摘要
针对矿井提升机在紧急制动过程中存在的振动冲击及钢丝绳打滑问题,利用ANSYS和多体动力学软件RecurDyn建立落地式摩擦矿井提升机刚柔耦合动力学仿真模型,并搭建罐笼振动信号测试系统对仿真模型进行验证。在此基础上,利用仿真模型分析了恒减速紧急制动时由钢丝绳柔性特性引起的力矩传递延迟现象,并讨论载荷、制动减速度及制动曲线等提升参数对提升系统动力学特性的影响。结果表明:制动过程中系统的动负荷及制动曲线的变化率是引起提升系统产生振动冲击及打滑的重要因素;相比恒减速制动曲线和非恒减速制动曲线,提升机在制动时采用下降沿和上升沿带有斜坡的恒减速制动曲线可实现提升系统的快速平稳停车。
Aimed at the problems of vibration impact and slippage in the braking process of mine hoist, the rigid-flexible coupling dynamic simulation model of the floor-type friction hoist was established by using ANSYS and RecurDyn software, and the vibration signal test system of cage was built to verify the simulation model. The phenomenon of moment transfer delay caused by the flexible characteristics of the wire rope during constant deceleration braking was analyzed by simulation. The effects of lifting parameters such as load, braking deceleration and braking curve on the dynamic characteristics of hoisting system were discussed. The results show that the change rate of braking deceleration curve and the dynamic load in braking process are the important factors causing vibration impact and slippage of the hoisting system;Compared with the constant deceleration braking curve and the non-constant deceleration braking curve, the constant deceleration braking curve with slope on the descending edge and the ascending edge of the hoist can realize the fast and stable parking of the hoisting system.
作者
于培
赵斌
黄家海
落财秀
YU Pei;ZHAO Bin;HUANG Jiahai;LUO Caixiu(College of Mechanical and Vehicle Engineering,Taiyuan University of Technology,Taiyuan 030024,China)
出处
《太原理工大学学报》
CAS
北大核心
2019年第3期357-363,共7页
Journal of Taiyuan University of Technology
基金
国家自然科学基金资助项目(51775362)
山西省自然科学基金资助项目(201701D121007
201601D011037)
关键词
矿井提升机
恒减速制动
动力学仿真
制动曲线
mine hoist
constant deceleration braking
dynamics simulation
braking curve
