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在圆柱齿轮公差标准JB179-60和305-62中,规定范成误差△φ_Σ作为评定齿轮运动精度的指标之一,这个指标是反映齿轮的切向误差即机床的运动误差的。但在实际生产中,由于不便测量,过去根本没有采用这个指标来评定齿轮的质量。在制订圆柱齿轮公差的新标准中,现在有一种普遍的意见,认为这个指标没有实际意义,建议取消。在小模数圆柱齿轮公差标准JB305-67和中模数圆柱齿轮公差国标草案中,已经取消了这个指标。近年作者在参
In the cylindrical gear tolerance standards JB179-60 and 305-62, the standard error △ φ_Σ is defined as one of the indicators to evaluate the accuracy of the gear. This index reflects the tangential error of the gear, that is, the movement error of the machine tool. However, in actual production, due to the inconvenience of measurement, in the past, this indicator was not used to evaluate the quality of gears. Among the new standards for setting tolerances on spur gears there is now a prevailing view that this indicator has no real meaning and is proposed to be eliminated. In the small module cylindrical gear tolerance standard JB305-67 and the standard cylindrical gear tolerance draft GB, this indicator has been canceled. In recent years, the author is participating