Aiming at the problems of airtightness reduction, vacuum pressure demand increase and
planting precision decline, which are caused by the friction between seed plate and sealing …

Vacuum-type pneumatic metering device has gradually replaced traditional mechanical
seeder and been widely used for corn precision planter in China because of its low damage …

Vacuum-type pneumatic metering device has gradually replaced traditional mechanical
seeder and been widely used for corn precision planter in China because of its low damage …

Seeding absence caused by negative pressure drops is a major technical problem in
pneumatic precision metering device. A novel design of a soybean precision metering …

In view of the differences of the physical and mechanical properties between rapeseed and
wheat seed, a dual-purpose pneumatic precision metering device within the internal guiding …

Under the narrow-row-dense planting mode of beans, it is difficult to achieve high-speed
precision seeding. However, a pneumatic precision seed-metering device with single seed …

Precision seed metering mechanism is the core component of field breeding planter, in
order to measure the performance, the quadratic regression orthogonal rotating design was …

Mechanical precision seed-metering device has low price, compact structure, good
manufacturability and other advantages. However, in recent years, the pneumatic precision …

Pneumatic metering device has been increasingly widespread for the advantages of high
planting quality, low seed-injuring rate, strong adaptability to seeds and higher planting …

The objective of this study was to apply the precision metering on wheat seeding to
overcome seed damage, seed loss and non-uniform distribution. Accordingly, a prototype of …