呼和电务段管内包西下行驼峰使用的TJK2型车辆减速器,在运用中多股道发生外制动轨被车辆轧伤,轧伤凹槽宽达10mm左右。当车辆进入减速器后,车轮顺凹槽爬上轨面,使减速器失去了对该车轮的控制作用,制动能高明显下降,同时极易引发脱轨事故。这个问题的出现明显加大了现场职工的维? Call and service section of the tube included in the hump down TJK2 type vehicle reducer, in the use of multi-track occurred outside the rail was rolling injury, rolling injury groove width of about 10mm. When the vehicle enters the decelerator, the wheel climbs up the track along the groove, so that the decelerator loses control of the wheel, the braking energy drops obviously, and the derailment accident can easily be caused at the same time. The emergence of this issue has obviously increased the dimension of on-site staff?