高振强振动磨的隔振分析与隔振弹簧优化

Vibration Isolation Analysis of Vibration Mill of High Vibration Intensity and Optimization of Vibration Isolation Springs

在超硬粉体超微粉碎中,由于高振强而出现的系统激振力、振幅激增,导致系统产生一系列的问题而无法正常工作.为解决此类问题需进行高振强振动状态下的隔振分析与隔振弹簧设计.构建具有明显隔振效果的双质体振动结构与特殊的弹簧联接方式,在保障系统强度、刚度等性能参数的基本要求前提下实施隔振弹簧优化.研究表明,考虑系统必须的约束条件等因素后的优化设计结果,不仅能使弹簧质量下降44%,且能适应高振强振动磨机对超硬材料的超微粉碎,解决高振强磨机运行中的隔振难题,取得良好的隔振效果.

In the process of superfine grinding of superhard powder, the dramatic increase in amplitude vibration and exciting force in the system due to high vibration intensity leads to a series of problems and failure. To address such problems, this paper examines isolation vibration under the conditions of high vibration intensity and designs some vibration isolation springs so as to construct a double-mass vibrating system able to isolate vibration and a special spring connection means. Thus, vibration isolation springs can be optimized and such parameters as the system intensity and stiffness are guaranteed. The results show that the optimized springs which take necessary restriction factors into account is not only able to reduce the spring weight by 44 per cent, but also adapt to situation where superhard materials are ground by vibration mills of high vibration intensity. Accordingly, the problem of vibration isolation in vibration mills of high vibration intensity is effectively solved.