二、齿轮啮合的一般理论引言齿轮传动是依靠两轮间齿面的啮合,将一个运动,通常是转动,带动另一个运动。一般两组运动可以认为是先给定的,例如依两平行轴的两转动,由一个带动另一个,就是所谓的圆柱齿轮传动;它们转动的角速度的比值,称为传动比;传动比可以是常量,也可以是时间参数的函数(后者通常称为非圆齿轮传动)。又例如蜗轮蜗杆的传动就是带动两个相 Second, the general theory of gear meshing Introduction Gear transmission is to rely on the meshing of gear surfaces between two wheels, a movement, usually a rotation, to drive another movement. General two groups of motion can be considered given, for example, according to two parallel rotation of two axes, one driven by the other, is the so-called cylindrical gear transmission; the ratio of their angular velocity of rotation, known as the gear ratio; transmission ratio can be Constant, but also a function of time parameters (the latter is often referred to as non-circular gear drives). Another example is the worm gear drive is driven by two phases