As the unreasonable desing of assistances for assel mills with fully floating and outlet drving was main drawback for realizing HPR,therefore assistances were impoved.The good result was obtained.

• 全浮轧制、后台传动的三辊轧管机辅助设备的不合理设计已经成为影响其实现高精度轧钢的主要障碍,对传统三辊轧管机的辅助设备进行了改进,收到了良好的工业使用效果。