The invention relates to a nuclear power station gate crane with load jamming protection and top rushing protection. The nuclear power station gate crane comprises a motor, a moment limiter, a brake disc coupler, a speed reducer, a hand-cranking mechanism, a working brake, a safety brake, a winding drum set, a pulley system, a lifting hook set, a trolley frame and an electric control system. The output end of the motor is connected with one end of a speed reducer high-speed shaft sequentially through a moment limiter and a brake disc coupling; a hand mechanism connecting shaft is reserved at the other end of the speed reducer high-speed shaft; the low-speed shaft end of the speed reducer is connected with the winding drum group; the winding drum group, the pulley system and the lifting hook group form a steel wire rope winding system; the working brake is mounted on the brake disc coupling; the safety brake is installed on one side of the winding drum set. The trolley frame is used for bearing all the components; the electric control system is arranged on one side of the upper surface of the trolley frame. When an accident occurs, it can be guaranteed that a transmission chain of the lifting mechanism is not damaged, and the gate can be opened and closed through the hand-cranking mechanism in the accident state.
本发明涉及一种带载荷卡阻保护和冲顶保护的核电站闸门吊,包括电动机、力矩限制器、制动盘联轴器、减速器、手摇机构、工作制动器、安全制动器、卷筒组、滑轮系统、吊钩组、小车架和电控系统;电动机输出端依次通过力矩限制器和制动盘联轴器与减速器高速轴一端连接;减速器高速轴另一端预留手摇机构连接轴;减速器低速轴端与卷筒组连接,卷筒组、滑轮系统和吊钩组组成钢丝绳缠绕系统;工作制动器安装在制动盘连轴器上;所述安全制动器安装在卷筒组的一侧;小车架用于承载上述各部件;电控系统设置在小车架上表面一侧。本发明能够在发生事故时,保证起升机构的传动链不被损坏,使闸门能够在事故状态中通过手摇机构实现开闭。
Nuclear power station gate crane with load jamming protection and top rushing protection
一种带载荷卡阻保护和冲顶保护的核电站闸门吊
2024-01-12
Patent
Electronic Resource
Chinese
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