The invention provides a rail vehicle gearbox, and belongs to the technical field of gear transmission. The gearbox comprises a driving shaft, a driven shaft, a first bearing block, and a second bearing block, and further comprises a first roller bearing, a ball bearing, a bearing inner retainer ring, and a bearing outer retainer ring used for drainage, wherein the first roller bearing, the ball bearing, the bearing inner retainer ring and the bearing outer retainer ring are arranged between the first bearing block and the driving shaft, the bearing inner retainer ring and the bearing outer retainer ring are arranged between the first roller bearing and the ball bearing in an axial direction of the driving shaft, a first drainage channel is arranged on the bearing outer retainer ring, a second drainage channel is arranged on the first bearing block, lubricating oil can be sequentially guided into the first roller bearing and the ball bearing from outside of the first bearing block through the second drainage channel and the first drainage channel. According to the gearbox, lubrication performance of the first roller bearing and the ball bearing on the driving shaft of the gearbox can be greatly improved, and the gearbox is particularly suitable for low-temperature working conditions.

    本发明提供一种轨道车辆的齿轮箱,属于齿轮传动技术领域。本发明的齿轮箱包括主动轴、从动轴、第一轴承座和第二轴承座;所述齿轮箱还包括:被布置在所述第一轴承座和所述主动轴之间的第一滚子轴承、球轴承、轴承内挡圈和用于引流的轴承外挡圈;其中,所述轴承内挡圈和轴承外挡圈沿所述主动轴的轴向而被布置在第一滚子轴承和球轴承之间,并且所述轴承外挡圈上设置有第一引流通道,所述第一轴承座上设置有第二引流通道;其中,润滑油能够依次通过所述第二引流通道和所述第一引流通道从所述第一轴承座外部引导进入所述第一滚子轴承和球轴承中。本发明能够大大提高齿轮箱的主动轴上的第一滚子轴承和球轴承的润滑性能,尤其适合于低温工况。


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    Title :

    Rail vehicle gearbox with novel bearing configuration mode


    Additional title:

    具有新型轴承配置方式的轨道车辆的齿轮箱


    Contributors:
    LI FENG (author) / QUE HONGBO (author) / ZHAO HUI (author) / LI HUA (author) / JIN SIQIN (author)

    Publication date :

    2020-05-19


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    F16H Getriebe , GEARING / B61C Lokomotiven , LOCOMOTIVES



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