西门子6GK1901-1BB30-0AB0

6GK1901-1BB30-0AB0

.对于轴承杂音，应在电动机运行中经常监听。

监听方法是：将螺丝刀一端顶住轴承安装部位，另一端贴近耳朵，便可听到轴承运转声。若轴承运转正常，其声音为连续而细小的"沙沙"声，不会有忽高忽低的变化及金属摩擦声。

若出现以下几种声音，则为不正常现象:

(1)轴承运转时有"吱吱"声，这是金属摩擦声，一般为轴承缺油所致，应拆开轴承加注适量润滑脂。 

(2)若出现"唧哩"声，这是滚珠转动时发出的声音，一般为润滑脂干涸或缺油引起，可加注适量油脂。 

(3)若出现"喀喀"声或"嘎吱"声，则为轴承内滚珠不规则运动而产生的声音，这是轴承内滚珠损坏或电动机长期不用，润滑脂干涸所致。 

3.若传动机构和被传动机构发出连续而非忽高忽低的声音，可分以下几种情况处理。

(1)周期性"啪啪"声，为皮带接头不平滑引起。 

(2)周期性"咚咚"声，为联轴器或皮带轮与轴间松动以及键或键槽磨损引起。 

(3)不均匀的碰撞声，为风叶碰撞风扇罩引起。 

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