论文部分内容阅读
斜井提升机上提紧急制动引起的断绳事故往往是因制动力矩调整不当造成的。在提升机减速度 a_(S0)大于提升容器沿斜坡上行的自然减速度 a_c 的条件下,先造成提升钢丝绳松绳,当提升容器停止上行后又在重力作用下产生反向下滑力而造成钢丝绳冲击断绳。提升机上提紧急制动时,提升系统的运动状态是:在安全闸空行程时间内,整个提升系统按自由滑行减速度 a_s 运行:
Inclined shaft hoist emergency braking caused by breaking the rope is often caused due to improper adjustment of the braking torque. Under the condition that the hoist deceleration a_ (S0) is greater than the natural deceleration a_c of lifting the vessel up the slope, the hoisting rope is firstly caused to be loosened. When the hoisting vessel stops upward and then the reverse sliding force is generated under the action of gravity, the rope Impact broken rope. Hoist lift emergency brake, the system to enhance the state of motion is: in the safety gate empty travel time, the entire lifting system according to the free gliding deceleration a_s operation: