充填式液压支架受力分析及运动学仿真分析

Stress analysis and kinematics simulation analysis of filling hydraulic support

现有的充填式液压支架一般是通过加大安全系数来对支架各部分结构进行设计,因此造成了液压支架整体结构重量大、成本高、井下支护操作时效率低下。通过建立液压支架工作时的受力模型,对液压支架各主要部件在工作时的受力情况进行分析,并对其运动学情况进行研究。结果表明,充填式液压支架工作时,作用在前排和后排支柱上的载荷为作用在中间支柱上载荷的4倍以上,为优化填充液压支架的结构、提高液压支架工作的可靠性提供理论依据。

The existing filling hydraulic supports were generally designed by increasing the safety factor of the each structure of the support, thus resulting in a large overall weight of the hydraulic support, high cost, and low efficiency in the operation of the underground support. By establishing the force model when the hydraulic support was working, the stress of the main components of the hydraulic support during operation was analyzed, and the kinematics was studied. The results showed that the load acting on the front and rear pillars of the filling hydraulic support was more than 4 times of the load acting on the middle pillar, which provided a theoretical basis for optimizing the structure of the hydraulic support and improving the reliability of the hydraulic support.