摘要
多线切割机排线机构是走线系统正常运行的主要机构。传统的排线机构存在各导轮之间钢丝张力波动较大、易造成钢丝拉断的缺陷。文中介绍了一种新的设计方法:通过建立导轮张力包角模型,得出导轮两边张力与包角大小和摩擦系数之间的关系;由排线机构中导轮与滑轮之间相对的几何位置,推导出钢丝张力和包角与设计参数L1、H之间的关系表达式。利用优化方法确定导轮与滑轮之间最佳的几何位置,使排线机构工作时钢丝张力波动最小,在多线切割机往复走线过程中,有利于放线辊上的钢丝会逐渐过渡到收线辊上,保证了收放线系统平稳、有序地运行。
Arranging mechanism of multi-wire cutting machine is to walk the line system normal operation of main body,there is the guide wire tension fluctuation caused by the defects of wire breaking for the traditional of wire arranging mechanism,this paper introduces a kind of new design method,through the establishment of pulley tension angle model,deduced from the relations of tension and wrap angle size and the coefficient of friction.By the guide wheel and the pulley of relative position geometrical,deduced from the tension of steel wire and wrap angle and design parameters of the formula of relation between L1,H.Optimization method is used to determine the best geometric position between the idler pulley and the pulley,which makes the tension fluctuation minimization.Facilitates line roller wire will be gradually transited to the take-up roller.The stable and ordered operation of the take-up system is ensured.
出处
《机械工程师》
2012年第1期65-67,共3页
Mechanical Engineer
基金
2011年度安徽高校省级自然科学研究项目(KJ2011A043)
关键词
多线切割
排线机构
金属丝张力
参数优化
multi-wire saw
traversing mechanism
wire tension
parameter optimization
