导轨的磨损在很大程度上与导轨表面的比压(单位面积上的压力)有关。导轨面的接触变形与比压又近似地成比例关系。如果导轨的比压不大,分布又比较均匀,则导轨的磨损与接触变形也不大且分布较均匀,对导轨的工作精度影响也小。 设计导轨时,在初步确定了导轨的形状和尺寸后,应计算 The wear of the guideway is to a large extent related to the specific pressure (pressure per unit area) of the guideway surface. The contact deformation of the rail surface is approximately proportional to the specific pressure. If the rail pressure is not relatively small, the distribution is relatively uniform, the rail wear and contact deformation is not large and more evenly distributed, the impact of rail precision is also small. When designing the guide rail, after the shape and size of the guide rail have been initially determined, it should be calculated