Abstract: Aiming at the calculation difficulty problem of the material transportation speed under the dry friction drive in the material slippage theory, and through analyzing the material movement process of the non-harmonic horizontally vibrated conveyer (here in after referred to as the conveyer)based on the material slippage theory, the discriminate condition of the motion state of the material relative to the conveyer under the dry friction and the transformational discriminate condition among each state are improved on the basis of sectionally establishing and solving the dynamic differential equation of the conveyer and the material, and then the numerical simulation and the experimental research are finished based on the Matlab software. The result shows that the dissymmetry of the conveyer speed or the acceleration makes the dry friction force that is driving the material movement asymmetric, the dissymmetry of the trough speed or acceleration makes the coulomb friction that is driving the material movement, which will make the material movement asymmetric and give rise to the relative motion between the material and the conveyor. When the phase difference of the conveyer two eccentric masses is 90° or 270° and the frequency ratio is 2, it is very advantageous to transport materials. The materials transportation speed will increase with the frequency increase of the conveyer low-frequency shaft and along with the two eccentric mass moments’ increase, but the materials transportation speed will not increase when they increased to a certain degree. When one of the two eccentric mass moments is determined, the material transportation speed will achieve the best value if the ratio exists the best value.

Key words: Dry friction, Eccentric mass moment, Frequency ratio, Material transportation speed, Non-harmonic horizontally vibrated conveyer