SNH940R36U12.1W2高压液压设备螺杆泵

SNH940R36U12.1W2高压液压设备螺杆泵

3.螺杆泵应用于高压液压设备
刚开始引进螺杆泵是作为潜水艇的液压泵使用的,仅限于特殊用途,而现在由于螺杆泵的排出压力可达25MPa.因此已用于船用绞车等多种设备
高压螺杆泵须解决的最大问题是尽量减少降低容积效率的内部泄漏。
内部泄漏的主要原困如下:
(i)螺杆啮合部位的泄漏
(ii)螺杆衬套内螺杆边缘型线部位修正引起的泄漏
(iii)螺旋部分外圆与螺杆衬套之间的泄漏 ,
(iv)因冷却轴封引起帕泄漏
最大的泄漏原因是由上述(i)引起的。
由于主动螺杆和从动螺杆的啮合部分靠线接触进行密封,并且压差较大,因此,该处的泄漏量占总泄漏量60%以上。但是,通过提高机加工精度,以及采用不受排出压力影响的泵结构,可将螺杆间的间隙由过去的O.04～O.05mm减小到O.01～O.03mm。
从动螺杆的外圆与螺杆衬套内孔的滑动是阻碍螺杆泵实现高压化的主要原因,这个问题现已通过减小表面粗糙度。加长螺杆长度以及降低平均表面压力得到了解决。
高压泵的性能。泵的内部泄漏量与转速无关,是一定的,所以高速转边可提高容积效率。因而,采用转速为3000～3600r/min的小型化泵的实例也很多。
对无回声室的噪声频率分析,要考虑由于泵的噪声小,所以在设计装置时,要充分地注意电动机噪声和连结器的回转噪音,以及油箱和台板的刚性。

SNH940R36U12.1W2高压液压设备螺杆泵

SNH940R36U12.1W2高压液压设备螺杆泵

SNH940R36U12.1W2高压液压设备螺杆泵

SNH940R36U8W2SNH940R42U8W2SNH940R46U8W2SNH940R50U8W2SNH940R54U8W2SNF940R36U8W2SNF940R42U8W2SNF940R46U8W2SNF940R50U8W2SNF940R54U8W2SNS940R36U8W2SNS940R42U8W2SNS940R46U8W2SNS940R50U8W2SNS940R54U8W2SNH940R36U8W3SNH940R42U8W3SNH940R46U8W3SNH940R50U8W3SNH940R54U8W3SNF940R36U8W3SNF940R42U8W3SNF940R46U8W3SNF940R50U8W3SNF940R54U8W3SNS940R36U8W3SNS940R42U8W3SNS940R46U8W3SNS940R50U8W3SNS940R54U8W3SNH940R36U8W21SNH940R42U8W21SNH940R46U8W21SNH940R50U8W21SNH940R54U8W21SNF940R36U8W21SNF940R42U8W21SNF940R46U8W21SNF940R50U8W21SNF940R54U8W21SNS940R36U8W21SNS940R42U8W21SNS940R46U8W21SNS940R50U8W21SNS940R54U8W21SNH940R36U8W23SNH940R42U8W23SNH940R46U8W23SNH940R50U8W23SNH940R54U8W23SNF940R36U8W23SNF940R42U8W23SNF940R46U8W23SNF940R50U8W23SNF940R54U8W23SNS940R36U8W23SNS940R42U8W23SNS940R46U8W23SNS940R50U8W23SNS940R54U8W23SNH940R36U12.1W2SNH940R42U12.1W2SNH940R46U12.1W2SNH940R50U12.1W2SNH940R54U12.1W2SNF940R36U12.1W2SNF940R42U12.1W2SNF940R46U12.1W2SNF940R50U12.1W2SNF940R54U12.1W2SNS940R36U12.1W2SNS940R42U12.1W2SNS940R46U12.1W2SNS940R50U12.1W2SNS940R54U12.1W2SNH940R36U12.1W3SNH940R42U12.1W3SNH940R46U12.1W3SNH940R50U12.1W3SNH940R54U12.1W3SNF940R36U12.1W3SNF940R42U12.1W3SNF940R46U12.1W3SNF940R50U12.1W3SNF940R54U12.1W3SNS940R36U12.1W3SNS940R42U12.1W3SNS940R46U12.1W3SNS940R50U12.1W3SNS940R54U12.1W3SNH940R36U12.1W21SNH940R42U12.1W21SNH940R46U12.1W21SNH940R50U12.1W21SNH940R54U12.1W21SNF940R36U12.1W21SNF940R42U12.1W21SNF940R46U12.1W21SNF940R50U12.1W21SNF940R54U12.1W21SNS940R36U12.1W21SNS940R42U12.1W21SNS940R46U12.1W21SNS940R50U12.1W21SNS940R54U12.1W21SNH940R36U12.1W23SNH940R42U12.1W23SNH940R46U12.1W23SNH940R50U12.1W23SNH940R54U12.1W23SNF940R36U12.1W23SNF940R42U12.1W23SNF940R46U12.1W23SNF940R50U12.1W23SNF940R54U12.1W23SNS940R36U12.1W23SNS940R42U12.1W23SNS940R46U12.1W23SNS940R50U12.1W23SNS940R54U12.1W23SNH940R36E6.7W2SNH940R42E6.7W2SNH940R46E6.7W2SNH940R50E6.7W2SNH940R54E6.7W2SNF940R36E6.7W2SNF940R42E6.7W2SNF940R46E6.7W2SNF940R50E6.7W2SNF940R54E6.7W2SNS940R36E6.7W2SNS940R42E6.7W2SNS940R46E6.7W2SNS940R50E6.7W2SNS940R54E6.7W2SNH940R36E6.7W3SNH940R42E6.7W3SNH940R46E6.7W3SNH940R50E6.7W3SNH940R54E6.7W3SNF940R36E6.7W3SNF940R42E6.7W3SNF940R46E6.7W3SNF940R50E6.7W3SNF940R54E6.7W3SNS940R36E6.7W3SNS940R42E6.7W3SNS940R46E6.7W3SNS940R50E6.7W3SNS940R54E6.7W3SNH940R36E6.7W21SNH940R42E6.7W21SNH940R46E6.7W21SNH940R50E6.7W21SNH940R54E6.7W21SNF940R36E6.7W21SNF940R42E6.7W21SNF940R46E6.7W21SNF940R50E6.7W21SNF940R54E6.7W21SNS940R36E6.7W21SNS940R42E6.7W21SNS940R46E6.7W21SNS940R50E6.7W21SNS940R54E6.7W21SNH940R36E6.7W23SNH940R42E6.7W23SNH940R46E6.7W23SNH940R50E6.7W23SNH940R54E6.7W23SNF940R36E6.7W23SNF940R42E6.7W23SNF940R46E6.7W23SNF940R50E6.7W23SNF940R54E6.7W23SNS940R36E6.7W23SNS940R42E6.7W23SNS940R46E6.7W23SNS940R50E6.7W23SNS940R54E6.7W23TRSNH940-40TRSNH940-42TRSNH940-46TRSNH940-50TRSNH940-54TRSNF940-40TRSNF940-42TRSNF940-46TRSNF940-50TRSNF940-54TRSNS940-40TRSNS940-42TRSNS940-46TRSNS940-50TRSNS940-54TRSND940-40TRSND940-42TRSND940-46TRSND940-50TRSND940-54TRSNK940-40TRSNK940-42TRSNK940-46TRSNK940-50TRSNK940-54HTSNH940-40HTSNH940-42HTSNH940-46HTSNH940-50HTSNH940-54HTSNF940-40HTSNF940-42HTSNF940-46HTSNF940-50HTSNF940-54HTSNS940-40HTSNS940-42HTSNS940-46HTSNS940-50HTSNS940-54HTSND940-40HTSND940-42HTSND940-46HTSND940-50HTSND940-54HTSNK940-40HTSNK940-42HTSNK940-46HTSNK940-50HTSNK940-54HSNH940-40ZHSNH940-42ZHSNH940-46ZHSNH940-50ZHSNH940-54ZHSNF940-40ZHSNF940-42ZHSNF940-46ZHSNF940-50ZHSNF940-54ZHSNS940-40ZHSNS940-42ZHSNS940-46ZHSNS940-50ZHSNS940-54ZHSNH940-40NZHSNH940-42NZHSNH940-46NZHSNH940-50NZHSNH940-54NZHSNF940-40NZHSNF940-42NZHSNF940-46NZHSNF940-50NZHSNF940-54NZHSNS940-40NZHSNS940-42NZHSNS940-46NZHSNS940-50NZHSNS940-54NZHSNH940-40W1ZHSNH940-42W1ZHSNH940-46W1ZHSNH940-50W1ZHSNH940-54W1ZHSNF940-40W1ZHSNF940-42W1ZHSNF940-46W1ZHSNF940-50W1ZHSNF940-54W1ZHSNS940-40W1ZHSNS940-42W1ZHSNS940-46W1ZHSNS940-50W1ZHSNS940-54W1ZHSNH940-40W1HSNH940-42W1HSNH940-46W1HSNH940-50W1HSNH940-54W1HSNF940-40W1HSNF940-42W1HSNF940-46W1HSNF940-50W1HSNF940-54W1HSNS940-40W1HSNS940-42W1HSNS940-46W1HSNS940-50W1HSNS940-54W1HSNH940-40NHSNH940-42NHSNH940-46NHSNH940-50NHSNH940-54NHSNF940-40NHSNF940-42NHSNF940-46NHSNF940-50NHSNF940-54NHSNS940-40NHSNS940-42NHSNS940-46NHSNS940-50NHSNS940-54NHSNH940-40HSNH940-42HSNH940-46HSNH940-50HSNH940-54HSNF940-40HSNF940-42HSNF940-46HSNF940-50HSNF940-54HSNS940-40HSNS940-42HSNS940-46HSNS940-50HSNS940-54HSND940-40W1HSND940-42W1HSND940-46W1HSND940-50W1HSND940-54W1HSND940-40NHSND940-42NHSND940-46NHSND940-50NHSND940-54NHSND940-40HSND940-42HSND940-46HSND940-50HSND940-54HSNK940-40W1HSNK940-42W1HSNK940-46W1HSNK940-50W1HSNK940-54W1HSNK940-40NHSNK940-42NHSNK940-46NHSNK940-50NHSNK940-54NHSNK940-40HSNK940-42HSNK940-46HSNK940-50HSNK940-54
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