大截面碳纤维导线卡线器夹嘴优化设计

Optimization design of grip jaw for large cross section carbon fiber conductor

卡线器夹嘴长度决定着平行移动式导线卡线器的整体尺寸和质量,也决定着被夹持导线是否会发生损伤。针对夹嘴长度多以导线直径乘放大倍率、试验验证的方法确定,缺乏一定理论支撑,通过对1 660mm2大截面碳纤维导线的结构特点进行分析,并利用试验得出碳纤维导线芯棒径向耐压强度判据。参考1 250mm2导线应力仿真结果得出型线铝股塑性范围判据,取夹嘴长度为350,325,275mm,对1 660mm2大截面碳纤维导线进行仿真研究,并根据仿真结果优化设计了适用于JLZ2X1/F2A-1660/95-492型1 660mm2大截面碳纤维导线卡线器。优化后的导线卡线器的夹嘴长度减小了21.9%,质量减小了25.0%。研究结果可为卡线器的设计和优化提供参考依据。

As the key parameter,the length of the jaw of the parallel mobile grip determines the size and quality of the grip,and it also determines whether the conductor is damaged.In view of the fact that the length of the jaw was mostly determined by the condutor diameter magnification ratio and the test,and it lacked some theoretical support,the structural characteristics of 1660 mm^2 large cross section carbon fiber conductor were analyzed,and the radial compressive strength criterion of carbon fiber was obtained through tests.Referring to the stress simulation results of the 1 250 mm^2 conductor,the plastic deformation range of the aluminum shaped wires was obtained.The simulation study of 1600 mm^2 large cross section carbon fiber conductor was carried out when the length of the jaw was 350,325 and 275 mm.Based on the simulation results,a grip for JLZ2X1/F2A-1660/95-492 type 1660 mm^2 large cross section carbon fiber conductor was designed and optimized.After optimized design,the length of the jaw was reduced by 21.9%,and the weight of grip was reduced by 25.0%.The research results can provide reference for the design and analysis of the grip.