Winding drum device of crane

The utility model provides a crane roller device, and belongs to the technical field of cranes. The crane roller device comprises a bottom plate, a first supporting plate, a winding reel, a second supporting plate, a reciprocating lead screw, a moving block, a pressing frame, a first pressing guide wheel, an adjusting groove, an adjusting block, a second pressing guide wheel, a spring, a cover plate, a threaded rod and a steel wire rope. The two ends of the spring are connected with the adjusting block and the pressing frame correspondingly so that the pressing frame can support the adjusting block through the spring, and therefore when the threaded rod is separated from the adjusting block, the spring resets and drives the adjusting block and the second pressing guide wheel to move in the direction away from the first pressing guide wheel; the distance between the second pressing guide wheel and the first pressing guide wheel is increased, so that the steel wire rope can conveniently penetrate through the sp