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在提升机的起动阶段,容器以加速度运行,速度由零增加至最大值,然后就保待在最大速度下运行一段时间,当重容器接近卸载位置时,开始减速,直至最终停在该位置上。因此,一次提升过程可分为加速、等速及减速等几个阶段。提升机运动学就是分别计算出加速、等速及减速运动的时间及相应的距离,这种方法是为精确计算不带等重尾绳的提升机的动力学所必须的。而大多数情况下,动力学计算是按式(1)进行的 式中 P——电动机功率,kWK——矿井阻力系数,罐笼提升取1.2,容量在20t以下的箕斗提升取1.15,容量为20~50t带滚动罐的箕斗多绳提升取1.1 Q——有效提升重量,kgH——提升高度,m
During the start-up phase of the hoist, the container runs at an accelerating speed increasing from zero to its maximum, and then waits for a period of time at maximum speed. As the heavy container approaches the unloading position, it decelerates until it eventually stops . Therefore, a promotion process can be divided into acceleration, constant speed and deceleration and other stages. Hoist kinematics is to calculate the acceleration, constant speed and deceleration of the movement time and the corresponding distance, this method is accurate for the calculation of non-equal weight tail rope hoist kinetics necessary. In most cases, the kinetic calculation is based on formula (1) where P - motor power, kWk - mine resistance factor, the cage lifting to take 1.2, the capacity below 20t skip upgrade take 1.15, the capacity of 20 ~ 50t skip with a rolling tank Multi-rope lift to take 1.1 Q - effective weight lifting, kgH - lifting height, m