詳細(xì)介紹
結(jié)構(gòu)形式
柱塞泵分為軸向柱塞泵和徑向柱塞泵兩種代表性的結(jié)構(gòu)形式;柱塞缸由于徑向柱塞泵屬于一種新型的技術(shù)含量比較高的高效泵,隨著國產(chǎn)化的不斷加快,徑向柱塞泵必然會成為柱塞泵應(yīng)用領(lǐng)域的重要組成部分。
軸向柱塞泵是利用與傳動軸平行的柱塞在柱塞孔內(nèi)往復(fù)運動所產(chǎn)生的容積變化來進(jìn)行工作的。由于柱塞和柱塞孔都是圓形零件,加工時可以達(dá)到很高的精度配合,因此具有容積效率高,運轉(zhuǎn)平穩(wěn),流量均勻性好,噪聲低,工作壓力高等優(yōu)點,但對液壓油的污染較敏感,結(jié)構(gòu)較復(fù)雜,造價較高。
柱塞泵的泵油機構(gòu)包括兩套精密偶件:柱塞+柱塞套構(gòu)成柱塞偶件、出油閥和出油閥座構(gòu)成出油閥偶件
柱塞和柱塞套是一對精密偶件,經(jīng)配對研磨后不能互換,要求有高的精度和光潔度和好的耐磨性,其徑向間隙為0.002~0.003mm
柱塞頭部圓柱面上切有斜槽,并通過徑向孔、軸向孔與頂部相通,其目的是改變循環(huán)供油量;柱塞套上制有進(jìn)、回油孔,均與泵上體內(nèi)低壓油腔相通,柱塞套裝入泵上體后,應(yīng)用定位螺釘定位。
柱塞頭部斜槽的位置不同,改變供油量的方法也不同。
出油閥和出油閥座也是一對精密偶件,配對研磨后不能互換,其配合間隙為0.01mm 。
出油閥是一個單向閥,在彈簧壓力作用下,閥上部圓錐面與閥座嚴(yán)密配合,其作用是在停供時,將高壓油管與柱塞上端空腔隔絕,防止高壓油管內(nèi)的油倒流入噴油泵內(nèi)。
出油閥的下部呈十字?jǐn)嗝?,既能?dǎo)向,又能通過柴油。出油閥的錐面下有一個小的圓柱面,稱為減壓環(huán)帶,其作用是在供油終了時,使高壓油管內(nèi)的油壓迅速下降,避免噴孔處產(chǎn)生滴油現(xiàn)象。當(dāng)環(huán)帶落入閥座內(nèi)時則使上方容積很快增大,壓力迅速減小,停噴迅速。
德國力士樂柱塞泵型號:
A10VSO18DFR1/31R-PPA12N00
A10VSO18DFR1/31R-PPB12N00
A10VSO18DFR1/32R-VPB12N00
A10VG18HD1/10L-NSC16N003E
A10VSO18DFR1/31R-PPA12N00
A10V028DR/31R-PSC12N00
A10VS028DR/31R-PPA12N00
A10VSO28DR/32R-VPB121N00
A10VSO28DFR/31R-PSA12N00
A10VSO28DFR1/31R-PPA12N00
A10VSO28DFR1/32R-VPB12N00
A10VSO28DRF1/31R-PSA12N00
E-A10VSO28DFR1/31R-PPA12N00
A10VSO28DR/31R-PSC12N00
A10V028DR/31R-PSC62K01
A10V028DFR1/31R-PSC62N00
A10VSO45DFR1/31R-PPA12N00
A10VSO45DFR1/32R-VPB12N00
A10VSO45DR/31R-PPA12N00
A10VSO45DR/31R-PPA12K25
A10VSO45DFR1/31R-PPA12N00
A10VSO58DFR1/31R-PPA12N00
A10VS045DFR1/31RPPA12NOO
E-A10VSO45DFR1/31R-PPA12N00
A10VS045DFR/31R-PPA12NOO-SO32
A10VS045DR/31R-PPA12N00
A10VS045DR/52R-PC12N00
A10V045DFR1/31R-PSC62K02
A10VSO45DFR1/31R-PPA12N00
A10VS045DR/31RPPB12-NDD
A10VO45DFR1/31R-PSC62K02
A10VSO71DFR1/32R-VPB22U99
A10VSO71DFR1/31R-PPA12N00
A10VSO71DFR1/32R-VPB12N00
A10VSO71DFR1/31R-PPA12KB5
A10VSO71DFR/31R-PSC62K07
A10VO71DFRI/34 PSC6402-S0225
A10VSO71FR1/31R-PPA12N00
A10VSO71DFR1/31R-PPB12NOO
E-A10VSO71DFR1/31R-PPA12N00
A10VO71DFR1/31RPSC62K07
A10VSO71DFR/31R-PPA12KB3
A10VS071DR/31R-PPA12N00
A10VS071DFR/31R-PPA12N00
A10VS071DFR1/31R-PPA12N00
A10VSO71DFR1/31R-PPA12N00
A10VSO71DFR1/32R-VPB22U99
EA10VSO71DR/31R-PPA12N00
A10VS0100DR/31R-PPA12N00
A10VS0100DR/32R-VPB22U99
A10VSO100DFR1/32R-VPB12N00
A10VSO100DFR1/31R-PPA12K
A10VSO100DFR1/31R-PPA12KB3
EA10VSO100PFR1/31R-PPA12N00
A10VSO100DFR/31RPSB12K24
A10VSO100DR/31R-VPA12N00
A10VSO100DR/31R-PPA12N00
A10VS0100DFR1/31R-PPA12N00
A10VS0100DFR1/32R-VPB12N00
A10V0100DR/31R-PSC11N00
A10VS0100DR/31R-PTA12N00
A10VSO100DR/31R-PPA12N00
A10VSO100DFR1/32R-VPB12N00
A10VSO140DFR1/31R-PPB12N00
A10VSO140DFLR1/31R-PPB12KO1
A10VSO-140DR/31R-PPB12N00
A10VSO140DFR1S/31RPPB12N0
A10VSO140DFR1/31R-PPB12N00
A10VS0140DFLR/31R-PPB12N00
A10VSO140DR/31R-PPB12N00
A10VS0140DRS/32R-VPB12N00
E-A10VSO140D/31R-PPB12N00
A10VSO140DFR1/31R-PPB12N00
A10VS0140DR/32R-VPB12N00
AE-A10VSO140D/31R-PPB12N00
A10VSO140DR/31R-PPB12N00
A10VSO140DRS/32R-VPB12N00
A10VSO140DFR1/31R-PPB12N00
A10VSO140DFR1/32R-VPB12N00
A10VSO140DRS/32R-VPB12N00