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        柴油機運轉時發出異常噪聲或振動該怎么辦

        2019-03-22 02:03:59

        柴油機運轉時發出異常噪聲或振動

        序號 產生原因 排除方法
        1 噴油過早或各缸供油不均勻,造成氣缸內發出清脆而有節奏的金屬敲擊聲,啟動或低轉速時特別強烈 調整供油提前角或調整油量均勻性
        2 進、排氣門間隙過大,發出有節奏的輕微敲擊聲 調整氣門間隙
        3 柴油機未暖車即加大負荷,因活塞與氣缸套間隙較大,產生敲擊聲 卸除負荷進行空轉暖車
        4 活塞、活塞環與氣缸套磨損過大產生敲擊聲 更換相應零件
        5 曲軸各軸徑與軸瓦磨損過大,沿機體整個長度內可聽到敲擊聲 檢修或更換
        6 壓縮比過高,工作粗暴、振動大 按規定調整壓縮比

         

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