Development of the seed-metering test bench with sand-paving conveyor belt

Seed metering device test bench is the key equipment for the device performance test. For solving the deficiency of the oil-belt method, we developed a seeding device test bench including the part of draining sand, draining seed, conveying and controlling by paving sand on conveyer belt. Test results showed that paving sand method can effectively eliminate the seed bounce. Paving high clean sand on the belt can provide favorable background for computer identifying seeds distribution. In addition, this equipment has advantage of no oil pollution, seeds recycling use and convenient operation.