货车车辆的轮对是由一根车轴与两个车轮,采用过盈配合、冷压组装而成的部件。它在运用时,承受车辆的全部重量,并受到动载荷、水平载荷和制动载荷的作用。若轮对组装质量不好,在行车过程中就会出现车轮与车轴松动、内侧距超差等现象,甚至酿成脱轨事故,直接威胁行车安全。根据《轮对组装规则》(以下简称“轮规”)规定,衡量轮对压装质量的好坏,主 The wheelset of a truck is composed of an axle and two wheels, which are assembled by interference fit and cold pressing. It is in use, to bear the full weight of the vehicle, and by the dynamic load, horizontal load and the role of brake load. If the wheel assembly quality is not good, in the process of driving there will be loose wheels and axles, medial distance from the poor and so on, and even lead to derailment accidents, a direct threat to traffic safety. According to the “wheel assembly rules” (hereinafter referred to as “wheel gauge”) provides that the quality of the wheel to measure the quality of the main