Rexroth葉片泵PV7-1X/63-71RE07MC0-16
- 型 號:R900506808
- 價 格(ge):¥16200
Rexroth葉片泵PV7-1X/63-71RE07MC0-16公司主營品牌液壓元件:博世力士樂Rexroth,迪普馬DUPLOMATIC,阿托斯ATOS,伊頓威格士液壓,?派克parker氣動元件:派克parker漢尼汾,愛爾泰克AIRTEC,ASCO世格,安沃馳AVENTICS氣動工控電氣(qi):貝加萊(lai)B&R工業備件,美國(guo)本特利(li)BENTLY,
Rexroth葉片泵PV7-1X/63-71RE07MC0-161.泵(beng)的(de)(de)軸(zhou)(zhou)線與電機(ji)的(de)(de)軸(zhou)(zhou)線虛保持一(yi)(yi)定(ding)的(de)(de)同(tong)(tong)軸(zhou)(zhou)度(du)。對于(yu)齒(chi)輪(lun)泵(beng),泵(beng)的(de)(de)轉(zhuan)動軸(zhou)(zhou)與電機(ji)輸出軸(zhou)(zhou)之間的(de)(de)安(an)裝(zhuang)采用彈性聯軸(zhou)(zhou)節,其(qi)不(bu)同(tong)(tong)軸(zhou)(zhou)度(du)不(bu)得(de)大于(yu)O.1mm,采用軸(zhou)(zhou)套式(shi)聯軸(zhou)(zhou)節的(de)(de)不(bu)同(tong)(tong)軸(zhou)(zhou)度(du)不(bu)得(de)大于(yu)0.05mm;對于(yu)葉片泵(beng),一(yi)(yi)般要求不(bu)同(tong)(tong)軸(zhou)(zhou)度(du)不(bu)得(de)大于(yu)0.1mm,且與電機(ji)之間應采用撓性連接;同(tong)(tong)樣(yang)對于(yu)斜盤式(shi)軸(zhou)(zhou)向安(an)裝(zhuang)精度(du)也提出具體要求:
(1)支座安裝的(de)斜盤式軸向(xiang)泵,其同軸度檢查允差事(shi)=0.1mm;
(2)采用法蘭安裝時,安裝精度(du)(du)要求其芯軸(zhou)徑向法蘭同軸(zhou)度(du)(du)檢查公差(cha)為西=0.1mm:法蘭垂(chui)直度(du)(du)檢查允差(cha)t=0.1mm;
(3)采用(yong)軸(zhou)(zhou)承(cheng)支(zhi)架安裝皮帶(dai)輪或齒(chi)輪,然后通過彈性(xing)聯軸(zhou)(zhou)節與(yu)泵聯接(jie),來(lai)保證(zheng)泵的主動軸(zhou)(zhou)不承(cheng)受徑(jing)向力(li)和軸(zhou)(zhou)向力(li)。可以(yi)允許承(cheng)受的力(li)應嚴格控制在許用(yong)范圍(wei)內,特殊(shu)情況下還要(yao)對轉子進行精(jing)密的動平衡實驗(yan),以(yi)盡量避(bi)免共(gong)振。
2.濾器的安裝
為避(bi)免泵(beng)(beng)(beng)抽空,嚴禁使用(yong)精(jing)密過(guo)(guo)濾器(qi)。對于齒輪泵(beng)(beng)(beng)的(de)(de)過(guo)(guo)濾精(jing)度(du)應(ying)≤40um,在吸油口(kou)常用(yong)網式過(guo)(guo)濾器(qi)。對于葉片泵(beng)(beng)(beng),柱塞(sai)泵(beng)(beng)(beng),油液的(de)(de)清潔度(du)應(ying)達到國(guo)家標準等級(ji)16/19級(ji),使用(yong)的(de)(de)過(guo)(guo)濾器(qi)精(jing)度(du)大(da)多(duo)為25~30um。吸油口(kou)過(guo)(guo)濾器(qi)的(de)(de)正(zheng)確選擇和(he)安裝,會使液壓故障明(ming)顯(xian)減少,各元(yuan)件的(de)(de)使用(yong)壽命可大(da)大(da)延長(chang)。
3.配(pei)管的安裝要求
(1)進(jin)(jin)油管(guan)的(de)安(an)裝(zhuang)高度(du)不得(de)大(da)于O.5m。進(jin)(jin)油管(guan)必須清洗干(gan)凈,與泵進(jin)(jin)油口(kou)配合(he)的(de)油泵緊密結合(he),必要時可加上密封膠,以免空氣進(jin)(jin)入液壓(ya)系(xi)統(tong)中(zhong)。
(2)進(jin)(jin)油(you)管道的彎頭不宜過(guo)(guo)多,進(jin)(jin)油(you)管道口應接(jie)有(you)過(guo)(guo)濾器(qi),過(guo)(guo)濾器(qi)不允許漏(lou)出油(you)箱(xiang)的油(you)面(mian)(mian)(mian)。當泵正常運轉后,其油(you)面(mian)(mian)(mian)離過(guo)(guo)濾器(qi)頂(ding)面(mian)(mian)(mian)至少應有(you)100mm,以免空氣進(jin)(jin)入,過(guo)(guo)濾器(qi)的有(you)效通(tong)油(you)面(mian)(mian)(mian)積一般(ban)不低于泵進(jin)(jin)油(you)口油(you)管的橫截面(mian)(mian)(mian)積的50倍(bei),并(bing)且(qie)過(guo)(guo)濾器(qi)應經常清洗,以免堵塞。(3)吸入管,壓(ya)出管和回(hui)油(you)管的通(tong)徑不應小(xiao)于規(gui)定值(zhi)。
(4)泵的泄漏回(hui)油管不(bu)宜與(yu)液壓系(xi)統其他回(hui)油管聯(lian)在(zai)一(yi)起,應單獨并插(cha)入油箱液面以下。
(5)為了防止泵的(de)(de)振動和(he)噪(zao)聲沿管(guan)道傳至系統,在泵的(de)(de)吸(xi)入口(kou)和(he)壓(ya)出口(kou)可(ke)各安裝一(yi)段軟管(guan),但壓(ya)出口(kou)軟管(guan)應(ying)垂直安裝,長度(du)不(bu)應(ying)超過400~600mm,吸(xi)入口(kou)軟管(guan)要有一(yi)定(ding)的(de)(de)強度(du),避(bi)免(mian)由于管(guan)內有真空度(du)而使其出現變扁(bian)現象。
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變(bian)(bian)(bian)量(liang)泵(beng)可(ke)以用做單作用葉(xie)片泵(beng)、徑向(xiang)柱塞泵(beng)、軸向(xiang)柱塞泵(beng)。隨著它種類(lei)和型(xing)號(hao)不(bu)斷豐富,它的(de)(de)使用范圍也不(bu)斷增大,例如在工(gong)程機械、冶金、礦山、船舶(bo)、等(deng)領(ling)域(yu)變(bian)(bian)(bian)量(liang)泵(beng)發揮越來越重(zhong)要的(de)(de)作用。那么變(bian)(bian)(bian)量(liang)泵(beng)工(gong)作原理是怎樣的(de)(de)呢? 變(bian)(bian)(bian)量(liang)泵(beng)工(gong)作原理 變(bian)(bian)(bian)量(liang)泵(beng)是排量(liang)可(ke)變(bian)(bian)(bian)的(de)(de)泵(beng)。
變(bian)(bian)(bian)(bian)(bian)(bian)量(liang)泵(beng)可以為(wei)(wei)單作用葉(xie)片(pian)泵(beng)、徑向(xiang)(xiang)柱(zhu)(zhu)(zhu)塞(sai)(sai)泵(beng)或軸向(xiang)(xiang)柱(zhu)(zhu)(zhu)塞(sai)(sai)泵(beng),廣泛用于(yu)冶(ye)金、礦山、工程機(ji)械、船(chuan)舶、地面設備(bei)等(deng)液壓傳動領域。變(bian)(bian)(bian)(bian)(bian)(bian)量(liang)泵(beng)徑向(xiang)(xiang)柱(zhu)(zhu)(zhu)塞(sai)(sai)泵(beng)包括活塞(sai)(sai)偏(pian)心(xin)式(shi)(shi)和軸偏(pian)心(xin)式(shi)(shi),軸向(xiang)(xiang)柱(zhu)(zhu)(zhu)塞(sai)(sai)式(shi)(shi)包括斜(xie)(xie)盤式(shi)(shi)和斜(xie)(xie)軸式(shi)(shi)。雙向(xiang)(xiang)變(bian)(bian)(bian)(bian)(bian)(bian)量(liang)泵(beng)是指(zhi)一臺泵(beng),在(zai)原動機(ji)轉(zhuan)動方(fang)向(xiang)(xiang)不變(bian)(bian)(bian)(bian)(bian)(bian)的(de)情況下,通過(guo)改(gai)(gai)變(bian)(bian)(bian)(bian)(bian)(bian)變(bian)(bian)(bian)(bian)(bian)(bian)量(liang)機(ji)構例如軸向(xiang)(xiang)柱(zhu)(zhu)(zhu)塞(sai)(sai)泵(beng)的(de)斜(xie)(xie)盤的(de)傾(qing)斜(xie)(xie)方(fang)向(xiang)(xiang)或壓縮比等(deng)方(fang)式(shi)(shi)改(gai)(gai)變(bian)(bian)(bian)(bian)(bian)(bian)排量(liang)的(de)方(fang)法。例如原來(lai)是東(dong)北(bei)-西南向(xiang)(xiang),改(gai)(gai)為(wei)(wei)西北(bei)-東(dong)南向(xiang)(xiang),則(ze)變(bian)(bian)(bian)(bian)(bian)(bian)量(liang)泵(beng)原來(lai)的(de)吸油口(kou)變(bian)(bian)(bian)(bian)(bian)(bian)成(cheng)出油口(kou),原來(lai)的(de)出油口(kou)變(bian)(bian)(bian)(bian)(bian)(bian)成(cheng)吸油口(kou),即改(gai)(gai)變(bian)(bian)(bian)(bian)(bian)(bian)了液流的(de)流向(xiang)(xiang)。
在閉式回路(lu)中(zhong),從而就改(gai)變(bian)(bian)了負載的(de)(de)轉動方向 比如斜(xie)盤(pan)式泵(beng)(beng)(beng)(beng)(beng)(beng)存在斜(xie)盤(pan)及缸體(ti)的(de)(de)轉動,在缸體(ti)中(zhong)的(de)(de)柱(zhu)(zhu)塞(sai)一(yi)(yi)會兒吸(xi)油(you),一(yi)(yi)會兒壓油(you)。變(bian)(bian)量(liang)(liang)(liang)泵(beng)(beng)(beng)(beng)(beng)(beng)可(ke)以(yi)為(wei)單作(zuo)用葉(xie)(xie)片(pian)(pian)泵(beng)(beng)(beng)(beng)(beng)(beng)、徑向柱(zhu)(zhu)塞(sai)泵(beng)(beng)(beng)(beng)(beng)(beng)或軸向柱(zhu)(zhu)塞(sai)泵(beng)(beng)(beng)(beng)(beng)(beng).齒輪泵(beng)(beng)(beng)(beng)(beng)(beng)和(he)雙作(zuo)用葉(xie)(xie)片(pian)(pian)泵(beng)(beng)(beng)(beng)(beng)(beng)一(yi)(yi)般都為(wei)定量(liang)(liang)(liang)泵(beng)(beng)(beng)(beng)(beng)(beng).變(bian)(bian)量(liang)(liang)(liang)泵(beng)(beng)(beng)(beng)(beng)(beng)結構(gou)復雜,價格高(gao);變(bian)(bian)量(liang)(liang)(liang)柱(zhu)(zhu)塞(sai)泵(beng)(beng)(beng)(beng)(beng)(beng)靠出口(kou)壓力反饋(kui)機構(gou)控制(zhi)(zhi)(zhi)斜(xie)盤(pan)角(jiao)度,從而控制(zhi)(zhi)(zhi)柱(zhu)(zhu)塞(sai)得行程,達到控制(zhi)(zhi)(zhi)流量(liang)(liang)(liang)的(de)(de)目(mu)的(de)(de);變(bian)(bian)量(liang)(liang)(liang)葉(xie)(xie)片(pian)(pian)泵(beng)(beng)(beng)(beng)(beng)(beng)靠出口(kou)壓力反饋(kui)機構(gou)控制(zhi)(zhi)(zhi)偏(pian)心(xin)環(huan)的(de)(de)偏(pian)心(xin)量(liang)(liang)(liang)來達到控制(zhi)(zhi)(zhi)流量(liang)(liang)(liang)的(de)(de)目(mu)的(de)(de);也就是說(shuo),變(bian)(bian)量(liang)(liang)(liang)柱(zhu)(zhu)塞(sai)斜(xie)盤(pan)垂直時,流量(liang)(liang)(liang)為(wei)零(ling),葉(xie)(xie)片(pian)(pian)泵(beng)(beng)(beng)(beng)(beng)(beng)同(tong)理。