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擺動式液壓缸

擺(bai)(bai)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)式(shi)液壓缸(gang)是輸出扭矩并實(shi)現往(wang)復(fu)運(yun)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)的(de)執行元(yuan)件，有(you)單葉(xie)片、雙(shuang)(shuang)葉(xie)片、螺(luo)旋(xuan)擺(bai)(bai)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)等幾種(zhong)形式(shi)。葉(xie)片式(shi)式(shi)：定子(zi)(zi)(zi)塊固(gu)定在缸(gang)體上，而葉(xie)片和轉(zhuan)(zhuan)子(zi)(zi)(zi)連(lian)接(jie)在一起。根據進油方向，葉(xie)片將帶動(dong)(dong)(dong)(dong)(dong)(dong)(dong)轉(zhuan)(zhuan)子(zi)(zi)(zi)作往(wang)復(fu)擺(bai)(bai)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)。螺(luo)旋(xuan)擺(bai)(bai)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)式(shi)又(you)分(fen)單螺(luo)旋(xuan)擺(bai)(bai)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)和雙(shuang)(shuang)螺(luo)旋(xuan)兩種(zhong)，現在雙(shuang)(shuang)螺(luo)旋(xuan)比(bi)較常用，靠兩個螺(luo)旋(xuan)副降液壓缸(gang)內活塞的(de)直線運(yun)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)轉(zhuan)(zhuan)變為直線運(yun)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)與自轉(zhuan)(zhuan)運(yun)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)的(de)復(fu)he運(yun)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)，從而實(shi)現擺(bai)(bai)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)運(yun)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)。

4.液壓缸缸體(ti)內孔表面(mian)劃(hua)傷(shang)的不良后果(guo)及快速修復方法：① 劃(hua)傷(shang)溝槽擠出的材料屑沫會嵌入密封件(jian)，運行(xing)時在(zai)損壞(huai)密封件(jian)工作(zuo)部位(wei)的同時，可能造成新的劃(hua)傷(shang)區域痕路。

② 惡化缸筒內壁的(de)表面粗(cu)糙(cao)度，增大摩擦力，易產生爬行現象(xiang)。

③ 加重液(ye)壓(ya)缸(gang)的(de)內泄漏，使液(ye)壓(ya)缸(gang)工作效率(lv)降(jiang)低。引起缸(gang)體內孔表面劃傷(shang)的(de)主要原因(yin)如下。

（1）裝(zhuang)配液(ye)壓缸時(shi)造(zao)成的傷痕(hen)

叉車液壓(ya)系統常(chang)見的故障檢查與排(pai)除

叉車的主要液壓作(zuo)業部分有起升缸(gang)和傾(qing)斜缸(gang)，其故障的檢查與排(pai)除方(fang)法列舉如下 ：

1、叉(cha)車空載時不能起升(sheng)和傾(qing)斜

故(gu)障(zhang)檢查1：系(xi)統油量不足

故障(zhang)排除：加油至油標線。

故障排除(chu)2：齒輪(lun)泵排量不足齒頂隙和齒側隙過(guo)大(da)

故障檢查(cha)：更(geng)換油泵或零件

故障檢查3：多路(lu)閥進油路(lu)堵塞

故障排除：疏(shu)通多路(lu)閥油路(lu)