The invention belongs to the technical field of elevator safety tongs, and particularly relates to a power-loss trigger safety tongs which are used for stopping an elevator car or a counterweight when the elevator car is overspeed and comprise a mounting seat, and a trigger mechanism, a brake mechanism, a detection mechanism and a control system are arranged on the mounting seat. The triggering mechanism is used for triggering the braking mechanism when the elevator car overspeeds or is powered off; the braking mechanism is used for braking the elevator car or the counterweight when the elevator car is overspeed or powered off; the detection mechanism is used for detecting action and reset states of the brake mechanism; the control system is electrically connected with the trigger mechanism, the brake mechanism and the detection mechanism; the trigger spring is arranged in the electromagnet, the trigger delay time is shortened, and the whole mechanism is compact and can adapt to different hoistway environments; the stroke of the electromagnet can be reduced on the premise that the braking stroke of the limiting pin roller is not changed; quick response and effective braking of abnormal conditions such as overspeed and power failure of the elevator car are achieved, and an important guarantee is provided for safe operation of the elevator.
本发明属于电梯安全钳技术领域,具体为一种失电触发安全钳,用于在电梯轿厢超速时制停电梯轿厢或对重,包括有安装座,安装座上设置有触发机构、制动机构、检测机构和控制系统;触发机构用于在电梯轿厢超速或断电时触发制动机构;制动机构用于在电梯轿厢超速或断电时制停电梯轿厢或对重;检测机构用于检测制动机构的动作、复位状态;控制系统与触发机构、制动机构和检测机构电性连接;触发弹簧内置于电磁铁,缩短触发延时时间,整体机构紧凑,能够适应不同井道环境;在保证限位滚柱制动行程不变的前提下能够降低电磁铁的行程;实现了对电梯轿厢超速和断电等异常情况的快速响应和有效制停,为电梯的安全运行提供了重要的保障。
Power-loss trigger safety tongs
一种失电触发安全钳
2024-05-28
Patent
Electronic Resource
Chinese
IPC: | B66B Aufzüge , ELEVATORS |