冲击载荷下液压支架的力的传递特性分析

Analysis of Force Transfer Characteristics of Hydraulic Support under Impact Load

液压支架在支护作业中受到巷道顶部矿层压力以及煤矸石等掉落时的冲击力,对液压支架造成了较大的冲击,导致液压支架结构受到破坏,严重影响了煤矿井下的综采安全。因此利用ADAMS仿真分析软件建立了液压支架的动力学模型,主要针对液压支架在受到冲击载荷后力在支架内的传递特性进行分析,结果表明:冲击载荷作用在液压支架的不同位置对各连接位置的力的传递特性影响不同,该分析结果为后续液压支架的优化设计提供了理论依据。

The hydraulic support is impacted by the rock pressure on the top of the roadway and the coal gangue in the supporting operation,which causes a great impact on the hydraulic support and results in the destruction of the structure of the hydraulic support,and the structure of the hydraulic support is damaged by the impact force of the coal gangue and so on.The safety of fully mechanized coal mining under coal mine is seriously affected.Therefore,the dynamic model of the hydraulic support is established by using ADAMS simulation analysis software,which mainly analyzes the transmission characteristics of the force in the support after the impact load on the hydraulic support.The results show that the influence of impact load in different positions of hydraulic support on the transfer characteristics of forces at each connection position is different.The results of this analysis provide a basis for the optimal design of the subsequent hydraulic support.