Simulation test bed for online monitoring of sudden change of rock breaking working condition of TBM hob

The invention relates to a TBM hob rock breaking working condition mutation on-line monitoring simulation test bed which comprises a test bed base plate, a driving device, a main shaft, a movable rigidity support, a TBM hob rock breaking simulation assembly and a load device, and the driving device, the movable rigidity support, the TBM hob rock breaking simulation assembly and the load device are sequentially installed on the test bed base plate. According to the invention, the cutting test of the TBM hob can be realized at the same time, and the tapered roller bearing in the TBM hob can be monitored in real time. The test bed can simulate various working conditions, experimental data are closer to actual working conditions, simulation of the actual working conditions is more real, and operation is easy. Complex working conditions in practical application are considered, different parameters are adjusted to adapt to different working conditions, and experimental data are more persuasive. 本发明涉及一种TBM滚刀破岩工况突变在线