一、前言我矿4m 卷扬机由单钩提升改为双钩提升后,副罐卷筒到天轮所形成夹角超过规定的偏角1°30′,使用中最大的偏角为2°27′54″。多年来实践证明,偏角在1°56′47″～2°27′54″的范围内,提升缠绕中出现跳槽,致使卷筒衬木寿命缩短。综合分析,其原因是偏角大于1°30′,提升钢丝绳缠绕过程中作用在卷筒上的轴向分力增大,加上提升钢丝绳运行中上下左右波动,加速对卷筒衬木绳槽凸出部位的磨削,当磨损到一 I. INTRODUCTION After the 4m winch of mine is changed from single hook to double hook, the angle formed by the auxiliary drum to the sheave exceeds 1 ° 30 ° and the maximum declination is 2 ° 27’54 Years of practice has proved that the declination angle in the range of 1 ° 56’47 “~ 2 ° 27’54”, to enhance the winding occurs in the winding, resulting in shortened spool lining life. Comprehensive analysis, the reason is that the declination is greater than 1 ° 30 ’to enhance the role of the wire rope winding process in the axial component of the increase, together with the lifting wire rope up and down fluctuations during operation to speed up the bulge of the drum lining wood rope groove grinding, wear To a