REXROTH力士樂(lè)液壓閥選型手冊(cè)

上海穎哲是力士樂(lè)液壓閥中國(guó)總經(jīng)銷(xiāo)商，REXROTH液壓閥公司大量現(xiàn)貨，力士樂(lè)電磁閥，REXROTH柱塞泵，REXROTH氣缸，力士樂(lè)比例閥我司均有銷(xiāo)售。我們專(zhuān)業(yè)代理歐美各種品牌，atos，賀德克均有代理。大量*，價(jià)格有優(yōu)勢(shì)，品質(zhì)有保障，歡迎您的咨詢。

力士樂(lè)液壓閥簡(jiǎn)介：
力士樂(lè)液壓閥（簡(jiǎn)稱(chēng)液壓閥）在液壓系統(tǒng)中的功用是通過(guò)控制調(diào)節(jié)液壓系統(tǒng)中油液的流向、壓力和流量，使執(zhí)行器及其驅(qū)動(dòng)的工作機(jī)構(gòu)獲得所需的運(yùn)動(dòng)方向、推力（轉(zhuǎn)矩）及運(yùn)動(dòng)速度（轉(zhuǎn)速）等。任何一個(gè)液壓系統(tǒng)，不論其如何簡(jiǎn)單，都不能缺少液壓閥；同一工藝目的的液壓機(jī)械設(shè)備，通過(guò)液壓閥的不同組合使用，可以組成油路結(jié)構(gòu)截然不同的多種液壓系統(tǒng)方案。因此，液壓閥是液壓技術(shù)中品種與規(guī)格多、應(yīng)用泛、的部分（元件）；一個(gè)新設(shè)計(jì)或正在運(yùn)轉(zhuǎn)的液壓系統(tǒng)，能否按照既定要求正?？煽康剡\(yùn)行，在很大程度上取決于其中所采用的各種液壓閥的性能優(yōu)劣及參數(shù)匹配是否合理 [1]  。
壓力控制閥
按用途分為溢流閥、減壓閥和順序閥。①溢流閥：能

力士樂(lè)液壓閥
控制液壓系統(tǒng)在達(dá)到調(diào)定壓力時(shí)保持恒定狀態(tài)。用于過(guò)載保護(hù)的溢流閥稱(chēng)為安全閥。當(dāng)系統(tǒng)發(fā)生故障，壓力升高到可能造成破壞的限定值時(shí)，閥口會(huì)打開(kāi)而溢流，以保證系統(tǒng)的安全。②減壓閥：能控制分支回路得到比主回路油壓低的穩(wěn)定壓力。減壓閥按它所控制的壓力功能不同，又可分為定值減壓閥（輸出壓力為恒定值）、定差減壓閥（輸入與輸出壓力差為定值）和定比減壓閥（輸入與輸出壓力間保持一定的比例）。③順序閥：能使一個(gè)執(zhí)行元件（如液壓缸、液壓馬達(dá)等）動(dòng)作以后,再按順序使其他執(zhí)行元件動(dòng)作 [2]  。

力士樂(lè)液壓閥安裝方法：
出油閥是一個(gè)單向閥，在彈簧壓力作用下，閥上部圓錐面與閥座嚴(yán)密配合，其作用是在停供時(shí)，將高壓油管與柱塞上端空腔隔絕，防止高壓油管內(nèi)的油倒流入噴油泵內(nèi)。出油閥的下部呈十字?jǐn)嗝?，既能?dǎo)向，又能通過(guò)柴油。出油閥的錐面下有一個(gè)小的圓柱面，稱(chēng)為減壓環(huán)帶，其作用是在供油終了時(shí)，使高壓油管內(nèi)的油壓迅速下降，避免噴孔處產(chǎn)生滴油現(xiàn)象。當(dāng)環(huán)帶落入閥座內(nèi)時(shí)則使上方容積很快增大，壓力迅速減小，停噴迅速。力士樂(lè)液壓閥工作時(shí)，在噴油泵凸輪軸上的凸輪與柱塞彈簧的作用下，迫使柱塞作上、下往復(fù)運(yùn)動(dòng)，從而完成泵油任務(wù)，泵油過(guò)程可分為以下三個(gè)階段。進(jìn)油過(guò)程當(dāng)凸輪的凸起部分轉(zhuǎn)過(guò)去后，在彈簧力的作用下，柱塞向下運(yùn)動(dòng)，柱塞上部空間（稱(chēng)為泵油室）產(chǎn)生真空度，當(dāng)柱塞上端面把柱塞套上的進(jìn)油孔打開(kāi)后，充滿在油泵上體油道內(nèi)的柴油經(jīng)油孔進(jìn)入泵油室，柱塞運(yùn)動(dòng)到下止點(diǎn)，進(jìn)油結(jié)束。供油過(guò)程當(dāng)凸輪軸轉(zhuǎn)到凸輪的凸起部分頂起滾[工業(yè)電器網(wǎng)-cnelc]輪體時(shí)，柱塞彈簧被壓縮，柱塞向上運(yùn)動(dòng)，燃油受壓，一部分燃油經(jīng)油孔流回噴油泵上體油腔。當(dāng)柱塞頂面遮住套筒上進(jìn)油孔的上緣時(shí)，由于柱塞和套筒的配合間隙很?。?.0015-0.0025mm）使柱塞頂部的泵油室成為一個(gè)密封油腔，柱塞繼續(xù)上升，泵油室內(nèi)的油壓迅速升高，泵油壓力出油閥彈簧力+高壓油管剩余壓力時(shí)，推開(kāi)出油閥，高壓柴油經(jīng)出油閥進(jìn)入高壓油管，通過(guò)噴油器噴入燃燒室。REXROTH柱塞泵上供油，當(dāng)上行到柱塞上的斜槽（停供邊）與套筒上的回油孔相通時(shí)，泵油室低壓油路便與柱塞頭部的中孔和徑向孔及斜槽溝通，油壓驟然下降，出油閥在彈簧力的作用下迅速關(guān)閉，停止供油。

力士樂(lè)現(xiàn)貨型號(hào)：
A10VS0100DR/31R-PPA12N00 
A10VS0100DFR1/31R-PPA12N00 
博世力士樂(lè)液壓泵Rexroth的詳細(xì)信息
A10VSO71DFR1/32R-VPB22U99S2184
A10VS045DFR1/31R-PPA12N00
A10VS0140DFRI/31R-PPB12N00
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A10VSO71DRS/32R-VPB22U99-S2184，1p
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A10VSO71DFR/31R-PPA12N00
4WRA10W30-2X/G24K4/
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A10VS028DFR1/31LPPA12N00R
A10VSO28DFR1/31R-PPA12N00
力士樂(lè)液壓閥A10A2-2.0/
4WRA10W60-2X/G24K4V
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A10VSO100DFR1/31R-PPA12NOO
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A10VSO71DFR1/31R-PPA12N00
A10VSO45DFR1/32R-PPB12N00
A10VSO71DFR1/31PRA12N00 S1648
E-A10VSO100DFR/31RPPA12N00
A10VS071DFR1/31R-PPA12N00
A10VS045DFR1/31R-PPA12N00-S032
A10VSO140DFR1/31R-PPB12N00
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LR25DB25E1X/A10
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A10VSO100DFR1/32R-PPB12N00 
A10VSO100DFR1/31R-PPA12N00
A10VSO140DFR1/31R-PPB12N00
A10VSO71DFR1/31R-PPA12N00
A10VSO71DFR1/31R-PPA12N00-S1648
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A10VSO140DFR1/31R-PPB12N00
A10VS0100DFR1/32R-VPB12N00
A10VSO100DR/31R-PPA12N00
A10VSO140DR/31R-PPB12N00
A10VSO140DFR1/31R-PPB12N00
E-A10VSO71DFR/31R-PPA12NOO
A10VS0100DFR1/32R-VPB12N00
A10VS0100DR/32R-VPB12N00
A10VS0100DFR1/31R-PPA12N00
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A10VS018DFR1/31R-PPA12N00
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A10VSO140DR/31R-PPB12N00
A10VSO71DR/31R-PPA12N00
A10VSO28DR/31R-PPA12N00
A10VSO140DRS/32R-VPB12N00
A10VSO18DR/31R-PPA12N00
A10VSO45DFR1/31R-PPA12NOO
A10VSO71DFR1/32R-VPB22U99
A10VSO28DFR1(DR)/31R-PPA12N00
A10VS0100DFR1/32R-VPB12N00
A10VSO10DR/52R-PPA14N00
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A10VS071DR/31R-PPA12
A10VSO28DFR1/31RPPA12NOO
A10VS028DFR1/31R-PPA12N00-S032
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A10VSO10DR/52R-PPA12N00
A10VS018DR/52R-PPA14N00
A10VS0100DR/32R-VPB22(12)U99(N00)
HED40A10/315=HED80A20/315
A10VSO71DFR1/31R-PPA12N00
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A10VSO018DFR1
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A10VSO71DFR1/31R-PPA12N00
A10VSO100DR/31R-PPA12N00
A10VS071DR/31R-PPA12N00 
A10VS045DR/31R-PPA12N00 / 
A10VSO100DRＧ/31R-PPA12N00
A10VSO100DRＧ/31R-PPA12N00
A10VSO100DRＧ/31R-PPA12N00
力士樂(lè)液壓閥A10VSO71DFR
力士樂(lè)液壓閥A10VSO28DFR
力士樂(lè)液壓閥A10VSO140DFR1
A10VS028DR/30R-PPA12N00
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A10VO100DFLR/31R-PSC62K01
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A10VSO100DFLR/31R-PPA12N00
A10VSO100DFLR/31R-PPA12N00
A10VSO100DR/31R-PPA12N00
A10VSO100DR/31R-PPA12N00
A10VSO71DFR1/31R-PPA12N00-S1648
A10VSO45DR/31R-PSC62K02
4WRA10W1-60-22/G24K4/ V
A10VSO140DFR1/31R-PPB12NOO
DEH16P-20-204-2WA100AL
DE16P-20-204-2WA100AL