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众所周知,电传动机车用抱轴式牵引电动机机座上的机座孔与抱轴孔的加工,是保证牵引电动机组装与可靠运行的重要环节。我厂为了适应电力机车批量生产的需要,保证大小传动齿轮的正确啮合,曾自行设计、制造了双杆镗床来镗削电机座上的两个孔。由于这两个孔的中心线与水平线成20°交角,所以在考虑机床的两根主轴位置时,也相应与水平线成20°交角。这种布置,既方便了工件安装,又满足了孔的加工精度和光洁度要求,特别是保证了电机座上两个孔的平行度要求,非常有利于传动齿轮的正确啮合,对延长齿轮寿命和减少机
It is well-known that the machining of machine seat holes and shaft holding holes on the axle motor of traction motor for electric locomotive is an important part of ensuring the assembly and reliable operation of the traction motor. I plant in order to meet the needs of mass production of electric locomotive to ensure the size of the correct meshing gear, had designed and manufactured a dual-rod boring machine to boring the two holes on the motor base. Since the centerline of the two holes intersects the horizontal at a 20 ° angle, the two main axes of the machine are also angled at a 20 ° angle to the horizontal. This arrangement not only facilitates the installation of the workpiece, but also meets the processing requirements of the hole and the finish. In particular, it ensures the parallelism of the two holes on the motor base and is very conducive to the correct meshing of the transmission gears. Reduce the machine