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五、修旧利废、延长齿轮寿命 齿轮失效除齿面点蚀剥落、磨损外,断轴断齿也占一定数量。人字齿轮轴由于外径与轴径尺寸相差悬殊,造成应力集中,沿截面变化处断轴。太钢1700炉卷轧机、2300中板轧机和万能轧机,二重齿轮机座人字齿轮轴规格相同,72年以来轴颈断裂,各次断裂位置见图6。修复办法第一次断轴用电渣焊轴头,其余各次均为热装轴头。电渣焊的轴头传递相矩80吨·米,修复后从万能轧机换到炉卷轧机上又使用了四年多,76年3月另一端又拆断,而原电渣焊处安然无恙。
Fifth, repairing the old waste, to extend the life of the gear gear failure In addition to tooth pitting flaking, wear and tear, the broken off the broken teeth also account for a certain number. Herringbone gear shaft diameter due to the large difference between the size, resulting in stress concentration, broken along the cross-section change at the axis. TISCO 1700 furnace roll mills, 2300 plate mill and universal mill, double gear housing herringbone gear specifications the same, 72 years since the shaft fracture, the location of the fracture shown in Figure 6. Repair method for the first shaft with electroslag welding shaft, the remaining are hot-mounted shaft. Electroslag welding shaft phase transfer torque 80 tons · m, repaired from the universal mill to the furnace roll mill and then used for more than four years, the other end in March 76 and split, and the original electroslag welding at a safe and sound.