Device, system and method of vibration performance integration testing of transmission shaft and rear axle assembly

The present invention provides a device, system and method of vibration performance integration testing of a transmission shaft and a rear axle assembly, belonging to the field of the transmission shaft and rear axle test. The device of vibration performance integration testing of the transmission shaft and the rear axle assembly comprises a test board, and a driving device, an energy storage device, a reduction gear and a load applying-inversed device fixed on the test board. The driving device is connected with the transmission shaft to be tested; two ends of the rear axle of the rear axle assembly to be tested are connected with the energy storage device, the reduction gear and the load applying-inversed device in turn in the energy transmission direction; and the energy storage device, the reduction gear and the load applying-inversed device are symmetrically arranged by taking the rear axle as a central axis. The device of vibration performance integration testing of the transmission shaft and the rear axle assembly also comprises a plurality of torque sensors arranged at the periphery of the transmission shaft to be tested and the rear axle assembly to be tested. The device of vibration performance integration testing of a transmission shaft and a rear axle assembly is able to perform simulation of a full vehicle, and is not simply simulation of applying load to the transmission shaft or a main reducing gear, therefore the test result is more accurate and reliable, and the applicability is higher.