大扭矩铅带双辊连铸机主轴结构优化设计

Optimization Design of Twin Roll Caster Spindle Structure with High Torque for Lead Strip

用于铅带毛坯生产的双辊连铸机,最大瞬间扭矩可达240kN·m。由于主轴结构尺寸的限制,不能将主轴直径设计过大,以致铅带连铸机主轴扭转变形过大的问题一直未能很好地解决。以双辊连铸机主轴直径为设计变量,主轴质量、运行可靠性为优化目标,利用植物生长算法的向光性原理,结合连铸机主轴结构设计问题,通过研究构建了"基于植物生长算法的大扭矩铅带双辊连铸机主轴结构优化设计"数学模型。利用构建的数学模型,对双辊连铸机主轴进行实例优化设计;并通过试验证明了该方法的可行性、科学性和实用性。

The instantaneous maximum torque of twin roll caster for lead blank production reaches 240kN·m.The spindle＇s diameter can not be designed too big because of the limit of the size of the spindl e＇s structure.So it can bring some serious problems such as flutter and torsion of the spindle.Based on the spindle＇s diameter of twin roll caster as design variables and the spindle＇s quality and reliability as optimization target,by using phototropism mechanism of plant growth,combined with the design mechanism of continuous casting machine＇s spindle structure,the mathematical model was established.Using the mathematical model,the optimization design of spindle was carried out.The application verifies that the method is feasible,scientific and practical.