|
|
|
| Analysis on problem of plate biting and roll shifting in four-high rolling mill |
| WANG Tao 1，HUANG Qing-xue1，SHEN Guang-xian2，ZHENG Yong-jiang3 |
（1. College of Mechanical Engineering， Taiyuan University of Technology， Taiyuan 030024， Shanxi， China
2. National Engineering Research Center of Cold Strip Rolling Equipment and Technology， Yanshan University， Qinhuangdao 066004， Hebei， China
3. College of Mechanical Engineering， Yanshan University， Qinhuangdao 066004， Hebei， China） |
|
|
|
|
Abstract At present， the four-high rolling mills used in the hot rolling lines have the phenomenon that the work roll bites the plate and shifts along the axial， called the "plate biting and roll shifting". According to the "microscale statically determinate" design theory， the small gap between the roll bearing and the rolling mill window "about 1 mm" （with the liner wear increased） makes the roller system in indecisive state， and leads to the roll misalignment and cross. Sounder certain conditions， the phenomenon of plate biting and roll shifting will occur. The original theory of offset distance in rollers ignores the necessity of controlling tiny gap. In the current study， the method for avoiding the plate biting and roll shifting is the scientific control of the "unavoidable gap". The intelligent liner is developed to ensure the rolling mill roll parallel， stable positioning and reliable operation， eliminate the energy consumption of plate biting and roll shifting， make full use of high-grade rolling mill capacity， apply large pressure rolling new technology， produce high-strength new varieties， and achieve the upgrading of 4/6 hot/cold rolling mill and the purpose of low cost and high yield.
|
|
Received: 15 May 2017
Published: 14 November 2017
|
|
|
|
| [1] |
郜志英, 臧勇, 曾令强.轧机颤振建模及理论研究进展[J].机械工程学报, 2015, 51(16):87-105
|
| [1] |
郜志英, 臧勇, 曾令强.轧机颤振建模及理论研究进展[J].机械工程学报, 2015, 51(16):87-105
|
| [2] |
申光宪, 李明, 史荣, 等.四辊轧机辊系偏移距机理的不确定性和微尺度静定性[J].机械工程学报, 2010, 46(10):69-74
|
| [2] |
申光宪, 李明, 史荣, 等.四辊轧机辊系偏移距机理的不确定性和微尺度静定性[J].机械工程学报, 2010, 46(10):69-74
|
| [3] |
А.А.Королев.Механическое Оборудование Прокатных Цехов[M].Издательство Металлргия.1965.
|
| [3] |
А.А.Королев.Механическое Оборудование Прокатных Цехов[M].Издательство Металлргия.1965.
|
| [4] |
申光宪, 束学道, 李明.轧机微尺度理论和实际[M]. 科学出版社, 2005.
|
| [4] |
申光宪, 束学道, 李明.轧机微尺度理论和实际[M]. 科学出版社, 2005.
|
| [5] |
申光宪, 郑永江, 王小伟.微尺度静定性轧机的设计与开发[J].燕山大学学报, 2016, 40(5):377-389
|
| [5] |
申光宪, 郑永江, 王小伟.微尺度静定性轧机的设计与开发[J].燕山大学学报, 2016, 40(5):377-389
|
| [6] |
申光宪, 郑永江, 王小伟.影响轧机轴承寿命主因的探究[J].重型机械, 2016, 6(6):1-7
|
| [6] |
申光宪, 郑永江, 王小伟.影响轧机轴承寿命主因的探究[J].重型机械, 2016, 6(6):1-7
|
|
|
|
2017, Vol. 52 
