<section data-role="paragraph" class="_135editor" style="max-inline-size: 100%; margin: 0px; padding: 0px; border: 0px none; z-index: 0; overflow-wrap: break-word !important; outline: none 0px !important;"><p style="max-inline-size: 100%; margin-bottom: 0px; clear: both; min-height: 1em; cursor: text; line-height: 1.75em; overflow-wrap: break-word !important; outline: none 0px !important;"><span style="max-inline-size: 100%; margin: 0px; padding: 0px; cursor: text; caret-color: red; font-size: 15px; overflow-wrap: break-word !important; outline: none 0px !important;">&nbsp; &nbsp; 1.处理故障的要点<br style="max-inline-size: 100%; margin: 0px; padding: 0px; overflow-wrap: break-word !important; outline: none 0px !important;"></span></p><p style="max-inline-size: 100%; margin-bottom: 0px; clear: both; min-height: 1em; cursor: text; line-height: 1.75em; overflow-wrap: break-word !important; outline: none 0px !important;"><span style="max-inline-size: 100%; margin: 0px; padding: 0px; cursor: text; caret-color: red; font-size: 15px; overflow-wrap: break-word !important; outline: none 0px !important;"><br style="max-inline-size: 100%; margin: 0px; padding: 0px; overflow-wrap: break-word !important; outline: none 0px !important;"></span></p></section><section class="_135editor" data-role="paragraph" style="max-inline-size: 100%; margin: 0px; padding: 0px; border: 0px none; z-index: 0; overflow-wrap: break-word !important; outline: none 0px !important;"><p style="max-inline-size: 100%; clear: both; min-height: 1em; cursor: text; line-height: 1.75em; overflow-wrap: break-word !important; outline: none 0px !important;"><span style="max-inline-size: 100%; margin: 0px; padding: 0px; cursor: text; font-size: 15px; overflow-wrap: break-word !important; outline: none 0px !important;">&nbsp;&nbsp;&nbsp; (1)熟悉打包机每个开关的位置与作用。</span></p><p style="max-inline-size: 100%; clear: both; min-height: 1em; cursor: text; line-height: 1.75em; overflow-wrap: break-word !important; outline: none 0px !important;"><span style="max-inline-size: 100%; margin: 0px; padding: 0px; cursor: text; font-size: 15px; overflow-wrap: break-word !important; outline: none 0px !important;"><br style="max-inline-size: 100%; margin: 0px; padding: 0px; overflow-wrap: break-word !important; outline: none 0px !important;">&nbsp;&nbsp;&nbsp; (2)熟悉打包机每个工作机构的工作步骤。</span></p><p style="max-inline-size: 100%; clear: both; min-height: 1em; cursor: text; line-height: 1.75em; overflow-wrap: break-word !important; outline: none 0px !important;"><span style="max-inline-size: 100%; margin: 0px; padding: 0px; cursor: text; font-size: 15px; overflow-wrap: break-word !important; outline: none 0px !important;"><br style="max-inline-size: 100%; margin: 0px; padding: 0px; overflow-wrap: break-word !important; outline: none 0px !important;">&nbsp;&nbsp;&nbsp; (3)掌握打包机每个工作步骤中电磁铁的得电节拍表。</span></p><p style="max-inline-size: 100%; clear: both; min-height: 1em; cursor: text; line-height: 1.75em; overflow-wrap: break-word !important; outline: none 0px !important;"><span style="max-inline-size: 100%; margin: 0px; padding: 0px; cursor: text; font-size: 15px; overflow-wrap: break-word !important; outline: none 0px !important;"><br style="max-inline-size: 100%; margin: 0px; padding: 0px; overflow-wrap: break-word !important; outline: none 0px !important;">&nbsp;&nbsp;&nbsp; (4)掌握插装阀阀芯开启与关闭的控制原理。</span></p><p style="max-inline-size: 100%; clear: both; min-height: 1em; cursor: text; line-height: 1.75em; overflow-wrap: break-word !important; outline: none 0px !important;"><span style="max-inline-size: 100%; margin: 0px; padding: 0px; cursor: text; font-size: 15px; overflow-wrap: break-word !important; outline: none 0px !important;"><br style="max-inline-size: 100%; margin: 0px; padding: 0px; overflow-wrap: break-word !important; outline: none 0px !important;">&nbsp;&nbsp;&nbsp; (5)掌握MDY—400型打包机的液压原理,知道某一具体操作中,哪些阀芯必须关闭,哪些阀芯必须开启。如果该关闭的阀芯不能完全关闭,该开启的阀芯不能开启,必定造成油流走向错误,出现液压故障。</span></p><p style="max-inline-size: 100%; clear: both; min-height: 1em; cursor: text; line-height: 1.75em; overflow-wrap: break-word !important; outline: none 0px !important;"><span style="max-inline-size: 100%; margin: 0px; padding: 0px; cursor: text; font-size: 15px; overflow-wrap: break-word !important; outline: none 0px !important;"><br style="max-inline-size: 100%; margin: 0px; padding: 0px; overflow-wrap: break-word !important; outline: none 0px !important;">&nbsp;&nbsp;&nbsp; (6)发生故障时,不能单纯查找插装阀部分。故障还有可能涉及机械上的卡阻、电气部分的故障以及其他液压元件的故障。因此,发生故障时,必须全面、认真地检查,分清故障的类型(先机械、电气,最后才是液压),才能迅速排除故障。排除液压故障的过程中,切忌将物件装错或装反。否则,不但排除不了故障,还会使故障变得难以判断。</span></p><p style="max-inline-size: 100%; clear: both; min-height: 1em; cursor: text; line-height: 1.75em; overflow-wrap: break-word !important; outline: none 0px !important;"><span style="max-inline-size: 100%; margin: 0px; padding: 0px; cursor: text; font-size: 15px; overflow-wrap: break-word !important; outline: none 0px !important;"><br style="max-inline-size: 100%; margin: 0px; padding: 0px; overflow-wrap: break-word !important; outline: none 0px !important;">&nbsp;&nbsp;&nbsp; 2.排故过程与方法</span></p><p style="max-inline-size: 100%; clear: both; min-height: 1em; cursor: text; line-height: 1.75em; overflow-wrap: break-word !important; outline: none 0px !important;"><span style="max-inline-size: 100%; margin: 0px; padding: 0px; cursor: text; font-size: 15px; overflow-wrap: break-word !important; outline: none 0px !important;"><br style="max-inline-size: 100%; margin: 0px; padding: 0px; overflow-wrap: break-word !important; outline: none 0px !important;">&nbsp;&nbsp;&nbsp; 排故过程一般遵循先机械后电气,最后液压的顺序。机械方面检查有无卡阻、变形、开裂、磨损。电气方面可通过掌握PLC模块指示灯的输入输出情况,了解MDY—400型打包机某工作机构的工作条件,对照所需工作条件进行查找,分析出现的问题。通常的过程是检查各电动机运转是否正常,电动机控制器、保护器是否正常,各开关工作是否正常,接线是否良好,有无错误。还要检查各先导阀、压力继电器工作是否正常,接线是否良好,有无错误以及各先导阀得电是否符合节拍。</span></p><p style="max-inline-size: 100%; clear: both; min-height: 1em; cursor: text; line-height: 1.75em; overflow-wrap: break-word !important; outline: none 0px !important;"><span style="max-inline-size: 100%; margin: 0px; padding: 0px; cursor: text; font-size: 15px; overflow-wrap: break-word !important; outline: none 0px !important;"><br style="max-inline-size: 100%; margin: 0px; padding: 0px; overflow-wrap: break-word !important; outline: none 0px !important;">&nbsp;&nbsp;&nbsp; 液压方面,任何液压工作机构动作出现异常,均需首先检查供油压力是否正常。其次检查先导阀与控制油路。插装阀的大部分故障均与先导阀和控制油路有关,因此,检查先导阀和控制油路非常重要。最后检查阀芯、阀套,查看有无卡阻、磨损、损坏。</span></p><p style="max-inline-size: 100%; clear: both; min-height: 1em; cursor: text; line-height: 1.75em; overflow-wrap: break-word !important; outline: none 0px !important;"><span style="max-inline-size: 100%; margin: 0px; padding: 0px; cursor: text; font-size: 15px; overflow-wrap: break-word !important; outline: none 0px !important;"><br style="max-inline-size: 100%; margin: 0px; padding: 0px; overflow-wrap: break-word !important; outline: none 0px !important;">&nbsp;&nbsp;&nbsp; 对于液压故障,应熟悉掌握液压原理图,根据液压原理图下面的各工作步骤的节拍表进行处理。出现液压故障时,还需注意油泵运动副是否磨损或失效(修理或换新),油箱油位是否太低,油泵吸油量是否不足(加洁净油至要求量),油缸是否内泄(更换油封)等。</span></p><p style="max-inline-size: 100%; clear: both; min-height: 1em; cursor: text; line-height: 1.75em; overflow-wrap: break-word !important; outline: none 0px !important;"><span style="max-inline-size: 100%; margin: 0px; padding: 0px; cursor: text; font-size: 15px; overflow-wrap: break-word !important; outline: none 0px !important;"><br style="max-inline-size: 100%; margin: 0px; padding: 0px; overflow-wrap: break-word !important; outline: none 0px !important;">&nbsp;&nbsp;&nbsp; 3.通过专家诊断系统解决问题</span></p><p style="max-inline-size: 100%; clear: both; min-height: 1em; cursor: text; line-height: 1.75em; overflow-wrap: break-word !important; outline: none 0px !important;"><span style="max-inline-size: 100%; margin: 0px; padding: 0px; cursor: text; font-size: 15px; overflow-wrap: break-word !important; outline: none 0px !important;"><br style="max-inline-size: 100%; margin: 0px; padding: 0px; overflow-wrap: break-word !important; outline: none 0px !important;">&nbsp;&nbsp;&nbsp; 打包机自动运行时,若出现错误或故障,一般正在工作步骤的方框以红色闪烁,在流程图的左面中间有一方框,上面有文字:报警画面,点击进入。界面标题为:报警记录。点击出现的报警记录条,就会出现一解决界面。操作者应熟悉并应用该功能进行打包机的日常维护及故障处理。故障解决结束后,通过左上角的返回箭头返回,即退出报警处理界面。</span></p><p style="max-inline-size: 100%; clear: both; min-height: 1em; cursor: text; line-height: 1.75em; overflow-wrap: break-word !important; outline: none 0px !important;"><span style="max-inline-size: 100%; margin: 0px; padding: 0px; cursor: text; font-size: 15px; overflow-wrap: break-word !important; outline: none 0px !important;"><br style="max-inline-size: 100%; margin: 0px; padding: 0px; overflow-wrap: break-word !important; outline: none 0px !important;">&nbsp;&nbsp;&nbsp; 变频器诊断流程图如图12-7所示,变频器诊断系统图如图12-8所示,变频器的故障及解决方案见下表。</span></p><p style="max-inline-size: 100%; clear: both; min-height: 1em; cursor: text; line-height: 1.75em; text-align: center; overflow-wrap: break-word !important; outline: none 0px !important;"><img src="http://dayaotex-img.gz.bcebos.com/article/fffspic/tu12-7.png" _src="http://dayaotex-img.gz.bcebos.com/article/fffspic/tu12-7.png" draggable="false" data-ratio="1" style="margin: 0px; padding: 0px; max-inline-size: 100%; max-width: 100%; overflow-wrap: break-word !important; outline: none 0px !important; height: auto !important;"></p><section align="left" style="max-inline-size: 100%; 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outline: none 0px !important; height: auto !important;"><img src="http://dayaotex-img.gz.bcebos.com/article/fffspic/tu12-9-1.png" _src="http://dayaotex-img.gz.bcebos.com/article/fffspic/tu12-9-1.png" draggable="false" data-ratio="1" style="margin: 0px; padding: 0px; width: 464.444px; max-inline-size: 100%; max-width: 100%; overflow-wrap: break-word !important; outline: none 0px !important; height: auto !important;"><img src="http://dayaotex-img.gz.bcebos.com/article/fffspic/tu12-9-2.png" _src="http://dayaotex-img.gz.bcebos.com/article/fffspic/tu12-9-2.png" draggable="false" data-ratio="1" style="margin: 0px; padding: 0px; width: 464.444px; max-inline-size: 100%; max-width: 100%; overflow-wrap: break-word !important; outline: none 0px !important; height: auto !important;"><img src="http://dayaotex-img.gz.bcebos.com/article/fffspic/tu12-9-3.png" _src="http://dayaotex-img.gz.bcebos.com/article/fffspic/tu12-9-3.png" draggable="false" data-ratio="1" style="margin: 0px; padding: 0px; width: 464.444px; max-inline-size: 100%; max-width: 100%; overflow-wrap: break-word !important; outline: none 0px !important; height: auto !important;"></p><p style="max-inline-size: 100%; margin-bottom: 0px; clear: both; min-height: 1em; cursor: text; overflow-wrap: break-word !important; outline: none 0px !important;"><br style="max-inline-size: 100%; margin: 0px; padding: 0px; font-family: 微软雅黑, &quot;Microsoft YaHei&quot;, sans-serif; font-size: 17px; caret-color: rgb(255, 0, 0); overflow-wrap: break-word !important; outline: none 0px !important;"></p></section><p></p><p></p>