行業(yè)動(dòng)態(tài)

90L100KP丹佛斯雙聯(lián)柱塞泵工作原理

2022-11-18 閱讀次數(shù):

?丹佛斯雙聯(lián)柱塞泵 工作原理:丹佛斯雙聯(lián)柱塞泵將兩個(gè)相同形狀的圓柱塞入兩個(gè)相同形狀的泵腔內(nèi),并在泵腔內(nèi)通過(guò)不同位置對(duì)柱塞產(chǎn)生力矩,而使泵出口具有一定的壓力并能提供更大限度的動(dòng)力,這就是泵的工作原理當(dāng)柱塞不能按設(shè)計(jì)規(guī)定的壓力運(yùn)行時(shí)(可根據(jù)實(shí)際情況)可以按以下幾種原因停機(jī):泵不出油:柱塞密封圈老化和堵塞引起回位或損壞;壓力低;油量不足;泵內(nèi)有異物;潤(rùn)滑不良;密封圈損壞或嚴(yán)重漏油;泵殼、齒輪磨損嚴(yán)重。

90L100KP丹佛斯雙聯(lián)柱塞泵工作原理(圖1)

停機(jī)時(shí)將泵放入油箱內(nèi);待壓力升高后開始泵工作;此時(shí)壓力降增大;泵內(nèi)壓力保持不變,當(dāng)壓力降到一定程度時(shí)真空泵突然啟動(dòng)泵內(nèi)壓力突然升高或下降;發(fā)動(dòng)機(jī)停機(jī)時(shí)排出柱塞泵內(nèi)壓力持續(xù)下降直到不能繼續(xù)下降;柱塞突然停止動(dòng)作甚至無(wú)法動(dòng)作;無(wú)法繼續(xù)泵注;突然停機(jī);壓力升至正常值;壓力恢復(fù)正常后;發(fā)動(dòng)機(jī)起動(dòng)困難或突然停止泵時(shí);由于泵腔內(nèi)充滿氣體或油液,而不能排出時(shí)(此時(shí)發(fā)動(dòng)機(jī)空載運(yùn)轉(zhuǎn))可能造成軸承嚴(yán)重?fù)p壞以及機(jī)械零部件損壞。

在工作過(guò)程中,當(dāng)油缸間隙過(guò)大時(shí)容易造成液壓缸回路堵塞,液壓缸阻力增大,液壓缸行程變短,液壓系統(tǒng)工作壓力降低液壓缸間隙過(guò)大時(shí),造成液壓缸活塞桿彎曲、磨損、軸向竄動(dòng)和油路漏油,使液壓缸受到污染而產(chǎn)生泄漏,導(dǎo)致缸間隙過(guò)大或超過(guò)要求密封間隙。

若液壓缸間隙過(guò)大,不能達(dá)到規(guī)定的密封要求時(shí),應(yīng)拆下密封墊片更換;若液壓缸間隙過(guò)大,缸內(nèi)壓降增大,使缸體受力變大,引起活塞桿彎曲、軸向竄動(dòng)和油路漏油,使液壓缸受到污染并產(chǎn)生泄漏,導(dǎo)致液壓系統(tǒng)發(fā)生泄漏;若液壓缸間隙過(guò)大,但活塞桿仍能保持在規(guī)定位置上或不會(huì)向外竄動(dòng),則說(shuō)明有缸孔堵塞或彈簧折斷;若壓力不足時(shí),在工作過(guò)程中可突然切斷動(dòng)力而使其停止工作;若高壓液壓缸間隙過(guò)大,不引起油壓下降和壓力升高而造成油缸壓傷或拉傷;若壓力下降幅度大且穩(wěn)定不變時(shí),可說(shuō)明高壓缸嚴(yán)重?fù)p壞。

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90-L-100-KP-1-BC-80-P-3-C7-E-03-GBA-35-35-24 90L100KP1BC80P3C7E03GBA353524 90-L-100-KP-1-BC-80-P-3-F1-D-03-GBA-29-29-24 90L100KP1BC80P3F1D03GBA292924 90-L-100-KP-1-BC-80-P-3-F1-E-03-GBA-38-38-24 90L100KP1BC80P3F1E03GBA383824 90-L-100-KP-1-BC-80-P-3-F1-E-03-GBA-45-45-24 90L100KP1BC80P3F1E03GBA454524 90-L-100-KP-1-BC-80-P-3-F1-F-03-EBC-29-29-24 90L100KP1BC80P3F1F03EBC292924 90-L-100-KP-1-BC-80-P-3-S1-E-03-GBA-35-35-24 90L100KP1BC80P3S1E03GBA353524。

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