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我厂在1969年从意大利进口了一台DE_2—350—300型双动650吨曲柄压力机。1978年1月在使用过程中,在第二传动齿轮轴上的一端,安装齿轮的轴颈处,发生了扭断。在轴的另一端,两个键槽也产生了纵向裂纹如图1所示。由此而造成停产,给生产带来了极大的影响。为了迅速修复这台压力机,厂召开了专门会议,对各种修复方案进行了讨论和研究。如果要更换一个新的齿轮轴,则制造周期长,那么,要在短时间内恢复生产是不可能的。我们从提出的多个修理方案中,选择了本文所介绍的方法进行修复。这样,从确定方案算起,仅用了一个多月,就修复了这台大型压力机。自从1978年6月投产以来,经生产实践证明,这种修复方法效果是好的,是成功的。
I plant in 1969 imported from Italy a DE_2-350-300 double action 650 tons crank press. January 1978 during use, the end of the second transmission gear shaft, the installation of gear journal, twisting occurred. At the other end of the shaft, the two keyways also created longitudinal cracks as shown in Figure 1. The resulting shutdown, to produce a tremendous impact. In order to quickly repair the press, the factory held a special meeting to discuss and study various repair programs. If you want to change a new gear shaft, the long manufacturing cycle, then, in a short period of time to resume production is impossible. We proposed a number of repair programs, chose the method described in this article to repair. In this way, it took only about a month since the program was finalized to repair the large press. Since it was put into operation in June 1978, production practice has proved that the effect of this restoration method is good and successful.