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轮对中心线对转向架构架或蒸汽机车车架(以下分别简称构架或车架)纵中心线的不垂直度,是轮缘、轴箱滑动部分零件和钢轨磨损的主要原因.弯道行车时的轴线倾斜,使轮对对钢轨的冲击角增大,钢轨和轮缘的侧向磨损加剧.直线区段行车时,轴线倾斜会引起轮缘对钢轨的单向磨损. 导框滑动面纵向偏移量的测量误差,是造成轮对中心线对构架或车架纵中心线不垂直的主要原因之一.用角尺测量左侧梁导框滑动面对右侧梁导框滑动面的纵向偏移时,测量误差达2毫米.
The main reason that the center line of the wheelset is not perpendicular to the longitudinal center line of the bogie frame or the steam locomotive frame (hereinafter referred to simply as the frame or the frame) is the main reason for the wear of the rim, the sliding part of the axle box and the rail. Of the axis of inclination, so that the impact of the wheel on the rail increases, the rail and the rim of the lateral wear and tear aggravate straight line segment traffic, the axis of tilt will cause one-way wear on the rail flange. The measurement error of the displacement is one of the main reasons causing the centerline of the wheelset to be non-perpendicular to the longitudinal centerline of the frame or frame.Measuring the longitudinal offset of the sliding surface of the guide frame on the right When the measurement error of 2 mm.