詳細(xì)介紹
德國力士樂REXROTH柱塞泵的工作原理,軸向柱塞泵由配流盤、缸體(轉(zhuǎn)子)、柱塞和斜盤等主要零件組成。在配流盤上開有兩個(gè)弧形溝槽,分別與泵的吸、壓油口連通,形成吸油腔和壓油腔。斜盤、配流盤均與泵體相固定,柱塞在彈簧的作用下以球形端頭與斜盤接觸。兩個(gè)弧形溝槽彼此隔開,保持一定的密封性。斜盤相對(duì)于缸體的夾角為γ。原動(dòng)機(jī)通過傳動(dòng)軸帶動(dòng)缸體旋轉(zhuǎn),柱塞就在柱塞孔內(nèi)作軸向往復(fù)滑動(dòng)。處于π~2π范圍內(nèi)的柱塞向外伸出,使其底部的密封容積增大,將油吸入;處于0~π范圍內(nèi)的柱塞向缸體內(nèi)壓入,使其底部的密封容積減小,把油壓往系統(tǒng)中。
德國力士樂REXROTH柱塞泵,力士樂柱塞泵,德國rexroth柱塞泵由傳動(dòng)軸1帶動(dòng)缸體4旋轉(zhuǎn),斜盤2和配油盤5是固定不動(dòng)的。柱塞3均布于缸體4內(nèi), 柱塞的頭部靠機(jī)械裝置或在低壓油作用下緊壓在斜盤上。斜盤法線和缸體軸線的夾角為γ。當(dāng)傳動(dòng)軸按圖示方向旋轉(zhuǎn)時(shí),柱塞一方面隨缸體轉(zhuǎn)動(dòng),另一方面,在缸體內(nèi)作往復(fù)運(yùn)動(dòng)。顯然,柱塞相對(duì)缸體左移時(shí)工作容腔是壓油狀態(tài),油液經(jīng)配油盤的吸油口a吸入;柱塞相對(duì)缸體右移時(shí)工作容腔是壓油狀態(tài),油液從配油盤的壓油口b壓出。缸體每轉(zhuǎn)一周,每個(gè)柱塞完成吸、壓油一次。
如果可以改變斜角γ的大小和方向,就能改變泵的排量和吸、壓油的方向,此時(shí)即為雙向變量軸向柱塞泵。柱塞泵根據(jù)傾斜元件的不同,有斜盤式和斜軸式兩種。斜盤式是斜盤相對(duì)回轉(zhuǎn)的缸體有一傾斜角度,而引起柱塞在泵缸中往復(fù)運(yùn)動(dòng)。傳動(dòng)軸軸線和缸體軸線是*的。這種結(jié)構(gòu)較簡單,轉(zhuǎn)速較高,但工作條件要求高,柱塞端部與斜盤的接觸部往往是薄弱環(huán)節(jié)。斜軸式的斜盤軸線與傳動(dòng)軸軸線是*的。它是由于柱塞缸體相對(duì)傳動(dòng)軸傾斜一角度而使柱塞作往復(fù)運(yùn)動(dòng)。流量調(diào)節(jié)依靠擺動(dòng)柱塞缸體的角度來實(shí)現(xiàn),故有的又稱擺缸式。它與斜盤式相比,工作可靠,流量大,但結(jié)構(gòu)復(fù)雜。柱塞泵。但它又不同于往復(fù)式柱塞泵,因?yàn)樗闹粌H在泵缸內(nèi)做往復(fù)運(yùn)動(dòng),而且柱塞和泵缸與斜盤相對(duì)有旋轉(zhuǎn)運(yùn)動(dòng)。柱塞以一球形端頭與斜盤接觸。在配油盤上有高低壓月形溝槽,它們彼此由隔墻隔開,保證一定的密封性,它們分別與泵的進(jìn)油口和出油口連通。斜盤的軸線與缸體軸線之間有一傾斜角度。
柱塞泵是依靠柱塞與缸體內(nèi)孔面來形成密封工作容積的。由于柱塞與缸體內(nèi)孔均為圓柱表面,因此加工方便,配合精度高,密封性能好。故柱塞泵常做成高壓泵。柱塞泵是往復(fù)泵的一種,屬于體積泵,其柱塞靠泵軸的偏心轉(zhuǎn)動(dòng)驅(qū)動(dòng),往復(fù)運(yùn)動(dòng),其吸入和排出閥都是單向閥。當(dāng)柱塞外拉時(shí),工作內(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。
舉例型如下:
A4VSO125/180/250/355 A2FO10/61R-PAB06 9424894 A2FO10/61R-PBB06 9610682 A2FO12/61R-PAB06 9420472 A2FO12/61R-PBB06 9610683 A2FO16/61R-PAB06 9411113 A2FO16/61R-PBB06 9411121 A2FO23/61R-PAB05 9427223 A2FO23/61R-PBB05 9610684 A2FO28/61R-PAB05 9425164 A2FO28/61R-PBB05 9610685 A2FO32/61R-PAB05 9410193 A2FO32/61R-PBB05 9410198 A2FO45/61R-PZB05 9411585 A2FO56/61R-PAB05 9425190 A2FO56/61R-PBB05 9610686 A2FO63/61R-PAB05 9408527 A2FO63/61R-PBB05 9408552 A2FO80/61R-PAB05 9424687 A2FO80/61R -PBB05 9610687 A2FO90/61R-PAB05 9408467 A2FO90/61R-PBB05 9408472 A2FO107/61R-PAB05 9423259 A2FO107/61R-PBB05 9438282 A2FO125/61R-PAB05 9409641 A2FO125/61R-PBB05 9409642 A2FO160/61R-PAB05 9422192 A2FO160/61R-PBB05 9610688 A2FO180/61R-PAB05 9409371 A2FO180/61R-PBB05 9409358 A2FO200/63R-PAB05 2011993 Variable displacement pumps Type A10VSO 液壓可變排量泵 柱塞泵 936130 A10VSO 28 DFLR /31R-PPA12N00 936062 A10VSO 28 DFLR /31R-PPA12N00 936059 A10VSO 28 DFLR /31R-PPA12N00 940936 A10VSO 28 DFLR /31R-PPA12N00 939026 A10VSO 28 DFLR /31R-PPA12N00 903160 A10VSO 28 DFR /31R-PPA12N00 926318 A10VSO 28 DFR1 /31R-PPA12K01 910590 A10VSO 28 DFR1 /31R-PPA12N00 907919 A10VSO 28 DR /31R-PPA12K01 903163 A10VSO 28 DR /31R-PPA12N00 936910 A10VSO 45 DFLR /31R-PPA12N00 936912 A10VSO 45 DFLR /31R-PPA12N00 936739 A10VSO 45 DFLR /31R-PPA12N00 935975 A10VSO 45 DFLR /31R-PPA12N00 940582 A10VSO 45 DFLR /31R-PPA12N00 909613 A10VSO 45 DFR /31R-PPA12K01 911010 A10VSO 45 DFR /31R-PPA12K26 939183 A10VSO 45 DFR /31R-PPA12N00 927068 A10VSO 45 DFR1 /31R-PPA12K02 908725 A10VSO 45 DFR1 /31R-PPA12N00 907403 A10VSO 45 DR /31R-PPA12N00 944067 A10VSO 71 DFLR /31R-PPA12N00 944730 A10VSO 71 DFLR /31R-PPA12N00 942654 A10VSO 71 DFLR /31R-PPA12N00 944502 A10VSO 71 DFLR /31R-PPA12N00 948790 A10VSO 71 DFLR /31R-PPA12N00 961216 A10VSO 71 DFLR /31R-PPA12N00 Variable displacement pumps Type A10VSO 液壓可變排量泵 柱塞泵 944440 A10VSO 71 DFR1 /31R-PPA12N00 945133 A10VSO 71 DR /31R-PPA12N00 936207 A10VSO 100 DFLR /31R-PPA12N00 936738 A10VSO 100 DFLR /31R-PPA12N00 936473 A10VSO 100 DFLR /31R-PPA12N00 936790 A10VSO 100 DFLR /31R-PPA12N00 934823 A10VSO 100 DFLR /31R-PPA12N00 944032 A10VSO 100 DFLR /31R-PPA12N00 943468 A10VSO 100 DFLR /31R-PPA12N00 939643 A10VSO 100
DFR /31R-PPA12N00 927083 A10VSO 100 DFR1/31R-PPA12K02 922744 A10VSO 100 DFR1/31R-PPA12N00 912007 A10VSO 100 DR /31R-PPA12N00 936094 A10VSO 140 DFLR /31R-PPB12N00 935974 A10VSO 140 DFLR /31R-PPB12N00 941109 A10VSO 140 DFLR /31R-PPB12N00 938977 A10VSO 140 DFLR /31R-PPB12N00 943841 A10VSO 140 DFLR /31R-PPB12N00 939192 A10VSO 140 DFR /31R-PPB12N00 927126 A10VSO 140 DFR1/31R-PPB12K02 921546 A10VSO 140 DFR1/31R-PPB12N00 922983 A10VSO 140 DR /31R-PPB12N00 932852 A10VSO 140 DRG /31R-PPB12N00 945179 A10VSO 71 DFR /31R-PPA12K27 942635 A10VSO 71 DFR /31R-PPA12N00 947872 A10VSO 71 DFR1 /31R-PPA12K02 948654 A10VSO 71 DFLR /31R-PPA12N00 Variable displacement pumps Type A7VO 液壓可變排量泵 柱塞泵 A7VO55LRH1/63R-NZB01 9610373 A7VO55LRD/63R-NZB01 9610555 A7VO55DR/63R-NZB01 9610374 A7VO55EP/63R-NZB01 9610376 A7VO80LRH1/63R-NZB01 9610383 A7VO80LRD/63R-NZB01 9610557 A7VO80DR/63R-NZB01 9610384 A7VO80EP/63R-NZB01 9610386 A7VO107LRH1/63R-NZB01 9610393 A7VO107LRD/63R-NZB01 9610559 A7VO107DR/63R-NZB01 9610394 A7VO107EP/63R-NZB01 9610396 A7VO160LRH1/63R-NZB01 9610403 A7VO160LRD/63R-NZB01 9610561 A7VO160DR/63R-NZB01 9610404 A7VO160EP/63R-NZB01 9610406 A7V O 250 DR/63R-VPB02 934705 A7V O 250 LRD/63R-VPB02 940153