The insulating rubber sealing layer is stuck on the surface of the unidirectional weftless tape banding layer for the commutator. The ring groove is arranged at the end of the commutator plate.

所述的换向器在无纬带绑扎层表面粘接有绝缘胶泥密封层，在换向片端部有一环状沟槽。

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The invention provides a reliable rotor commutator welding method, including the steps: the coil end heads of the upper coil and the lower coil are welded through the argon-arc welding;

本发明提供一种焊接可靠的转子换向器焊接方法，包括如下步骤：将上 层线圈与下层线圈的绕组端头通过氩弧焊焊接成一体；

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Frame is a press-formed welded fabrication and hugging bearing or bush structure; Speed gear plate is mounted on shaft end of commutator.

换向器端轴头装有测速齿盘，换向器轴承盖留有轴承温度传感器安装口。

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