圆锥内圈小端油沟的测量，行业常用的方法之一是使用一块最大极限尺寸样板。根据产品设计要求，文中提出了“大范与小范”和“直径与宽度”两种测量方法，论述了两种测量方法的测量原理，推导出了有关设计计算公式，并对两种方法进行了比较分析．附图３幅，表３个，参考文献４篇。 One of the common methods used in the industry to measure small end sump cones in the inner cone is to use a model with a maximum limit dimension. According to the requirements of product design, this paper presents two measurement methods, “big and small” and “diameter and width”, discusses the measurement principle of the two measurement methods, deduces the calculation formula and carries out two methods A comparative analysis. Figure 3 Figure, Table 3, 4 references.