Fatigue test stand for gearbox of passenger vehicle

The invention provides a fatigue test stand for a gearbox of a passenger vehicle. A high-speed driving motor, a bearing support, a gear case, a left loading motor and a right loading motor are arranged on the testing stand, wherein the high-speed driving motor is connected with the bearing support through a high-speed transmission shaft; one side of the bearing support is provided with a mounting position of a gearbox to be detected; a first low-speed transmission shaft used for being connected with the right output of the gearbox to be detected is connected with the right loading motor; and a second low-speed transmission shaft used for being connected with the left output of the gearbox to be detected is connected with the left loading motor through the gear case and a third low-speed transmission shaft. The fatigue test stand not only can stagger the loading motor on one side of the high-speed driving motor with the high-speed driving motor, but also has the advantages of simple structure, high reliability