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液壓泵的液壓系統工作原理液壓維修

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液壓泵的液壓系統工作原理液壓維修

發布日期:2015-10-29 14:47 來源:http://021fzc.com 點擊:

液壓維修液壓泵是液壓系統的動力元件,液壓泵由兩個大小不同的液缸組成的,在液缸里充滿水或油。充水的叫“水壓機”; 充油的稱“油壓機”。兩個液缸里各有一個可以滑動的活塞,如果在小活塞上加一 定值的壓力, 根據帕斯卡定律, 小活塞將這一壓力通過液體的壓強傳遞給大活塞, 將大活塞頂上去。 設小活塞的橫截面積是 S1, 加在小活塞上的向下的壓力是 F1。 于是,小活塞對 能夠大小不變地被液體向各個方向傳遞”。大活塞所受到的壓強必然也等于 P。 若大活塞的橫截面積是 S2,壓強 P 在大活塞上所產生的向上的壓力 截面積是小活塞橫截面積的倍數。

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