论文部分内容阅读
针对应用于倾角较大工作面放顶煤支架稳定性较差、笨重等问题 ,通过分析支架所受外载荷的工况和支架本身连杆机构所存在的缺陷 ,提出侧向力是导致放顶煤支架稳定性差的主要原因之一。为了对主要结构进行强度校核 ,由力的平衡关系和变形协调关系推导出了各主要结构件所受力和力矩的计算公式
Aiming at the problems such as poor stability and heavy weight of caving support with large dip, the paper puts forward that the lateral force is caused by the external force and the defects of the connecting rod mechanism. One of the main reasons for the poor stability of coal scaffolds. In order to check the strength of the main structure, the formulas of force and moment of each main structure are derived from the balance of forces and the coordination of deformation