锥齿轮可用于改变90度的齿轮系统中的驱动器的方向。一个很好的例子，被看作是一个手钻的主要机制。当手柄是在垂直方向上转动的钻头，变更锥齿轮的卡盘的旋转的水平旋转。
Bevel gears can be used to change the direction of drive in a gear system by 90 degrees. A good example is seen as the main mechanism for a hand drill. As the handle of the drill is turned in a vertical direction, the bevel gears change the rotation of the chuck to a horizontal rotation.

一个典型的手钻 A TYPICAL HAND DRILL	放大视图，一只手钻锥齿轮机制 ENLARGED VIEW OF THE BEVEL GEARS OF A HAND DRILL MECHANISM

锥齿轮在一个手钻有额外的好处增加的卡盘的旋转速度，这使得有可能以钻材料的范围。
The bevel gears in a hand drill have the added advantage of increasing the speed of rotation of the chuck and this makes it possible to drill a range of materials.

锥齿轮的另一种形式被看作如下。这些是重量轻，由尼龙。尼龙齿轮通常用于电气设备，如DVD播放机。
An alternate form of bevel gears are seen below. These are lightweight and manufactured from nylon. Nylon gears are normally used in electrical equipment such as DVD players.

借助图表和笔记解释如何使用一个锥齿轮的机制/机器上，您见过或使用的部分。
With the aid of diagrams and notes explain how a bevel gear is used as part of a mechanism/machine you have seen or used.