摘要
Abstract
The paper introduces a passive safety braking system in the lifting mechanism of cranes,without additional power or being controlled by electrical systems.When the low-speed step of the lifting mechanism (drum)exceeds the set value of the rated rotating speed,the safety brake installed in the drum will automatically start,to brake and stop the lifting mechanism in time,performing the safety braking function in case of emergency.关键词
起重机/起升机构/卷筒/非能动/安全制动器Key words
crane/lifting mechanism/drum/passive/safety braking分类
机械制造
