Abstract: Aiming at the problem of the unclear law of the material velocity of the four shafts horizontally vibrated conveyor variation with the phase angle of the eccentric shafts of the conveyor, based on the parameters of a horizontally vibrated conveyor in a steel mill, the velocity of the body and material was theoretically derived and simulated. Firstly, the general formula of body exciting force and body velocity was derived, the body velocity corresponding to three initial phase angles was simulated, and the effect of initial phase angle on the body velocity was analyzed. Then, the effects of initial motion time, initial phase angle and angular frequency on body velocity and material velocity were studied. Finally, simulation software was used to analyze the changes of the steady-state mean velocity of the material with the phase angle of the low-speed shaft (or high-speed shaft) when the initial phase angle of high-speed shaft (or low-speed shaft) was fixed,and the relevant contents were verified by experiment. The research results indicate that after the four eccentric shafts and gear and other related parts of the conveyor are assembled, the steady-state average velocity of the material does not change with the change of the phase angle of the centroid of either eccentric shaft. When the conveyor runs stably, the steady-state average velocity of the material does not vary with the sequence of its addition into the tank. In addition, considering the optimal material velocity for a particular model, when the initial phase angle of high-speed shaft (or low-speed shaft) is different, the phase angle difference of the two shafts may also be different, it is not reasonable to simply specify a specific phase angle difference such as 3π/4, π/2 or 3π/2 that is beneficial to material transportation, but the phase angle of high and low speed eccentric shaft should be specified at the same time.
Key words: vibrating (reciprocating) conveyor; phase angle of conveyor eccentric shafts; angular frequency; four shafts; horizontal vibration; body velocity and material velocity; steady-state average velocity of materials