意大利UNIVER氣缸訂貨號OV1000180040

意大利UNIVER氣缸訂貨號OV1000180040

1）缸筒

缸筒的內徑大小代表了氣缸輸出力的大小。活塞要在缸筒內做平穩的往復滑動，缸筒內表面

的表面粗糙度應達到Ra0.8um。缸筒材質除使用高碳鋼管外，還是用高強度鋁合金和黃銅。

2）端蓋

端蓋上設有進排氣通口，有的還在端蓋內設有緩沖機構。桿側端蓋上設有密封圈和防塵圈6

以防止從活塞桿處向外漏氣和防止外部灰塵混入缸內。桿側端蓋上設有導向套5，以提高

氣缸的導向精度。

3）活塞

活塞是氣缸中的受壓力零件。為防止活塞左右兩腔相互竄氣，設有活塞密封圈12。還設有耐

磨環11以提高氣缸的導向性。

4）活塞桿

活塞桿是氣缸中zui重要的受力零件。通常使用高碳鋼，表面經鍍硬鉻處理，或使用不銹鋼，
以防腐蝕，并提高密封圈的耐磨性。

5）緩沖柱塞、緩沖節流閥

活塞兩側沿軸線方向設有緩沖柱塞1、3，同時缸蓋上有緩沖節流閥14和緩沖套15，當氣缸運

動到端頭時，緩沖柱塞進入緩沖套，氣缸排氣需經緩沖節流閥，排氣阻力增加，產生排氣背

壓，形成緩沖氣墊，起到緩沖作用。

組成:缸體，活塞，密封圈，磁環（有sensor的氣缸）

原理:壓力空氣使活塞移動，通過改變進氣方向，改變活塞桿的移動方向。

失效形式:活塞卡si，不動作；氣缸無力，密封圈磨損，漏氣。

典型氣缸工作原理和結構

以氣動系統中zui常使用的單活塞桿雙作用氣缸為例來說明，氣缸典型結構如下圖所示。它

由缸筒、活塞、活塞桿、前端蓋、后端蓋及密封件等組成。雙作用氣缸內部被活塞分成兩個

腔。有活塞桿腔稱為有桿腔，無活塞桿腔稱為無桿腔。

當從無桿腔輸入壓縮空氣時，有桿腔排氣，氣缸兩腔的壓力差作用在活塞上所形成的力克服

阻力負載推動活塞運動，使活塞桿伸出；當有桿腔進氣，無桿腔排氣時，使活塞桿縮回。若

有桿腔和無桿腔交替進氣和排氣，活塞實現往復直線運動。
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