The invention discloses a tower crane system and a tower crane rotation vortex flow controller. The tower crane rotation vortex flow controller comprises a mains supply circuit and a storage battery power supply circuit which are connected between a power grid and a vortex coil in parallel, wherein the storage battery power supply circuit comprises a transformer, a rectification and filtration circuit, a charging circuit, a storage battery, a first relay and a relay control circuit; the transformer, the rectification and filtration circuit, the charging circuit, the storage battery and the first relay are sequentially connected between the power grid and the vortex coil one by one, and the relay control circuit is connected with the control end of the first relay and used for controlling closing of a normally-open contact of the first relay when the power grid loses power or breaks down suddenly so as to guarantee that a tower crane can brake normally on the condition that the power grid loses power or breaks down suddenly.
Tower crane system and tower crane rotation vortex flow controller
2015-04-22
Patent
Electronic Resource
English
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