14、拆下密封體、軸套；
15、用橡膠榔頭輕輕敲擊葉輪輪轂將葉輪從軸上退出：
16、拆下另一端軸套、密封體，拆下聯(lián)軸器，拆下軸承體；
17、松開彈性擋圈，退出深溝軸承。
裝配順序按拆卸順序相反進(jìn)行，但必須注意：
1、安裝轉(zhuǎn)子時(shí)必須將軸放穩(wěn)，所有的配合螺紋和間隙配合處都必須清洗并涂上裝配粘合劑；
2、裝帶有間隙配合的葉輪時(shí)，應(yīng)注意葉輪的轉(zhuǎn)向；
3、深溝軸承須加熱后裝上軸(軸套)；
4、為補(bǔ)嘗泵軸與軸上零件之間由于熱膨脹產(chǎn)生的誤差，在用圓螺母和彈性墊圈壓緊轉(zhuǎn)子時(shí)須將彈性墊圈壓至極限點(diǎn)，然后旋轉(zhuǎn)180°松開圓螺母。
1、檢查水泵和電機(jī)應(yīng)無損壞；
2、混凝土基礎(chǔ)應(yīng)牢固，表面光滑平整；
3、把地腳螺栓插入底座上的螺孔，把泵放在基礎(chǔ)上，用水平儀在軸端或出口端調(diào)整水平，在泵腳和基礎(chǔ)靠近地腳螺栓處必須墊墊塊；
4、泵調(diào)整好水平后，給地腳螺栓灌漿，堅(jiān)固后均勻地?cái)Q緊地腳螺栓，并重新調(diào)整水平，然后給底腳灌漿；
5、校正電機(jī)與水泵軸的同心度，使兩軸成一直線，兩聯(lián)軸器外圓上的不同心度允差為
|
13. Remove block water ring
from shaft-protecting sleeve;
14. Remove shaft seal
housing;
Pull off shaft protecting
sleeve;
15. The impeller located
with sliding fit on the shaft and can normally be removed easily. In case of difficulty, it can be loosened by gently tapping
with a plastic hammer;
16. Remove second shaft protection sleeve
complete with the shaft seal housing, if fitted. Remove eouping half and pull off deep groove ball bearing;
17. Pull off bearing
housing. Remove eirelip and pull off deep groove ball bearing.
Reassembly is effected in
reverse order to; dismantling, but must give your attention to:
1. For assembling the
rotor, position the pump shaft
securely. All fits, threads and sliding fits of the shaft must be cleaned and
coated with assembly paste;
2. Mount the impeller, which
has a sliding fit. When fitting the impeller, observe the direction of rotation;
3. Heat the deep groove ball bearing and
fit it onto the shaft(sleeve);
4. For compensate
differences in thermal expansion between pump shaft and the components fitted
on it. Tension the rotor parts elasti- cally with groove nut and disc spring.
For this purpose tension the disc spring to blocking point and then undo the
grooved nut again by half a turn 180℃.
1. Chech whether the pump
and the motor are in good condition;
2. The concrete foundation
must have been set hard and the surface must be smooth and flat;
3. Loosely insert the
foundation bolts in the baseplate. Position the pump set on the pump set on the
foundation and align using a spirit . level placed on the shaft or discharge
nozzle. Shims must always be fitted to the left and right of the foundation
bolts in close proximity to the bolts, between the baseplate or foundation frame and the foundation itself.
4. After alignment, grout in
the foundation bolts using cement mortar. When the mortar has been set hard,
uniformly tighten up the bolts and re - cheek the alignment. Grout in the
baseplate (non- shrinking mortar is highly recommended), ensuring that no
cavities remain.
|