论文部分内容阅读
汽机房起重机,在电厂中主要用于发电机定子、转子的安装维修。起升机构的电机、高速侧运行制动器安装在高速轴上,卷筒、低速侧安全制动器安装在低速轴上,高速轴和低速轴通过减速器连接在一起。正常运行时,由高速侧运行制动器动作来控制起升机构的制动,只有在起升机构出现故障(在起重机卷筒发生超速运行,重物下坠,发生溜钩现象)时,低速侧安全制动器才动作,确保发电机定转子在起重机起升机构出现故障时可靠制动,保证其不会出现重大损失。
Steam engine room crane, mainly used in power plant stator and rotor installation and maintenance. The hoisting mechanism motor, the high-speed side running brake is mounted on the high speed shaft, the drum, the low speed side safety brake is mounted on the low speed shaft, and the high speed shaft and the low speed shaft are connected by the decelerator. During normal operation, the brake of the hoisting mechanism is controlled by the operation of the brake on the high speed side. Only when the hoisting mechanism malfunctions (the crane reel overspeeds, the heavy object falls, and the hooking phenomenon occurs), the low-speed side safety brake Only action, to ensure that the generator stator and rotor in the lifting mechanism failure, reliable braking, to ensure that it will not be a significant loss.