Buffering and energy-absorbing protection device for flexible rotor

The invention provides a flexible rotor buffering and energy-absorbing protection device, relates to the technical field of flexible rotors, and solves the problem that when the bending critical rotating speed of a flexible rotor is relatively high, severe collision possibly occurs to cause damage to a machine. The flexible rotor buffering and energy-absorbing protection device comprises an annular base which sleeves the flexible rotor and is arranged on the inner wall of a shell of the flexible rotor; the buffer energy absorption elements are mounted on the base; and the base and the plurality of buffer energy-absorbing elements correspond to the position with the maximum deflection when the flexible rotor passes through a critical rotating speed area. According to the scheme, the collision buffering effect can be provided for the flexible rotor, the vibration energy of the flexible rotor is absorbed, and it is guaranteed that the flexible rotor safely passes through the bending critical rotating speed. 本发明提