Rebounding device, tread brake testing equipment and tread brake testing method

The invention relates to the field of brake testing, and particularly discloses a springback device, tread brake testing equipment and a tread brake testing method.The springback device comprises a fixed base and a sliding base located on one side of the fixed base in the X-axis direction, the sliding base is slidably connected to the fixed base in the Z-axis direction, and the springback device further comprises a connecting rod and an elastic assembly; the connecting rod comprises a first rod body and a second rod body which are connected, the first rod body is rotationally connected to the sliding base, the side, facing the sliding base, of the second rod body is provided with an abutting face obliquely extending relative to the Z-axis direction, an abutting piece is arranged on the fixed base, and the elastic assembly is arranged between one of the fixed base and the sliding base and the second rod body. And an elastic force is applied along the X-axis direction to keep the contact between the abutting su