德国力士乐柱塞泵A6VE28EP2/63W-NAL027HPB
油箱中液面过低,进油管漏气,滤油器堵塞等。(6)铸铁泵壳有砂眼或焊接不良。进油过程回油过程(1)输出压力过低(1)机械振动和噪声当凸轮轴转到凸轮的凸起部分顶起滚轮体时,柱塞弹簧被压缩,柱塞向上运动,燃油受压,一部分燃油经油孔流回喷油泵上体油腔。当柱塞顶面遮住套筒上进油孔的上缘时,由于柱塞和套筒的配合间隙很小(0.0015-0.0025mm)使柱塞顶部的泵油室成为一个密封油腔,柱塞继续上升,泵油室内的油压迅速升高,泵油压力>出油阀弹簧力+高压油管剩余压力时,推开出油阀,高压柴油经出油阀进入高压油管,通过喷油器喷入燃烧室。1.液压泵输出流量不足或不输出油液进油管道太细、进油滤油器通流能力过小或堵塞、进油管吸入空气、油液豁度过高、油面过低吸油不足和高压管道中产生液。 将会引起共振,可改变泵的转速以消除共振,3.输出流量波动进油管道太细,进油滤油器通流能力过小或堵塞,进油管吸入空气,油液豁度过高,油面过低吸油不足和高压管道中产生液击等,均会产生噪声,因此,必须正确设计油箱。
A4VG28,A4VG40,A4VG56,A4VG71,A4VTG90,A4VG90,A4VG125,A4VG180,A4VG250
R902066878 A11VO95HD2D/10L-NSD12K01
R902073653 A6VE80HA3T/63W-VAL22XB-S
R902087930 A4VG125EP2D1/32L-NZF02F001SP-S
A7V250等力士乐Bosch
A2FO12/61L-PZB06 REXROTH力士乐
A11VLO260EP2/11R-NPD12K02
R902052578 A4VG28EZ1DT1/32R-NSC10F013SH-S
R902101413 A6VM140EPX/63W-VZB017FXB-S
R902092187 A6VE107HA1T/63W-VZL527A-ES
R902092051 A6VE107HZ3/63W-VZL020B-E
R902022647 A4VG71HWD1/32R-NSF02F001S
A2FM107/61W-VAB181 + REXROTH力士乐
R910946867 AA10VSO71DR/31R-PPA12N00-SO13
R909607279 A11VO95LG1DS/10R-NZD12K02
力士乐柱塞泵:A2FO10、A2FO12、A2FO16、A2FO23、A2FO28、A2FO32、
R902088485 A11VO60DR/10R-NPC12K52
R902050063 A11VLO260DRS/11L-NTD12K02-S
A10VSO71DFR1/32R-PPA12N00
德国力士乐柱塞泵A6VE28EP2/63W-NAL027HPB
严重时,缸体可能破裂,则应重新研磨配合面或更换液压泵。振动和噪声是同时出现的。它们不仅对机器的操作者造成危害,也对环境造成污染。柱塞向上供油,当上行到柱塞上的斜槽(停供边)与套筒上的回油孔相通时,泵油室低压油路便与柱塞头部的中孔和径向孔及斜槽沟通,油压骤然下降,出油阀在弹簧力的作用下迅速关闭,停止供油。此后柱塞还要上行,当凸轮的凸起部分转过去后,在弹簧的作用下,柱塞又下行。此时便开始了下一个循环。(1)机械振动和噪声2.中位时排油量不为零当凸轮的凸起部分转过去后,在弹簧力的作用下,柱塞向下运动,柱塞上部空间(称为泵油室)产生真空度,当柱塞上端面把柱塞套上的进油孔打开后,充满在油泵上体油道内的柴油经油孔进入泵。 3.输出流量波动柱塞泵是往复泵的一种,属于体积泵,其柱塞靠泵轴的偏心转动驱动,往复运动,其吸入和排出阀都是单向阀,当柱塞外拉时,工作室内压力降低,出口阀关闭,低于进口压力时,进口阀打开,液体进入,柱塞内推时。A6VE28EP2/63W-NAL027HPB
R902103678 A11VLO190LRDU2/11R-NZD12K01P-K
力士乐柱塞泵:A7V16、A7V28、A7V55、A7V80、A7V107、A7V160、A7V200、
A4VSO71DRG/10X-PPB13N00
R902027513 A11VLO190LRDS/11L-NZD12N00-S
R900760987 ABHAG-0250SSO/E-A10VSO71/160L/61012B616A
R902035318 A6VE107EZ3/63W-VZL027B
R902400359 A AA10VSO 71 DFR /31R-PKC92K01 -SO 13 814232422 3,418.00
R902062712 A11VO75EP2/10R-NZD12K81H *G*
R902066602 A11VO260LRD/11L-NPD12K07
A4VSG500HD1DT/22R-PPH10H009N
2FRM 6 SB36-3X/10QMV
A2FM63/61W-VAB040 9408526
R909604588 A6VM55EZ3/63W-VAB020B
R902064733 A4VG125EP2D1/32R-NSF02F041MH
R902016140 A11VO190DRL/11R-NPD12N00
R909608387 A11VO130DR+A11VG19EP2
R902011766 A6VE28HA1U1/63W-VAL020A
R902401400 A A10V O 45 DRG /31R-PUC62K01 814232121 1,804.00
A11VO190DRS/11R-NZD12N00 REXROTH力士乐
R900891704 DICHTUNGSSATZ PV7-1X/10M力士乐Rexroth
R902090472 A6VE160HD1D/63W-VZL380B-SK
A4VSO250LR2N/30R-PPB13N00
R902087764 A4VG125HD1D1/32L-NAF02F041S
R902401142 AH A10V O 71 DFR1/31L-PSC92N00 814232122 2,629.00
R902113138 A4VG71EP4D1/32L-NZF10F021SP-S
R902097537 A11VLO190HD1/11L-NZD12K24
R909606838 A11VO130LRD/10L-NPD12N00
R902401186 A A10V O 71 DFR /31L-VSC94N00 814232122 2,417.00
R902096413 A11VO60HD1/10L-NZC12K04
940936 A10VSO 28 DFLR /31R-PPA12N00
A10VG18HD1/10L-NSC16N003E
R902083628 A11VO145LE2S/11R-NZD12N00P
R902060965 A4VG125HD1DT2/32R-NTF02F071F-S
AB21-11/16-040-1-1X/M REXROTH力士乐
R902054275 A6VM28DA2/63W-VZB017HB
德国力士乐柱塞泵A6VE28EP2/63W-NAL027HPB
泵的排量少,这需要调节变量活塞,增加斜盘倾角。进油管道太细、进油滤油器通流能力过小或堵塞、进油管吸入空气、油液豁度过高、油面过低吸油不足和高压管道中产生液击等,均会产生噪声。因此,必须正确设计油箱,正确选择滤油器、油管和方向阀。(1)输出压力过低泵的输出压力是由负载决定的,与输入转矩似成正比。输出压力异常有两种故障。1.液压泵输出流量不足或不输出油液进油过程柱塞泵是往复泵的一种,属于体积泵,其柱塞靠泵轴的偏心转动驱动,往复运动,其吸入和排出阀都是单向阀。当柱塞外拉时,工作室内压力降低,出口阀关闭,低于进口压力时,进口阀打开,液体进入;柱塞内推时,工作室压力升高,进口阀关闭,高于出口压力时,出口阀。 在控制活塞上划出阶痕,磨痕,伤痕等,造成控制活塞运动不稳定,由于放大器能量不足或零件损坏,含有弹簧的控制活塞的阻尼器效能差,都会造成控制活塞运动不稳定,流量不稳定又往往伴随着压力波动,这类故障一般要拆开液压泵。A6VE28EP2/63W-NAL027HPB
R902053527 A4VG125EP2D1/32L-NSF02F001ST-S
A4VSO125DFR/30R-PPB13N00 REXROTH力士乐
R902400433 AL A10V O 71 DR /31R-VSC94N00 814232122 2,374.00
R909609852 A11VO130LRH2/10R-NSD12N00
R902063386 A11VO260EP2D/11L-NZD12N00H-S
R902065703 A6VE107EP1/63W-VZU027FHA-S
R902102920 A6VE80HA2R2/63W-VSL527FTA-S
R902033381 A6VM107HA1/63W-VZB370A-K
R902084781 A11VLO260EP2D/11L-NSD12K72H
R902101369 A6VE55EZ4/63W-VZL017HB
R902108045 A11VLO190LE2S/11+A10VO45DFR1/31-K
R902063411 A11VO260EP2D/11R-NZD12K07H-S
R902055264 A4VG71EZ2DM1/32R-NSF02K011EH-S
A10VSO140DFR1S/31R-PPB12N00
R902412267 AA7VO250HD1D/63R-VPB01
R902107729 A6VM140HA1T/63W-VZB380A-S
R902090265 A6VE55HZ3/63W-VZL020FB-SK
R902103971 A11VO260LRDCH1+A11VO260LRDCH1
R902051350 A11VLO190LRDH1/11R-NZD12K02-K
◆ 压力范围广;
A4VG90EP2DT1/32R-NAF02F011FH-K + REXROTH力士乐
R902048509 A11VLO260HD1/11R-NSD12N00
R902043796 A8VO107SR/61R1-NZG05K010-K
R902066557 A11VLO190EP2G/11L-NSD12K01H-S
R902060968 A4VG125HD1DT1/32L-NZF02F001S
R902035454 A6VE107EZ4/63W-VZU027DB-SK
R902066280 A11VLO260DRS/11R-NSD12N00-S
R902087668 A4VG125EP2MT1/32R-NSF02F001SP-S
A11VO75LRH2/10R-NSD12N00
R900058968 A7VO55EP/63R-NZB01
R902000192 A6VE160HA1/63W-VZL027A
德国力士乐柱塞泵A6VE28EP2/63W-NAL027HPB
其柱塞靠泵轴的偏心转动驱动,往复运动,其吸入和排出阀都是单向阀。当柱塞外拉时,工作室内压力降低,出口阀关闭,低于进口压力时,进口阀打开,液体进入;柱塞内推时,工作室压力升高,进口阀关闭,高于出口压力时,出口阀打开,液体排出。当传动轴带动缸体旋转时,斜盘将柱塞从缸体中拉出或推回,完成吸排油过程。柱塞与缸孔组成的工作容腔中的油液通过配油盘分别与泵的吸、排油腔相通。变量机构用来改变斜盘的倾角,通过调节斜盘的倾角可改变泵的排量。液压泵过度发热有两个原因,一是机械摩擦生热。由于运动表面处于干摩擦或半干摩擦状态,运动部件相互摩擦生热。二是液体摩擦生热。高压油通过各种缝隙泄漏到低压腔,大量的液压能损失转为热。 被广泛应用于高压,大流量和流量需要调节的场合,诸如液压机,工程机械和船舶中,当泵在自吸状态下,若进油管路漏气或系统中液压缸,单向阀,换向阀等有较大的泄漏,均会使压力升不上去,这需要找出漏气处,紧固,更换密封件。A6VE28EP2/63W-NAL027HPB
AS63/006-000 REXROTH力士乐
R902064744 A4VG125HD1DMT1/32R-NAF02F001D-S
948654 A10VSO 71 DFLR /31R-PPA12N00
R902103600 A11VLO260LR/11R-NZD12K67-S
R902102062 A4VG125EP2D1/32R-NZF02F011FP-K
R902073448 A11VO75LRDU2/10R-NPD12N00VH-S
R902101274 A8VO107LA1KH3/63R1-NZG05K070
R909604371 A6VE80HA2/63W-VAL020A
R902046590 A11VO190DRS/11R-NZD12N00V
R902036582 A6VM107HDX/63W-VXB017B-S
R902069308 A11VLO260LRDS+A11VLO190LRDS
R902073592 A6VE28EZ2/63W-VAL020DHB-S
R902081042 A11VLO145DRS/11L-NSD12KXX-S
R909601807 A11VO75LRD/10R-NPD12N00
2FRM 6 B36-3X/1,5QMV
R902104144 A11VO75LE2S2/10R-NZD12N00P
A2FM23/61W-VAB040 9428415
R902055640 A4VG125HW/32+A4VG56EZ1/32
R902083689 A11VO60EP2D/10R-NZC12N00P
R902094005 A4VG125HD1DT1/32L-NSF02F011S-K
R902077344 A6VE55HA1/63W-VZL020A-S
R902074945 A11VO190LRDU2/11R-NPD12K17H
R900834192 ABZPZ-S1X/B35-225/0-A10VSO140P/JH-AL/M
R902113117 A4VG71EP4DT4/32R-NTF02F001SH-S
PVV51-1X/162-036RB15DDMC,PVV51-1X/193-027RA15DDMC
R902036515 A6VE107HA1/63W-VZL020A
A4VG125DA2D2/32R-NAF02F021
力士乐叶片泵PVQ系列:PVQ1、PVQ2、PVQ3、PVQ4、PVQ5
R902063384 A11VO60LRDU2/10R-NZC12K61H
R902057383 A6VE107EP1/63W-VZU027DHB-S
A10VSO18DR/31R-VPB12N00
R902056176 A4VG125DA2/32+A11VO95DRG/10
R902042960 A11VO60LRDH1/10R-NSC12K52
R902088414 A11VLO145LRDS/11R-NZD12N00R
R902047471 A8VO140LA1H2S/63R1-NZG05F004
R902071569 A11VO40EP2D/10R-NZC12K01H
R902103883 A4VG125HWDT2/32R-NSF02F021F-S
R902401415 A A10V O 45 DRG /31R-PKC62N00 814232121 1,653.00
A11VO95DRS/10R-NPD12N00
力士乐柱塞泵:A4VG28、A4VG45、A4VG50、A4VG56、A4VG71、A4VG125、
R902092281 A6VE107HA1T/63W-VZL02XA-ES
R902067029 A11VO75DRG/10R-NSD12N00