A pneumatic ultra-high-speed precision seed metering device

Abstract

The invention discloses a pneumatic-type ultra high-speed precise seed metering device. According to the pneumatic-type ultra high-speed precise seed metering device, bionic leech sucking discs are fixedly arranged in seed sucking holes through hinged transmission mechanisms; bionic human fingerprint structures are fixedly arranged on the internal surfaces of the bionic leech sucking discs; a seedmetering disc shaft is movably connected with a seed metering device cover; a seed metering pipe is fixedly connected with one side of the seed metering device cover, and is arranged right below theseed sucking holes on a seed metering disc; a flexible extrusion wheel is movably connected with the seed metering device cover; a seed metering disc shaft gear is fixedly connected with the seed metering disc shaft; a flexible extrusion wheel shaft gear is fixedly connected with a flexible extrusion wheel shaft, and is designed to mesh the seed metering disc shaft gear; one end of a ventilating pipe is fixedly connected with a housing, and the other is fixedly connected with a sealed wind box; one side of the sealed wind box provided with the seed sucking holes is provided with a rubber windshielding board. The pneumatic-type ultra high-speed precise seed metering device is designed taking leech sucking discs and human fingerprint structures as bionic models, the bionic leech sucking discs and the bionic human fingerprint structures are designed, seed sucking efficiency is increased, seed clamping stability is increased, and the adaptability on seed difference is increased, seeds areloaded with small force, so that damage of seeds is not easily caused, and missing seeding rate of high-speed precise seed metering mechanisms is reduced.

Description

technical field [0001] The invention belongs to the technical field of agricultural machinery, and in particular relates to a pneumatic ultra-high-speed precision seed metering device. Background technique [0002] The core mechanism of the pneumatic high-speed precision seed metering device is the seed suction mechanism, which sucks the seeds through airflow suction in the seed picking stage, and then clamps and moves the seeds by means of suction and friction during the seed picking stage. When working in a complex field environment, due to the impact of air pressure fluctuations and increased vibration on the quality of high-speed precision sowing operations, the suction mechanism is prone to the following problems: ①The decrease in suction leads to leakage during the seed picking stage; ②The decrease in suction and the intensification of vibration, Cause the phenomenon of dropping kind to take place in this kind of stage; 3. crop seeds have very big individual difference...

AI Technical Summary

Problems solved by technology

When working in a complex field environment, due to the impact of air pressure fluctuations and increased vibration on the quality of high-speed precision sowing operations, the suction mechanism is prone to the following problems: ①The decrease in suction leads to leakage during the seed picking stage; ②The decrease in suction and the intensification of vibration, 3. The crop seeds have a lot of individual differences, which leads to poor clamping effect of the suction mechanism, which increases the impact of vibration on the clamping effect

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