绳索救援中滑轮拖拉系统的效率分析

Efficiency Analysis on Pulley Hauling of Rope Rescue Sys­tem

从滑轮角度出发,阐述滑轮拖拉系统的构成和类型,提出省力比在实际和理想情况下的区别,应用数学方法,通过对比分析滑轮拖拉系统效率的影响因素,得出利用滑轮的效率、数量、顺序、摩擦和拖拉角度等提高拖拉效率的结论,以此发挥滑轮拖拉系统的最大省力效能,为消防救援队伍及其他专业救援力量在绳索救援或训练中优化滑轮拖拉系统应用提供参考。

This paper bases on the pulley,and illustrates the composition and type of the pulley hauling system,and puts forward the difference between the actual and ideal conditions of labor-saving ratio.Using mathematical methods,by comparing and analyzing the factors affecting the efficiency of the pulley hauling system,the efficiency of the pulley,The number,sequence,friction,and hauling angle have improved the efficiency of the hauling,so as to give full play to the effectiveness of the pulley hauling system,and provide reference for fire rescue teams and other professional rescue forces to optimize the application of the pulley hauling system in rope rescue.