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</div> <li>联系åQšæŽè€å¸ˆ</li> <li>手机åQ?5223463988</li> <li>邮箱åQ?a href="/cdn-cgi/l/email-protection#794e4e484d4c404f4a4d390808571a1614" rel="nofollow"><span class="__cf_email__" data-cfemail="192e2e282d2c202f2a2d596868377a7674">[email protected]</span></a></li> <li>¾|‘址åQ?a href="http://www.666875.tw" rel="nofollow">www.666875.tw</a></li> <li>厂址åQšé‡åº†å¸‚九龙坡区白市驿净龙工业园åŒ?/li> </ul> </div> </div> <div class="fr insRight"> <div class="crumb font_w fs14"> <b class="fl"><a href="/">首页</a> > <a href="/supply/">供应产品</a> > <a href="/rlwjjwx/">日立挖掘机维ä¿?/a> > <a href="/supply/169.html"> è½ÀL¾æªå‡ºæ—¥ç«‹ZX200-3挖机动臂支èžR无故障分析点</a></b> </div> <div class="insNewsArti clearfix pt10 font_w"> <div class="proArtiTop"> <div class="picimg_wj"><h1> è½ÀL¾æªå‡ºæ—¥ç«‹ZX200-3挖机动臂支èžR无故障分析点</h1> 来源åQ?script data-cfasync="false" src="/cdn-cgi/scripts/5c5dd728/cloudflare-static/email-decode.min.js"></script><script>document.write('<a href="' + window.location.href + '">'+ window.location.href + '</a>');</script> 发布旉™—´åQ?020-08-26 00:00:00 <br /></div> </div> <div class="con fs14"> <p><a target="_blank" ></a><p style="text-indent:2em;">     <strong>è½ÀL¾æªå‡ºæ—¥ç«‹ZX200-3挖机动臂支èžR无故障分析点</strong><br />     挖掘机动臂支车无åŠ?br />     动臂支èžR没力气,甚至是支不è“v来挖掘机˜q™ç§æ•…障情况较äؓ常见åQŒä½†è§†æƒ…况严重程度机ä¸ÖM¼šé€‰æ‹©é©¬ä¸Š¾l´ä¿®æˆ–者åšg后修理ã€?</p> <p style="text-indent:2em;"> <img src="http://cmsimgshow.zhuchao.cc/35063/202008260852330193506326504.jpg" width="350" height="164" title="è½ÀL¾æªå‡ºæ—¥ç«‹ZX200-3挖机动臂支èžR无故障分析点" alt="è½ÀL¾æªå‡ºæ—¥ç«‹ZX200-3挖机动臂支èžR无故障分析点" /><br />     但有个前提是挖机其他动作都很正常åQŒå†åŠ ä¸Šæ‰‹ä¸­çš„确工程‹zÀL¯”较紧张无法åšg期!今天立特松挖掘机¾l´ä¿®æŽå¸ˆå‚…借该故障为大家详¾l†ä»‹¾læ•…障解军_…¨˜q‡ç¨‹ã€?br />     故障现象åQ?br />     挖掘机动臂下降,支èžR无力åQŒä¸¥é‡æ—¶ç”šè‡³æ”¯ä¸èµäh¥ã€‚而挖掘机其他动作正常ã€?br />     挖掘机动臂支车无力原因分æž?<br />     很多反映动臂支èžR支不èµäh¥åQŒå¦‚果按照上˜q°çš„故障现象来分析,其他动作都正常,那么首先我们可以排除åQ?br />     1åQšå‘动机动力不èƒöã€?br />     2åQšæ¶²åŽ‹æ܇的压力和‹¹é‡éƒ½æ²¡æœ‰é—®é¢˜ã€?br />     3åQšåŠ¨è‡‚æÑa¾~¸æ²¡æœ‰é—®é¢˜ã€?br />     当然åQŒæˆ‘们在现场‹‚€æŸ¥æŽ’除故障时åQŒä¹Ÿè‚¯å®šä¼šå…ˆ‹‚€æŸ¥ä¸Šé¢çš„几点åQŒåŸºæœ¬çš„发动æœø™¿è½¬å’Œæ¶²åŽ‹æ³ëŠš„压力‹‚€æŸ¥ç­‰åQŒå½“‹‚€æŸ¥å®Œæ¯•æ²¡æœ‰å…¶ä»–故障问题点åQŒå…¶ä»–动作也都正常,那么剩下的只有是动臂下降˜q™ä¸ª¾pȝ»Ÿæ²¹èµ\的问题了. </p> <p style="text-indent:2em;"> <img src="http://cmsimgshow.zhuchao.cc/35063/202008260853134563506341367.jpg" width="350" height="263" title="è½ÀL¾æªå‡ºæ—¥ç«‹ZX200-3挖机动臂支èžR无故障分析点" alt="è½ÀL¾æªå‡ºæ—¥ç«‹ZX200-3挖机动臂支èžR无故障分析点" /><br />     而要排查˜q™ä¸ªæ•…障点,我们必须先了解一下动臂下降的合流油èµ\的设计原理,每个品牌的挖掘机可能设计的æÑa路执行方式不一æ øP¼Œä½†å…¶åŽŸç†å¤§è‡´éƒ½æ˜¯ç›¸åŒçš„ã€?br />     挖掘机动臂支车无力原理剖析:<br />     我们以日立ZX200-3ä¸ÞZ¾‹åQšæ—¥ç«‹çš„动臂下降支èžR的液压控制是˜q™æ ·çš„:<br />     A.在动臂和斗杆之间的角度处åœ?0~110“ïåQŒåƈ且铲斗在地面上的情况下,在动臂下降操作中åQŒåŠ¨è‡‚æÑa¾~¸åº•éƒ¨åŽ‹åŠ›å˜ä½Žåƈ且动臂下降进æ²ÒŽˆª‹¹é˜€è¢«ç§»åŠ¨ã€?br />     B.ç”׃ºŽåŠ¨è‡‚下降先导压力被释放,动臂‹¹é‡æŽ§åˆ¶é˜€åQˆå¼€å…³é˜€åQ‰å’ŒåŠ¨è‡‚‹¹é‡æŽ§åˆ¶é˜€åQˆæåŠ¨å¤´é˜€åQ‰è¢«æ‰“开。动臂下降先导压力移动动è‡?阀柱ã€?br />     C.来自æ³?的压力æÑa‹¹ç»åŠ¨è‡‚1阀柱。来自æ܇2的压力æÑa通过æ³?阀æŸ×ƒ¸Žæ¥è‡ªæ³?阀æŸÞqš„压力油合‹¹ï¼Œåˆæµçš„压力æÑa‹¹å‘动臂油çŽ×‹zÕd¡žæ†ä¾§ã€?br />     从这个控制过½E‹ä¸­åQŒæˆ‘们可以看刎ͼŒåŠ¨è‡‚支èžR˜q˜æ˜¯ä¸¤æ܇合流åQŒè€Œä¸”˜q™é‡Œé¢æåˆîC¸¤ä¸ªé˜€åQšæµé‡æŽ§åˆ‰™˜€å’ŒåŠ¨è‡‚下降进æ²ÒŽˆª‹¹é˜€åQŒå…¶å®žè¿˜æœ‰ä¸€ä¸ªæ—é€šæˆªæ­¢é˜€åQŒç”¨äºŽå…³é—­ä¸­ä½æÑa路回油的åQŒå› ä¸ºå…¶ä»–动作都正常åQŒæ‰€ä»¥è¿™é‡Œæ—é€šæˆªæ­¢é˜€ä¸ç”¨è€ƒè™‘åQŒå› ä¸ºæ—é€šæˆªæ­¢é˜€å¦‚果有问题,那么动臂提升时也会有问题。那么问题点ž®±æÕQ出水面了åQ?</p> <p style="text-indent:2em;"> <img src="http://cmsimgshow.zhuchao.cc/35063/202008260854278003506371505.jpg" width="350" height="205" title="è½ÀL¾æªå‡ºæ—¥ç«‹ZX200-3挖机动臂支èžR无故障分析点" alt="è½ÀL¾æªå‡ºæ—¥ç«‹ZX200-3挖机动臂支èžR无故障分析点" /><br />     挖掘机动臂支车无力故障点解析:<br />     1、流量控刉™˜€åQŒè¿™ä¸ªé˜€æœ‰ä¸¤éƒ¨åˆ†åQŒå¼€å…³é˜€å’ŒæåŠ¨å¤´é˜€åQŒæ— è®ºé‚£å¤´æœ‰æ•…éšœåQŒéƒ½ä¼šå¯¼è‡´åŠ¨è‡‚下降的回æÑa打不开动臂下降˜q›æÑa截流阀åQŒé‚£ä¹ˆå…ˆå¯¼æÑaž®×ƒ¸èƒ½æµåˆ°åŠ¨è‡?阀杆,打不开2阀杆就不能形成两个泵合‹¹ã€‚所以就会支不è“vè½?br />     2、动臂下降进æ²ÒŽˆª‹¹é˜€åQŒè¿™ä¸ªé˜€å‡ºçŽ°æ•…障后动臂下降先导æÑa‹¹ä¸åˆ?阀杆测åQŒæ‰“不开2阀杆,不能两个泵合‹¹ï¼Œæ”¯ä¸èµ¯‚žRã€?br />     3、主阀杆磨损,有没有这个可能?不是其他动作都正常吗åQŸå…¶å®žè¿˜æ˜¯æœ‰çš„,主阀杆磨损位¾|®åœ¨åŠ¨è‡‚下降的æÑa口位¾|®ä¸å½±å“å…¶ä»–的动作,但会影响˜q™ä¸ªåŠ¨ä½œã€?</p> <p style="text-indent:2em;"> <img src="http://cmsimgshow.zhuchao.cc/35063/202008260855078163506338081.jpg" width="350" height="197" title="è½ÀL¾æªå‡ºæ—¥ç«‹ZX200-3挖机动臂支èžR无故障分析点" alt="è½ÀL¾æªå‡ºæ—¥ç«‹ZX200-3挖机动臂支èžR无故障分析点" /> </p> <p style="text-indent:2em;"> <br /> </p> <p style="text-indent:2em;"> <img src="http://cmsimgshow.zhuchao.cc/35063/202008260855583313506352736.jpg" width="350" height="321" alt="" /> </p> <p style="text-indent:2em;"> <br /> </p> <p style="text-indent:2em;"> <img src="http://cmsimgshow.zhuchao.cc/35063/202008260856522383506365427.jpg" width="350" height="128" title="è½ÀL¾æªå‡ºæ—¥ç«‹ZX200-3挖机动臂支èžR无故障分析点" alt="è½ÀL¾æªå‡ºæ—¥ç«‹ZX200-3挖机动臂支èžR无故障分析点" /><br />     挖掘机动臂支车无力解军_Šžæ³?<br />     拆卸/清洗/研磨。其实,大家的关键问题是有可能找不到˜q™äº›é˜€çš„位¾|®ï¼Œä¸€èˆ¬è¿™äº›é˜€éƒ½åœ¨åˆ†é…å™¨ä¸Šå¯¹åº”的各动作的主阀杆侧面或上下面ã€?br />     如果大家对位¾|®ä¸æ¸…楚的话可以拨打立特松挖掘机¾l´ä¿®åŽ?4ž®æ—¶¾l´ä¿®çƒ­çº¿ç”µè¯åQ?52-2346-3988åQŒæŽå¸ˆå‚…ž®†è¯¦¾l†äؓ大家解答ã€?</p></p> </div> <div class="proArtiNum mt10"> <p>上一条:<a href="/supply/170.html">只用1招瞬间解å†Ïx—¥ç«‹ZX200-3挖掘机动è‡?回è{复合动作慢故障问题?</a></p> <p>下一条:<a href="/supply/168.html">ž®æ¾æŒ–掘机维修厂_ž®æ¾æŒ–掘æœø™œ‚鸣器故障</a></p> </div> <div class="tag">相关标签åQ?a href="/download/">挖掘机维ä¿?/a>,<a href="/news/wjjwx">挖掘æœÞZ¿®ç?/a>,<a href="/about/about5.html">挖掘机维修厂</a></div> <div class="crumb mt15"> <span class="fl font_w fb fs22">相关新闻<b class="fs14 fn font_i ml5">RELATED NEWS</b></span> </div> <div class="insNews1 clearfix pt10 fs14 font_w"> <ul> <li><a href="/news/331.html" rel="nofollow">æœÞZ¸»éšçž’了重要线索,å¯ÆD‡´æŒ–掘机æÑa½Ž¡çªç„¶çˆ†è£‚原å›?/a><span>2020-10-16</span></li> <li><a href="/news/330.html" rel="nofollow"> 挖掘机åã^时出现æÑa温高会导致æÑa¾~¸æ–­è£‚的故障现象</a><span>2020-09-15</span></li> <li><a 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