硬质合金复合轧辊的结构优化

本文分析了硬质合金复合轧辊机械复合几种形式的优缺点,设计了液压法兰机械螺母式硬质合金复合轧辊;用普通机械螺母完全替代了液压螺母,预紧机构只是装卸的工具,简化了硬质合金复合轧辊的结构;易老化的密封元件,不参与轧钢生产,不受其恶劣环境的影响,材质要求降低,使用寿命增长;预紧力所产生的摩擦力矩,远大于轧钢所需的轧制力矩,完全满足棒线的轧制条件;结构优化前后复合轧辊各个组件受力状况无任何改变,并且优化后的结构,受力更加均匀,钢轴弯曲变形小;预紧机构综合成本降低很多,将近4 000～8 000元/件,年可节省成本80～160万元;经过20次修磨,长时间工艺应用实验后,液压法兰机械螺母式硬质合金复合轧辊没有出现松动,结构稳定、安全、可靠,此结构已在我公司所有客户中推广应用。液压法兰机械螺母式硬质合金复合轧辊拆卸方便、省力,操作者劳动强度降低。

The Optimum Structural Design of Cemented Carbide Composite Roll

The advantages and disadvantages of mechanical compositing for carbide composite roll were analysed in this paper.The pattern of the hydraulic flange nut was designed for carbide composite roll.The structure of carbide composite roll was simplified via replacing the hydraulic nuts by ordinary mechanical nuts completely.It makes preload device become handling tool.The requirement for material quality of seal components was lowered because it is far away from steel rolling production.The severe environment ha...