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1.概述锥齿轮是在相交轴之间传递机械运动和动力的零件,其种类很多,目前应用最广的是外啮合锥齿轮传动,如图1a所示。但是,锥齿轮传动并不都是外啮合。在轴交角大于90°的斜交锥齿轮传动中,当传动比和轴交角满足一定条件时,大齿轮的节锥角将会大于90°,这意味着它的轮齿必须分布在内锥面上,即成了内锥齿轮,此时在背锥展开图中,当量圆柱齿轮就成了内啮合圆柱齿轮,如图1b所示,这种锥齿轮传动就称为内啮合锥齿轮传动。具有圆弧齿的内啮合锥齿轮称为内啮合弧齿锥齿轮。
1. Overview Bevel gears are components that transfer mechanical motions and motions between intersecting axes. There are many types of bevel gears. The most widely used are bevel gears, as shown in Figure 1a. However, not all bevel gears are externally meshed. In skewed bevel gears with an axle angle greater than 90 °, the pitch angle of the bull gear will be greater than 90 ° when the gear ratio and shaft angle meet certain conditions, which means that its gear teeth must be distributed within the inner cone , Which became a bevel gear, then expand the back cone in the figure, the equivalent spur gear has become the internal spur gear, as shown in Figure 1b, this bevel gear drive is called internal bevel gear drive. The internal bevel gear with arc teeth is called internal bevel gear.