力士乐内啮合齿轮泵PGH4-30/020RE11VU2  R901147100，德国REXROTH内啮合齿轮泵，现货库存供应，购买进口液压、气动、自动化控制工业配件，认准“上海韦米机电设备有限公司”，7年老店，保证产品原厂原装，价格优惠，售后无忧，欢迎新老客户咨询采购！
 
齿轮泵的分类
属于结构简单,纳污能力强,工作压力相对较低,成本较低的一种, 广泛用于农业机械:拖拉机、收割机等。工程机械:叉车、自卸车等。
齿轮泵按照齿轮的啮合形式可分为外啮合式和内啮合式两种,按照齿形曲线有渐开线形、圆弧齿形和摆线齿形。
2)外啮合齿轮泵
( 1 )外啮合齿轮泵的结构。主要由主动齿轮、从动齿轮、壳体、前后泵体、密封圈和轴承等组成。
外啮合齿轮泵的结构
1-从动齿轮; 2-轴承套; 3-密封圈; 4一前端盖; 5-密封;6-传动轴;;7-主动齿轮;8- 壳体;9后端盖
( 2 )外啮合齿轮泵的工作原理
密封容腔由壳体、端盖和两对齿轮的啮合部位组成。配流装置由齿轮啮合线将吸油区和压油区隔开,起配流作用。
(3)外啮合齿轮泵的几个问题
①泄漏问题
端面泄露:齿轮端面和轴承套端面之间间隙占80% ,
径向泄露:齿顶与壳体之间间隙15%
啮合线泄露:两个齿轮互相啮合部位之间间隙。5%减小端面泄漏的方法:采用端面间隙自动补偿。
②径向不平衡力。
泵内压力腔的油液经过径向间隙逐渐渗漏到吸油腔,其压力逐渐减小,液压力作用在齿轮上的合力大致为图中力F的方向,此力由轴承来承受,因而影响了轴承的寿命,往往成为提高泵工作压力的限制因素。
消除方法:
1缩小压油C即压力的作用面积减小径向不平衡力
2.增泵体内表面与齿轮顶圆的间隙,使在径向不平衡力作用时齿顶和泵体不接触。
3.开压力平衡槽,但泄漏大,很少用
③流量脉动。随着啮合点位置的不断变化,吸、压油腔在每-瞬间的容积变化率是不均匀的,因此齿轮泵的瞬时流量是脉动的。
④困油现象及消除措施。由 ( a )旋转到 b )所示位置时,闭死容积由大变到小;由( b )旋转到( C )所示位置时,闭死容积从小变到大。这种现象称之为困油现象。
危害:减小时使被困油挤出产生高压,增大时会造成真空产生穴现象。
消除措施:在轴承套上开卸荷槽 , 当闭死容积由大变小时,借助卸荷槽与压油腔相通。当闭死容积由小变大时,借助卸荷槽与吸油腔相通。

齿轮泵优缺点:
结构简单、尺寸小、重量轻、价格低、工作可靠、自吸能力强、对油液污染不敏感。
泄漏量大、工作压力低。流量脉动大。
提高工作压力的措施:
减小端面泄漏。齿轮端面间隙自动补偿。
力士乐内啮合齿轮泵PGH4-30/020RE11VU2  R901147100
力士乐REXROTH内齿轮泵，固定排量PGH-3X系列
R901282905 PGH4-3X/020LR11VU2
R901147105 PGH4-3X/020RE11VE4
R901147100 PGH4-3X/020RE11VU2
R901147100 PGH4-30/020RE11VU2
R901330079 PGH4-3X/020RE11WE4
R901340844 PGH4-3X/020RE11WU2
R901147110 PGH4-3X/020RR11VU2
R901340845 PGH4-3X/020RR11WU2
R901282906 PGH4-3X/025LR11VU2
R901147106 PGH4-3X/025RE11VE4
R901392048 PGH4-3X/025RE11VE4-C3.1
R901147101 PGH4-3X/025RE11VU2
R901271425 PGH4-3X/025RE11WU2
R901147111 PGH4-3X/025RR11VU2
R901443648 PGH4-3X/025RR11VU2-C3.1
R901357519 PGH4-3X/025RR11WU2
R901282907 PGH4-3X/032LR11VU2
R901147107 PGH4-3X/032RE11VE4
R901147102 PGH4-3X/032RE11VU2
R901400341 PGH4-3X/032RE11VU2-C3.1
R901416754 PGH4-3X/032RE11WE4
R901296753 PGH4-3X/032RE11WU2
R901457883 PGH4-3X/032RE11WU2-A520
R901147112 PGH4-3X/032RR11VU2
R901310645 PGH4-3X/032RR11WU2
R901282908 PGH4-3X/040LR11VU2
R901147108 PGH4-3X/040RE11VE4
R901147103 PGH4-3X/040RE11VU2
R901349646 PGH4-3X/040RE11WE4
R901296755 PGH4-3X/040RE11WU2
R901147113 PGH4-3X/040RR11VU2
R901349822 PGH4-3X/040RR11VU2-A509
R901428459 PGH4-3X/040RR11VU2-C3.1
R901282909 PGH4-3X/050LR11VU2
R901147109 PGH4-3X/050RE11VE4
R901147104 PGH4-3X/050RE11VU2
R901147104 PGH4-30/050RE11VU2
R901296757 PGH4-3X/050RE11WU2
R901433870 PGH4-3X/050RE11WU2-A520
R901147114 PGH4-3X/050RR11VU2
R901464965 PGH4-3X/050RR11VU2-A525
R901274915 PGH4-3X/050RR11WU2
R901357192 PGH4-3X/063LR11VU2
R901286225 PGH4-3X/063RE11VE4
R901286223 PGH4-3X/063RE11VU2
R901385321 PGH4-3X/063RE11WU2
R901286226 PGH4-3X/063RR11VU2
R901463362 PGH4-3X/063RR11WU2
R901260687 PGH5-3X/063LR11VU2
R901147122 PGH5-3X/063RE11VE4
R901147115 PGH5-3X/063RE11VU2
R901147115 PGH5-30/063RE11VU2
R901147129 PGH5-3X/063RR11VU2
R901423306 PGH5-3X/063RR11VU2-A516
R901282739 PGH5-3X/063RR11WU2
R901260688 PGH5-3X/080LR11VU2
R901147123 PGH5-3X/080RE11VE4
R901443231 PGH5-3X/080RE11VE4-C3.1
R901147116 PGH5-3X/080RE11VU2
R901147116 PGH5-30/080RE11VU2
R901349823 PGH5-3X/080RE11VU2-A509
R901349331 PGH5-3X/080RE11WE4
R901369097 PGH5-3X/080RE11WU2
R901147130 PGH5-3X/080RR11VU2
R901443233 PGH5-3X/080RR11VU2-C3.1
R901296758 PGH5-3X/080RR11WU2
R901260689 PGH5-3X/100LR11VU2
R901412034 PGH5-3X/100LR11WU2
R901147124 PGH5-3X/100RE11VE4
R901147117 PGH5-3X/100RE11VU2
R901423214 PGH5-3X/100RE11WE4
R901325311 PGH5-3X/100RE11WU2
R901147131 PGH5-3X/100RR11VU2
R901423308 PGH5-3X/100RR11VU2-A516
R901296759 PGH5-3X/100RR11WU2
R901260690 PGH5-3X/125LR11VU2
R901376012 PGH5-3X/125LR11WU2
R901147125 PGH5-3X/125RE11VE4
R901147118 PGH5-3X/125RE11VU2
R901402689 PGH5-3X/125RE11VU2-C3.1
R901310644 PGH5-3X/125RE11WE4
R901147132 PGH5-3X/125RR11VU2
R901272915 PGH5-3X/125RR11WU2
R901260691 PGH5-3X/160LR11VU2
R901147126 PGH5-3X/160RE11VE4
R901430575 PGH5-3X/160RE11VE4-C3.1
R901147119 PGH5-3X/160RE11VU2
R901456396 PGH5-3X/160RE11VU2-C3.1
R901412925 PGH5-3X/160RE11WE4
R901225225 PGH5-3X/160RE11WU2
R901147133 PGH5-3X/160RR11VU2
R901430576 PGH5-3X/160RR11VU2-C3.1
R901272916 PGH5-3X/160RR11WU2
R901260692 PGH5-3X/200LR07VU2
R901147127 PGH5-3X/200RE07VE4
R901147120 PGH5-3X/200RE07VU2
R901371526 PGH5-3X/200RE07WE4
R901393396 PGH5-3X/200RE07WU2
R901147134 PGH5-3X/200RR07VU2
R901371525 PGH5-3X/200RR07WU2
R901260693 PGH5-3X/250LR07VU2
R901147128 PGH5-3X/250RE07VE4
R901147121 PGH5-3X/250RE07VU2
R901393397 PGH5-3X/250RE07WU2
R901147135 PGH5-3X/250RR07VU2
R901376638 PGH55-3X/080L-080RR11VU2
R901441118 PGH55-3X/080R-080RE11VE4
力士乐REXROTH内啮合齿轮泵PGM-4X系列
R901363096 PGM4-4X/025RA11VU2
R901374263 PGM4-4X/025RT11VU2
R901363097 PGM4-4X/032RA11VU2
R901374264 PGM4-4X/032RT11VU2
R901363098 PGM4-4X/040RA11VU2
R901374265 PGM4-4X/040RT11VU2
R901363099 PGM4-4X/050RA11VU2
R901374266 PGM4-4X/050RT11VU2
R901363100 PGM4-4X/063RA11VU2
R901374267 PGM4-4X/063RT11VU2
力士乐REXROTH恒位移摆线泵PGZ
R901230020 PGZ4-1X/020RA07VE4
R901384154 PGZ4-1X/020RA07VE4-C3.1
R901253320 PGZ4-1X/020RA07VU2-A485
R901230023 PGZ4-1X/020RR07VB3
R901230022 PGZ4-1X/020RT07VB2
R901230021 PGZ4-1X/020RT07VU2
R901230024 PGZ4-1X/032RA07VE4
R901388516 PGZ4-1X/032RA07VE4-C3.1
R901370661 PGZ4-1X/032RA07VU2-A485
R901230026 PGZ4-1X/032RT07VB2
R901230025 PGZ4-1X/032RT07VU2
R901230028 PGZ4-1X/040RA07VE4
R901252670 PGZ4-1X/040RA07VU2-A485
R901230031 PGZ4-1X/040RR07VB3
R901230030 PGZ4-1X/040RT07VB2
R901230029 PGZ4-1X/040RT07VU2
R901230032 PGZ4-1X/050RA07VE4
R901424383 PGZ4-1X/050RA07VE4-C3.1
R901370663 PGZ4-1X/050RA07VU2-A485
R901230035 PGZ4-1X/050RR07VB3
R901230034 PGZ4-1X/050RT07VB2
R901230033 PGZ4-1X/050RT07VU2
R901230036 PGZ4-1X/063RA07VE4
R901448430 PGZ4-1X/063RA07VE4-C3.1
R901300848 PGZ4-1X/063RA07VU2-A485
R901230039 PGZ4-1X/063RR07VB3
R901230038 PGZ4-1X/063RT07VB2
R901230037 PGZ4-1X/063RT07VU2
R901230040 PGZ4-1X/080RA07VE4
R901448257 PGZ4-1X/080RA07VE4-C3.1
R901253321 PGZ4-1X/080RA07VU2-A485
R901230043 PGZ4-1X/080RR07VB3
R901230042 PGZ4-1X/080RT07VB2
R901230041 PGZ4-1X/080RT07VU2
R901230044 PGZ5-1X/063RA07VE4
R901370655 PGZ5-1X/063RA07VU2-A485
R901382069 PGZ5-1X/063RA07WE4-A513
R901230047 PGZ5-1X/063RR07VB3
R901230046 PGZ5-1X/063RT07VB2
R901230045 PGZ5-1X/063RT07VU2
R901230048 PGZ5-1X/080RA07VE4
R901243999 PGZ5-1X/080RA07VE4-A481
R901267561 PGZ5-1X/080RA07VE4-A493
R901271005 PGZ5-1X/080RA07VU2-A485
R901382070 PGZ5-1X/080RA07WE4-A513
R901230051 PGZ5-1X/080RR07VB3
R901230050 PGZ5-1X/080RT07VB2
R901230049 PGZ5-1X/080RT07VU2
R901230052 PGZ5-1X/100RA07VE4
R901377959 PGZ5-1X/100RA07VE4-C3.1
R901253322 PGZ5-1X/100RA07VU2-A485
R901230054 PGZ5-1X/100RT07VB2
R901230053 PGZ5-1X/100RT07VU2
R901230056 PGZ5-1X/140RA07VE4
R901388517 PGZ5-1X/140RA07VE4-C3.1
R901370597 PGZ5-1X/140RA07VU2-A485
R901230058 PGZ5-1X/140RT07VB2
R901230057 PGZ5-1X/140RT07VU2
力士乐REXROTH叶片泵
力士乐REXROTH可调叶片泵，先导操纵PV7...C/D/N/W
R901320916 PV7-1X/10-14RE01MC0-08-A474
R900580381 PV7-1X/10-14RE01MC0-16
R987046360 PV7-1X/10-14RE01MC0-16LIM.15LT1450G.
R987047421 PV7-1X/10-14RE01MC0-16LIM.16LT/MIN
R987065905 PV7-1X/10-14RE01MC0-16+ZFS11/22,5R213
R987072161 PV7-1X/10-14RE01MC0-16+ZFS11/8R213
R900533851 PV7-1X/10-14RE01MC0-16-A184
R901358374 PV7-1X/10-14RE01MC0-16-P100
R901382678 PV7-1X/10-14RE01MC0-16-P125Q8
R901171150 PV7-1X/10-14RE01MC0-16-P140Q10
R900941071 PV7-1X/10-14RE01MC0-16-P45
R900941073 PV7-1X/10-14RE01MC0-16-P60Q15
R901442350 PV7-1X/10-14RE01MC0-16-P60Q20
R901414295 PV7-1X/10-14RE01MC0-16-P80Q20
R901344755 PV7-1X/10-14RE01MC0-16-P90
R900598753 PV7-1X/10-14RE01MC3-16
R900520401 PV7-1X/10-14RE01MC5-16
R901394361 PV7-1X/10-14RE01MC5-16WG
R900933324 PV7-1X/10-14RE01MC5-16WH
R901010430 PV7-1X/10-14RE01MC6-16
R900509053 PV7-1X/10-14RE01MC7-16
R900504653 PV7-1X/10-14RE01MD0-16
R900548512 PV7-1X/10-14RE01MD0-16-A234
R901404893 PV7-1X/10-14RE01MD0-16-Q15
R900520725 PV7-1X/10-14RE01MD3-16
R900520787 PV7-1X/10-14RE01MD5-16
R900537419 PV7-1X/10-14RE01MN0-16
R900772792 PV7-1X/10-14RE01MW0-16
R901136642 PV7-1X/10-14RE01MW0-16WG
R900741002 PV7-1X/10-14RE01MW0-16WH
R900534143 PV7-1X/10-20RE01MC0-10
R987179771 PV7-1X/10-20RE01MC0-10HAMERSLAGGRIJS
R901292147 PV7-1X/10-20RE01MC0-10-A497
R901388556 PV7-1X/10-20RE01MC0-10-P30Q25
R900941072 PV7-1X/10-20RE01MC0-10-P45
R901404630 PV7-1X/10-20RE01MC0-10-P70Q28
R987067707 PV7-1X/10-20RE01MC010+1PF2G2-4X/08RR20MR
R987074006 PV7-1X/10-20RE01MC010+AZPF-11-008RRR20MB
R987136850 PV7-1X/10-20RE01MC010+R4/1,00-450WG01M01
R900538125 PV7-1X/10-20RE01MC3-10
R901303349 PV7-1X/10-20RE01MC3-10-A497
R900539710 PV7-1X/10-20RE01MC5-10
R900738663 PV7-1X/10-20RE01MC5-10WG
R900247239 PV7-1X/10-20RE01MC5-10WH
R900908540 PV7-1X/10-20RE01MC7-10
R900931507 PV7-1X/10-20RE01MC7-10WH
R900906584 PV7-1X/10-20RE01MD0-10
R900782498 PV7-1X/10-20RE01MD0-10-A234
R900700454 PV7-1X/10-20RE01MD5-10
R901043560 PV7-1X/10-20RE01MW0-10WH
R987067102 PV7-1X/100-118RE07MC0+ PV7-63-71RE07MC0
R987068626 PV7-1X/100-118RE07MC0+ PV7-63-71RE07MC0
R900506809 PV7-1X/100-118RE07MC0-16
R987074658 PV7-1X/100-118RE07MC0-16LIM83CC.
R987062892 PV7-1X/100-118RE07MC0-16LIM.80CC.
R987072990 PV7-1X/100-118RE07MC0-16+16-20RE01MC0-16
R987066407 PV7-1X/100-118RE07MC0-16+20-25RA01MA0-05
R987070001 PV7-1X/100-118RE07MC0-16+25-30RE01MC0-16
R901432834 PV7-1X/100-118RE07MC0-16-P110
R901396331 PV7-1X/100-118RE07MC0-16-P120
R901404632 PV7-1X/100-118RE07MC0-16-P65Q160
R900511215 PV7-1X/100-118RE07MC3-16
R900516546 PV7-1X/100-118RE07MC5-16
R900950061 PV7-1X/100-118RE07MC5-16WG
R900556803 PV7-1X/100-118RE07MC5-16WH
R901183579 PV7-1X/100-118RE07MC5-16WH-P125Q116
R900961521 PV7-1X/100-118RE07MC6-16
R987066964 PV7-1X/100-118RE07MC6-16+100-118RE07MC6*
R900533637 PV7-1X/100-118RE07MC7-16
R901348138 PV7-1X/100-118RE07MC7-16WG
R900752351 PV7-1X/100-118RE07MC7-16WH
R987065682 PV7-1X/100-118RE07MCO+V5-1X-193/RJ15DMC
R900532770 PV7-1X/100-118RE07MD0-16
R900950419 PV7-1X/100-118RE07MD0-16-A234
R900771631 PV7-1X/100-118RE07MD0-16-A427
R901398834 PV7-1X/100-118RE07MD0-16-A517
R901400470 PV7-1X/100-118RE07MD0-16-P30Q165-A517
R901404706 PV7-1X/100-118RE07MD0-16-Q120
R987066526 PV7-1X/100-118RE07MD016+V1-1X/036RJ15UMB
R901101367 PV7-1X/100-118RE07MD3-16
R900949187 PV7-1X/100-118RE07MD6-16
R900928704 PV7-1X/100-118RE07MN0-16
R900519411 PV7-1X/100-118RE07MN5-16
R901061279 PV7-1X/100-118RE07MW0-16WG
R901429723 PV7-1X/100-118RE07MW0-16WG-P30P100Q120
R900740824 PV7-1X/100-118RE07MW0-16WH
R901404633 PV7-1X/100-118RE07MW0-16WH-P20P70Q160
R901413656 PV7-1X/100-118RE07MW5-16WG-P20P80Q170
R901129340 PV7-1X/100-118RE07MW6-16WH
R900561846 PV7-1X/100-150RE07MC0-08
R900973548 PV7-1X/100-150RE07MC0-08-A184
R901047738 PV7-1X/100-150RE07MC0-08-A446
R901173632 PV7-1X/100-150RE07MC0-08-A464
R901384145 PV7-1X/100-150RE07MC0-08-C3.1
R901392573 PV7-1X/100-150RE07MC0-08-P35
R900961350 PV7-1X/100-150RE07MC3-08
R900560629 PV7-1X/100-150RE07MC5-08
R900761807 PV7-1X/100-150RE07MC5-08WG
R900948299 PV7-1X/100-150RE07MC5-08WH
R900577850 PV7-1X/100-150RE07MC7-08
R901366181 PV7-1X/100-150RE07MC7-08WH
R900915470 PV7-1X/100-150RE07MD0-08
R901439483 PV7-1X/100-150RE07MD0-08-A184
R900910479 PV7-1X/100-150RE07MD5-08
R900781572 PV7-1X/100-150RE07MN0-08
R901059507 PV7-1X/100-150RE07MW0-08WH
R900580382 PV7-1X/16-20RE01MC0-16
R987065773 PV7-1X/16-20RE01MC0-16LIM17CC
R987066114 PV7-1X/16-20RE01MC0-16LIM20CC
R900517795 PV7-1X/16-20RE01MC0-16-A184
R901370386 PV7-1X/16-20RE01MC0-16-C3.1
R901412083 PV7-1X/16-20RE01MC0-16-P100
R901406649 PV7-1X/16-20RE01MC0-16-P110
R901417552 PV7-1X/16-20RE01MC0-16-P120
R901405871 PV7-1X/16-20RE01MC0-16-P52
R901339145 PV7-1X/16-20RE01MC0-16-P70Q20
R987119852 PV7-1X/16-20RE01MC016+ PV7-16-20RE01MC016
R987074165 PV7-1X/16-20RE01MC016+PVV1-1X/018RJ15DMB
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液压传动技术在机械中的应用.
驱动机械运动的机构以及各种传动和操纵装置有多中形式。根据所用的不见和零件，可分为机械的、电气的、气动的、液压的传动装置。经常还将不同的形式组合起来运用一四位一体。由于液压传动具有很多优点，使这种新技术发展的很快。液压传动应用与金属切割机床也不过四五十年的历史。航空工业在1930年以后才开始采用。特别是近二三十年一来液压技术在各种工业中的应用越来越广泛。
1、在机床上，液压传动常应用在以下的- -些装置中
1.1进给 传动装置磨床砂轮架和工作台的进给运动大部分采用液压传动;车床、六角车床、自动车床的刀架或转塔刀架，铣床、刨床、组合机床的工作台等的进给运动也都采用液压传动。这些部件有的要求快速移动，有的要求慢速移动。有的既要求快速移动，也要求慢速移动。这些运动多半要求有较大的调速范围，要求在工作中无级调速;有的要求持续进给，有的要求间歇进给;有的要求在负载变化下速度恒定，有的要求有良好的换向性能等等。所有这些要求都是可以用液压传动来实现的。
1.2往复主题运动传动装置龙i刨床的工作台、牛头刨床或插床的滑枕，由于要求作高速往复直线运动并且要求换向冲击小、换向时间短、能耗低，因此都可以采用液压传动。
1.3仿形装置车床、铣床、刨床上的仿形加工可以采用液压伺服系统来完成。起精度可达0.01-0. 02m。此外，磨床上的成型砂轮修正装置亦可采用这系统。
1.4 辅助装置机床上的夹紧装置、齿轮箱变速操纵装置、丝杆螺母间隙消除装置、垂直移动部件平衡装置、分度装置、工件和刀具装卸装置、工件输送装置等，采用液压传动，有利于简化机床结构，提高机床自动化程度。
1.5静压支承重型机床、高速机床、高精度机床上的轴承、导轨、丝杆螺母机构等处采用液压静支承后，可以提高工作平稳性和运动精度。
2、液压传动技术在工程机械行走驱动中的应用
行走驱动系统是工程机械的重要组成部分。与工作系统相比，行走驱动系统不仅需要传输更大的功率，要求器件具有更高的效率和更长的寿命，还希望在变速调速、差速、改变输出轴旋转方向及反向传输动力等方面具有良好的能力。于是，采用何种传动方式，如何更好地满足各种工程机械行走驱动的需要，-直是工程机械行业所要面对的课题。尤其是近年来，随着我国交通、能源等基础设施建设进程的快速发展，建筑施工和资源开发规模不断扩大，工程机械在市场需求大大增强的同时，更面临着作业环境更为苛刻、工沉条件更为复杂等所带来的挑战，也进一步推动着对其行走驱动系统的深入研究。

液压传动是一种可达到传递动力、增加动力、改变速比等目的的传动方式。液压传动是以液体为工作介质，靠处于密闭容器内的液体静压力来传递力的传动方式，静压力的大小取决于负载，而负载速度的传递是按液体容积变化相等的原则进行的，其速度大小取决于流量；如果忽略损失，液压传动所传递的力与速度无关。
液压传动相比其他传统传动方式优势较为明显：1）功率重量比大，能以较轻的设备重量取得更大的力和转矩；2）惯性小，启动、制动迅速；3）无级调速，调速范围大，低速性能好；4）高响应速度；5）高负载刚度；6）可控性好，易于实现自动化，液压元件位臵可以根据设备需要进行调整。