力士樂Rexroth柱塞泵R902406178庫存當天發

柱塞泵

低等缺點(dian)。上70、80年(nian)代發展(zhan)的(de)軸配流徑(jing)(jing)向(xiang)(xiang)(xiang)柱(zhu)(zhu)塞(sai)(sai)泵(beng)(beng)(beng)(beng)(beng)克服(fu)了閥配流徑(jing)(jing)向(xiang)(xiang)(xiang)柱(zhu)(zhu)塞(sai)(sai)泵(beng)(beng)(beng)(beng)(beng)的(de)不(bu)足。由(you)(you)于(yu)徑(jing)(jing)向(xiang)(xiang)(xiang)泵(beng)(beng)(beng)(beng)(beng)結(jie)構(gou)上的(de)特點(dian)，固定(ding)了軸配流徑(jing)(jing)向(xiang)(xiang)(xiang)柱(zhu)(zhu)塞(sai)(sai)泵(beng)(beng)(beng)(beng)(beng)比軸向(xiang)(xiang)(xiang)柱(zhu)(zhu)塞(sai)(sai)泵(beng)(beng)(beng)(beng)(beng)耐沖(chong)擊、壽命(ming)長、控(kong)制(zhi)精度(du)高(gao)。變(bian)(bian)量行(xing)程短泵(beng)(beng)(beng)(beng)(beng)的(de)變(bian)(bian)量是在變(bian)(bian)量柱(zhu)(zhu)塞(sai)(sai)和限位柱(zhu)(zhu)塞(sai)(sai)作用下，改變(bian)(bian)定(ding)子(zi)的(de)偏心距實現的(de)，而(er)定(ding)于(yu)的(de)大(da)偏心距為(wei) 5—9mm（根據排量大(da)小不(bu)同），變(bian)(bian)量行(xing)程很短。且變(bian)(bian)量機構(gou)設(she)計為(wei)高(gao)壓操縱，由(you)(you)控(kong)制(zhi)閥進(jin)行(xing)控(kong)制(zhi)。故該泵(beng)(beng)(beng)(beng)(beng)的(de)響應(ying)速度(du)快。徑(jing)(jing)向(xiang)(xiang)(xiang)結(jie)構(gou)設(she)計克服(fu)了如軸向(xiang)(xiang)(xiang)柱(zhu)(zhu)塞(sai)(sai)泵(beng)(beng)(beng)(beng)(beng)滑(hua)靴偏磨的(de)問題。使其抗沖(chong)擊能力大(da)幅(fu)度(du)提高(gao)。

液壓式

液(ye)(ye)(ye)壓(ya)(ya)柱塞泵(beng)靠氣壓(ya)(ya)供(gong)油(you)的液(ye)(ye)(ye)壓(ya)(ya)油(you)箱(xiang)，在每次啟動機器后，必須等液(ye)(ye)(ye)壓(ya)(ya)油(you)箱(xiang)達到(dao)使(shi)用氣壓(ya)(ya)后，才能操作機械。直軸(zhou)斜(xie)盤式柱塞泵(beng)分(fen)為壓(ya)(ya)力供(gong)油(you)型(xing)的自(zi)吸(xi)油(you)型(xing)兩(liang)種。壓(ya)(ya)力供(gong)油(you)型(xing)液(ye)(ye)(ye)壓(ya)(ya)泵(beng)大都采用有(you)氣壓(ya)(ya)的油(you)箱(xiang)，也(ye)有(you)液(ye)(ye)(ye)壓(ya)(ya)泵(beng)本身帶有(you)補油(you)分(fen)泵(beng)向液(ye)(ye)(ye)壓(ya)(ya)泵(beng)進油(you)口提(ti)供(gong)壓(ya)(ya)力油(you)的。自(zi)吸(xi)油(you)型(xing)液(ye)(ye)(ye)壓(ya)(ya)泵(beng)的自(zi)吸(xi)油(you)能力很強，無(wu)需外(wai)力供(gong)油(you)。

2結構形式

柱塞(sai)泵(beng)分為軸向柱塞(sai)泵(beng)和(he)徑向柱塞(sai)泵(beng)兩種代表性的結(jie)構形(xing)式；柱塞(sai)缸由于徑向柱塞(sai)泵(beng)

柱塞(sai)泵(beng)是液(ye)壓(ya)系統的(de)(de)一個重(zhong)要裝置(zhi)。它依靠柱塞(sai)在缸體中(zhong)往復(fu)運動，使密封工作(zuo)容腔的(de)(de)容積發生變化來(lai)實現(xian)吸油、壓(ya)油。柱塞(sai)泵(beng)具有額定壓(ya)力高(gao)(gao)、結構緊湊、效率高(gao)(gao)和(he)流量調節方便(bian)等優點，被廣泛應(ying)用于高(gao)(gao)壓(ya)、大流量和(he)流量需要調節的(de)(de)場合，諸如液(ye)壓(ya)機(ji)、工程機(ji)械和(he)船舶中(zhong)。

中(zhong)文(wen)名柱塞(sai)泵(beng)機(ji)械(xie)分(fen)類(lei)單柱塞(sai)泵(beng)機(ji)械(xie)分(fen)類(lei)臥式柱塞(sai)泵(beng)機(ji)械(xie)分(fen)類(lei)軸向柱塞(sai)泵(beng)機(ji)械(xie)分(fen)類(lei)徑向柱塞(sai)泵(beng)廣(guang)泛應用高壓、大流(liu)量和流(liu)量需(xu)要(yao)調節

柱(zhu)塞泵(beng)一(yi)般分為單柱(zhu)塞泵(beng)、臥(wo)式柱(zhu)塞泵(beng)、軸(zhou)向柱(zhu)塞泵(beng)和徑(jing)向柱(zhu)塞泵(beng)。

力士樂Rexroth柱塞泵R902406178庫存當天發

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柱(zhu)(zhu)塞泵一般分為單柱(zhu)(zhu)塞泵、臥式柱(zhu)(zhu)塞泵、軸向柱(zhu)(zhu)塞泵和徑(jing)向柱(zhu)(zhu)塞泵。

單柱塞泵

結構組成主要(yao)有偏心(xin)(xin)輪、柱(zhu)塞、彈簧、缸(gang)體、兩個單向閥。柱(zhu)塞與缸(gang)體孔(kong)之間形(xing)成密(mi)閉(bi)容積。偏心(xin)(xin)輪旋轉(zhuan)(zhuan)一(yi)轉(zhuan)(zhuan)，柱(zhu)塞上下往復運動一(yi)次(ci)，向下運動吸油，向上運動排(pai)(pai)油。泵(beng)每轉(zhuan)(zhuan)一(yi)轉(zhuan)(zhuan)排(pai)(pai)出的油液體積稱(cheng)為排(pai)(pai)量(liang)，排(pai)(pai)量(liang)只(zhi)與泵(beng)的結構參數有關。

臥式柱塞泵

臥(wo)式(shi)柱(zhu)塞(sai)(sai)(sai)(sai)泵是由(you)幾個柱(zhu)塞(sai)(sai)(sai)(sai)（一般為3個或6個）并列安裝，用(yong)1根曲軸通過(guo)連(lian)桿滑塊或由(you)偏心軸直接推動柱(zhu)塞(sai)(sai)(sai)(sai)做(zuo)往復運動，實現吸、排液體的(de)液壓泵。它們(men)也都采(cai)用(yong)閥式(shi)配流裝置(zhi)，而(er)且大多為定(ding)量泵。煤(mei)礦液壓支架系統(tong)中的(de)乳化液泵一般都是臥(wo)式(shi)柱(zhu)塞(sai)(sai)(sai)(sai)泵。

乳化液(ye)(ye)泵用于采煤工作面(mian)，為液(ye)(ye)壓(ya)支架提供乳化液(ye)(ye)，工作原理靠曲軸的旋轉帶動(dong)活塞做(zuo)往復(fu)運動(dong)，實現吸液(ye)(ye)和排(pai)液(ye)(ye)。

軸向式

軸向(xiang)柱(zhu)塞泵（英(ying)文名Piston pump）是活塞或柱(zhu)塞的(de)往復運動方向(xiang)與(yu)(yu)缸體中心軸平(ping)行(xing)的(de)柱(zhu)塞泵。軸向(xiang)柱(zhu)塞泵利(li)用與(yu)(yu)傳動軸平(ping)行(xing)的(de)柱(zhu)塞在柱(zhu)塞孔(kong)內往復運動所(suo)產生的(de)容積(ji)變化(hua)來進行(xing)工(gong)作的(de)。由于柱(zhu)塞和柱(zhu)塞孔(kong)都是圓形零件(jian)，加(jia)工(gong)時(shi)可以達到很高的(de)精度(du)配合，因此(ci)容積(ji)效率高

直軸斜盤式

直(zhi)軸斜盤式柱塞泵(beng)分為壓(ya)力供(gong)(gong)油型(xing)和自吸油型(xing)兩種。壓(ya)力供(gong)(gong)油型(xing)液(ye)壓(ya)泵(beng)大都是(shi)采用有氣(qi)壓(ya)的油箱(xiang)，靠氣(qi)壓(ya)供(gong)(gong)油的液(ye)壓(ya)油箱(xiang)，在每次啟動機器之后，必須等(deng)液(ye)壓(ya)漬(zi)箱(xiang)達(da)到使(shi)用氣(qi)壓(ya)后，才能操作(zuo)機械(xie)。如(ru)液(ye)壓(ya)油箱(xiang)的氣(qi)壓(ya)不足時就啟動機器，會對(dui)液(ye)壓(ya)泵(beng)內的與滑靴造成(cheng)(cheng)拉脫現象，出會造成(cheng)(cheng)泵(beng)體內回程(cheng)板與壓(ya)板的非正(zheng)常磨損(sun)。

徑向式

徑(jing)向(xiang)柱塞(sai)泵可分為(wei)閥配(pei)(pei)流(liu)與軸配(pei)(pei)流(liu)兩(liang)大類。閥配(pei)(pei)流(liu)徑(jing)向(xiang)柱塞(sai)泵存在故障率高、效率