Lifting hook hydraulic electric control upper limiting system

The invention provides a lifting hook hydraulic electric control upper limiting system which comprises a mechanical part, a hydraulic system and an electric control system. The mechanical part comprises a heavy hammer and a steel wire rope lifting hook assembly, a proximity switch is arranged on the heavy hammer, a steel wire rope of the steel wire rope lifting hook assembly penetrates through theheavy hammer, and an induction block matched with the proximity switch is arranged on the steel wire rope lifting hook assembly; the hydraulic system comprises an oil tank, an oil pump, a multi-way valve bank and a winch system, the input end of the oil pump is connected to the oil tank, an oil return pipeline is arranged on the oil tank, the output end of the oil pump is connected with the multi-way valve bank, the winch system is connected with the multi-way valve bank, and the multi-way valve bank is further connected with the oil return pipeline of the oil tank; and the electric control system comprises a junctio