矿用提升机恒减速制动特性研究

摘要

Mine hoist is the key equipment to connect underground to ground,and its safe operation directly concerns the lives of coal miners.At present,the constant deceleration braking system is mainly adopted to improve the braking performance of mine host and the security.So the constant deceleration barking system is studied by the simulation software SimulationX.Firstly,the simulation model parameters of servo proportional flow valve in the constant deceleration braking system are identified through empirical data,and the accuracy of the wire rope model is analyzed.On this basis,the 3D co-simulation model of constant deceleration braking system is built and the accuracy of the simulation model is verified by the test data.Then the integral separation PID control algorithm helps to improve the performance at the beginning of braking.The results show that the simulation model is correct,and the integral separation PID control algorithm can improve the speed control precision at the beginning of braking.%矿井提升机是联系井下与地面的关键设备,其安全运行直接关乎煤矿工人的生命安全.目前主要通过恒减速制动系统改善提升机制动性能,从而提高安全性,为此利用仿真软件SimulationX对矿井提升机的恒减速制动特性进行研究.通过试验数据对恒减速制动系统中的伺服比例阀的仿真模型参数进行辨识,对钢丝绳模型的准确性进行分析,在此基础上建立恒减速制动系统三维联合仿真模型,通过试验数据对仿真模型的准确性进行验证;通过积分分离PID控制算法改善制动初期的性能.研究结果表明该仿真模型是准确的,同时积分分离PID控制算法提高了制动初期的速度控制精度.