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U型螺(luo)旋(xuan)輸送機(ji)在輸(shu)(shu)(shu)送(song)(song)(song)形(xing)式上分(fen)為有(you)軸(zhou)(zhou)螺(luo)(luo)(luo)旋(xuan)(xuan)(xuan)(xuan)輸(shu)(shu)(shu)送(song)(song)(song)機(ji)(ji)(ji)(ji)和(he)無(wu)(wu)(wu)軸(zhou)(zhou)螺(luo)(luo)(luo)旋(xuan)(xuan)(xuan)(xuan)輸(shu)(shu)(shu)送(song)(song)(song)機(ji)(ji)(ji)(ji)兩種，在外型上分(fen)為U型螺(luo)(luo)(luo)旋(xuan)(xuan)(xuan)(xuan)輸(shu)(shu)(shu)送(song)(song)(song)機(ji)(ji)(ji)(ji)和(he)管式螺(luo)(luo)(luo)旋(xuan)(xuan)(xuan)(xuan)輸(shu)(shu)(shu)送(song)(song)(song)機(ji)(ji)(ji)(ji)。有(you)軸(zhou)(zhou)螺(luo)(luo)(luo)旋(xuan)(xuan)(xuan)(xuan)輸(shu)(shu)(shu)送(song)(song)(song)機(ji)(ji)(ji)(ji)適用于無(wu)(wu)(wu)粘性的(de)(de)干粉物(wu)(wu)料(liao)(liao)(liao)(liao)和(he)小顆粒物(wu)(wu)料(liao)(liao)(liao)(liao).（例如：水泥、粉煤(mei)灰、石灰、糧等）而無(wu)(wu)(wu)軸(zhou)(zhou)螺(luo)(luo)(luo)旋(xuan)(xuan)(xuan)(xuan)輸(shu)(shu)(shu)送(song)(song)(song)機(ji)(ji)(ji)(ji)適合輸(shu)(shu)(shu)送(song)(song)(song)機(ji)(ji)(ji)(ji)由粘性的(de)(de)和(he)易纏繞的(de)(de)物(wu)(wu)料(liao)(liao)(liao)(liao)。（例如：污泥、生(sheng)物(wu)(wu)質、垃(la)圾等）螺(luo)(luo)(luo)旋(xuan)(xuan)(xuan)(xuan)輸(shu)(shu)(shu)送(song)(song)(song)機(ji)(ji)(ji)(ji)的(de)(de)工(gong)作原理是旋(xuan)(xuan)(xuan)(xuan)轉的(de)(de)螺(luo)(luo)(luo)旋(xuan)(xuan)(xuan)(xuan)葉片將物(wu)(wu)料(liao)(liao)(liao)(liao)推移而進行螺(luo)(luo)(luo)旋(xuan)(xuan)(xuan)(xuan)輸(shu)(shu)(shu)送(song)(song)(song)機(ji)(ji)(ji)(ji)輸(shu)(shu)(shu)送(song)(song)(song)，使物(wu)(wu)料(liao)(liao)(liao)(liao)不與螺(luo)(luo)(luo)旋(xuan)(xuan)(xuan)(xuan)輸(shu)(shu)(shu)送(song)(song)(song)機(ji)(ji)(ji)(ji)葉片一起旋(xuan)(xuan)(xuan)(xuan)轉的(de)(de)力(li)是物(wu)(wu)料(liao)(liao)(liao)(liao)自身(shen)重(zhong)量和(he)螺(luo)(luo)(luo)旋(xuan)(xuan)(xuan)(xuan)輸(shu)(shu)(shu)送(song)(song)(song)機(ji)(ji)(ji)(ji)機(ji)(ji)(ji)(ji)殼(ke)對物(wu)(wu)料(liao)(liao)(liao)(liao)的(de)(de)摩擦(ca)阻力(li)。

U型螺旋輸送機旋轉軸上焊的螺旋葉片，葉片的面型根據輸送物料的不同有實體面型、帶式面型、葉片面型等型式。螺旋輸送機的螺旋軸在物料運動方向的終端有止推軸承以隨物料給螺旋的軸向反力，在機長較長時，應加中間吊掛軸承。
U型螺旋輸送機應用范圍：

U型螺旋輸送機廣(guang)泛(fan)應用于各行(xing)業，如(ru)(ru)建(jian)材、化工、電力、冶金、煤礦炭、糧食(shi)等行(xing)業，適用于水平(ping)或傾(qing)斜輸送粉狀、粒狀和小塊狀物料，如(ru)(ru)煤礦、灰、渣(zha)、水泥、糧食(shi)等，物料溫度小于200℃。