Transmission shaft composite test device and test method

The invention discloses a transmission shaft composite test device and method, and belongs to the technical field of loader transmission shaft test.The test device comprises a first loading unit, a first gearbox, a second gearbox, a steering loading unit, a first driving unit and a control unit, and the first loading unit is used for applying load to a tested transmission shaft; the steering loading unit is used for simulating loading of torque and rotating speed of the tested transmission shaft at different mounting angles, different steering angles and different steering frequencies; and the control unit interacts and processes torque, rotating speed, frequency and rotating angle signals with the first driving unit, the first loading unit and the steering loading unit in real time. Dynamic adjustment of test parameters such as different transmission arrangement forms, mounting angles, vibration and impact, steering angles and steering frequencies can be realized, and static torsion, dynamic reliability and