美國(guó)VICKERS變量柱塞泵PVH系列代理

VICKERS柱塞泵工作原理：

    VICKERS柱塞泵是液壓系統(tǒng)的一個(gè)重要裝置。它依靠柱塞在缸體中往復(fù)運(yùn)動(dòng)，使密封工作容腔的容積發(fā)生變化來實(shí)現(xiàn)吸油、壓油。柱塞在缸體中要往復(fù)運(yùn)動(dòng)，因此，它的運(yùn)動(dòng)量很大，在工作過程中需要承受巨大的摩擦力，因此，柱塞要求高的硬度、耐磨性和使用壽命以及高的精度等。通過研究，采用淬火熱處理可以滿足柱塞的技術(shù)要求。
 
美國(guó)威格士柱塞泵的產(chǎn)品分類

1.軸向柱塞泵
軸向柱塞泵是活塞或柱塞的往復(fù)運(yùn)動(dòng)方向與缸體中心軸平行的柱塞泵。軸向柱塞泵是利用與傳動(dòng)軸平行的柱塞在柱塞孔內(nèi)往復(fù)運(yùn)動(dòng)所產(chǎn)生的容積變化來進(jìn)行工作的。由于柱塞和柱塞孔都是圓形零件，加工時(shí)可以達(dá)到很高的精度配合，因此容積效率高，運(yùn)轉(zhuǎn)平穩(wěn)，流量均勻性好，噪聲低，工作壓力高等優(yōu)點(diǎn)，但對(duì)液壓油的污染較敏感，結(jié)構(gòu)較復(fù)雜，造價(jià)較高。
2.直軸斜盤式柱塞泵
直軸斜盤式柱塞泵分為壓力供油型的自吸油型兩種。壓力供油型液壓泵大都采用有氣壓的油箱，也有液壓泵本身帶有補(bǔ)油分泵向液壓泵進(jìn)油口提供壓力油的。自吸油型液壓泵的自吸油能力很強(qiáng)，無需外力供油。靠氣壓供油的液壓油箱，在每次啟動(dòng)機(jī)器后，必須等液壓漬箱達(dá)到使用氣壓后，才能操作機(jī)械。如液壓油箱的氣壓不足時(shí)就擔(dān)任機(jī)器，會(huì)對(duì)液壓泵內(nèi)的與滑鞭造成拉脫現(xiàn)象，出會(huì)造成泵體內(nèi)回程板與壓板的非正常磨損。
3.液壓柱塞泵
液壓柱塞泵靠氣壓供油的液壓油箱，在每次啟動(dòng)機(jī)器后，必須等液壓漬箱達(dá)到使用氣壓后，才能操作機(jī)械。直軸斜盤式柱塞泵分為壓力供油型的自吸油型兩種。壓力供油型液壓泵大都采用有氣壓的油箱，也有液壓泵本身帶有補(bǔ)油分泵向液壓泵進(jìn)油口提供壓力油的。自吸油型液壓泵的自吸油能力很強(qiáng)，無需外力供油。對(duì)于自吸油型柱塞泵，液壓油箱內(nèi)的油液不得低于油標(biāo)下限，要保持足夠數(shù)量的液壓油。液壓油的清潔度越高，液壓泵的使用壽命越長(zhǎng)。
4.徑向柱塞泵
徑向柱塞泵可分為閥配流與軸配流兩大類。閥配流徑向柱塞泵存在故障率高、效率低等缺點(diǎn)。上70、80年代發(fā)展的軸配流徑向柱塞泵克服了閥配流徑向柱塞泵的不足。由于徑向泵結(jié)構(gòu)上的特點(diǎn)，陜定了軸配流徑向柱塞泵比軸向柱塞泵耐沖擊、壽命長(zhǎng)、控制精度高。變量行程短泵的變量是在變量柱塞和限位柱塞作用下，改變定子的偏心距實(shí)現(xiàn)的，而定于的zui大偏心距為 5—9mm（根據(jù)排量大小不同），變量行程很短。且變量機(jī)構(gòu)設(shè)計(jì)為高壓操縱，由控制閥進(jìn)行控制。故該泵的響應(yīng)速度快。徑向結(jié)構(gòu)設(shè)計(jì)克服了如軸向柱塞泵滑靴偏磨的問題。使其抗沖擊能力大幅度提高。

VICKERS變量柱塞泵，可以串聯(lián)齒輪泵。由齒輪泵與柱塞泵共同構(gòu)成的油源系統(tǒng)，可以控制整體的功率曲線，使得恒功率控制不再局限于對(duì)單個(gè)油泵的控制，而是整個(gè)系統(tǒng)。

 VICKERS變量柱塞泵工作狀態(tài)：

    VICKERS變量柱塞泵其吸入和排出閥都是單向閥。當(dāng)柱塞外拉時(shí)，工作室內(nèi)壓力降低，出口閥關(guān)閉，低于進(jìn)口壓力時(shí)，進(jìn)口閥打開，液體進(jìn)入；柱塞內(nèi)推時(shí)，工作室壓力升高，進(jìn)口閥關(guān)閉，高于出口壓力時(shí)，出口閥打開，液體排出。 帶滑靴結(jié)構(gòu)的軸向柱塞泵是目前使用zui廣泛的軸向柱塞泵，安放在缸體中的柱塞通過滑靴與斜盤相接觸，當(dāng)傳動(dòng)軸帶動(dòng)缸體旋轉(zhuǎn)時(shí)，斜盤將柱塞從缸體中拉出或推回，完成吸排油過程。柱塞與缸孔組成的工作容腔中的油液通過配油盤分別與泵的吸、排油腔相通。變量機(jī)構(gòu)用來改變斜盤的傾角，通過調(diào)節(jié)斜盤的傾角可改變泵的排量。

    VICKERS變量柱塞泵柱塞往復(fù)運(yùn)動(dòng)總行程L是不變的，由凸輪的升程決定。柱塞每循環(huán)的供油量大小取決于供油行程,供油行程不受凸輪軸控制是可變的。供油開始時(shí)刻不隨供油行程的變化而變化。轉(zhuǎn)動(dòng)柱塞可改變供油終了時(shí)刻，從而改變供油量。

美國(guó)威格士變量柱塞泵PVH系列:

PVH057R02AA10AAB010A

PVH057R02AA10A1400000010020001

PVH057R02AA10A2500000010010001

PVH057R02AA10A250000001001AB01

PVH057R02AA10A250000001001AE010A

PVH057R01AA10A250000002001AE01

PVH057R01AA10A250000002001AB010A

PVH057R01AA10A250000001AE1AB010A  

PVH057R01AA10A250000002001AB01

PVH057R01AA10A250000001001AE01

PVH057R01AA10A250000001AE10001

PVH057R01AA10A250000001AE1AB01

PVH057R01AA10A250000001AE1AE010A

PVH057R01AA10H002000AW1AE1AB01

PVH057R01AA10B142000001AE1AB010A

PVH057R01AA10B162000001AE1AC01

PVH057R01AA10B162000002001AF01

PVH057R01AA10B25000001001AE010A

PVH057R01AA10B2520000010010001

PVH057R01AA10B252000001001AB01

PVH057R01AA10B252000001001AE01

PVH057R01AA10B252000001AE1AB01

PVH057R01AA10B252000001AN1AB010A

PVH057R01AA10B252000002001AB01

PVH057R01AA10D250004001001AE01

PVH057R01AA10E252004001001AA010A

PVH057R01AA10E252004001001AE01

PVH057R01AA10E252004001AE1AA010A

PVH057R01AA10E252008001001AE010A

PVH057R01AA10H002000AW1001AB010A

PVH057R02AA10A250000001AE10001

PVH057R02AA10A250000002001AB01

PVH057R01AA10A250000001AN1AB010A

PVH057R01AA10H002000AW2001AB01

PVH057R01AA50A250000001001AB01

PVH057R01AA50A250000001AE1AB01

PVH057R01AA50B252000001001AB01

PVH057R01AA50G002000AW1001AB000A

PVH057R01AA50H002000AW1001AB010A

PVH057R01AB10A250000002001AE010A

PVH057R01AB10A250000002001AE010A  

PVH057R02AA10B162000001AE1AC01

PVH057R02AA10B25200000100100010A

PVH057R02AA10B252000001001AA01

PVH057R02AA10B252000001001AB01

PVH057R02AA10B252000001002AB010A

PVH057R02AA10B252000001AE10001

PVH057R02AA10B252000001AE1AA010A

PVH057R02AA10B252000001AE1AB01

PVH057R02AA10B252000001AK100010A

PVH057R02AA10B252000001AN10001

PVH057R02AA10B252000002001AA01

PVH057R02AA10H002000AW2001AB010A

PVH057R02AB10B252000001001AA010A

PVH057R0NAB10A250000002001AB01

PVH057R51AA10E252004001001AE010A

PVH057R51AA10E252004001AE1AE010A

PVH057R52AA10E252004001AE1AE010A

PVH063R01AA10A230000001001AE010A

PVH074L01AA10A2500000020010001

PVH074L01AA10B2520000010010001

PVH074L02AA10A00010A

PVH074L02AA10AAA01

PVH074L02AA10A2500000010010001

PVH074L02AA10A250000001001AB01

PVH074L02AA10B252000001001AA01

PVH074L02AA10B252000001001AA010A         

PVH074L02AA10B252000001AF100010A

PVH074L02AA10B252000001AF1AA010A

PVH074L02AA10B252000AL1001AP01

PVH074L02AA10E252015001001AA01

PVH074L03AA10A250000001AF100010A

PVH074L03AA10B252000001AF10001

PVH074L03AA10E252012001AF1AA010A

PVH074L03AA50E252012001AF1AA010A

PVH074L13AA10A250000001AF100010A

PVH074L13AA10B202000001AL1AE010A

PVH074L13AA10B202000001AL1AB010A 

PVH074R01AA10D250012001001AE010A

PVH074R01AA10D250014001001AA01

PVH074R01AA10E212007001001AE010A

PVH074R01AA10E252004001001AA010A

PVH074R01AA10E252009001001AE01

PVH074R01AA10E252014001001AE01

PVH074R01AA10E252018001001AE010A

PVH074R01AA10H002000AW1001AB01

PVH074R01AA10H002000AW2001AB01

PVH074R01AA50A250000001001AA010A

PVH074R01AA50A250000001001AB01

PVH074R01AA50B252000001001AB01

PVH074R01AA50B252000001001AE01

PVH074R01AA50B252000002001AB01

PVH074R01AA50H002000AW1001AB010A

PVH074R01AA60E252009001001AE01

PVH074R01AB10A25000000201AE010A

PVH074R01AB10A250000002001AE010A

PVH074R01AB10A250000002001AE010A

PVH074R01AB50H002000AS1001AB01

PVH074R02AA10A2500000010010001

PVH074R02AA10A250000001001AB010A

PVH074R02AA10A250000001001AE010A

PVH074R02AA10A250000001AV1AE010A

PVH074R02AA10A250000002001AE010A

PVH074R02AA10B162000001001AC01

PVH074R02AA10B2520000010010001

PVH074R02AA10B252000001001AB01

PVH074R02AA10B2520000010020001

PVH074R02AA10B252000001AF100010A

PVH074R02AA10B252000001AF1AA01

PVH074R01AA10AAB01

PVH074R01AA10AAC010A

PVH074R01AA10AAB010A

PVH074R01AA10A140000001001AC010A

PVH074R01AA10A140000002001AF01

PVH074R01AA10A2500000010010001

PVH074R01AA10A250000001001AB010A

PVH074R01AA10A250000001001AE01

PVH074R01AA10A250000001001AE010A

PVH074R01AA10A250000002001AB010A

PVH074R01AA10A250000002001AB010A

PVH074R01AA10B162000001001AC01

PVH074R01AA10B162000002001AF01

PVH074R01AA10B2520000010010001

PVH074R01AA10B252000001001AB01

PVH074R01AA10B252000001001AE01

PVH074R01AA10B25200000200100010A

PVH074R01AA10B252000002001AB01

PVH074R01AA10D250004001001AE01

PVH074R02AA10B2520000020010001

PVH074R02AA10B252000AL1002AP01

PVH074R02AA10H002000AW1001AB010A

PVH074R03AA10A250000001AF100010A

PVH074R03AA10A250000001AF1AB010A 

PVH074R03AA10B252000001AF1AB01

PVH074R03AA10B252000001AP1AA010A

PVH074R0NAB10AAF01

PVH074R0NAB10A250000001001AE010A

PVH074R0NAB10A250000002001AE01

PVH074R13AA10A140000001AF1AC010A

PVH074R13AA10A160000001AF1AC01

PVH074R13AA10A250000001AF1AB01

PVH074R13AA10A250000001AF1AB010A

PVH074R13AA10B252000001AF100010A

PVH074R13AA10B162000001AF1AC01

PVH074R13AA10B252000001AF1AB01

PVH074R13AA10B252000001AF1AB010A 

PVH074R13AA10D200010001AF1AE010A

PVH074R13AA10E252004001AF1AA01

PVH074R13AA10H002000AW1AF1AB01

PVH074R52AA10A25000000100100010A

PVH081R01AA10AAC010A

PVH081R01AA10A150000002001AC01

PVH081R01AA10A230000001001AE010A

PVH098L01AJ30A25000000100100010A

PVH098L01AJ30A2500000020010001

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PVH098L01AJ30B2520000010010001

PVH098R01AJ30A140000002001AF01

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PVH098R01AJ30B162000002001AF010A

PVH098R01AJ30B2520000010010001

PVH098R01AJ30B252000001001AA010A

PVH098R01AJ30B252000001001AB010A

PVH098R01AJ30B25200000100200010A

PVH098R01AJ30B252000001001AB010A

PVH098R01AJ30B252000002001AB01

PVH098R01AJ30D250004001001AE010A

PVH098R01AJ30D250010001001AE010A

PVH098R01AJ30E252009001001AE01

PVH098R01AJ30E252015001001AE01

PVH098R01AJ30A250000001001AB01

PVH098R01AJ30E252020001001AE010A

PVH098R01AJ30H002000AW1001AB01

PVH098R01AJ30H002000AW2001AB010A

PVH098R01AJ70A250000001001AB01

PVH098R01AJ70A250000001001AB010A  

PVH098R01AJ70A250000002001AB010A

PVH098R01AJ70B252000001001AB010A

PVH098R01AJ70B252000001001AE01

PVH098R01AJ70E252004001001AE01

PVH098R01AJ70H002000AW1001AB010A

PVH098R01AJ30A250000001001AB010A

PVH098R01AJ30A250000001001AR010A

PVH098R01AJ30A250000001003AB010A

PVH098R01AJ30A250000001001AB010A

PVH098R01AJ30A2500000020010001

PVH098R01AJ30A250000002001AB010A

PVH098R01AJ30A250000002001AB010A

PVH098R02AJ30AAB010A

PVH098R02AJ30AAE010A

PVH098R02AJ30A2500000010010001

PVH098R02AJ30A250000001001AB01

PVH098R02AJ30A2500000020010001

PVH098R02AJ30B25200000100100010A

PVH098R02AJ30B252000001001AA01

PVH098R02AJ30B252000001001AB01

PVH098R02AJ30B252000001001AP010A

PVH098L01AJ30B252000001001AB01

PVH098L02AJ30A25000000100100010A

PVH098L02AJ30A250000001002AA010A

PVH098L02AJ30B172000001AD20001

PVH098L02AJ30B25200000100100010A

PVH098L02AJ30B252000001001AA010A

PVH098L02AJ30B252000001001AP010A

PVH098L02AJ30B25200000100200010A

PVH098L02AJ30B252000001AD10001

PVH098L02AJ30B2520000020010001

PVH098L02AJ30B252000AL1001AP01

PVH098L02AJ30E252015001001AA010A

PVH098L03AJ30A250000001AD1AA01

PVH098L03AJ30B252000001AD10001

PVH098L03AJ30B252000001AD1AP010A

PVH098L03AJ30B252000001AM10001

PVH098L03AJ30B252000AL1AD2AP01

PVH098L13AJ30E252004001AD1AA01

PVH098L53AJ30B252000001AD2AA010A

PVH098QIC RSF 1S 10 C25 31

PVH098R01AD30A250000001001AB01

PVH098R01AD30A250000001001AB010A

PVH098R01AD30A250000001001AE010A

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

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