REXROTH葉片泵安裝不當(dāng)。兩帶輪中心距太小或兩軸不太平行，傳動(dòng)帶緊邊安裝到上面，致使包角太小，兩帶輪直徑計(jì)算差錯(cuò)以及聯(lián)軸傳動(dòng)水泵兩軸偏心距較大等，均會(huì)造成水泵轉(zhuǎn)速變化。 REXROTH葉片泵本身機(jī)械故障。葉輪與泵軸緊固螺母松脫或泵軸變形彎曲，造成葉輪多移，直接與泵體摩擦，或軸承損壞，都有可能降低水泵轉(zhuǎn)速。 動(dòng)力機(jī)維修不錄。電動(dòng)機(jī)因繞組燒毀，而失磁，維修中繞組匝數(shù)、線徑、接線方法改變，或維修中故障未*排除因素也會(huì)使水泵轉(zhuǎn)速改變。 REXROTH葉片泵工作前，先將泵內(nèi)充滿液體，然后啟動(dòng)離心泵，葉輪快速轉(zhuǎn)動(dòng)，葉輪的葉片驅(qū)使液體轉(zhuǎn)動(dòng)，液體轉(zhuǎn)動(dòng)時(shí)依靠慣性向葉輪外緣流去，同時(shí)葉輪從吸入室吸進(jìn)液體， REXROTH力士樂(lè)葉片泵在繞流運(yùn)動(dòng)中液體作用一升力于葉片，反過(guò)來(lái)葉片以一個(gè)與此升力大小相等、方向相反的力作用于液體，這個(gè)力對(duì)液體做功，使液體得到能量而流出葉輪，這時(shí)液體 的動(dòng)能與壓能均增大。 上海維特銳在德國(guó)與REXROTH合作，可長(zhǎng)期穩(wěn)定供應(yīng)力士樂(lè)葉片泵，力士樂(lè)電磁閥，REXROTH導(dǎo)軌，力士樂(lè)柱塞泵等產(chǎn)品 R900618143 PV7-2X/20-20RA01MA0-10-A416 R900598753 PV7-1X/10-14RE01MC3-16
R900593330 PV7-1X/40-45RE37MD0-16 R900592237 PV7-1X/16-20RE01MC3-16
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R900580384 PV7-1X/40-45RE37MC0-16 R900580383 PV7-1X/25-30RE01MC0-16
R900580382 PV7-1X/16-20RE01MC0-16 R900580381 PV7-1X/10-14RE01MC0-16
R900576487 PV7-1X/25-45RE01MC5-08WH R900574560 PV7-1X/63-94RE07MD0-08
R900573212 PV7-1X/16-20RE01MD0-16-A234 R900571305 PV7-1X/63-71RE07KC0-16
R900568873 PV7-1X/100-150RE07KC0-08 R900568833 PV7-1X/25-45RE01MD0-08
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R900562475 PV7-1X/25-30RE01KC0-16 R900561857 PV7-1X/06-10RA01MA0-05
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R900560916 PV7-1X/10-14RE01KC0-16 R900560659 PV7-1X/63-94RE07MC0-08
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R900556803 PV7-1X/100-118RE07MC5-16WH R900553692 PV7-1X/63-71RE07MC5-16WG
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