立井提升系统在井口解除二级制动时的动力学特性分析

摘要

This paper establishes the dynamic model of the hoist of vertical shaft when it’ s stuck,studies the dy-namic characteristics of hoisting conveyance of vertical shaft,provides the calculation methods of the impact force of hoist-ing ropes when the hoist is suddenly stopped or stuck,analyzes the method for limiting the system vibration,internal rela-tions of extreme accelerations,maximum acceleration value and the sliding performance of the hoisting system when the fric-tion drive fails,and studies the characteristics of the dynamic impact on the hoisting system when the wellhead relieves the two-stage braking.%建立了立井提升机卡住时的动力学模型，研究了立井提升容器的动力学特性，给出了提升机急停或卡住时提升钢丝绳的冲击力计算方法，分析了限制系统振动的方法、极限加速度的内在关系、最大加速度数值及摩擦传动失效后提升系统的滑动特性，研究了在井口解除二级制动后对提升系统的动力冲击特性。