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style="text-indent:2em;"> <span style="font-size:16px;">有了伺服阀׃遇到l修斚w的问题?/span><span style="font-size:16px;">  </span> </p> <p class="MsoNormal" style="text-indent:2em;"> <span style="font-size:16px;">那么伺服阀的维修原理是什么呢Q根据故障现象ؓ液压油动作不良Q判断出伺服阀阀芯在动作q程中有颤抖动作Q其原因可分为电气和机械两大部分。因甉|故障处理较快Qؓ快l修Q故从电气处理开始?/span><span style="font-size:16px;">  </span> </p> <p class="MsoNormal" style="text-indent:2em;"> <span style="font-size:16px;">1.</span><span style="font-size:16px;">甉|部分  </span> </p> <p class="MsoNormal" style="text-indent:2em;"> <span style="font-size:16px;">设ؓ甉|部分出现故障Q则有可能ؓ控制信号串h交流信号、接U端子松?/span><span style="font-size:16px;">.</span><span style="font-size:16px;">q线接触不良。信号发生回路硬件故障,伺服攑֤回\g故障{原因。经查,可以排除控制信号串入交流信号的可能,接线端子牢固无松动现象,q线无接触不良,更换信号发生回\g模块和伺服放大回路硬件模块,故障现象依旧Q采用示波器量Q信h常。至此,基本排除甉|部分故障? </span> </p> <p class="MsoNormal" style="text-indent:2em;"> <span style="font-size:16px;">2.</span><span style="font-size:16px;">液压部分  </span> </p> <p class="MsoNormal" style="text-indent:2em;"> <span style="font-size:16px;">分别依次排除以下故障的可能性:油压道和a~内有空气、液压a污染、a~内漏严重、控制a路和La路压力不E_。最后认定是伺服阀本体故障。更换伺服阀先导部分</span><span style="font-size:16px;">.</span><span style="font-size:16px;">开机正常? </span> </p> <p class="MsoNormal" style="text-indent:2em;"> <span style="font-size:16px;">l拆开查,发现力矩马达导磁体与衔铁~隙中有许多金属屑,相当于减了衔铁在中位时的每个气隙长?/span><span style="font-size:16px;">g</span><span style="font-size:16px;">。根据《液压控制系l》的分析l论Q当</span><span style="font-size:16px;">|x/g|>1</span><span style="font-size:16px;">Q?/span><span style="font-size:16px;">3</span><span style="font-size:16px;">?/span><span style="font-size:16px;">(x</span><span style="font-size:16px;">铁端部偏M位的位移</span><span style="font-size:16px;">)</span><span style="font-size:16px;">Q衔铁L不稳定的。因此认为液压系l中的金属屑被吸附在永磁体上Q减了气隙长度</span><span style="font-size:16px;">g</span><span style="font-size:16px;">Q破坏了力矩马达原有的静态特性,是本ơ故障的Ҏ原因? </span> </p> <p class="MsoNormal" style="text-indent:2em;"> <span style="font-size:16px;">那么伺服阀的维护措施是什么呢Q?/span><span style="font-size:16px;">  </span> </p> <p class="MsoNormal" style="text-indent:2em;"> <span style="font-size:16px;">针对本次故障原因Q以及分析的其他可能Q采取了以下措施Q?/span><span style="font-size:16px;">  </span> </p> <p class="MsoNormal" style="text-indent:2em;"> <span style="font-size:16px;">1.</span><span style="font-size:16px;">定期更换油\滤芯Q清理变质a  </span> </p> <p class="MsoNormal" style="text-indent:2em;"> <span style="font-size:16px;">׃此次故障由液压a中金属污染造成Q因此定期更换该pȝ油\中的滤芯Q放掉o油器中存油,可防止污物进入伺服阀Q有效的防止故障发生Qg长伺服阀的运行时间?/span><span style="font-size:16px;">  </span> </p> <p class="MsoNormal" style="text-align:center;text-indent:2em;"> <span style="font-size:16px;"><img src="/uploads/image/20190625/20190625163019_3203.jpg" alt="伺服阀l修厂家" width="500" height="375" title="伺服阀l修厂家" align="" /><br /> </span> </p> <p class="MsoNormal" style="text-indent:2em;"> <span style="font-size:16px;">力矩马达和先导阀完全在与回a盔R的Ҏ里,位置又处于管道的盲端Q所以该处的Ҏ几乎不流动,易氧化变质,因此需定期放掉变质的液压a?/span><span style="font-size:16px;">  </span> </p> <p class="MsoNormal" style="text-indent:2em;"> <span style="font-size:16px;">2.</span><span style="font-size:16px;">定期更换液压油,加强液压油的理  </span> </p> <p class="MsoNormal" style="text-indent:2em;"> <span style="font-size:16px;">液压油在长期工作中会氧化焦化Qƈ且液压系l中的܇</span><span style="font-size:16px;">.</span><span style="font-size:16px;">阀、a~等的磨损,会生一些金属屑Q它们会降低液压油的品质Q造成故障。根据近几年液压油用周期和油品化验l果Q要?/span><span style="font-size:16px;">10</span><span style="font-size:16px;">个月更换一ơ液压aQ才能保证设备无计划外停机? </span> </p> <p class="MsoNormal" style="text-indent:2em;"> <span style="font-size:16px;">3.</span><span style="font-size:16px;">定期更换伺服阀  </span> </p> <p class="MsoNormal" style="text-indent:2em;"> <span style="font-size:16px;">此次故障的直接原因ؓ力矩马达被污染导致伺服阀动作不良Q因此定期清z、更换力矩马辑֒先导阀Q防止污染,从而杜l故障发生。伺服阀的装拆应在尽可能q净的环境中q行Q操作时应先L接到伺服阀上的甉|信号Q再卸掉液压pȝ的压力,然后拆下伺服阀。在q净、相容的商用溶剂中清z所有的零gQ零件可以晾q或用Y气管以洁净、干燥的I气吹干。清z后的伺服阀Q可以作为备件轮用,降低费用?/span><span style="font-size:16px;">  </span> </p> <p class="MsoNormal" style="text-indent:2em;"> <span style="font-size:16px;">4.</span><span style="font-size:16px;">定期更换查电气信P紧固接线端子Q防止松动,查连U,防止接触不良  </span> </p> <p class="MsoNormal" style="text-indent:2em;"> <span style="font-size:16px;">伺服阀是精密制造的机电一体化产品Q精度极高,Ҏ染十分敏感,它在l护、清z及对维护工作重要性的认识{方面的要求非常高,在实际用中一定要引v_的重视?/span><span style="font-size:16px;">  </span> </p> <p class="MsoNormal" style="text-indent:2em;"> <span style="font-size:16px;">q就是伺服阀的维护措施,大家可以适当的了解一下?/span><span style="font-size:16px;">  </span> </p></p></div> <p><div>下一?<a href="155.html">伺服阀l修厂家为您介绍国MOOG甉|伺服阀是如何工作的 </a></div> </p> <div class="tag">相关标签Q?a href='/key.aspx?k=%cb%c5%b7%fe%b7%a7%ce%ac%d0%de%b3%a7%bc%d2'>伺服阀l修厂家</a>,</div> </div> <div class="title2"><h3>相关新闻</h3></div> <div class="news_list"> <table width="100%" border="0" cellspacing="0" cellpadding="0"> <li><a href="/news/156.html">伺服阀l修厂家介绍怎样l护伺服阀 </a></li> <li><a href="/news/150.html">甉|伺服阀l修厂家Q详解电液伺服阀的作? </a></li> <li><a href="/news/143.html">伺服阀l修厂家为您你分享电液比例控制基本原? </a></li> <li><a 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