Analysis and optimization of anti-loosening structure of N-type pyramid sleeve roll expanding-collapsing cylinder
TONG Kun
SHAO Shuai
ZHANG Jian
PU Wei-fei
LIU Liang
ZHANG Peng
Abstract：In recent years,the board materials,such as the automobile board,home appliance board,should improve quality requirements on the surface of the sheet used in the process of board materials deep processing industry.There are higher requirements for the correction and leveling process in the post-processing.The looseness of the connection site occurred during use of N-type pyramid sleeve coiler mandrel expanding-collap-sing cylinder,for Shougang Jingtang hot rolling 1 580 mm leveling unit,the anti-loose structure of the loose part was analyzed,and the optimal scheme were obtained after many experiments.By increasing the pin connection and thread connection prevent the pull rod parts of coiler mandrel loose,and improving the clamping degree of the jaw plate to realize the anti-loosening of the hollow shaft.The anti-loosening scheme makes the drum safe and stable in the actual working conditions,which improves the performance of the leveling unit,and to ensure the smooth operation of the unit.
Keywords：levelingN-type pyramid sleeve rollexpanding-collapsing cylinderanti-loosening structure
Publication Date：2023-11-20
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 97-101 )