Automobile main shaft rotation fatigue test bench

The utility model provides an automobile main shaft rotation fatigue test bench comprising a transmission unit, a loading unit, a load output unit and a support unit. The transmission unit, the loading unit and the load output unit are arranged on the supporting unit, the transmission unit is linked with the loading unit, the loading unit drives a test workpiece to rotate, and the load output unit applies a load to the loading unit. According to the utility model, the transmission unit, the loading unit and the load output unit are arranged, so that the test workpiece rotates under the action of the transmission unit and bears external force under the action of the loading unit and the load output unit at the same time, and the fatigue detection test of the rotating speed and the force is synchronously carried out. 本实用新型提供一种汽车主轴旋转疲劳试验台，包括，传动单元、加载单元、载荷输出单元和支撑单元；所述传动单元、所述加载单元和所述载荷输出单元设置于所述支撑单元上，所述传动单元与所述加载单元联动，所述加载单元带动测试工件转动，所述载荷输出单元对所述加载单元施加载荷。本实用新型通过设置传动单元、加载单元和载荷输出单元，使测试工件在传动单元的作用下旋转的同时，在加载单元和载荷输出单元作用下承受外力，以