The invention discloses a protection system for a luffing mechanism of a gantry crane. The luffing mechanism of the gantry crane comprises a plurality of lubricating oil inlets and a lubricating oil outlet. The protection system comprises a plurality of flow sensors correspondingly used for collecting the lubricating oil flow of each lubricating oil inlet and the lubricating oil outlet, an inclination angle sensor used for acquiring the amplitude of a crane hoisting arm lever, a Hall sensor used for acquiring the current of a crane motor, and a PLC used for receiving lubricating oil flow, amplitude and current. Lubrication state detection and early warning of the luffing mechanism are achieved, and the operation state of a mechanical structure of equipment can be judged.
本发明公开了一种门座式起重机变幅机构用保护系统,门座式起重机变幅机构包括多个润滑油进口和一个润滑油出口,保护系统包括:分别用于采集各润滑油进口和润滑油出口的润滑油流量的多个流量传感器;用于采集起重机吊重臂杆的幅度的倾角传感器;用于采集起重机电机的电流的霍尔传感器;接收润滑油流量、幅度和电流的PLC。实现变幅机构润滑状态检测及预警,并能够判断设备机械结构运行状态。
Protection system for luffing mechanism of gantry crane
一种门座式起重机变幅机构用保护系统
2020-06-30
Patent
Electronic Resource
Chinese
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