20V2A葉片泵圖片     20V2A葉片泵圖片

 設(shè)備調(diào)試階段的故障率較高，存在問(wèn)題較為復(fù)雜，其特征是設(shè)計(jì)、制造、安裝以及管理等問(wèn)題交織在一起。除機(jī)械、電氣問(wèn)題外，一般液壓系統(tǒng)常見(jiàn)故障有：

 

 

    1)接頭連接處泄漏。

 

    2)運(yùn)動(dòng)速度不穩(wěn)定。

 

    3)閥心卡死或運(yùn)動(dòng)不靈活，造成執(zhí)行機(jī)構(gòu)動(dòng)作失靈。

 

    4)阻尼小孔被堵，造成系統(tǒng)壓力不穩(wěn)定或壓力調(diào)不上去。

 

    5)閥類元件漏裝彈簧或密封件，或管道接錯(cuò)而使動(dòng)作混亂。

 

6)設(shè)計(jì)、選擇不當(dāng)，使系統(tǒng)發(fā)熱，或動(dòng)作不協(xié)調(diào)，位置精度達(dá)不到要求。

 

7)液壓件加工質(zhì)量差，或安裝質(zhì)量差，造成閥類動(dòng)作不靈活。

 

8)長(zhǎng)期工作，密封件老化，以及易損元件磨損等，造成系統(tǒng)中內(nèi)外泄漏量增加，系統(tǒng)效率明顯下降。

 9.1.2 液壓元件常見(jiàn)故障及排除

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2520V雙聯(lián)葉片泵    

液壓傳動(dòng)系統(tǒng)在數(shù)控機(jī)床中占有很重要的位置，加工中心的刀具自動(dòng)交換系統(tǒng)(ATC)，托盤自動(dòng)交換系統(tǒng)，主軸箱的平衡，主軸箱齒輪的變檔以及回轉(zhuǎn)工作臺(tái)的夾緊等一般都采用液壓系統(tǒng)來(lái)實(shí)現(xiàn)。

機(jī)床液壓設(shè)備是由機(jī)械、液壓、電氣及儀表等組成的統(tǒng)一體，分析系統(tǒng)的故障之前必須弄清楚整個(gè)液壓系統(tǒng)的傳動(dòng)原理、結(jié)構(gòu)特點(diǎn)，然后根據(jù)故障現(xiàn)象進(jìn)行分析、判斷，確定區(qū)域、部位、以至于某個(gè)元件。液壓系統(tǒng)的工作是由壓力、流量、液流方向來(lái)實(shí)現(xiàn)的，可按照這些特征找出故障的原因并及時(shí)給予排除。造成故障的主要原因一般不外有三種情況：一是設(shè)計(jì)不完善或不合理；二是操作安裝有誤，使零件、部件運(yùn)轉(zhuǎn)不正常；三是使用、維護(hù)、保養(yǎng)不當(dāng)。前一種故障必須充分分析研究后進(jìn)行改裝、完善，后兩種故障可以用修理及調(diào)整的方法解決

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4535V雙聯(lián)葉片泵 20V3A-86A22R葉片泵 20V3A-86B22R葉片泵 20V3A-86C22R葉片泵 20V3A-86D22R葉片泵
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