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二级制动就是将某一提升机所需要的全部制动力矩,分成二级延时制动,以减少停车时因惯性引起的冲击。第一级制动力矩,使提升系统产生符合煤矿安全规程规定的减速度。以确保整个提升系统平稳、可靠减速。然后经过延一段时间第二级制动力矩全施加上去,使提升机系统安全地处于静止状态。对矿井提升机液压制动系统整定公式计算表明,在一般情况下,油压值允许有一定的整定区间,而不是以往常用的特定值。将使设计、调试与日常维护工作简便易行。
Second-level braking is to lift all the necessary braking torque, divided into two delay braking to reduce the impact of inertia caused by parking. The first stage of braking torque, so that the lifting system to produce coal mine safety regulations in line with the provisions of the deceleration. To ensure that the entire lifting system smooth, reliable deceleration. Then after a period of time the second stage braking torque is applied, so that the hoist system is safely at a standstill. The calculation formula of the hydraulic braking system of the mine hoist shows that under normal circumstances, the hydraulic pressure value allows a certain setting range instead of the specific value commonly used in the past. Will make design, commissioning and routine maintenance easy.