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href="http://www.cdcfah.com/cp/third-gcjjzj_wajuejixie/">挖掘機(jī)械</a>?遵義輪式挖掘機(jī)租賃哪家好貴州裕鑫工程機(jī)械供應(yīng)</p><div id="t22proq" class="leftbox clearfix"><h1>遵義輪式挖掘機(jī)租賃哪家好貴州裕鑫工程機(jī)械供應(yīng)</h1><div id="yxu332a" class="proBig"><div id="xhjb2di" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/bm03bazx/637243593665917968/1676529.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="jylixol" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/bm03bazx/637243593665917968/1676529.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="jikheqs" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</span>面議</p><p><span>所在地：</span>貴州省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>遵義輪式挖掘機(jī)租賃哪家好</p><p><span>***更新：</span>2020-06-08 11:16:36</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="zogifr8" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">貴州裕鑫工程機(jī)械有限公司</a></p><p><span>聯(lián)系人：</span>余濤</p><p><span>郵箱: </span>3623794418@qq.com</p><p><span>電話: </span>15692715256</p><p><span>傳真: </span>0851_</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>0851-85167915</p><p><span>地址: </span>貴州省貴安新區(qū)大學(xué)城（黨武鎮(zhèn)）貴安數(shù)字經(jīng)濟(jì)產(chǎn)業(yè)園7號樓409</p><p>[當(dāng)前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="q7mlcjq" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="h2bdpmy" class="box"><p><p> 挖掘機(jī)故障的排除：動臂提升無力且左回轉(zhuǎn)緩慢。一臺R942型液壓挖掘機(jī)的動臂提升無力，左回轉(zhuǎn)緩慢；當(dāng)繼續(xù)作業(yè)，油溫一升高，動臂就無法提升，同時左回轉(zhuǎn)幾乎不能轉(zhuǎn)動。分析認(rèn)為，在其他動作正常、主泵和主溢流閥完好的情況下，引起動臂無力的原因可能是：①主控制閥與滑閥閥芯及閥體因磨損導(dǎo)致間隙過大，遵義輪式挖掘機(jī)租賃哪家好，造成內(nèi)漏較大。②過載閥、補(bǔ)油閥損壞或調(diào)壓過低。③動臂缸密封損壞導(dǎo)致內(nèi)泄。④先導(dǎo)控制油路有故障。在油溫45～55℃時，對上述4個原因逐項(xiàng)進(jìn)行了檢查，結(jié)果**項(xiàng)均沒發(fā)現(xiàn)問題，但在檢查先導(dǎo)油路時，遵義輪式挖掘機(jī)租賃哪家好，發(fā)現(xiàn)控制動臂提升的先導(dǎo)閥手柄下有漏油現(xiàn)象。發(fā)動機(jī)高速運(yùn)轉(zhuǎn)時，測得動臂提升先導(dǎo)油I壓只有2MPa（標(biāo)準(zhǔn)值為），在這樣低的先導(dǎo)油壓控制下，自然不能將主控制閥閥芯推到行程較大的位置，因系統(tǒng)內(nèi)的流量、壓力均不夠，從而造成動臂提升無力。解體先導(dǎo)閥后發(fā)現(xiàn)，柱塞套內(nèi)的O形密封圈已損壞。換新后試機(jī)，遵義輪式挖掘機(jī)租賃哪家好，動臂提升恢復(fù)正常。此外，逐項(xiàng)檢查后發(fā)現(xiàn)過載閥上的先導(dǎo)閥錐閥芯磨損嚴(yán)重。將其在高精度外圓磨床上修磨后，裝機(jī)試驗(yàn)，左、右回轉(zhuǎn)都恢復(fù)正常。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="遵義輪式挖掘機(jī)租賃哪家好" src="https://tyunfile.71360.com/UploadFile/bm03bazx/637243593665917968/1676529.jpg"></div><p> 隨著科技的進(jìn)步，現(xiàn)代挖掘機(jī)一般都采用了機(jī)—電—液一體化控制模式，我們在排除一些故障時，解決的多是發(fā)動機(jī)—液壓泵—分配閥—外部負(fù)荷的匹配問題。一般在挖掘機(jī)作業(yè)中，這幾方面不能匹配，經(jīng)常會表現(xiàn)為：發(fā)動機(jī)轉(zhuǎn)速下降，工作速度變慢，挖掘無力等。工作速度變慢：如果是使用多年的挖掘機(jī)，速度逐漸變慢，這屬于正常磨損所致。主要因素整機(jī)各部磨損造成發(fā)動機(jī)功率下降與液壓系統(tǒng)內(nèi)泄，這樣就一系列故障都表現(xiàn)出來了，由于泄漏造成內(nèi)部能量消耗，產(chǎn)生大量熱能，使整個系統(tǒng)迅速升溫，液壓油及發(fā)動機(jī)機(jī)油粘度下降，使整個系統(tǒng)產(chǎn)生高溫，表現(xiàn)為涼車稍快越熱越慢，這就需要全機(jī)大修，對磨損超限的零部件進(jìn)行修復(fù)更換。如果是新挖機(jī)突然變慢，這就要先簡后繁，從以下幾方面檢查：先查電路保險絲是否斷路或短路;先導(dǎo)壓力是否正常;伺服控制閥-伺服活塞是否卡死;分配器合流故障等;排除了其它可能性，然后拆解液壓泵。貴州裕鑫工程機(jī)械有限公司是具有完善的施工隊(duì)及專業(yè)的維修隊(duì)伍。主營：挖掘機(jī)的整機(jī)租賃、土石方工程，等業(yè)務(wù)。常年對外出租，價格公道，誠實(shí)守信，合作共贏；租用方式靈活、包月、計(jì)時、按臺班均可。承接：大小土石方工程，歡迎咨詢洽談。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="遵義輪式挖掘機(jī)租賃哪家好" src="https://tyunfile.71360.com/UploadFile/bm03bazx/637243593685986328/4362968.jpg"></div><p> 挖掘機(jī)故障的排除：所有操作突然無反應(yīng)。一臺常州產(chǎn)現(xiàn)代220LC一5型液壓挖掘機(jī)，在使用過程中突然出現(xiàn)所有操作全都沒有反應(yīng)，但發(fā)動機(jī)仍正常運(yùn)行。根據(jù)此故障現(xiàn)象，打開液壓鎖操作手柄處的側(cè)蓋，測試?yán)锩孑p觸式二位開關(guān)，工作也正常。再打開主泵側(cè)蓋，拔去先導(dǎo)閥線圈的插頭，啟動發(fā)動機(jī)，釋放液壓鎖手柄，測得先導(dǎo)閥插頭的端電壓為27V，正常。后又測得先導(dǎo)閥電磁線圈的電阻為8MΩ（正常值為27Ω），說明電磁線圈已損壞。因本地?zé)o法購到同型號線圈，決定自己繞線圈。先車好骨架后用φ（此線圈電阻為28Ω），再將原來線圈的插頭與新線圈的接頭連接，并用布帶捆扎好，將線圈做浸漆絕緣烘干處理后，裝回原挖掘機(jī)，故障即消失。貴州裕鑫工程機(jī)械有限公司是具有完善的施工隊(duì)及專業(yè)的維修隊(duì)伍。主營：挖掘機(jī)的整機(jī)租賃、土石方工程，等業(yè)務(wù)。常年對外出租，價格公道，誠實(shí)守信，合作共贏；租用方式靈活、包月、計(jì)時、按臺班均可。承接：大小土石方工程，歡迎咨詢洽談。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="遵義輪式挖掘機(jī)租賃哪家好" src="https://tyunfile.71360.com/UploadFile/bm03bazx/637243593666054687/898289.jpg"></div></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/190609.html</p></div></div></div></div></div><div id="mdfhegi" class="page-right twoColRt"><div id="bgikh8y" class="box01 margin10 clearfix"><h3><a 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