Gear box used for track transportation vehicle

The utility model relates to a gear box used for track transportation vehicle, including box, input gear axle and output shaft, be equipped with output large gear on the output shaft, the input gear axle and the output shaft that are parallel to each other pass through the box respectively to be passed through the bearing and supports in each self -corresponding bearing frame, and the input gear axle sets up the labyrinth seal device with output large gear meshing, outside the bearing strong point of input gear axle and output shaft and the joint portion of box, its characterized in that, the box include box and lower box, go up the box and personally submit the bearing frame the central axis that the output shaft was arranged and crossed in the slope with the combination of box down, the bearing frame of input gear axle lies in the box, it still is provided with C type support mounting seat to go up the box. 本实用新型涉及种用于轨道交通车辆的齿轮箱，包括箱体、输入齿轮轴和输出轴，输出轴上设有输出大齿轮，相互平行的输入齿轮轴和输出轴分别穿越箱体通过轴承支撑于各自对应的轴承座，输入齿轮轴与输出大齿轮啮合，输入齿