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1·Based on the thermal elastic mechanics, the influence of temperature change on the normal backlash was analyzed, and the deviation of teeth width was calculated.

本文运用热弹性力学原理，分析了温度变化对啮合齿轮侧隙的影响以及对齿厚偏差选择的影响。

2·After getting the formula about the normal backlash and the stiffness of the tooth pairs of the gear, the contact ratio and the load correction factor could be obtained.

在获得齿轮内啮合传动的齿侧间隙计算公式以后，结合齿对刚度的计算公式，推导出齿轮内啮合传动的加载重合度及载荷修正系数。