任何振动机械都要有减振装置,不然巨大的激振力传到地基,任何坚固的基础都受不了。一台一吨重的振动筛(这是很小的),它需要四吨的激振力,筛子共有四个支点,每个承受一吨的交变力,这是一般厂房所受不了的。因此,振动机械必须设计减振弹簧来隔振。目前,国内外振动机械减振设计均采用频率比法,所有有关大学的教科书,也都讲授这种方法。频率比法是可行的,千万台振动机械目前都在良好的运转就证明了这 Any vibration machinery must have a damping device, or huge excitation force spread to the foundation, any solid foundation can not stand. A one-ton vibrating shaker (which is tiny) requires four tons of exciting force, and the sieve has four fulcrums, each bearing a ton of alternating force, which is unbearable to a typical plant. Therefore, the vibration machine must design damping spring to vibration isolation. At present, the vibration mechanical vibration design both at home and abroad are using the frequency ratio method, all relevant university textbooks, but also to teach this method. Frequency ratio method is feasible, tens of millions of vibrating machinery are currently in good operation to prove this