At present, most of small grain crops such as millet and forage seeds are sown by external force feed in mainland China, which has some problems of wasting seeds, uneven seed distribution and so on. Therefore, it is needed to design a precise feed device for small grain corps. The author’s of this paper established a three-dimensional model to design the spiral groove precision seed-metering de...

In order to solve problems of lower seed-filling stability and wheat seed damage mechanical shooting seed-metering device, the filling structure device was optimized. The effects movement were obtained through analysing kinematics dynamics distributor. influence factors inner diameter distributor, rotational speed distributor inclination angle window. discrete element software (DEM) used simula...

On the basis of discrete element method (DEM), movement seed particles during filling process a wheat hole-wheel variable seed-metering device was numerically simulated. The impact various model hole structures, postures, and vibration frequencies on performance investigated. results demonstrated that average speed posture seeds varied significantly between models. research planter’s effect gre...

A secondary seeding precision double-seed peanut hole seed metering device was designed to improve the performance of planting equipment and provide a solution for problems on high charge that can cause poor cavitation uniformity easily. The main structure operation parameters in terms groove length, height, seed-bed belt speed, rotation speed wheel were determined through theoretical analysis....

In order to further improve the seeding performance of maize seed-metering device, a pressure-holding precision device for was designed. The is made up several seed rowing modules, which effectively solves problems inconvenient disassembly and complex maintenance current device. working principle introduced, mechanical kinematic analysis seeds during operation carried out. orthogonal test out w...

Sesame seeds are flat and oval, with poor mobility, easily blocking a seed tube reducing seeding quality. An air-assisted seed-guiding device was designed for hill-seeding centralized seed-metering sesame. The core of the is distribution manifold that could restrict trajectory make move in same direction as airflow. Six-factor three-level orthogonal tests were carried out using CFD–DEM coupling...