多绳摩擦式提升机钢丝绳动态特征及提升参数研究

Study on Dynamic Characteristics and Lifting Parameters of Wire Ropes of Multi-Rope Friction Type Hoist

  • 摘要: 为避免多绳摩擦式矿井提升机因大幅横向振动引发碰绳故障,并据此确定合理的提升参数,该文分析了恒定长度与可变长度提升钢丝绳在天轮波动所引起的周期性外部激励作用下的动力学行为,建立了相应的动力学模型并进行了实验验证,系统阐述了不同提升参数对提升钢丝绳横向振动特性的影响。结果表明:大振幅横向振动通常与提升钢丝绳自身特性及外部激励条件密切相关,当外部激励频率在危险共振频率范围内时,会激发出大幅度横向振动,从而诱发可能的绳索碰撞。研究成果可为提升系统的优化设计、安全运行和维护保养提供理论依据和技术支持。

     

    Abstract: To prevent rope collision faults caused by large lateral vibrations in multi-rope friction mine hoists and to determine appropriate hoisting parameters, this paper analyzes the dynamic behavior of hoisting wire ropes with constant length and variable length under periodic external excitation induced by fluctuations of the head sheave. Corresponding dynamic models are established and experimentally validated, and the effects of different hoisting parameters on the lateral vibration characteristics of the hoisting wire ropes are systematically investigated. The results show that large-amplitude lateral vibrations are usually closely related to the inherent characteristics of the hoisting wire ropes and the external excitation conditions. When the excitation frequency falls within the critical resonance frequency range, large lateral vibrations can be excited, thereby inducing potential rope collision. The research results provide theoretical support and technical guidance for the optimal design, safe operation, and maintenance of hoisting systems.

     

/

返回文章
返回