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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)比例閥我司均有銷售。我們專業(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)嗝妫饶軐?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
A10VSO71DFR1/31R-PPA12N00
A10VSO71DFR1/31R-PPA12N00
A10VSO100DR/32R-VPB12N00
A10VSO100DR/31R-PPA12NOO
A10VS071DR/31L-PPA12N00
A10VSO71DRS/32R-VPB22U99-S2184,1p
A10VSO71DFR1/31R-PPA12N00
A10VSO71DFR/31R-PPA12N00
4WRA10W30-2X/G24K4/
A10VSO100DFR1/32R-PPB12N00
A10VSO100DFR1/31R-PPA12N00
A10VSO140DFR1/31R-PPB12N00
A10VS028DFLR/31R-PPA12N00
A10VS018DFR1/31RPPA12N00
A10VS028DFR1/31LPPA12N00R
A10VSO28DFR1/31R-PPA12N00
力士樂(lè)液壓閥A10A2-2.0/
4WRA10W60-2X/G24K4V
A10VSO100DFR1/31R-PPA12N00
A10VSO100DFR1/31R-PPA12NOO
A10VS071DR/31R-PPA12N00
A10VSO140DFR1/31R-PPB12N00
A10VSO71DFR1/31R-PPA12N00
A10VSO71DFR1/31R-PPA12N00
A10VSO45DFR1/32R-PPB12N00
A10VSO71DFR1/31PRA12N00 S1648
E-A10VSO100DFR/31RPPA12N00
A10VS071DFR1/31R-PPA12N00
A10VS045DFR1/31R-PPA12N00-S032
A10VSO140DFR1/31R-PPB12N00
A10VSO45DR/31R-PPA12N00
A10VS0100DFR1/32R-PPB12N00-S1439
A10VS0140DR/32R-VPB12N00
LR25DB25E1X/A10
A10VSO45DFR1/31R-PPA12N00
A10VS0140DFR1/31R-PPB12N00
A10VSO100DFR1/32R-PPB12N00
A10VSO100DFR1/31R-PPA12N00
A10VSO140DFR1/31R-PPB12N00
A10VSO71DFR1/31R-PPA12N00
A10VSO71DFR1/31R-PPA12N00-S1648
A10VSO45DFR/31R-PPA12N00
A10VSO28DFR1/31R-PPA12N00
A10VS0140DR/31R-PPB 12NOO
A10SO100DFE/31R-PPA12K52
A10VS071DFR1/32R-VPB22U99
4WRA10E1-60-22/G24K4/V
A10VSO28DFR1/31R-PPA12N00
A10VSO140DFR1/31R-PPB12N00
A10VSO18DFR1/31R-PPB12NOO
A10VSO71DFR1/31R-PPA12N00
A10VSO71DFR1/31R-PPA12N00
A10VSO140DR/31R-PPB12N00
A10VSO10DR/52R-PPA12N00
A10VSO28DR/31R-PPA12NOO
A10VSO28DR/31R-PPA12N00
A10VSO28DR/31R-PPA12N00
A10VSO140DR/31R-PPB12N00
A10VSO100DFR1/31R-PPA12N00
A10VSO45DFR1/31R-PPA12NOO
A10VS0100DFR1/32R-VPB12N00
A10VS018DFR1/31R-PPA12N00
A10VSO140DR/31R-PPB12N00
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
A10VSO140DR/31R-PPB12N00
A10VS0100DR/31R-PPA12N00
A10VS0100DFR1/31R-PPA12N00
A10VSO140DFR1/31R-PPB12N00
A10VSO140DR/31R-PPB12N00
A10VSO140DR/31R-PPB12N00
A10VSO140DFR1/31R-PPB12N00
A10VS0100DFR1/32R-VPB12N00
A10VS018DFR1/31R-PPA12N00
A10VS0100DR/32R-VPB12N00
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
A10VS018DFR1/31R-PPA12N00
A10VS071DFR1/32R-PPB12N00
A10VSO71DFR/31R-PPA12N00
A10VSO45DR/31R-PPA12N00
A10VS071DR/31R-PPA12N00
A10VS0100DR/32R-VPB12N00
A10VSO100DR/31R-PPA12N00
A10VS071DR/31R-PPA12
A10VSO28DFR1/31RPPA12NOO
A10VS028DFR1/31R-PPA12N00-S032
A10VSO100DFLR/31R-VPA12N00
A10VSO10DR/52R-PPA12N00
A10VS018DR/52R-PPA14N00
A10VS0100DR/32R-VPB22(12)U99(N00)
HED40A10/315=HED80A20/315
A10VSO71DFR1/31R-PPA12N00
A10VSO045DR/31R-PPA12N00
A10VSO71DR/31R-PPA12N00
A10VSO018DFR1
A10VSO100DFR1/31R-PPA12NOO
A10VS071DFR1/31R
A10VSO71DFR1/31RR-PPA12N00
A10VSO100DFR1/31R-PPA12N00
A10VSO45DFR1/31R-PPA12N00
A10VSO45DFR1/31R-PPA12N00
A10VS071DFR1/32R-PPB12N00
A10VSO71DR/31R-PPA12N00
A10VSO28DR/31R-PPA12N00
A10VSO140DFR1/31R-PPB12NOO
A10VSO140DR/31R-PPB12N00
A10VSO28DR/31R-PPA12N00
A10VSO28DFR1/31L-PSC62K02
A10VSO45DFR1/31R-PPA12N00
A10VSO45DFR1/32R-VPB12N00
A10VSO45DFR1/31R-PPA12N00
A10VSO45DFR1/31R-PPA12N00
A10VS071DR/31R-PPA12N00
A10VSO18DR/31R-VKC62K01
A10VSO100DR/31R-PPA12N00
A10VSO18DFR1/31R-VPA12N00
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
A10VS071DFR1/31R-PPA12N00-S1648
A10VO100DFLR/31R-PSC62K01
A10VO100DFR1/32R-VPB12NOO
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