力士樂REXROTH葉片泵R900247239 價格驚喜

REXROTH葉片泵只不過是離心泵的一種具體應用的泵而命名。實質上砂泵只是一個籠統的叫法。一般主要用在礦業，煤炭，冶金，化工，環保等行業。一般意義的砂泵更多是指用在環保，挖沙，河道清淤等行業較多。這個系列砂泵主要以ES或者G系列的較多。除此之外，叫做砂泵的類型還有很多，石油領域的SB砂泵，礦業上的PS砂泵系列等等。本文介紹的砂泵主要以通常意義上的ES或G系列的挖沙，環保行業的用的砂泵。REXROTH葉片泵均為臥式、單泵殼結構的離心泵。采用特殊的卡箍夾緊泵體與泵蓋，泵的吐出口方向可在360度的任何一個位置，安裝使用方便。砂泵的軸承組件采用圓筒式結構，便于調整葉輪與泵體之間的間隙，維修時可整體拆除。軸承采用油脂潤滑。砂泵的軸封形式有填料密封、付葉輪密封、機械密封。

一、Rexroth力士樂葉片泵PV7系列的剖面圖
Rexroth力士樂葉片泵PV7系列的結構，型號PV7的液壓泵是變量葉片泵。
1、主要由泵體(1)、轉子(2)、葉片(3)、定子環(4)、壓力控制器(5)和調節螺栓(6)組成。
2、圓形的定子環(4)夾持在小調節活塞(10)和大調節活塞(11)之間。此環的第三個接觸點是高度調節螺栓(7)。
3、被驅動的轉子(2)在定子環(4)內轉動。轉子槽內的葉片由于離心力的作用壓在定子環(4)上。

二、Rexroth力士樂葉片泵PV7系列的功能，有下面功能：
1、吸油和排油過程
a.用來傳遞油液的腔(8)由葉片(3)、轉子(2)、定子環(4)和配油盤(9)形成。
b.為了在投入使用時確保泵的運行功能，定子環(4)由大調節活塞(11)后面的彈簧(12)壓在其偏心位置(排油位置)。
2、調節
a.在系統內建壓的同時，小調節活塞(10)的背面通過油道始終受系統壓力的作用。
b.當Rexroth泵排油時，大調節活塞(11)的背面通過控制閥芯(14)上的孔和系統壓力相連。調節活塞(11)的大端面將定子環(4)壓在偏心位置。
c.Rexroth泵在壓力低于由壓力控制器(5)所設定的零行程壓力時排油。控制閥芯(14)由彈簧(13[工業電器網-cnelc])控制在一定的位置。
d.當轉子(2)轉動時，油腔(8)的容積增大，并且通過吸油通道(S)吸油。當油腔(8)達到zui大容積時，它脫離吸油側。轉子(2)繼續轉動，此腔和壓油側接通，并使其容積減小，通過壓油通道(P)壓油到系統。
3、向下調節
如果液體壓力x面積的力FP大于相對的彈簧力FF，則控制閥芯(14)向彈簧(13)側移動。此時，大調節活塞(11)背面的油腔接通油箱并卸荷。始終在系統壓力作用下的小調節活塞(10)將定子環(4)推向其中心位置。Rexroth泵維持一定的壓力，而流量降為零，泄漏得到補償。
功率損失和油液的發熱很小。qV-p特性曲線為垂直狀，并隨設定壓力的增高而平行移動。
4、向上調節
當系統壓力降到零行程壓力之下時，彈簧(13)推動控制閥芯(14)回到其原始位置。
大調節活塞(11)承受到壓力作用，并推動定子環(4)移向偏心位置。Rexroth泵重新開始排油。

力士樂REXROTH葉片泵R900247239 價格驚喜

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力士樂REXROTH葉片泵常用型號：
力士樂REXROTH葉片泵現貨型號：
力士樂REXROTH葉片泵*型號：
力士樂REXROTH葉片泵*型號：

R900245924 PV7-1X/16-30RE01MC5-08WH
R900247239 PV7-1X/10-20RE01MC5-08WH
R900502277 PV7-1X/40-45RE37MC5-16
R900504653 PV7-1X/10-14RE01MD0-16
R900506473 PV7-1X/16-20RE01MC5-16
R900506808 PV7-1X/63-71RE07MC0-16
R900506809 PV7-1X/100-118RE07MC0-16
R900509053 PV7-1X/10-14RE01MC7-16
R900509274 PV7-1X/16-20RE01MD0-16
R900509506 PV7-1X/25-30RE01MD0-16
R900511215 PV7-1X/100-118RE07MC3-16
R900511986 PV7-1X/63-71RE07MC3-16
R900511987 PV7-1X/16-20RE01MD3-16
R900516546 PV7-1X/100-118RE07MC5-16
R900517464 PV7-1X/25-30RE01MC5-16
R900518218 PV7-1X/63-71RE07MC5-16
R900519094 PV7-1X/63-71RE07MD0-16
R900519411 PV7-1X/100-118RE07MN5-16
R900520401 PV7-1X/10-14RE01MC5-16
R900520725 PV7-1X/10-14RE01MD3-16
R900520787 PV7-1X/10-14RE01MD5-16
R900523597 PV7-1X/40-45RE37KC0-16
R900532770 PV7-1X/100-118RE07MD0-16
R900533296 PV7-1X/16-30RE01MC3-08
R900533582 PV7-1X/16-30RE01MC0-08
R900533637 PV7-1X/100-118RE07MC7-16
R900533919 PV7-1X/40-45RE37MN0-16
R900534143 PV7-1X/10-20RE01MC0-08
R900534412 PV7-1X/16-20RE01MC7-16
R900534508 PV7-1X/25-45RE01MC0-08
R900535061 PV7-1X/63-71RE07MC7-16
R900535532 PV7-1X/25-45RE01MC5-08
R900535588 PV7-1X/40-71RE37MC0-08
R900537419 PV7-1X/10-14RE01MN0-16
R900538125 PV7-1X/10-20RE01MC3-08
R900538525 PV7-1X/25-45RE01MC3-08
R900539468 PV7-1X/40-71RE37MC5-08
R900539710 PV7-1X/10-20RE01MC5-08
R900539886 PV7-1X/40-71RE37MD0-08
R900546886 PV7-1X/25-30RE01KC3-16
R900535061 PV7-1X/63-71RE07MC7-16
R900535532 PV7-1X/25-45RE01MC5-08
R900535588 PV7-1X/40-71RE37MC0-08
R900537419 PV7-1X/10-14RE01MN0-16
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REXROTH,BOSCH ,VPV80,葉片泵
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