在齿轮传动中,为了避免轮齿干涉,通常要限制小齿轮的齿数。许多书中规定了与齿条(即无限大齿轮)啮合时小齿轮的最少齿数,但是大多数小齿轮并不都是与齿条啮合,因此,实际上齿数还可以小于与齿条啮合时的齿数。这里介绍一种避免干涉的齿轮齿数计算法和查表法。已知小齿轮齿数N_p,则大齿轮允许的最大齿数N_o可由下式确定, In the gear drive, in order to avoid tooth interference, usually to limit the number of pinion gear. Many books prescribe the minimum number of pinions of a pinion engaged with a toothed rack (ie an infinite gear), but most pinions do not all mesh with the rack, so the actual number of teeth may also be less than the minimum Number of teeth. Here to introduce a method to avoid interference gear tooth count and look-up table method. Knowing the number of pinion teeth N_p, the maximum allowable number of teeth N_o of the large gear can be determined by the following formula,