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一、概况 公法线长度变动量Δl_g作为检查齿轮运动精度误差指标之一,我国的JB179—60,JB305—67等圆柱齿轮公差标准中是采用的。国外的齿轮公差标准,只有苏联采用。国内对Δl_(?)作为检查齿轮运动精度误差指标之一,常有不同的看法,例如公法线长度变动量是否能反映切向误差?它与齿圈经向跳动是否是彼此独立的?它能不能作为周节累积误差的代用指标之一等等。为使这些问题得出明确的答案。我们精细地测量了多批滚加工的齿轮,积累一定的数据。然后对所测的数据进行了系统的分析和研究,找出了它的一些规律,兹汇报于下:
First, an overview of the change in the length of the public law Δl_g error as one of the indicators to check the accuracy of gear movement, our country JB179-60, JB305-67 cylinder gear tolerance standards are used. Foreign gear tolerance standards, only the Soviet Union adopted. Domestic Δl_ (?) As one of the indicators of the accuracy of the inspection gear movement, often have different views, such as the normal length of the normal change can reflect the tangential error? It with the ring beating is not independent of each other? It can Can not be used as one of the surrogate indicators of accumulated error during the week, and so on. To give a clear answer to these questions. We finely measured the number of gears that were rolled and accumulated a certain amount of data. Then the measured data were systematically analyzed and studied, and some of its laws were found out. We hereby give our report on the following: