直供德產(chǎn)BOSCH液壓泵,原裝rexroth4WE10J3X/CG24N9K4液壓泵 A10VS018DR/31R-PPA12N00 A10VSO18DR/31R-PPA12N00 A10VSO18DFR1/31R-PPA12N00 A10VSO18DFR1/31R-PPB12NOO
直供德產(chǎn)BOSCH4WE10J3X/CG24N9K4液壓泵,原裝rexroth液壓泵
直供德產(chǎn)BOSCH4WE10J3X/CG24N9K4液壓泵,原裝rexroth4WE10J3X/CG24N9K4液壓泵
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A10VS018DFR1/31R-PPB12N00
A10VS018DR/31R-PPA12N00
A10VSO18DR/31R-PPA12N00
A10VSO18DFR1/31R-PPA12N00
A10VSO18DFR1/31R-PPB12NOO
A10VS018DFR1/31R-PPB12NOO
A10VSO18DR/31R-PPA12N00
A10VSO28DR/31R-PPA12N00
A10VS028DR/31R-PPA12N00
A10VO28DR/31R-PSC12N00
A10VSO28DRF1/31R-PSA12N00
E-A10VSO28DFR1/31R-PPA12N00
A10VSO28DFR1/31R-PPA12N00
A10VS028DFR1/31R-PPA12N00
A10VSO28DFR/31R-PSA12N00
直供德產(chǎn)BOSCH4WE10J3X/CG24N9K4液壓泵,原裝rexroth4WE10J3X/CG24N9K4液壓泵
缸體加溫?zé)嵫b或銅套低溫冷凍擠壓,過(guò)盈裝配;
(b)采有樂(lè)泰膠粘著裝配,這咱方法要求銅外套外徑表面有溝槽;
(c)缸孔攻絲,銅套外徑加工螺紋,涂樂(lè)泰膠后,旋入裝配。
(2)熔燒結(jié)合方式的缸體與銅套,修復(fù)方法如下:
(a)采用研磨棒,手工或機(jī)械方法研磨修復(fù)缸孔;
(b)采用座標(biāo)鏜床,重新鏜缸體孔;
(c)采用鉸刀修復(fù)缸體孔。
A8VO55,A8VO80,A8VO107,A8VO160 2, A2F系列:A2F23,A2F28,A2F55,A2F80,A2F107,A2F160 3, A4VSO系列:A4VSO40,A4VSO45,A4VSO56,A4VSO71,A4VSO125,A4VSO180,A4VSO250,A4VSO355 4,A4VG系列:A4VG28,A4VG45,A4VG50,A4VG56,A4VG71,A4VG125,A4VG180,A4VG250 5,A6V系列:A6V55,A6V80,A6V107,A6V160,A6V225,A6V250 6, A7V系列:A7V16,A7V28,A7V55,A7V80,A7V107,A7V160,A7V200,A7V250 7, A8V系列:A8V55,A8V80,A8V107,A8V115,A8V172 8,A10VSO系列:A10VSO28,A10VSO43,A10VSO45
REXROTH柱塞泵上供油,當(dāng)上行到柱塞上的斜槽(停供邊)與套筒上的回油孔相通時(shí),泵油室低壓油路便與柱塞頭部的中孔和徑向孔及斜槽溝通,油壓驟然下降,出油閥在彈簧力的作用下迅速關(guān)閉,停止供油。此后柱塞還要上行,當(dāng)凸輪的凸起部分轉(zhuǎn)過(guò)去后,在彈簧的作用下,柱塞又下行。此時(shí)便開(kāi)始了下一個(gè)循環(huán)。 結(jié)論:通過(guò)上述討論,得出下列結(jié)論
① 柱塞往復(fù)運(yùn)動(dòng)總行程L是不變的,由凸輪的升程決定。
② 柱塞每循環(huán)的供油量大小取決于供油行程,供油行程不受凸輪軸控制是可變的。
③ 供油開(kāi)始時(shí)刻不隨供油行程的變化而變化。
④ 轉(zhuǎn)動(dòng)柱塞可改變供油終了時(shí)刻,從而改變供油量。