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交流同步電動機

單相異步電動機的轉子組成

發布日期:2022-04-18 點擊率:53

    單相異步電動機的轉子主要有轉軸、鐵芯、繞組三部分,現分述如下。

    轉軸用含碳軸鋼車制而成,兩端安置用于轉動的軸承。單相異步電動機常用的軸承有滾動與滑動兩種,小容量的電動機都采用含油滑動軸承,其結構簡單、噪聲小。軸承由軸承蓋或軸承座支撐后裝在端蓋上。

    轉子鐵芯是先用與定子鐵芯相同的硅鋼片沖制,將沖有齒槽的轉子鐵芯盛裝后壓入轉軸。

    單相異步電動機的轉子繞組一般有兩種形式,即籠型和電樞型。籠型轉子繞組用鋁或鋁合金一次鑄造而成,它廣泛應用于各種單相異步電動機。電樞型轉子繞組則采用與直流電動機相同的分布式繞組形式,按波繞的接法將線圈的首、尾端經換向器連接成一個整體的電樞繞組,電樞型轉子繞組主要用于單相異步串勵電動機。

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