2results about How to "Reduce miss rate" patented technology

The present application relates to the technical field of seeding, in particular to a kind of air blowing seed disturbing type air suction type peanut seed metering method, comprising the following steps: seed enters seed chamber mechanism, the strain signal of corresponding detection area is collected by strain gauge, and the equivalent pile seed pressure response value of each detection area is constructed;The strength index, bias index and growth index of various piles are calculated;The target rotation angle of corresponding jet head is calculated, and the target jet frequency of corresponding jet head is calculated;The target rotation angle is converted into the rotation pulse number and rotation angle of corresponding motor, and the directional seed disturbing of jet head is driven to aim at corresponding seed pile position, so that seed is in suspended state;When seed suction mechanism carries peanut seed from negative pressure area to non-negative pressure area, peanut seed realizes seed dropping.This application detects the state of seed pile by strain gauge, realizes the automatic adjustment of jet head rotation angle and jet frequency, so that jet seed disturbing can actively aim at seed gathering area and implement directional disturbance, improve seed metering accuracy.

The utility model discloses a kind of seed metering device with arc flow guide plate, it is related to agricultural production equipment technical field.Seed metering device includes front shell, arc flow guide plate, seed metering disc, rear shell and connecting shaft, arc flow guide plate, seed metering disc and rear shell are sequentially connected by connecting shaft, arc flow guide plate includes fixed seat, arc flow guide rod and circular flow guide piece, one end of arc flow guide rod is connected with fixed seat, the other end of arc flow guide rod is connected with circular flow guide piece;Seed metering disc is provided with several evenly distributed composite holes.In the utility model, when arc flow guide plate rotates, it exerts certain circumferential thrust and radial pressure on inner layer population, and is transmitted to outer layer population from inside to outside, so that the population of entire filling seed area moves violently, thereby increasing the filling force and relative movement speed of the seed to be filled above composite hole.The arc flow guide plate of the utility model can effectively avoid seed damage compared with existing straight line flow guide plate, and effectively improve filling effect under high-speed operation.