維護保養(yǎng): (1)要將吸入與排出側(cè)的螺絲擰緊。 (2)經(jīng)常清洗吸入端的過濾器。 (3)吸入和排出閥的漏損會減少往復(fù)泵的排量,在停工時間較長時,應(yīng)進行調(diào)節(jié),檢查閥座,閥座上的“ O ”型密封圈,閥芯,彈簧是否磨損,必要時更換。。
在談低壓齒輪泵之前,有必要先介紹一下中高壓齒輪泵,它主要用于工程機械上。中高壓齒輪泵為減少其軸向泄漏,在齒輪的兩端處設(shè)有側(cè)板,撓性側(cè)板和固定側(cè)板浮動式側(cè)板是將泵的出口壓力油引到浮動式側(cè)板后,使之緊貼于齒輪泵的端面用以補償間隙,浮動軸套的原理與浮動側(cè)板原理類似。撓性側(cè)板是將壓力油引到側(cè)板的背后,靠側(cè)板自身的變形來補償軸向間隙的,固定式側(cè)板是指側(cè)板與齒輪端面軸向間隙不能自動補償。而低壓齒輪泵則比較簡單,無須另設(shè)側(cè)板,齒輪的端面直接與端蓋來形成間隙,類似于中高壓齒輪泵中的固定側(cè)板。但是,無論中高壓齒輪泵還是低壓齒輪泵,它們的側(cè)板或端蓋的平面度要求都較高,與齒輪的端面間隙(軸向間隙)都很小。如果齒輪泵在使用中不當(dāng),端蓋或齒輪端面就會出現(xiàn)磨傷、劃傷和燒蝕現(xiàn)象。。
德國力士樂柱塞泵型號:
A4VS071DR/22R-PPB13NOO
A4VSG71EO2K/10R-PPB10H049N
A4VG71DWDMT2/23L-NZF02F041D
A4VG250HD1D1/32LNZD10F001S
A4VSG250HD1D/30R-PPB10K349N
A4VSG250EM1007/30R-PPB10H029F
A4VS0125DR/10R-PPB13N00
軸向柱塞泵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
液壓馬達
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
恒壓變量泵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
變量軸向柱塞泵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
負載傳感卸載回路。當(dāng)主控閥的控制腔(下腔)無負載傳感信號時,泵的所有流量經(jīng)閥1、閥2排回油箱;當(dāng)給此控制閥施加負載傳感信號時,泵向回路供液;當(dāng)泵的輸出壓力超過負載傳感閥的壓力預(yù)定值時,泵僅向回路提供工作流量,而多余流量經(jīng)閥2的節(jié)流位置旁通回油箱。帶負載傳感元件的齒輪油泵與柱塞泵相比,具有成本低、抗污染能力強及維護要求低的優(yōu)點。。
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