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振动慢剪挤压破碎机是一种超细破碎设备,矿石进入破碎腔内,由镶嵌衬板内锥的正弦振动和外锥转动组成剪切、挤压复合破碎。简化破碎机系统,着重考虑内锥的运动,利用Lagrange方程建立系统6自由度运动数学模型。基于该运动数学模型在动力学软件ADAMS中建立破碎机参数化模型,利用ADAMS/vibration与离散元软件EDEM耦合进行数值模拟。研究了破碎机系统模态特性和外加激振频率对破碎机破碎力及破碎效果的影响。结果表明,破碎机系统模态为8阶时,模态振型对破碎过程最有利;当外加激振频率为75Hz时,振动慢剪挤压破碎机的破碎力获得极大提高,矿石破碎速率提升,矿石粒度更细。
Vibration Slow shear Extrusion crusher is a kind of ultra-fine crushing equipment, the ore into the crushing cavity, by the lining of the cone cone sine vibration and outer cone rotation shear, extrusion compound broken. Simplify the crusher system, focusing on the cone movement, the use of Lagrange equations to establish the system 6 degrees of freedom mathematical model of motion. Based on the mathematical model of motion, a parametric model of crusher is established in the dynamic software ADAMS, and the numerical simulation is carried out by using EDEM coupling between ADAMS / vibration and discrete element software. The influence of modal characteristics and external excitation frequency of crusher system on crushing force and crushing effect of crusher was studied. The results show that the modal shape is the most favorable for the crushing process when the system mode of the crusher is 8th order. When the external excitation frequency is 75Hz, the crushing force of the vibrating slow shear crusher is greatly increased. The crushing rate Upgrade, finer ore size.