粗轧机主传动扁头套寿命影响研究

Research on the factors affecting flat head sleeve life of main drive in rough rolling mill

针对迁钢1 580粗轧R1轧机主传动存在异响、扁头套寿命低的问题,分析了扁头套与轧辊扁头间的间隙冲击扭振对扁头套的影响,以及扁头套与轧辊扁头间间隙产生的原因,进而制定了在扁头套与轧辊扁头配合上增加定位装置、对轧辊扁头进行激光熔覆修复、改进扁头套衬板的固定方式、增加扁头套的防水润滑等措施并加以实施,从而使R1轧机主传动异响消除、扁头套寿命能提高1倍以上。

The abnormal noise in the main drive and short life of the fiat head sleeve of the 1 580 mm rough rolling mill R1 in Hebei Shougang Qian＇an Steel Company are discussed. The impact and torsional vibration ap- plied to the fiat head sleeve caused by the clearance between the fiat head sleeve and the fiat head of roller are analyzed. The reason accounting for the clearance between the fiat head sleeve and flat head is also analyzed. The following corrective measures are taken ： performing alignment design for the flat head sleeve suiting the flat head, laser cladding repair of the fiat head, improving the method for fixing the lining plate of fiat head sleeve, and increasing the waterproof lubrication of the fiat head sleeve. These measures can eliminate the abnormal noise, and increase the life of the flat head sleeve by more than 1 time.