Crane counterweight device capable of quickly and automatically loading and unloading

A crane counterweight device capable of being quickly and automatically loaded and unloaded comprises a counterweight frame, and two hoisting holes are formed in the upper side of the counterweight frame; two first mounting holes are formed in the right side of the counterweight frame, and a counterweight frame hydraulic pipeline joint is arranged between the two first mounting holes; a supporting oil cylinder is arranged at the bottom of the counter weight frame, and a counter weight block is further installed on the supporting oil cylinder. Supporting columns are further arranged at the bottom of the counterweight frame, and the supporting columns and the counterweight frame are assembled and disassembled through installation bolts. Due to the design, the counterweight device can be mounted and dismounted only by the crane, auxiliary tools and other vehicles are not needed, the invalid operation time and the operation cost are reduced, and the working efficiency is improved. The problem that a traditional c