The invention provides a secondary emergency protection device based on an electromagnetic crane. Comprising a device body, and a multifunctional display screen, a switch and an audible and visual alarm are arranged on the front face of the device body; a power switch, an electromagnetic hoist input interface, a charging interface and an electromagnetic hoist output quick plug are arranged on the side surface; an internal circuit is arranged in the device body and comprises a reel power supply, a direct-current power supply, a rectifier bridge, a first fuse, a battery pack, a second fuse, a first direct-current power supply DC, a second direct-current power supply DC, a voltmeter, a first solid-state relay, a diverter, a PLC, a quick-plug positive electrode, a quick-plug negative electrode, a key switch, an acousto-optic buzzer, an electric quantity display and a second solid-state relay. When a magnetic head of the electromagnetic hoist is powered off due to other fault reasons, the PLC detects the power failure and can intervene instantly, it is guaranteed that the electromagnetic hoist does not lose magnetism and a hoisted object does not fall off, the audible and visual alarm warns constructors at the first time, and the constructors have 10 minutes to place the hoisted object in a safe area.
本发明提出的是一种基于电磁吊二次应急保护装置。包括装置本体,在装置本体正面设置有多功能显示屏、开关和声光报警器;侧面设置有电源开关、电磁吊输入接口、充电接口和电磁吊输出快插;在装置本体内部设置有内部电路,内部电路包括卷筒来电、直流电源、整流桥、第一保险、电池组、第二保险、第一直流电源DC、第二直流电源DC、电压表、第一固态继电器、分流器、PLC、快插正负极、钥匙开关、声光蜂鸣器、电量显示和第二固态继电器;当电磁吊的磁头因其他故障原因导致断电后,通过PLC检测到并能在瞬间介入,保证电磁吊不失去磁性且吊装物不会坠落,声光报警器第一时间警示施工人员,施工人员拥有10分钟的时间将吊运物放置在安全区域。
Secondary emergency protection device based on electromagnetic crane
一种基于电磁吊二次应急保护装置
11.03.2025
Patent
Elektronische Ressource
Chinesisch
IPC: | B66C Krane , CRANES |
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