Counterweight hanging device and crane

The utility model relates to a counterweight hanging device and a crane. The counterweight hanging device comprises a counterweight bottom plate, a counterweight bracket and a counterweight oil cylinder, wherein a counterweight is arranged on the counterweight bottom plate; the counterweight bracket is arranged on the counterweight bottom plate and is in hanging connection with a rotary table of the crane; the counterweight oil cylinder is arranged on the counterweight bottom plate; one end of the counterweight oil cylinder is connected with the counterweight bottom plate, and the other end of the counterweight oil cylinder is connected with the counterweight bracket; the counterweight oil cylinder is used for jacking the counterweight bracket. According to the counterweight hanging device and the crane, the counterweight can be hung by hanging the counterweight bracket, and the height of the counterweight is not limited by the distance between the tail of the rotary table of the crane and a chassis of the crane; the counterweight bracket is jacked by the counterweight oil cylinder, the counterweight bracket is in hanging connection with the rotary table of the crane, and the counterweight is not needed to be jacked, so that the hanging efficiency is high, the jacking weight of the counterweight oil cylinder is light, and the stability is high.