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发布旉™—´åQ?021-06-18 00:00:00 <br /></div> </div> <div class="con fs14"> <p><a target="_blank" ></a><strong><a target="_blank">湖南çŽîC»£æŒ–掘机维修动作慢åQŒç†„火原因分æž?/a></strong><br /> <br /> 公司名称:<a target="_blank">重庆立特村ַ¥½E‹æœºæ¢°ç»´ä¿?/a>公司<br /> 联系äº?李师å‚?br /> 联系电话:152-2346-3988/微信同号<br /> ¾l´ä¿®èŒƒå›´:重庆åQŒæˆéƒ½ï¼Œè´µå·žåQŒäº‘南,甘肃åQŒé™•è¥¿ï¼Œå…¨å›½½{‰åœ°åŒ?br /> <br /> <br />     我厂有专业的液压调试台能快速检修故障,我厂自主创新了斜轴式柱塞æ³ëŠš„æ³ëŠ›–攚w€ ã€é…‹¹ç›˜ä¿®å¤ã€å¢žå¼ºæ܇胆的耐磨度、信息阀修复½{‰ç³»åˆ—技术。让你挖掘机ž®½å¿«ä¿®å¥½ž®½å¿«æŠ•å…¥å·¥ä½œèµšé’±ã€‚挖掘机故障¾l´ä¿®æ‰„¡«‹ç‰ÒŽ¾¾l´ä¿®å›¢é˜Ÿ¾léªŒä¸°å¯ŒåQŒè®¾å¤‡é½å…¨ï¼Œ¾l´ä¿®æ›´ç²¾å‡†ï¼Œå€¼å¾—ä¿¡èµ–ã€?br /> <br /> <br />    çŽîC»£R225LC-7型挖掘机怠速做动作转速上升慢åQŒç†„ç?br />     大家都知道,发动机和液压泉|˜¯ä¸€å°æŒ–掘机的äؓ核心的部件。挖æœø™¦æƒ›_Š¨ä½œä¸æ…¢ï¼Œòq²æ´»æœ‰åŠ²å¿…须要发动机和液压æ܇配合得当。今天给大家分äín一个由于液压æ܇的功率失调导致的故障案例ã€?br />     故障现象åQ?br />     出现故障的设备是一台现代R225LC-7型挖掘机åQŒè®¾å¤‡åœ¨æ€ é€Ÿæ—¶å€™åšåŠ¨ä½œè½¬é€Ÿä¸Šå‡å¾ˆæ…¢ï¼Œè€Œä¸”˜q˜ä¼šå‡ºçŽ°ç†„火现象åQŒå½“发动æœø™{速上升以后设备工作恢复正常ã€?br />     故障分析åQ?br />     ¾l´ä¿®äººå‘˜æ ÒŽ®è®‘Ö¤‡çš„故障表玎ͼŒåˆ†æžé€ æˆè®‘Ö¤‡æ•…障的原因主要有åQ?br />     1、自动怠速压力开兛_’Œæ²¹èµ\故障<br />     2、液压æ܇‹¹é‡å¤Þp°ƒé€ æˆæ€ é€Ÿå‘动机˜q‡è²<br />     ‹‚€æŸ¥è¿‡½E‹ï¼š<br />     1、首先维修äh员检查了自动怠速压力开养I¼Œè‡ªåŠ¨æ€ é€ŸæÑa路正常,压力æ˜?5barã€?br />     2、维修äh员试æœÞZ¹‹åŽå‘玎ͼŒè®‘Ö¤‡åªæœ‰åœ¨åšå¤§å°è‡‚动作时候才会出现故障,大臂上升åQŒå°è‡‚回收弹出都会出现è{速上升很慢,而设备做回è{和行走时发动机是正常的。判断是做大ž®è‡‚动作时负荷太大,而发动机在低转速时候的功率输出比较ž®ï¼Œè€Œæ¶²åŽ‹æ܇‹¹é‡å¤„于较大状态ã€?br />     3、在讑֤‡æ€ é€Ÿæ—¶å€™æ£€æŸ¥ä¸»æ³ëŠš„ç”늣æ¯”例减压阀åQŒç”µè·¯éƒ¨åˆ†æ˜¯æ­£å¸¸çš„,但是没有压力。于是拆‹‚€ç”늣æ¯”例减压阀后发现阀芯不能移动,阀体弯曌Ӏ?br />     工作原理åQ?br />     ç”늣æ¯”例减压阀是根据挖掘机不同工作状况下的功率来调节主æ³ëŠš„功率辑ֈ°ç›æ€º’匚w…ã€‚电¼‚é˜€æŽ¥å—电脑板传来的甉|µä¿¡å·çš„大ž®æ¥¿UÕdŠ¨æ»‘阀阀芯,滑阀有两¿Uæ–¹å¼æŽ§åˆ¶å…ˆå¯¼åŽ‹åŠ›ä»Žè€Œå‡ž®‘主泵输出流量来减小功率åQŒå½“ç”늣é˜€é€šç”µå…ˆå¯¼åŽ‹åŠ›˜q›å…¥è°ƒèŠ‚器调节主泉|µé‡ã€?br />     如果阀芯不能移动,ä¸ÀL܇‹¹é‡ä¸€ç›´åœ¨è¾ƒå¤§çŠ¶æ€æ— æ³•è°ƒèŠ‚就会造成发动机怠速过载,å¯ÆD‡´æ•…障产生ã€?br />     故障解决åQ?br />     更换损坏的电¼‚æ¯”例减压阀之后讑֤‡æ¢å¤æ­£å¸¸åQŒæ•…障解除ã€?br />     æ€È»“åQ?br />     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