The invention relates to a novel high-voltage-resistant building crane capable of being encrypted, which mainly comprises a vertical support frame, a horizontal support frame, a moving body, a lifting rope, a lifting hook, metal semi-rings, a circuit, a rectifier bridge system, a triode amplifying system, an electromagnetic relay system, an electric system, an operating room, a rain-proof shield, a sensor, an AVR singlechip, a ZigBee module and a toggle switch. Thebuilding crane provided by the invention can effectively prevent an operator from an electric shock when the operator works nearby a high-voltage cable. Whenthe horizontal support frame of the building crane is adjacent to the high-voltage cable, magnetic flux in the metal semi-rings changes to generate an induced current, signals of the induced current are firstly transmitted to the rectifier bridge system, then transmitted to the triode amplifying system and finally transmitted to the electromagnetic relay system, and at the moment, a contact in the electromagnetic relay system acts to stop the electric system from working so as to protect the safety of the operator eventually. Thebuilding crane is simple to operate and easy topopularize and can realize automatic detection and control.
Novel high-voltage-resistant building crane capable of being encrypted
2015-05-20
Patent
Elektronische Ressource
Englisch
IPC: | B66C Krane , CRANES |
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