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    PVV21-1X/040-018RA15RRMB現(xiàn)貨

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    PVV21-1X/040-018RA15RRMB現(xiàn)貨

     

    經(jīng)營產(chǎn)品:

    閥類:電磁閥、換向閥、單向閥、溢流閥、減壓閥、平衡

    閥、插裝閥、比例閥等

    泵類:齒輪泵、柱塞泵、葉片泵等

    承諾:保證原裝*,假一賠十 量大jiage好商量!!

    武穴黎翔機(jī)電設(shè)備有限公司REXROTH力士樂銷售部

    詢價(jià):陳

    廣泛應(yīng)用于鋼鐵、冶金、鋁行業(yè)、石油化工、航天、船舶制造、煤炭、水泥、電力、汽車、工程機(jī)械、食品、藥業(yè)、林業(yè)、紡織、皮革、造紙等行業(yè)領(lǐng)域

    葉片泵的管理要點(diǎn)除需防干轉(zhuǎn)和過載、防吸入空氣和吸入真空度過大外,還應(yīng)注意:
    1.泵轉(zhuǎn)向改變,則其吸排方向也改變?nèi)~片泵都有規(guī)定的轉(zhuǎn)向,不允許反。因?yàn)檗D(zhuǎn)子葉槽有傾斜,葉片有倒角,葉片底部與排油腔通,配油盤上的節(jié)流槽和吸、排口是按既定轉(zhuǎn)向設(shè)計(jì)。可逆轉(zhuǎn)的葉片泵必須專門設(shè)計(jì)。
    2.葉片泵裝配 配油盤與定子用定位銷正確定位,葉片、轉(zhuǎn)子、配油盤都不得裝反,定子內(nèi)表面吸入?yún)^(qū)部分zui易磨損,必要時(shí)可將其翻轉(zhuǎn)安裝,以使原吸入?yún)^(qū)變?yōu)榕懦鰠^(qū)而繼續(xù)使用。
    3.拆裝 注意工作表面清潔,工作時(shí)油液應(yīng)很好過濾。
    4. 葉片在葉槽中的間隙太大會(huì)使漏泄增加,太小則葉片不能自由伸縮,會(huì)導(dǎo)致工作失常。
    5.葉片泵的軸向間隙 對ηv影響很大。
    1)小型泵-0.015~0.03mm
    2)中型泵-0.02~0.045mm
    6.油液的溫度和粘度 一般不宜超過55℃,粘度要求在17~37mm2/s之間。粘度太大則吸油困難;粘度太小則漏泄嚴(yán)重。


    一、單作用葉片泵的工作原理
    泵由轉(zhuǎn)子1、定子2、葉片3、配油盤和端蓋等部件所組成。定子的內(nèi)表面是圓柱形孔。轉(zhuǎn)子和定子之間存在著偏心。葉片在轉(zhuǎn)子的槽內(nèi)可靈活滑動(dòng),在轉(zhuǎn)子轉(zhuǎn)動(dòng)時(shí)的離心力以及通入葉片根部壓力油的作用下,葉片頂部貼緊在定子內(nèi)表面上,于是兩相鄰葉片、配油盤、定子和轉(zhuǎn)子間便形成了一個(gè)個(gè)密封的工作腔。當(dāng)轉(zhuǎn)子按逆時(shí)針方向旋轉(zhuǎn)時(shí),圖右側(cè)的葉片向外伸出,密封工作腔容積逐漸增大,產(chǎn)生真空,于是通過吸油口6和配油盤5上窗口將油吸入。而在圖的左側(cè)。葉片往里縮進(jìn),密封腔的容積逐漸縮小,密封腔中的油液經(jīng)配油盤另一窗口和壓油口1被壓出而輸出到系統(tǒng)中去。這種泵在轉(zhuǎn)子轉(zhuǎn)一轉(zhuǎn)過程中,吸油壓油各一次,故稱單作用泵。轉(zhuǎn)子受到徑向液壓不平衡作用力,故又稱非平衡式泵,其軸承負(fù)載較大。改變定子和轉(zhuǎn)子間的偏心量,便可改變泵的排量,故這種泵都是變量泵。
    二、雙作用葉片泵的工作原理
    它的作用原理和單作用葉片泵相似,不同之處只在于定子表面是由兩段長半徑圓弧、兩段短半徑圓弧和四段過渡曲線八個(gè)部分組成,且定子和轉(zhuǎn)子是同心的。在圖示轉(zhuǎn)子順時(shí)針方向旋轉(zhuǎn)的情況下,密封工作腔的容積在左上角和右下角處逐漸增大,為吸油區(qū),在左下角和右上角處逐漸減小,為壓油區(qū);吸油區(qū)和壓油區(qū)之間有一段封油區(qū)把它們隔開。這種泵的轉(zhuǎn)子每轉(zhuǎn)一轉(zhuǎn),每個(gè)密封工作腔完成吸油和壓油動(dòng)作各兩次,所以稱為雙作用葉片泵。泵的兩個(gè)吸油區(qū)和兩個(gè)壓油區(qū)是徑向?qū)ΨQ的,作用在轉(zhuǎn)子上的液壓力徑向平衡,所以又稱為平衡式葉片泵。
    雙作用葉片泵的瞬時(shí)流量是脈動(dòng)的,當(dāng)葉片數(shù)為4的倍數(shù)時(shí)脈動(dòng)率小。為此,雙作用葉片泵的葉片數(shù)一般都取12或16。德國REXROTH力士樂PVV/PVQ雙聯(lián)葉片泵系列
    PVV 和 PVQ 泵是定排量葉片泵。
          在驅(qū)動(dòng)軸驅(qū)動(dòng)軸 (1) 的齒上安裝有轉(zhuǎn)子 (2),它在定子環(huán) (3) 內(nèi)回轉(zhuǎn)。葉片 (4) 安裝在轉(zhuǎn)子槽內(nèi),轉(zhuǎn)子轉(zhuǎn)動(dòng)時(shí)靠離心力使葉片壓在定子環(huán)的內(nèi)表面。排油腔的端面由配油盤 (5) 密封。由于定子環(huán)是雙偏心結(jié)構(gòu),因此形成對稱布置的兩個(gè)吸油區(qū)和兩個(gè)壓油區(qū),因此傳動(dòng)軸的徑向液壓力相互平衡而卸載。軸僅傳遞驅(qū)動(dòng)轉(zhuǎn)矩。在吸油區(qū),葉片部分地卸荷。這能減少磨損和獲得高效率。取下端蓋 (6),可以更換泵芯 (由轉(zhuǎn)子、葉片、定子環(huán)和配油盤組成),而不必從鐘形罩上卸下泵體 (7)。這樣就能迅速地對泵進(jìn)行維護(hù)和修理。
         由于 PVQ 泵的設(shè)計(jì)結(jié)構(gòu),使其特別適用于行走機(jī)械應(yīng)用。由于配油盤的特殊結(jié)構(gòu),而能夠補(bǔ)償轉(zhuǎn)子體的熱膨脹和能夠?qū)ν蝗坏膲毫ψ兓鸬降挚棺饔谩Mㄟ^將配油盤分成柔性盤(7) 和端蓋 (8) 而形成反向壓力腔 (9),以平衡在擠壓器中的壓力。這就保證了轉(zhuǎn)子和柔性盤之間的間隙,因而保證泵擁有的容積效率。
         將第二個(gè)泵芯裝到它們的共同的軸上,便組成 PVV 和 PVQ雙聯(lián)泵。中間泵體 (10) 的公區(qū)吸油口,是泵的進(jìn)油口。出油則分別通過各泵芯。前泵芯的壓油口在泵體法蘭上,而后泵芯的壓油口在端蓋上。
        兩個(gè)泵中的大泵,總是在泵的法蘭端。同樣機(jī)型規(guī)格的泵芯,不能組成雙聯(lián)泵。
    常用型號
    PVV21-1X/040-018RA15DDMB
    PVV21-1X/040-027RA15DDMB
    PVV21-1X/040-036RA15DDMB
    PVV21-1X/040-040RA15DDMB
    PVV21-1X/045-018RA15DDMB
    PVV21-1X/045-027RA15DDMB
    PVV21-1X/045-036RA15DDMB
    PVV21-1X/045-040RA15DDMB
    PVV21-1X/055-018RA15DDMB
    PVV21-1X/055-027RA15DDMB
    PVV21-1X/055-036RA15DDMB
    PVV21-1X/055-040RA15DDMB
    PVV21-1X/055-046RA15DDMB
    PVV21-1X/060-018RA15DDMB
    PVV21-1X/060-027RA15DDMB
    PVV21-1X/060-036RA15DDMB
    PVV21-1X/060-040RA15DDMB
    PVV21-1X/060-046RA15DDMB
    PVV21-1X/068-018RA15DDMB
    PVV21-1X/068-027RA15DDMB
    PVV21-1X/068-036RA15DDMB
    PVV21-1X/068-040RA15DDMB
    PVV21-1X/068-046RA15DDMB
    PVV41-1X/069-018RA15DDMC
    PVV41-1X/069-027RA15DDMC
    PVV41-1X/069-036RA15DDMC
    PVV41-1X/069-040RA15DDMC
    PVV41-1X/069-046RA15DDMC
    PVV41-1X/082-018RA15DDMC
    PVV41-1X/082-027RA15DDMC
    PVV41-1X/082-036RA15DDMC
    PVV41-1X/082-040RA15DDMC
    PVV41-1X/082-046RA15DDMC
    PVV41-1X/098-018RA15DDMC
    PVV41-1X/098-027RA15DDMC
    PVV41-1X/098-036RA15DDMC
    PVV41-1X/098-040RA15DDMC
    PVV41-1X/098-046RA15DDMC
    PVV41-1X/113-018RA15DDMC
    PVV41-1X/113-027RA15DDMC
    PVV41-1X/113-036RA15DDMC
    PVV41-1X/113-040RA15DDMC
    PVV41-1X/113-046RA15DDMC
    PVV41-1X/122-018RA15DDMC
    PVV41-1X/122-027RA15DDMC
    PVV41-1X/122-036RA15DDMC
    PVV41-1X/122-040RA15DDMC
    PVV41-1X/122-046RA15DDMC
    PVV42-1X/069-040RA15DDMC
    PVV42-1X/069-045RA15DDMC
    PVV42-1X/069-055RA15DDMC
    PVV42-1X/069-060RA15DDMC
    PVV42-1X/069-068RA15DDMC
    PVV42-1X/082-040RA15DDMC
    PVV42-1X/082-045RA15DDMC
    PVV42-1X/082-055RA15DDMC
    PVV42-1X/082-060RA15DDMC
    PVV42-1X/082-068RA15DDMC
    PVV42-1X/098-040RA15DDMC
    PVV42-1X/098-045RA15DDMC
    PVV42-1X/098-055RA15DDMC
    PVV42-1X/098-060RA15DDMC
    PVV42-1X/098-068RA15DDMC
    PVV42-1X/113-040RA15DDMC
    PVV42-1X/113-045RA15DDMC
    PVV42-1X/113-055RA15DDMC
    PVV42-1X/113-060RA15DDMC
    PVV42-1X/113-068RA15DDMC
    PVV42-1X/122-040RA15DDMC
    PVV42-1X/122-045RA15DDMC
    PVV42-1X/122-055RA15DDMC
    PVV42-1X/122-060RA15DDMC
    PVV42-1X/122-068RA15DDMC
    PVV51-1X/139-018RA15DDMC
    PVV51-1X/139-027RA15DDMC
    PVV51-1X/139-036RA15DDMC
    PVV51-1X/139-040RA15DDMC
    PVV51-1X/139-046RA15DDMC
    PVV51-1X/154-018RA15DDMC
    PVV51-1X/154-027RA15DDMC
    PVV51-1X/154-036RA15DDMC
    PVV51-1X/154-040RA15DDMC
    PVV51-1X/154-046RA15DDMC
    PVV51-1X/162-018RA15DDMC
    PVV51-1X/162-027RA15DDMC
    PVV51-1X/162-036RA15DDMC
    PVV51-1X/162-040RA15DDMC
    PVV51-1X/162-046RA15DDMC
    PVV51-1X/183-018RA15DDMC
    PVV51-1X/183-027RA15DDMC
    PVV51-1X/183-036RA15DDMC
    PVV51-1X/183-040RA15DDMC
    PVV51-1X/183-046RA15DDMC
    PVV51-1X/193-018RA15DDMC
    PVV51-1X/193-027RA15DDMC
    PVV51-1X/193-036RA15DDMC
    PVV51-1X/193-040RA15DDMC
    PVV51-1X/193-046RA15DDMC
    PVV52-1X/139-040RA15DDMC
    PVV52-1X/139-045RA15DDMC
    PVV52-1X/139-055RA15DDMC
    PVV52-1X/139-060RA15DDMC
    PVV52-1X/139-068RA15DDMC
    PVV52-1X/154-040RA15DDMC
    PVV52-1X/154-045RA15DDMC
    PVV52-1X/154-055RA15DDMC
    PVV52-1X/154-060RA15DDMC
    PVV52-1X/154-068RA15DDMC
    PVV52-1X/162-040RA15DDMC
    PVV52-1X/162-045RA15DDMC
    PVV52-1X/162-055RA15DDMC
    PVV52-1X/162-060RA15DDMC
    PVV52-1X/162-068RA15DDMC
    PVV52-1X/183-040RA15DDMC
    PVV52-1X/183-045RA15DDMC
    PVV52-1X/183-055RA15DDMC
    PVV52-1X/183-060RA15DDMC
    PVV52-1X/183-068RA15DDMC
    PVV52-1X/193-040RA15DDMC
    PVV52-1X/193-045RA15DDMC
    PVV52-1X/193-055RA15DDMC
    PVV52-1X/193-060RA15DDMC
    PVV52-1X/193-068RA15DDMC
    PVV54-1X/139-069RA15DDMC
    PVV54-1X/139-082RA15DDMC
    PVV54-1X/139-098RA15DDMC
    PVV54-1X/139-113RA15DDMC
    PVV54-1X/139-122RA15DDMC
    PVV54-1X/154-069RA15DDMC
    PVV54-1X/154-082RA15DDMC
    PVV54-1X/154-098RA15DDMC
    PVV54-1X/154-113RA15DDMC
    PVV54-1X/154-122RA15DDMC
    PVV54-1X/162-069RA15DDMC
    PVV54-1X/162-082RA15DDMC
    PVV54-1X/162-098RA15DDMC
    PVV54-1X/162-113RA15DDMC
    PVV54-1X/162-122RA15DDMC
    PVV54-1X/183-069RA15DDMC
    PVV54-1X/183-082RA15DDMC
    PVV54-1X/183-098RA15DDMC
    PVV54-1X/183-113RA15DDMC
    PVV54-1X/183-122RA15DDMC
    PVV54-1X/193-069RA15DDMC
    PVV54-1X/193-082RA15DDMC
    PVV54-1X/193-098RA15DDMC
    PVV54-1X/193-113RA15DDMC
    PVV54-1X/193-122RA15DDMC


    PVV21-1X/040-018RB15DDMB
    PVV21-1X/040-027RB15DDMB
    PVV21-1X/040-036RB15DDMB
    PVV21-1X/040-040RB15DDMB
    PVV21-1X/045-018RB15DDMB
    PVV21-1X/045-027RB15DDMB
    PVV21-1X/045-036RB15DDMB
    PVV21-1X/045-040RB15DDMB
    PVV21-1X/055-018RB15DDMB
    PVV21-1X/055-027RB15DDMB
    PVV21-1X/055-036RB15DDMB
    PVV21-1X/055-040RB15DDMB
    PVV21-1X/055-046RB15DDMB
    PVV21-1X/060-018RB15DDMB
    PVV21-1X/060-027RB15DDMB
    PVV21-1X/060-036RB15DDMB
    PVV21-1X/060-040RB15DDMB
    PVV21-1X/060-046RB15DDMB
    PVV21-1X/068-018RB15DDMB
    PVV21-1X/068-027RB15DDMB
    PVV21-1X/068-036RB15DDMB
    PVV21-1X/068-040RB15DDMB
    PVV21-1X/068-046RB15DDMB
    PVV41-1X/069-018RB15DDMC
    PVV41-1X/069-027RB15DDMC
    PVV41-1X/069-036RB15DDMC
    PVV41-1X/069-040RB15DDMC
    PVV41-1X/069-046RB15DDMC
    PVV41-1X/082-018RB15DDMC
    PVV41-1X/082-027RB15DDMC
    PVV41-1X/082-036RB15DDMC
    PVV41-1X/082-040RB15DDMC
    PVV41-1X/082-046RB15DDMC
    PVV41-1X/098-018RB15DDMC
    PVV41-1X/098-027RB15DDMC
    PVV41-1X/098-036RB15DDMC
    PVV41-1X/098-040RB15DDMC
    PVV41-1X/098-046RB15DDMC
    PVV41-1X/113-018RB15DDMC
    PVV41-1X/113-027RB15DDMC
    PVV41-1X/113-036RB15DDMC
    PVV41-1X/113-040RB15DDMC
    PVV41-1X/113-046RB15DDMC
    PVV41-1X/122-018RB15DDMC
    PVV41-1X/122-027RB15DDMC
    PVV41-1X/122-036RB15DDMC
    PVV41-1X/122-040RB15DDMC
    PVV41-1X/122-046RB15DDMC
    PVV42-1X/069-040RB15DDMC
    PVV42-1X/069-045RB15DDMC
    PVV42-1X/069-055RB15DDMC
    PVV42-1X/069-060RB15DDMC
    PVV42-1X/069-068RB15DDMC
    PVV42-1X/082-040RB15DDMC
    PVV42-1X/082-045RB15DDMC
    PVV42-1X/082-055RB15DDMC
    PVV42-1X/082-060RB15DDMC
    PVV42-1X/082-068RB15DDMC
    PVV42-1X/098-040RB15DDMC
    PVV42-1X/098-045RB15DDMC
    PVV42-1X/098-055RB15DDMC
    PVV42-1X/098-060RB15DDMC
    PVV42-1X/098-068RB15DDMC
    PVV42-1X/113-040RB15DDMC
    PVV42-1X/113-045RB15DDMC
    PVV42-1X/113-055RB15DDMC
    PVV42-1X/113-060RB15DDMC
    PVV42-1X/113-068RB15DDMC
    PVV42-1X/122-040RB15DDMC
    PVV42-1X/122-045RB15DDMC
    PVV42-1X/122-055RB15DDMC
    PVV42-1X/122-060RB15DDMC
    PVV42-1X/122-068RB15DDMC
    PVV51-1X/139-018RB15DDMC
    PVV51-1X/139-027RB15DDMC
    PVV51-1X/139-036RB15DDMC
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    PVV54-1X/183-098LB15DDMC
    PVV54-1X/183-113LB15DDMC
    PVV54-1X/183-122LB15DDMC
    PVV54-1X/193-069LB15DDMC
    PVV54-1X/193-082LB15DDMC
    PVV54-1X/193-098LB15DDMC
    PVV54-1X/193-113LB15DDMC
    PVV54-1X/193-122LB15DDMC

     

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