日韩欧美亚洲中出在线-国产欧美精品一区二区久久-av噜噜一区二区三区-少妇av大全在线播放

REXROTH齒輪泵
    力士樂（Bosch Rexroth）為工業(yè)及工廠自動(dòng)化、預(yù)*預(yù)*預(yù)*預(yù)*預(yù)*預(yù)先進(jìn)行走機(jī)械、以及可再生能源等領(lǐng)域的客戶提供傳動(dòng)、控制與移動(dòng)解決方案；作為超過50萬客戶的共同選擇，力士樂正不斷為客戶提供高質(zhì)量的電控、液壓、氣動(dòng)以及機(jī)電一體化元件和系統(tǒng)。
bosch rexroth不僅是*強(qiáng)公司，也是世界較有名高科技企業(yè)之一，50多年來，Bosch Rexroth集團(tuán)及Bosch Rexroth公司的業(yè)務(wù)部門致力于開發(fā)專業(yè)型液壓傳動(dòng)領(lǐng)域高科技產(chǎn)品，其產(chǎn)品和品牌已享譽(yù)。 力士樂的產(chǎn)品是*的，因?yàn)樵诟鲊袌?chǎng)上，目前沒有其他的品牌能向顧客提供所有傳動(dòng)與控制技術(shù)，專門化與一體化并舉。正因如此，博世-力士樂在液壓傳動(dòng)、控制及移動(dòng)技術(shù)等領(lǐng)域成為了標(biāo)志性的榜樣。
    是依靠泵缸與嚙合齒輪間所形成的工作容積變化和移動(dòng)來輸送液體或使之增壓的回轉(zhuǎn)泵。rexroth齒輪泵由兩個(gè)齒輪、泵體與前后蓋組成兩個(gè)封閉空間，當(dāng)齒輪轉(zhuǎn)動(dòng)時(shí)，齒輪脫開側(cè)的空間的體積從小變大，形成真空，將液體吸首*首*首*首*首*首先進(jìn)入，rexroth齒輪泵齒輪嚙合側(cè)的空間的體積從大變小，而將液體擠首*首*首*首*首*首先進(jìn)入管路中去。吸首*首*首*首*首*首先進(jìn)入腔與排出腔是靠兩個(gè)齒輪的嚙合線來隔開的。齒輪泵的排出口的壓力*取決于泵出口處阻力的大小。

REXROTH齒輪泵優(yōu)缺點(diǎn)：
優(yōu)點(diǎn)：rexroth齒輪泵結(jié)構(gòu)簡單緊湊、體積小、質(zhì)量輕、工藝性好、價(jià)格便宜、自吸力強(qiáng)、對(duì)油液污染不敏感、轉(zhuǎn)速范圍大、能耐沖擊性負(fù)載，維護(hù)方便、工作可靠。
缺點(diǎn)：rexroth齒輪泵徑向力不平衡、流動(dòng)脈動(dòng)大、噪聲大、效率低，零件的互換性差，磨損后不易修復(fù)，不能做變量泵用。

rexroth齒輪泵困油現(xiàn)象
原因：rexroth齒輪泵液壓油在漸開線齒輪泵運(yùn)轉(zhuǎn)過程中，因齒輪相交處的封閉體積隨時(shí)間改變，常有一部分的液壓油被密封在齒間，如圖所示，稱為困油現(xiàn)象，因液壓油不可壓縮將使外接齒輪產(chǎn)生極大的振動(dòng)和噪聲，影響系統(tǒng)正常工作。
困油現(xiàn)象
措施：rexroth齒輪泵在前后蓋板或浮動(dòng)軸套上開卸荷槽，開設(shè)卸荷槽的原則：兩槽間距為zui小閉死容積，而使閉死容積由大變小時(shí)與壓油腔相通，閉死容積由小變大時(shí)與吸油腔相通。

卸荷槽泄漏現(xiàn)象
rexroth齒輪泵的泄漏較大，外嚙合齒輪運(yùn)轉(zhuǎn)時(shí)泄漏途徑有以下三點(diǎn)：一為齒輪頂隙，其次為測(cè)隙，第三為嚙合間隙。
其中端面?zhèn)认缎孤┹^大，占總泄漏量的80%-85%，當(dāng)壓力增加時(shí)，前者不會(huì)改變，但后者撓度大增，此為外嚙合齒輪泵泄漏zui主要的原因，容積效率較低，故不適合用作高壓泵。
解決方法：端面間隙補(bǔ)償采用靜壓平衡措施，在齒輪和蓋板之間增加一個(gè)補(bǔ)償零件，如浮動(dòng)軸套、浮動(dòng)側(cè)板。

rexroth齒輪泵浮動(dòng)側(cè)板
受力不均衡現(xiàn)象
右側(cè)是壓油腔，rexroth齒輪泵左側(cè)是吸油腔，兩腔的壓力是不平衡的；另外壓油腔因齒頂泄漏，其壓力為遞減。兩不均衡壓力作用于齒輪和軸稱徑向不平衡壓力，油壓越高，該力越大，加速軸承磨損，降低軸承壽命，使軸彎曲，加大齒頂與軸孔磨損。
防止措施：采用壓力平衡槽或縮小壓油腔。


PVV1-1X/018RA15RMB
 PVV1-1X/018RA15RVB
 PVV1-1X/018RA15UMB
 PVV1-1X/018RA15UVB
 PVV1-1X/018RJ15DMB
 PVV1-1X/018RJ15RMB
 PVV1-1X/018RJ15LMB
 PVV1-1X/018RJ15UMB
 PVV1-1X/018LA15DMB
 PVV1-1X/018LA15UMB
 PVV1-1X/027RA15DMB
 PVV1-1X/027RA15DVB
 PVV1-1X/027RA15RMB
 PVV1-1X/027RA15LMB
 PVV1-1X/027RA15UMB
 PVV1-1X/027RA15UVB
 PVV1-1X/027RJ15DMB
 PVV1-1X/027RJ15DVB
 PVV1-1X/027RJ15LMB
 PVV1-1X/027RJ15UMB
 PVV1-1X/027LA15LMB
 PVV1-1X/027LA15UMB
 PVV1-1X/027LJ15LMB
 PVV1-1X/036RA15DMB
 PVV1-1X/036RA15DVB
 PVV1-1X/036RA15RMB
 PVV1-1X/036RA15LMB
 PVV1-1X/036RA15UMB
 PVV1-1X/036RA15UVB
 PVV1-1X/036RJ15DMB
 PVV1-1X/036RJ15DVB
 PVV1-1X/036RJ15RMB
 PVV1-1X/036RJ15UMB
 PVV1-1X/036LA15UMB
 PVV1-1X/040RA15DMB
 PVV1-1X/040RA15RMB
 PVV1-1X/040RA15UMB
 PVV1-1X/040RA15UVB
 PVV1-1X/040RJ15DMB
 PVV1-1X/040RJ15UMB
 PVV1-1X/040LA15UMB
 PVV1-1X/046RA15DMB
 PVV1-1X/046RA15DVB
 PVV1-1X/046RA15RVB
 PVV1-1X/046RA15UMB
 PVV1-1X/046RA15UVB
 PVV1-1X/046RJ15DMB
 PVV1-1X/046RJ15UMB
 PVV1-1X/046RJ15UVB
 PVV2-1X/040RA15DMB
 PVV2-1X/040RA15LMB
 PVV2-1X/040RA15UMB
 PVV2-1X/040RA15UVB
 PVV2-1X/040RJ15DMB
 PVV2-1X/040RJ15UMB
 PVV2-1X/045RA15DMB
 PVV2-1X/045RA15DVB
 PVV2-1X/045RA15RMB
 PVV2-1X/045RA15LMB
 PVV2-1X/045RA15UMB
 PVV2-1X/045RA15UVB
 PVV2-1X/045RJ15DMB
 PVV2-1X/045RJ15UMB
 PVV2-1X/045LA15UMB
 PVV2-1X/055RA15DMB
 PVV2-1X/055RA15DVB
 PVV2-1X/055RA15RMB
 PVV2-1X/055RA15RVB
 PVV2-1X/055RA15LMB
 PVV2-1X/055RA15UMB
 PVV2-1X/055RA15UVB
 PVV2-1X/055RB15DMB
 PVV2-1X/055RJ15DMB
 PVV2-1X/055RJ15RMB
 PVV2-1X/055RJ15UMB
 PVV2-1X/055LA15DMB
 PVV2-1X/055LA15UMB
 PVV2-1X/060RA15DMB
 PVV2-1X/060RA15DVB
 PVV2-1X/060RA15RMB
 PVV2-1X/060RA15RVB
 PVV2-1X/060RA15LMB
 PVV2-1X/060RA15UMB
 PVV2-1X/060RA15UVB
 PVV2-1X/060RB15DMB
 PVV2-1X/060RJ15DMB
 PVV2-1X/060RJ15LMB
 PVV2-1X/060RJ15UMB
 PVV2-1X/060LA15DMB
 PVV2-1X/060LA15LVB
 PVV2-1X/060LA15UMB
 PVV2-1X/068RA15DMB
 PVV2-1X/068RA15DVB
 PVV2-1X/068RA15RMB
 PVV2-1X/068RA15LMB
 PVV2-1X/068RA15UMB
 PVV2-1X/068RA15UVB
 PVV2-1X/068RB15DMB
 PVV2-1X/068RB15UMB
 PVV2-1X/068RJ15DMB
 PVV2-1X/068RJ15LMB
 PVV2-1X/068RJ15UMB
 PVV2-1X/068RJ15UVB
 PVV2-1X/068LA15DMB
 PVV2-1X/068LA15UVB
 PVV2-1X/068LB15DMB
 PVV2-1X/068LJ15UMB
 PVV4-1X/069RA15DMC
 PVV4-1X/069RA15LMC
 PVV4-1X/069RA15UMC
 PVV4-1X/069RB15RMC
 PVV4-1X/069RB15RVC
 PVV4-1X/069RB15UMC
 PVV4-1X/069RJ15DMC
 PVV4-1X/069RJ15UMC
 PVV4-1X/069LA15DMC
 PVV4-1X/069LA15DVC
 PVV4-1X/082RA15DMC
 PVV4-1X/082RA15DVC
 PVV4-1X/082RA15RMC
 PVV4-1X/082RA15RVC
 PVV4-1X/082RA15LMC
 PVV4-1X/082RA15UMC
 PVV4-1X/082RA15UVC
 PVV4-1X/082RB15DMC
 PVV4-1X/082RB15UMC
 PVV4-1X/082RB15UVC
 PVV4-1X/082RJ15DMC
 PVV4-1X/082RJ15UMC
 PVV4-1X/082LA15DMC
 PVV4-1X/082LA15DVC
 PVV4-1X/082LA15LVC
 PVV4-1X/082LA15UMC
 PVV4-1X/082LJ15UMC
 PVV4-1X/098RA15DMC
 PVV4-1X/098RA15DVC
 PVV4-1X/098RA15RMC
 PVV4-1X/098RA15RVC
 PVV4-1X/098RA15LMC
 PVV4-1X/098RA15UMC
 PVV4-1X/098RA15UVC
 PVV4-1X/098RB15DMC
 PVV4-1X/098RB15UMC
 PVV4-1X/098RJ15DMC
 PVV4-1X/098RJ15UMC
 PVV4-1X/098LA15RMC
 PVV4-1X/098LA15UMC
 PVV4-1X/098LA15UVC
 PVV4-1X/113RA15DMC
 PVV4-1X/113RA15DVC
 PVV4-1X/113RA15LVC
 PVV4-1X/113RA15UMC
 PVV4-1X/113RA15UVC
 PVV4-1X/113RB15DMC
 PVV4-1X/113RB15RMC
 PVV4-1X/113RJ15DMC
 PVV4-1X/113RJ15UMC
 PVV4-1X/113LA15UMC
 PVV4-1X/122RA15DMC
 PVV4-1X/122RA15DVC
 PVV4-1X/122RA15RMC
 PVV4-1X/122RA15LMC
 PVV4-1X/122RA15UMC
 PVV4-1X/122RB15DMC
 PVV4-1X/122RJ15DMC
 PVV4-1X/122RJ15DVC
 PVV4-1X/122RJ15UMC
 PVV4-1X/122LA15DMC
 PVV4-1X/122LA15LMC
 PVV4-1X/122LA15UMC
 PVV4-1X/122LJ15DMC
 PVV4-1X/122LJ15UMC
 PVV5-1X/139RA15DMC
 PVV5-1X/139RA15DVC
 PVV5-1X/139RA15RVC
 PVV5-1X/139RA15LMC
 PVV5-1X/139RA15UMC
 PVV5-1X/139RA15UVC
 PVV5-1X/139RB15DMC
 PVV5-1X/139RJ15DMC
 PVV5-1X/139RJ15UMC
 PVV5-1X/139LA15DMC
 PVV5-1X/139LA15UMC
 PVV5-1X/154RA15DMC
 PVV5-1X/154RA15DVC
 PVV5-1X/154RA15RMC
 PVV5-1X/154RA15UMC
 PVV5-1X/154RB15DMC
 PVV5-1X/154RJ15DMC
 PVV5-1X/154RJ15DVC
 PVV5-1X/154RJ15UMC
 PVV5-1X/154LA15DMC
 PVV5-1X/154LA15UMC
 PVV5-1X/162RA15DMC
 PVV5-1X/162RA15DVC
 PVV5-1X/162RA15RMC
 PVV5-1X/162RA15UMC
 PVV5-1X/162RA15UVC
 PVV5-1X/162RB15DMC
 PVV5-1X/162RB15DVC
 PVV5-1X/162RB15LMC
 PVV5-1X/162RB15UMC
 PVV5-1X/162RJ15DMC
 PVV5-1X/162RJ15UMC
 PVV5-1X/162LA15DMC
 PVV5-1X/162LA15UMC
 PVV5-1X/162LB15UMC
 PVV5-1X/162LJ15DMC
 PVV5-1X/183RA15DMC
 PVV5-1X/183RA15RMC
 PVV5-1X/183RA15LMC
 PVV5-1X/183RA15UMC
 PVV5-1X/183RA15UVC
 PVV5-1X/183RJ15DMC
 PVV5-1X/183RJ15LMC
 PVV5-1X/183LA15DMC
 PVV5-1X/183LA15LMC
 PVV5-1X/193RA15DMC
 PVV5-1X/193RA15DVC
 PVV5-1X/193RA15RMC
 PVV5-1X/193RA15RVC
 PVV5-1X/193RA15LMC
 PVV5-1X/193RA15LVC
 PVV5-1X/193RA15UMC
 PVV5-1X/193RA15UVC
 PVV5-1X/193RB15DMC
 PVV5-1X/193RB15UMC
 PVV5-1X/193RJ15DMC
 PVV5-1X/193RJ15UMC
 PVV5-1X/193LA15DMC
 PVV5-1X/193LA15UMC
 PVV5-1X/193LB15DMC