德國REXROTH力士樂柱塞泵 德國REXROTH力士樂柱塞泵依靠柱塞與缸體內(nèi)孔面來形成密封工作容積的。由于柱塞與缸體內(nèi)孔均為圓柱表面，因此加工方便，配合精度高，密封性能好。故柱塞泵常做成高壓泵。
優(yōu)點(diǎn)：壓力高、結(jié)構(gòu)緊湊、效率高及流量調(diào)節(jié)方便。
缺點(diǎn)：結(jié)構(gòu)復(fù)雜，價(jià)格較貴。
柱塞泵按柱塞排列方向的不同，分為軸向柱塞泵和徑向柱塞泵。在此，簡要介紹軸向柱塞泵和回轉(zhuǎn)式徑向柱塞泵。
– 斜軸結(jié)構(gòu)軸向柱塞變量泵，用于開式回路的液壓傳動(dòng)系統(tǒng)。
– 適用于工程機(jī)械或工業(yè)領(lǐng)域。
– 多種變量方式適用于各種控制和調(diào)節(jié)過程。
– 堅(jiān)固的驅(qū)動(dòng)軸圓錐滾子軸承使泵結(jié)構(gòu)緊湊，壽命長。
– 輸出流量與轉(zhuǎn)速和排量成正比，排量從Vg max至Vg min＝0無級(jí)可調(diào)。
1)軸向柱塞泵。軸向柱塞泵由配流盤、缸體(轉(zhuǎn)子)、柱塞和斜盤等主要零件組成。在配流盤上開有兩個(gè)弧形 溝槽，分別與泵的吸、壓油口連通，形成吸油腔和壓油腔。斜盤、配流盤均與泵體相固定，柱塞在彈簧的作用下以球形端頭與斜盤接觸。兩個(gè)弧形溝槽彼此隔開，保 持一定的密封性。斜盤相對(duì)于缸體的夾角為γ。原動(dòng)機(jī)通過傳動(dòng)軸帶動(dòng)缸體旋轉(zhuǎn)，柱塞就在柱塞孔內(nèi)作軸向往復(fù)滑動(dòng)。處于π～2π范圍內(nèi)的柱塞向外伸出，使其底 部的密封容積增大，將油吸入；處于0～π范圍內(nèi)的柱塞向缸體內(nèi)壓入，使其底部的密封容積減小，把油壓往系統(tǒng)中。 rexroth力士樂軸向柱塞泵的工作原理 軸向柱塞泵是將多個(gè)柱塞配置在一個(gè)共同缸體的圓周上,并使柱塞中心線和缸體中心線平行的一種泵。軸向柱塞泵有兩種形式,直軸式（斜盤式）和斜軸式（擺缸式）,如圖3-23所示為直軸式軸向柱塞泵的工作原理,這種泵主體由缸體1、配油盤2、柱塞3和斜盤4組成。柱塞沿圓周均勻分布在缸體內(nèi)。斜盤軸線與缸體軸線傾斜一角度,柱塞靠機(jī)械裝置或在低壓油作用下壓緊在斜盤上（圖中為彈簧）,配油盤2和斜盤4固定不轉(zhuǎn),當(dāng)原動(dòng)機(jī)通過傳動(dòng)軸使缸體轉(zhuǎn)動(dòng)時(shí),由于斜盤的作用,迫使柱塞在缸體內(nèi)作往復(fù)運(yùn)動(dòng),并通過配油盤的配油窗口進(jìn)行吸油和壓油。如圖3-23中所示回轉(zhuǎn)方向,當(dāng)缸體轉(zhuǎn)角在π～2π范圍內(nèi),柱塞向外伸出,柱塞底部缸孔的密封工作容積增大,通過配油盤的吸油窗口吸油;在0～π范圍內(nèi),柱塞被斜盤推入缸體,使缸孔容積減小,通過配油盤的壓油窗口壓油。缸體每轉(zhuǎn)一周,每個(gè)柱塞各完成吸、壓油一次,如改變斜盤傾角,就能改變柱塞行程的長度,即改變液壓泵的排量,改變斜盤傾角方向,就能改變吸油和壓油的方向,即成為雙向變量泵。
A10VSO140DFLR1/31R-PPB12KO1,A10VSO45DFR1/31R-PPA12N00,A10VS0100DR/31R-PPA12N00
A10VS0100DR/32R-VPB22(12)U99(N,A10VS018DR/31R-PPA12N00,A10V028DR/31R-PSC12N00
A10VSO71DFR1/31R-PPA12N00,A10VG18HD1/10L-NSC16N003E,A10VS028DR/31R-PPA12N00
A10VS045DR/31R-PPA12K25,A10VSO045DR/31R-PPA12N00,A10VSO71DFR1/31R-PPA12KB5
A10VSO28DRF1/31R-PSA12N00,A10VSO100DFR1/31R-PPA12K,A10VSO100DFR1/31R-PPA12KB3
A10VS010DR,A10VSO71DFR/31R-PSC62K07,A10VS045DFR1/31RPPA12NOO
A10V071DFRI/34 PSC6402-S0225,A10VSO-140DR/31R-PPB12N00,A10VS0-71FR1/31R-PPA12N00
A10VS071DFR1/31R-PPB12NOO,MA10VSO100PFR1/31R-PPA12N00,E-A10VSO140DFR1/31R-PPA12N00
E-A10VSO71DFR1/31R-PPA12N00,E-A10VSO45DFR1/31R-PPA12N00,E-A10VSO28DFR1/31R-PPA12N00
A10VO 71DFR1/31RPSC62K07,A10VSO140DFR1S/31RPPB12N0,A10VSO18DFR1/31R-PPA12N00
A10VSO71DFR/31R-PPA12KB3,A10VSO28DFR/31R-PSA12N00,A10VSO18DFR1/31R-PPB12NOO
A10VSO140DFR1/31R-PPB12NOO,A10VS28DR/31L-PPA12K001+ AZPF,A10V028DR/31K-PSC62K01
A10VS28DR\31L-PPA12K01+A2PF-1X,A10VS045DFR/31R-PPA12NOO-SO32
A10V071DFRI/34 PSC6402-S0225,A10VSO2BDR/30R-PPA/2,A10VS0140DFLR/31R-PPB12N00
A10VSO28DR/32R-PPA121V00,A10VSO18DFR1/31R-PPA12N00,A10VSO28DR/32R-PPA121V00
A10VG45EP20/10L-NTC10F025CSL,A10VSO100DFR/31RPSB12K24,A10VS045DR/31R-PPA12N00
A10VSO100DR/31R-VPA12N00,A10VS0100DFR1/31R-PPA12N00,A10V071DFRI/34 PSC6402-S0225
A10VSO140DR/31R-PPB12NOO,A10VS045DR/52R-PC12N00,A10VS180FR1/31R-PPA12N00,
A10V045DFR1/31R-PSC62K02,A10VO28DFR1/31L-PSC62N00,A11VL0190LRDU2+A10V028DR/31-KK
A10VO28DFR1/31L-PSC62N00,A10V045DFR1/31R-PSC62K02,A10VS028DFR1/51R-PSC12N00-L
A4VG125EP2/32+A10V028DR/31,A10VS071DFR1/31R-PPA12N00,A10VS028DR/31R-PPA12N00
A10VS0180DR/31R-PPA12KD1,A10VS071DFR/31R-PPA12N00,A10VS0140DRS/32R-VPB12N00
A11VL0190+A10V028+G2,A10VSO18DFR1/31R-PPA12N00,A10VSO140DFR1/31R-PPB12N00
A10VS0140DR/32R-PPA12N00,AE-A10VSO140D/31R-PPB12N00,A10VS0100DR/31R-PTA12N00
A10V028DR/31R-PSC62K01,A10V028DFR1/31R-PSC62N00,A11VL0190LRDU2+A10V028DR/31-KK
A10VG45EZ2DM1/10L-NTC10F023SHK,A10VG45EZ2DM1/10R-NSC10F013DH
A10V028DFR/31L-PSC12K01+,A10VG63EP11/10R-NSC10F003D-S,EA10VS071-DR/31R-PPA12N00
A10VSO 18 DFRI/31R-PPA12N00,A10VS045DR/31RPPB12-NDD,A10V071DFRI/34 PSC6402-S0225,A10VS028DR/31L A12G20+1PF2G2,A11VLO260LRDL.H2/10+A10V028
A11VL190LRDL.H2/10+A10V028,A10VO28DR/31R-PSC62K01-S1581 CORE
A10VSO100 DR /32R-VPB12N00,A10VSO100 DFR1/32R-VPB12N00 -S1439
A10VSO140DRS /32R-VPB22U99,A10VSO140DR/31R-PPB12N00
|
