摘要
研究钢丝绳捻制中捻距倍数k与捻制系数m的关系,当k和同层等直径股(钢丝)根数n确定时,m满足确定的一元四次方程。采用换元法,视m和n为定值,k满足一元二次方程,给出k的解析表达式。以n=17求k=8.500时的mk为例,介绍用Excel表计算m的方法,给出数据计算结果。研究m和k的分布特征,通过数字拟合,得出m拟合值与k值简洁的关系式,该关系式计算结果和精确求解结果误差很小,可用于快速求解。提供组股外层钢丝直径估算表用于钢丝绳工艺设计。
To research the relationship between lay pitch multiple k and lay coefficient m in wire rope laying. When k and the pieces of the same layer and same diameters strand or steel wire （n） are confirmed, the m satisfy quartic equation with one unknown quantity. Adopting unknown quantity changing method to take m and n as constant, the k satisfy quadratic equation with one unknown quantity, the resolution expression of k is given. To take n being 17, k being 8. 500 to solute mk for example, the method to calculate rn using Excel is introduced, and data calculation results are given. To research the distribution characteristic of m and k, the laconic relation formula between m fitting value and k value is given by data fitting. The error between calculation results with the relation formula and the precision solution is small, so the formula can be used to solute fast. The rough estimate table of strand outer layer steel wire diameters is offered, which can be used to process design of wire rope.
出处
《金属制品》
2009年第4期1-5,共5页
Metal Products
