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《探讨》一文所提出的确定凸轮桃尖位置的新方法,在发动机凸轮的测量中得到了较普遍的应用。发表三年以来,不少读者来信确认:“敏感点”是确定桃尖位置的理想基准之一,但是往往由于装调方法不当,实际操作时又没有很好的掌握凸轮转角一升程变化的规律,只是试探估调,返来复去,速度太慢。尤其是当被测凸轮为不对称轮廓时,确定一个凸轮桃尖的分度头读数,往往几十分钟,甚至几个小时,直接影响着确定桃尖位置的新方法的应用。以敏感点为基准确定桃尖位置分度头读数的方法,我们简称“敏感点法”。敏感点法的
The new method of determining the position of cam peach tip proposed by “Discussion” has been widely used in the measurement of engine cam. Since its publication three years ago, many readers have confirmed by letter that “sensitive point” is one of the ideal benchmarks for determining the position of the peach apex. However, due to the improper method of adjustment and adjustment, Regularity, just tempted to assess, go back and forth, too slow. Especially when the measured cam is asymmetrical, determining the reading of the indexing head of a cam peach tip often takes dozens of minutes or even a few hours and directly affects the application of the new method for determining the position of the peach tip. The method of determining the reading position of the peach apex on the basis of the sensitive point is referred to as the “sensitive point method” for short. Sensitive point of law