维护保养: (1)要将吸入与排出侧的螺丝拧紧。 (2)经常清洗吸入端的过滤器。 (3)吸入和排出阀的漏损会减少往复泵的排量,在停工时间较长时,应进行调节,检查阀座,阀座上的“ O ”型密封圈,阀芯,弹簧是否磨损,必要时更换。。
在谈低压齿轮泵之前,有必要先介绍一下中高压齿轮泵,它主要用于工程机械上。中高压齿轮泵为减少其轴向泄漏,在齿轮的两端处设有侧板,挠性侧板和固定侧板浮动式侧板是将泵的出口压力油引到浮动式侧板后,使之紧贴于齿轮泵的端面用以补偿间隙,浮动轴套的原理与浮动侧板原理类似。挠性侧板是将压力油引到侧板的背后,靠侧板自身的变形来补偿轴向间隙的,固定式侧板是指侧板与齿轮端面轴向间隙不能自动补偿。而低压齿轮泵则比较简单,无须另设侧板,齿轮的端面直接与端盖来形成间隙,类似于中高压齿轮泵中的固定侧板。但是,无论中高压齿轮泵还是低压齿轮泵,它们的侧板或端盖的平面度要求都较高,与齿轮的端面间隙(轴向间隙)都很小。如果齿轮泵在使用中不当,端盖或齿轮端面就会出现磨伤、划伤和烧蚀现象。。
德国力士乐柱塞泵型号:
A4VS071DR/22R-PPB13NOO
A4VSG71EO2K/10R-PPB10H049N
A4VG71DWDMT2/23L-NZF02F041D
A4VG250HD1D1/32LNZD10F001S
A4VSG250HD1D/30R-PPB10K349N
A4VSG250EM1007/30R-PPB10H029F
A4VS0125DR/10R-PPB13N00
轴向柱塞泵E-A4VSO250EO2/30R-VPB25N00-SO3
A4VSG250HD1P/30R-PPB10G300N
A4VG250HD1D1/32LNZD10F001S
E-A4VSO250EO2/30R-VPB25N00-SO3
柱塞泵A4VSO180DR/30R-FPB13N00
A4VG90EP2DT1/32L-NAFO2F001D
柱塞泵
液压马达
A4VSO125DR/3DR-PPB13NOO
A4VSG250EM2044/30R-PPB10H029N
A4VSO40DR10RPPB13100N
A4VSO125DR/3DR-PPB13NOO
A4VS0125DR/22R-PPB13N00
A10VSO140DFR/31R-PPB12K26
A4VSG40EO1/10R-PPB10K019N
A4VSG71HD1U/10R-PPB10N000N
A10VSO45DFR1/31R-PPA12N00
A4VSG71HD1T/10R-PPB100419N
A4VSG71EM3120/10R-PPB10K019N
A4VS0125DR/3XR
A4VSG250EO2/30R-PPB10H020N
恒压变量泵E-
A4VS0125LR2N/22L-PZB13A00
A4VSG250DP/30R-PPB10N00
A4VSG71HD1U/10R-PPB10N000N
柱塞泵A4VSO180DR/30R-FPB13N00
A4VSG250HDA/30R-PPB10NOO9N
A4VSG250HS/10R-PPB10N00
A4VSG250HS/30L-PPB10N000N
A4VG90HWD2/32R-PZF02F001S
A4VSG40EO1/10R-PPB10K019N
A4VS0125DFR/30R-PPB13N00
A4VSG250EM3066/30R-PPB10N009N
E-A4VSO250EO2/30R-VPB25N00-SO3
A4VS0250DRG/30R-PPB13N00
变量轴向柱塞泵A4VSO125DR/30R-PPB13N00
A4VS0125DR/10R-PPB13N00
A4VG125HDM1/32R-NSF02F691S-S
A4VS0500HSK/30R-PPH13N0010SETE-
A4VG71DWDMT2/23L-NZF02F041D泵
A4VS0180DR/30R-PPB13N00
A4VSG250HD1P/30R-PPB10G300N
A4VSG250HS1/30R-PPB10N000N
柱塞泵A4VSG750HD/22R-PPH10NOO
A4VSO250DFR/30R-PPB13N00
A4VS040DR-PPB13N00
A10VS071DR/31R-PPA12N00
A2VK12MAOR4GOPE1-S029447172
A4VSG71EO1K/10R-PPB10H049N
A4VG125HD1D2/32R-NTF02F691P
A4VS071DR/30R-PPB13N00
A4VG125DA2D2/32R-NAF02F021DT
E-A10VSO45DR/31R-PPA12N00
A4VSO125DR/3DR-PPB13NOO
A4VS0250DRG/30R-PPB13N00E-
A4VSG71HD1U/10R-PPB10N000N
A4VS0250DRG/30R-PPB13N00
A4VS0250LR3G/30R-PZB13N00-S0
A4VSO250DFR/30R-PPB13N00
负载传感卸载回路。当主控阀的控制腔(下腔)无负载传感信号时,泵的所有流量经阀1、阀2排回油箱;当给此控制阀施加负载传感信号时,泵向回路供液;当泵的输出压力超过负载传感阀的压力预定值时,泵仅向回路提供工作流量,而多余流量经阀2的节流位置旁通回油箱。带负载传感元件的齿轮油泵与柱塞泵相比,具有成本低、抗污染能力强及维护要求低的优点。。
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