Loading bin for filling ball mill with grinding medium

The utility model discloses a loading bin for filling a grinding medium in a ball mill, which comprises a bin body, a feed port arranged on one side of the bin body and a discharge port arranged on the other side of the bin body, the lower part of the bin body is connected with a threaded pipe through a sliding chute in a sliding manner, and balls are embedded at the top end of the threaded pipe and are in contact with the sliding chute for reducing the friction force and improving the durability. The threaded pipe is in threaded connection with a lead screw, a base is arranged at the bottom end of the lead screw, the bottom end of the lead screw is rotationally connected into the base, a bearing is arranged in the base and connected with the base, a transmission box is arranged above the base, and supporting legs are arranged at the bottom of the transmission box and make contact with the ground to play a supporting role. The utility model solves the technical problem that the height of the charging bin fill