residual seeds in the telescopic arc teeth, then the telescopic arc teeth drive the seeds to enter the seed falling area, the seeds enter the seed guiding device under the action of dead weight, then the seeds fall onto a seed guiding spoon and fall into seed ditches through a seed guiding pipeline under the drive of a seed guiding wheel, and when the rotating adjusting rod rotates to three annular sliding grooves, three-level adjustment of the seed metering amount can be achieved, it is guaranteed that the row spacing is uniform and accurate after seed feeding, the qualified rate of the seed row spacing is greatly increased, and wide market prospects are achieved.

Description

technical field [0001] The invention belongs to the technical field of agricultural machinery seeding equipment, and relates to a seed metering device, in particular to a disc type telescopic tooth seed metering device. Background technique [0002] The seed meter is the core component of the seeder and the main factor that determines the characteristics of the seeder and the quality of sowing. The working performance of the seed meter will directly affect the working efficiency of the seeder and the quality of crop emergence. However, the existing disc-type seed metering device cannot adjust the size of the seeding amount according to actual conditions. In addition, after the seeds leave the metering device, they fall freely in the seed guide tube under the action of gravity. In the process, the seeds are inevitably disturbed by the air flow, and phenomena such as collision, bounce and friction occur at the same time. The above factors are all The uniformity of the initia...

AI Technical Summary

Problems solved by technology

However, the existing disc-type seed metering device cannot adjust the size of the seeding amount according to the actual situation

In addition, after the seeds leave the metering device, they fall freely in the seed guide tube under the action of gravity. In the process, the seeds are inevitably disturbed by the air flow, and phenomena such as collision, bounce and friction occur at the same time. The above factors are all Change the uniformity of the initial throwing of the seeds from the seed meter, resulting in uneven landing points and uneven plant spacing after the seeds leave the seed tube, which affects the growth of the crops to a certain extent

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