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分析了东风4、12 型机车速度传感器的安装结构和位置 ,指出速度传感器装于转向架的中间轴导致速度传感器传动轴与轴箱压盖相对移动量过大 ,传动轴滑出压盖槽孔是发生多起速度传感器传动轴损坏的根本原因。建议机车速度传感器装于转向架的端轴
The installation structure and position of the speed sensor of Dongfeng 4,12 locomotive are analyzed. It is pointed out that the relative displacement of the speed sensor drive shaft and the axle box gland is too large when the speed sensor is installed on the intermediate shaft of the bogie. The drive shaft slides out of the gland slot Is the root cause of multiple speed sensor shaft damage. It is recommended that the locomotive speed sensor be mounted on the end of the bogie