Pneumatic transmission type high-speed corn precision seed supply device

Abstract

The invention relates to a pneumatic transmission type high-speed corn precision seed supply device. The device comprises a seed box, a seed supply shell and a Venturi seed supply pipe which are sequentially connected from top to bottom; the seed supply shell comprises an upper cavity and a lower cavity; a positioning through hole is arranged at the center of the upper cavity; a seed supply wheelis installed in the positioning through hole; the lower cavity of the seed supply shell is funnel-shaped, and the bottom of the seed supply shell is provided with a seed falling port; the horizontallyarranged Venturi seed supply pipe comprises a Venturi cavity, an air inlet pipe, a delivery pipe and a feeding pipe, and the air inlet pipe, the seed supply cavity and the delivery pipe are horizontally connected in sequence; and the feeding pipe is obliquely connected with the seed falling port of the seed supply shell and the upper end of the Venturi cavity. The pneumatic transmission type high-speed corn precision seed supply device provided by the invention is compact in structure and matched with a high-speed precision seed metering device for use, so that the function of precision feeding can be achieved, the problem that seed filling is difficult due to seed accumulation is effectively solved, the working performance of the seed metering device is greatly improved, the seeding consistency is ensured, and the quality of corns is ensured.

Description

technical field [0001] The invention relates to an air-driven high-speed corn precision seed supply device, which belongs to the technical field of agricultural machinery. Background technique [0002] Maize mechanized precision sowing can save artificial thinning, save seeds, increase production and save costs, so it has become the development trend of corn sowing in recent years. The seed metering device with stable performance and high-speed operation has become the key to realize the mechanized precision sowing of corn. [0003] At present, most of the high-speed seeding devices are pneumatic seed metering devices. The main reason is that they do not have high requirements on the shape of the seeds, and the damage rate is small and the structure is simple. However, the adaptability to non-round seeds such as corn is poor, mainly due to the high requirements on negative pressure stability, seed layer height and seeding disc rotation speed during the filling process, so t...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a pneumatic high-speed corn precision seed supply device, which uses pneumatic form to change the original piled seed group into a continuous seed flow and send it into the seed meter to solve the current problem of the current seed meter. This kind of poor performance problem can improve the operation speed and ensure the operation quality at the same time

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