VICKERS柱塞(sai)泵工作原理： VICKERS柱塞(sai)泵是(shi)液壓系(xi)統(tong)的(de)壹(yi)個(ge)重要裝(zhuang)置。它依(yi)靠柱塞(sai)在(zai)缸(gang)體(ti)中(zhong)往(wang)復(fu)運(yun)動(dong)，使密封(feng)工作容(rong)腔的(de)容(rong)積發(fa)生(sheng)變(bian)化(hua)來實現(xian)吸(xi)油、壓油。柱塞(sai)在(zai)缸(gang)體(ti)中(zhong)要往(wang)復(fu)運(yun)動(dong)，因(yin)此(ci)，它的(de)運(yun)動(dong)量很(hen)大(da)，在(zai)工作過程(cheng)中(zhong)需(xu)要承(cheng)受(shou)巨(ju)大(da)的(de)摩擦(ca)力(li)，因(yin)此(ci)，柱塞(sai)要求(qiu)高的(de)硬(ying)度(du)、耐磨(mo)性和使用(yong)壽(shou)命(ming)以(yi)及(ji)高(gao)的(de)精(jing)度(du)等。通(tong)過研(yan)究，采用(yong)淬火(huo)熱處理(li)可(ke)以滿足(zu)柱塞(sai)的(de)技(ji)術(shu)要求(qiu)。
美(mei)國威格(ge)士(shi)柱塞(sai)泵的(de)產(chan)品(pin)分類 1.軸(zhou)向柱塞(sai)泵
軸(zhou)向柱塞(sai)泵是(shi)活(huo)塞(sai)或柱塞(sai)的(de)往(wang)復(fu)運(yun)動(dong)方向與(yu)缸(gang)體(ti)中(zhong)心(xin)軸(zhou)平(ping)行的(de)柱塞(sai)泵。軸(zhou)向柱塞(sai)泵是(shi)利(li)用(yong)與(yu)傳動(dong)軸平(ping)行的(de)柱塞(sai)在(zai)柱塞(sai)孔內往(wang)復(fu)運(yun)動(dong)所產生(sheng)的(de)容(rong)積變(bian)化(hua)來進(jin)行工作的(de)。由於(yu)柱塞(sai)和柱塞(sai)孔都是(shi)圓形(xing)零件，加工時可(ke)以(yi)達(da)到很(hen)高的(de)精(jing)度(du)配合，因(yin)此(ci)容(rong)積效(xiao)率(lv)高(gao)，運(yun)轉(zhuan)平(ping)穩，流(liu)量(liang)均勻性好，噪(zao)聲(sheng)低，工作壓力高(gao)等優(you)點，但對(dui)液壓油的(de)汙染較(jiao)敏(min)感(gan)，結(jie)構(gou)較(jiao)復(fu)雜(za)，造(zao)價較(jiao)高(gao)。
2.直軸(zhou)斜盤(pan)式(shi)柱塞(sai)泵
直(zhi)軸斜盤(pan)式(shi)柱塞(sai)泵分(fen)為(wei)壓(ya)力(li)供(gong)油型的(de)自(zi)吸(xi)油型兩種(zhong)。壓(ya)力供(gong)油型液壓泵(beng)大(da)都采用(yong)有(you)氣(qi)壓的(de)油箱，也(ye)有液壓泵(beng)本(ben)身帶(dai)有(you)補油分泵向(xiang)液壓泵(beng)進(jin)油口(kou)提供(gong)壓(ya)力油的(de)。自(zi)吸(xi)油型液壓泵(beng)的(de)自(zi)吸(xi)油能(neng)力(li)很(hen)強，無需(xu)外(wai)力供(gong)油。靠氣(qi)壓供(gong)油的(de)液壓油箱，在(zai)每(mei)次啟(qi)動(dong)機器(qi)後，必須等液壓漬(zi)箱達(da)到使用(yong)氣(qi)壓後，才(cai)能(neng)操(cao)作(zuo)機械。如液壓油箱的(de)氣(qi)壓不(bu)足時就(jiu)擔任機器(qi)，會(hui)對(dui)液壓泵(beng)內的(de)與(yu)滑鞭(bian)造(zao)成(cheng)拉脫現(xian)象(xiang)，出會造(zao)成(cheng)泵(beng)體(ti)內回程(cheng)板(ban)與(yu)壓板(ban)的(de)非(fei)正常磨(mo)損。
3.液壓柱塞(sai)泵
液壓柱塞(sai)泵靠氣(qi)壓供(gong)油的(de)液壓油箱，在(zai)每(mei)次啟(qi)動(dong)機器(qi)後，必須等液壓漬(zi)箱達(da)到使用(yong)氣(qi)壓後，才(cai)能(neng)操(cao)作(zuo)機械。直(zhi)軸斜盤(pan)式(shi)柱塞(sai)泵分(fen)為(wei)壓(ya)力(li)供(gong)油型的(de)自(zi)吸(xi)油型兩種(zhong)。壓(ya)力供(gong)油型液壓泵(beng)大(da)都采用(yong)有(you)氣(qi)壓的(de)油箱，也(ye)有液壓泵(beng)本(ben)身帶(dai)有(you)補油分泵向(xiang)液壓泵(beng)進(jin)油口(kou)提供(gong)壓(ya)力油的(de)。自(zi)吸(xi)油型液壓泵(beng)的(de)自(zi)吸(xi)油能(neng)力(li)很(hen)強，無需(xu)外(wai)力供(gong)油。對(dui)於(yu)自(zi)吸(xi)油型柱塞(sai)泵，液壓油箱內的(de)油液不得(de)低於油標(biao)下限，要保(bao)持(chi)足(zu)夠數量的(de)液壓油。液壓油的(de)清潔度(du)越(yue)高，液壓泵(beng)的(de)使用(yong)壽(shou)命(ming)越(yue)長。
4.徑向柱塞(sai)泵
徑(jing)向柱塞(sai)泵可(ke)分為(wei)閥(fa)配流(liu)與(yu)軸配流(liu)兩大(da)類。閥(fa)配流(liu)徑(jing)向柱塞(sai)泵存(cun)在(zai)故(gu)障率(lv)高(gao)、效率(lv)低等缺(que)點。上70、80年代(dai)發(fa)展(zhan)的(de)軸(zhou)配流(liu)徑(jing)向柱塞(sai)泵克服了閥配流(liu)徑(jing)向柱塞(sai)泵的(de)不(bu)足(zu)。由於(yu)徑向(xiang)泵結(jie)構(gou)上(shang)的(de)特(te)點，陜定(ding)了軸配流(liu)徑(jing)向柱塞(sai)泵比(bi)軸向(xiang)柱塞(sai)泵耐(nai)沖擊(ji)、壽命(ming)長(chang)、控制(zhi)精(jing)度(du)高。變(bian)量行程短(duan)泵的(de)變(bian)量是(shi)在(zai)變(bian)量柱塞(sai)和限(xian)位柱塞(sai)作用(yong)下，改變(bian)定(ding)子(zi)的(de)偏心(xin)距實現(xian)的(de)，而定(ding)於(yu)的(de)zui大(da)偏心(xin)距為(wei) 5—9mm（根據排量大(da)小(xiao)不(bu)同），變(bian)量行程很(hen)短(duan)。且(qie)變(bian)量機構設(she)計為(wei)高(gao)壓(ya)操(cao)縱(zong)，由控制(zhi)閥進(jin)行控制(zhi)。故該(gai)泵的(de)響應(ying)速度(du)快(kuai)。徑向(xiang)結(jie)構(gou)設(she)計克服了如軸向(xiang)柱塞(sai)泵滑(hua)靴(xue)偏磨(mo)的(de)問(wen)題(ti)。使其抗(kang)沖(chong)擊能(neng)力(li)大(da)幅(fu)度(du)提高(gao)。 VICKERS變(bian)量柱塞(sai)泵，可(ke)以串(chuan)聯齒輪泵(beng)。由齒(chi)輪泵(beng)與(yu)柱塞(sai)泵共(gong)同構(gou)成(cheng)的(de)油源系統(tong)，可以(yi)控制(zhi)整體(ti)的(de)功率(lv)曲線，使得恒(heng)功率(lv)控制(zhi)不再局(ju)限於對(dui)單(dan)個(ge)油泵的(de)控制(zhi)，而是(shi)整(zheng)個系統(tong)。 VICKERS變(bian)量柱塞(sai)泵工作狀(zhuang)態(tai)： VICKERS變(bian)量柱塞(sai)泵其吸(xi)入(ru)和排出閥都是(shi)單向(xiang)閥。當(dang)柱塞(sai)外拉時，工作室內壓力(li)降(jiang)低，出口(kou)閥(fa)關(guan)閉，低於進(jin)口(kou)壓(ya)力(li)時，進(jin)口(kou)閥(fa)打開(kai)，液體(ti)進(jin)入；柱塞(sai)內推時，工作室壓力(li)升高(gao)，進(jin)口(kou)閥(fa)關(guan)閉，高於出口(kou)壓(ya)力(li)時，出口(kou)閥(fa)打開(kai)，液體(ti)排出。 帶滑(hua)靴(xue)結(jie)構(gou)的(de)軸(zhou)向(xiang)柱塞(sai)泵是(shi)目(mu)前使用(yong)zui廣(guang)泛(fan)的(de)軸(zhou)向(xiang)柱塞(sai)泵，安(an)放(fang)在(zai)缸(gang)體(ti)中(zhong)的(de)柱塞(sai)通(tong)過滑(hua)靴(xue)與(yu)斜盤(pan)相(xiang)接(jie)觸，當(dang)傳動(dong)軸帶(dai)動(dong)缸(gang)體(ti)旋(xuan)轉(zhuan)時，斜盤(pan)將(jiang)柱塞(sai)從缸(gang)體(ti)中(zhong)拉出或推(tui)回(hui)，完(wan)成(cheng)吸(xi)排油過程(cheng)。柱塞(sai)與(yu)缸(gang)孔組(zu)成(cheng)的(de)工作容(rong)腔中(zhong)的(de)油液通(tong)過配油盤(pan)分(fen)別(bie)與(yu)泵的(de)吸(xi)、排油腔相通(tong)。變(bian)量機構用(yong)來改變(bian)斜盤(pan)的(de)傾(qing)角(jiao)，通(tong)過調(tiao)節(jie)斜盤(pan)的(de)傾(qing)角(jiao)可(ke)改變(bian)泵的(de)排量。 VICKERS變(bian)量柱塞(sai)泵柱塞(sai)往(wang)復(fu)運(yun)動(dong)總行程L是(shi)不(bu)變(bian)的(de)，由凸(tu)輪的(de)升程(cheng)決(jue)定(ding)。柱塞(sai)每循(xun)環(huan)的(de)供(gong)油量大(da)小(xiao)取(qu)決(jue)於供(gong)油行程,供(gong)油行程不(bu)受(shou)凸(tu)輪軸(zhou)控制(zhi)是可變(bian)的(de)。供(gong)油開(kai)始時刻(ke)不(bu)隨供(gong)油行程的(de)變(bian)化(hua)而變(bian)化(hua)。轉(zhuan)動(dong)柱塞(sai)可改變(bian)供油終了時刻(ke)，從而改變(bian)供油量。 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PVH098R01AD30A250000002001AB010A PVH098R01AD70B172000002001AB010A PVH098R01AJ30AAB010A PVH098R01AJ30AAB010A PVH098R01AJ30AAB01 PVH098R02AJ30B252000001AD100010A PVH098R02AJ30B2520000020010001 PVH098R02AJ30B252000002001AB010A PVH098R02AJ30E252004001001AA010A PVH098R02AJ30E252004001001AE01 PVH098R02AJ30H002000AW1001AB010A PVH098R02AJ30H002000AW2001AB010A PVH098R03AJ30A250000001AD100010A PVH098R03AJ30B252000001AD10001 PVH098R03AJ30B252000001AD1AB01 PVH098R03AJ30B252000AL1AD1AP01 PVH098R13AJ30A070000001AD1AB01 PVH098R13AJ30A250000001AD1AB01 PVH098R13AJ30A250000002001AE010A PVH098R13AJ30B162000001AD1AC010A PVH098R13AJ30B252000001AD100010A PVH098R13AJ30B252000001AD1AB01 PVH098R13AJ30E252004001AD1AA010A PVH098R13AJ30E252004001AD1AE01 PVH098R13AJ30E252004001AD1AE010A PVH098R13AJ30E252010001AD1AE01 PVH098R13AJ30E252018001AD1AE01 PVH098R13AJ30H002000AW1AD1AB01 PVH098R13AJ70B252000001AD1AE01 PVH106R01AJ30A230000001001AE010A PVH106R02AJ30A230000001001AE010A PVH106R13AJ70D230007001AC1AA010A PVH106R13AJ70D230010001AC1AA010A PVH131 PVH131L 02 322304 PVH131R13AF30A250000001001AB01 PVH131R13AF30A25000000100100010A PVH131R13AF30B25200000100100010A PVH131R13AF30B252000001001AB01 PVH131R13AF30B252000001001AB010A PVH131R13AF30B252000001001AE010A PVH131R13AF30B252000002001AB010A PVH131R13AF30D250007001001AE010A PVH131R13AF30E252004001001AA01 PVH131R13AF30E252008001001AE01 PVH131R13AF30E252015001001AE010A PVH131R13AF30H002000BD2001AB01 PVH131R13AF70B2520000010010001 PVH131R13AF70B252000001001AE01 PVH131R13AF70E252018001001AA01 PVH131R03AF30A250000001001AB010A PVH131R03AF30B2520000010010001 PVH131R03AF30B252000001AD10001 PVH131R03AF30B252000001AD1AP01 PVH131R03AF30B252000009AD1AP010A PVH131R03AF30H002000BD2002AB010A 此(ci)版權信(xin)息屬(shu)於(yu)上海(hai)維特(te)銳(rui)，欲(yu)了解更(geng)多相(xiang)關產品(pin)，請點擊：VICKERS 柱塞(sai)泵 |
