PROCESSES ELECTROMECHANICAL SYSTEMS VIBRATORY COMPACTING CONCRETE MIXTURES UNBALANCE EXCITER VIBRATING

Vibrational platform with two-shaft unbalance vibration exciters, applicable to production of concrete products for sealing concrete mixtures in the form. Marked major shortcomings such vibratory platforms, most of which are associ-ated with the passage of the resonance zone at start. To optimize the performance of vibrating platforms offered gap mechanical connection between the shafts of the drive motors and the use of regulated electric drive. A mathematical model of movement along the axis vibroplatform. The results of modeling movement of the vibration system, torque and speed of the drive motors, vibratory torque applied to the shaft engines for direct start. The effect of the three laws of frequency control on the vibration platform and start passing the resonance region. Determined that in order to reduce the amplitude of oscillations when passing through the resonance zone you want to control the angle of misalignment between the unbalance masses.