The application provides a
metal plate
bending fatigue test device, relates to the technical field of
bending fatigue test auxiliary, and comprises a gantry, a test device support, a test pressure applying
assembly and two bearing assemblies, the test pressure applying
assembly comprises a hydraulic push rod, a T-shaped plate, a rotary air cylinder, an adjustable pressure applying piece and a roller
assembly; the two bearing assemblies each comprise a supporting round rod, a cross rod seat and a vertical plate seat, two round rollers are arranged between the two supporting round rods, and the two ends of the two round rollers are each provided with a
ratchet wheel assembly; the technical key points are that the adjustable pressure applying piece and the roller assembly are driven by the T-shaped plate to move to the bottom through the hydraulic push rod, the adjustable pressure applying piece drives the roller assembly to rotate through the rotary air cylinder, the sample plate is supported by the supporting round rod and the round roller, pressure is applied when the roller assembly rolls at the center of the top of the sample plate, the bending angle of the sample plate is expanded,
data acquisition during subsequent sample fatigue test is facilitated, and basic requirements of
simulation working conditions are provided.