Bending fatigue test device for steel wire rope

The utility model relates to a bending fatigue test device for a steel wire rope. The bending fatigue test device comprises a machine seat and a test wheel component which is arranged on the machine seat and is used for repeatedly bending the steel wire rope to be tested, wherein the test wheel component comprises a first test wheel, a second test wheel and a wrap angle adjustment rod; the wrap angle adjustment rod is arranged on the machine seat in a rotatable manner through the middle part; the first test wheel and the second test wheel are respectively arranged at two opposite ends of the wrap angle adjustment rod in a rotatable manner. The bending fatigue test device for the steel wire rope can simultaneously test the planar unidirectional bending fatigue and the planar bidirectional bending fatigue of the steel wire rope; a wrap angle of the steel wire rope on the test angles can be adjusted in a stepless manner, so that test requirements on the steel wire ropes with different diameters under different w