The invention relates to a ship unloader indoor travelling crane cart operation safety device which comprises a pulse incremental encoder, a magnetic switch assembly, an ultrasonic ranging sensor, a proximity switch, an audible and visual alarm, a PLC device, an indicator light and a frequency converter. Signals of the encoder are fed back to the frequency converter, and the frequency converter is connected with PLC equipment in a crane equipment travelling electrical room to realize closed-loop control of the rotating speed and the position; the magnetic switch assembly is used for synchronous setting of the crane and cart and precision deviation verification of the cart position, the requirement of the indoor crane and cart safe operation control technology of multiple cranes and multiple port cranes can be conveniently met, site equipment configuration is reduced, and the convenient requirement for site equipment maintenance can be effectively met.
本发明涉及一种卸船机室内行车大车运行安全装置,所述安全装置包括脉冲增量编码器、磁性开关组件、超声波测距传感器、接近开关、声光报警器、PLC设备、指示灯以及变频器,所述脉冲增量编码器安装于大车电机输出轴上,编码器信号反馈给变频器,变频器与起重机设备行车电气室内部的PLC设备相连接,实现转速与位置闭环控制;磁性开关组件用于行车大车的同步设置与大车位置的精度偏差校验,该方案能很方便地实现多台起重机及多个港口起重机室内行车大车安全运行控制工艺的需要,减少现场设备配置,可有效满足现场对设备维护的便捷需求。
Indoor crane cart running safety device of ship unloader
一种卸船机室内行车大车运行安全装置
31.03.2023
Patent
Elektronische Ressource
Chinesisch
IPC: | B66C Krane , CRANES |
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