力士樂葉片泵只不過是離心泵的一種具體應用的泵而命名。實質上砂泵只是一個籠統的叫法。一般主要用在礦業，煤炭，冶金，化工，環保等行業。一般意義的砂泵更多是指用在環保，挖沙，河道清淤等行業較多。這個系列砂泵主要以ES或者G系列的較多。除此之外，叫做砂泵的類型還有很多，石油領域的SB砂泵，礦業上的PS砂泵系列等等。本文介紹的砂泵主要以通常意義上的ES或G系列的挖沙，環保行業的用的砂泵。
葉(xie)片泵(beng)均為臥式、單(dan)泵(beng)殼結(jie)構的(de)(de)(de)(de)離心(xin)泵(beng)。采(cai)用(yong)特殊的(de)(de)(de)(de)卡箍夾(jia)緊泵(beng)體(ti)與泵(beng)蓋，泵(beng)的(de)(de)(de)(de)吐(tu)出口方(fang)向可(ke)在360度(du)的(de)(de)(de)(de)任何一個位置，安裝(zhuang)使用(yong)方(fang)便。 砂泵(beng)的(de)(de)(de)(de)軸承組件采(cai)用(yong)圓筒(tong)式結(jie)構，便于(yu)調(diao)整(zheng)葉(xie)輪(lun)與泵(beng)體(ti)之間的(de)(de)(de)(de)間隙，維修時可(ke)整(zheng)體(ti)拆除。軸承采(cai)用(yong)油(you)脂潤滑。砂泵(beng)的(de)(de)(de)(de)軸封形式有(you)填料(liao)密(mi)封、付葉(xie)輪(lun)密(mi)封、機(ji)械密(mi)封。砂泵(beng)流(liu)(liu)道寬暢(chang)，汽(qi)蝕性能好，效率高(gao)，耐磨蝕。 傳(chuan)(chuan)動(dong)(dong)方(fang)式主(zhu)要有(you)V型三角帶(dai)傳(chuan)(chuan)動(dong)(dong)、彈(dan)性聯(lian)軸器傳(chuan)(chuan)動(dong)(dong)、輪(lun)減速(su)箱傳(chuan)(chuan)動(dong)(dong)、液(ye)力偶(ou)合器傳(chuan)(chuan)動(dong)(dong)、變頻(pin)驅(qu)動(dong)(dong)裝(zhuang)置，可(ke)控硅調(diao)速(su)等。 過流(liu)(liu)部(bu)件材質采(cai)用(yong)高(gao)硬度(du)的(de)(de)(de)(de)耐磨合金鑄鐵。

力(li)(li)士樂(le)葉片(pian)泵(beng)(beng)(beng)(beng)是(shi)活塞(sai)(sai)或柱(zhu)塞(sai)(sai)的(de)(de)往復運(yun)動(dong)方向(xiang)與(yu)缸體中(zhong)心軸平行的(de)(de)葉片(pian)泵(beng)(beng)(beng)(beng)。軸向(xiang)葉片(pian)泵(beng)(beng)(beng)(beng)是(shi)利(li)用(yong)(yong)與(yu)傳動(dong)軸平行的(de)(de)柱(zhu)塞(sai)(sai)在(zai)柱(zhu)塞(sai)(sai)孔內(nei)往復運(yun)動(dong)所(suo)產生的(de)(de)容積變化來進行工(gong)(gong)作的(de)(de)。由于(yu)柱(zhu)塞(sai)(sai)和柱(zhu)塞(sai)(sai)孔都是(shi)圓形零件，加(jia)工(gong)(gong)時(shi)(shi)可(ke)以(yi)達(da)到(dao)很高(gao)的(de)(de)精度配合，因(yin)此容積效率(lv)高(gao)，運(yun)轉平穩，流(liu)量均勻性好，噪(zao)聲(sheng)低(di)，工(gong)(gong)作壓(ya)(ya)(ya)(ya)(ya)力(li)(li)高(gao)等優點，但(dan)對液(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)(ya)(ya)油(you)(you)(you)的(de)(de)污染較敏感(gan)，結構(gou)較復雜，造價(jia)較高(gao)。直(zhi)軸斜(xie)盤式柱(zhu)塞(sai)(sai)泵(beng)(beng)(beng)(beng)分(fen)為壓(ya)(ya)(ya)(ya)(ya)力(li)(li)供油(you)(you)(you)型(xing)(xing)的(de)(de)自吸油(you)(you)(you)型(xing)(xing)兩種(zhong)。壓(ya)(ya)(ya)(ya)(ya)力(li)(li)供油(you)(you)(you)型(xing)(xing)液(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)(ya)(ya)泵(beng)(beng)(beng)(beng)大都采用(yong)(yong)有氣(qi)壓(ya)(ya)(ya)(ya)(ya)的(de)(de)油(you)(you)(you)箱，也有液(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)(ya)(ya)泵(beng)(beng)(beng)(beng)本身帶(dai)有補油(you)(you)(you)分(fen)泵(beng)(beng)(beng)(beng)向(xiang)液(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)(ya)(ya)泵(beng)(beng)(beng)(beng)進油(you)(you)(you)口提供壓(ya)(ya)(ya)(ya)(ya)力(li)(li)油(you)(you)(you)的(de)(de)。自吸油(you)(you)(you)型(xing)(xing)液(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)(ya)(ya)泵(beng)(beng)(beng)(beng)的(de)(de)自吸油(you)(you)(you)能力(li)(li)很強，無需(xu)外力(li)(li)供油(you)(you)(you)。靠氣(qi)壓(ya)(ya)(ya)(ya)(ya)供油(you)(you)(you)的(de)(de)液(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)(ya)(ya)油(you)(you)(you)箱，在(zai)每次啟動(dong)機(ji)器后(hou)，必須等液(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)(ya)(ya)漬箱達(da)到(dao)使用(yong)(yong)氣(qi)壓(ya)(ya)(ya)(ya)(ya)后(hou)，才能操作機(ji)械。如液(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)(ya)(ya)油(you)(you)(you)箱的(de)(de)氣(qi)壓(ya)(ya)(ya)(ya)(ya)不(bu)足時(shi)(shi)就擔任機(ji)器，會(hui)對液(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)(ya)(ya)泵(beng)(beng)(beng)(beng)內(nei)的(de)(de)與(yu)滑鞭(bian)造成拉(la)脫現象(xiang)，出會(hui)造成泵(beng)(beng)(beng)(beng)體內(nei)回程板與(yu)壓(ya)(ya)(ya)(ya)(ya)板的(de)(de)非(fei)正常(chang)磨損。

1、力(li)土樂葉片(pian)泵是液(ye)壓(ya)(ya)系統的(de)重要(yao)設備。它依靠(kao)葉片(pian)泵在缸(gang)體中(zhong)的(de)往復運動來改變(bian)密(mi)封工作室的(de)容(rong)積，實現吸(xi)油和(he)壓(ya)(ya)力(li)。葉片(pian)泵具有額定壓(ya)(ya)力(li)高(gao)(gao)、結構緊湊、效率高(gao)(gao)、流(liu)(liu)量(liang)調(diao)節(jie)(jie)方便的(de)優點,廣泛應(ying)用于(yu)高(gao)(gao)壓(ya)(ya)、大流(liu)(liu)量(liang)以及需(xu)要(yao)調(diao)節(jie)(jie)流(liu)(liu)量(liang)的(de)場(chang)合，如液(ye)壓(ya)(ya)機(ji)、工程機(ji)械、船(chuan)舶等(deng),

2、力士(shi)樂葉(xie)片(pian)泵(beng)和(he)葉(xie)片(pian)泵(beng)套是一對(dui)精密配(pei)合零件，配(pei)對(dui)磨削(xue)后(hou)不(bu)能互(hu)換。它們(men)需要(yao)高精度、光滑(hua)(hua)的(de)表面和(he)良好的(de)耐(nai)磨性(xing)。徑向間隙為0.002~0.003mm3、力土(tu)樂葉(xie)片(pian)泵(beng)頭部圓柱(zhu)面上(shang)開有滑(hua)(hua)槽,滑(hua)(hua)槽通過(guo)徑向孔(kong)和(he)軸(zhou)向孔(kong)與頂部相通。其目的(de)是改變循(xun)環的(de)供油(you)(you)。葉(xie)片(pian)泵(beng)套設有進油(you)(you)孔(kong)和(he)回(hui)油(you)(you)孔(kong)，兩者均與泵(beng)上(shang)部的(de)低壓(ya)油(you)(you)腔相通。葉(xie)片(pian)泵(beng)套安裝(zhuang)在泵(beng)的(de)上(shang)部后(hou)，應通過(guo)定位釘進行定位。

4、力士樂葉片(pian)泵的(de)頭部滑槽位置不同(tong)，換油(you)方(fang)式(shi)也不同(tong)。

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