齿轮副必须具有侧隙,以便保证加工公差所需的空隙,防止齿轮在重载时相互咬死,以及保证平稳的工作。获得侧隙的一种方法是使齿轮副的中心距增加一个很小的量值。中心距的增量所形成的侧隙是可以计算的,但很不容易,并且需要使得许多三角函数。然而,运用本文图表能简化这一计算。 The gear pair must have a backlash in order to ensure the clearance required for machining tolerances, to prevent the gears from seizing each other during heavy loads, and to ensure smooth work. One way to get backlash is to increase the center distance of the gear pair by a small amount. The backlash created by the increase in center distance is computable, but not so easy, and requires many trigonometric functions. However, using this chart simplifies this calculation.