Uniform and precise automatic seed metering device of double-row cassava seeder

The invention relates to a uniform and precise automatic seed metering device of a double-row cassava seeder. The uniform and precise automatic seed metering device comprises a rack, a seed supply hopper, a posture adjusting and distributing mechanism, a conveying mechanism, a distance adjusting mechanism, two seed filling mechanisms, two seed metering mechanisms, two seed outlet posture adjusting mechanisms and a motor; the seed supply hopper is arranged at the front part of the rack; the posture adjusting and distributing mechanism is arranged at the position, corresponding to the rear part of the seed supply hopper, on the rack; the conveying mechanism is arranged at the position, corresponding to the rear part of the posture adjusting and distributing mechanism, on the rack; the distance adjusting mechanism is arranged at the position, corresponding to the rear part of the conveying mechanism, on the rack, and the two seed metering mechanisms are mounted on two sides of the distance adjusting mechanism re