根据二次螺旋钢丝展开长度理论计算股捻距  

Lay length of strand calculated according to spread length theory of secondary spiral steel wire

作　　者：秦万信 沈志军 韩非 吴佩军 Qin Wanxin;Shen Zhijun;Han Fei;Wu Peijun(Xianyang BOMCO Steel Tube&Wire Rope Co.,Ltd.,Xianyang 712000,China)

机构地区：[1]咸阳宝石钢管钢绳有限公司,陕西咸阳712000

出　　处：《金属制品》2025年第2期8-13,共6页Metal Products

摘　　要：对多圆股圆截面钢丝绳,可测得钢丝绳直径、钢丝绳捻距和螺旋股中外层二次螺旋钢丝绕股中心旋转一圈展开长度,结合近似测得螺旋股径和二次螺旋钢丝直径,在不需要将螺旋股拉直情况下,可通过公式进行螺旋股捻距理论计算。采用生产现场验证和钢丝绳实物验证,结果表明:由给出公式求得螺旋股捻距的计算值与实际参数有很好的一致性,对计算结果影响最大的是二次螺旋钢丝绕股中心旋转一圈的展开长度,螺旋股直径误差和二次螺旋钢丝直径误差的影响可以忽略。For multi-strand circular section wire rope,wire rope diameter,lay distance of wire rope and length of the outer secondary spiral steel wire rotating around center of strand can be measured,combined with approximate measurement of spiral strand diameter and diameter of secondary spiral steel wire,distance of spiral strand can be calculated theoretically by formula without straightening spiral strand.Results show that there is good agreement between calculated lay length of spiral strand and actual parameters,the most important factor affecting calculation result is development length of secondary spiral wire rotating around center of the strand,and influence of diameter error of spiral strand and secondary spiral wire diameter error can be ignored after production verification and wire rope verification.

关 键 词：钢丝绳 捻角 捻距 二次螺旋钢丝 

分 类 号：TG356.45[金属学及工艺—金属压力加工]