Crown block pulley bracket

The utility model discloses a crown block pulley bracket of a drilling machine, which is applied to exploration and development activities of oil and other resources. The bracket comprises holders, supporting frames, a connecting beam, an upper frame and a lifting tackle, wherein the holders are welded to a crown block frame; the supporting frames are connected with the holders through pin shafts; the connecting beam is connected with the two supporting frames through the pin shafts; an opening is formed in one side of each supporting frame; the upper frame is connected with the supporting frames through bolts and nuts; a rolling device is mounted on the upper frame; the lifting tackle can roll forwards and backwards on the upper frame. The supporting frames, the connecting beam and the upper frame of the crown block pulley bracket together form a framework of the pulley bracket, thus the pulley bracket is stable in structure and can be used for bearing the weight of all pulleys, pulley shafts, bearings and p