The Optimization Design And Dynamic Simulation Of Inertial Feeder With Horizontal Vibration

The inertial feeder with horizontal vibration is a kind of equipment which feeds materiel by using vibration theory and it generates excitation force through vibration exciter, which has a pair of low speed axes with equal revolving speed but opposite revolving direction and also has a pair of high speed axes with equal revolving speed but opposite revolving direction. It generates a horizontal excitation force whose forward and backward value is asymmetrical about the balance place. Therefore, the feeder's forward and backward acceleration is also asymmetrical about the balance place. When materiel's acceleration isn't equal to feeder's acceleration, the relative slide of materiel to trough body occurs. The excitation force in vertical direction is counteracted each other. Therefore, the feeder doesn't generate vibration in vertical direction and the displacement is zero. To improve producing efficiency, the feeder needs to select appropriate kinematics and dynamics parameters, so that the material's average speed is as big as possible. The relative sliding distance of materiel to trough body is sequentially increased. Thereby, the design of the vibration exciter is the key of feeder's design, which includes mass and mass'center position of each eccentric block, rotating direction and rotating speed of each axis and so on.The main work what this text does has five aspects. The first is to build integral structure's model of inertial feeder with horizontal vibration, analyze force of economy, trough body, and material, study feeder's vibration principle and educe motion equation of trough body. The second is to analyze relative motion manner of material to trough body, make certain starting and stopping condition of each manner, and gain material's motion equation. The third is to probe into basic idea of particle swarm optimization, set algorithmic parameters, and compile algorithmic MATLAB program. The fourth is to make use of MATLAB program of particle swarm optimization to optimize feeder's kinematics and dynamics parameters which affect material's average speed, and separately discuss affection of parameters to material's average speed. The parameters mainly include swing, rotating speed, frequency ratio, initial angle of phase difference and friction coefficient. The last is to build virtual prototype model by using ADAMS software, set correlation parameter and process dynamic simulation.Through analyzing the motion characteristic of trough body and material, we can find that the result of optimizing by using particle swarm optimization's MATLAB program is uniform to the result of simulating through virtual prototype model built with ADAMS software. The kinematics and dynamics parameters of horizontal vibrating feeder were optimized. The material's average speed had obvious increasing. The producing efficiency also gained larger advance. The research work of this text doing laid a theoretical foundation of design research for the feeder.