论文部分内容阅读
轮冠距H是指锥齿轮轴向基准至轮冠（齿轮的轴向剖面内顶锥与背锥的交点即理论外径尖点）之间的距离。该尺寸是锥齿轮齿坯公差的重要项目之一，也是测量齿厚时控制圆锥齿轮副啮合侧隙的一个间接测量基准。在轮冠距H合格的情况下，以理论外径人作为测量基准控制齿顶高知及弦齿厚S
The wheel crown H is the distance between the bevel gear axial datum and the wheel crown (the point of intersection of the top cone and the back cone in the axial section of the gear, ie, the theoretical outer diameter cusp). This dimension is one of the important items of the bevel gear tooth tolerance and also an indirect measure of the meshing backlash of the bevel gear when measuring tooth thickness. In the case of the wheel crown H pass, using the theoretical diameter as a measure of control of addendum Kochi chord tooth thickness S