罗茨真空泵的拆卸和安装步骤

  • Article source:Industry News
  • Website editor:莱诺真空泵
  • Reading volume:
  • Publication time:2020-01-11 09:14:54

罗茨真空泵使用一段时间后,会出现一些故障,我们在检修时要注意查看轴承、油封、机封、皮带等是否损坏,若损坏需及时更换,并做好罗茨泵的安装工作

1、拆卸及清洗

第一步,拆卸三角皮带,拆卸泵进出口管道和伴热蒸汽管线、氮气管线;拆卸地脚螺栓,把真空泵移到检修平台

第二步,打开泵顶部各级盖板,用塞尺从上盖板处插人测量转子和各级隔板的前后间隙,做好记录

最后,在真空泵上部的整个平面位置用记号笔,做好明显标记以免恢复时出错;标记清楚主动转子和从动转子的前后方位;拆卸真空泵的泵体连接螺栓,逐级从尾端拆卸,同时测量和记录各级隔板之间的纸垫厚度,直到完全解体。用酒精清洗干净真空泵各部件,结垢的部分可用纱纸清理;转子墙板和隔板拉毛的部分用锉刀修理平整,抛光机打磨光洁

2、安装步骤

准备好需要更换的新转子、滚动轴承、油封、机械密封、调整纸垫;把前后轴承箱墙板上的油封更换好备用

(1)用长方形框架固定检修平台上,把一级转子的前端隔板放在上面,按照标记放入主动和从动转子,逐级安装泵壳、隔板、级间密封环、调整纸垫以及四角处的圆柱定位销,注意调整纸垫的厚度需要和拆卸时的记录一致,拧紧泵体紧固螺栓

(2)泵体平放检修台,安装两端隔板处转子的节流环;安装轴承箱内墙板;安装轴承座及轴承

(3)用塞尺检查各级转子和隔板的前后间隙,要求其符合真空泵的检修手册间隙数据,一般是保证转子和前后隔板的间隙大于所要求的最小值,调整范围在0~+0.10mm

(4)预装同步齿轮:安装锁紧有键槽的同步齿轮,有圆锥的同步齿轮先用手轻轻压紧即可

(5)肥两转子角度调整为交叉90°,用塞尺插人第二级两转子之间,固定长轴垂直的转子;用手轻轻盘车另一个转子,感觉松紧前后相当,再把锁紧螺母拧紧在圆锥同步齿轮上;再手动盘车应无卡死现象

(6)用塞尺检查各级转子间的间隙,在两转子与水平线成±45°位置要作检查;D为两转子的总间隙,一般要求转子在-45°时为D/3,转子在+45°时间隙为2D/3

(7)安装前后轴承箱后盖板及油封、机械密封,安装后端冷却水箱,安装皮带轮

(8)罗茨真空泵安装回原设备基础,紧固地脚螺栓,调整三角皮带松紧度,恢复进出口管道连接

(9)加润滑油,检查密封情况,准备试车


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