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渐开线齿形的正确性是保证齿轮啮合平稳性的重要指标之一。因此正确测量和合理评定齿形误差是个重要问题。标准规定齿形误差(△f)乃是在齿廓工作部分内容纳实际齿形的两理论齿形间的法向距离。因而在渐开线检查仪器上测量齿形时,必须按照工作部分计算出合理的起始和终止测量点。这是测量过程中调整仪器和评定齿形误差不可缺少的根据。本文目的除一般介绍起始、终止测量点和有效测量长度的计算公式外,还根据计算
The correctness of involute tooth profile is one of the most important indexes to ensure the smoothness of gear meshing. Therefore, accurate measurement and reasonable assessment of tooth profile error is an important issue. The standard specifies that the tooth profile error (Δf) is the normal distance between two theoretical tooth profiles that accommodate the actual tooth profile in the working part of the tooth profile. Therefore, when measuring the profile on the involute inspection instrument, it is necessary to calculate a reasonable start and end measurement point according to the working part. This is an indispensable basis for adjusting the instrument and evaluating the tooth profile error during the measurement. In addition to the general purpose of this article to introduce the starting and ending measuring points and effective measurement length of the formula, but also calculated