齿轮泵是液压传动系统中常用的液压元件, 在结构上可分为外啮合齿轮泵和内啮合齿轮泵大类。外啮合齿轮泵的优点是结构简单、尺寸小、重量轻、制造维护方便、价格低廉、工作可靠、自吸能力强、对油液污染不***等。缺点是齿轮承受不平衡的径向液压力, 轴承磨损严重, 工作压力的提高受到限制; 流量脉动大, 导致系统压力脉动大,噪声高。内啮合齿轮泵结构紧凑、尺寸小、重量轻, 并且由于齿轮同向旋转, 相对滑动速度小、磨损轻微、使用寿命长、流量脉动远比外啮合齿轮泵小, 因而压力脉动和噪声都比较小。内啮合齿轮泵允许使用较高的转速, 可获得较高的容积效率。
2．马达工况：马达的作用是将液压能转变为机械能.当高压油从马达的进油口通过配流盘高压窗口进入缸体柱塞孔内, 推动柱塞运动, 由于缸体轴线与主轴轴线成一夹角,液压力通过连杆作用于主轴上, 产生一个切向力, 推动主轴旋转, 输出扭矩。同时工作过的油液借助于缸体的惯性旋转，被挤出柱塞孔，通过配油盘的低压窗口，从马达排油口排出。
德国力士乐柱塞泵型号：
A4VG125HD1D2/32R-NSF02F02F021P
A4VS071DR/31R-PPB
A4VG125EP2/32+A10V028DR/31
柱塞泵A4VSO180DR/30R-FPB13N00
柱塞泵A4VSG750HD/22R-PPH10NOO
变量轴向柱塞泵A4VSO125DR/30R-PPB13N00
A4VSG250EO1/30R-PPB10H029N
A4VSG250EO1/22R-PPB10N000N
A4FO500/30R-PZH25N00
A4VSG250HD1D/30R-PPB10K269N
A4FO500/30R-PZH25N00
A4VS0250DR/22R-PPB13N00
A4VS071DR/30R-PPB13N00
A4VSG71EM3136/10R-PPB10K019N
A4VG125HDM1/32R-NSF02F691S-S
A4VS0125DFR/30R-PPB13N00
柱塞泵A4VSO-250DR/30R-PPB13N00
A4VG125HD1P1/32R-N2D10F69
A4VS0250DR/30RPPB13N00
A4VSG250HD1A/30R-PPB10K269N
A4VSG250HS1/30R-PPB10N000N
A4VSG250HS1/30L-PPB10N000N
A4VS0125DR30R-PPB13N00
A4VG125HDMT1/32R-NSFO21S-S
A4VS0125DFR/30R-PPB13N00
A10VSO100DR/31R-PPA12NOO
A4VG90EP2DT1/32L-NAFO2F001D
A4VSG250HS/10R-PPB10N00
A4VG125HDM1/32R-NSF02F691S-S
A4VG125HD1D2/32R-NTF02F691P
A4VSO180DR/-30R-PPB13N00
A4VSG40EO1/10R-PPB10K019N
E-A10VSO100DR/31R-PPA12N00
A4VSG250HD1A/30R-PPB10K269N
A4VS040DR/10X-PPB13N00
A4VG90HWDL1/32L-NZF02F001S-SB
A4VSO500HS4/30R-PZH25N00
A4VG125HDMT1-32R-NSF02F691S-S
A4VSG71HW/10R-PPB10H029F
A4VSG71HD1T/10R-PPB100419N
A4VSG250HD1D/30R-PPB10K349N
A4VSO40DR/10R-PPB13N00
A10VSO100DFLR/31R-PPA12K26
A4VSG250HD1D/30R-PPB10K269N
A4VS0125DR/22R-PPB13N00
AE-A10VSO140D/31R-PPB12N00
A4VG125EP2/32+A10V028DR/31
轴向柱塞泵
A4VG90HWDL1/32L-NZF02F001S-SB
A4VSO500HS4/30R-PZH25N00
A4VSG250EO1/30R-PPB10H029N
A4VG250HD3D1/32R-NSD10F001D
A4VG71DWDMT2/23L-NZF02F041D
A4VSG250EM2044/30R-PPB10H029N
A4VG125HD1D2/32R-NTF02F691P
A4VS071DR/30R-PPB13N00
A4VSG250HD1D/30R-PPB10K349N
柱塞泵A4VSO180DR/30R-FPB13N00
A4VG250HD1D1/32R-NSD10F0010
A4VSO500E02/30R-PPH13N00
A4VG90HWDL1/32R-NAF02F071L-S+A
A4VSG250EO1/30R-PPB10H029N
柱塞泵
A4VSG500HD1AT/30R-PPH10K249N
A4VSG250EM1007/30R-PPB10H029F
A4VSG250HD1P/30R-PPB10G300N
另外还存在材料金相组织稳定的问题，众所周知，钢在淬火后总是会有残余的奥氏体，该体长时间会转变成密度小的马氏体。这样一来，会使零件尺寸变形，减少间隙。这个因素基本是估计不到的。所以，从这个观点来看，柱塞采用刃量具钢为好，或者说采用时效或者冷处理，来稳定金相组织。这个问题在间隙小时就显得尤为重要了。
s19hms220
以上型号不全，可来电咨询~~● 新闻：A4VS0250E01/30R-PPBN00-S036批发商：http://www.jdzj.com/chanpin/ku1_2778884.html
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