上海韋米機(jī)電設(shè)備有限公司

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Shanghai Wei-Mi Techonology Co., LTD
主營:REXROTH電磁閥,ATOS比例閥,PARKER柱塞泵,DUPLOMATIC齒輪泵,VICKERS葉片泵,BENTLY傳感器,AIRTEC機(jī)械閥,AVENTICS氣動閥

鋁道網(wǎng)  >  鋁設(shè)備 >  熔鋁設(shè)備  > 磁電設(shè)備  > A11VO95LRDS/10R-NSD12N00挖掘機(jī)液壓泵

A11VO95LRDS/10R-NSD12N00挖掘機(jī)液壓泵

價格

800 元/個

  • 最小起訂量: 3
  • 所在地:上海 上海
  • 供貨總量: 90
  • 發(fā)布時間:2024-12-23

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產(chǎn)品描述

A11VO95LRDS/10R-NSD12N00挖掘機(jī)液壓泵 德國博世力士樂REXROTH液壓泵 液壓元件

庫存大量REXROTH柱塞泵A10VSO,齒輪泵PGH4\5,PGF1/PGF2/PGF3,電磁閥4WE,電子變量泵SYDFEE-2X,電液比例控制閥0811,電液換向閥4WEH、4WE,減壓閥DR10、DR20、疊加閥ZD、Z1S、Z2S,ZDR電磁溢流閥DBW,直動式溢流閥DBD、0532,先導(dǎo)溢流閥DB10、DB20,電磁球閥M-S、M-3S,力士樂電液比例控制閥\放大器、壓力繼電器0811,伺服驅(qū)動,電機(jī)

A11VO95LRDS/10R-NSD12N00挖掘機(jī)液壓泵

液壓泵內(nèi)部結(jié)構(gòu)圖

柱塞泵:容積效率高、泄漏小、可在高壓下工作、大多用於大功率液壓系統(tǒng);但結(jié)構(gòu)復(fù)雜,材料和加工精度要求高、價格貴、對油的清潔度要求高。

一般在齒輪泵和葉片泵不能滿足要求時才用柱塞泵。還有一些其他形式的液壓泵,如螺桿泵等,但應(yīng)用不如上述3種普遍。

特點(diǎn)

鋁合金制造、強(qiáng)度高、耐腐蝕、重量輕、適合各種環(huán)境下作業(yè)。

雙速特性減少了打壓次數(shù),在低壓室快速處于負(fù)載用功狀態(tài),立刻轉(zhuǎn)換成高壓,縮短每次作業(yè)周期。

配有壓力調(diào)節(jié)閥,可調(diào)節(jié)控制及設(shè)定工作壓力。組成

液壓機(jī)械行業(yè)常會用到的葉片泵

聯(lián)軸器

1、聯(lián)軸器的選用

液壓泵傳動軸不能承受徑向力和軸向力,因此不允許在軸端直接安裝帶輪、齒輪、鏈輪,

通常用聯(lián)軸器聯(lián)接驅(qū)動軸和泵傳動軸。如因制造原因,泵與聯(lián)軸器同軸度超標(biāo),裝配時又存在偏差,則隨著泵的轉(zhuǎn)速提高離心力加大聯(lián)軸器變形,變形大又使離心力加大。造成惡性循環(huán),其結(jié)果產(chǎn)生振動噪聲,從而影響泵的使用壽命。此外,還有如聯(lián)軸器柱銷松動未及時緊固、橡膠圈磨損未及時更換等影響因素。

2、聯(lián)軸器的裝配要求

剛性聯(lián)軸器兩軸的同軸度誤差≤0.05mm

彈性聯(lián)軸器兩軸的同軸度誤差≤0.1mm

兩軸的角度誤差<1?;

驅(qū)動軸與泵端應(yīng)保持5~10mm距離;

挖掘機(jī)是工程機(jī)械主力機(jī)種,是建設(shè)工程的主要生產(chǎn)工具,因此對挖掘機(jī)提出了很高的要求。要求節(jié)能低排放、**率、良好的操縱性和降低對環(huán)境的負(fù)荷等,要實現(xiàn)這些要求必須對挖掘機(jī)進(jìn)行控制,由于液壓控制信息處理能力差,不能光靠液壓控制主要要靠電子控制。液壓動力由液壓泵提供,要知道液壓泵是挖掘機(jī)液壓系統(tǒng)的能源裝置,將電機(jī)的機(jī)械能轉(zhuǎn)換為液壓能,輸出流量和壓力,在液壓系統(tǒng)中占有非常重要的地位。如果液壓泵出現(xiàn)故障,將會影響到整個液壓系統(tǒng)的正常工作。

挖掘機(jī)液壓泵流量調(diào)整方法與壓力調(diào)整方法

一、液壓泵流量的調(diào)整

1、主泵流量的調(diào)整

(1)神鋼挖掘機(jī)200松開流量鎖緊螺母;

(2)轉(zhuǎn)動壓力調(diào)整螺栓,直到壓力符合規(guī)定為止;

(3)當(dāng)系統(tǒng)壓力在14700一17700kPa范圍內(nèi)時,順時針轉(zhuǎn)動流量調(diào)整螺栓1/4圈,流量增加約18L/min,此時較好級彈簧起作用。當(dāng)系統(tǒng)壓力在23500一34300kPa范鬧內(nèi)時,順時針轉(zhuǎn)動流量調(diào)整螺檢1/4圈,流量增加約7L/min,此時第二級彈簧起作用;

(4)若逆時針轉(zhuǎn)動流量調(diào)整螺栓,則流量減少相應(yīng)的數(shù)鎮(zhèn);

(5)擰緊流量鎖緊螺母,擰緊力矩為(12加或減3)N?m;

(6)上泵和下泵流量的調(diào)整方法相同。

2、中聯(lián)205挖掘機(jī)主泵較大流量的調(diào)整

(1)松開流量鎖緊螺母;

(2)擰動流量調(diào)整螺栓,直到流量達(dá)到較大值為止。順時針轉(zhuǎn)動流量調(diào)整螺栓1/49,流量約減少13L/min。逆時針轉(zhuǎn)動流量調(diào)整螺栓1/4圈,流量約增加13L/min;

(3)擰緊流量鎖緊螺母,擰緊力矩為10N?m。

3、反流量的調(diào)整

(1)松開流量鎖緊螺母口;

(2)擰動流量調(diào)整螺栓,直到流量達(dá)到較大鎮(zhèn)為止。順時針轉(zhuǎn)動流量調(diào)整螺栓1/4W.在系統(tǒng)壓力為2500kPa時,流量約減少41./-n:逆nJ針轉(zhuǎn)動流量調(diào)整螺栓1/4圈,流量約增加4L/min;

(3)擰緊流量鎖緊螺母,擰緊力矩為(12加或減3)N?m。

壓路機(jī)震動泵

R902071866 A11VO190LRDU2/11R-NZD12K01H-SK *AL* 

R902071867 A11VO190LRDU2/11R-NZD12K01H-SK 

R902073020 A11VO190/10 A11VO130/10 A11VO95 A11VO40 

R902073021 A11VO190LR3DH1/11R-NZD12K83 

R902073040 A11VO190DRS A11VO130DRS *AL* 

R902073041 A11VO190EP2D/11R-NZD12K61H 

R902073075 A11VO190DRS A11VO60DRS 

R902073113 A11VO190LRDH1/11 A10VO28DR/31-K 

R902073261 A11VO190DRG/11L-NTD12K02 

R902073306 A11VO190LRD/11L-NZD12K02 

R902073307 A11VO190LRDH1/11R-NSD12K01 

R902073415 A11VO190DRS A10VO140DFR1 

R902073416 A11VO190DRS/11L-VPD12K17-S 

R902073420 A11VO190LRGH6/11L-NZD12K84R-S 

R902073477 A11VO190DRS A11VO130DRS 

R902073478 A11VO190DRS/11L-NZD12K17 

R902073480 A11VO190LRDH1/11L-NZD12N00 

R902074449 A11VO190EP2 A11VO95EP2 

R902074450 A11VO190EP2D/11L-NZD12K82H 

R902074453 A11VO190LR/11R-NZD12K61 

R902074454 A11VO190LR A11VO190LR A11VO60DR 

R902074455 A11VO190DRS/11L-NZD12K24 

R902074543 A11VO190DR/11R-NPD12K01 

R902074547 A11VO190DRG/11R-NPD12K04 

R902074548 A11VO190DRG/11R-NPD12K04-K 

R902074560 A11VO190EP2G/11R-NPD12K01H-S 

R902074607 A11VO190HD1D/11R-NPD12K01 

R902074610 A11VO190LRDU2/11R-NPD12K02H 

R902074715 A11VO190DRS/11L-NPD12K61 

R902074716 A11VO190DRS2 A11VO60DRS A10VO45DFR1 

R902074729 A11VO190DRS A10VSO18DFR1 

R902074926 A11VO190DRS A11VO190DRS 

R902074927 A11VO190DRS/11R-NZD12K84 

R902074945 A11VO190LRDU2/11R-NPD12K17H 

R902074947 A11VO190EP2D/11L-NZD12K07H 

R902075635 A11VO190DRS/11R-NZD12K79 

R902075665 A11VO190LRDH2/11R-NZD12K01-K 

R902075683 A11VO190DRS A11VO130DRS 

R902075753 A11VO190LRDH2/11 A10VO28DR/31-K 

R902075765 A11VO190LRDU2/11R-NZD12K02H-K 

R902075798 A11VO190EP2G/11R-NPD12K24H 

R902075944 A11VO190LRDU2/11L-NZD12K82VH-S 

R902075985 A11VO190LRDU2/11R-NPD12N00H 

R902076542 A11VO190DRS/11R-NPD12K01 

R902076748 A11VO190EP2D/11L-NZD12K01H 

R902076750 A11VO190EP2D A11VO190EP2D 

R902076754 A11VO190DRS A11VO190DRS 

R902076859 A11VO190DRS/11L-NZD12K02 

R902077506 A11VO190HD1D/11L-NSD12K02 

R902077610 A11VO190LRD/11R-NZD12K01 

R902077611 A11VO190LRD/11R-NZD12K01-K 

R902077801 A11VO190LRDU2/11R-NZD12K07H-S 

R902077847 A11VO190DR/11L-NZD12K24 

R902079104 A11VO190LRDH2/11 A10VO45DR/31-K 

R902079105 A11VO190LRDH2/11R-NZD12K04 

R902079120 A11VO190LRD/11R-NPD12K04 

R902079157 A11VO190LRDU2/11 A11VO190LRDU2/11-K 

R902079165 A11VO190DRG/11R-NPD12K04-K 

R902079185 A11VO190LRH1/11R-NSD12K01 

R902080007 A11VO190LRDS A11VO60DR 

R902080041 A11VO190DRS A11VO145DRS 

R902081124 A11VO190LRDH1/11R-NSD12N00 

R902081184 A11VO190DRG/11R-NPD12K02-K 

R902081355 A11VO190HD1D/11L-NSD12K07 

R902081361 A11VO190LRDH1/11L-NSD12N00 

R902081410 A11VO190DRS A11VO190DRS 

R902081510 A11VO190LRDS/11L-NSD12N00 

R902081694 A11VO190DRX/11L-NZD12N00-S 

R902081837 A11VO190LR3DH1/11R-NZD12N00 

R902081948 A11VO190LRH2/11R-NZD12K02 

R902083042 A11VO190LRS/11R-NZD12K24-S 

R902083044 A11VO190LRS HA10VO100DFR 

R902083127 A11VO190LRDH1/11R-NZD12KXX-S 

R902083143 A11VO190EP2/11R-NPD12K01H 

R902083191 A11VO190DRS/11R-NZD12K24 

R902083192 A11VO190DRS/11R-NS12K17 

R902083193 A11VO190DRS A11VO130DRS 

R902083333 A11VO190LRS/11R-NSD12K17V-S 

R902083452 A11VO190EP2/11R-NPD12N00H 

R902083500 A11VO190LRDH2/11L-NZD12K01 

R902083501 A11VO190LRDH2/11L-NZD12K01-K 

R902083566 A11VO190LRDU2/11R-NZD12N00P 

R902083630 A11VO190LE2S/11R-NZD12N00P 

R902083694 A11VO190EP2D/11R-NZD12N00P 

R902083746 A11VO190LG1CS5 A10VO45DFLR 

R902083753 A11VO190LRD/11R-NPD12K01 

R902083754 A11VO190LRD/11R-NPD12K01-K 

R902084585 A11VO190LRDH1 A11VO190LRDH1 A11VO A11VO 

R902084615 A11VO190EP4S/11R-NZD12K07H-S 

R902084643 A11VO190EP2D/11L-NZD12N00H-S 

R902084785 A11VO190LRDS A11VO130LRDS 

R902084923 A11VO190LRDU2/11L-NZD12K82VH 

R902085568 A11VO190LRGU2/11R-NZD12N00VH-S 

R902085640 A11VO190DRS A11VO130DRS 

R902085723 A11VO190DRG/11R-NSD12K07 

R902085776 A11VO190LRS/11R-NPD12K84-S 

R902085839 A11VO190DR/11R-NPD12K02 

R902085876 A11VO190LRS/11R-NPD12N00-S 

R902087033 A11VO190EP2G/11R-NPD12K01H 

R902087099 A11VO190DRS/11 A4VG180EP2/32 

R902087565 A11VO190EP2/11R-NZD12N00H 

R902087566 A11VO190EP2 A11VO190EP2 *AL* 

R902087567 A11VO190EP2/11R-NZD12K84H 

R902087568 A11VO190EP2/11R-NZD12N00H 

R902087604 A11VO190LRGU2/11R-NZD12K02VH-S 

R902087655 A11VO190LRDS/11R-NPD12K01 

R902087849 A11VO190NV/11R-NZD12K24R-S 

R902087907 A11VO190LE2S/11R-NTD12K24P 

R902087915 A11VO190DRS A11VO130DRS 

R902087985 A11VO190LRDU2 A11VO190LRDU2 *AL* 

R902087986 A11VO190LRDU2/11L-NZD12K84VH-S 

R902087987 A11VO190LRDU2/11L-NZD12N00VH-S 

R902088033 A11VO190LRDH2/11 A10VO28DR/31-K 

R902088402 A11VO190DRS/11L-NZD12K07 

R902089029 A11VO190DRS/11R-NSD12N00 

R902089090 A11VO190DR A11VO190DR 

R902089091 A11VO190DR/11L-NZD12K84 

R902089092 A11VO190DR/11L-NZD12N00 

R902089102 A11VO190LRH2 A11VO130LRH2 

R902089103 A11VO190LRH2/11R-NPD12K17 

R902089104 A11VO190LRH2/11R-NSD12N00 

R902089478 A11VO190EP2D/11R-VPD12N00H-S 

R902089800 A11VO190DRL/11R-NZD12K61 

R902089801 A11VO190DRL/11R-NZD12K81 

R902090559 A11VO190DRG/11R-NZD12K17 

R902090580 A11VO190LRDS/11R-NXD12K07-S 

R902090707 A11VO190LRDH2 A11VO190LRDH2 

R902090708 A11VO190LRDH2/11L-NZD12K84 

R902090718 A11VO190LRDH2/11 A11VO190LRDH2/11-K 

R902090723 A11VO190LRDH2/11 A11VO190LRDH2/11-K 

R902090735 A11VO190LRDS/11L-NZD12N00-S 

R902090998 A11VO190LRD/11R-NZD12K84 

R902092335 A11VO190EP2/11L-NZD12K84H-ES 

R902092336 A11VO190EP2D/11L-NZD12N00H-ES 

R902092346 A11VO190EP2/11L-NZD12K02H-ES 

R902092685 A11VO190DRG/11R-NPD12N00-E 

R902094001 A11VO190LRD A11VO190LRD 

R902094116 A11VO190EP4S/11R-NZG12KXXH-S 

R902094325 A11VO190EP2S/11R-NSD12K17H-S 

R902094380 A11VO190DRS A11VO190DRGX 

R902094381 A11VO190DRS/11L-NZD12K84-S 

R902094404 A11VO190DRGX/11L-NZD12N00-S 

R902096016 A11VO190LRDS/11R-NSD12K02 

R902096086 A11VO190DRS/11R-NZD12K61 

R902096087 A11VO190DRS A4VG71EP2D1 A4VG71EP2D1 *AL* 

R902096100 A11VO190LR/11R-NZD12K07V 

R902096483 A11VO190LG1CS5 A10VO45DFLR 

R902097073 A11VO190DRS A11VO190LRDS 

R902097409 A11VO190LRCS/11R-NZG12K07 

R902097497 A11VO190EP2D/11R-NSD12K72H 

R902097819 A11VO190DRS/11R-NZD12N00R 

R902097976 A11VO190DRG/11R-NPD12K02-K 

R902100622 A11VO190LE2D/11 A11VO190LE2D/11-K 

R902100623 A11VO190LE2D/11R-NZG12K84P 

R902100624 A11VO190LE2D/11R-NZD12K01P 

R902100737 A11VO190DRS A10VO60ED73 

R902100738 A11VO190DRS/11L-VZD12K04-S 

R902100838 A11VO190LRDCH6/11L-NZD12N00 

R902100957 A11VO190EP2G/11R-NZD12K84P 

R902100958 A11VO190EP2G/11R-NZD12N00P 

R902100959 A11VO190EP2G/11R A11VO190EP2G/11R 

R902100970 A11VO190EP2G A11VO95EP2G 

R902100971 A11VO190EP2G A11VO130EP2G 

R902100972 A11VO190EP2G/11R-NZD12K17P 

R902102125 A11VO190LRDS/11L-NSD12K07 

R902102356 A11VO190EP4S/11R-NSG12KXXH-S 

R902103680 A11VO190LRDU2/11R-NZD12K01-K 

R902103886 A11VO190EP4S/11R-NZG12K17H-S 

R902104552 A11VO190LRDS/11R-NZD12K82 

R902104582 A11VO190LE2S/11R-NZD12K02H 

R902104925 A11VO190LRDS/11R-NSD12K07 

R902105047 A11VO190EP2G/11L-NZD12N00H-S 

R902105097 A11VO190LRDS/11R-NSD12K17-ES 

R902105098 A11VO190EP2S/11R-NSD12K17H-ES 

R902105149 A11VO190DR/11R-NSD12N00 

R902105164 A11VO190DRG/11R-XZD12N00-S 

R902105335 A11VO190DRG/11R-NZD12K84 

R902105336 A11VO190DRG/11 A4VG180HD1DM1/32 

R902106140 A11VO190DR/11R-NSD12K24 

R902106141 A11VO190DR/11L-NSD12K04 

R902106142 A11VO190DR/11L-NSD12K04-K 

R902106238 A11VO190LR A11VO130LR A11VO60DRS A11VO40 

R902106314 A11VO190EP2D/11R-NSD12K17H 

R902106339 A11VO190LRDH1/11R-NZD12KXX-S 

R902106352 A11VO190DRS A11VO145HD2D 

R902108047 A11VO190LRD/11R-NPD12K07 

R902108355 A11VO190DRS/11L-NZD12N00-S 

R902108379 A11VO190LRDS A11VO130DRS 

R902108380 A11VO190LRDS/11R-NPD12K83 

R902108399 A11VO190LE2S2/11R-NZG12N00P-S 

R902108415 A11VO190DRS/11R-NTD12K17-S 

R902110534 A11VO190LE2S/11R-NSD12K17H 

R902110951 A11VO190LR3S/11L-NSD12K07R 

R902112494 A11VO190EP2D/11R-NPD12K04RP 

R902112552 A11VO190DRG/11L-NTD12N00 

R902112555 A11VO190LRCS/11R-NZG12K07-S 

R902012178 A11VLO190LRDS/11L-NZD12N00 

R902012194 A11VLO190LRDS/11R-NZD12N00 

R902012579 A11VLO190DRS/11L-NSD12N00 

R902013688 A11VLO190DRS/11R-NZD12K02 

R902013824 A11VLO190LR3DS/11R-NZD12K04 

R902014644 A11VLO190LRDS/11R-NZD12KXX-S 

R902014789 A11VLO190DRS/11R-NZD12N00 

R902015194 A11VLO190LRS/11R-NSD12N00 

R902015195 A11VLO190LRS/11R-NPD12N00 

R902015196 A11VLO190LRS/11R-NSD12K02 

R902015197 A11VLO190LRS/11R-NPD12K02 

R902015252 A11VLO190DRS/11R-NSD12N00 

R902015253 A11VLO190DRS/11R-NPD12N00 

R902015254 A11VLO190DRS/11R-NSD12K02 

R902015255 A11VLO190DRS/11R-NPD12K02 

R902016408 A11VLO190HD1D/11L-NTD12K07 

R902017407 A11VLO190LE2S6/11R-NZD12N00-S *AL* 

R902018565 A11VLO190LG2DS/11L-NZD12N00-S 

R902021290 A11VLO190LRDH2/11R-NSD12K02 

R902021294 A11VLO190LRDH2/11L-NSD12K07 

R902021442 A11VLO190LRDS/11R-NSD12KXX-S 

R902021445 A11VLO190LRDS/11L-NTD12K72 

R902023004 A11VLO190EPXS/11L-NSD12K07-S *G* 

R902023045 A11VLO190LG1DH2/11L-NZD12N00 

R902023047 A11VLO190LRDH2/11L-NZD12K02 

R902023210 A11VLO190LRDU2/11R-NZD12K01 *G* 

R902025233 A11VLO190EP2D/11L-NSD12N00 *G* 

R902025374 A11VLO190LRDH2/11L-NTD12K07 

R902025375 A11VLO190LRDH2/11R-NTD12K02 

R902025376 A11VLO190DRS/11R-NTD12K02 

R902026927 A11VLO190LG2H2/11R-NZD12K84 

R902026928 A11VLO190LG2H2/11R-NZD12K07 

R902027513 A11VLO190LRDS/11L-NZD12N00-S 

R902027543 A11VLO190LRDS/11R-NPD12N00 

R902027948 A11VLO190LRDS/11L-NSD12N00-S 

R902027998 A11VLO190LG/11 A4VG71EP2/32 *G* 

R902027999 A11VLO190LG2H2/11L-NZD12K07 

R902028003 A11VLO190LG2H2/11L-NZD12K02 

R902028018 A11VLO190LG2H2/11L-NZD12KXX-S 

R902028212 A11VLO190LRDH1/11R-NZD12N00 

R902028216 A11VLO190LR/11R-NZD12N00 

R902028361 A11VLO190EP2G/11L-NZD12K02-S *G* 

R902029132 A11VLO190LRDC/11R-NZD12K84 

R902029133 A11VLO190LRDC/11R-NZD12N00 

R902029194 A11VLO190DRL/11R-NPD12N00 

R902029199 A11VLO190LRDC A11VLO190LRDC 

R902029358 A11VLO190LRDH2/11L-NSD12K01 

R902030100 A11VLO190LRDH2/11R-NSD12K04 

R902030113 A11VLO190LRDS/11R-NSD12K02 

R902030127 A11VLO190LRDS/11R-NSD12K01 

R902030167 A11VLO190LE4S5/11R-NZG12K01-S 

R902030239 A11VLO190DRS/11R-NPD12N00 *G* 

R902030289 A11VLO190LE4S5/11R-NZG12K01-K 

R902031011 A11VLO190LRDH1/11 A11VLO130LRDH1/11-K 

R902031012 A11VLO190LRDH1/11R-NZD12K83 

R902031078 A11VLO190EP2D/11L-NZD12K04 *G* 

R902031092 A11VLO190LRDH2/11R-NZD12K02 

R902031108 A11VLO190LRH1/11R-NZD12K02 

R902031150 A11VLO190LG2D/11R-NTD12K01-SK 

R902031151 A11VLO190LG2D/11R-NTD12K01-SK 

R902031152 A11VLO190LG2D/11L-NTD12K01-SK 

R902031153 A11VLO190LG2D/11R-NTD12K01-S 

R902031162 A11VLO190EPXS/11L-NSD12K04-S *G* 

R902031170 A11VLO190LG1S/11L-NZD12N00 

R902032205 A11VLO190DRS/11R-NZD12K02-K 

R902032291 A11VLO190LRDH1/11R-NZD12K02-K 

R902032292 A11VLO190LRDH1/11R-NZD12K02 

R902032293 A11VLO190LRDH1/11R-NZD12K01-K 

R902032294 A11VLO190LRDH1/11R-NZD12K01 

R902032424 A11VLO190LRDH1/11R-NZD12K04 

R902032425 A11VLO190LRDH1/11 A11VO40DRS/10 

油泵可以分為容積式和非容積室(蝸輪式)兩種。非容積式有離心泵、軸流泵等,利用高速旋轉(zhuǎn)的葉輪使進(jìn)口產(chǎn)生真空吸入液體,并在出口連續(xù)輸出壓力液體。這種泵進(jìn)口與出口相通,效率隨液體粘度增加而降低,并且輸出液體量隨出口壓力升高而顯著減少。

容積式泵是通過一個封閉的空間容積的變化來實現(xiàn)吸油和壓油的。當(dāng)這個封閉容積由小變大時進(jìn)行吸油,由大變小時進(jìn)行壓油。典型的為力士樂柱塞泵,柱塞從缸孔中拉出時吸油,壓進(jìn)時壓油。這種泵進(jìn)口與出口是被隔開的,效率取決于隔開吸壓油腔的各對運(yùn)動零件間的結(jié)構(gòu)工藝間隙及油液的粘度等。粘度越率越高,輸油量幾乎保持不變(因效率略有影響,另外壓力升高至18MPa,油液會被壓縮1%)。

 

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