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惯性振动破碎机设计依靠自身的振动自同步特性实现转子同步转动,为讨论其同步特性,建立了设备运行的微分方程,在一阶近似条件下得到系统的同步性与稳定性条件。理论分析可知,系统的转子自同步是振动力矩与转子驱动力矩共同作用的结果;对振动力矩产生影响的参数,也会对系统的自同步性能产生影响;提高转子的惯性矩与转速,则系统的振动力矩变大,其同步的稳定性也更好。然而利用平均积分法分析系统的自同步性能,不能从理论上得到扭转弹簧刚度大小对系统自同步性能的影响,实际上,振动力矩依靠动颚的摆动平衡2个转子的能量输入,扭转弹簧刚度大小影响系统的自同步性能,仍需要进一步研究。
The design of inertial vibration crusher relies on its own vibration self-synchronization characteristics to achieve synchronous rotor rotation. To discuss its synchronization characteristics, a differential equation of equipment operation is established. Under the first-order approximation, the synchronization and stability conditions of the system are obtained. The theoretical analysis shows that the rotor self-synchronization of the system is the result of the interaction between the vibration torque and the rotor driving torque. The parameters that affect the vibration torque also affect the self-synchronization of the system. When the rotor’s moment of inertia and speed are increased, the system The vibration torque becomes larger, and its synchronization is also better. However, using the average integral method to analyze the self-synchronization performance of the system, the influence of the torsional spring stiffness on the self-synchronization performance of the system can not be theoretically obtained. In fact, the vibration torque balances the energy input of the two rotors by the swing of the moving jaw, Size affect the system’s self-synchronization performance, still need further study.