提出了一种采用四振动电机自同步激振的大型振动筛。通过利用四电机驱动的自同步振动筛简化模型建立自同步振动力学模型,运用 Hamilton 原理,建立了该振动筛系统的自同步条件和同步稳定性判据。研究表明,该四电机驱动自同步振动筛系统,在满足自同步条件和稳定运转条件时可以实现同步且稳定运转,为该类产品提供理论依据,具有工程应用价值。 A large-scale vibrating screen using self-synchronizing excitation of four-vibration motor is proposed. A self-synchronous vibration mechanics model was established by using a four-motor-driven self-synchronized vibrating screen. The Hamiltonian principle was used to establish the self-synchronization condition and the criterion of synchronization stability. The research shows that the four-motor driven self-synchronized vibrating screen system can achieve synchronous and stable operation under the conditions of self-synchronization and steady operation, and provide theoretical basis for such products and have engineering application value.