在術(shù)語(yǔ)上講,齒輪泵也叫正排量裝置,即像一個(gè)缸筒內(nèi)的活塞,當(dāng)一個(gè)齒進(jìn)入另一個(gè)齒的流體空間時(shí),因?yàn)橐后w是不可壓縮的,所以液體和齒就不能在同一時(shí)間占據(jù)同一空間,這樣,液體就被機(jī)械性地?cái)D排出來(lái)。由于齒的不斷嚙合,這一現(xiàn)象就連續(xù)在發(fā)生,因而也就在泵的出口提供了一個(gè)連續(xù)排除量,泵每轉(zhuǎn)一轉(zhuǎn),排出的量是一樣的。隨著驅(qū)動(dòng)軸的不間斷地旋轉(zhuǎn),泵也就不間斷地排出流體。泵的流量直接與泵的轉(zhuǎn)速有關(guān)。 對(duì)于粘度或密度在工藝中有變化的流體,這種泵不會(huì)受到太多影響。如果有一個(gè)阻尼器,比如在排出口側(cè)放一個(gè)濾網(wǎng)或一個(gè)限制器,泵則會(huì)推動(dòng)流體通過(guò)它們。如果這個(gè)阻尼器在工作中變化,亦即如果濾網(wǎng)變臟、堵塞了,或限制器的背壓升高了,則泵仍將保持恒定的流量,直至達(dá)到裝置中最弱的部件的機(jī)械極限(通常裝有一個(gè)扭矩限制器)。
為了減少隔擋處的磨損,就需要設(shè)置幾個(gè)盲孔,該盲孔在與一個(gè)壓油柱塞缸相通時(shí),充滿壓力油液,在緊接著切斷時(shí),孔內(nèi)的油液這時(shí)就起著類似彈簧的作用,從而使配油盤接觸表面卸荷和改善潤(rùn)滑條件。盲孔的尺寸設(shè)計(jì)通常取為:直徑1.5~2.0毫米,深度6~8毫米。
德國(guó)力士樂(lè)柱塞泵型號(hào):
A10VSO100DFLR/31R-PPA12K26
A10VSO140DFLR/31R-PPB12N00
A4VG125HDMT1-32R-NSF02F691S-S
A4VG90EP2DT1/32L-NAFO2F001D
A4VSG40HS1/10R-VPB10N000N
A10VSO140DFR1/31R-PPB12N00
A4VSG40HD1D/10R-PZB10N000N
A4VSG71HW/10R-PPB10H029F
柱塞泵
A4VSG250HS1/30R-PPB10N000N
A4VG71DWDMT2/23L-NZF02F041D泵
A4VS0500HSK/30R-PPH13N0010SET
A4VS0180DR/22R-PPB13N00
A10VSO140DFLR/31R-PPB12N00
A4VG250HD1D1/32R-NSD10F001D
A4VSO180DRG/30R-PZB1+A4VSO40DRG/10R-PZB13
A4VS0250DR/30RPPB13N00
A4VS0125DFR/30R-PPB13N00
A4VSG250EO1/22R-PPB10N000N
A4VSG250HSE/30R-PPB10N000N
A4VS0125DR/3XR
A4VSO71DR/10R-PPB13N00
A4VSO40EO/31L-P2BBN00
A4VG180EP2MT1/32RNZD02F0215
A4VG125HDM1/32R-NSF02F691S-S
A4VG71DWDMT2/23L-NZF02F041D泵
A4VSO500HS4/30R-PZH25N00
A10VSO45DFR/31R-PPA12K68
A4VS0250HD1GB/30R-PZB13K35-S
A10VSO140DR/31R-PPB12N00
A4VSO500HS4/30R-PZH25N00
A4VS0125DFR/30R-PPB13N00
A4VSO125DR/30R-PB13N00-SO127
A4VSG40EM2009/10R-PZB10N000N
A4VSG250EO1/22R-PPB10N000N
A4VSG250HD1D/30R-PPB10K349N
A4VSO40EO/31L-P2BBN00
A4VSG71EO1K/10R-PPB10H049N
軸向柱塞泵主泵
A10V028DR/31R-PSC12N00
A4VS0180DR/30R-PPB13N00
A4VSO180DR/30R-PPB12NOOS1057
A4VSG250HW/30R-PPB10N000N
A4VSG250EO1/30R-PPB10H009F
A4VS0250DRG/30R-PPB13N00E-
A4VG90EP2DT1/32R-NAF02F00
A4VG125EP2D1/32R-NAF02K691EP-4
A4VSO180DR/-30R-PPB13N00
A4VG71DWDMT2/23L-NZF02F041D泵
A4VSG71HD1U/10R-PPB10N000N
A4VG125DA2D2/32R-NAF02F021DT
A4VG90EP2DT1/32L-NAFO2F001D
A4VSG40EM2009/10R-PZB10N000N
A4VSG250HD1P/30R-PPB10G300N
A4VSO71DR/10R-PPB13N00
A4VSG40EO1/10R-PPB10K019N
A4VS0125DR/10R-PPB13N00
A4VSG71EO1/10R-PPB10N00
A4VS0500HSK/30R-PPH13N0010SET
AA10VSO100DFR/31L-PKC62K03
A4VSG71EM3136/10R-PPB10K019N
A4VG71EP/32R-NAF02F011S
E-A4VSO125DRPPB13NOO
A4VS0250LR3G/30R-PZB13N00-S0
A4VG250HD1D1/32R-NSD10F001D
A4VS0250HD1GB/30R-PZB13K35-S
(1)隨著柱塞數(shù)的增加,無(wú)論偶數(shù)柱塞泵還是奇數(shù)柱塞泵,流量脈動(dòng)率都下降。(2)相鄰柱塞數(shù)相比,奇數(shù)柱塞泵的脈動(dòng)流量遠(yuǎn)小于偶數(shù)柱塞泵的脈動(dòng)率。 軸向柱塞泵均采用圓柱形柱塞.根據(jù)柱塞頭部結(jié)構(gòu),有三種型式,(1)點(diǎn)接觸式柱塞,(2)線接觸式柱塞,(3)帶滑靴的柱塞.選用帶滑靴的柱塞,柱塞頭部同樣裝有一個(gè)擺動(dòng)頭, 稱滑靴,可繞柱塞球頭中心擺動(dòng).滑靴與斜盤間為面接觸,接觸應(yīng)力小,能承受較高的工作壓力.高壓油液還可以通過(guò)柱塞中心孔,沿滑靴平面泄露,保持與斜盤之間有一層油膜潤(rùn)滑,從而減少了摩擦和磨損,使壽命大大提高.目前大多采用這種形式軸向柱塞泵.
s19hms220
以上型號(hào)不全,可來(lái)電咨詢~~● 新聞:A10VSO140DFLR/31R-PPB12N00每周回顧:http://www.jdzj.com/chanpin/ku1_2798315.html
聯(lián)系人:李志龍 手機(jī):13808603867
公司地址:武漢市經(jīng)濟(jì)技術(shù)開(kāi)發(fā)區(qū)工業(yè)園創(chuàng)業(yè)路
Copyright 2025 武漢恒美斯液壓機(jī)電設(shè)備有限公司   鄂ICP備11016599號(hào)-1 技術(shù)支持: 機(jī)電之家