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風機在運行中，造成振動的主要原因有哪些?振動方向有哪幾種?

來源： | 發布日期：2022-12-13

答:離心風機在運行中，造成振動的主要原因有:
①轉子不平衡;
② 離心風機與原動機或與變速器的中心不正;

③軸承油膜振蕩;

④軸的共振;

⑤離心風機内部摩擦;

⑥潤滑系統不良;

⑦轉子松動;

⑧風機基礎或機座剛度不夠或不牢固;

⑨風機傳動機構裝配不良;

⑩電動機電磁性原因。

風機振動方向有垂直、橫向和軸向三種。一般來說，造成振派動的原因比較多，但在運行中集中反映的是軸的中心不正或轉子不平衡。大多數振動是是在垂直方向。但在測量三個方向振動時，橫向振動也較大。振動一般用測振儀測量，比比較准確，有經驗的工人和技術人員一般憑手的感覺也能感覺出振動的大小。

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