Over-unwinding prevention device for steel wire rope of hydraulic winch

The utility model relates to the technical field of hydraulic winches, and discloses a steel wire rope over-unwinding prevention device of a hydraulic winch, which comprises two supports, a steel wire rope winding drum is rotatably connected between the opposite sides of the two supports, and a steel wire rope is wound on the outer side of the steel wire rope winding drum. A quick dismounting and mounting mechanism for conveniently dismounting and mounting the steel wire rope over-releasing prevention device main body is mounted at the top of the right side of the bracket on the left side, and the steel wire rope over-releasing prevention device main body for timely disconnecting a hydraulic loop in a crane and stopping releasing the steel wire rope is mounted at the bottom of the quick dismounting and mounting mechanism. According to the steel wire rope over-releasing prevention device of the hydraulic winch, the function that the steel wire rope over-releasing prevention device body can be conveniently and