Anti-channeling auxiliary device for motor rotor of roughing mill

An anti-channeling auxiliary device for a motor rotor of a roughing mill is installed at the outer side end of the motor rotor of the roughing mill and comprises the motor rotor, a tile seat, a tile cover, a mandrel, a bearing assembly, a support and a fixing frame, the support is connected with the bearing assembly and fixed to the fixing frame, and the fixing frame is fixed to the box closing portion of the tile cover and the tile seat. The bearing assembly comprises thrust bearings, end covers, an outer sleeve, an inner sleeve and a spring assembly, the mandrel is of a hollow structure, the inner side end of the mandrel is fixedly connected with a motor rotor, the mandrel is sleeved with the inner sleeve, the pair of thrust bearings is assembled on the inner sleeve, the two end covers are symmetrically installed at the two ends of the pair of thrust bearings, the thrust bearings are sleeved with the outer sleeve, and the end covers and the outer sleeve are fixedly connected through screws. Stepped holes ar