牵引收割机的4115发动机原设计的动力输出胶带轮是用花键轴联结固定的。在作业中由于受冲击力作用,离合器轴键槽很快磨损,用电焊堆补的办法修复工作量大,而且很难保证修复质量。针对这种情况四十四团修配厂改变了原结构,先把磨损了的离合器轴端部分用电焊堆补,然后车削成锥度,配单槽键(如图1)。再加工一个4115发动 Traction harvester original 4115 engine power output pulley is fixed by spline shaft coupling. In operation due to the impact of the role of the clutch shaft keyway wear quickly, with the electric welding repair method to repair the workload, and it is difficult to ensure the quality of repair. In response to this situation forty-four repair team with the original factory structure changes, the first wear of the clutch shaft end part of the electric welding reactor make up, and then turning taper, with a single slot key (Figure 1). Re-processing a 4115 launch