SNH940R36U12.1W2高壓液壓設(shè)備螺桿泵,結(jié)構(gòu),①選擇品牌機(jī)械密封;②二道密封保護(hù)設(shè)計(jì);③內(nèi)部流道設(shè)計(jì),保證密封腔不缺油、不升壓、不升溫
SNH940R36U12.1W2高壓液壓設(shè)備螺桿泵
3.螺桿泵應(yīng)用于高壓液壓設(shè)備
剛開(kāi)始引進(jìn)螺桿泵是作為潛水艇的液壓泵使用的,僅限于特殊用途,而現(xiàn)在由于螺桿泵的排出壓力可達(dá)25MPa.因此已用于船用絞車(chē)等多種設(shè)備
高壓螺桿泵須解決的zui大問(wèn)題是盡量減少降低容積效率的內(nèi)部泄漏。
內(nèi)部泄漏的主要原困如下:
(i)螺桿嚙合部位的泄漏
(ii)螺桿襯套內(nèi)螺桿邊緣型線(xiàn)部位修正引起的泄漏
(iii)螺旋部分外圓與螺桿襯套之間的泄漏 ,
(iv)因冷卻軸封引起帕泄漏
zui大的泄漏原因是由上述(i)引起的。
由于主動(dòng)螺桿和從動(dòng)螺桿的嚙合部分靠線(xiàn)接觸進(jìn)行密封,并且壓差較大,因此,該處的泄漏量占總泄漏量60%以上。但是,通過(guò)提高機(jī)加工精度,以及采用不受排出壓力影響的泵結(jié)構(gòu),可將螺桿間的間隙由過(guò)去的O.04~O.05mm減小到O.01~O.03mm。
從動(dòng)螺桿的外圓與螺桿襯套內(nèi)孔的滑動(dòng)是阻礙螺桿泵實(shí)現(xiàn)高壓化的主要原因,這個(gè)問(wèn)題現(xiàn)已通過(guò)減小表面粗糙度。加長(zhǎng)螺桿長(zhǎng)度以及降低平均表面壓力得到了解決。
高壓泵的性能。泵的內(nèi)部泄漏量與轉(zhuǎn)速無(wú)關(guān),是一定的,所以高速轉(zhuǎn)邊可提高容積效率。因而,采用轉(zhuǎn)速為3000~3600r/min的小型化泵的實(shí)例也很多。
對(duì)無(wú)回聲室的噪聲頻率分析,要考慮由于泵的噪聲小,所以在設(shè)計(jì)裝置時(shí),要充分地注意電動(dòng)機(jī)噪聲和連結(jié)器的回轉(zhuǎn)噪音,以及油箱和臺(tái)板的剛性。
SNH940R36U12.1W2高壓液壓設(shè)備螺桿泵
SNH940R36U8W2 | SNH940R42U8W2 | SNH940R46U8W2 | SNH940R50U8W2 | SNH940R54U8W2 |
SNF940R36U8W2 | SNF940R42U8W2 | SNF940R46U8W2 | SNF940R50U8W2 | SNF940R54U8W2 |
SNS940R36U8W2 | SNS940R42U8W2 | SNS940R46U8W2 | SNS940R50U8W2 | SNS940R54U8W2 |
SNH940R36U8W3 | SNH940R42U8W3 | SNH940R46U8W3 | SNH940R50U8W3 | SNH940R54U8W3 |
SNF940R36U8W3 | SNF940R42U8W3 | SNF940R46U8W3 | SNF940R50U8W3 | SNF940R54U8W3 |
SNS940R36U8W3 | SNS940R42U8W3 | SNS940R46U8W3 | SNS940R50U8W3 | SNS940R54U8W3 |
SNH940R36U8W21 | SNH940R42U8W21 | SNH940R46U8W21 | SNH940R50U8W21 | SNH940R54U8W21 |
SNF940R36U8W21 | SNF940R42U8W21 | SNF940R46U8W21 | SNF940R50U8W21 | SNF940R54U8W21 |
SNS940R36U8W21 | SNS940R42U8W21 | SNS940R46U8W21 | SNS940R50U8W21 | SNS940R54U8W21 |
SNH940R36U8W23 | SNH940R42U8W23 | SNH940R46U8W23 | SNH940R50U8W23 | SNH940R54U8W23 |
SNF940R36U8W23 | SNF940R42U8W23 | SNF940R46U8W23 | SNF940R50U8W23 | SNF940R54U8W23 |
SNS940R36U8W23 | SNS940R42U8W23 | SNS940R46U8W23 | SNS940R50U8W23 | SNS940R54U8W23 |
SNH940R36U12.1W2 | SNH940R42U12.1W2 | SNH940R46U12.1W2 | SNH940R50U12.1W2 | SNH940R54U12.1W2 |
SNF940R36U12.1W2 | SNF940R42U12.1W2 | SNF940R46U12.1W2 | SNF940R50U12.1W2 | SNF940R54U12.1W2 |
SNS940R36U12.1W2 | SNS940R42U12.1W2 | SNS940R46U12.1W2 | SNS940R50U12.1W2 | SNS940R54U12.1W2 |
SNH940R36U12.1W3 | SNH940R42U12.1W3 | SNH940R46U12.1W3 | SNH940R50U12.1W3 | SNH940R54U12.1W3 |
SNF940R36U12.1W3 | SNF940R42U12.1W3 | SNF940R46U12.1W3 | SNF940R50U12.1W3 | SNF940R54U12.1W3 |
SNS940R36U12.1W3 | SNS940R42U12.1W3 | SNS940R46U12.1W3 | SNS940R50U12.1W3 | SNS940R54U12.1W3 |
SNH940R36U12.1W21 | SNH940R42U12.1W21 | SNH940R46U12.1W21 | SNH940R50U12.1W21 | SNH940R54U12.1W21 |
SNF940R36U12.1W21 | SNF940R42U12.1W21 | SNF940R46U12.1W21 | SNF940R50U12.1W21 | SNF940R54U12.1W21 |
SNS940R36U12.1W21 | SNS940R42U12.1W21 | SNS940R46U12.1W21 | SNS940R50U12.1W21 | SNS940R54U12.1W21 |
SNH940R36U12.1W23 | SNH940R42U12.1W23 | SNH940R46U12.1W23 | SNH940R50U12.1W23 | SNH940R54U12.1W23 |
SNF940R36U12.1W23 | SNF940R42U12.1W23 | SNF940R46U12.1W23 | SNF940R50U12.1W23 | SNF940R54U12.1W23 |
SNS940R36U12.1W23 | SNS940R42U12.1W23 | SNS940R46U12.1W23 | SNS940R50U12.1W23 | SNS940R54U12.1W23 |
SNH940R36E6.7W2 | SNH940R42E6.7W2 | SNH940R46E6.7W2 | SNH940R50E6.7W2 | SNH940R54E6.7W2 |
SNF940R36E6.7W2 | SNF940R42E6.7W2 | SNF940R46E6.7W2 | SNF940R50E6.7W2 | SNF940R54E6.7W2 |
SNS940R36E6.7W2 | SNS940R42E6.7W2 | SNS940R46E6.7W2 | SNS940R50E6.7W2 | SNS940R54E6.7W2 |
SNH940R36E6.7W3 | SNH940R42E6.7W3 | SNH940R46E6.7W3 | SNH940R50E6.7W3 | SNH940R54E6.7W3 |
SNF940R36E6.7W3 | SNF940R42E6.7W3 | SNF940R46E6.7W3 | SNF940R50E6.7W3 | SNF940R54E6.7W3 |
SNS940R36E6.7W3 | SNS940R42E6.7W3 | SNS940R46E6.7W3 | SNS940R50E6.7W3 | SNS940R54E6.7W3 |
SNH940R36E6.7W21 | SNH940R42E6.7W21 | SNH940R46E6.7W21 | SNH940R50E6.7W21 | SNH940R54E6.7W21 |
SNF940R36E6.7W21 | SNF940R42E6.7W21 | SNF940R46E6.7W21 | SNF940R50E6.7W21 | SNF940R54E6.7W21 |
SNS940R36E6.7W21 | SNS940R42E6.7W21 | SNS940R46E6.7W21 | SNS940R50E6.7W21 | SNS940R54E6.7W21 |
SNH940R36E6.7W23 | SNH940R42E6.7W23 | SNH940R46E6.7W23 | SNH940R50E6.7W23 | SNH940R54E6.7W23 |
SNF940R36E6.7W23 | SNF940R42E6.7W23 | SNF940R46E6.7W23 | SNF940R50E6.7W23 | SNF940R54E6.7W23 |
SNS940R36E6.7W23 | SNS940R42E6.7W23 | SNS940R46E6.7W23 | SNS940R50E6.7W23 | SNS940R54E6.7W23 |
TRSNH940-40 | TRSNH940-42 | TRSNH940-46 | TRSNH940-50 | TRSNH940-54 |
TRSNF940-40 | TRSNF940-42 | TRSNF940-46 | TRSNF940-50 | TRSNF940-54 |
TRSNS940-40 | TRSNS940-42 | TRSNS940-46 | TRSNS940-50 | TRSNS940-54 |
TRSND940-40 | TRSND940-42 | TRSND940-46 | TRSND940-50 | TRSND940-54 |
TRSNK940-40 | TRSNK940-42 | TRSNK940-46 | TRSNK940-50 | TRSNK940-54 |
HTSNH940-40 | HTSNH940-42 | HTSNH940-46 | HTSNH940-50 | HTSNH940-54 |
HTSNF940-40 | HTSNF940-42 | HTSNF940-46 | HTSNF940-50 | HTSNF940-54 |
HTSNS940-40 | HTSNS940-42 | HTSNS940-46 | HTSNS940-50 | HTSNS940-54 |
HTSND940-40 | HTSND940-42 | HTSND940-46 | HTSND940-50 | HTSND940-54 |
HTSNK940-40 | HTSNK940-42 | HTSNK940-46 | HTSNK940-50 | HTSNK940-54 |
HSNH940-40Z | HSNH940-42Z | HSNH940-46Z | HSNH940-50Z | HSNH940-54Z |
HSNF940-40Z | HSNF940-42Z | HSNF940-46Z | HSNF940-50Z | HSNF940-54Z |
HSNS940-40Z | HSNS940-42Z | HSNS940-46Z | HSNS940-50Z | HSNS940-54Z |
HSNH940-40NZ | HSNH940-42NZ | HSNH940-46NZ | HSNH940-50NZ | HSNH940-54NZ |
HSNF940-40NZ | HSNF940-42NZ | HSNF940-46NZ | HSNF940-50NZ | HSNF940-54NZ |
HSNS940-40NZ | HSNS940-42NZ | HSNS940-46NZ | HSNS940-50NZ | HSNS940-54NZ |
HSNH940-40W1Z | HSNH940-42W1Z | HSNH940-46W1Z | HSNH940-50W1Z | HSNH940-54W1Z |
HSNF940-40W1Z | HSNF940-42W1Z | HSNF940-46W1Z | HSNF940-50W1Z | HSNF940-54W1Z |
HSNS940-40W1Z | HSNS940-42W1Z | HSNS940-46W1Z | HSNS940-50W1Z | HSNS940-54W1Z |
HSNH940-40W1 | HSNH940-42W1 | HSNH940-46W1 | HSNH940-50W1 | HSNH940-54W1 |
HSNF940-40W1 | HSNF940-42W1 | HSNF940-46W1 | HSNF940-50W1 | HSNF940-54W1 |
HSNS940-40W1 | HSNS940-42W1 | HSNS940-46W1 | HSNS940-50W1 | HSNS940-54W1 |
HSNH940-40N | HSNH940-42N | HSNH940-46N | HSNH940-50N | HSNH940-54N |
HSNF940-40N | HSNF940-42N | HSNF940-46N | HSNF940-50N | HSNF940-54N |
HSNS940-40N | HSNS940-42N | HSNS940-46N | HSNS940-50N | HSNS940-54N |
HSNH940-40 | HSNH940-42 | HSNH940-46 | HSNH940-50 | HSNH940-54 |
HSNF940-40 | HSNF940-42 | HSNF940-46 | HSNF940-50 | HSNF940-54 |
HSNS940-40 | HSNS940-42 | HSNS940-46 | HSNS940-50 | HSNS940-54 |
HSND940-40W1 | HSND940-42W1 | HSND940-46W1 | HSND940-50W1 | HSND940-54W1 |
HSND940-40N | HSND940-42N | HSND940-46N | HSND940-50N | HSND940-54N |
HSND940-40 | HSND940-42 | HSND940-46 | HSND940-50 | HSND940-54 |
HSNK940-40W1 | HSNK940-42W1 | HSNK940-46W1 | HSNK940-50W1 | HSNK940-54W1 |
HSNK940-40N | HSNK940-42N | HSNK940-46N | HSNK940-50N | HSNK940-54N |
HSNK940-40 | HSNK940-42 | HSNK940-46 | HSNK940-50 | HSNK940-54 |